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| Rev | Author | Line No. | Line |
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| 29 | jermar | 1 | /* |
| 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 | |||
| 29 | #ifndef __ACPI_H__ |
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| 30 | #define __ACPI_H__ |
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| 31 | |||
| 32 | #include <arch/types.h> |
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| 33 | |||
| 34 | /* Root System Description Pointer */ |
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| 35 | struct acpi_rsdp { |
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| 36 | __u8 signature[8]; |
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| 37 | __u8 checksum; |
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| 38 | __u8 oemid[6]; |
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| 39 | __u8 revision; |
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| 40 | __u32 rsdt_address; |
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| 41 | __u32 length; |
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| 42 | __u64 xsdt_address; |
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| 43 | __u32 ext_checksum; |
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| 44 | __u8 reserved[3]; |
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| 45 | } __attribute__ ((packed)); |
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| 46 | |||
| 47 | /* System Description Table Header */ |
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| 48 | struct acpi_sdt_header { |
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| 49 | __u8 signature[4]; |
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| 50 | __u32 length; |
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| 51 | __u8 revision; |
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| 52 | __u8 checksum; |
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| 53 | __u8 oemid[6]; |
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| 54 | __u8 oem_table_id[8]; |
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| 55 | __u32 oem_revision; |
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| 56 | __u32 creator_id; |
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| 57 | __u32 creator_revision; |
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| 58 | } __attribute__ ((packed));; |
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| 59 | |||
| 33 | jermar | 60 | struct acpi_signature_map { |
| 61 | __u8 *signature; |
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| 62 | struct acpi_sdt_header **sdt_ptr; |
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| 63 | char *description; |
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| 64 | }; |
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| 65 | |||
| 29 | jermar | 66 | /* Root System Description Table */ |
| 67 | struct acpi_rsdt { |
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| 68 | struct acpi_sdt_header header; |
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| 69 | __u32 entry[]; |
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| 70 | } __attribute__ ((packed));; |
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| 71 | |||
| 72 | /* Extended System Description Table */ |
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| 73 | struct acpi_xsdt { |
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| 74 | struct acpi_sdt_header header; |
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| 75 | __u64 entry[]; |
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| 76 | } __attribute__ ((packed));; |
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| 77 | |||
| 78 | extern struct acpi_rsdp *acpi_rsdp; |
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| 33 | jermar | 79 | extern struct acpi_rsdt *acpi_rsdt; |
| 80 | extern struct acpi_xsdt *acpi_xsdt; |
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| 29 | jermar | 81 | |
| 82 | extern void acpi_init(void); |
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| 32 | jermar | 83 | static int rsdp_check(__u8 *rsdp); |
| 33 | jermar | 84 | static void map_sdt(struct acpi_sdt_header *sdt); |
| 85 | extern int acpi_sdt_check(__u8 *sdt); |
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| 86 | static void configure_via_rsdt(void); |
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| 87 | static void configure_via_xsdt(void); |
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| 32 | jermar | 88 | |
| 29 | jermar | 89 | #endif /* __ACPI_H__ */ |