-/*
- * acpi.h
- * ACPI support.
- *
- * Copyright (C) 2008 Nguyen Anh Quynh <aquynh@gmail.com>
- * Copyright (C) 2002 MandrakeSoft S.A.
- *
- * This file may be distributed under the terms of the GNU GPLv3 license.
- */
-
#ifndef __ACPI_H
#define __ACPI_H
-#define ACPI_DATA_SIZE 0x00010000L
-
-extern int acpi_enabled;
+#include "types.h" // u32
void acpi_bios_init(void);
+u32 find_resume_vector(void);
+
+#define RSDP_SIGNATURE 0x2052545020445352LL // "RSD PTR "
+
+struct rsdp_descriptor { /* Root System Descriptor Pointer */
+ u64 signature; /* ACPI signature, contains "RSD PTR " */
+ u8 checksum; /* To make sum of struct == 0 */
+ u8 oem_id [6]; /* OEM identification */
+ u8 revision; /* Must be 0 for 1.0, 2 for 2.0 */
+ u32 rsdt_physical_address; /* 32-bit physical address of RSDT */
+ u32 length; /* XSDT Length in bytes including hdr */
+ u64 xsdt_physical_address; /* 64-bit physical address of XSDT */
+ u8 extended_checksum; /* Checksum of entire table */
+ u8 reserved [3]; /* Reserved field must be 0 */
+};
+
+extern struct rsdp_descriptor *RsdpAddr;
-#endif
+#endif // acpi.h