#ifndef __LIBSAIO_ACPI_H
#define __LIBSAIO_ACPI_H

#define ACPI_RANGE_START    (0x0E0000)
#define ACPI_RANGE_END      (0x0FFFFF)

#define UINT64_LE_FROM_CHARS(a,b,c,d,e,f,g,h) \
(   ((uint64_t)h << 56) \
|   ((uint64_t)g << 48) \
|   ((uint64_t)f << 40) \
|   ((uint64_t)e << 32) \
|   ((uint64_t)d << 24) \
|   ((uint64_t)c << 16) \
|   ((uint64_t)b <<  8) \
|   ((uint64_t)a <<  0) \
)

#define ACPI_SIGNATURE_UINT64_LE UINT64_LE_FROM_CHARS('R','S','D',' ','P','T','R',' ')

/* Per ACPI 3.0a spec */

// TODO Migrate
struct acpi_2_rsdp {
    char            Signature[8];
    uint8_t         Checksum;
    char            OEMID[6];
    uint8_t         Revision;
    uint32_t        RsdtAddress;
    uint32_t        Length;
    uint64_t        XsdtAddress;
    uint8_t         ExtendedChecksum;
    char            Reserved[3];
} __attribute__((packed));

// TODO Migrate
struct acpi_2_rsdt {
	char            Signature[4];
	uint32_t        Length;
	uint8_t         Revision;
	uint8_t         Checksum;
	char            OEMID[6];
	char            OEMTableId[8];
	uint32_t        OEMRevision;
	uint32_t        CreatorId;
	uint32_t        CreatorRevision;
} __attribute__((packed));

// TODO Migrate
struct acpi_2_xsdt {
	char            Signature[4];
	uint32_t        Length;
	uint8_t         Revision;
	uint8_t         Checksum;
	char            OEMID[6];
	char            OEMTableId[8];
	uint32_t        OEMRevision;
	uint32_t        CreatorId;
	uint32_t        CreatorRevision;
} __attribute__((packed));

// TODO Migrate
struct acpi_2_fadt {
	char            Signature[4];
	uint32_t        Length;
	uint8_t         Revision;
	uint8_t         Checksum;
	char            OEMID[6];
	char            OEMTableId[8];
	uint32_t        OEMRevision;
	uint32_t        CreatorId;
	uint32_t        CreatorRevision;
	uint32_t        FIRMWARE_CTRL;
	uint32_t        DSDT;
	/*We absolutely don't care about theese fields*/
	uint8_t         notimp1[68];
	//Reset Fix
	uint32_t		Flags;
	uint8_t			Reset_SpaceID;
	uint8_t			Reset_BitWidth;
	uint8_t			Reset_BitOffset;
	uint8_t			Reset_AccessWidth;
	uint64_t		Reset_Address;
	uint8_t			Reset_Value;
	uint8_t			Reserved[3];
	
	uint64_t	    X_FIRMWARE_CTRL;
	uint64_t	    X_DSDT;
	/*We absolutely don't care about theese fields*/
	uint8_t         notimp2[96];
} __attribute__((packed));

#endif /* !__LIBSAIO_ACPI_H */