#ifndef __LIBSAIO_ACPI_H
#define __LIBSAIO_ACPI_H

#define ACPI_RANGE_START    (0x0E0000)
#define ACPI_RANGE_END      (0x0FFFFF)
#define EBDA_RANGE_MIN      (0x080000)
#define EBDA_RANGE_END      (0x09FFFF)
#define BDA_EBDA_START      (0x00040E)

#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',' ')

#define swapUint16(x) ((((uint16_t)x & 0xFF00) >> 8) | \
                       (((uint16_t)x & 0x00FF) << 8))

#define swapUint32(x) ((((uint32_t)x & 0xFF000000) >> 24) | \
                       (((uint32_t)x & 0x00FF0000) >> 16) | \
                       (((uint32_t)x & 0x0000FF00) >>  8) | \
                       (((uint32_t)x & 0x000000FF) << 24))

/* Per ACPI 3.0a spec */

// TODO Migrate
struct acpi_2_rsdp
{
	// 1.0
	char			Signature[8];
	uint8_t			Checksum;
	char			OEMID[6];
	uint8_t			Revision;
	uint32_t		RsdtAddress;
	// 2.0
	uint32_t		Length;
	uint64_t		XsdtAddress;
	uint8_t			ExtendedChecksum;
	char			Reserved[3];
} __attribute__((packed));

struct acpi_2_header
{
	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_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_ssdt
{
	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));

struct ssdt_pmref
{
	char oemTabID[9];
	char byte1;
	uint32_t addr;
	char byte2;
	uint32_t length;
	char byte3;
} __attribute__((packed));

// TODO Migrate
struct acpi_2_dsdt
{
	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		FACS;
	uint32_t		DSDT;
	uint8_t			Model;			// JrCs
	uint8_t			PM_Profile;		// JrCs
	uint16_t		SCI_Interrupt;
	uint32_t		SMI_Command_Port;
	uint8_t			ACPI_Enable;
	uint8_t			ACPI_Disable;
	uint8_t			S4BIOS_Command;
	uint8_t			PState_Control;
	uint32_t		PM1A_Event_Block_Address;
	uint32_t		PM1B_Event_Block_Address;
	uint32_t		PM1A_Control_Block_Address;
	uint32_t		PM1B_Control_Block_Address;
	uint32_t		PM2_Control_Block_Address;
	uint32_t		PM_Timer_Block_Address;
	uint32_t		GPE0_Block_Address;
	uint32_t		GPE1_Block_Address;
	uint8_t			PM1_Event_Block_Length;
	uint8_t			PM1_Control_Block_Length;
	uint8_t			PM2_Control_Block_Length;
	uint8_t			PM_Timer_Block_Length;
	uint8_t			GPE0_Block_Length;
	uint8_t			GPE1_Block_Length;
	uint8_t			GPE1_Base_Offset;
	uint8_t			CST_Support;
	uint16_t		C2_Latency;
	uint16_t		C3_Latency;
	uint16_t		CPU_Cache_Size;
	uint16_t		Cache_Flush_Stride;
	uint8_t			Duty_Cycle_Offset;
	uint8_t			Duty_Cycle_Width;
	uint8_t			RTC_Day_Alarm_Index;
	uint8_t			RTC_Month_Alarm_Index;
	uint8_t			RTC_Century_Index;
	uint16_t		Boot_Flags;
	uint8_t			Reserved0;
/* Begin Asere */
	//Reset Fix
	uint32_t        Flags;
	// Reset Register
	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_FACS;
	uint64_t	    X_DSDT;
/* End Asere */
	/*We absolutely don't care about theese fields*/
	uint8_t		notimp2[96];
} __attribute__((packed));

struct acpi_2_facs
{
	char		Signature[4];
	uint32_t	Length;
	uint32_t        HWSignature;
	uint32_t        FWWakingVector32;
	uint32_t        GlobalLock;
	uint32_t        Flags;
	uint64_t        FWWakingVector64;
	uint8_t         Version;
	uint8_t         Reserved[31];
} __attribute__((packed));

#endif /* !__LIBSAIO_ACPI_H */