/* SPDX-License-Identifier: GPL-2.0-only */
/* This file is part of the coreboot project. */

/* Intel 82801Ix support */

Scope(\)
{
	// IO-Trap at 0x800. This is the ACPI->SMI communication interface.

	OperationRegion(IO_T, SystemIO, 0x800, 0x10)
	Field(IO_T, ByteAcc, NoLock, Preserve)
	{
		Offset(0x8),
		TRP0, 8		// IO-Trap at 0x808
	}

	// ICH9 Power Management Registers, located at PMBASE (0x1f.0 0x40.l)
	OperationRegion(PMIO, SystemIO, DEFAULT_PMBASE, 0x80)
	Field(PMIO, ByteAcc, NoLock, Preserve)
	{
		Offset(0x11),
		THRO, 1,	// force thermal throttling
		Offset(0x42),	// General Purpose Control
		, 1,		// skip 1 bit
		GPEC, 1,	// TCO status
		Offset(0x64),
		, 9,		// skip 9 more bits
		SCIS, 1		// TCO DMI status
	}

	// FIXME: purposes of the GPIOs (comments) are probably wrong
	// ICH9 GPIO IO mapped registers (0x1f.0 reg 0x48.l)
	OperationRegion(GPIO, SystemIO, DEFAULT_GPIOBASE, 0x3c)
	Field(GPIO, ByteAcc, NoLock, Preserve)
	{
		Offset(0x00),	// GPIO Use Select
		GU00, 8,
		GU01, 8,
		GU02, 8,
		GU03, 8,
		Offset(0x04),	// GPIO IO Select
		GIO0, 8,
		GIO1, 8,
		GIO2, 8,
		GIO3, 8,
		Offset(0x0c),	// GPIO Level
		GP00, 1,
		GP01, 1,
		GP02, 1,
		GP03, 1,
		GP04, 1,
		GP05, 1,
		GP06, 1,
		GP07, 1,
		GP08, 1,
		GP09, 1,
		GP10, 1,
		GP11, 1,
		GP12, 1,
		GP13, 1,
		GP14, 1,
		GP15, 1,
		GP16, 1,
		GP17, 1,
		GP18, 1,
		GP19, 1,
		GP20, 1,
		GP21, 1,
		GP22, 1,
		GP23, 1,
		GP24, 1,
		GP25, 1,
		GP26, 1,
		GP27, 1,
		GP28, 1,
		GP29, 1,
		GP30, 1,
		GP31, 1,
		Offset(0x18),	// GPIO Blink
		GB00, 8,
		GB01, 8,
		GB02, 8,
		GB03, 8,
		Offset(0x2c),	// GPIO Invert
		GIV0, 8,
		GIV1, 8,
		GIV2, 8,
		GIV3, 8,
		Offset(0x30),	// GPIO Use Select 2
		GU04, 8,
		GU05, 8,
		GU06, 8,
		GU07, 8,
		Offset(0x34),	// GPIO IO Select 2
		GIO4, 8,
		GIO5, 8,
		GIO6, 8,
		GIO7, 8,
		Offset(0x38),	// GPIO Level 2
		GP32, 1,
		GP33, 1,
		GP34, 1,
		GP35, 1,
		GP36, 1,
		GP37, 1,
		GP38, 1,
		GP39, 1,
		GL05, 8,
		GL06, 8,
		GL07, 8
	}


	// ICH9 Root Complex Register Block. Memory Mapped through RCBA)
	OperationRegion(RCRB, SystemMemory, DEFAULT_RCBA, 0x4000)
	Field(RCRB, DWordAcc, Lock, Preserve)
	{
		Offset(0x0000), // Backbone
		Offset(0x1000), // Chipset
		Offset(0x3000), // Legacy Configuration Registers
		Offset(0x3404), // High Performance Timer Configuration
		HPAS, 2,	// Address Select
		, 5,
		HPTE, 1,	// Address Enable
		Offset(0x3418), // FD (Function Disable)
		, 2,		// Reserved
		SA1D, 1,	// SATA disable
		SMBD, 1,	// SMBUS disable
		HDAD, 1,	// Azalia disable
		, 2,		// Reserved
		US6D, 1,	// UHCI #6 disable
		US1D, 1,	// UHCI #1 disable
		US2D, 1,	// UHCI #2 disable
		US3D, 1,	// UHCI #3 disable
		US4D, 1,	// UHCI #4 disable
		US5D, 1,	// UHCI #5 disable
		EH2D, 1,	// EHCI disable
		LPBD, 1,	// LPC bridge disable
		EH1D, 1,	// EHCI disable
		Offset(0x341a), // FD Root Ports
		RP1D, 1,	// Root Port 1 disable
		RP2D, 1,	// Root Port 2 disable
		RP3D, 1,	// Root Port 3 disable
		RP4D, 1,	// Root Port 4 disable
		RP5D, 1,	// Root Port 5 disable
		RP6D, 1,	// Root Port 6 disable
		, 2,		// Reserved
		THRD, 1,	// Thermal Throttle disable
		SA2D, 1,	// SATA disable
	}

}

// 0:1b.0 High Definition Audio (Azalia)
#include "audio.asl"

// PCI Express Ports
#include <southbridge/intel/common/acpi/pcie.asl>

// USB
#include "usb.asl"

// PCI Bridge
#include "pci.asl"

// LPC Bridge
#include "lpc.asl"

// SATA
#include "sata.asl"

// SMBus
#include <southbridge/intel/common/acpi/smbus.asl>

Method (_OSC, 4)
{
	/* Check for proper GUID */
	If (LEqual (Arg0, ToUUID("33DB4D5B-1FF7-401C-9657-7441C03DD766")))
	{
		/* Let OS control everything */
		Return (Arg3)
	}
	Else
	{
		/* Unrecognized UUID */
		CreateDWordField (Arg3, 0, CDW1)
		Or (CDW1, 4, CDW1)
		Return (Arg3)
	}
}