1 files changed, 122 insertions, 0 deletions
diff --git a/dev/kernel/HALKit/AMD64/HalACPIFactoryInterface.cc b/dev/kernel/HALKit/AMD64/HalACPIFactoryInterface.cc
new file mode 100644
index 00000000..f327dc3f
--- /dev/null
+++ b/dev/kernel/HALKit/AMD64/HalACPIFactoryInterface.cc
@@ -0,0 +1,122 @@
+/* -------------------------------------------
+
+	Copyright (C) 2024-2025, Amlal EL Mahrouss, all rights reserved.
+
+------------------------------------------- */
+
+#include <modules/ACPI/ACPIFactoryInterface.h>
+#include <HALKit/AMD64/Processor.h>
+#include <NewKit/KString.h>
+#include <ArchKit/ArchKit.h>
+#include <KernelKit/MemoryMgr.h>
+
+namespace NeOS
+{
+	namespace Detail
+	{
+		struct FADT final : public SDT
+		{
+			UInt32 FirmwareCtrl;
+			UInt32 Dsdt;
+
+			// field used in ACPI 1.0; no longer in use, for compatibility only
+			UInt8 Reserved;
+
+			UInt8  PreferredPowerManagementProfile;
+			UInt16 SCI_Interrupt;
+			UInt32 SMI_CommandPort;
+			UInt8  AcpiEnable;
+			UInt8  AcpiDisable;
+			UInt8  S4BIOS_REQ;
+			UInt8  PSTATE_Control;
+			UInt32 PM1aEventBlock;
+			UInt32 PM1bEventBlock;
+			UInt32 PM1aControlBlock;
+			UInt32 PM1bControlBlock;
+			UInt32 PM2ControlBlock;
+			UInt32 PMTimerBlock;
+			UInt32 GPE0Block;
+			UInt32 GPE1Block;
+			UInt8  PM1EventLength;
+			UInt8  PM1ControlLength;
+			UInt8  PM2ControlLength;
+			UInt8  PMTimerLength;
+			UInt8  GPE0Length;
+			UInt8  GPE1Length;
+			UInt8  GPE1Base;
+			UInt8  CStateControl;
+			UInt16 WorstC2Latency;
+			UInt16 WorstC3Latency;
+			UInt16 FlushSize;
+			UInt16 FlushStride;
+			UInt8  DutyOffset;
+			UInt8  DutyWidth;
+			UInt8  DayAlarm;
+			UInt8  MonthAlarm;
+			UInt8  Century;
+
+			// reserved in ACPI 1.0; used since ACPI 2.0+
+			UInt16 BootArchitecturkMMFlags;
+
+			UInt8  Reserved2;
+			UInt32 Flags;
+
+			// 12 byte structure; see below for details
+			ACPI_ADDRESS ResetReg;
+
+			UInt8 ResetValue;
+			UInt8 Reserved3[3];
+
+			// 64bit pointers - Available on ACPI 2.0+
+			UInt64 X_FirmwareControl;
+			UInt64 X_Dsdt;
+
+			ACPI_ADDRESS X_PM1aEventBlock;
+			ACPI_ADDRESS X_PM1bEventBlock;
+			ACPI_ADDRESS X_PM1aControlBlock;
+			ACPI_ADDRESS X_PM1bControlBlock;
+			ACPI_ADDRESS X_PM2ControlBlock;
+			ACPI_ADDRESS X_PMTimerBlock;
+			ACPI_ADDRESS X_GPE0Block;
+			ACPI_ADDRESS X_GPE1Block;
+		};
+	} // namespace Detail
+
+	ACPIFactoryInterface::ACPIFactoryInterface(VoidPtr rsp_ptr)
+		: fRsdp(rsp_ptr), fEntries(0)
+	{
+	}
+
+	Bool ACPIFactoryInterface::Shutdown()
+	{
+	failed_to_shutdown:
+		return NO;
+	}
+
+	/// @brief Reboot machine in either ACPI or by triple faulting.
+	/// @return nothing it's a reboot.
+	Void ACPIFactoryInterface::Reboot()
+	{
+	failed_to_reboot:
+		asm volatile(".intel_syntax noprefix; "
+					 "rt_reset_hardware:; "
+					 "cli; "
+					 "wait_gate1: ; "
+					 "in al,0x64 ; "
+					 "and al,2 ; "
+					 "jnz wait_gate1 ; "
+					 "mov al,0x0D1 ; "
+					 "out 0x64,al ; "
+					 "wait_gate2: ; "
+					 "in al,0x64 ; "
+					 "and al,2 ; "
+					 "jnz wait_gate2 ; "
+					 "mov al,0x0FE ; "
+					 "out 0x60,al ; "
+					 "xor rax,rax ; "
+					 "lidt [rax] ; "
+					 "reset_wait: ; "
+					 "jmp reset_wait ; "
+					 ".att_syntax; ");
+	}
+} // namespace NeOS