ADD: Open version, with important changes kept out.

Signed-off-by: Amlal <amlal.elmahrouss@icloud.com>

1 files changed, 39 insertions, 0 deletions

diff --git a/dev/Kernel/HALKit/AMD64/HalAPICController.cc b/dev/Kernel/HALKit/AMD64/HalAPICController.cc
new file mode 100644
index 00000000..e4e35790
--- /dev/null
+++ b/dev/Kernel/HALKit/AMD64/HalAPICController.cc
@@ -0,0 +1,39 @@
+/* -------------------------------------------
+
+	Copyright (C) 2024, Amlal EL Mahrouss, all rights reserved.
+
+------------------------------------------- */
+
+#include <Mod/ACPI/ACPIFactoryInterface.h>
+#include <HALKit/AMD64/Processor.h>
+
+#define cIOAPICRegVal (4)
+#define cIOAPICRegReg (0)
+
+namespace Kernel::HAL
+{
+	/// @brief Read from APIC controller.
+	/// @param reg register.
+	UInt32 APICController::Read(UInt32 reg) noexcept
+	{
+		MUST_PASS(this->fApic);
+
+		UInt32 volatile* io_apic = (UInt32 volatile*)this->fApic;
+		io_apic[cIOAPICRegReg]	 = (reg & 0xFF);
+
+		return io_apic[cIOAPICRegVal];
+	}
+
+	/// @brief Write to APIC controller.
+	/// @param reg register.
+	/// @param value value.
+	Void APICController::Write(UInt32 reg, UInt32 value) noexcept
+	{
+		MUST_PASS(this->fApic);
+
+		UInt32 volatile* io_apic = (UInt32 volatile*)this->fApic;
+
+		io_apic[cIOAPICRegReg] = (reg & 0xFF);
+		io_apic[cIOAPICRegVal] = value;
+	}
+} // namespace Kernel::HAL