feat: Local/IO APIC, PS/2 keyboard & mouse

2026-02-17 12:44:31 +01:00
parent e2f059bf90
commit 641ec4681b
26 changed files with 1730 additions and 3 deletions
@@ -0,0 +1,41 @@
+/*
+    * Apic.hpp
+    * Local APIC (Advanced Programmable Interrupt Controller)
+    * Copyright (c) 2025 Daniel Hammer
+*/
+
+#pragma once
+#include <cstdint>
+
+namespace Hal {
+    namespace LocalApic {
+        // Local APIC register offsets
+        constexpr uint32_t REG_ID               = 0x020;
+        constexpr uint32_t REG_VERSION           = 0x030;
+        constexpr uint32_t REG_TPR               = 0x080;
+        constexpr uint32_t REG_EOI               = 0x0B0;
+        constexpr uint32_t REG_SPURIOUS          = 0x0F0;
+        constexpr uint32_t REG_ICR_LOW           = 0x300;
+        constexpr uint32_t REG_ICR_HIGH          = 0x310;
+        constexpr uint32_t REG_TIMER_LVT         = 0x320;
+        constexpr uint32_t REG_LINT0_LVT         = 0x350;
+        constexpr uint32_t REG_LINT1_LVT         = 0x360;
+        constexpr uint32_t REG_ERROR_LVT         = 0x370;
+        constexpr uint32_t REG_TIMER_INITIAL      = 0x380;
+        constexpr uint32_t REG_TIMER_CURRENT      = 0x390;
+        constexpr uint32_t REG_TIMER_DIVIDE       = 0x3E0;
+
+        // Spurious vector number
+        constexpr uint8_t SPURIOUS_VECTOR = 0xFF;
+
+        // MSR for APIC base
+        constexpr uint32_t MSR_APIC_BASE = 0x1B;
+
+        void Initialize(uint64_t apicBasePhys);
+        void SendEOI();
+        uint32_t GetId();
+
+        uint32_t ReadRegister(uint32_t reg);
+        void WriteRegister(uint32_t reg, uint32_t value);
+    };
+};