feat(kernel): Add USB devicde and keyboard/mouse support

2026-02-19 23:06:18 +01:00
parent cae7dd352e
commit d7b17d9a61
21 changed files with 2377 additions and 24 deletions
@@ -0,0 +1,49 @@
+/*
+    * HidMouse.cpp
+    * USB HID Boot Protocol Mouse driver
+    * Copyright (c) 2025 Daniel Hammer
+*/
+
+#include "HidMouse.hpp"
+#include <Drivers/PS2/Mouse.hpp>
+#include <Terminal/Terminal.hpp>
+#include <CppLib/Stream.hpp>
+
+using namespace Kt;
+
+namespace Drivers::USB::HidMouse {
+
+    // -------------------------------------------------------------------------
+    // State
+    // -------------------------------------------------------------------------
+
+    static uint8_t g_SlotId = 0;
+
+    // -------------------------------------------------------------------------
+    // Public API
+    // -------------------------------------------------------------------------
+
+    void RegisterDevice(uint8_t slotId) {
+        g_SlotId = slotId;
+
+        KernelLogStream(OK, "USB/Mouse") << "Registered HID mouse on slot " << (uint64_t)slotId;
+    }
+
+    void ProcessReport(const uint8_t* data, uint16_t length) {
+        if (length < 3) return;
+
+        // Boot protocol mouse report:
+        //   Byte 0: Buttons (bit 0 = left, bit 1 = right, bit 2 = middle)
+        //   Byte 1: X displacement (signed int8_t)
+        //   Byte 2: Y displacement (signed int8_t)
+        //   Byte 3: Scroll wheel (signed int8_t, optional)
+
+        uint8_t buttons = data[0] & 0x07;
+        int8_t deltaX   = (int8_t)data[1];
+        int8_t deltaY   = (int8_t)data[2];
+        int8_t scroll   = (length >= 4) ? (int8_t)data[3] : 0;
+
+        Drivers::PS2::Mouse::InjectMouseReport(buttons, deltaX, deltaY, scroll);
+    }
+
+}