2 files changed, 67 insertions, 0 deletions
diff --git a/arch/x86_64/src/devices/init.cpp b/arch/x86_64/src/devices/init.cpp
new file mode 100644
index 0000000..6cba986
--- /dev/null
+++ b/arch/x86_64/src/devices/init.cpp
@@ -0,0 +1,39 @@
+#include "arch/devices/init.hpp"
+
+#include "kapi/devices.hpp"
+
+#include "arch/bus/isa.hpp"
+#include "arch/devices/legacy_pit.hpp"
+
+#include <kstd/memory>
+#include <kstd/print>
+
+#include <cstdint>
+#include <utility>
+
+namespace arch::devices
+{
+
+  namespace
+  {
+    constexpr auto pit_frequency_in_hz = std::uint32_t{100u};
+  }
+
+  auto init_acpi_devices() -> void {}
+
+  auto init_legacy_devices() -> void
+  {
+    kstd::println("[x86_64:DEV] Initializing ISA bus...");
+
+    auto isa_major_number = kapi::devices::allocate_major_number();
+    auto isa_bus = kstd::make_unique<arch::bus::isa>(isa_major_number);
+
+    auto pit_major_number = kapi::devices::allocate_major_number();
+    auto pit = kstd::make_unique<arch::devices::legacy_pit>(pit_major_number, pit_frequency_in_hz);
+    isa_bus->add_child(std::move(pit));
+
+    auto & root_bus = kapi::devices::get_root_bus();
+    root_bus.add_child(std::move(isa_bus));
+  }
+
+}  // namespace arch::devices
diff --git a/arch/x86_64/src/devices/local_apic.cpp b/arch/x86_64/src/devices/local_apic.cpp
new file mode 100644
index 0000000..beb75ef
--- /dev/null
+++ b/arch/x86_64/src/devices/local_apic.cpp
@@ -0,0 +1,28 @@
+#include "arch/devices/local_apic.hpp"
+
+#include "kapi/devices.hpp"
+#include "kapi/memory.hpp"
+
+#include <kstd/print>
+
+#include <cstddef>
+#include <cstdint>
+
+namespace arch::devices
+{
+
+  local_apic::local_apic(std::size_t major, std::size_t minor, std::uint64_t hardware_id,
+                         kapi::memory::physical_address base)
+      : kapi::devices::device{major, minor, "lapic"}
+      , m_hardware_id{hardware_id}
+      , m_base{base}
+  {}
+
+  auto local_apic::init() -> bool
+  {
+    kstd::println("[x86_64:DEV] Initializing local APIC on core {}", m_hardware_id);
+
+    return true;
+  }
+
+}  // namespace arch::devices
+\ No newline at end of file