[Voyageurs] Send AddressDevice Command to move port to 'Addressed' State.

sys/voyageurs/xhci/device_slot.h

@@ -0,0 +1,37 @@
+#pragma once
+
+#include <glacier/memory/unique_ptr.h>
+#include <mammoth/util/memory_region.h>
+
+#include "xhci/trb_ring.h"
+#include "xhci/xhci.h"
+
+class DeviceSlot {
+ public:
+  DeviceSlot() = default;
+  DeviceSlot(const DeviceSlot&) = delete;
+  DeviceSlot(DeviceSlot&&) = delete;
+
+  void EnableAndInitializeDataStructures(uint8_t slot_index_,
+                                         uint64_t* output_context);
+
+  XhciTrb CreateAddressDeviceCommand(uint8_t root_port, uint32_t route_string,
+                                     uint16_t max_packet_size);
+
+  uint8_t State();
+
+ private:
+  bool enabled_ = false;
+
+  uint8_t slot_index_ = 0;
+
+  uint64_t context_phys_ = 0;
+  mmth::OwnedMemoryRegion context_memory_;
+
+  static constexpr uint64_t kInputSlotContextOffset = 0x400;
+
+  XhciDeviceContext* device_context_;
+  XhciInputContext* input_context_;
+
+  glcr::UniquePtr<TrbRingWriter> control_endpoint_transfer_trb_;
+};