151 struct HciLayer::impl {  struct in bluetooth::hci::HciLayer
152   impl(hal::HciHal* hal, HciLayer& module) : hal_(hal), module_(module) {  in impl()  function
156   ~impl() {  in ~impl()
169   void drop(EventView event) {  in drop()
173   void on_outbound_acl_ready() {  in on_outbound_acl_ready()
181   void on_outbound_sco_ready() {  in on_outbound_sco_ready()
189   void on_outbound_iso_ready() {  in on_outbound_iso_ready()
198   void enqueue_command(unique_ptr<CommandBuilder> command,  in enqueue_command()
204   void on_command_status(EventView event) {  in on_command_status()
216   void on_command_complete(EventView event) {  in on_command_complete()
221   void handle_command_response(EventView event, std::string logging_id) {  in handle_command_response()
302   void on_hci_timeout(OpCode op_code) {  in on_hci_timeout()
348   void send_next_command() {  in send_next_command()
382   void register_event(EventCode event, ContextualCallback<void(EventView)> handler) {  in register_event()
395   void unregister_event(EventCode event) { event_handlers_.erase(event); }  in unregister_event()
397   void register_le_event(SubeventCode event, ContextualCallback<void(LeMetaEventView)> handler) {  in register_le_event()
403   void unregister_le_event(SubeventCode event) {  in unregister_le_event()
407   void register_vs_event(VseSubeventCode event,  in register_vs_event()
414   void unregister_vs_event(VseSubeventCode event) {  in unregister_vs_event()
418   void register_vs_event_default(ContextualCallback<void(VendorSpecificEventView)> handler) {  in register_vs_event_default()
422   void unregister_vs_event_default() { vs_event_default_handler_.reset(); }  in unregister_vs_event_default()
424   static void abort_after_root_inflammation(uint8_t vse_error) {  in abort_after_root_inflammation()
428   void handle_root_inflammation(uint8_t vse_error_reason) {  in handle_root_inflammation()
447   void on_hci_event(EventView event) {  in on_hci_event()
516   void on_hardware_error(EventView event) {  in on_hardware_error()
531   void on_le_meta_event(EventView event) {  in on_le_meta_event()
542   void on_vs_event(EventView event) {  in on_vs_event()
555   hal::HciHal* hal_;
556   HciLayer& module_;
559   std::list<CommandQueueEntry> command_queue_;
561   std::map<EventCode, ContextualCallback<void(EventView)>> event_handlers_;
562   std::map<SubeventCode, ContextualCallback<void(LeMetaEventView)>> le_event_handlers_;
563   std::map<VseSubeventCode, ContextualCallback<void(VendorSpecificEventView)>> vs_event_handlers_;
564   std::optional<ContextualCallback<void(VendorSpecificEventView)>> vs_event_default_handler_;
566   OpCode waiting_command_{OpCode::NONE};
567   uint8_t command_credits_{1};  // Send reset first
568   Alarm* hci_timeout_alarm_{nullptr};
569   Alarm* hci_abort_alarm_{nullptr};
572   BidiQueue<AclView, AclBuilder> acl_queue_{3 /* TODO: Set queue depth */};
573   os::EnqueueBuffer<AclView> incoming_acl_buffer_{acl_queue_.GetDownEnd()};
576   BidiQueue<ScoView, ScoBuilder> sco_queue_{3 /* TODO: Set queue depth */};
577   os::EnqueueBuffer<ScoView> incoming_sco_buffer_{sco_queue_.GetDownEnd()};
580   BidiQueue<IsoView, IsoBuilder> iso_queue_{3 /* TODO: Set queue depth */};
581   os::EnqueueBuffer<IsoView> incoming_iso_buffer_{iso_queue_.GetDownEnd()};