Merge "gd: Implement register/unregister scanner" (ec5800d2) · Commits · e / os / android_packages_modules_Bluetooth

system/gd/hci/le_scanning_manager.cc

+56 −0

Original line number	Diff line number	Diff line
		@@ -41,6 +41,11 @@ enum class ScanApiType {
		EXTENDED = 3,
		};

		struct Scanner {
		Uuid app_uuid;
		bool in_use;
		};

		struct LeScanningManager::impl : public bluetooth::hci::LeAddressManagerCallback {
		impl(Module* module) : module_(module), le_scanning_interface_(nullptr) {}

		@@ -65,6 +70,11 @@ struct LeScanningManager::impl : public bluetooth::hci::LeAddressManagerCallback
		} else {
		api_type_ = ScanApiType::LEGACY;
		}
		scanners_ = std::vector<Scanner>(kMaxAppNum + 1);
		for (size_t i = 0; i < scanners_.size(); i++) {
		scanners_[i].app_uuid = Uuid::kEmpty;
		scanners_[i].in_use = false;
		}
		configure_scan();
		}

		@@ -149,6 +159,43 @@ struct LeScanningManager::impl : public bluetooth::hci::LeAddressManagerCallback
		}
		}

		void register_scanner(const Uuid app_uuid) {
		for (uint8_t i = 1; i <= kMaxAppNum; i++) {
		if (scanners_[i].in_use && scanners_[i].app_uuid == app_uuid) {
		LOG_ERROR("Application already registered %s", app_uuid.ToString().c_str());
		scanning_callbacks_->OnScannerRegistered(app_uuid, 0x00, ScanningCallback::ScanningStatus::INTERNAL_ERROR);
		return;
		}
		}

		// valid value of scanner id : 1 ~ kMaxAppNum
		for (uint8_t i = 1; i <= kMaxAppNum; i++) {
		if (!scanners_[i].in_use) {
		scanners_[i].app_uuid = app_uuid;
		scanners_[i].in_use = true;
		scanning_callbacks_->OnScannerRegistered(app_uuid, i, ScanningCallback::ScanningStatus::SUCCESS);
		return;
		}
		}

		LOG_ERROR("Unable to register scanner, max client reached:%d", kMaxAppNum);
		scanning_callbacks_->OnScannerRegistered(app_uuid, 0x00, ScanningCallback::ScanningStatus::NO_RESOURCES);
		}

		void unregister_scanner(ScannerId scanner_id) {
		if (scanner_id <= 0 \|\| scanner_id > kMaxAppNum) {
		LOG_WARN("Invalid scanner id");
		return;
		}

		if (scanners_[scanner_id].in_use) {
		scanners_[scanner_id].in_use = false;
		scanners_[scanner_id].app_uuid = Uuid::kEmpty;
		} else {
		LOG_WARN("Unregister scanner with unused scanner id");
		}
		}

		void start_scan(LeScanningManagerCallbacks* le_scanning_manager_callbacks) {
		registered_callback_ = le_scanning_manager_callbacks;

		@@ -241,6 +288,7 @@ struct LeScanningManager::impl : public bluetooth::hci::LeAddressManagerCallback
		hci::LeAddressManager* le_address_manager_;
		bool address_manager_registered = false;
		ScanningCallback* scanning_callbacks_ = nullptr;
		std::vector<Scanner> scanners_;

		uint32_t interval_ms_{1000};
		uint16_t window_ms_{1000};
		@@ -303,6 +351,14 @@ std::string LeScanningManager::ToString() const {
		return "Le Scanning Manager";
		}

		void LeScanningManager::RegisterScanner(Uuid app_uuid) {
		CallOn(pimpl_.get(), &impl::register_scanner, app_uuid);
		}

		void LeScanningManager::Unregister(ScannerId scanner_id) {
		CallOn(pimpl_.get(), &impl::unregister_scanner, scanner_id);
		}

		void LeScanningManager::StartScan(LeScanningManagerCallbacks* callbacks) {
		GetHandler()->Post(common::Bind(&impl::start_scan, common::Unretained(pimpl_.get()), callbacks));
		}

system/gd/hci/le_scanning_manager.h

+15 −1

Original line number	Diff line number	Diff line
		@@ -34,10 +34,19 @@ class LeScanningManagerCallbacks {
		virtual os::Handler* Handler() = 0;
		};

		using ScannerId = uint8_t;

		class ScanningCallback {
		public:
		enum ScanningStatus {
		SUCCESS,
		NO_RESOURCES = 0x80,
		INTERNAL_ERROR = 0x85,
		};

		virtual ~ScanningCallback() = default;
		virtual void OnScannerRegistered(const bluetooth::hci::Uuid app_uuid, uint8_t scanner_id, uint8_t status) = 0;
		virtual void OnScannerRegistered(
		const bluetooth::hci::Uuid app_uuid, ScannerId scanner_id, ScanningStatus status) = 0;
		virtual void OnScanResult(
		uint16_t event_type,
		uint8_t addr_type,
		@@ -56,8 +65,13 @@ class ScanningCallback {

		class LeScanningManager : public bluetooth::Module {
		public:
		static constexpr uint8_t kMaxAppNum = 32;
		LeScanningManager();

		void RegisterScanner(const Uuid app_uuid);

		void Unregister(ScannerId scanner_id);

		void StartScan(LeScanningManagerCallbacks* callbacks);

		void StopScan(common::Callback<void()> on_stopped);

system/main/shim/le_scanning_manager.cc

+15 −2

Original line number	Diff line number	Diff line
		@@ -41,10 +41,15 @@ class BleScannerInterfaceImpl : public BleScannerInterface,
		/** Registers a scanner with the stack */
		void RegisterScanner(const bluetooth::Uuid& uuid, RegisterCallback) {
		LOG(INFO) << __func__ << " in shim layer";
		auto app_uuid = bluetooth::hci::Uuid::From128BitBE(uuid.To128BitBE());
		bluetooth::shim::GetScanning()->RegisterScanner(app_uuid);
		}

		/** Unregister a scanner from the stack */
		void Unregister(int scanner_id) { LOG(INFO) << __func__ << " in shim layer"; }
		void Unregister(int scanner_id) {
		LOG(INFO) << __func__ << " in shim layer, scanner_id:" << scanner_id;
		bluetooth::shim::GetScanning()->Unregister(scanner_id);
		}

		/** Start or stop LE device scanning */
		void Scan(bool start) { LOG(INFO) << __func__ << " in shim layer"; }
		@@ -120,7 +125,15 @@ class BleScannerInterfaceImpl : public BleScannerInterface,
		}

		void OnScannerRegistered(const bluetooth::hci::Uuid app_uuid,
		uint8_t scanner_id, uint8_t status){};
		bluetooth::hci::ScannerId scanner_id,
		ScanningStatus status) {
		auto uuid = bluetooth::Uuid::From128BitBE(app_uuid.To128BitBE());
		do_in_jni_thread(FROM_HERE,
		base::Bind(&ScanningCallbacks::OnScannerRegistered,
		base::Unretained(scanning_callbacks_), uuid,
		scanner_id, status));
		};

		void OnScanResult(uint16_t event_type, uint8_t addr_type,
		bluetooth::hci::Address* bda, uint8_t primary_phy,
		uint8_t secondary_phy, uint8_t advertising_sid,