| // Copyright 2016 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include <iterator> |
| #include <utility> |
| |
| #include "base/logging.h" |
| #include "base/memory/ptr_util.h" |
| #include "dbus/property.h" |
| #include "device/bluetooth/bluez/bluetooth_adapter_bluez.h" |
| #include "device/bluetooth/bluez/bluetooth_device_bluez.h" |
| #include "device/bluetooth/bluez/bluetooth_gatt_characteristic_bluez.h" |
| #include "device/bluetooth/bluez/bluetooth_remote_gatt_characteristic_bluez.h" |
| #include "device/bluetooth/bluez/bluetooth_remote_gatt_descriptor_bluez.h" |
| #include "device/bluetooth/bluez/bluetooth_remote_gatt_service_bluez.h" |
| #include "device/bluetooth/dbus/bluez_dbus_manager.h" |
| |
| namespace bluez { |
| |
| BluetoothRemoteGattServiceBlueZ::BluetoothRemoteGattServiceBlueZ( |
| BluetoothAdapterBlueZ* adapter, |
| BluetoothDeviceBlueZ* device, |
| const dbus::ObjectPath& object_path) |
| : BluetoothGattServiceBlueZ(adapter, object_path), |
| device_(device), |
| weak_ptr_factory_(this) { |
| VLOG(1) << "Creating remote GATT service with identifier: " |
| << object_path.value(); |
| DCHECK(GetAdapter()); |
| |
| bluez::BluezDBusManager::Get()->GetBluetoothGattServiceClient()->AddObserver( |
| this); |
| bluez::BluezDBusManager::Get() |
| ->GetBluetoothGattCharacteristicClient() |
| ->AddObserver(this); |
| |
| // Add all known GATT characteristics. |
| const std::vector<dbus::ObjectPath>& gatt_chars = |
| bluez::BluezDBusManager::Get() |
| ->GetBluetoothGattCharacteristicClient() |
| ->GetCharacteristics(); |
| for (auto iter = gatt_chars.begin(); iter != gatt_chars.end(); ++iter) |
| GattCharacteristicAdded(*iter); |
| } |
| |
| BluetoothRemoteGattServiceBlueZ::~BluetoothRemoteGattServiceBlueZ() { |
| bluez::BluezDBusManager::Get() |
| ->GetBluetoothGattServiceClient() |
| ->RemoveObserver(this); |
| bluez::BluezDBusManager::Get() |
| ->GetBluetoothGattCharacteristicClient() |
| ->RemoveObserver(this); |
| |
| // Clean up all the characteristics. Move the characteristics list here and |
| // clear the original so that when we send GattCharacteristicRemoved(), |
| // GetCharacteristics() returns no characteristics. |
| CharacteristicMap characteristics = std::move(characteristics_); |
| characteristics_.clear(); |
| |
| for (const auto& characteristic : characteristics) { |
| DCHECK(GetAdapter()); |
| GetAdapter()->NotifyGattCharacteristicRemoved(characteristic.second.get()); |
| } |
| } |
| |
| device::BluetoothUUID BluetoothRemoteGattServiceBlueZ::GetUUID() const { |
| bluez::BluetoothGattServiceClient::Properties* properties = |
| bluez::BluezDBusManager::Get() |
| ->GetBluetoothGattServiceClient() |
| ->GetProperties(object_path()); |
| DCHECK(properties); |
| return device::BluetoothUUID(properties->uuid.value()); |
| } |
| |
| bool BluetoothRemoteGattServiceBlueZ::IsPrimary() const { |
| bluez::BluetoothGattServiceClient::Properties* properties = |
| bluez::BluezDBusManager::Get() |
| ->GetBluetoothGattServiceClient() |
| ->GetProperties(object_path()); |
| DCHECK(properties); |
| return properties->primary.value(); |
| } |
| |
| device::BluetoothDevice* BluetoothRemoteGattServiceBlueZ::GetDevice() const { |
| return device_; |
| } |
| |
| std::vector<device::BluetoothRemoteGattService*> |
| BluetoothRemoteGattServiceBlueZ::GetIncludedServices() const { |
| // TODO(armansito): Return the actual included services here. |
| return std::vector<device::BluetoothRemoteGattService*>(); |
| } |
| |
| void BluetoothRemoteGattServiceBlueZ::NotifyServiceChanged() { |
| // Don't send service changed unless we know that all characteristics have |
| // already been discovered. This is to prevent spammy events before sending |
| // out the first Gatt |
| if (!device_->IsGattServicesDiscoveryComplete()) |
| return; |
| |
| DCHECK(GetAdapter()); |
| GetAdapter()->NotifyGattServiceChanged(this); |
| } |
| |
| void BluetoothRemoteGattServiceBlueZ::NotifyDescriptorAddedOrRemoved( |
| BluetoothRemoteGattCharacteristicBlueZ* characteristic, |
| BluetoothRemoteGattDescriptorBlueZ* descriptor, |
| bool added) { |
| DCHECK(characteristic->GetService() == this); |
| DCHECK(descriptor->GetCharacteristic() == characteristic); |
| DCHECK(GetAdapter()); |
| |
| if (added) { |
| GetAdapter()->NotifyGattDescriptorAdded(descriptor); |
| return; |
| } |
| |
| GetAdapter()->NotifyGattDescriptorRemoved(descriptor); |
| } |
| |
| void BluetoothRemoteGattServiceBlueZ::NotifyDescriptorValueChanged( |
| BluetoothRemoteGattCharacteristicBlueZ* characteristic, |
| BluetoothRemoteGattDescriptorBlueZ* descriptor, |
| const std::vector<uint8_t>& value) { |
| DCHECK(characteristic->GetService() == this); |
| DCHECK(descriptor->GetCharacteristic() == characteristic); |
| DCHECK(GetAdapter()); |
| GetAdapter()->NotifyGattDescriptorValueChanged(descriptor, value); |
| } |
| |
| void BluetoothRemoteGattServiceBlueZ::GattServicePropertyChanged( |
| const dbus::ObjectPath& object_path, |
| const std::string& property_name) { |
| if (object_path != this->object_path()) |
| return; |
| |
| VLOG(1) << "Service property changed: \"" << property_name << "\", " |
| << object_path.value(); |
| bluez::BluetoothGattServiceClient::Properties* properties = |
| bluez::BluezDBusManager::Get() |
| ->GetBluetoothGattServiceClient() |
| ->GetProperties(object_path); |
| DCHECK(properties); |
| |
| NotifyServiceChanged(); |
| } |
| |
| void BluetoothRemoteGattServiceBlueZ::GattCharacteristicAdded( |
| const dbus::ObjectPath& object_path) { |
| if (characteristics_.find(object_path.value()) != characteristics_.end()) { |
| VLOG(1) << "Remote GATT characteristic already exists: " |
| << object_path.value(); |
| return; |
| } |
| |
| bluez::BluetoothGattCharacteristicClient::Properties* properties = |
| bluez::BluezDBusManager::Get() |
| ->GetBluetoothGattCharacteristicClient() |
| ->GetProperties(object_path); |
| DCHECK(properties); |
| if (properties->service.value() != this->object_path()) { |
| VLOG(2) << "Remote GATT characteristic does not belong to this service."; |
| return; |
| } |
| |
| VLOG(1) << "Adding new remote GATT characteristic for GATT service: " |
| << GetIdentifier() << ", UUID: " << GetUUID().canonical_value(); |
| |
| // NOTE: Can't use std::make_unique due to private constructor. |
| BluetoothRemoteGattCharacteristicBlueZ* characteristic = |
| new BluetoothRemoteGattCharacteristicBlueZ(this, object_path); |
| AddCharacteristic(base::WrapUnique(characteristic)); |
| DCHECK(characteristic->GetIdentifier() == object_path.value()); |
| DCHECK(characteristic->GetUUID().IsValid()); |
| |
| DCHECK(GetAdapter()); |
| GetAdapter()->NotifyGattCharacteristicAdded(characteristic); |
| } |
| |
| void BluetoothRemoteGattServiceBlueZ::GattCharacteristicRemoved( |
| const dbus::ObjectPath& object_path) { |
| auto iter = characteristics_.find(object_path.value()); |
| if (iter == characteristics_.end()) { |
| VLOG(2) << "Unknown GATT characteristic removed: " << object_path.value(); |
| return; |
| } |
| |
| VLOG(1) << "Removing remote GATT characteristic from service: " |
| << GetIdentifier() << ", UUID: " << GetUUID().canonical_value(); |
| |
| auto characteristic = std::move(iter->second); |
| DCHECK( |
| static_cast<BluetoothRemoteGattCharacteristicBlueZ*>(characteristic.get()) |
| ->object_path() == object_path); |
| characteristics_.erase(iter); |
| |
| DCHECK(GetAdapter()); |
| GetAdapter()->NotifyGattCharacteristicRemoved(characteristic.get()); |
| } |
| |
| void BluetoothRemoteGattServiceBlueZ::GattCharacteristicPropertyChanged( |
| const dbus::ObjectPath& object_path, |
| const std::string& property_name) { |
| auto* characteristic_bluez = |
| static_cast<BluetoothRemoteGattCharacteristicBlueZ*>( |
| GetCharacteristic(object_path.value())); |
| |
| if (!characteristic_bluez) { |
| VLOG(3) << "Properties of unknown characteristic changed"; |
| return; |
| } |
| |
| // We may receive a property changed event in certain cases, e.g. when the |
| // characteristic "Flags" property has been updated with values from the |
| // "Characteristic Extended Properties" descriptor. In this case, kick off |
| // a service changed observer event to let observers refresh the |
| // characteristics. |
| bluez::BluetoothGattCharacteristicClient::Properties* properties = |
| bluez::BluezDBusManager::Get() |
| ->GetBluetoothGattCharacteristicClient() |
| ->GetProperties(object_path); |
| |
| DCHECK(properties); |
| DCHECK(GetAdapter()); |
| |
| if (property_name == properties->flags.name()) { |
| NotifyServiceChanged(); |
| } else if (property_name == properties->value.name()) { |
| DCHECK_GE( |
| characteristic_bluez->num_of_characteristic_value_read_in_progress_, 0); |
| if (characteristic_bluez->num_of_characteristic_value_read_in_progress_ > |
| 0) { |
| --characteristic_bluez->num_of_characteristic_value_read_in_progress_; |
| } else { |
| GetAdapter()->NotifyGattCharacteristicValueChanged( |
| characteristic_bluez, properties->value.value()); |
| } |
| } |
| } |
| |
| } // namespace bluez |