1 // Copyright 2023 The Pigweed Authors 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); you may not 4 // use this file except in compliance with the License. You may obtain a copy of 5 // the License at 6 // 7 // https://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, WITHOUT 11 // WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the 12 // License for the specific language governing permissions and limitations under 13 // the License. 14 15 #pragma once 16 #include <cstdint> 17 18 #include "pw_bluetooth_sapphire/internal/host/hci-spec/constants.h" 19 #include "pw_bluetooth_sapphire/internal/host/transport/data_buffer_info.h" 20 21 namespace bt::gap { 22 23 // Stores Bluetooth Low Energy settings and state information. 24 class LowEnergyState final { 25 public: 26 // Returns true if |feature_bit| is set as supported in the local LE features 27 // list. IsFeatureSupported(hci_spec::LESupportedFeature feature_bit)28 inline bool IsFeatureSupported( 29 hci_spec::LESupportedFeature feature_bit) const { 30 return supported_features_ & static_cast<uint64_t>(feature_bit); 31 } 32 supported_features()33 uint64_t supported_features() const { return supported_features_; } 34 35 // Returns the LE ACL data buffer capacity. acl_data_buffer_info()36 const hci::DataBufferInfo& acl_data_buffer_info() const { 37 return acl_data_buffer_info_; 38 } 39 40 // Returns the ISO data buffer capacity. iso_data_buffer_info()41 const hci::DataBufferInfo& iso_data_buffer_info() const { 42 return iso_data_buffer_info_; 43 } 44 max_advertising_data_length()45 uint16_t max_advertising_data_length() const { 46 return max_advertising_data_length_; 47 } 48 49 private: 50 friend class Adapter; 51 friend class AdapterImpl; 52 53 // Storage capacity information about the controller's internal ACL data 54 // buffers. 55 hci::DataBufferInfo acl_data_buffer_info_; 56 57 // Storage capacity information about the controller's internal ISO data 58 // buffers. 59 hci::DataBufferInfo iso_data_buffer_info_; 60 61 // Local supported LE Features reported by the controller. 62 uint64_t supported_features_ = 0; 63 64 // Local supported LE states reported by the controller. 65 uint64_t supported_states_ = 0; 66 67 // Maximum length of data supported by the Controller for use as advertisement 68 // data or scan response data in an advertising event or as periodic 69 // advertisement data 70 uint16_t max_advertising_data_length_ = 0; 71 }; 72 73 } // namespace bt::gap 74