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/*
* Copyright 2019 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#pragma once
#include <chrono>
#include <map>
#include "address.h"
#include "class_of_device.h"
#include "common/bidi_queue.h"
#include "common/callback.h"
#include "common/contextual_callback.h"
#include "hal/hci_hal.h"
#include "hci/acl_connection_interface.h"
#include "hci/hci_packets.h"
#include "hci/le_acl_connection_interface.h"
#include "hci/le_advertising_interface.h"
#include "hci/le_iso_interface.h"
#include "hci/le_scanning_interface.h"
#include "hci/le_security_interface.h"
#include "hci/security_interface.h"
#include "module.h"
#include "os/utils.h"
namespace bluetooth {
namespace hci {
class HciLayer : public Module, public CommandInterface<CommandBuilder> {
// LINT.IfChange
public:
HciLayer();
HciLayer(const HciLayer&) = delete;
HciLayer& operator=(const HciLayer&) = delete;
virtual ~HciLayer();
void EnqueueCommand(
std::unique_ptr<CommandBuilder> command,
common::ContextualOnceCallback<void(CommandCompleteView)> on_complete) override;
void EnqueueCommand(
std::unique_ptr<CommandBuilder> command,
common::ContextualOnceCallback<void(CommandStatusView)> on_status) override;
virtual common::BidiQueueEnd<AclBuilder, AclView>* GetAclQueueEnd();
virtual common::BidiQueueEnd<ScoBuilder, ScoView>* GetScoQueueEnd();
virtual common::BidiQueueEnd<IsoBuilder, IsoView>* GetIsoQueueEnd();
virtual void RegisterEventHandler(EventCode event_code, common::ContextualCallback<void(EventView)> event_handler);
virtual void UnregisterEventHandler(EventCode event_code);
virtual void RegisterLeEventHandler(SubeventCode subevent_code,
common::ContextualCallback<void(LeMetaEventView)> event_handler);
virtual void UnregisterLeEventHandler(SubeventCode subevent_code);
virtual SecurityInterface* GetSecurityInterface(common::ContextualCallback<void(EventView)> event_handler);
virtual LeSecurityInterface* GetLeSecurityInterface(common::ContextualCallback<void(LeMetaEventView)> event_handler);
virtual AclConnectionInterface* GetAclConnectionInterface(
common::ContextualCallback<void(EventView)> event_handler,
common::ContextualCallback<void(uint16_t, hci::ErrorCode)> on_disconnect,
common::ContextualCallback<void(hci::ErrorCode, uint16_t, uint8_t, uint16_t, uint16_t)>
on_read_remote_version_complete);
virtual void PutAclConnectionInterface();
virtual LeAclConnectionInterface* GetLeAclConnectionInterface(
common::ContextualCallback<void(LeMetaEventView)> event_handler,
common::ContextualCallback<void(uint16_t, hci::ErrorCode)> on_disconnect,
common::ContextualCallback<void(hci::ErrorCode, uint16_t, uint8_t, uint16_t, uint16_t)>
on_read_remote_version_complete);
virtual void PutLeAclConnectionInterface();
virtual LeAdvertisingInterface* GetLeAdvertisingInterface(
common::ContextualCallback<void(LeMetaEventView)> event_handler);
virtual LeScanningInterface* GetLeScanningInterface(common::ContextualCallback<void(LeMetaEventView)> event_handler);
virtual LeIsoInterface* GetLeIsoInterface(common::ContextualCallback<void(LeMetaEventView)> event_handler);
std::string ToString() const override {
return "Hci Layer";
}
static constexpr std::chrono::milliseconds kHciTimeoutMs = std::chrono::milliseconds(2000);
static constexpr std::chrono::milliseconds kHciTimeoutRestartMs = std::chrono::milliseconds(5000);
static const ModuleFactory Factory;
protected:
// LINT.ThenChange(fuzz/fuzz_hci_layer.h)
void ListDependencies(ModuleList* list) const override;
void Start() override;
void Stop() override;
virtual void Disconnect(uint16_t handle, ErrorCode reason);
virtual void ReadRemoteVersion(
hci::ErrorCode hci_status, uint16_t handle, uint8_t version, uint16_t manufacturer_name, uint16_t sub_version);
virtual void RegisterLeMetaEventHandler(common::ContextualCallback<void(EventView)> event_handler);
std::list<common::ContextualCallback<void(uint16_t, ErrorCode)>> disconnect_handlers_;
std::list<common::ContextualCallback<void(hci::ErrorCode, uint16_t, uint8_t, uint16_t, uint16_t)>>
read_remote_version_handlers_;
private:
struct impl;
struct hal_callbacks;
impl* impl_;
hal_callbacks* hal_callbacks_;
template <typename T>
class CommandInterfaceImpl : public CommandInterface<T> {
public:
explicit CommandInterfaceImpl(HciLayer& hci) : hci_(hci) {}
~CommandInterfaceImpl() = default;
void EnqueueCommand(std::unique_ptr<T> command,
common::ContextualOnceCallback<void(CommandCompleteView)> on_complete) override {
hci_.EnqueueCommand(move(command), std::move(on_complete));
}
void EnqueueCommand(std::unique_ptr<T> command,
common::ContextualOnceCallback<void(CommandStatusView)> on_status) override {
hci_.EnqueueCommand(move(command), std::move(on_status));
}
HciLayer& hci_;
};
std::mutex callback_handlers_guard_;
void on_disconnection_complete(EventView event_view);
void on_read_remote_version_complete(EventView event_view);
// Interfaces
CommandInterfaceImpl<AclCommandBuilder> acl_connection_manager_interface_{*this};
CommandInterfaceImpl<AclCommandBuilder> le_acl_connection_manager_interface_{*this};
CommandInterfaceImpl<SecurityCommandBuilder> security_interface{*this};
CommandInterfaceImpl<LeSecurityCommandBuilder> le_security_interface{*this};
CommandInterfaceImpl<LeAdvertisingCommandBuilder> le_advertising_interface{*this};
CommandInterfaceImpl<LeScanningCommandBuilder> le_scanning_interface{*this};
CommandInterfaceImpl<LeIsoCommandBuilder> le_iso_interface{*this};
};
} // namespace hci
} // namespace bluetooth
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