87 lines
3.1 KiB
C++
87 lines
3.1 KiB
C++
/*
|
|
* Copyright 2020 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 <cstdint>
|
|
|
|
#include "hci/acl_manager/le_acl_connection.h"
|
|
#include "hci/hci_packets.h"
|
|
#include "os/handler.h"
|
|
|
|
namespace bluetooth {
|
|
namespace l2cap {
|
|
namespace le {
|
|
namespace internal {
|
|
class Link;
|
|
}
|
|
|
|
/**
|
|
* Proxy for L2CAP user to get some link layer properties (connection handle, role), and set link layer options
|
|
* (connection parameter update, set PHY). Only few special L2CAP users need to use it, including Security Manager,
|
|
* Hearing Aid Profile, HID Profile, and Java API.
|
|
* Note: Setting link layer options applies to the LINK, not single CHANNEL.
|
|
*/
|
|
class LinkOptions {
|
|
public:
|
|
/**
|
|
* Get LL Role. Most applications should NOT know its LL role.
|
|
*/
|
|
hci::Role GetRole() const;
|
|
|
|
/**
|
|
* Get ACL Handle. Most applications should NOT know its ACL handle.
|
|
*/
|
|
uint16_t GetHandle() const;
|
|
|
|
/**
|
|
* Return Local address used for initiation of this connection.
|
|
*/
|
|
hci::AddressWithType GetLocalAddress() const;
|
|
|
|
/**
|
|
* Update the LE link layer connection parameters.
|
|
* Depending on the link role and supported features, may directly send HCI command to update link, or send L2CAP
|
|
* request to advise the remote. The updated connection parameters are still determined by controller. It's a link
|
|
* layer change for performance tuning, and no host layer change should be observable by user.
|
|
* Parameters are defined in Core spec HCI 7.8.18.
|
|
* @return true iff the request is sent to controller through HCI or remote through L2CAP
|
|
* (Use it only if you know what you are doing!)
|
|
*/
|
|
bool UpdateConnectionParameter(uint16_t conn_interval_min, uint16_t conn_interval_max, uint16_t conn_latency,
|
|
uint16_t supervision_timeout, uint16_t min_ce_length, uint16_t max_ce_length);
|
|
|
|
/**
|
|
* Set PHY preference. The PHY is determined by the controller.
|
|
* No host layer change should be observable by user.
|
|
* Parameters are defined in Core spec HCI 7.8.49.
|
|
* @return true iff the request is sent to controller through HCI
|
|
* (Use it only if you know what you are doing!)
|
|
*/
|
|
bool SetPhy(uint8_t all_phys, uint8_t tx_phys, uint8_t rx_phys, uint16_t phy_options);
|
|
|
|
LinkOptions(hci::acl_manager::LeAclConnection* acl_connection, internal::Link* link, os::Handler* l2cap_handler);
|
|
|
|
private:
|
|
hci::acl_manager::LeAclConnection* acl_connection_ = nullptr;
|
|
internal::Link* link_ = nullptr;
|
|
os::Handler* l2cap_handler_ = nullptr;
|
|
};
|
|
|
|
} // namespace le
|
|
} // namespace l2cap
|
|
} // namespace bluetooth
|