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/*
* Copyright 2022 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.
*/
#include "hci_socket_transport.h"
#include "os/log.h" // for LOG_INFO, LOG_ALWAYS_FATAL
namespace rootcanal {
HciSocketTransport::HciSocketTransport(std::shared_ptr<AsyncDataChannel> socket)
: socket_(socket) {}
void HciSocketTransport::RegisterCallbacks(PacketCallback command_callback,
PacketCallback acl_callback,
PacketCallback sco_callback,
PacketCallback iso_callback,
CloseCallback close_callback) {
// TODO: Avoid the copy here by using new buffer in H4DataChannel
h4_ = H4DataChannelPacketizer(
socket_,
[command_callback](const std::vector<uint8_t>& raw_command) {
std::shared_ptr<std::vector<uint8_t>> packet_copy =
std::make_shared<std::vector<uint8_t>>(raw_command);
command_callback(packet_copy);
},
[](const std::vector<uint8_t>&) {
LOG_ALWAYS_FATAL("Unexpected Event in HciSocketTransport!");
},
[acl_callback](const std::vector<uint8_t>& raw_acl) {
std::shared_ptr<std::vector<uint8_t>> packet_copy =
std::make_shared<std::vector<uint8_t>>(raw_acl);
acl_callback(packet_copy);
},
[sco_callback](const std::vector<uint8_t>& raw_sco) {
std::shared_ptr<std::vector<uint8_t>> packet_copy =
std::make_shared<std::vector<uint8_t>>(raw_sco);
sco_callback(packet_copy);
},
[iso_callback](const std::vector<uint8_t>& raw_iso) {
std::shared_ptr<std::vector<uint8_t>> packet_copy =
std::make_shared<std::vector<uint8_t>>(raw_iso);
iso_callback(packet_copy);
},
close_callback);
}
void HciSocketTransport::TimerTick() { h4_.OnDataReady(socket_); }
void HciSocketTransport::SendHci(PacketType packet_type,
const std::vector<uint8_t>& packet) {
if (!socket_ || !socket_->Connected()) {
LOG_INFO("Closed socket. Dropping packet of type %d",
static_cast<int>(packet_type));
return;
}
uint8_t type = static_cast<uint8_t>(packet_type);
h4_.Send(type, packet.data(), packet.size());
}
void HciSocketTransport::SendEvent(const std::vector<uint8_t>& packet) {
SendHci(PacketType::EVENT, packet);
}
void HciSocketTransport::SendAcl(const std::vector<uint8_t>& packet) {
SendHci(PacketType::ACL, packet);
}
void HciSocketTransport::SendSco(const std::vector<uint8_t>& packet) {
SendHci(PacketType::SCO, packet);
}
void HciSocketTransport::SendIso(const std::vector<uint8_t>& packet) {
SendHci(PacketType::ISO, packet);
}
void HciSocketTransport::Close() { socket_->Close(); }
} // namespace rootcanal
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