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//
// Copyright 2017 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.
//
#define LOG_TAG "android.hardware.bluetooth@1.0.sim"
#include "bluetooth_hci.h"
#include <base/logging.h>
#include <string.h>
#include <utils/Log.h>
#include "acl_packet.h"
#include "event_packet.h"
#include "hci_internals.h"
#include "sco_packet.h"
namespace android {
namespace hardware {
namespace bluetooth {
namespace V1_0 {
namespace sim {
using android::hardware::hidl_vec;
using test_vendor_lib::AclPacket;
using test_vendor_lib::AsyncManager;
using test_vendor_lib::AsyncTaskId;
using test_vendor_lib::CommandPacket;
using test_vendor_lib::DualModeController;
using test_vendor_lib::EventPacket;
using test_vendor_lib::ScoPacket;
using test_vendor_lib::TaskCallback;
using test_vendor_lib::TestChannelTransport;
class BluetoothDeathRecipient : public hidl_death_recipient {
public:
BluetoothDeathRecipient(const sp<IBluetoothHci> hci) : mHci(hci) {}
virtual void serviceDied(
uint64_t /* cookie */,
const wp<::android::hidl::base::V1_0::IBase>& /* who */) {
ALOGE("BluetoothDeathRecipient::serviceDied - Bluetooth service died");
has_died_ = true;
mHci->close();
}
sp<IBluetoothHci> mHci;
bool getHasDied() const { return has_died_; }
void setHasDied(bool has_died) { has_died_ = has_died; }
private:
bool has_died_;
};
BluetoothHci::BluetoothHci()
: death_recipient_(new BluetoothDeathRecipient(this)) {}
Return<void> BluetoothHci::initialize(const sp<IBluetoothHciCallbacks>& cb) {
ALOGI("%s", __func__);
if (cb == nullptr) {
ALOGE("cb == nullptr! -> Unable to call initializationComplete(ERR)");
return Void();
}
death_recipient_->setHasDied(false);
cb->linkToDeath(death_recipient_, 0);
test_channel_transport_.RegisterCommandHandler(
[this](const std::string& name, const std::vector<std::string>& args) {
async_manager_.ExecAsync(
std::chrono::milliseconds(0), [this, name, args]() {
controller_.HandleTestChannelCommand(name, args);
});
});
controller_.RegisterEventChannel([cb](std::unique_ptr<EventPacket> event) {
size_t header_bytes = event->GetHeaderSize();
size_t payload_bytes = event->GetPayloadSize();
hidl_vec<uint8_t> hci_event;
hci_event.resize(header_bytes + payload_bytes);
memcpy(hci_event.data(), event->GetHeader().data(), header_bytes);
memcpy(hci_event.data() + header_bytes, event->GetPayload().data(),
payload_bytes);
cb->hciEventReceived(hci_event);
});
controller_.RegisterAclChannel([cb](std::unique_ptr<AclPacket> packet) {
std::vector<uint8_t> acl_vector = packet->GetPacket();
hidl_vec<uint8_t> acl_packet = acl_vector;
cb->aclDataReceived(acl_packet);
});
controller_.RegisterScoChannel([cb](std::unique_ptr<ScoPacket> packet) {
size_t header_bytes = packet->GetHeaderSize();
size_t payload_bytes = packet->GetPayloadSize();
hidl_vec<uint8_t> sco_packet;
sco_packet.resize(header_bytes + payload_bytes);
memcpy(sco_packet.data(), packet->GetHeader().data(), header_bytes);
memcpy(sco_packet.data() + header_bytes, packet->GetPayload().data(),
payload_bytes);
cb->scoDataReceived(sco_packet);
});
controller_.RegisterTaskScheduler(
[this](std::chrono::milliseconds delay, const TaskCallback& task) {
return async_manager_.ExecAsync(delay, task);
});
controller_.RegisterPeriodicTaskScheduler(
[this](std::chrono::milliseconds delay, std::chrono::milliseconds period,
const TaskCallback& task) {
return async_manager_.ExecAsyncPeriodically(delay, period, task);
});
controller_.RegisterTaskCancel(
[this](AsyncTaskId task) { async_manager_.CancelAsyncTask(task); });
SetUpTestChannel(6111);
unlink_cb_ = [cb](sp<BluetoothDeathRecipient>& death_recipient) {
if (death_recipient->getHasDied())
ALOGI("Skipping unlink call, service died.");
else
cb->unlinkToDeath(death_recipient);
};
cb->initializationComplete(Status::SUCCESS);
return Void();
}
Return<void> BluetoothHci::close() {
ALOGI("%s", __func__);
return Void();
}
Return<void> BluetoothHci::sendHciCommand(const hidl_vec<uint8_t>& packet) {
async_manager_.ExecAsync(std::chrono::milliseconds(0), [this, packet]() {
uint16_t opcode = packet[0] | (packet[1] << 8);
std::unique_ptr<CommandPacket> command =
std::unique_ptr<CommandPacket>(new CommandPacket(opcode));
for (size_t i = 3; i < packet.size(); i++)
command->AddPayloadOctets1(packet[i]);
controller_.HandleCommand(std::move(command));
});
return Void();
}
Return<void> BluetoothHci::sendAclData(const hidl_vec<uint8_t>& packet) {
async_manager_.ExecAsync(std::chrono::milliseconds(0), [this, packet]() {
uint16_t channel = (packet[0] | (packet[1] << 8)) & 0xfff;
AclPacket::PacketBoundaryFlags boundary_flags =
static_cast<AclPacket::PacketBoundaryFlags>((packet[1] & 0x30) >> 4);
AclPacket::BroadcastFlags broadcast_flags =
static_cast<AclPacket::BroadcastFlags>((packet[1] & 0xC0) >> 6);
std::unique_ptr<AclPacket> acl = std::unique_ptr<AclPacket>(
new AclPacket(channel, boundary_flags, broadcast_flags));
for (size_t i = 4; i < packet.size(); i++)
acl->AddPayloadOctets1(packet[i]);
controller_.HandleAcl(std::move(acl));
});
return Void();
}
Return<void> BluetoothHci::sendScoData(const hidl_vec<uint8_t>& packet) {
async_manager_.ExecAsync(std::chrono::milliseconds(0), [this, packet]() {
uint16_t channel = (packet[0] | (packet[1] << 8)) & 0xfff;
ScoPacket::PacketStatusFlags packet_status =
static_cast<ScoPacket::PacketStatusFlags>((packet[1] & 0x30) >> 4);
std::unique_ptr<ScoPacket> sco =
std::unique_ptr<ScoPacket>(new ScoPacket(channel, packet_status));
for (size_t i = 3; i < packet.size(); i++)
sco->AddPayloadOctets1(packet[i]);
controller_.HandleSco(std::move(sco));
});
return Void();
}
void BluetoothHci::SetUpTestChannel(int port) {
int socket_fd = test_channel_transport_.SetUp(port);
if (socket_fd == -1) {
ALOGE("Test channel SetUp(%d) failed.", port);
return;
}
ALOGI("Test channel SetUp() successful");
async_manager_.WatchFdForNonBlockingReads(socket_fd, [this](int socket_fd) {
int conn_fd = test_channel_transport_.Accept(socket_fd);
if (conn_fd < 0) {
ALOGE("Error watching test channel fd.");
return;
}
ALOGI("Test channel connection accepted.");
async_manager_.WatchFdForNonBlockingReads(conn_fd, [this](int conn_fd) {
test_channel_transport_.OnCommandReady(conn_fd, [this, conn_fd]() {
async_manager_.StopWatchingFileDescriptor(conn_fd);
});
});
});
}
/* Fallback to shared library if there is no service. */
IBluetoothHci* HIDL_FETCH_IBluetoothHci(const char* /* name */) {
return new BluetoothHci();
}
} // namespace gce
} // namespace V1_0
} // namespace bluetooth
} // namespace hardware
} // namespace android
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