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// Copyright 2022 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "device/bluetooth/floss/bluetooth_low_energy_scan_session_floss.h"
#include "base/memory/weak_ptr.h"
#include "device/bluetooth/bluetooth_low_energy_scan_session.h"
#include "device/bluetooth/floss/bluetooth_device_floss.h"
namespace floss {
BluetoothLowEnergyScanSessionFloss::BluetoothLowEnergyScanSessionFloss(
std::unique_ptr<device::BluetoothLowEnergyScanFilter> filter,
base::WeakPtr<device::BluetoothLowEnergyScanSession::Delegate> delegate,
base::OnceCallback<void(const std::string&)> destructor_callback)
: filter_(std::move(filter)),
delegate_(std::move(delegate)),
destructor_callback_(std::move(destructor_callback)) {}
BluetoothLowEnergyScanSessionFloss::~BluetoothLowEnergyScanSessionFloss() {
std::move(destructor_callback_).Run(uuid_.value());
}
void BluetoothLowEnergyScanSessionFloss::OnActivate(uint8_t scanner_id,
bool success) {
scanner_id_ = scanner_id;
if (!delegate_) {
return;
}
if (!success) {
delegate_->OnSessionStarted(
this, BluetoothLowEnergyScanSession::ErrorCode::kFailed);
return;
}
has_activated_ = true;
delegate_->OnSessionStarted(this, /*error_code=*/std::nullopt);
}
void BluetoothLowEnergyScanSessionFloss::OnRelease() {
if (!delegate_) {
return;
}
if (!has_activated_) {
delegate_->OnSessionStarted(
this, BluetoothLowEnergyScanSession::ErrorCode::kFailed);
return;
}
delegate_->OnSessionInvalidated(this);
}
void BluetoothLowEnergyScanSessionFloss::OnDeviceFound(
device::BluetoothDevice* device) {
if (!delegate_ || !device) {
return;
}
delegate_->OnDeviceFound(this, device);
}
void BluetoothLowEnergyScanSessionFloss::OnDeviceLost(
device::BluetoothDevice* device) {
if (!delegate_ || !device) {
return;
}
delegate_->OnDeviceLost(this, device);
}
void BluetoothLowEnergyScanSessionFloss::OnRegistered(
device::BluetoothUUID uuid) {
uuid_ = uuid;
}
std::optional<ScanFilter>
BluetoothLowEnergyScanSessionFloss::GetFlossScanFilter() {
if (!filter_)
return std::nullopt;
ScanFilter filter;
filter.rssi_high_threshold = filter_->device_found_rssi_threshold();
filter.rssi_low_threshold = filter_->device_lost_rssi_threshold();
filter.rssi_low_timeout = filter_->device_lost_timeout().InSeconds();
if (filter_->rssi_sampling_period().has_value()) {
filter.rssi_sampling_period =
filter_->rssi_sampling_period().value().InMilliseconds() / 100;
} else {
// If no given value, use default value of reporting only one advertisement
// per device during monitoring period
filter.rssi_sampling_period = 0xFF;
}
for (auto& pattern : filter_->patterns()) {
ScanFilterPattern p;
p.start_position = pattern.start_position();
p.ad_type = static_cast<uint8_t>(pattern.data_type());
p.content = pattern.value();
filter.condition.patterns.push_back(p);
}
return filter;
}
} // namespace floss
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