broadcastradio/1.1/utils/Utils.h

/*
 * Copyright (C) 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.
 */
#ifndef ANDROID_HARDWARE_BROADCASTRADIO_V1_1_UTILS_H
#define ANDROID_HARDWARE_BROADCASTRADIO_V1_1_UTILS_H

#include <android/hardware/broadcastradio/1.1/types.h>
#include <chrono>
#include <queue>
#include <thread>

namespace android {
namespace hardware {
namespace broadcastradio {
namespace V1_1 {
namespace implementation {
namespace utils {

/**
 * Checks, if {@code pointer} tunes to {@channel}.
 *
 * For example, having a channel {AMFM_FREQUENCY = 103.3}:
 * - selector {AMFM_FREQUENCY = 103.3, HD_SUBCHANNEL = 0} can tune to this channel;
 * - selector {AMFM_FREQUENCY = 103.3, HD_SUBCHANNEL = 1} can't.
 *
 * @param pointer selector we're trying to match against channel.
 * @param channel existing channel.
 */
bool tunesTo(const ProgramSelector& pointer, const ProgramSelector& channel);

ProgramType getType(const ProgramSelector& sel);
bool isAmFm(const ProgramType type);

bool hasId(const ProgramSelector& sel, const IdentifierType type);

/**
 * Returns ID (either primary or secondary) for a given program selector.
 *
 * If the selector does not contain given type, returns 0 and emits a warning.
 */
uint64_t getId(const ProgramSelector& sel, const IdentifierType type);

/**
 * Returns ID (either primary or secondary) for a given program selector.
 *
 * If the selector does not contain given type, returns default value.
 */
uint64_t getId(const ProgramSelector& sel, const IdentifierType type, uint64_t defval);

ProgramSelector make_selector(V1_0::Band band, uint32_t channel, uint32_t subChannel = 0);

bool getLegacyChannel(const ProgramSelector& sel, uint32_t& channelOut, uint32_t& subChannelOut);

bool isDigital(const ProgramSelector& sel);

}  // namespace utils
}  // namespace implementation
}  // namespace V1_1
}  // namespace broadcastradio
}  // namespace hardware
}  // namespace android

#endif  // ANDROID_HARDWARE_BROADCASTRADIO_V1_1_UTILS_H