126 lines
3.5 KiB
C++
126 lines
3.5 KiB
C++
//
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// Copyright (C) 2020 The Android Open Source Project
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#pragma once
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#include <stdint.h>
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#include <vector>
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#include "host/libs/audio_connector/shm_layout.h"
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namespace cuttlefish {
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class AudioCommand {
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public:
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virtual ~AudioCommand();
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AudioCommandType type() const { return type_; }
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AudioStatus status() const { return status_; }
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protected:
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AudioCommand(AudioCommandType type) : type_(type) {}
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void MarkReplied(AudioStatus status) { status_ = status; }
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private:
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AudioStatus status_ = AudioStatus::NOT_SET;
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const AudioCommandType type_;
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};
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template <typename R>
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class InfoCommand : public AudioCommand {
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public:
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InfoCommand(AudioCommandType type, uint32_t start_id, size_t count, R* reply)
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: AudioCommand(type),
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start_id_(start_id),
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count_(count),
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info_reply_(reply) {}
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uint32_t start_id() const { return start_id_; }
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uint32_t count() const { return count_; }
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protected:
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R* info_reply() { return info_reply_; }
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private:
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const uint32_t start_id_;
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const size_t count_;
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R* info_reply_;
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};
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class ChmapInfoCommand : public InfoCommand<virtio_snd_chmap_info> {
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public:
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ChmapInfoCommand(uint32_t start_id, size_t count,
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virtio_snd_chmap_info* chmap_info);
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void Reply(AudioStatus status,
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const std::vector<virtio_snd_chmap_info>& reply);
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};
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class JackInfoCommand : public InfoCommand<virtio_snd_jack_info> {
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public:
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JackInfoCommand(uint32_t start_id, size_t count,
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virtio_snd_jack_info* jack_info);
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void Reply(AudioStatus status,
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const std::vector<virtio_snd_jack_info>& reply);
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};
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class StreamInfoCommand : public InfoCommand<virtio_snd_pcm_info> {
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public:
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StreamInfoCommand(uint32_t start_id, size_t count,
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virtio_snd_pcm_info* pcm_info);
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void Reply(AudioStatus status, const std::vector<virtio_snd_pcm_info>& reply);
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};
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// Serves the START, STOP, PREPARE and RELEASE commands. It's also the
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// superclass of the class handling SET_PARAMS
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struct StreamControlCommand : public AudioCommand {
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public:
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StreamControlCommand(AudioCommandType type, uint32_t stream_id);
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uint32_t stream_id() const { return stream_id_; }
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void Reply(AudioStatus status);
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private:
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const uint32_t stream_id_;
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};
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struct StreamSetParamsCommand : public StreamControlCommand {
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public:
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StreamSetParamsCommand(uint32_t stream_id, uint32_t buffer_bytes,
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uint32_t period_bytes, uint32_t features,
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uint8_t channels, uint8_t format, uint8_t rate);
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uint32_t buffer_bytes() const { return buffer_bytes_; }
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uint32_t period_bytes() const { return period_bytes_; }
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uint32_t features() const { return features_; }
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uint8_t channels() const { return channels_; }
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uint8_t format() const { return format_; }
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uint8_t rate() const { return rate_; }
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private:
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const uint32_t buffer_bytes_;
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const uint32_t period_bytes_;
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const uint32_t features_;
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const uint8_t channels_;
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const uint8_t format_;
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const uint8_t rate_;
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};
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} // namespace cuttlefish
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