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/*
* Copyright 2023 jacqueline <me@jacqueline.id.au>
*
* SPDX-License-Identifier: GPL-3.0-only
*/
#pragma once
#include <stdint.h>
#include <cstdint>
#include <memory>
#include <vector>
#include "audio/audio_sink.hpp"
#include "drivers/gpios.hpp"
#include "drivers/i2s_dac.hpp"
#include "drivers/pcm_buffer.hpp"
#include "result.hpp"
namespace audio {
class I2SAudioOutput : public IAudioOutput {
public:
I2SAudioOutput(drivers::IGpios&, drivers::OutputBuffers&);
auto SetMaxVolume(uint16_t) -> void;
auto SetVolumeDb(uint16_t) -> void;
auto SetVolumeImbalance(int_fast8_t balance) -> void override;
auto SetVolume(uint16_t) -> void override;
auto GetVolume() -> uint16_t override;
auto GetVolumePct() -> uint_fast8_t override;
auto SetVolumePct(uint_fast8_t val) -> bool override;
auto GetVolumeDb() -> int_fast16_t override;
auto SetVolumeDb(int_fast16_t) -> bool override;
auto AdjustVolumeUp() -> bool override;
auto AdjustVolumeDown() -> bool override;
auto PrepareFormat(const Format&) -> Format override;
auto Configure(const Format& format) -> void override;
I2SAudioOutput(const I2SAudioOutput&) = delete;
I2SAudioOutput& operator=(const I2SAudioOutput&) = delete;
protected:
auto changeMode(Modes) -> void override;
private:
drivers::IGpios& expander_;
drivers::OutputBuffers& buffers_;
std::unique_ptr<drivers::I2SDac> dac_;
Modes current_mode_;
std::optional<Format> current_config_;
int_fast8_t left_difference_;
uint16_t current_volume_;
uint16_t max_volume_;
};
} // namespace audio
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