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52 lines
1.5 KiB
52 lines
1.5 KiB
2 years ago
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#include "audio_fsm.hpp"
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#include "audio_decoder.hpp"
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#include "audio_task.hpp"
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#include "dac.hpp"
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#include "fatfs_audio_input.hpp"
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#include "i2s_audio_output.hpp"
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#include "pipeline.hpp"
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namespace audio {
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drivers::GpioExpander* AudioState::sGpioExpander;
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std::weak_ptr<drivers::AudioDac> AudioState::sDac;
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std::weak_ptr<database::Database> AudioState::sDatabase;
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std::unique_ptr<FatfsAudioInput> AudioState::sFileSource;
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std::unique_ptr<I2SAudioOutput> AudioState::sI2SOutput;
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std::vector<std::unique_ptr<IAudioElement>> AudioState::sPipeline;
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auto AudioState::Init(drivers::GpioExpander* gpio_expander,
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std::weak_ptr<drivers::AudioDac> dac,
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std::weak_ptr<database::Database> database) -> void {
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sGpioExpander = gpio_expander;
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sDac = dac;
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sDatabase = database;
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}
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namespace states {
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void Uninitialised::react(const system_fsm::BootComplete&) {
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transit<Standby>([&]() {
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sFileSource.reset(new FatfsAudioInput());
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sI2SOutput.reset(new I2SAudioOutput(sGpioExpander, sDac));
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// Perform initial pipeline configuration.
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// TODO(jacqueline): Factor this out once we have any kind of dynamic
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// reconfiguration.
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AudioDecoder* codec = new AudioDecoder();
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sPipeline.emplace_back(codec);
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Pipeline* pipeline = new Pipeline(sPipeline.front().get());
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pipeline->AddInput(sFileSource.get());
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task::StartPipeline(pipeline, sI2SOutput.get());
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});
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}
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} // namespace states
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} // namespace audio
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FSM_INITIAL_STATE(audio::AudioState, audio::states::Uninitialised)
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