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AudioInterface: Add setters for AIS/AID sample rate

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This commit is contained in:
Sepalani 2021-09-23 22:46:35 +04:00
parent 59eb1253a3
commit 9b9f701ac5
1 changed files with 47 additions and 25 deletions
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72
Source/Core/Core/HW/AudioInterface.cpp
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@ -70,6 +70,12 @@ enum
AID_48KHz = 0
};
enum class SampleRate
{
AI32KHz,
AI48KHz,
};
// AI Control Register
union AICR
{
@ -189,30 +195,56 @@ void Update(u64 userdata, s64 cycles_late)
}
CoreTiming::ScheduleEvent(GetAIPeriod() - cycles_late, event_type_ai);
}
void SetAIDSampleRate(SampleRate sample_rate)
{
if (sample_rate == SampleRate::AI32KHz)
{
s_control.AIDFR = AID_32KHz;
s_aid_sample_rate_divisor = Get32KHzSampleRateDivisor();
}
else
{
s_control.AIDFR = AID_48KHz;
s_aid_sample_rate_divisor = Get48KHzSampleRateDivisor();
}
SoundStream* sound_stream = Core::System::GetInstance().GetSoundStream();
sound_stream->GetMixer()->SetDMAInputSampleRateDivisor(s_aid_sample_rate_divisor);
}
void SetAISSampleRate(SampleRate sample_rate)
{
if (sample_rate == SampleRate::AI32KHz)
{
s_control.AISFR = AIS_32KHz;
s_ais_sample_rate_divisor = Get32KHzSampleRateDivisor();
}
else
{
s_control.AISFR = AIS_48KHz;
s_ais_sample_rate_divisor = Get48KHzSampleRateDivisor();
}
s_cpu_cycles_per_sample = static_cast<u64>(SystemTimers::GetTicksPerSecond()) *
s_ais_sample_rate_divisor / Mixer::FIXED_SAMPLE_RATE_DIVIDEND;
SoundStream* sound_stream = Core::System::GetInstance().GetSoundStream();
sound_stream->GetMixer()->SetStreamInputSampleRateDivisor(s_ais_sample_rate_divisor);
}
} // namespace
void Init()
{
s_control.hex = 0;
s_control.AISFR = AIS_48KHz;
s_control.AIDFR = AID_32KHz;
SetAISSampleRate(SampleRate::AI48KHz);
SetAIDSampleRate(SampleRate::AI32KHz);
s_volume.hex = 0;
s_sample_counter = 0;
s_interrupt_timing = 0;
s_last_cpu_time = 0;
s_ais_sample_rate_divisor = Get48KHzSampleRateDivisor();
s_aid_sample_rate_divisor = Get32KHzSampleRateDivisor();
s_cpu_cycles_per_sample = static_cast<u64>(SystemTimers::GetTicksPerSecond()) *
s_ais_sample_rate_divisor / Mixer::FIXED_SAMPLE_RATE_DIVIDEND;
event_type_ai = CoreTiming::RegisterEvent("AICallback", Update);
auto& system = Core::System::GetInstance();
SoundStream* sound_stream = system.GetSoundStream();
sound_stream->GetMixer()->SetDMAInputSampleRateDivisor(GetAIDSampleRateDivisor());
sound_stream->GetMixer()->SetStreamInputSampleRateDivisor(GetAISSampleRateDivisor());
}
void Shutdown()
@ -238,31 +270,21 @@ void RegisterMMIO(MMIO::Mapping* mmio, u32 base)
s_control.AIINTVLD = tmp_ai_ctrl.AIINTVLD;
}
auto& system = Core::System::GetInstance();
SoundStream* sound_stream = system.GetSoundStream();
// Set frequency of streaming audio
if (tmp_ai_ctrl.AISFR != s_control.AISFR)
{
// AISFR rates below are intentionally inverted wrt yagcd
DEBUG_LOG_FMT(AUDIO_INTERFACE, "Change AISFR to {}",
tmp_ai_ctrl.AISFR ? "48khz" : "32khz");
s_control.AISFR = tmp_ai_ctrl.AISFR;
s_ais_sample_rate_divisor =
tmp_ai_ctrl.AISFR ? Get48KHzSampleRateDivisor() : Get32KHzSampleRateDivisor();
sound_stream->GetMixer()->SetStreamInputSampleRateDivisor(s_ais_sample_rate_divisor);
s_cpu_cycles_per_sample = static_cast<u64>(SystemTimers::GetTicksPerSecond()) *
s_ais_sample_rate_divisor / Mixer::FIXED_SAMPLE_RATE_DIVIDEND;
SetAISSampleRate(tmp_ai_ctrl.AISFR ? SampleRate::AI48KHz : SampleRate::AI32KHz);
}
// Set frequency of DMA
if (tmp_ai_ctrl.AIDFR != s_control.AIDFR)
{
DEBUG_LOG_FMT(AUDIO_INTERFACE, "Change AIDFR to {}",
tmp_ai_ctrl.AIDFR ? "32khz" : "48khz");
s_control.AIDFR = tmp_ai_ctrl.AIDFR;
s_aid_sample_rate_divisor =
tmp_ai_ctrl.AIDFR ? Get32KHzSampleRateDivisor() : Get48KHzSampleRateDivisor();
sound_stream->GetMixer()->SetDMAInputSampleRateDivisor(s_aid_sample_rate_divisor);
SetAIDSampleRate(tmp_ai_ctrl.AIDFR ? SampleRate::AI32KHz : SampleRate::AI48KHz);
}
// Streaming counter