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478 lines
16 KiB
C++
478 lines
16 KiB
C++
// Copyright 2014 Citra Emulator Project
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// Licensed under GPLv2 or any later version
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// Refer to the license.txt file included.
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#ifdef HAVE_CUBEB
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#include "audio_core/cubeb_input.h"
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#endif
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#include "common/logging/log.h"
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#include "core/core.h"
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#include "core/frontend/mic.h"
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#include "core/hle/ipc.h"
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#include "core/hle/ipc_helpers.h"
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#include "core/hle/kernel/event.h"
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#include "core/hle/kernel/handle_table.h"
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#include "core/hle/kernel/kernel.h"
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#include "core/hle/kernel/shared_memory.h"
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#include "core/hle/service/mic_u.h"
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#include "core/settings.h"
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namespace Service::MIC {
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/// Microphone audio encodings.
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enum class Encoding : u8 {
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PCM8 = 0, ///< Unsigned 8-bit PCM.
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PCM16 = 1, ///< Unsigned 16-bit PCM.
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PCM8Signed = 2, ///< Signed 8-bit PCM.
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PCM16Signed = 3, ///< Signed 16-bit PCM.
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};
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/// Microphone audio sampling rates. The actual accurate sampling rate can be calculated using
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/// (16756991 / 512) / (SampleRate + 1) where SampleRate is one of the above values.
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enum class SampleRate : u8 {
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Rate32730 = 0, ///< 32728.498 Hz
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Rate16360 = 1, ///< 16364.479 Hz
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Rate10910 = 2, ///< 10909.499 Hz
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Rate8180 = 3 ///< 8182.1245 Hz
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};
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constexpr u32 GetSampleRateInHz(SampleRate sample_rate) {
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switch (sample_rate) {
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case SampleRate::Rate8180:
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return 8182;
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case SampleRate::Rate10910:
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return 10909;
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case SampleRate::Rate16360:
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return 16364;
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case SampleRate::Rate32730:
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return 32728;
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default:
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UNREACHABLE();
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}
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}
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// The 3ds hardware was tested to write to the sharedmem every 15 samples regardless of sample_rate.
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// So we can just divide the sample rate by 16 and that'll give the correct timing for the event
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constexpr u64 GetBufferUpdateRate(SampleRate sample_rate) {
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return GetSampleRateInHz(sample_rate) / 16;
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}
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// Variables holding the current mic buffer writing state
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struct State {
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u8* sharedmem_buffer = nullptr;
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u32 sharedmem_size = 0;
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std::size_t size = 0;
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u32 offset = 0;
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u32 initial_offset = 0;
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bool looped_buffer = false;
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u8 sample_size = 0;
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SampleRate sample_rate = SampleRate::Rate16360;
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void WriteSamples(const std::vector<u8>& samples) {
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u32 bytes_total_written = 0;
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const std::size_t remaining_space = size - offset;
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std::size_t bytes_to_write = std::min(samples.size(), remaining_space);
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// Write as many samples as we can to the buffer.
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// TODO if the sample size is 16bit, this could theoretically cut a sample in the case where
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// the application configures an odd size
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std::memcpy(sharedmem_buffer + offset, samples.data(), bytes_to_write);
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offset += static_cast<u32>(bytes_to_write);
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bytes_total_written += static_cast<u32>(bytes_to_write);
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// If theres any samples left to write after we looped, go ahead and write them now
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if (looped_buffer && samples.size() > bytes_total_written) {
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offset = initial_offset;
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bytes_to_write = std::min(samples.size() - bytes_total_written, size);
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std::memcpy(sharedmem_buffer + offset, samples.data() + bytes_total_written,
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bytes_to_write);
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offset += static_cast<u32>(bytes_to_write);
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}
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// The last 4 bytes of the shared memory contains the latest offset
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// so update that as well https://www.3dbrew.org/wiki/MIC_Shared_Memory
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u32_le off = offset;
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std::memcpy(sharedmem_buffer + (sharedmem_size - sizeof(u32)), reinterpret_cast<u8*>(&off),
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sizeof(u32));
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}
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};
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struct MIC_U::Impl {
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explicit Impl(Core::System& system) : timing(system.CoreTiming()) {
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buffer_full_event =
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system.Kernel().CreateEvent(Kernel::ResetType::OneShot, "MIC_U::buffer_full_event");
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buffer_write_event =
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timing.RegisterEvent("MIC_U::UpdateBuffer", [this](u64 userdata, s64 cycles_late) {
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UpdateSharedMemBuffer(userdata, cycles_late);
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});
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}
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void MapSharedMem(Kernel::HLERequestContext& ctx) {
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IPC::RequestParser rp{ctx, 0x01, 1, 2};
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const u32 size = rp.Pop<u32>();
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shared_memory = rp.PopObject<Kernel::SharedMemory>();
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if (shared_memory) {
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shared_memory->SetName("MIC_U:shared_memory");
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state.sharedmem_buffer = shared_memory->GetPointer();
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state.sharedmem_size = size;
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}
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IPC::RequestBuilder rb = rp.MakeBuilder(1, 0);
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rb.Push(RESULT_SUCCESS);
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LOG_TRACE(Service_MIC, "called, size=0x{:X}", size);
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}
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void UnmapSharedMem(Kernel::HLERequestContext& ctx) {
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IPC::RequestParser rp{ctx, 0x02, 0, 0};
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IPC::RequestBuilder rb = rp.MakeBuilder(1, 0);
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shared_memory = nullptr;
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rb.Push(RESULT_SUCCESS);
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LOG_TRACE(Service_MIC, "called");
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}
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void UpdateSharedMemBuffer(u64 userdata, s64 cycles_late) {
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if (change_mic_impl_requested.exchange(false)) {
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CreateMic();
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}
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// If the event was scheduled before the application requested the mic to stop sampling
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if (!mic->IsSampling()) {
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return;
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}
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Frontend::Mic::Samples samples = mic->Read();
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if (!samples.empty()) {
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// write the samples to sharedmem page
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state.WriteSamples(samples);
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}
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// schedule next run
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timing.ScheduleEvent(GetBufferUpdateRate(state.sample_rate) - cycles_late,
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buffer_write_event);
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}
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void StartSampling(Kernel::HLERequestContext& ctx) {
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IPC::RequestParser rp{ctx, 0x03, 5, 0};
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Encoding encoding = rp.PopEnum<Encoding>();
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SampleRate sample_rate = rp.PopEnum<SampleRate>();
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u32 audio_buffer_offset = rp.PopRaw<u32>();
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u32 audio_buffer_size = rp.Pop<u32>();
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bool audio_buffer_loop = rp.Pop<bool>();
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if (mic->IsSampling()) {
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LOG_CRITICAL(Service_MIC,
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"Application started sampling again before stopping sampling");
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mic->StopSampling();
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}
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auto sign = encoding == Encoding::PCM8Signed || encoding == Encoding::PCM16Signed
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? Frontend::Mic::Signedness::Signed
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: Frontend::Mic::Signedness::Unsigned;
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u8 sample_size = encoding == Encoding::PCM8Signed || encoding == Encoding::PCM8 ? 8 : 16;
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state.offset = state.initial_offset = audio_buffer_offset;
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state.sample_rate = sample_rate;
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state.sample_size = sample_size;
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state.looped_buffer = audio_buffer_loop;
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state.size = audio_buffer_size;
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mic->StartSampling({sign, sample_size, audio_buffer_loop, GetSampleRateInHz(sample_rate),
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audio_buffer_offset, audio_buffer_size});
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timing.ScheduleEvent(GetBufferUpdateRate(state.sample_rate), buffer_write_event);
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IPC::RequestBuilder rb = rp.MakeBuilder(1, 0);
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rb.Push(RESULT_SUCCESS);
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LOG_TRACE(Service_MIC,
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"called, encoding={}, sample_rate={}, "
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"audio_buffer_offset={}, audio_buffer_size={}, audio_buffer_loop={}",
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static_cast<u32>(encoding), static_cast<u32>(sample_rate), audio_buffer_offset,
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audio_buffer_size, audio_buffer_loop);
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}
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void AdjustSampling(Kernel::HLERequestContext& ctx) {
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IPC::RequestParser rp{ctx, 0x04, 1, 0};
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SampleRate sample_rate = rp.PopEnum<SampleRate>();
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mic->AdjustSampleRate(GetSampleRateInHz(sample_rate));
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IPC::RequestBuilder rb = rp.MakeBuilder(1, 0);
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rb.Push(RESULT_SUCCESS);
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LOG_TRACE(Service_MIC, "sample_rate={}", static_cast<u32>(sample_rate));
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}
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void StopSampling(Kernel::HLERequestContext& ctx) {
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IPC::RequestParser rp{ctx, 0x05, 0, 0};
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IPC::RequestBuilder rb = rp.MakeBuilder(1, 0);
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rb.Push(RESULT_SUCCESS);
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mic->StopSampling();
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timing.RemoveEvent(buffer_write_event);
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LOG_TRACE(Service_MIC, "called");
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}
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void IsSampling(Kernel::HLERequestContext& ctx) {
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IPC::RequestParser rp{ctx, 0x06, 0, 0};
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IPC::RequestBuilder rb = rp.MakeBuilder(2, 0);
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rb.Push(RESULT_SUCCESS);
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bool is_sampling = mic->IsSampling();
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rb.Push<bool>(is_sampling);
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LOG_TRACE(Service_MIC, "IsSampling: {}", is_sampling);
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}
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void GetBufferFullEvent(Kernel::HLERequestContext& ctx) {
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IPC::RequestParser rp{ctx, 0x07, 0, 0};
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IPC::RequestBuilder rb = rp.MakeBuilder(1, 2);
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rb.Push(RESULT_SUCCESS);
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rb.PushCopyObjects(buffer_full_event);
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LOG_WARNING(Service_MIC, "(STUBBED) called");
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}
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void SetGain(Kernel::HLERequestContext& ctx) {
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IPC::RequestParser rp{ctx, 0x08, 1, 0};
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u8 gain = rp.Pop<u8>();
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mic->SetGain(gain);
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IPC::RequestBuilder rb = rp.MakeBuilder(1, 0);
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rb.Push(RESULT_SUCCESS);
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LOG_TRACE(Service_MIC, "gain={}", gain);
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}
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void GetGain(Kernel::HLERequestContext& ctx) {
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IPC::RequestParser rp{ctx, 0x09, 0, 0};
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IPC::RequestBuilder rb = rp.MakeBuilder(2, 0);
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rb.Push(RESULT_SUCCESS);
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u8 gain = mic->GetGain();
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rb.Push<u8>(gain);
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LOG_TRACE(Service_MIC, "gain={}", gain);
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}
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void SetPower(Kernel::HLERequestContext& ctx) {
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IPC::RequestParser rp{ctx, 0x0A, 1, 0};
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bool power = rp.Pop<bool>();
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mic->SetPower(power);
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IPC::RequestBuilder rb = rp.MakeBuilder(1, 0);
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rb.Push(RESULT_SUCCESS);
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LOG_TRACE(Service_MIC, "mic_power={}", power);
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}
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void GetPower(Kernel::HLERequestContext& ctx) {
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IPC::RequestParser rp{ctx, 0x0B, 0, 0};
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IPC::RequestBuilder rb = rp.MakeBuilder(2, 0);
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rb.Push(RESULT_SUCCESS);
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bool mic_power = mic->GetPower();
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rb.Push<u8>(mic_power);
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LOG_TRACE(Service_MIC, "called");
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}
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void SetIirFilterMic(Kernel::HLERequestContext& ctx) {
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IPC::RequestParser rp{ctx, 0x0C, 1, 2};
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const u32 size = rp.Pop<u32>();
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const Kernel::MappedBuffer& buffer = rp.PopMappedBuffer();
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IPC::RequestBuilder rb = rp.MakeBuilder(1, 2);
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rb.Push(RESULT_SUCCESS);
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rb.PushMappedBuffer(buffer);
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LOG_WARNING(Service_MIC, "(STUBBED) called, size=0x{:X}, buffer=0x{:08X}", size,
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buffer.GetId());
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}
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void SetClamp(Kernel::HLERequestContext& ctx) {
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IPC::RequestParser rp{ctx, 0x0D, 1, 0};
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clamp = rp.Pop<bool>();
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IPC::RequestBuilder rb = rp.MakeBuilder(1, 0);
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rb.Push(RESULT_SUCCESS);
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LOG_WARNING(Service_MIC, "(STUBBED) called, clamp={}", clamp);
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}
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void GetClamp(Kernel::HLERequestContext& ctx) {
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IPC::RequestParser rp{ctx, 0x0E, 0, 0};
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IPC::RequestBuilder rb = rp.MakeBuilder(2, 0);
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rb.Push(RESULT_SUCCESS);
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rb.Push<bool>(clamp);
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LOG_WARNING(Service_MIC, "(STUBBED) called");
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}
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void SetAllowShellClosed(Kernel::HLERequestContext& ctx) {
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IPC::RequestParser rp{ctx, 0x0F, 1, 0};
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allow_shell_closed = rp.Pop<bool>();
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IPC::RequestBuilder rb = rp.MakeBuilder(1, 0);
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rb.Push(RESULT_SUCCESS);
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LOG_WARNING(Service_MIC, "(STUBBED) called, allow_shell_closed={}", allow_shell_closed);
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}
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void SetClientVersion(Kernel::HLERequestContext& ctx) {
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IPC::RequestParser rp{ctx, 0x10, 1, 0};
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const u32 version = rp.Pop<u32>();
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LOG_WARNING(Service_MIC, "(STUBBED) called, version: 0x{:08X}", version);
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IPC::RequestBuilder rb = rp.MakeBuilder(1, 0);
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rb.Push(RESULT_SUCCESS);
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}
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void CreateMic() {
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std::unique_ptr<Frontend::Mic::Interface> new_mic;
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switch (Settings::values.mic_input_type) {
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case Settings::MicInputType::None:
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new_mic = std::make_unique<Frontend::Mic::NullMic>();
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break;
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case Settings::MicInputType::Real:
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#if HAVE_CUBEB
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new_mic = std::make_unique<AudioCore::CubebInput>();
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#else
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new_mic = std::make_unique<Frontend::Mic::NullMic>();
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#endif
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break;
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case Settings::MicInputType::Static:
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new_mic = std::make_unique<Frontend::Mic::StaticMic>();
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break;
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default:
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LOG_CRITICAL(Audio, "Mic type not found. Defaulting to null mic");
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new_mic = std::make_unique<Frontend::Mic::NullMic>();
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}
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// If theres already a mic, copy over any data to the new mic impl
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if (mic) {
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new_mic->SetGain(mic->GetGain());
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new_mic->SetPower(mic->GetPower());
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auto params = mic->GetParameters();
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if (mic->IsSampling()) {
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mic->StopSampling();
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new_mic->StartSampling(params);
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}
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}
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mic = std::move(new_mic);
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change_mic_impl_requested.store(false);
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}
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std::atomic<bool> change_mic_impl_requested = false;
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std::shared_ptr<Kernel::Event> buffer_full_event;
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Core::TimingEventType* buffer_write_event = nullptr;
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std::shared_ptr<Kernel::SharedMemory> shared_memory;
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u32 client_version = 0;
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bool allow_shell_closed = false;
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bool clamp = false;
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std::unique_ptr<Frontend::Mic::Interface> mic;
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Core::Timing& timing;
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State state{};
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};
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void MIC_U::MapSharedMem(Kernel::HLERequestContext& ctx) {
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impl->MapSharedMem(ctx);
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}
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void MIC_U::UnmapSharedMem(Kernel::HLERequestContext& ctx) {
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impl->UnmapSharedMem(ctx);
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}
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void MIC_U::StartSampling(Kernel::HLERequestContext& ctx) {
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impl->StartSampling(ctx);
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}
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void MIC_U::AdjustSampling(Kernel::HLERequestContext& ctx) {
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impl->AdjustSampling(ctx);
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}
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void MIC_U::StopSampling(Kernel::HLERequestContext& ctx) {
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impl->StopSampling(ctx);
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}
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void MIC_U::IsSampling(Kernel::HLERequestContext& ctx) {
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impl->IsSampling(ctx);
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}
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void MIC_U::GetBufferFullEvent(Kernel::HLERequestContext& ctx) {
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impl->GetBufferFullEvent(ctx);
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}
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void MIC_U::SetGain(Kernel::HLERequestContext& ctx) {
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impl->SetGain(ctx);
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}
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void MIC_U::GetGain(Kernel::HLERequestContext& ctx) {
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impl->GetGain(ctx);
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}
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void MIC_U::SetPower(Kernel::HLERequestContext& ctx) {
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impl->SetPower(ctx);
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}
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void MIC_U::GetPower(Kernel::HLERequestContext& ctx) {
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impl->GetPower(ctx);
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}
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void MIC_U::SetIirFilterMic(Kernel::HLERequestContext& ctx) {
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impl->SetIirFilterMic(ctx);
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}
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void MIC_U::SetClamp(Kernel::HLERequestContext& ctx) {
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impl->SetClamp(ctx);
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}
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void MIC_U::GetClamp(Kernel::HLERequestContext& ctx) {
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impl->GetClamp(ctx);
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}
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void MIC_U::SetAllowShellClosed(Kernel::HLERequestContext& ctx) {
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impl->SetAllowShellClosed(ctx);
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}
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void MIC_U::SetClientVersion(Kernel::HLERequestContext& ctx) {
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impl->SetClientVersion(ctx);
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}
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MIC_U::MIC_U(Core::System& system)
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: ServiceFramework{"mic:u", 1}, impl{std::make_unique<Impl>(system)} {
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static const FunctionInfo functions[] = {
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{0x00010042, &MIC_U::MapSharedMem, "MapSharedMem"},
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{0x00020000, &MIC_U::UnmapSharedMem, "UnmapSharedMem"},
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{0x00030140, &MIC_U::StartSampling, "StartSampling"},
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{0x00040040, &MIC_U::AdjustSampling, "AdjustSampling"},
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{0x00050000, &MIC_U::StopSampling, "StopSampling"},
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{0x00060000, &MIC_U::IsSampling, "IsSampling"},
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{0x00070000, &MIC_U::GetBufferFullEvent, "GetBufferFullEvent"},
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{0x00080040, &MIC_U::SetGain, "SetGain"},
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{0x00090000, &MIC_U::GetGain, "GetGain"},
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{0x000A0040, &MIC_U::SetPower, "SetPower"},
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{0x000B0000, &MIC_U::GetPower, "GetPower"},
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{0x000C0042, &MIC_U::SetIirFilterMic, "SetIirFilterMic"},
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{0x000D0040, &MIC_U::SetClamp, "SetClamp"},
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{0x000E0000, &MIC_U::GetClamp, "GetClamp"},
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{0x000F0040, &MIC_U::SetAllowShellClosed, "SetAllowShellClosed"},
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{0x00100040, &MIC_U::SetClientVersion, "SetClientVersion"},
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};
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impl->CreateMic();
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RegisterHandlers(functions);
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}
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MIC_U::~MIC_U() {
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impl->mic->StopSampling();
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}
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void MIC_U::ReloadMic() {
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impl->change_mic_impl_requested.store(true);
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}
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void ReloadMic(Core::System& system) {
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auto micu = system.ServiceManager().GetService<Service::MIC::MIC_U>("mic:u");
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if (!micu)
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return;
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micu->ReloadMic();
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}
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void InstallInterfaces(Core::System& system) {
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auto& service_manager = system.ServiceManager();
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std::make_shared<MIC_U>(system)->InstallAsService(service_manager);
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}
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} // namespace Service::MIC
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