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audio_core/lle: implement GetDspMemory and SetServiceToInterrupt

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This commit is contained in:
Weiyi Wang 2018-12-06 08:10:00 -05:00
parent df8aaee965
commit 9ab4e3c686
2 changed files with 59 additions and 0 deletions
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55
src/audio_core/lle/lle.cpp
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@ -5,6 +5,7 @@
#include "audio_core/lle/lle.h"
#include "common/assert.h"
#include "common/swap.h"
#include "core/hle/service/dsp/dsp_dsp.h"
#include "teakra/teakra.h"
namespace AudioCore {
@ -33,6 +34,9 @@ struct DspLle::Impl final {
Teakra::Teakra teakra;
u16 pipe_base_waddr = 0;
bool semaphore_signaled = false;
bool data_signaled = false;
static constexpr unsigned TeakraSlice = 20000;
void RunTeakraSlice() {
teakra.Run(TeakraSlice);
@ -178,6 +182,57 @@ void DspLle::PipeWrite(DspPipe pipe_number, const std::vector<u8>& buffer) {
impl->WritePipe(static_cast<u8>(pipe_number), buffer);
}
std::array<u8, Memory::DSP_RAM_SIZE>& DspLle::GetDspMemory() {
return impl->teakra.GetDspMemory();
}
void DspLle::SetServiceToInterrupt(std::weak_ptr<Service::DSP::DSP_DSP> dsp) {
impl->teakra.SetRecvDataHandler(0, [dsp]() {
if (auto locked = dsp.lock()) {
locked->SignalInterrupt(Service::DSP::DSP_DSP::InterruptType::Zero,
static_cast<DspPipe>(0));
}
});
impl->teakra.SetRecvDataHandler(1, [dsp]() {
if (auto locked = dsp.lock()) {
locked->SignalInterrupt(Service::DSP::DSP_DSP::InterruptType::One,
static_cast<DspPipe>(0));
}
});
auto ProcessPipeEvent = [this, dsp](bool event_from_data) {
auto& teakra = impl->teakra;
if (event_from_data) {
impl->data_signaled = true;
} else {
if ((teakra.GetSemaphore() & 0x8000) == 0)
return;
impl->semaphore_signaled = true;
}
if (impl->semaphore_signaled && impl->data_signaled) {
impl->semaphore_signaled = impl->data_signaled = false;
u16 slot = teakra.RecvData(2);
u16 side = slot % 2;
u16 pipe = slot / 2;
ASSERT(pipe < 16);
if (side != static_cast<u16>(PipeDirection::DSPtoCPU))
return;
if (pipe == 0) {
// pipe 0 is for debug. 3DS automatically drains this pipe and discards the data
impl->ReadPipe(pipe, impl->GetPipeReadableSize(pipe));
} else {
if (auto locked = dsp.lock()) {
locked->SignalInterrupt(Service::DSP::DSP_DSP::InterruptType::Pipe,
static_cast<DspPipe>(pipe));
}
}
}
};
impl->teakra.SetRecvDataHandler(2, [ProcessPipeEvent]() { ProcessPipeEvent(true); });
impl->teakra.SetSemaphoreHandler([ProcessPipeEvent]() { ProcessPipeEvent(false); });
}
DspLle::DspLle() : impl(std::make_unique<Impl>()) {}
DspLle::~DspLle() = default;

4
src/audio_core/lle/lle.h
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@ -20,6 +20,10 @@ public:
std::size_t GetPipeReadableSize(DspPipe pipe_number) const override;
void PipeWrite(DspPipe pipe_number, const std::vector<u8>& buffer) override;
std::array<u8, Memory::DSP_RAM_SIZE>& GetDspMemory() override;
void SetServiceToInterrupt(std::weak_ptr<Service::DSP::DSP_DSP> dsp) override;
private:
struct Impl;
friend struct Impl;