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601 lines
20 KiB
C++
601 lines
20 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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#include <algorithm>
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#include <cinttypes>
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#include "audio_core/hle/pipe.h"
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#include "common/hash.h"
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#include "common/logging/log.h"
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#include "core/hle/kernel/event.h"
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#include "core/hle/service/dsp_dsp.h"
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using DspPipe = DSP::HLE::DspPipe;
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namespace Service {
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namespace DSP_DSP {
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static Kernel::SharedPtr<Kernel::Event> semaphore_event;
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/// There are three types of interrupts
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enum class InterruptType { Zero, One, Pipe };
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constexpr size_t NUM_INTERRUPT_TYPE = 3;
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class InterruptEvents final {
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public:
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void Signal(InterruptType type, DspPipe pipe) {
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Kernel::SharedPtr<Kernel::Event>& event = Get(type, pipe);
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if (event) {
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event->Signal();
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}
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}
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Kernel::SharedPtr<Kernel::Event>& Get(InterruptType type, DspPipe dsp_pipe) {
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switch (type) {
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case InterruptType::Zero:
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return zero;
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case InterruptType::One:
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return one;
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case InterruptType::Pipe: {
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const size_t pipe_index = static_cast<size_t>(dsp_pipe);
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ASSERT(pipe_index < DSP::HLE::NUM_DSP_PIPE);
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return pipe[pipe_index];
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}
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}
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UNREACHABLE_MSG("Invalid interrupt type = %zu", static_cast<size_t>(type));
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}
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bool HasTooManyEventsRegistered() const {
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// Actual service implementation only has 6 'slots' for interrupts.
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constexpr size_t max_number_of_interrupt_events = 6;
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size_t number =
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std::count_if(pipe.begin(), pipe.end(), [](const auto& evt) { return evt != nullptr; });
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if (zero != nullptr)
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number++;
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if (one != nullptr)
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number++;
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return number >= max_number_of_interrupt_events;
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}
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private:
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/// Currently unknown purpose
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Kernel::SharedPtr<Kernel::Event> zero = nullptr;
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/// Currently unknown purpose
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Kernel::SharedPtr<Kernel::Event> one = nullptr;
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/// Each DSP pipe has an associated interrupt
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std::array<Kernel::SharedPtr<Kernel::Event>, DSP::HLE::NUM_DSP_PIPE> pipe = {{}};
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};
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static InterruptEvents interrupt_events;
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// DSP Interrupts:
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// The audio-pipe interrupt occurs every frame tick. Userland programs normally have a thread
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// that's waiting for an interrupt event. Immediately after this interrupt event, userland
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// normally updates the state in the next region and increments the relevant frame counter by
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// two.
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void SignalPipeInterrupt(DspPipe pipe) {
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interrupt_events.Signal(InterruptType::Pipe, pipe);
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}
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/**
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* DSP_DSP::ConvertProcessAddressFromDspDram service function
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* Inputs:
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* 1 : Address
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* Outputs:
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* 1 : Result of function, 0 on success, otherwise error code
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* 2 : (inaddr << 1) + 0x1FF40000 (where 0x1FF00000 is the DSP RAM address)
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*/
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static void ConvertProcessAddressFromDspDram(Service::Interface* self) {
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u32* cmd_buff = Kernel::GetCommandBuffer();
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u32 addr = cmd_buff[1];
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cmd_buff[0] = IPC::MakeHeader(0xC, 2, 0);
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cmd_buff[1] = RESULT_SUCCESS.raw; // No error
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// TODO(merry): There is a per-region offset missing in this calculation (that seems to be
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// always zero).
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cmd_buff[2] = (addr << 1) + (Memory::DSP_RAM_VADDR + 0x40000);
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LOG_DEBUG(Service_DSP, "addr=0x%08X", addr);
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}
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/**
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* DSP_DSP::LoadComponent service function
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* Inputs:
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* 1 : Size
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* 2 : Program mask (observed only half word used)
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* 3 : Data mask (observed only half word used)
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* 4 : (size << 4) | 0xA
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* 5 : Buffer address
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* Outputs:
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* 1 : Result of function, 0 on success, otherwise error code
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* 2 : Component loaded, 0 on not loaded, 1 on loaded
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*/
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static void LoadComponent(Service::Interface* self) {
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u32* cmd_buff = Kernel::GetCommandBuffer();
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u32 size = cmd_buff[1];
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u32 prog_mask = cmd_buff[2];
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u32 data_mask = cmd_buff[3];
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u32 desc = cmd_buff[4];
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u32 buffer = cmd_buff[5];
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cmd_buff[0] = IPC::MakeHeader(0x11, 2, 2);
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cmd_buff[1] = RESULT_SUCCESS.raw; // No error
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cmd_buff[2] = 1; // Pretend that we actually loaded the DSP firmware
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cmd_buff[3] = desc;
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cmd_buff[4] = buffer;
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// TODO(bunnei): Implement real DSP firmware loading
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ASSERT(Memory::IsValidVirtualAddress(buffer));
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std::vector<u8> component_data(size);
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Memory::ReadBlock(buffer, component_data.data(), component_data.size());
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LOG_INFO(Service_DSP, "Firmware hash: %#" PRIx64,
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Common::ComputeHash64(component_data.data(), component_data.size()));
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// Some versions of the firmware have the location of DSP structures listed here.
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ASSERT(size > 0x37C);
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LOG_INFO(Service_DSP, "Structures hash: %#" PRIx64,
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Common::ComputeHash64(component_data.data() + 0x340, 60));
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LOG_WARNING(Service_DSP,
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"(STUBBED) called size=0x%X, prog_mask=0x%08X, data_mask=0x%08X, buffer=0x%08X",
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size, prog_mask, data_mask, buffer);
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}
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/**
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* DSP_DSP::GetSemaphoreEventHandle service function
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* Outputs:
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* 1 : Result of function, 0 on success, otherwise error code
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* 3 : Semaphore event handle
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*/
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static void GetSemaphoreEventHandle(Service::Interface* self) {
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u32* cmd_buff = Kernel::GetCommandBuffer();
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cmd_buff[0] = IPC::MakeHeader(0x16, 1, 2);
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cmd_buff[1] = RESULT_SUCCESS.raw; // No error
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// cmd_buff[2] not set
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cmd_buff[3] = Kernel::g_handle_table.Create(semaphore_event).MoveFrom(); // Event handle
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LOG_WARNING(Service_DSP, "(STUBBED) called");
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}
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/**
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* DSP_DSP::FlushDataCache service function
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*
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* This Function is a no-op, We aren't emulating the CPU cache any time soon.
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*
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* Inputs:
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* 1 : Address
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* 2 : Size
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* 3 : Value 0, some descriptor for the KProcess Handle
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* 4 : KProcess handle
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* Outputs:
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* 1 : Result of function, 0 on success, otherwise error code
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*/
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static void FlushDataCache(Service::Interface* self) {
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u32* cmd_buff = Kernel::GetCommandBuffer();
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u32 address = cmd_buff[1];
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u32 size = cmd_buff[2];
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u32 process = cmd_buff[4];
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cmd_buff[0] = IPC::MakeHeader(0x13, 1, 0);
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cmd_buff[1] = RESULT_SUCCESS.raw; // No error
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LOG_TRACE(Service_DSP, "called address=0x%08X, size=0x%X, process=0x%08X", address, size,
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process);
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}
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/**
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* DSP_DSP::RegisterInterruptEvents service function
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* Inputs:
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* 1 : Interrupt Type
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* 2 : Pipe Number
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* 4 : Interrupt event handle
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* Outputs:
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* 1 : Result of function, 0 on success, otherwise error code
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*/
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static void RegisterInterruptEvents(Service::Interface* self) {
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u32* cmd_buff = Kernel::GetCommandBuffer();
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u32 type_index = cmd_buff[1];
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u32 pipe_index = cmd_buff[2];
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u32 event_handle = cmd_buff[4];
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ASSERT_MSG(type_index < NUM_INTERRUPT_TYPE && pipe_index < DSP::HLE::NUM_DSP_PIPE,
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"Invalid type or pipe: type = %u, pipe = %u", type_index, pipe_index);
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InterruptType type = static_cast<InterruptType>(cmd_buff[1]);
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DspPipe pipe = static_cast<DspPipe>(cmd_buff[2]);
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cmd_buff[0] = IPC::MakeHeader(0x15, 1, 0);
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if (event_handle) {
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auto evt = Kernel::g_handle_table.Get<Kernel::Event>(cmd_buff[4]);
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if (!evt) {
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LOG_INFO(Service_DSP, "Invalid event handle! type=%u, pipe=%u, event_handle=0x%08X",
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type_index, pipe_index, event_handle);
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ASSERT(false); // TODO: This should really be handled at an IPC translation layer.
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}
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if (interrupt_events.HasTooManyEventsRegistered()) {
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LOG_INFO(Service_DSP, "Ran out of space to register interrupts (Attempted to register "
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"type=%u, pipe=%u, event_handle=0x%08X)",
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type_index, pipe_index, event_handle);
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cmd_buff[1] = ResultCode(ErrorDescription::InvalidResultValue, ErrorModule::DSP,
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ErrorSummary::OutOfResource, ErrorLevel::Status)
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.raw;
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return;
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}
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interrupt_events.Get(type, pipe) = evt;
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LOG_INFO(Service_DSP, "Registered type=%u, pipe=%u, event_handle=0x%08X", type_index,
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pipe_index, event_handle);
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cmd_buff[1] = RESULT_SUCCESS.raw;
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} else {
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interrupt_events.Get(type, pipe) = nullptr;
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LOG_INFO(Service_DSP, "Unregistered interrupt=%u, channel=%u, event_handle=0x%08X",
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type_index, pipe_index, event_handle);
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cmd_buff[1] = RESULT_SUCCESS.raw;
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}
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}
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/**
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* DSP_DSP::SetSemaphore service function
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* Inputs:
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* 1 : Unknown (observed only half word used)
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* Outputs:
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* 1 : Result of function, 0 on success, otherwise error code
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*/
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static void SetSemaphore(Service::Interface* self) {
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u32* cmd_buff = Kernel::GetCommandBuffer();
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cmd_buff[0] = IPC::MakeHeader(0x7, 1, 0);
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cmd_buff[1] = RESULT_SUCCESS.raw; // No error
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LOG_WARNING(Service_DSP, "(STUBBED) called");
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}
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/**
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* DSP_DSP::WriteProcessPipe service function
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* Inputs:
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* 1 : Pipe Number
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* 2 : Size
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* 3 : (size << 14) | 0x402
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* 4 : Buffer
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* Outputs:
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* 0 : Return header
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* 1 : Result of function, 0 on success, otherwise error code
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*/
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static void WriteProcessPipe(Service::Interface* self) {
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u32* cmd_buff = Kernel::GetCommandBuffer();
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u32 pipe_index = cmd_buff[1];
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u32 size = cmd_buff[2];
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u32 buffer = cmd_buff[4];
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DSP::HLE::DspPipe pipe = static_cast<DSP::HLE::DspPipe>(pipe_index);
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if (IPC::StaticBufferDesc(size, 1) != cmd_buff[3]) {
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LOG_ERROR(Service_DSP, "IPC static buffer descriptor failed validation (0x%X). pipe=%u, "
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"size=0x%X, buffer=0x%08X",
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cmd_buff[3], pipe_index, size, buffer);
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cmd_buff[0] = IPC::MakeHeader(0, 1, 0);
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cmd_buff[1] = IPC::ERR_INVALID_BUFFER_DESCRIPTOR.raw;
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return;
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}
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ASSERT_MSG(Memory::IsValidVirtualAddress(buffer),
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"Invalid Buffer: pipe=%u, size=0x%X, buffer=0x%08X", pipe, size, buffer);
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std::vector<u8> message(size);
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for (u32 i = 0; i < size; i++) {
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message[i] = Memory::Read8(buffer + i);
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}
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// This behaviour was confirmed by RE.
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// The likely reason for this is that games tend to pass in garbage at these bytes
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// because they read random bytes off the stack.
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switch (pipe) {
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case DSP::HLE::DspPipe::Audio:
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ASSERT(message.size() >= 4);
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message[2] = 0;
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message[3] = 0;
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break;
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case DSP::HLE::DspPipe::Binary:
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ASSERT(message.size() >= 8);
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message[4] = 1;
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message[5] = 0;
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message[6] = 0;
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message[7] = 0;
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break;
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}
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DSP::HLE::PipeWrite(pipe, message);
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cmd_buff[0] = IPC::MakeHeader(0xD, 1, 0);
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cmd_buff[1] = RESULT_SUCCESS.raw; // No error
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LOG_DEBUG(Service_DSP, "pipe=%u, size=0x%X, buffer=0x%08X", pipe_index, size, buffer);
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}
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/**
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* DSP_DSP::ReadPipeIfPossible service function
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* A pipe is a means of communication between the ARM11 and DSP that occurs on
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* hardware by writing to/reading from the DSP registers at 0x10203000.
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* Pipes are used for initialisation. See also DSP::HLE::PipeRead.
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* Inputs:
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* 1 : Pipe Number
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* 2 : Unknown
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* 3 : Size in bytes of read (observed only lower half word used)
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* 0x41 : Virtual address of memory buffer to write pipe contents to
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* Outputs:
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* 1 : Result of function, 0 on success, otherwise error code
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* 2 : Number of bytes read from pipe
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*/
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static void ReadPipeIfPossible(Service::Interface* self) {
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u32* cmd_buff = Kernel::GetCommandBuffer();
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u32 pipe_index = cmd_buff[1];
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u32 unknown = cmd_buff[2];
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u32 size = cmd_buff[3] & 0xFFFF; // Lower 16 bits are size
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VAddr addr = cmd_buff[0x41];
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DSP::HLE::DspPipe pipe = static_cast<DSP::HLE::DspPipe>(pipe_index);
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ASSERT_MSG(Memory::IsValidVirtualAddress(addr),
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"Invalid addr: pipe=0x%08X, unknown=0x%08X, size=0x%X, buffer=0x%08X", pipe, unknown,
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size, addr);
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cmd_buff[0] = IPC::MakeHeader(0x10, 1, 2);
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cmd_buff[1] = RESULT_SUCCESS.raw; // No error
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if (DSP::HLE::GetPipeReadableSize(pipe) >= size) {
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std::vector<u8> response = DSP::HLE::PipeRead(pipe, size);
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Memory::WriteBlock(addr, response.data(), response.size());
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cmd_buff[2] = static_cast<u32>(response.size());
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} else {
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cmd_buff[2] = 0; // Return no data
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}
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cmd_buff[3] = IPC::StaticBufferDesc(size, 0);
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cmd_buff[4] = addr;
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LOG_DEBUG(Service_DSP,
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"pipe=%u, unknown=0x%08X, size=0x%X, buffer=0x%08X, return cmd_buff[2]=0x%08X",
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pipe_index, unknown, size, addr, cmd_buff[2]);
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}
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/**
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* DSP_DSP::ReadPipe service function
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* Inputs:
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* 1 : Pipe Number
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* 2 : Unknown
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* 3 : Size in bytes of read (observed only lower half word used)
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* 0x41 : Virtual address of memory buffer to write pipe contents to
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* Outputs:
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* 1 : Result of function, 0 on success, otherwise error code
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* 2 : Number of bytes read from pipe
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*/
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static void ReadPipe(Service::Interface* self) {
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u32* cmd_buff = Kernel::GetCommandBuffer();
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u32 pipe_index = cmd_buff[1];
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u32 unknown = cmd_buff[2];
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u32 size = cmd_buff[3] & 0xFFFF; // Lower 16 bits are size
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VAddr addr = cmd_buff[0x41];
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DSP::HLE::DspPipe pipe = static_cast<DSP::HLE::DspPipe>(pipe_index);
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ASSERT_MSG(Memory::IsValidVirtualAddress(addr),
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"Invalid addr: pipe=0x%08X, unknown=0x%08X, size=0x%X, buffer=0x%08X", pipe, unknown,
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size, addr);
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if (DSP::HLE::GetPipeReadableSize(pipe) >= size) {
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std::vector<u8> response = DSP::HLE::PipeRead(pipe, size);
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Memory::WriteBlock(addr, response.data(), response.size());
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cmd_buff[0] = IPC::MakeHeader(0xE, 2, 2);
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cmd_buff[1] = RESULT_SUCCESS.raw; // No error
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cmd_buff[2] = static_cast<u32>(response.size());
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cmd_buff[3] = IPC::StaticBufferDesc(size, 0);
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cmd_buff[4] = addr;
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} else {
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// No more data is in pipe. Hardware hangs in this case; this should never happen.
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UNREACHABLE();
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}
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LOG_DEBUG(Service_DSP,
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"pipe=%u, unknown=0x%08X, size=0x%X, buffer=0x%08X, return cmd_buff[2]=0x%08X",
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pipe_index, unknown, size, addr, cmd_buff[2]);
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}
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/**
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* DSP_DSP::GetPipeReadableSize service function
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* Inputs:
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* 1 : Pipe Number
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* 2 : Unknown
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* Outputs:
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* 1 : Result of function, 0 on success, otherwise error code
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* 2 : Number of bytes readable from pipe
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*/
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static void GetPipeReadableSize(Service::Interface* self) {
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u32* cmd_buff = Kernel::GetCommandBuffer();
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u32 pipe_index = cmd_buff[1];
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u32 unknown = cmd_buff[2];
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DSP::HLE::DspPipe pipe = static_cast<DSP::HLE::DspPipe>(pipe_index);
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cmd_buff[0] = IPC::MakeHeader(0xF, 2, 0);
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cmd_buff[1] = RESULT_SUCCESS.raw; // No error
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cmd_buff[2] = static_cast<u32>(DSP::HLE::GetPipeReadableSize(pipe));
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LOG_DEBUG(Service_DSP, "pipe=%u, unknown=0x%08X, return cmd_buff[2]=0x%08X", pipe_index,
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unknown, cmd_buff[2]);
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}
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/**
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* DSP_DSP::SetSemaphoreMask service function
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* Inputs:
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* 1 : Mask
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* Outputs:
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* 1 : Result of function, 0 on success, otherwise error code
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*/
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static void SetSemaphoreMask(Service::Interface* self) {
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u32* cmd_buff = Kernel::GetCommandBuffer();
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u32 mask = cmd_buff[1];
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cmd_buff[0] = IPC::MakeHeader(0x17, 1, 0);
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cmd_buff[1] = RESULT_SUCCESS.raw; // No error
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LOG_WARNING(Service_DSP, "(STUBBED) called mask=0x%08X", mask);
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}
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/**
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* DSP_DSP::GetHeadphoneStatus service function
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* Inputs:
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* 1 : None
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* Outputs:
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* 1 : Result of function, 0 on success, otherwise error code
|
|
* 2 : The headphone status response, 0 = Not using headphones?,
|
|
* 1 = using headphones?
|
|
*/
|
|
static void GetHeadphoneStatus(Service::Interface* self) {
|
|
u32* cmd_buff = Kernel::GetCommandBuffer();
|
|
|
|
cmd_buff[0] = IPC::MakeHeader(0x1F, 2, 0);
|
|
cmd_buff[1] = RESULT_SUCCESS.raw; // No error
|
|
cmd_buff[2] = 0; // Not using headphones
|
|
|
|
LOG_DEBUG(Service_DSP, "called");
|
|
}
|
|
|
|
/**
|
|
* DSP_DSP::RecvData service function
|
|
* This function reads a value out of a DSP register.
|
|
* Inputs:
|
|
* 1 : Register Number
|
|
* Outputs:
|
|
* 1 : Result of function, 0 on success, otherwise error code
|
|
* 2 : Value in the register
|
|
* Notes:
|
|
* This function has only been observed being called with a register number of 0.
|
|
*/
|
|
static void RecvData(Service::Interface* self) {
|
|
u32* cmd_buff = Kernel::GetCommandBuffer();
|
|
|
|
u32 register_number = cmd_buff[1];
|
|
|
|
ASSERT_MSG(register_number == 0, "Unknown register_number %u", register_number);
|
|
|
|
// Application reads this after requesting DSP shutdown, to verify the DSP has indeed shutdown
|
|
// or slept.
|
|
|
|
cmd_buff[0] = IPC::MakeHeader(0x1, 2, 0);
|
|
cmd_buff[1] = RESULT_SUCCESS.raw;
|
|
switch (DSP::HLE::GetDspState()) {
|
|
case DSP::HLE::DspState::On:
|
|
cmd_buff[2] = 0;
|
|
break;
|
|
case DSP::HLE::DspState::Off:
|
|
case DSP::HLE::DspState::Sleeping:
|
|
cmd_buff[2] = 1;
|
|
break;
|
|
default:
|
|
UNREACHABLE();
|
|
break;
|
|
}
|
|
|
|
LOG_DEBUG(Service_DSP, "register_number=%u", register_number);
|
|
}
|
|
|
|
/**
|
|
* DSP_DSP::RecvDataIsReady service function
|
|
* This function checks whether a DSP register is ready to be read.
|
|
* Inputs:
|
|
* 1 : Register Number
|
|
* Outputs:
|
|
* 1 : Result of function, 0 on success, otherwise error code
|
|
* 2 : non-zero == ready
|
|
* Note:
|
|
* This function has only been observed being called with a register number of 0.
|
|
*/
|
|
static void RecvDataIsReady(Service::Interface* self) {
|
|
u32* cmd_buff = Kernel::GetCommandBuffer();
|
|
|
|
u32 register_number = cmd_buff[1];
|
|
|
|
ASSERT_MSG(register_number == 0, "Unknown register_number %u", register_number);
|
|
|
|
cmd_buff[0] = IPC::MakeHeader(0x2, 2, 0);
|
|
cmd_buff[1] = RESULT_SUCCESS.raw;
|
|
cmd_buff[2] = 1; // Ready to read
|
|
|
|
LOG_DEBUG(Service_DSP, "register_number=%u", register_number);
|
|
}
|
|
|
|
const Interface::FunctionInfo FunctionTable[] = {
|
|
{0x00010040, RecvData, "RecvData"},
|
|
{0x00020040, RecvDataIsReady, "RecvDataIsReady"},
|
|
{0x00030080, nullptr, "SendData"},
|
|
{0x00040040, nullptr, "SendDataIsEmpty"},
|
|
{0x000500C2, nullptr, "SendFifoEx"},
|
|
{0x000600C0, nullptr, "RecvFifoEx"},
|
|
{0x00070040, SetSemaphore, "SetSemaphore"},
|
|
{0x00080000, nullptr, "GetSemaphore"},
|
|
{0x00090040, nullptr, "ClearSemaphore"},
|
|
{0x000A0040, nullptr, "MaskSemaphore"},
|
|
{0x000B0000, nullptr, "CheckSemaphoreRequest"},
|
|
{0x000C0040, ConvertProcessAddressFromDspDram, "ConvertProcessAddressFromDspDram"},
|
|
{0x000D0082, WriteProcessPipe, "WriteProcessPipe"},
|
|
{0x000E00C0, ReadPipe, "ReadPipe"},
|
|
{0x000F0080, GetPipeReadableSize, "GetPipeReadableSize"},
|
|
{0x001000C0, ReadPipeIfPossible, "ReadPipeIfPossible"},
|
|
{0x001100C2, LoadComponent, "LoadComponent"},
|
|
{0x00120000, nullptr, "UnloadComponent"},
|
|
{0x00130082, FlushDataCache, "FlushDataCache"},
|
|
{0x00140082, nullptr, "InvalidateDCache"},
|
|
{0x00150082, RegisterInterruptEvents, "RegisterInterruptEvents"},
|
|
{0x00160000, GetSemaphoreEventHandle, "GetSemaphoreEventHandle"},
|
|
{0x00170040, SetSemaphoreMask, "SetSemaphoreMask"},
|
|
{0x00180040, nullptr, "GetPhysicalAddress"},
|
|
{0x00190040, nullptr, "GetVirtualAddress"},
|
|
{0x001A0042, nullptr, "SetIirFilterI2S1_cmd1"},
|
|
{0x001B0042, nullptr, "SetIirFilterI2S1_cmd2"},
|
|
{0x001C0082, nullptr, "SetIirFilterEQ"},
|
|
{0x001D00C0, nullptr, "ReadMultiEx_SPI2"},
|
|
{0x001E00C2, nullptr, "WriteMultiEx_SPI2"},
|
|
{0x001F0000, GetHeadphoneStatus, "GetHeadphoneStatus"},
|
|
{0x00200040, nullptr, "ForceHeadphoneOut"},
|
|
{0x00210000, nullptr, "GetIsDspOccupied"},
|
|
};
|
|
|
|
////////////////////////////////////////////////////////////////////////////////////////////////////
|
|
// Interface class
|
|
|
|
Interface::Interface() {
|
|
semaphore_event = Kernel::Event::Create(Kernel::ResetType::OneShot, "DSP_DSP::semaphore_event");
|
|
interrupt_events = {};
|
|
|
|
Register(FunctionTable);
|
|
}
|
|
|
|
Interface::~Interface() {
|
|
semaphore_event = nullptr;
|
|
interrupt_events = {};
|
|
}
|
|
|
|
} // namespace DSP_DSP
|
|
} // namespace Service
|