8b00954ec7
This commit: * Adds a new subproject, audio_core. * Defines structures that exist in DSP shared memory. * Hooks up various other parts of the emulator into audio core. This sets the foundation for a later HLE DSP implementation.
351 lines
12 KiB
C++
351 lines
12 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 "audio_core/hle/pipe.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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////////////////////////////////////////////////////////////////////////////////////////////////////
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// Namespace DSP_DSP
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namespace DSP_DSP {
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static u32 read_pipe_count;
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static Kernel::SharedPtr<Kernel::Event> semaphore_event;
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struct PairHash {
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template <typename T, typename U>
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std::size_t operator()(const std::pair<T, U> &x) const {
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// TODO(yuriks): Replace with better hash combining function.
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return std::hash<T>()(x.first) ^ std::hash<U>()(x.second);
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}
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};
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/// Map of (audio interrupt number, channel number) to Kernel::Events. See: RegisterInterruptEvents
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static std::unordered_map<std::pair<u32, u32>, Kernel::SharedPtr<Kernel::Event>, PairHash> interrupt_events;
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// DSP Interrupts:
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// Interrupt #2 occurs every frame tick. Userland programs normally have a thread that's waiting
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// for an interrupt event. Immediately after this interrupt event, userland normally updates the
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// state in the next region and increments the relevant frame counter by two.
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void SignalAllInterrupts() {
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// HACK: The other interrupts have currently unknown purpose, we trigger them each tick in any case.
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for (auto& interrupt_event : interrupt_events)
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interrupt_event.second->Signal();
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}
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void SignalInterrupt(u32 interrupt, u32 channel) {
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interrupt_events[std::make_pair(interrupt, channel)]->Signal();
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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[1] = 0; // No error
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cmd_buff[2] = (addr << 1) + (Memory::DSP_RAM_VADDR + 0x40000);
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LOG_TRACE(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 : Unknown (observed only half word used)
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* 3 : Unknown (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 unk1 = cmd_buff[2];
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u32 unk2 = cmd_buff[3];
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u32 new_size = cmd_buff[4];
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u32 buffer = cmd_buff[5];
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cmd_buff[1] = 0; // No error
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cmd_buff[2] = 1; // Pretend that we actually loaded the DSP firmware
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// TODO(bunnei): Implement real DSP firmware loading
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LOG_WARNING(Service_DSP, "(STUBBED) called size=0x%X, unk1=0x%08X, unk2=0x%08X, new_size=0x%X, buffer=0x%08X",
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size, unk1, unk2, new_size, 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[1] = RESULT_SUCCESS.raw; // No error
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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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// TODO(purpasmart96): Verify return header on HW
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cmd_buff[1] = RESULT_SUCCESS.raw; // No error
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LOG_DEBUG(Service_DSP, "(STUBBED) called address=0x%08X, size=0x%X, process=0x%08X",
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address, size, 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 Number
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* 2 : Channel 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 interrupt = cmd_buff[1];
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u32 channel = cmd_buff[2];
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u32 event_handle = cmd_buff[4];
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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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interrupt_events[std::make_pair(interrupt, channel)] = evt;
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cmd_buff[1] = RESULT_SUCCESS.raw;
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LOG_WARNING(Service_DSP, "Registered interrupt=%u, channel=%u, event_handle=0x%08X", interrupt, channel, event_handle);
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} else {
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cmd_buff[1] = -1;
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LOG_ERROR(Service_DSP, "Invalid event handle! interrupt=%u, channel=%u, event_handle=0x%08X", interrupt, channel, event_handle);
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}
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} else {
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interrupt_events.erase(std::make_pair(interrupt, channel));
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LOG_WARNING(Service_DSP, "Unregistered interrupt=%u, channel=%u, event_handle=0x%08X", interrupt, channel, event_handle);
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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[1] = 0; // 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 : Channel
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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 channel = 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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if (IPC::StaticBufferDesc(size, 1) != cmd_buff[3]) {
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LOG_ERROR(Service_DSP, "IPC static buffer descriptor failed validation (0x%X). channel=%u, size=0x%X, buffer=0x%08X", cmd_buff[3], channel, size, buffer);
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cmd_buff[1] = -1; // TODO
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return;
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}
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if (!Memory::GetPointer(buffer)) {
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LOG_ERROR(Service_DSP, "Invalid Buffer: channel=%u, size=0x%X, buffer=0x%08X", channel, size, buffer);
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cmd_buff[1] = -1; // TODO
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return;
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}
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std::vector<u8> message(size);
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for (size_t i = 0; i < size; i++) {
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message[i] = Memory::Read8(buffer + i);
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}
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DSP::HLE::PipeWrite(channel, message);
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cmd_buff[1] = RESULT_SUCCESS.raw; // No error
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LOG_TRACE(Service_DSP, "channel=%u, size=0x%X, buffer=0x%08X", channel, 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 to read from DSP pipe to in memory
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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 = cmd_buff[1];
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u32 unk2 = 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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if (!Memory::GetPointer(addr)) {
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LOG_ERROR(Service_DSP, "Invalid addr: pipe=0x%08X, unk2=0x%08X, size=0x%X, buffer=0x%08X", pipe, unk2, size, addr);
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cmd_buff[1] = -1; // TODO
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return;
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}
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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[1] = 0; // No error
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cmd_buff[2] = (u32)response.size();
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LOG_TRACE(Service_DSP, "pipe=0x%08X, unk2=0x%08X, size=0x%X, buffer=0x%08X", pipe, unk2, size, addr);
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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[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
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* 2 : The headphone status response, 0 = Not using headphones?,
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* 1 = using headphones?
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*/
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static void GetHeadphoneStatus(Service::Interface* self) {
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u32* cmd_buff = Kernel::GetCommandBuffer();
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cmd_buff[1] = RESULT_SUCCESS.raw; // No error
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cmd_buff[2] = 0; // Not using headphones?
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LOG_DEBUG(Service_DSP, "(STUBBED) called");
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}
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const Interface::FunctionInfo FunctionTable[] = {
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{0x00010040, nullptr, "RecvData"},
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{0x00020040, nullptr, "RecvDataIsReady"},
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{0x00030080, nullptr, "SendData"},
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{0x00040040, nullptr, "SendDataIsEmpty"},
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{0x000500C2, nullptr, "SendFifoEx"},
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{0x000600C0, nullptr, "RecvFifoEx"},
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{0x00070040, SetSemaphore, "SetSemaphore"},
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{0x00080000, nullptr, "GetSemaphore"},
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{0x00090040, nullptr, "ClearSemaphore"},
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{0x000A0040, nullptr, "MaskSemaphore"},
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{0x000B0000, nullptr, "CheckSemaphoreRequest"},
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{0x000C0040, ConvertProcessAddressFromDspDram, "ConvertProcessAddressFromDspDram"},
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{0x000D0082, WriteProcessPipe, "WriteProcessPipe"},
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{0x000E00C0, nullptr, "ReadPipe"},
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{0x000F0080, nullptr, "GetPipeReadableSize"},
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{0x001000C0, ReadPipeIfPossible, "ReadPipeIfPossible"},
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{0x001100C2, LoadComponent, "LoadComponent"},
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{0x00120000, nullptr, "UnloadComponent"},
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{0x00130082, FlushDataCache, "FlushDataCache"},
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{0x00140082, nullptr, "InvalidateDCache"},
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{0x00150082, RegisterInterruptEvents, "RegisterInterruptEvents"},
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{0x00160000, GetSemaphoreEventHandle, "GetSemaphoreEventHandle"},
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{0x00170040, SetSemaphoreMask, "SetSemaphoreMask"},
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{0x00180040, nullptr, "GetPhysicalAddress"},
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{0x00190040, nullptr, "GetVirtualAddress"},
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{0x001A0042, nullptr, "SetIirFilterI2S1_cmd1"},
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{0x001B0042, nullptr, "SetIirFilterI2S1_cmd2"},
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{0x001C0082, nullptr, "SetIirFilterEQ"},
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{0x001D00C0, nullptr, "ReadMultiEx_SPI2"},
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{0x001E00C2, nullptr, "WriteMultiEx_SPI2"},
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{0x001F0000, GetHeadphoneStatus, "GetHeadphoneStatus"},
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{0x00200040, nullptr, "ForceHeadphoneOut"},
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{0x00210000, nullptr, "GetIsDspOccupied"},
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};
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////////////////////////////////////////////////////////////////////////////////////////////////////
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// Interface class
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Interface::Interface() {
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semaphore_event = Kernel::Event::Create(RESETTYPE_ONESHOT, "DSP_DSP::semaphore_event");
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read_pipe_count = 0;
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Register(FunctionTable);
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}
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Interface::~Interface() {
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semaphore_event = nullptr;
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interrupt_events.clear();
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}
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} // namespace
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