suyu/src/core/hle/service/dsp_dsp.cpp

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// 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.
#include "audio_core/hle/pipe.h"
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#include "common/logging/log.h"
#include "core/hle/kernel/event.h"
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#include "core/hle/service/dsp_dsp.h"
////////////////////////////////////////////////////////////////////////////////////////////////////
// Namespace DSP_DSP
namespace DSP_DSP {
static u32 read_pipe_count;
static Kernel::SharedPtr<Kernel::Event> semaphore_event;
struct PairHash {
template <typename T, typename U>
std::size_t operator()(const std::pair<T, U> &x) const {
// TODO(yuriks): Replace with better hash combining function.
return std::hash<T>()(x.first) ^ std::hash<U>()(x.second);
}
};
/// Map of (audio interrupt number, channel number) to Kernel::Events. See: RegisterInterruptEvents
static std::unordered_map<std::pair<u32, u32>, Kernel::SharedPtr<Kernel::Event>, PairHash> interrupt_events;
// DSP Interrupts:
// Interrupt #2 occurs every frame tick. Userland programs normally have a thread that's waiting
// for an interrupt event. Immediately after this interrupt event, userland normally updates the
// state in the next region and increments the relevant frame counter by two.
void SignalAllInterrupts() {
// HACK: The other interrupts have currently unknown purpose, we trigger them each tick in any case.
for (auto& interrupt_event : interrupt_events)
interrupt_event.second->Signal();
}
void SignalInterrupt(u32 interrupt, u32 channel) {
interrupt_events[std::make_pair(interrupt, channel)]->Signal();
}
/**
* DSP_DSP::ConvertProcessAddressFromDspDram service function
* Inputs:
* 1 : Address
* Outputs:
* 1 : Result of function, 0 on success, otherwise error code
* 2 : (inaddr << 1) + 0x1FF40000 (where 0x1FF00000 is the DSP RAM address)
*/
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static void ConvertProcessAddressFromDspDram(Service::Interface* self) {
u32* cmd_buff = Kernel::GetCommandBuffer();
u32 addr = cmd_buff[1];
cmd_buff[1] = 0; // No error
cmd_buff[2] = (addr << 1) + (Memory::DSP_RAM_VADDR + 0x40000);
LOG_TRACE(Service_DSP, "addr=0x%08X", addr);
}
/**
* DSP_DSP::LoadComponent service function
* Inputs:
* 1 : Size
* 2 : Unknown (observed only half word used)
* 3 : Unknown (observed only half word used)
* 4 : (size << 4) | 0xA
* 5 : Buffer address
* Outputs:
* 1 : Result of function, 0 on success, otherwise error code
* 2 : Component loaded, 0 on not loaded, 1 on loaded
*/
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static void LoadComponent(Service::Interface* self) {
u32* cmd_buff = Kernel::GetCommandBuffer();
u32 size = cmd_buff[1];
u32 unk1 = cmd_buff[2];
u32 unk2 = cmd_buff[3];
u32 new_size = cmd_buff[4];
u32 buffer = cmd_buff[5];
cmd_buff[1] = 0; // No error
cmd_buff[2] = 1; // Pretend that we actually loaded the DSP firmware
// TODO(bunnei): Implement real DSP firmware loading
LOG_WARNING(Service_DSP, "(STUBBED) called size=0x%X, unk1=0x%08X, unk2=0x%08X, new_size=0x%X, buffer=0x%08X",
size, unk1, unk2, new_size, buffer);
}
/**
* DSP_DSP::GetSemaphoreEventHandle service function
* Outputs:
* 1 : Result of function, 0 on success, otherwise error code
* 3 : Semaphore event handle
*/
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static void GetSemaphoreEventHandle(Service::Interface* self) {
u32* cmd_buff = Kernel::GetCommandBuffer();
cmd_buff[1] = RESULT_SUCCESS.raw; // No error
cmd_buff[3] = Kernel::g_handle_table.Create(semaphore_event).MoveFrom(); // Event handle
LOG_WARNING(Service_DSP, "(STUBBED) called");
}
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/**
* DSP_DSP::FlushDataCache service function
*
* This Function is a no-op, We aren't emulating the CPU cache any time soon.
*
* Inputs:
* 1 : Address
* 2 : Size
* 3 : Value 0, some descriptor for the KProcess Handle
* 4 : KProcess handle
* Outputs:
* 1 : Result of function, 0 on success, otherwise error code
*/
static void FlushDataCache(Service::Interface* self) {
u32* cmd_buff = Kernel::GetCommandBuffer();
u32 address = cmd_buff[1];
u32 size = cmd_buff[2];
u32 process = cmd_buff[4];
// TODO(purpasmart96): Verify return header on HW
cmd_buff[1] = RESULT_SUCCESS.raw; // No error
LOG_DEBUG(Service_DSP, "(STUBBED) called address=0x%08X, size=0x%X, process=0x%08X",
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address, size, process);
}
/**
* DSP_DSP::RegisterInterruptEvents service function
* Inputs:
* 1 : Interrupt Number
* 2 : Channel Number
* 4 : Interrupt event handle
* Outputs:
* 1 : Result of function, 0 on success, otherwise error code
*/
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static void RegisterInterruptEvents(Service::Interface* self) {
u32* cmd_buff = Kernel::GetCommandBuffer();
u32 interrupt = cmd_buff[1];
u32 channel = cmd_buff[2];
u32 event_handle = cmd_buff[4];
if (event_handle) {
auto evt = Kernel::g_handle_table.Get<Kernel::Event>(cmd_buff[4]);
if (evt) {
interrupt_events[std::make_pair(interrupt, channel)] = evt;
cmd_buff[1] = RESULT_SUCCESS.raw;
LOG_WARNING(Service_DSP, "Registered interrupt=%u, channel=%u, event_handle=0x%08X", interrupt, channel, event_handle);
} else {
cmd_buff[1] = -1;
LOG_ERROR(Service_DSP, "Invalid event handle! interrupt=%u, channel=%u, event_handle=0x%08X", interrupt, channel, event_handle);
}
} else {
interrupt_events.erase(std::make_pair(interrupt, channel));
LOG_WARNING(Service_DSP, "Unregistered interrupt=%u, channel=%u, event_handle=0x%08X", interrupt, channel, event_handle);
}
}
/**
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* DSP_DSP::SetSemaphore service function
* Inputs:
* 1 : Unknown (observed only half word used)
* Outputs:
* 1 : Result of function, 0 on success, otherwise error code
*/
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static void SetSemaphore(Service::Interface* self) {
u32* cmd_buff = Kernel::GetCommandBuffer();
cmd_buff[1] = 0; // No error
LOG_WARNING(Service_DSP, "(STUBBED) called");
}
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/**
* DSP_DSP::WriteProcessPipe service function
* Inputs:
* 1 : Channel
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* 2 : Size
* 3 : (size << 14) | 0x402
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* 4 : Buffer
* Outputs:
* 0 : Return header
* 1 : Result of function, 0 on success, otherwise error code
*/
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static void WriteProcessPipe(Service::Interface* self) {
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u32* cmd_buff = Kernel::GetCommandBuffer();
u32 channel = cmd_buff[1];
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u32 size = cmd_buff[2];
u32 buffer = cmd_buff[4];
if (IPC::StaticBufferDesc(size, 1) != cmd_buff[3]) {
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);
cmd_buff[1] = -1; // TODO
return;
}
if (!Memory::GetPointer(buffer)) {
LOG_ERROR(Service_DSP, "Invalid Buffer: channel=%u, size=0x%X, buffer=0x%08X", channel, size, buffer);
cmd_buff[1] = -1; // TODO
return;
}
std::vector<u8> message(size);
for (size_t i = 0; i < size; i++) {
message[i] = Memory::Read8(buffer + i);
}
DSP::HLE::PipeWrite(channel, message);
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cmd_buff[1] = RESULT_SUCCESS.raw; // No error
LOG_TRACE(Service_DSP, "channel=%u, size=0x%X, buffer=0x%08X", channel, size, buffer);
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}
/**
* DSP_DSP::ReadPipeIfPossible service function
* A pipe is a means of communication between the ARM11 and DSP that occurs on
* hardware by writing to/reading from the DSP registers at 0x10203000.
* Pipes are used for initialisation. See also DSP::HLE::PipeRead.
* Inputs:
* 1 : Pipe Number
* 2 : Unknown
* 3 : Size in bytes of read (observed only lower half word used)
* 0x41 : Virtual address to read from DSP pipe to in memory
* Outputs:
* 1 : Result of function, 0 on success, otherwise error code
* 2 : Number of bytes read from pipe
*/
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static void ReadPipeIfPossible(Service::Interface* self) {
u32* cmd_buff = Kernel::GetCommandBuffer();
u32 pipe = cmd_buff[1];
u32 unk2 = cmd_buff[2];
u32 size = cmd_buff[3] & 0xFFFF;// Lower 16 bits are size
VAddr addr = cmd_buff[0x41];
if (!Memory::GetPointer(addr)) {
LOG_ERROR(Service_DSP, "Invalid addr: pipe=0x%08X, unk2=0x%08X, size=0x%X, buffer=0x%08X", pipe, unk2, size, addr);
cmd_buff[1] = -1; // TODO
return;
}
std::vector<u8> response = DSP::HLE::PipeRead(pipe, size);
Memory::WriteBlock(addr, response.data(), response.size());
cmd_buff[1] = 0; // No error
cmd_buff[2] = (u32)response.size();
LOG_TRACE(Service_DSP, "pipe=0x%08X, unk2=0x%08X, size=0x%X, buffer=0x%08X", pipe, unk2, size, addr);
}
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/**
* DSP_DSP::SetSemaphoreMask service function
* Inputs:
* 1 : Mask
* Outputs:
* 1 : Result of function, 0 on success, otherwise error code
*/
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static void SetSemaphoreMask(Service::Interface* self) {
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u32* cmd_buff = Kernel::GetCommandBuffer();
u32 mask = cmd_buff[1];
cmd_buff[1] = RESULT_SUCCESS.raw; // No error
LOG_WARNING(Service_DSP, "(STUBBED) called mask=0x%08X", mask);
}
/**
* DSP_DSP::GetHeadphoneStatus service function
* Inputs:
* 1 : None
* Outputs:
* 1 : Result of function, 0 on success, otherwise error code
* 2 : The headphone status response, 0 = Not using headphones?,
* 1 = using headphones?
*/
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static void GetHeadphoneStatus(Service::Interface* self) {
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u32* cmd_buff = Kernel::GetCommandBuffer();
cmd_buff[1] = RESULT_SUCCESS.raw; // No error
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[] = {
{0x00010040, nullptr, "RecvData"},
{0x00020040, nullptr, "RecvDataIsReady"},
{0x00030080, nullptr, "SendData"},
{0x00040040, nullptr, "SendDataIsEmpty"},
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{0x000500C2, nullptr, "SendFifoEx"},
{0x000600C0, nullptr, "RecvFifoEx"},
{0x00070040, SetSemaphore, "SetSemaphore"},
{0x00080000, nullptr, "GetSemaphore"},
{0x00090040, nullptr, "ClearSemaphore"},
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{0x000A0040, nullptr, "MaskSemaphore"},
{0x000B0000, nullptr, "CheckSemaphoreRequest"},
{0x000C0040, ConvertProcessAddressFromDspDram, "ConvertProcessAddressFromDspDram"},
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{0x000D0082, WriteProcessPipe, "WriteProcessPipe"},
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{0x000E00C0, nullptr, "ReadPipe"},
{0x000F0080, nullptr, "GetPipeReadableSize"},
{0x001000C0, ReadPipeIfPossible, "ReadPipeIfPossible"},
{0x001100C2, LoadComponent, "LoadComponent"},
{0x00120000, nullptr, "UnloadComponent"},
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{0x00130082, FlushDataCache, "FlushDataCache"},
{0x00140082, nullptr, "InvalidateDCache"},
{0x00150082, RegisterInterruptEvents, "RegisterInterruptEvents"},
{0x00160000, GetSemaphoreEventHandle, "GetSemaphoreEventHandle"},
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{0x00170040, SetSemaphoreMask, "SetSemaphoreMask"},
{0x00180040, nullptr, "GetPhysicalAddress"},
{0x00190040, nullptr, "GetVirtualAddress"},
{0x001A0042, nullptr, "SetIirFilterI2S1_cmd1"},
{0x001B0042, nullptr, "SetIirFilterI2S1_cmd2"},
{0x001C0082, nullptr, "SetIirFilterEQ"},
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{0x001D00C0, nullptr, "ReadMultiEx_SPI2"},
{0x001E00C2, nullptr, "WriteMultiEx_SPI2"},
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{0x001F0000, GetHeadphoneStatus, "GetHeadphoneStatus"},
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{0x00200040, nullptr, "ForceHeadphoneOut"},
{0x00210000, nullptr, "GetIsDspOccupied"},
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};
////////////////////////////////////////////////////////////////////////////////////////////////////
// Interface class
Interface::Interface() {
semaphore_event = Kernel::Event::Create(RESETTYPE_ONESHOT, "DSP_DSP::semaphore_event");
read_pipe_count = 0;
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Register(FunctionTable);
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}
Interface::~Interface() {
semaphore_event = nullptr;
interrupt_events.clear();
}
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} // namespace