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311 lines
10 KiB
C++
311 lines
10 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 "core/hle/hle.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 = 0;
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static Kernel::SharedPtr<Kernel::Event> semaphore_event;
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static Kernel::SharedPtr<Kernel::Event> interrupt_event;
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void SignalInterrupt() {
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// TODO(bunnei): This is just a stub, it does not do anything other than signal to the emulated
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// application that a DSP interrupt occurred, without specifying which one. Since we do not
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// emulate the DSP yet (and how it works is largely unknown), this is a work around to get games
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// that check the DSP interrupt signal event to run. We should figure out the different types of
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// DSP interrupts, and trigger them at the appropriate times.
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if (interrupt_event != 0)
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interrupt_event->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_MEMORY_VADDR + 0x40000);
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LOG_WARNING(Service_DSP, "(STUBBED) called with address 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 : Parameter 0 (purpose unknown)
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* 2 : Parameter 1 (purpose unknown)
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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 param0 = cmd_buff[1];
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u32 param1 = cmd_buff[2];
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u32 event_handle = cmd_buff[4];
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auto evt = Kernel::g_handle_table.Get<Kernel::Event>(cmd_buff[4]);
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if (evt != nullptr) {
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interrupt_event = evt;
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cmd_buff[1] = 0; // No error
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} else {
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LOG_ERROR(Service_DSP, "called with invalid handle=%08X", cmd_buff[4]);
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// TODO(yuriks): An error should be returned from SendSyncRequest, not in the cmdbuf
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cmd_buff[1] = -1;
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}
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LOG_WARNING(Service_DSP, "(STUBBED) called param0=%u, param1=%u, event_handle=0x%08X", param0, param1, event_handle);
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}
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/**
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* DSP_DSP::WriteReg0x10 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 WriteReg0x10(Service::Interface* self) {
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u32* cmd_buff = Kernel::GetCommandBuffer();
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SignalInterrupt();
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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 : 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 number = cmd_buff[1];
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u32 size = cmd_buff[2];
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u32 new_size = cmd_buff[3];
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u32 buffer = cmd_buff[4];
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cmd_buff[1] = RESULT_SUCCESS.raw; // No error
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LOG_WARNING(Service_DSP, "(STUBBED) called number=%u, size=0x%X, new_size=0x%X, buffer=0x%08X",
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number, size, new_size, buffer);
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}
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/**
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* DSP_DSP::ReadPipeIfPossible service function
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* Inputs:
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* 1 : Unknown
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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 unk1 = 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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// Canned DSP responses that games expect. These were taken from HW by 3dmoo team.
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// TODO: Remove this hack :)
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static const std::array<u16, 16> canned_read_pipe = {
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0x000F, 0xBFFF, 0x9E8E, 0x8680, 0xA78E, 0x9430, 0x8400, 0x8540,
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0x948E, 0x8710, 0x8410, 0xA90E, 0xAA0E, 0xAACE, 0xAC4E, 0xAC58
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};
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u32 initial_size = read_pipe_count;
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for (unsigned offset = 0; offset < size; offset += sizeof(u16)) {
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if (read_pipe_count < canned_read_pipe.size()) {
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Memory::Write16(addr + offset, canned_read_pipe[read_pipe_count]);
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read_pipe_count++;
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} else {
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LOG_ERROR(Service_DSP, "canned read pipe log exceeded!");
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break;
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}
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}
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cmd_buff[1] = 0; // No error
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cmd_buff[2] = (read_pipe_count - initial_size) * sizeof(u16);
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LOG_WARNING(Service_DSP, "(STUBBED) called unk1=0x%08X, unk2=0x%08X, size=0x%X, buffer=0x%08X",
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unk1, 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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{0x00070040, WriteReg0x10, "WriteReg0x10"},
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{0x00080000, nullptr, "GetSemaphore"},
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{0x00090040, nullptr, "ClearSemaphore"},
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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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{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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{0x001F0000, GetHeadphoneStatus, "GetHeadphoneStatus"},
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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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interrupt_event = nullptr;
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read_pipe_count = 0;
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Register(FunctionTable);
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}
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} // namespace
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