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https://github.com/emu-russia/pureikyubu.git
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116 lines
3.4 KiB
C++
116 lines
3.4 KiB
C++
// hardware init/update code
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// IMPORTANT: whole HW should use physical CPU addressing, not effective!
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#include "pch.h"
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using namespace Debug;
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namespace Flipper
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{
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Flipper* HW;
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DSP::Dsp16* DSP; // Instance of dsp core
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GX::GXCore* Gx; // Instance of GX processor
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// This thread acts as the HWUpdate of Dolwin 0.10.
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// Previously, an HWUpdate call occurred after each Gekko instruction (or so).
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// This was tied only to update VI, SI and AI.
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// After switching to multitasking, leave the old HWUpdate update mechanism, will be gradually replaced by other threads of different Flipper components.
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void Flipper::HwUpdateThread(void* Parameter)
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{
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Flipper* flipper = (Flipper*)Parameter;
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int64_t ticks = Gekko::Gekko->GetTicks();
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if (ticks < flipper->hwUpdateTbrValue)
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{
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return;
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}
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flipper->hwUpdateTbrValue = ticks + Flipper::ticksToHwUpdate;
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flipper->Update();
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}
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Flipper::Flipper(HWConfig* config)
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{
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Report(Channel::Info,
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"-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-\n"
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"Hardware Initialization.\n"
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"-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-\n\n"
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);
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MIOpen(config); // memory protection and 1T-SRAM interface
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VIOpen(config); // video (TV)
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CP_PEOpen(); // Command Processor & PixelEngin
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AIOpen(config); // audio (AID and AIS)
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AROpen(); // aux. memory (ARAM)
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EIOpen(config); // expansion interface (EXI)
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DIOpen(); // disk
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SIOpen(); // GC controllers
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PIOpen(config); // interrupts, console regs
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DSP->core->HardReset();
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// Load IROM.
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auto iromImage = Util::FileLoad(config->DspIromFilename);
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if (DSP->LoadIrom(iromImage))
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{
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Report(Channel::DSP, "Loaded DSP IROM: %s\n", Util::WstringToString(config->DspIromFilename).c_str());
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}
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else
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{
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Report(Channel::Norm, "Failed to load DSP IROM: %s\n", Util::WstringToString(config->DspIromFilename).c_str());
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}
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// Load DROM.
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auto dromImage = Util::FileLoad(config->DspDromFilename);
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if (DSP->LoadDrom(dromImage))
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{
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Report(Channel::DSP, "Loaded DSP DROM: %s\n", Util::WstringToString(config->DspDromFilename).c_str());
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}
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else
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{
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Report(Channel::Norm, "Failed to load DSP DROM\n", Util::WstringToString(config->DspDromFilename).c_str());
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}
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Report(Channel::Norm, "\n");
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Gx->Open();
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GXOpen(config, mi.ram);
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PADOpen();
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JDI::Hub.AddNode(HW_JDI_JSON, hw_init_handlers);
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hwUpdateThread = new Thread(HwUpdateThread, false, this, "HW");
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}
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Flipper::~Flipper()
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{
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delete hwUpdateThread;
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JDI::Hub.RemoveNode(HW_JDI_JSON);
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DSP->Suspend();
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CP_PEClose();
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AIClose();
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ARClose(); // release ARAM
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EIClose(); // take care about closing of memcards and BBA
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VIClose(); // close GDI (if opened)
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DIClose(); // release streaming buffer
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MIClose();
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PADClose();
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GXClose();
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Gx->Close();
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}
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void Flipper::Update()
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{
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// update joypads and video
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VIUpdate();
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SIPoll();
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}
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}
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