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PAD: Basic support for digital controllers

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This commit is contained in:
Connor McLaughlin
2019-09-20 16:47:41 +10:00
parent d84bffead1
commit 8cd75a4937
16 changed files with 552 additions and 4 deletions
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10
src/pse/bus.h
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@ -15,6 +15,7 @@ class DMA;
class InterruptController;
class GPU;
class CDROM;
class Pad;
class System;
class Bus
@ -23,7 +24,7 @@ public:
Bus();
~Bus();
bool Initialize(CPU::Core* cpu, DMA* dma, InterruptController* interrupt_controller, GPU* gpu, CDROM* cdrom);
bool Initialize(CPU::Core* cpu, DMA* dma, InterruptController* interrupt_controller, GPU* gpu, CDROM* cdrom, Pad* pad);
void Reset();
bool DoState(StateWrapper& sw);
@ -40,6 +41,9 @@ public:
void PatchBIOS(u32 address, u32 value, u32 mask = UINT32_C(0xFFFFFFFF));
private:
static constexpr u32 PAD_BASE = 0x1F801040;
static constexpr u32 PAD_SIZE = 0x10;
static constexpr u32 PAD_MASK = PAD_SIZE - 1;
static constexpr u32 INTERRUPT_CONTROLLER_BASE = 0x1F801070;
static constexpr u32 INTERRUPT_CONTROLLER_SIZE = 0x08;
static constexpr u32 INTERRUPT_CONTROLLER_MASK = INTERRUPT_CONTROLLER_SIZE - 1;
@ -75,6 +79,9 @@ private:
bool ReadExpansionRegion2(MemoryAccessSize size, u32 offset, u32& value);
bool WriteExpansionRegion2(MemoryAccessSize size, u32 offset, u32 value);
bool DoReadPad(MemoryAccessSize size, u32 offset, u32& value);
bool DoWritePad(MemoryAccessSize size, u32 offset, u32 value);
bool DoReadCDROM(MemoryAccessSize size, u32 offset, u32& value);
bool DoWriteCDROM(MemoryAccessSize size, u32 offset, u32 value);
@ -95,6 +102,7 @@ private:
InterruptController* m_interrupt_controller = nullptr;
GPU* m_gpu = nullptr;
CDROM* m_cdrom = nullptr;
Pad* m_pad = nullptr;
std::array<u8, 2097152> m_ram{}; // 2MB RAM
std::array<u8, 524288> m_bios{}; // 512K BIOS ROM