Introduced EEPROM device

src/Common/EmuEEPROM.cpp

@@ -45,7 +45,7 @@ namespace xboxkrnl
 #include <shlobj.h> // For HANDLE, CreateFile, CreateFileMapping, MapViewOfFile
 
 #include "Cxbx.h" // For DbgPrintf
-#include "EmuEEPROM.h" // For EEPROMInfo, EEPROMInfos
+#include "EmuEEPROM.h" // For EEPROMInfo, EEPROMInfos, EEPROMDevice
 
 xboxkrnl::XBOX_EEPROM *EEPROM = nullptr; // Set using CxbxRestoreEEPROM()
 
@@ -153,3 +153,20 @@ xboxkrnl::XBOX_EEPROM *CxbxRestoreEEPROM(char *szFilePath_EEPROM_bin)
 
 	return pEEPROM;
 }
+
+// EEPROMDevice
+
+void EEPROMDevice::Init() {}
+
+void EEPROMDevice::Reset() {}
+
+void EEPROMDevice::QuickCommand(int read) {}
+uint8_t EEPROMDevice::ReceiveByte() { return 0;  }
+uint8_t EEPROMDevice::ReadByte(uint8_t command) { return *(((PBYTE)EEPROM) + command); }
+uint16_t EEPROMDevice::ReadWord(uint8_t command) { return *((PWORD)(((PBYTE)EEPROM) + command)); }
+int EEPROMDevice::ReadBlock(uint8_t command, uint8_t *data) { return 0; }
+
+void EEPROMDevice::SendByte(uint8_t data) {}
+void EEPROMDevice::WriteByte(uint8_t command, uint8_t value) { *((PWORD)(((PBYTE)EEPROM) + command)) = value; }
+void EEPROMDevice::WriteWord(uint8_t command, uint16_t value) { *((PWORD)(((PBYTE)EEPROM) + command)) = value; }
+void EEPROMDevice::WriteBlock(uint8_t command, uint8_t* data, int length) { memcpy(((PBYTE)EEPROM) + command, data, length); }

src/Common/EmuEEPROM.h

@@ -103,4 +103,31 @@ extern xboxkrnl::ULONG XboxFactoryGameRegion;
 }
 #endif
 
+#include "../CxbxKrnl/SMDevice.h"
+
+class EEPROMDevice : public SMDevice {
+public:
+	using SMDevice::SMDevice;
+
+	// SMDevice functions
+	void Init();
+	void Reset();
+
+	void QuickCommand(int read);
+	uint8_t ReceiveByte();
+	uint8_t ReadByte(uint8_t command);
+	uint16_t ReadWord(uint8_t command);
+	int ReadBlock(uint8_t command, uint8_t *data);
+
+	void SendByte(uint8_t data);
+	void WriteByte(uint8_t command, uint8_t value);
+	void WriteWord(uint8_t command, uint16_t value);
+	void WriteBlock(uint8_t command, uint8_t* data, int length);
+
+private:
+
+};
+
+extern EEPROMDevice* g_EEPROM;
+
 #endif // EMU_EEPROM_H

src/CxbxKrnl/CxbxKrnl.cpp

@@ -68,6 +68,7 @@ namespace xboxkrnl
 
 PCIBus* g_PCIBus;
 SMBus* g_SMBus;
+EEPROMDevice* g_EEPROM;
 
 /* prevent name collisions */
 namespace NtDll
@@ -1008,9 +1009,20 @@ __declspec(noreturn) void CxbxKrnlInit
 	EmuHLEIntercept(pXbeHeader);
 	SetupXboxDeviceTypes();
 
+#define SMBUS_SMC_SLAVE_ADDRESS 0x20 // = Write; Read = 0x21
+#define SMBUS_EEPROM_ADDRESS 0xA8 // = Write; Read = 0xA9
+#define SMBUS_TV_ENCODER_ID_CONEXANT 0x8A // = Write; Read = 08B
+#define SMBUS_TV_ENCODER_ID_FOCUS 0xD4 // = Write; Read = 0D5
+
 	// Init Hardware
 	g_PCIBus = new PCIBus();
 	g_SMBus = new SMBus();
+	g_EEPROM = new EEPROMDevice();
+	g_SMBus->ConnectDevice(SMBUS_EEPROM_ADDRESS, g_EEPROM);
+	// TODO : Handle other SMBUS Addresses, like PIC_ADDRESS, XCALIBUR_ADDRESS
+	// Resources : http://pablot.com/misc/fancontroller.cpp
+	// https://github.com/JayFoxRox/Chihiro-Launcher/blob/master/hook.h
+
 	g_PCIBus->ConnectDevice(PCI_DEVID(0, PCI_DEVFN(1, 1)), g_SMBus);
 
 	// Always initialise NV2A: We may need it for disabled HLE patches too!