OSDInit.h

#define ROMVER_MAX_LEN		16

int OSDInitROMVER(void);

#define CONFIG_BLOCK_SIZE	15

enum CONSOLE_REGION{
	CONSOLE_REGION_INVALID	= -1,
	CONSOLE_REGION_JAPAN	= 0,
	CONSOLE_REGION_USA,	//USA and Asia
	CONSOLE_REGION_EUROPE,
	CONSOLE_REGION_CHINA,

	CONSOLE_REGION_COUNT
};

enum OSD_REGION{
	OSD_REGION_INVALID	= -1,
	OSD_REGION_JAPAN	= 0,
	OSD_REGION_USA,
	OSD_REGION_EUROPE,
	OSD_REGION_CHINA,
	OSD_REGION_RUSSIA,
	OSD_REGION_KOREA,
	OSD_REGION_ASIA,

	OSD_REGION_COUNT
};

//Used to store the values, as obtained from the EEPROM/NVM
typedef struct {
	/** 0=enabled, 1=disabled */
/*00*/u32 spdifMode:1;
	/** 0=4:3, 1=fullscreen, 2=16:9 */
/*01*/u32 screenType:2;
	/** 0=rgb(scart), 1=component */
/*03*/u32 videoOutput:1;
	/** LANGUAGE_??? value */
/*04*/u32 language:5;
	/** Timezone minutes offset from GMT */
/*09*/u32 timezoneOffset:11;
	/** Timezone ID */
/*20*/u32 timezone:9;
	/** 0=standard(winter), 1=daylight savings(summer) */
/*29*/u32 daylightSaving:1;
	/** 0=24 hour, 1=12 hour */
/*30*/u32 timeFormat:1;

	/** 0=YYYYMMDD, 1=MMDDYYYY, 2=DDMMYYYY */
/*00*/u32 dateFormat:2;
	/** Remote Control On/Off option */
/*02*/u32 rcEnabled:1;
	/** Remote Control Game Function On/Off */
/*03*/u32 rcGameFunction:1;
	/** Whether the Remote Control is supported by the PlayStation 2. */
/*04*/u32 rcSupported:1;
	/** Whether the DVD player should have progressive scanning enabled. */
/*05*/u32 dvdpProgressive:1;
} OSDConfig2_t;

typedef struct {
	u8 data[CONFIG_BLOCK_SIZE];
	u8 padding;
} OSDConfig1_t;

//Structure of OSD Configuration block within EEPROM
typedef struct {
	union {
		//0x00-0x0E
		struct {
			u8 ps1drv;
			u8 unused[14];
		};
		u8 bytes[CONFIG_BLOCK_SIZE];
	} PS1;

	union {
		struct {
			//0x0F
			u8 spdifMode:1;
			u8 screenType:2;
			u8 videoOutput:1;
			u8 japLanguage:1;
			u8 extendedLanguage:1;
			u8 unused1:2;	//Neither set nor read anywhere.

			//0x10
			u8 language:5;
			u8 version:3;

			//0x11
			u8 timezoneOffsetHi:3;
			u8 daylightSaving:1;
			u8 timeFormat:1;
			u8 dateFormat:2;
			u8 osdInit:1;

			//0x12
			u8 timezoneOffsetLo;

			//0x13
			u8 timezoneHi:1;
			u8 unknownB13_01:3;	//Value is carried over
			u8 dvdpProgressive:1;
			u8 rcSupported:1;
			u8 rcGameFunction:1;
			u8 rcEnabled:1;

			//0x14
			u8 timezoneLo;

			//0x15-0x1E
			u8 unusedBytes[9];
		};
		
		u8 bytes[CONFIG_BLOCK_SIZE];
	} PS2;
} OSDConfigStore_t;

int OSDIsLanguageValid(int region, int language);	//Returns >= 0 if language is valid for use in the specified region.
int OSDGetConsoleRegion(void);						//Initializes and returns the console's region (CONSOLE_REGION).
void OSDInitSystemPaths(void);						//Initializes system directory names
int OSDGetDefaultLanguage(void);					//Returns the default language for the console
int OSDGetRegion(void);								//Initializes and returns the OSD region (OSD_REGION).
int OSDGetVideoMode(void);							//0 = NTSC, 1 = PAL

//MagicGate-related functions that are applicable to ROM v2.20 and later
int OSDGetPS1DRVRegion(char *region);				//Returns the MagicGate region letter for the PlayStation Driver (returns 0 on error)
int OSDGetDVDPlayerRegion(char *region);			//Returns the MagicGate region letter for the DVD Player (returns 0 on error)
int OSDGetMGRegion(void);							//Returns MagicGate region letter (returns '\0' on error)

//Low-level OSD configuration-management functions (Please use the functions in OSDConfig instead)
int OSDLoadConfigFromNVM(OSDConfig1_t *osdConfigPS1, OSDConfig2_t *osdConfigPS2);						//Load OSD configuration from NVRAM. Returns 0 on success.
int OSDSaveConfigToNVM(const OSDConfig1_t *osdConfigPS1, const OSDConfig2_t *osdConfigPS2, u8 osdInit);	//Save OSD configuration to NVRAM. Returns 0 on success.

//For retrieving various folder names
const char *OSDGetSystemExecFolder(void);
const char *OSDGetSystemDataFolder(void);
const char *OSDGetDVDPLExecFolder(void);
const char *OSDGetHistoryDataFolder(void);

//For compatibility with the homebrew SDK
#define sceMcInit mcInit
#define sceMcGetInfo mcGetInfo
#define sceMcOpen mcOpen
#define sceMcClose mcClose
#define sceMcSeek mcSeek
#define sceMcRead mcRead
#define sceMcWrite mcWrite
#define sceMcGetDir mcGetDir
#define sceMcMkDir mcMkDir
#define sceMcSetFileInfo mcSetFileInfo
#define sceMcDelete mcDelete
#define sceMcSync mcSync