#ifndef RVL_SDK_DVD_H
#define RVL_SDK_DVD_H
#include "common.h"
#ifdef __cplusplus
extern "C" {
#endif

// OS sets MSB to signal that the device code was successfully read
#define DVD_DEVICE_CODE_READ (1 << 15)
#define MAKE_DVD_DEVICE_CODE(x) (DVD_DEVICE_CODE_READ | (x))

// Forward declarations
typedef struct DVDCommandBlock;
typedef struct DVDFileInfo;
typedef struct OSAlarm;

typedef enum {
    DVD_RESULT_COVER_CLOSED = -4,
    DVD_RESULT_CANCELED,
    DVD_RESULT_M2,
    DVD_RESULT_FATAL,
    DVD_RESULT_OK,
} DVDResult;

#define DVD_ESUCCESS	DVD_RESULT_OK
#define DVD_EFATAL		DVD_RESULT_FATAL
#define DVD_ECANCELED	DVD_RESULT_CANCELED
#define DVD_ECOVER		DVD_RESULT_COVER_CLOSED

typedef long DVDState;
enum DVDState_et
{
	DVD_STATE_IDLE			=  0,

	DVD_STATE_BUSY			=  1,
	DVD_STATE_WAITING		=  2,
	DVD_STATE_COVER_CLOSED	=  3,
	DVD_STATE_NO_DISK		=  4,
	DVD_STATE_COVER_OPENED	=  5,
	DVD_STATE_WRONG_DISK_ID	=  6,
	DVD_STATE_7				=  7,
	DVD_STATE_PAUSED		=  8,
	DVD_STATE_9				=  9,
	DVD_STATE_CANCELED		= 10,
	DVD_STATE_DISK_ERROR	= 11,
	DVD_STATE_MOTOR_STOPPED	= 12,

	DVD_STATE_FATAL			= -1,
};

typedef enum {
    DVD_COVER_BUSY,
    DVD_COVER_OPENED,
    DVD_COVER_CLOSED,
} DVDCoverState;

typedef void (*DVDAsyncCallback)(s32 result, struct DVDFileInfo *info);
typedef void (*DVDCommandCallback)(s32 result, struct DVDCommandBlock *block);

typedef struct DVDDiskID {
    char game[4];    // at 0x0
    char company[2]; // at 0x4
    u8 disk;         // at 0x6
    u8 version;      // at 0x7
    u8 strmEnable;   // at 0x8
    u8 strmBufSize;  // at 0x9
    u8 padding[14];  // at 0xA
    u32 rvlMagic;    // at 0x18
    u32 gcMagic;     // at 0x1C
} DVDDiskID;

typedef struct DVDCommandBlock {
    struct DVDCommandBlock *next; // at 0x0
    struct DVDCommandBlock *prev; // at 0x4
    u32 command;                  // at 0x8
    volatile s32 state;           // at 0xC
    u32 offset;                   // at 0x10
    u32 length;                   // at 0x14
    void *addr;                   // at 0x18
    u32 transferSize;             // at 0x1C
    u32 transferTotal;            // at 0x20
    DVDDiskID *id;                // at 0x24
    DVDCommandCallback callback;  // at 0x28
    void *userData;               // at 0x2C
} DVDCommandBlock;

typedef struct DVDDriveInfo {
    u16 revision;    // at 0x0
    u16 deviceCode;  // at 0x2
    u32 releaseDate; // at 0x4
    char padding[32 - 0x8];
} DVDDriveInfo;

typedef struct DVDFileInfo {
    DVDCommandBlock block;     // at 0x0
    u32 offset;                // at 0x30
    u32 size;                  // at 0x34
    DVDAsyncCallback callback; // at 0x38
} DVDFileInfo;

extern volatile u32 __DVDLayoutFormat;

void DVDInit(void);
BOOL DVDReadAbsAsyncPrio(
    DVDCommandBlock *block, void *dst, u32 size, u32 offset, DVDCommandCallback callback, s32 prio
);
BOOL DVDInquiryAsync(DVDCommandBlock *block, DVDDriveInfo *info, DVDCommandCallback callback);
s32 DVDGetCommandBlockStatus(const DVDCommandBlock *block);
s32 DVDGetDriveStatus(void);
void DVDPause(void);
void DVDResume(void);
BOOL DVDCancelAsync(DVDCommandBlock *block, DVDCommandCallback callback);
s32 DVDCancel(DVDCommandBlock *block);
BOOL DVDCancelAllAsync(DVDCommandCallback callback);
const DVDDiskID *DVDGetCurrentDiskID(void);
u32 __DVDGetCoverStatus(void);
void __DVDPrepareResetAsync(DVDCommandCallback callback);
void __DVDPrepareReset(void);
BOOL __DVDTestAlarm(const struct OSAlarm *alarm);
BOOL __DVDLowBreak(void);
BOOL __DVDStopMotorAsync(DVDCommandBlock *block, DVDCommandCallback callback);
void __DVDRestartMotor(void);

#ifdef __cplusplus
}
#endif
#endif