HDLGameSvr.h

/* Server configuration */
#define MAX_CLIENTS                   1
#define SERVER_PORT_NUM               45061
#define SERVER_DATA_PORT_NUM          45062
#define SERVER_MAIN_THREAD_PRIORITY   0x10
#define SERVER_CLIENT_THREAD_PRIORITY 0x11
#define SERVER_IO_THREAD_PRIORITY     0x12
#define SERVER_THREAD_STACK_SIZE      0xA00
#define CLIENT_THREAD_STACK_SIZE      0xA00
#define CLIENT_DATA_THREAD_STACK_SIZE 0xA00

struct HDDToolsPacketHdr
{
    u32 command;
    u32 PayloadLength;
    int result;
} __attribute__((__packed__));

struct HDLGameInfo
{
    char GameTitle[GAME_TITLE_MAX_LEN_BYTES + 1];
    char DiscID[11];       /* E.g. SXXX-99999 */
    char StartupFname[14]; /* E.g. "SXXX-999.99;1" */
    u8 DiscType;
    u32 SectorsInDiscLayer0;
    u32 SectorsInDiscLayer1;
    u8 CompatibilityFlags;
    u8 TRType;
    u8 TRMode;
} __attribute__((__packed__));

struct IOInitReq
{
    u32 sectors, offset;
    char partition[33];
} __attribute__((__packed__));

struct HDLGameEntryTransit
{
    char PartName[33];
    char GameTitle[GAME_TITLE_MAX_LEN_BYTES + 1];
    char DiscID[11];
    u8 CompatibilityModeFlags;
    u8 TRType;
    u8 TRMode;
    u8 DiscType;
    u32 sectors; // In 2048-byte units
} __attribute__((__packed__));

struct OSDResourceInitReq
{
    int UseSaveData;
    char OSDTitleLine1[OSD_TITLE_MAX_LEN_BYTES + 1]; // 16 characters maximum.
    char OSDTitleLine2[OSD_TITLE_MAX_LEN_BYTES + 1]; // 16 characters maximum.
    char DiscID[11];
    char partition[33];
} __attribute__((__packed__));

struct OSDResourceWriteReq
{
    int index;
    u32 length;
} __attribute__((__packed__));

struct OSDResourceStat
{
    u32 lengths[NUM_OSD_FILES_ENTS];
} __attribute__((__packed__));

struct OSDResourceStatReq
{
    char partition[33];
} __attribute__((__packed__));

struct OSDResourceReadReq
{
    char partition[33];
    int index;
} __attribute__((__packed__));

struct OSD_TitlesTransit
{
    char OSDTitleLine1[OSD_TITLE_MAX_LEN_BYTES + 1]; // 16 characters maximum.
    char OSDTitleLine2[OSD_TITLE_MAX_LEN_BYTES + 1]; // 16 characters maximum.
} __attribute__((__packed__));

struct OSD_MC_ResourceStatReq
{
    char DiscID[11];
} __attribute__((__packed__));

struct OSD_MC_ResourceReq
{
    char DiscID[11];
    char filename[32];
} __attribute__((__packed__));

struct OSD_MC_ResourceReadReq
{
    char DiscID[11];
    char filename[32];
    u32 length;
} __attribute__((__packed__));

#define HDLGMAN_SERVER_VERSION 0x0C
#define HDLGMAN_CLIENT_VERSION 0x0C

enum HDLGMAN_ClientServerCommands {
    // Server commands
    HDLGMAN_SERVER_RESPONSE = 0x00,
    HDLGMAN_SERVER_GET_VERSION,

    // Client commands
    HDLGMAN_CLIENT_SEND_VERSION,
    HDLGMAN_CLIENT_VERSION_ERR, // Server rejects connection to client (version mismatch).

    // Game installation commands
    HDLGMAN_SERVER_PREP_GAME_INST = 0x10, // Creates a new partition and will also automatically invoke HDLGMAN_SERVER_INIT_GAME_WRITE.
    HDLGMAN_SERVER_INIT_GAME_WRITE,       // Opens an existing partition for writing.
    HDLGMAN_SERVER_INIT_GAME_READ,        // Opens an existing partition for reading.
    HDLGMAN_SERVER_IO_STATUS,
    HDLGMAN_SERVER_CLOSE_GAME,
    HDLGMAN_SERVER_LOAD_GAME_LIST,
    HDLGMAN_SERVER_READ_GAME_LIST,
    HDLGMAN_SERVER_READ_GAME_LIST_ENTRY,
    HDLGMAN_SERVER_READ_GAME_ENTRY,
    HDLGMAN_SERVER_UPD_GAME_ENTRY,
    HDLGMAN_SERVER_DEL_GAME_ENTRY,
    HDLGMAN_SERVER_GET_GAME_PART_NAME,
    HDLGMAN_SERVER_GET_FREE_SPACE,

    // OSD-resource management
    HDLGMAN_SERVER_INIT_OSD_RESOURCES = 0x20,
    HDLGMAN_SERVER_OSD_RES_LOAD_INIT,
    HDLGMAN_SERVER_OSD_RES_LOAD,
    HDLGMAN_SERVER_WRITE_OSD_RESOURCES,
    HDLGMAN_SERVER_OSD_RES_WRITE_CANCEL,
    HDLGMAN_SERVER_GET_OSD_RES_STAT,
    HDLGMAN_SERVER_OSD_RES_READ,
    HDLGMAN_SERVER_OSD_RES_READ_TITLES,
    HDLGMAN_SERVER_INIT_DEFAULT_OSD_RESOURCES, // Same as HDLGMAN_SERVER_INIT_OSD_RESOURCES, but doesn't require the OSD titles and is designed for subsequent pre-built OSD resource file uploading (with HDLGMAN_SERVER_OSD_RES_LOAD) from the client.
    HDLGMAN_SERVER_OSD_MC_SAVE_CHECK,
    HDLGMAN_SERVER_OSD_MC_GET_RES_STAT,
    HDLGMAN_SERVER_OSD_MC_RES_READ,

    HDLGMAN_SERVER_SHUTDOWN = 0xFF,
};

// Must be large enough to support sending & receiving all parameters and be a multiple of 64. Only game reading/writing will use external buffers.
#define HDLGMAN_RECV_MAX (128 * 1024)
#define HDLGMAN_SEND_MAX (128 * 1024)

/* Client status bits */
#define CLIENT_STATUS_VERSION_VERIFIED 0x01
#define CLIENT_STATUS_OPENED_FILE      0x02
#define CLIENT_STATUS_MOUNTED_FS       0x04
#define CLIENT_STATUS_CONNECTED        0x80

/* Server status bits */
#define SERVER_STATUS_THREAD_RUN 0x80

/* Function prototypes. */
int InitializeStartServer(void);
void DeinitializeServer(void); // Shut down the server.