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#ifndef GUARD_LINK_H
#define GUARD_LINK_H
#include "global.h"
#define MAX_LINK_PLAYERS 4
#define MAX_RFU_PLAYERS 5
#define CMD_LENGTH 8
#define QUEUE_CAPACITY 50
#define BLOCK_BUFFER_SIZE 0x100
#define LINK_SLAVE 0
#define LINK_MASTER 8
#define LINK_STAT_LOCAL_ID 0x00000003
#define LINK_STAT_PLAYER_COUNT 0x0000001C
#define LINK_STAT_PLAYER_COUNT_SHIFT 2
#define LINK_STAT_MASTER 0x00000020
#define LINK_STAT_MASTER_SHIFT 5
#define LINK_STAT_CONN_ESTABLISHED 0x00000040
#define LINK_STAT_CONN_ESTABLISHED_SHIFT 6
#define LINK_STAT_RECEIVED_NOTHING 0x00000100
#define LINK_STAT_RECEIVED_NOTHING_SHIFT 8
#define LINK_STAT_UNK_FLAG_9 0x00000200
#define LINK_STAT_UNK_FLAG_9_SHIFT 9
#define LINK_STAT_ERRORS 0x0007F000
#define LINK_STAT_ERRORS_SHIFT 12
#define LINK_STAT_ERROR_HARDWARE 0x00001000
#define LINK_STAT_ERROR_HARDWARE_SHIFT 12
#define LINK_STAT_ERROR_CHECKSUM 0x00002000
#define LINK_STAT_ERROR_CHECKSUM_SHIFT 13
#define LINK_STAT_ERROR_QUEUE_FULL 0x00004000
#define LINK_STAT_ERROR_QUEUE_FULL_SHIFT 14
#define LINK_STAT_ERROR_LAG_MASTER 0x00010000
#define LINK_STAT_ERROR_LAG_MASTER_SHIFT 16
#define LINK_STAT_ERROR_INVALID_ID 0x00020000
#define LINK_STAT_ERROR_INVALID_ID_SHIFT 17
#define LINK_STAT_ERROR_LAG_SLAVE 0x00040000
#define LINK_STAT_ERROR_LAG_SLAVE_SHIFT 18
#define EXTRACT_PLAYER_COUNT(status) \
(((status) & LINK_STAT_PLAYER_COUNT) >> LINK_STAT_PLAYER_COUNT_SHIFT)
#define EXTRACT_MASTER(status) \
(((status) >> LINK_STAT_MASTER_SHIFT) & 1)
#define EXTRACT_CONN_ESTABLISHED(status) \
(((status) >> LINK_STAT_CONN_ESTABLISHED_SHIFT) & 1)
#define EXTRACT_RECEIVED_NOTHING(status) \
(((status) >> LINK_STAT_RECEIVED_NOTHING_SHIFT) & 1)
#define EXTRACT_LINK_ERRORS(status) \
(((status) & LINK_STAT_ERRORS) >> LINK_STAT_ERRORS_SHIFT)
#define LINKCMD_SEND_LINK_TYPE 0x2222
#define LINKCMD_0x2FFE 0x2FFE
#define LINKCMD_SEND_HELD_KEYS 0x4444
#define LINKCMD_0x5555 0x5555
#define LINKCMD_0x5566 0x5566
#define LINKCMD_0x5FFF 0x5FFF
#define LINKCMD_0x6666 0x6666
#define LINKCMD_0x7777 0x7777
#define LINKCMD_COUNTDOWN 0x7FFF
#define LINKCMD_CONT_BLOCK 0x8888
#define LINKCMD_0xAAAA 0xAAAA
#define LINKCMD_0xAAAB 0xAAAB
#define LINKCMD_INIT_BLOCK 0xBBBB
#define LINKCMD_SEND_HELD_KEYS_2 0xCAFE
#define LINKCMD_0xCCCC 0xCCCC
#define LINKTYPE_TRADE 0x1111 // trade
#define LINKTYPE_0x1122 0x1122 // trade
#define LINKTYPE_0x1133 0x1133 // trade
#define LINKTYPE_0x1144 0x1144 // trade
#define LINKTYPE_BATTLE 0x2211
#define LINKTYPE_0x2222 0x2222 // unused battle?
#define LINKTYPE_SINGLE_BATTLE 0x2233
#define LINKTYPE_DOUBLE_BATTLE 0x2244
#define LINKTYPE_MULTI_BATTLE 0x2255
#define LINKTYPE_BATTLE_TOWER_50 0x2266
#define LINKTYPE_BATTLE_TOWER_OPEN 0x2277
#define LINKTYPE_BATTLE_TOWER 0x2288
#define LINKTYPE_0x3311 0x3311
#define LINKTYPE_0x3322 0x3322
#define LINKTYPE_BERRY_BLENDER_SETUP 0x4411
#define LINKTYPE_CONTEST_GMODE 0x6601
#define MASTER_HANDSHAKE 0x8FFF
#define SLAVE_HANDSHAKE 0xB9A0
#define IsSendCmdComplete() (gSendCmd[0] == 0)
enum
{
LINK_STATE_START0,
LINK_STATE_START1,
LINK_STATE_HANDSHAKE,
LINK_STATE_INIT_TIMER,
LINK_STATE_CONN_ESTABLISHED,
};
enum
{
EXCHANGE_NOT_STARTED,
EXCHANGE_COMPLETE,
EXCHANGE_TIMED_OUT,
EXCHANGE_IN_PROGRESS,
EXCHANGE_STAT_4,
EXCHANGE_STAT_5,
EXCHANGE_STAT_6,
EXCHANGE_STAT_7
};
enum
{
QUEUE_FULL_NONE,
QUEUE_FULL_SEND,
QUEUE_FULL_RECV,
};
enum
{
LAG_NONE,
LAG_MASTER,
LAG_SLAVE,
};
struct LinkPlayer
{
/* 0x00 */ u16 version;
/* 0x02 */ u16 lp_field_2;
/* 0x04 */ u32 trainerId;
/* 0x08 */ u8 name[PLAYER_NAME_LENGTH + 1];
/* 0x10 */ u8 progressFlags; // (& 0x0F) is hasNationalDex, (& 0xF0) is hasClearedGame
/* 0x11 */ u8 neverRead;
/* 0x12 */ u8 progressFlagsCopy;
/* 0x13 */ u8 gender;
/* 0x14 */ u32 linkType;
/* 0x18 */ u16 id; // battle bank in battles
/* 0x1A */ u16 language;
};
struct LinkPlayerBlock
{
u8 magic1[16];
struct LinkPlayer linkPlayer;
u8 magic2[16];
};
// circular queues
struct SendQueue
{
u16 data[CMD_LENGTH][QUEUE_CAPACITY];
u8 pos;
u8 count;
};
struct RecvQueue
{
u16 data[MAX_LINK_PLAYERS][CMD_LENGTH][QUEUE_CAPACITY];
u8 pos;
u8 count;
};
struct Link
{
u8 isMaster; // 0: slave, 8: master
u8 state;
u8 localId; // local multi-player ID
u8 playerCount;
u16 tempRecvBuffer[4];
bool8 receivedNothing;
s8 serialIntrCounter;
bool8 handshakeAsMaster;
u8 link_field_F;
// error conditions
bool8 hardwareError; // hardware reported an error
bool8 badChecksum; // checksum didn't match between devices
u8 queueFull; // send or recv queue out of space
u8 lag; // connection is lagging
u16 checksum;
u8 sendCmdIndex;
u8 recvCmdIndex;
struct SendQueue sendQueue;
struct RecvQueue recvQueue;
};
struct BlockRequest
{
void * address;
u32 size;
};
extern const struct BlockRequest sBlockRequestLookupTable[5];
extern struct Link gLink;
extern u16 gRecvCmds[MAX_RFU_PLAYERS][CMD_LENGTH];
extern u8 gBlockSendBuffer[BLOCK_BUFFER_SIZE];
extern u16 gLinkType;
extern u32 gLinkStatus;
extern u16 gBlockRecvBuffer[MAX_RFU_PLAYERS][BLOCK_BUFFER_SIZE / 2];
extern u16 gSendCmd[CMD_LENGTH];
extern u8 gShouldAdvanceLinkState;
extern struct LinkPlayer gLinkPlayers[MAX_RFU_PLAYERS];
extern u16 word_3002910[];
extern bool8 gReceivedRemoteLinkPlayers;
extern bool8 gLinkVSyncDisabled;
extern u8 gWirelessCommType;
extern struct LinkPlayer gLocalLinkPlayer;
extern u8 gShouldAdvanceLinkState;
extern u16 gLinkPartnersHeldKeys[6];
void Task_DestroySelf(u8);
void OpenLink(void);
void CloseLink(void);
u16 LinkMain2(const u16 *);
void ClearLinkCallback(void);
void ClearLinkCallback_2(void);
u8 GetLinkPlayerCount(void);
void OpenLinkTimed(void);
u8 GetLinkPlayerDataExchangeStatusTimed(int lower, int higher);
bool8 IsLinkPlayerDataExchangeComplete(void);
u32 GetLinkPlayerTrainerId(u8);
void ResetLinkPlayers(void);
u8 GetMultiplayerId(void);
u8 bitmask_all_link_players_but_self(void);
bool8 SendBlock(u8, const void *, u16);
u8 GetBlockReceivedStatus(void);
void ResetBlockReceivedFlags(void);
void ResetBlockReceivedFlag(u8);
void SetLinkDebugValues(u32, u32);
u8 GetSavedPlayerCount(void);
u8 GetLinkPlayerCount_2(void);
bool8 IsLinkMaster(void);
void CB2_LinkError(void);
u8 GetSioMultiSI(void);
bool8 IsLinkConnectionEstablished(void);
void SetSuppressLinkErrorMessage(bool8);
bool8 HasLinkErrorOccurred(void);
void ResetSerial(void);
u32 LinkMain1(u8 *, u16 *, u16[MAX_RFU_PLAYERS][CMD_LENGTH]);
void RFUVSync(void);
void Timer3Intr(void);
void SerialCB(void);
u8 GetLinkPlayerCount(void);
bool32 InUnionRoom(void);
void SetLinkStandbyCallback(void);
void SetWirelessCommType1(void);
void LinkRfu_DestroyIdleTask(void);
void SetCloseLinkCallback(void);
void OpenLink(void);
bool8 IsLinkMaster(void);
void CheckShouldAdvanceLinkState(void);
void Link_StartSend5FFFwithParam(u16 a0);
void CloseLink(void);
bool8 IsLinkTaskFinished(void);
bool32 LinkRecvQueueLengthMoreThan2(void);
void ResetSerial(void);
void SetWirelessCommType1(void);
void LoadWirelessStatusIndicatorSpriteGfx(void);
void CreateWirelessStatusIndicatorSprite(u8, u8);
void StartSendingKeysToLink(void);
void ClearLinkCallback_2(void);
void Rfu_SetLinkStandbyCallback(void);
void ConvertLinkPlayerName(struct LinkPlayer * linkPlayer);
bool8 IsWirelessAdapterConnected(void);
bool8 Link_PrepareCmd0xCCCC_Rfu0xA100(u8 blockRequestType);
void LinkVSync(void);
bool8 HandleLinkConnection(void);
void LocalLinkPlayerToBlock(void);
void LinkPlayerFromBlock(u32 who);
void SetLinkErrorFromRfu(u32 status, u8 lastSendQueueCount, u8 lastRecvQueueCount, u8 isConnectionError);
u8 sub_800A8D4(void);
void sub_800AA24(void);
void sub_800A900(u8 a0);
u8 sub_800A8A4(void);
void sub_800A9A4(void);
void SetLocalLinkPlayerId(u8 playerId);
bool32 IsSendingKeysToLink(void);
u32 GetLinkRecvQueueLength(void);
#endif // GUARD_LINK_H
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