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Some link rfu cleanup / link.c documentation

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This commit is contained in:
GriffinR
2020-06-08 00:45:06 -04:00
parent c98342c973
commit 35867f531b
15 changed files with 354 additions and 376 deletions
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162
src/link.c
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@@ -1,5 +1,3 @@
// Includes
#include "global.h"
#include "m4a.h"
#include "malloc.h"
@@ -30,10 +28,6 @@
#include "constants/rgb.h"
#include "constants/trade.h"
extern u16 gHeldKeyCodeToSend;
// Static type declarations
struct BlockTransfer
{
u16 pos;
@@ -51,15 +45,13 @@ struct LinkTestBGInfo
u32 dummy_C;
};
// Static RAM declarations
static struct BlockTransfer sBlockSend;
static struct BlockTransfer sBlockRecv[MAX_LINK_PLAYERS];
static u32 sBlockSendDelayCounter;
static u32 gUnknown_03000D54;
static u8 gUnknown_03000D58;
static bool32 sDummy1; // Never read
static bool8 sDummy2; // Never assigned, read in unused function
static u32 sPlayerDataExchangeStatus;
static u32 gUnknown_03000D60;
static bool32 sDummy3; // Never read
static u8 sLinkTestLastBlockSendPos;
static u8 sLinkTestLastBlockRecvPos[MAX_LINK_PLAYERS];
static u8 sNumVBlanksWithoutSerialIntr;
@@ -74,15 +66,15 @@ u32 gLinkDebugSeed;
struct LinkPlayerBlock gLocalLinkPlayerBlock;
bool8 gLinkErrorOccurred;
u32 gLinkDebugFlags;
u32 gFiller_03003074;
u32 gLinkFiller1;
bool8 gRemoteLinkPlayersNotReceived[MAX_LINK_PLAYERS];
u8 gBlockReceivedStatus[MAX_LINK_PLAYERS];
u32 gFiller_03003080;
u32 gLinkFiller2;
u16 gLinkHeldKeys;
u16 gRecvCmds[MAX_RFU_PLAYERS][CMD_LENGTH];
u32 gLinkStatus;
bool8 gUnknown_030030E4;
bool8 gUnknown_030030E8;
bool8 gLinkDummy1; // Never read
bool8 gLinkDummy2; // Never read
bool8 gUnknown_030030EC[MAX_LINK_PLAYERS];
bool8 gUnknown_030030F0[MAX_LINK_PLAYERS];
u16 gUnknown_030030F4;
@@ -97,15 +89,15 @@ void (*gLinkCallback)(void);
u8 gShouldAdvanceLinkState;
u16 gLinkTestBlockChecksums[MAX_LINK_PLAYERS];
u8 gBlockRequestType;
u32 gFiller_03003154;
u32 gFiller_03003158;
u32 gFiller_0300315c;
u32 gLinkFiller3;
u32 gLinkFiller4;
u32 gLinkFiller5;
u8 gLastSendQueueCount;
struct Link gLink;
u8 gLastRecvQueueCount;
u16 gLinkSavedIme;
u32 gFiller_03004138;
u32 gFiller_0300413C;
u32 gLinkFiller6;
u32 gLinkFiller7;
EWRAM_DATA u8 gLinkTestDebugValuesEnabled = 0;
EWRAM_DATA u8 gUnknown_020223BD = 0;
@@ -130,10 +122,10 @@ static EWRAM_DATA void *sLinkErrorBgTilemapBuffer = NULL;
// Static ROM declarations
static void InitLocalLinkPlayer(void);
static void sub_80096BC(void);
static void VBlankCB_LinkError(void);
static void CB2_LinkTest(void);
static void ProcessRecvCmds(u8 unused);
static void sub_8009F70(void);
static void LinkCB_SendHeldKeys(void);
static void ResetBlockSend(void);
static bool32 InitBlockSend(const void *src, size_t size);
static void LinkCB_BlockSendBegin(void);
@@ -243,7 +235,7 @@ static const u8 sUnused_082ED224[] = {0x00, 0xFF, 0xFE, 0xFF, 0x00};
bool8 IsWirelessAdapterConnected(void)
{
SetWirelessCommType1();
sub_800E700();
InitRFUAPI();
if (rfu_LMAN_REQBN_softReset_and_checkID() == 0x8001)
{
rfu_REQ_stopMode();
@@ -301,7 +293,7 @@ void LinkTestScreen(void)
ResetSpriteData();
FreeAllSpritePalettes();
ResetTasks();
SetVBlankCallback(sub_80096BC);
SetVBlankCallback(VBlankCB_LinkError);
ResetBlockSend();
gLinkType = LINKTYPE_TRADE;
OpenLink();
@@ -317,7 +309,7 @@ void LinkTestScreen(void)
AnimateSprites();
BuildOamBuffer();
UpdatePaletteFade();
gUnknown_03000D60 = 0;
sDummy3 = FALSE;
InitLocalLinkPlayer();
CreateTask(Task_PrintTestData, 0);
SetMainCallback2(CB2_LinkTest);
@@ -344,7 +336,7 @@ static void InitLocalLinkPlayer(void)
}
}
static void sub_80096BC(void)
static void VBlankCB_LinkError(void)
{
LoadOam();
ProcessSpriteCopyRequests();
@@ -355,9 +347,9 @@ static void InitLink(void)
{
int i;
for (i = 0; i < 8; i++)
for (i = 0; i < CMD_LENGTH; i++)
{
gSendCmd[i] = 0xefff;
gSendCmd[i] = 0xEfff;
}
gLinkOpen = TRUE;
EnableSerial();
@@ -386,15 +378,15 @@ void OpenLink(void)
gSuppressLinkErrorMessage = FALSE;
ResetBlockReceivedFlags();
ResetBlockSend();
gUnknown_03000D54 = 0;
gUnknown_030030E8 = FALSE;
gUnknown_030030E4 = FALSE;
sDummy1 = FALSE;
gLinkDummy2 = FALSE;
gLinkDummy1 = FALSE;
gUnknown_030030F4 = 0;
CreateTask(Task_TriggerHandshake, 2);
}
else
{
sub_800E700();
InitRFUAPI();
}
gReceivedRemoteLinkPlayers = 0;
for (i = 0; i < MAX_LINK_PLAYERS; i++)
@@ -503,7 +495,7 @@ u16 LinkMain2(const u16 *heldKeys)
{
return 0;
}
for (i = 0; i < 8; i++)
for (i = 0; i < CMD_LENGTH; i++)
{
gSendCmd[i] = 0;
}
@@ -566,10 +558,10 @@ static void ProcessRecvCmds(u8 unused)
gLinkPartnersHeldKeys[i] = gRecvCmds[i][1];
break;
case LINKCMD_0x5555:
gUnknown_030030E8 = TRUE;
gLinkDummy2 = TRUE;
break;
case LINKCMD_0x5566:
gUnknown_030030E8 = TRUE;
gLinkDummy2 = TRUE;
break;
case LINKCMD_INIT_BLOCK:
{
@@ -726,70 +718,56 @@ static void BuildSendCmd(u16 command)
}
}
void sub_8009F18(void)
void StartSendingKeysToLink(void)
{
if (gWirelessCommType)
{
StartSendingKeysToRfu();
}
gLinkCallback = sub_8009F70;
gLinkCallback = LinkCB_SendHeldKeys;
}
bool32 IsSendingKeysToLink(void)
{
if (gWirelessCommType)
{
return IsSendingKeysToRfu();
}
if (gLinkCallback == sub_8009F70)
{
if (gLinkCallback == LinkCB_SendHeldKeys)
return TRUE;
}
return FALSE;
}
static void sub_8009F70(void)
static void LinkCB_SendHeldKeys(void)
{
if (gReceivedRemoteLinkPlayers == TRUE)
{
BuildSendCmd(LINKCMD_SEND_HELD_KEYS_2);
}
}
void ClearLinkCallback(void)
{
if (gWirelessCommType)
{
ClearLinkRfuCallback();
}
else
{
gLinkCallback = NULL;
}
}
void ClearLinkCallback_2(void)
{
if (gWirelessCommType)
{
ClearLinkRfuCallback();
}
else
{
gLinkCallback = NULL;
}
}
u8 GetLinkPlayerCount(void)
{
if (gWirelessCommType)
{
return Rfu_GetLinkPlayerCount();
}
return EXTRACT_PLAYER_COUNT(gLinkStatus);
}
static int sub_8009FF8(u32 version1, u32 version2)
static int AreAnyLinkPlayersUsingVersions(u32 version1, u32 version2)
{
int i;
u8 nPlayers;
@@ -797,22 +775,22 @@ static int sub_8009FF8(u32 version1, u32 version2)
nPlayers = GetLinkPlayerCount();
for (i = 0; i < nPlayers; i++)
{
if ((gLinkPlayers[i].version & 0xFF) == version1 || (gLinkPlayers[i].version & 0xFF) == version2)
{
if ((gLinkPlayers[i].version & 0xFF) == version1
|| (gLinkPlayers[i].version & 0xFF) == version2)
return 1;
}
}
return -1;
}
u32 sub_800A03C(void)
u32 LinkDummy_Return2(void)
{
return 2;
}
bool32 sub_800A040(void)
// Unused
static bool32 IsFullLinkGroupWithNoRS(void)
{
if (GetLinkPlayerCount() != 4 || sub_8009FF8(VERSION_RUBY, VERSION_SAPPHIRE) < 0)
if (GetLinkPlayerCount() != MAX_LINK_PLAYERS || AreAnyLinkPlayersUsingVersions(VERSION_RUBY, VERSION_SAPPHIRE) < 0)
{
return FALSE;
}
@@ -821,18 +799,18 @@ bool32 sub_800A040(void)
bool32 Link_AnyPartnersPlayingRubyOrSapphire(void)
{
if (sub_8009FF8(VERSION_RUBY, VERSION_SAPPHIRE) >= 0)
if (AreAnyLinkPlayersUsingVersions(VERSION_RUBY, VERSION_SAPPHIRE) >= 0)
{
return TRUE;
}
return FALSE;
}
bool32 sub_800A07C(void)
bool32 Link_AnyPartnersPlayingFRLG_JP(void)
{
int i;
i = sub_8009FF8(VERSION_FIRE_RED, VERSION_LEAF_GREEN);
i = AreAnyLinkPlayersUsingVersions(VERSION_FIRE_RED, VERSION_LEAF_GREEN);
if (i >= 0 && gLinkPlayers[i].language == LANGUAGE_JAPANESE)
{
return TRUE;
@@ -983,7 +961,7 @@ static bool32 InitBlockSend(const void *src, size_t size)
sBlockSend.active = TRUE;
sBlockSend.size = size;
sBlockSend.pos = 0;
if (size > 0x100)
if (size > BLOCK_BUFFER_SIZE)
{
sBlockSend.src = src;
}
@@ -1016,7 +994,7 @@ static void LinkCB_BlockSend(void)
src = sBlockSend.src;
gSendCmd[0] = LINKCMD_CONT_BLOCK;
for (i = 0; i < 7; i++)
for (i = 0; i < CMD_LENGTH - 1; i++)
{
gSendCmd[i + 1] = (src[sBlockSend.pos + i * 2 + 1] << 8) | src[sBlockSend.pos + i * 2];
}
@@ -1313,7 +1291,7 @@ void SetLinkDebugValues(u32 seed, u32 flags)
gLinkDebugFlags = flags;
}
u8 sub_800A9A8(void)
u8 GetSavedLinkPlayerCountAsBitFlags(void)
{
int i;
u8 flags;
@@ -1326,7 +1304,7 @@ u8 sub_800A9A8(void)
return flags;
}
u8 sub_800A9D8(void)
u8 GetLinkPlayerCountAsBitFlags(void)
{
int i;
u8 flags;
@@ -1339,11 +1317,11 @@ u8 sub_800A9D8(void)
return flags;
}
void sub_800AA04(u8 a0)
void SaveLinkPlayers(u8 playerCount)
{
int i;
gSavedLinkPlayerCount = a0;
gSavedLinkPlayerCount = playerCount;
gSavedMultiplayerId = GetMultiplayerId();
for (i = 0; i < MAX_RFU_PLAYERS; i++)
{
@@ -1358,17 +1336,17 @@ u8 GetSavedPlayerCount(void)
return gSavedLinkPlayerCount;
}
u8 sub_800AA54(void)
// Unused
static u8 GetSavedMultiplayerId(void)
{
return gSavedMultiplayerId;
}
bool8 sub_800AA60(void)
bool8 DoesLinkPlayerCountMatchSaved(void)
{
int i;
unsigned count;
u32 count = 0;
count = 0;
for (i = 0; i < gSavedLinkPlayerCount; i++)
{
if (gLinkPlayers[i].trainerId == gSavedLinkPlayers[i].trainerId)
@@ -1376,9 +1354,7 @@ bool8 sub_800AA60(void)
if (gLinkType == LINKTYPE_BATTLE_TOWER)
{
if (gLinkType == gLinkPlayers[i].linkType)
{
count++;
}
}
else
{
@@ -1396,7 +1372,7 @@ bool8 sub_800AA60(void)
return FALSE;
}
void sub_800AAF4(void)
void ClearSavedLinkPlayers(void)
{
int i;
@@ -1407,13 +1383,14 @@ void sub_800AAF4(void)
}
}
void sub_800AB18(void)
void CheckLinkPlayersMatchSaved(void)
{
u8 i;
for (i = 0; i < gSavedLinkPlayerCount; i++)
{
if (gSavedLinkPlayers[i].trainerId != gLinkPlayers[i].trainerId || StringCompare(gSavedLinkPlayers[i].name, gLinkPlayers[i].name) != 0)
if (gSavedLinkPlayers[i].trainerId != gLinkPlayers[i].trainerId
|| StringCompare(gSavedLinkPlayers[i].name, gLinkPlayers[i].name) != 0)
{
gLinkErrorOccurred = TRUE;
CloseLink();
@@ -1442,9 +1419,10 @@ bool8 IsLinkMaster(void)
return EXTRACT_MASTER(gLinkStatus);
}
u8 sub_800ABE8(void)
// Unused
static u8 GetDummy2(void)
{
return gUnknown_03000D58;
return sDummy2;
}
void sub_800ABF4(u16 a0)
@@ -1458,7 +1436,7 @@ void sub_800ABF4(u16 a0)
if (gLinkCallback == NULL)
{
gLinkCallback = sub_800AC80;
gUnknown_030030E4 = FALSE;
gLinkDummy1 = FALSE;
gUnknown_030030F4 = a0;
}
}
@@ -1479,7 +1457,7 @@ void sub_800AC34(void)
else
{
gLinkCallback = sub_800AC80;
gUnknown_030030E4 = FALSE;
gLinkDummy1 = FALSE;
gUnknown_030030F4 = 0;
}
}
@@ -1515,7 +1493,7 @@ static void sub_800ACAC(void)
gLinkVSyncDisabled = TRUE;
CloseLink();
gLinkCallback = NULL;
gUnknown_030030E4 = TRUE;
gLinkDummy1 = TRUE;
}
}
@@ -1534,7 +1512,7 @@ void sub_800AD10(void)
else
{
gLinkCallback = sub_800AD5C;
gUnknown_030030E4 = FALSE;
gLinkDummy1 = FALSE;
gUnknown_030030F4 = 0;
}
}
@@ -1574,7 +1552,7 @@ static void sub_800AD88(void)
gLinkVSyncDisabled = TRUE;
CloseLink();
gLinkCallback = NULL;
gUnknown_030030E4 = TRUE;
gLinkDummy1 = TRUE;
}
}
@@ -1590,7 +1568,7 @@ void sub_800ADF8(void)
{
gLinkCallback = sub_800AE30;
}
gUnknown_030030E4 = FALSE;
gLinkDummy1 = FALSE;
}
}
@@ -1642,7 +1620,7 @@ static void CheckErrorStatus(void)
}
}
void sub_800AF18(u32 status, u8 lastSendQueueCount, u8 lastRecvQueueCount, u8 unk_06)
void BufferLinkErrorInfo(u32 status, u8 lastSendQueueCount, u8 lastRecvQueueCount, bool8 unk_06)
{
sLinkErrorBuffer.status = status;
sLinkErrorBuffer.lastSendQueueCount = lastSendQueueCount;
@@ -1673,7 +1651,7 @@ void CB2_LinkError(void)
}
ResetLinkRfuGFLayer();
}
SetVBlankCallback(sub_80096BC);
SetVBlankCallback(VBlankCB_LinkError);
ResetBgsAndClearDma3BusyFlags(0);
InitBgsFromTemplates(0, sLinkErrorBgTemplates, ARRAY_COUNT(sLinkErrorBgTemplates));
sLinkErrorBgTilemapBuffer = tilemapBuffer = malloc(0x800);