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librfu_rfu.c
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#include <limits.h>
#include "librfu.h"
// If expanding the length of the player name and wireless link functionality is
// desired, ensure that the name string is limited in size when it's copied from the
// saveblock to any Rfu-related fields (e.g. in SetHostRfuUsername).
// If wireless link functionality is not desired ignore or delete this warning.
#if RFU_USER_NAME_LENGTH < (PLAYER_NAME_LENGTH + 1)
#warning "The Wireless Adapter hardware expects a username of no more than 8 bytes."
#endif
struct LLSFStruct
{
u8 frameSize;
u8 recvFirstShift;
u8 connSlotFlagShift;
u8 slotStateShift;
u8 ackShift;
u8 phaseShift;
u8 nShift;
u8 recvFirstMask;
u8 connSlotFlagMask;
u8 slotStateMask;
u8 ackMask;
u8 phaseMask;
u8 nMask;
u16 framesMask;
};
struct RfuLocalStruct
{
u8 recvFirst;
u8 connSlotFlag;
u8 slotState;
u8 ack;
u8 phase;
u8 n;
u16 frame;
};
static void rfu_CB_defaultCallback(u8 reqCommand, u16 reqResult);
static void rfu_CB_reset(u8 reqCommand, u16 reqResult);
static void rfu_CB_configGameData(u8 reqCommand, u16 reqResult);
static void rfu_CB_stopMode(u8 reqCommand, u16 reqResult);
static void rfu_CB_startSearchChild(u8 reqCommand, u16 reqResult);
static void rfu_CB_pollAndEndSearchChild(u8 reqCommand, u16 reqResult);
static void rfu_CB_startSearchParent(u8 reqCommand, u16 reqResult);
static void rfu_CB_pollSearchParent(u8 reqCommand, u16 reqResult);
static void rfu_CB_pollConnectParent(u8 reqCommand, u16 reqResult);
static void rfu_CB_pollConnectParent(u8 reqCommand, u16 reqResult);
static void rfu_CB_disconnect(u8 reqCommand, u16 reqResult);
static void rfu_CB_CHILD_pollConnectRecovery(u8 reqCommand, u16 reqResult);
static void rfu_CB_sendData(UNUSED u8 reqCommand, u16 reqResult);
static void rfu_CB_sendData2(UNUSED u8 reqCommand, u16 reqResult);
static void rfu_CB_sendData3(u8 reqCommand, u16 reqResult);
static void rfu_CB_recvData(u8 reqCommand, u16 reqResult);
static void rfu_enableREQCallback(bool8 enable);
static void rfu_STC_clearAPIVariables(void);
static void rfu_STC_readChildList(void);
static void rfu_STC_readParentCandidateList(void);
static void rfu_STC_REQ_callback(u8 reqCommand, u16 reqResult);
static void rfu_STC_removeLinkData(u8, u8);
static void rfu_STC_fastCopy(const u8 **, u8 **, s32);
static void rfu_STC_clearLinkStatus(u8);
static void rfu_NI_checkCommFailCounter(void);
static u16 rfu_STC_setSendData_org(u8, u8, u8, const void *, u32);
static void rfu_constructSendLLFrame(void);
static u16 rfu_STC_NI_constructLLSF(u8, u8 **, struct NIComm *);
static u16 rfu_STC_UNI_constructLLSF(u8, u8 **);
static void rfu_STC_PARENT_analyzeRecvPacket(void);
static void rfu_STC_CHILD_analyzeRecvPacket(void);
static u16 rfu_STC_analyzeLLSF(u8, const u8 *, u16);
static void rfu_STC_UNI_receive(u8, const struct RfuLocalStruct *, const u8 *);
static void rfu_STC_NI_receive_Receiver(u8, const struct RfuLocalStruct *, const u8 *);
static void rfu_STC_NI_receive_Sender(u8, u8, const struct RfuLocalStruct *, UNUSED const u8 *);
static void rfu_STC_NI_initSlot_asRecvDataEntity(u8, struct NIComm *);
static void rfu_STC_NI_initSlot_asRecvControllData(u8, struct NIComm *);
COMMON_DATA struct RfuSlotStatusUNI *gRfuSlotStatusUNI[RFU_CHILD_MAX] = {0};
COMMON_DATA struct RfuSlotStatusNI *gRfuSlotStatusNI[RFU_CHILD_MAX] = {0};
COMMON_DATA struct RfuLinkStatus *gRfuLinkStatus = NULL;
COMMON_DATA struct RfuStatic *gRfuStatic = NULL;
COMMON_DATA struct RfuFixed *gRfuFixed = NULL;
static const struct LLSFStruct llsf_struct[2] = {
[MODE_CHILD] = {
.frameSize = 2,
.recvFirstShift = 14,
.connSlotFlagShift = 0,
.slotStateShift = 10,
.ackShift = 9,
.phaseShift = 5,
.nShift = 7,
.recvFirstMask = 2,
.connSlotFlagMask = 0,
.slotStateMask = 15,
.ackMask = 1,
.phaseMask = 3,
.nMask = 3,
.framesMask = 0x1f
},
[MODE_PARENT] = {
.frameSize = 3,
.recvFirstShift = 22,
.connSlotFlagShift = 18,
.slotStateShift = 14,
.ackShift = 13,
.phaseShift = 9,
.nShift = 11,
.recvFirstMask = 3,
.connSlotFlagMask = 15,
.slotStateMask = 15,
.ackMask = 1,
.phaseMask = 3,
.nMask = 3,
.framesMask = 0x7f
}
};
#define xstr(s) str(s)
#define str(s) #s
static const char version_string[] = "RFU_V" xstr(LIBRFU_VERSION);
static const char str_checkMbootLL[] = "RFU-MBOOT";
#define COPY(src, dst, iterator, size) do { \
const u16 *_src = (const u16 *)(src); \
u16 *_dst = (u16 *)(dst); \
(iterator) = (size); \
while ((iterator)-- != 0) \
*_dst++ = *_src++; \
} while (0)
u16 rfu_initializeAPI(u32 *APIBuffer, u16 buffByteSize, IntrFunc *sioIntrTable_p, bool8 copyInterruptToRam)
{
u16 i;
u16 buffByteSizeMax;
// is in EWRAM?
// is not 4-byte aligned?
if ((u32)APIBuffer & 3)
return ERR_RFU_API_BUFF_ADR;
if (copyInterruptToRam)
{
// An assert/debug print may have existed before, ie
// printf("%s %u < %u", "somefile.c:12345", buffByteSize, num)
// to push this into buffByteSizeMax?
buffByteSizeMax = RFU_API_BUFF_SIZE_RAM;
if (buffByteSize < buffByteSizeMax)
return ERR_RFU_API_BUFF_SIZE;
}
if (!copyInterruptToRam)
{
buffByteSizeMax = RFU_API_BUFF_SIZE_ROM; // same issue as above
if (buffByteSize < buffByteSizeMax)
return ERR_RFU_API_BUFF_SIZE;
}
gRfuLinkStatus = (void *)APIBuffer + 0;
gRfuStatic = (void *)APIBuffer + 0xb4; // + sizeof(*gRfuLinkStatus)
gRfuFixed = (void *)APIBuffer + 0xdc; // + sizeof(*gRfuStatic)
gRfuSlotStatusNI[0] = (void *)APIBuffer + 0x1bc; // + sizeof(*gRfuFixed)
gRfuSlotStatusUNI[0] = (void *)APIBuffer + 0x37c; // + sizeof(*gRfuSlotStatusNI[0]) * RFU_CHILD_MAX
for (i = 1; i < RFU_CHILD_MAX; ++i)
{
gRfuSlotStatusNI[i] = &gRfuSlotStatusNI[i - 1][1];
gRfuSlotStatusUNI[i] = &gRfuSlotStatusUNI[i - 1][1];
}
// remaining space in API buffer is used for `struct RfuIntrStruct`.
gRfuFixed->STWIBuffer = (struct RfuIntrStruct *)&gRfuSlotStatusUNI[3][1];
STWI_init_all((struct RfuIntrStruct *)&gRfuSlotStatusUNI[3][1], sioIntrTable_p, copyInterruptToRam);
rfu_STC_clearAPIVariables();
for (i = 0; i < RFU_CHILD_MAX; ++i)
{
gRfuSlotStatusNI[i]->recvBuffer = NULL;
gRfuSlotStatusNI[i]->recvBufferSize = 0;
gRfuSlotStatusUNI[i]->recvBuffer = NULL;
gRfuSlotStatusUNI[i]->recvBufferSize = 0;
}
// rfu_REQ_changeMasterSlave is the function next to rfu_STC_fastCopy
#if LIBRFU_VERSION < 1026
{
const u16 *src = (const u16 *)((uintptr_t)&rfu_STC_fastCopy & ~1);
u16 *dst = gRfuFixed->fastCopyBuffer;
buffByteSizeMax = ((void *)rfu_REQ_changeMasterSlave - (void *)rfu_STC_fastCopy) / sizeof(u16);
while (buffByteSizeMax-- != 0)
*dst++ = *src++;
}
#else
COPY(
(uintptr_t)&rfu_STC_fastCopy & ~1,
gRfuFixed->fastCopyBuffer,
buffByteSizeMax,
0x60 / sizeof(u16)
);
#endif
gRfuFixed->fastCopyPtr = (void *)gRfuFixed->fastCopyBuffer + 1;
return 0;
}
static void rfu_STC_clearAPIVariables(void)
{
u16 IMEBackup = REG_IME;
u8 i, flags;
REG_IME = 0;
flags = gRfuStatic->flags;
CpuFill16(0, gRfuStatic, sizeof(struct RfuStatic));
gRfuStatic->flags = flags & 8;
CpuFill16(0, gRfuLinkStatus, sizeof(struct RfuLinkStatus));
gRfuLinkStatus->watchInterval = 4;
gRfuStatic->nowWatchInterval = 0;
gRfuLinkStatus->parentChild = MODE_NEUTRAL;
rfu_clearAllSlot();
gRfuStatic->SCStartFlag = 0;
for (i = 0; i < RFU_CHILD_MAX; ++i)
gRfuStatic->cidBak[i] = 0;
REG_IME = IMEBackup;
}
void rfu_REQ_PARENT_resumeRetransmitAndChange(void)
{
STWI_set_Callback_M(rfu_STC_REQ_callback);
STWI_send_ResumeRetransmitAndChangeREQ();
}
u16 rfu_UNI_PARENT_getDRAC_ACK(u8 *ackFlag)
{
u8 *buf;
*ackFlag = 0;
if (gRfuLinkStatus->parentChild != MODE_PARENT)
return ERR_MODE_NOT_PARENT;
buf = rfu_getSTWIRecvBuffer();
switch (*buf)
{
case 40:
case 54:
if (buf[1] == 0)
*ackFlag = gRfuLinkStatus->connSlotFlag;
else
*ackFlag = buf[4];
return 0;
default:
return ERR_REQ_CMD_ID;
}
}
void rfu_setTimerInterrupt(u8 timerNo, IntrFunc *timerIntrTable_p)
{
STWI_init_timer(timerIntrTable_p, timerNo);
}
u8 *rfu_getSTWIRecvBuffer(void)
{
return (u8 *)gRfuFixed->STWIBuffer;
}
void rfu_setMSCCallback(void (*callback)(u16 reqCommandId))
{
STWI_set_Callback_S(callback);
}
void rfu_setREQCallback(void (*callback)(u16 reqCommandId, u16 reqResult))
{
gRfuFixed->reqCallback = callback;
rfu_enableREQCallback(callback != NULL);
}
static void rfu_enableREQCallback(bool8 enable)
{
if (enable)
gRfuStatic->flags |= 8;
else
gRfuStatic->flags &= 0xF7;
}
static void rfu_STC_REQ_callback(u8 reqCommand, u16 reqResult)
{
STWI_set_Callback_M(rfu_CB_defaultCallback);
gRfuStatic->reqResult = reqResult;
if (gRfuStatic->flags & 8)
gRfuFixed->reqCallback(reqCommand, reqResult);
}
static void rfu_CB_defaultCallback(u8 reqCommand, u16 reqResult)
{
s32 bmSlotFlags;
u8 i;
if (reqCommand == ID_CLOCK_SLAVE_MS_CHANGE_ERROR_BY_DMA_REQ)
{
if (gRfuStatic->flags & 8)
gRfuFixed->reqCallback(reqCommand, reqResult);
bmSlotFlags = gRfuLinkStatus->connSlotFlag | gRfuLinkStatus->linkLossSlotFlag;
for (i = 0; i < RFU_CHILD_MAX; ++i)
if ((bmSlotFlags >> i) & 1)
rfu_STC_removeLinkData(i, 1);
gRfuLinkStatus->parentChild = MODE_NEUTRAL;
}
}
u16 rfu_waitREQComplete(void)
{
STWI_poll_CommandEnd();
return gRfuStatic->reqResult;
}
void rfu_REQ_RFUStatus(void)
{
STWI_set_Callback_M(rfu_STC_REQ_callback);
STWI_send_SystemStatusREQ();
}
u16 rfu_getRFUStatus(u8 *rfuState)
{
if (gRfuFixed->STWIBuffer->rxPacketAlloc.rfuPacket8.data[0] != 0x93)
return ERR_REQ_CMD_ID;
if (STWI_poll_CommandEnd() == 0)
*rfuState = gRfuFixed->STWIBuffer->rxPacketAlloc.rfuPacket8.data[7];
else
*rfuState = 0xFF;
return 0;
}
/*
* RFU Multiboot images are loaded into IWRAM
* struct RfuMbootLL
* {
* struct RfuLinkStatus status;
* u8 filler_B4[0x3C];
* char name[10];
* u16 checksum;
* }
* Returns 1 if the packet to inherit is malformed.
*/
u16 rfu_MBOOT_CHILD_inheritanceLinkStatus(void)
{
const char *s1 = str_checkMbootLL;
char *s2 = (char *)(IWRAM_START + 0xF0);
u16 checksum;
u16 *mb_buff_iwram_p;
u8 i;
// if (strcmp(s1, s2) != 0) return 1;
while (*s1 != '\0')
if (*s1++ != *s2++)
return 1;
mb_buff_iwram_p = (u16 *)IWRAM_START;
// The size of struct RfuLinkStatus is 180
checksum = 0;
for (i = 0; i < 180/2; ++i)
checksum += *mb_buff_iwram_p++;
if (checksum != *(u16 *)(IWRAM_START + 0xFA))
return 1;
CpuCopy16((u16 *)IWRAM_START, gRfuLinkStatus, sizeof(struct RfuLinkStatus));
gRfuStatic->flags |= 0x80; // mboot
return 0;
}
void rfu_REQ_stopMode(void)
{
vu32 *timerReg;
if (REG_IME == 0)
{
rfu_STC_REQ_callback(ID_STOP_MODE_REQ, 6);
gSTWIStatus->error = ERR_REQ_CMD_IME_DISABLE;
}
else
{
AgbRFU_SoftReset();
rfu_STC_clearAPIVariables();
if (AgbRFU_checkID(8) == RFU_ID)
{
timerReg = ®_TMCNT(gSTWIStatus->timerSelect);
*timerReg = 0;
*timerReg = (TIMER_ENABLE | TIMER_1024CLK) << 16;
while (*timerReg << 16 < 262 << 16)
;
*timerReg = 0;
STWI_set_Callback_M(rfu_CB_stopMode);
STWI_send_StopModeREQ();
}
else
{
REG_SIOCNT = SIO_MULTI_MODE;
rfu_STC_REQ_callback(ID_STOP_MODE_REQ, 0);
}
}
}
static void rfu_CB_stopMode(u8 reqCommand, u16 reqResult)
{
if (reqResult == 0)
REG_SIOCNT = SIO_MULTI_MODE;
rfu_STC_REQ_callback(reqCommand, reqResult);
}
u32 rfu_REQBN_softReset_and_checkID(void)
{
u32 id;
if (REG_IME == 0)
return ERR_ID_CHECK_IME_DISABLE;
AgbRFU_SoftReset();
rfu_STC_clearAPIVariables();
if ((id = AgbRFU_checkID(30)) == 0)
REG_SIOCNT = SIO_MULTI_MODE;
return id;
}
void rfu_REQ_reset(void)
{
STWI_set_Callback_M(rfu_CB_reset);
STWI_send_ResetREQ();
}
static void rfu_CB_reset(u8 reqCommand, u16 reqResult)
{
if (reqResult == 0)
rfu_STC_clearAPIVariables();
rfu_STC_REQ_callback(reqCommand, reqResult);
}
void rfu_REQ_configSystem(u16 availSlotFlag, u8 maxMFrame, u8 mcTimer)
{
STWI_set_Callback_M(rfu_STC_REQ_callback);
STWI_send_SystemConfigREQ((availSlotFlag & AVAIL_SLOT1) | 0x3C, maxMFrame, mcTimer);
if (mcTimer == 0)
{
gRfuStatic->linkEmergencyLimit = 1;
}
else
{
u16 IMEBackup = REG_IME;
REG_IME = 0;
gRfuStatic->linkEmergencyLimit = Div(600, mcTimer);
REG_IME = IMEBackup;
}
}
void rfu_REQ_configGameData(u8 mbootFlag, u16 serialNo, const u8 *gname, const u8 *uname)
{
u8 packet[16];
u8 i;
u8 check_sum;
const u8 *gnameBackup = gname;
const u8 *unameBackup;
packet[0] = serialNo;
packet[1] = serialNo >> 8;
if (mbootFlag != 0)
packet[1] = (serialNo >> 8) | 0x80;
for (i = 2; i < 15; ++i)
packet[i] = *gname++;
check_sum = 0;
unameBackup = uname;
for (i = 0; i < 8; ++i)
{
check_sum += *unameBackup++;
check_sum += *gnameBackup++;
}
packet[15] = ~check_sum;
if (mbootFlag != 0)
packet[14] = 0;
STWI_set_Callback_M(rfu_CB_configGameData);
STWI_send_GameConfigREQ(packet, uname);
}
static void rfu_CB_configGameData(u8 reqCommand, u16 reqResult)
{
s32 serialNo;
u8 *gname_uname_p;
u8 i;
u8 *packet_p;
if (reqResult == 0)
{
packet_p = gSTWIStatus->txPacket->rfuPacket8.data;
serialNo = gRfuLinkStatus->my.serialNo = packet_p[4];
gRfuLinkStatus->my.serialNo = (packet_p[5] << 8) | serialNo;
gname_uname_p = &packet_p[6];
if (gRfuLinkStatus->my.serialNo & 0x8000)
{
gRfuLinkStatus->my.serialNo = gRfuLinkStatus->my.serialNo ^ 0x8000;
gRfuLinkStatus->my.mbootFlag = 1;
}
else
{
gRfuLinkStatus->my.mbootFlag = 0;
}
for (i = 0; i < RFU_GAME_NAME_LENGTH; ++i)
gRfuLinkStatus->my.gname[i] = *gname_uname_p++;
++gname_uname_p;
for (i = 0; i < PLAYER_NAME_LENGTH + 1; ++i)
gRfuLinkStatus->my.uname[i] = *gname_uname_p++;
}
rfu_STC_REQ_callback(reqCommand, reqResult);
}
void rfu_REQ_startSearchChild(void)
{
u16 result;
#if LIBRFU_VERSION >= 1026
u16 i;
for (i = 0; i < RFU_CHILD_MAX; i++)
{
gRfuStatic->lsFixedCount[i] = 0;
}
#endif
STWI_set_Callback_M(rfu_CB_defaultCallback);
STWI_send_SystemStatusREQ();
result = STWI_poll_CommandEnd();
if (result == 0)
{
if (gRfuFixed->STWIBuffer->rxPacketAlloc.rfuPacket8.data[7] == 0)
rfu_STC_clearLinkStatus(MODE_PARENT);
}
else
{
rfu_STC_REQ_callback(ID_SC_START_REQ, result);
}
STWI_set_Callback_M(rfu_CB_startSearchChild);
STWI_send_SC_StartREQ();
}
static void rfu_CB_startSearchChild(u8 reqCommand, u16 reqResult)
{
if (reqResult == 0)
gRfuStatic->SCStartFlag = 1;
rfu_STC_REQ_callback(reqCommand, reqResult);
}
static void rfu_STC_clearLinkStatus(u8 parentChild)
{
u8 i;
rfu_clearAllSlot();
if (parentChild != MODE_CHILD)
{
CpuFill16(0, gRfuLinkStatus->partner, sizeof(gRfuLinkStatus->partner));
gRfuLinkStatus->findParentCount = 0;
}
for (i = 0; i < RFU_CHILD_MAX; ++i)
gRfuLinkStatus->strength[i] = 0;
gRfuLinkStatus->connCount = 0;
gRfuLinkStatus->connSlotFlag = 0;
gRfuLinkStatus->linkLossSlotFlag = 0;
gRfuLinkStatus->getNameFlag = 0;
}
void rfu_REQ_pollSearchChild(void)
{
STWI_set_Callback_M(rfu_CB_pollAndEndSearchChild);
STWI_send_SC_PollingREQ();
}
void rfu_REQ_endSearchChild(void)
{
STWI_set_Callback_M(rfu_CB_pollAndEndSearchChild);
STWI_send_SC_EndREQ();
}
static void rfu_CB_pollAndEndSearchChild(u8 reqCommand, u16 reqResult)
{
if (reqResult == 0)
rfu_STC_readChildList();
if (reqCommand == ID_SC_POLL_REQ)
{
if (gRfuLinkStatus->my.id == 0)
{
STWI_set_Callback_M(rfu_CB_defaultCallback);
STWI_send_SystemStatusREQ();
if (STWI_poll_CommandEnd() == 0)
gRfuLinkStatus->my.id = *(u16 *)&gRfuFixed->STWIBuffer->rxPacketAlloc.rfuPacket32.data[0];
}
}
else if (reqCommand == ID_SC_END_REQ)
{
if (gRfuLinkStatus->parentChild == MODE_NEUTRAL)
gRfuLinkStatus->my.id = 0;
gRfuStatic->SCStartFlag = 0;
}
rfu_STC_REQ_callback(reqCommand, reqResult);
}
static void rfu_STC_readChildList(void)
{
u8 numSlots = gRfuFixed->STWIBuffer->rxPacketAlloc.rfuPacket8.data[1];
u8 *data_p;
u8 bm_slot_id;
#if LIBRFU_VERSION < 1026
u8 true_slots[RFU_CHILD_MAX];
if (numSlots != 0)
{
u8 i;
u32 stwiParam = gRfuFixed->STWIBuffer->rxPacketAlloc.rfuPacket32.data[0];
STWI_set_Callback_M(rfu_CB_defaultCallback);
STWI_send_LinkStatusREQ();
if (STWI_poll_CommandEnd() == 0)
{
data_p = &gRfuFixed->STWIBuffer->rxPacketAlloc.rfuPacket8.data[4];
for (i = 0; i < RFU_CHILD_MAX; ++i)
true_slots[i] = *data_p++;
}
gRfuFixed->STWIBuffer->rxPacketAlloc.rfuPacket32.data[0] = stwiParam;
}
#endif
for (data_p = &gRfuFixed->STWIBuffer->rxPacketAlloc.rfuPacket8.data[4];
numSlots != 0;
data_p += 4)
{
bm_slot_id = data_p[2];
if (bm_slot_id < RFU_CHILD_MAX && !((gRfuLinkStatus->connSlotFlag >> bm_slot_id) & 1) && !((gRfuLinkStatus->linkLossSlotFlag >> bm_slot_id) & 1))
{
#if LIBRFU_VERSION < 1026
if (true_slots[bm_slot_id] != 0)
++gRfuStatic->lsFixedCount[bm_slot_id];
if (gRfuStatic->lsFixedCount[bm_slot_id] >= 4)
{
gRfuStatic->lsFixedCount[bm_slot_id] = 0;
gRfuLinkStatus->strength[bm_slot_id] = 255;
gRfuLinkStatus->connSlotFlag |= 1 << bm_slot_id;
++gRfuLinkStatus->connCount;
gRfuLinkStatus->partner[bm_slot_id].id = *(u16 *)data_p;
gRfuLinkStatus->partner[bm_slot_id].slot = bm_slot_id;
gRfuLinkStatus->parentChild = MODE_PARENT;
gRfuStatic->flags &= 0x7F;
gRfuStatic->cidBak[bm_slot_id] = gRfuLinkStatus->partner[bm_slot_id].id;
}
#else
gRfuStatic->lsFixedCount[bm_slot_id] = 0xF0;
gRfuLinkStatus->strength[bm_slot_id] = 16;
gRfuLinkStatus->connSlotFlag |= 1 << bm_slot_id;
++gRfuLinkStatus->connCount;
gRfuLinkStatus->partner[bm_slot_id].id = *(u16 *)data_p;
gRfuLinkStatus->partner[bm_slot_id].slot = bm_slot_id;
gRfuLinkStatus->parentChild = MODE_PARENT;
gRfuStatic->flags &= 0x7F;
gRfuStatic->cidBak[bm_slot_id] = gRfuLinkStatus->partner[bm_slot_id].id;
#endif
}
--numSlots;
}
}
void rfu_REQ_startSearchParent(void)
{
STWI_set_Callback_M(rfu_CB_startSearchParent);
STWI_send_SP_StartREQ();
}
static void rfu_CB_startSearchParent(u8 reqCommand, u16 reqResult)
{
if (reqResult == 0)
rfu_STC_clearLinkStatus(MODE_CHILD);
rfu_STC_REQ_callback(reqCommand, reqResult);
}
void rfu_REQ_pollSearchParent(void)
{
STWI_set_Callback_M(rfu_CB_pollSearchParent);
STWI_send_SP_PollingREQ();
}
static void rfu_CB_pollSearchParent(u8 reqCommand, u16 reqResult)
{
if (reqResult == 0)
rfu_STC_readParentCandidateList();
rfu_STC_REQ_callback(reqCommand, reqResult);
}
void rfu_REQ_endSearchParent(void)
{
STWI_set_Callback_M(rfu_STC_REQ_callback);
STWI_send_SP_EndREQ();
}
static void rfu_STC_readParentCandidateList(void)
{
u8 numSlots, i, check_sum, my_check_sum, j;
u8 *uname_p, *packet_p;
struct RfuTgtData *target;
CpuFill16(0, gRfuLinkStatus->partner, sizeof(gRfuLinkStatus->partner));
packet_p = &gRfuFixed->STWIBuffer->rxPacketAlloc.rfuPacket8.data[0];
numSlots = packet_p[1];
packet_p += 4;
gRfuLinkStatus->findParentCount = 0;
for (i = 0; i < RFU_CHILD_MAX && numSlots != 0; ++i)
{
numSlots -= 7;
uname_p = packet_p + 6;
packet_p += 19;
check_sum = ~*packet_p;
++packet_p;
my_check_sum = 0;
for (j = 0; j < 8; ++j)
{
my_check_sum += *packet_p++;
my_check_sum += *uname_p++;
}
if (my_check_sum == check_sum)
{
packet_p -= 28;
target = &gRfuLinkStatus->partner[gRfuLinkStatus->findParentCount];
target->id = *(u16 *)packet_p;
packet_p += 2;
target->slot = *packet_p;
packet_p += 2;
target->serialNo = *(u16 *)packet_p & 0x7FFF;
if (*(u16 *)packet_p & 0x8000)
target->mbootFlag = 1;
else
target->mbootFlag = 0;
packet_p += 2;
for (j = 0; j < RFU_GAME_NAME_LENGTH; ++j)
target->gname[j] = *packet_p++;
++packet_p;
for (j = 0; j < PLAYER_NAME_LENGTH + 1; ++j)
target->uname[j] = *packet_p++;
++gRfuLinkStatus->findParentCount;
}
}
}
void rfu_REQ_startConnectParent(u16 pid)
{
u16 result = 0;
u8 i;
for (i = 0; i < RFU_CHILD_MAX && gRfuLinkStatus->partner[i].id != pid; ++i)
;
if (i == RFU_CHILD_MAX)
result = ERR_PID_NOT_FOUND;
if (result == 0)
{
gRfuStatic->tryPid = pid;
STWI_set_Callback_M(rfu_STC_REQ_callback);
STWI_send_CP_StartREQ(pid);
}
else
{
rfu_STC_REQ_callback(ID_CP_START_REQ, result);
}
}
void rfu_REQ_pollConnectParent(void)
{
STWI_set_Callback_M(rfu_CB_pollConnectParent);
STWI_send_CP_PollingREQ();
}
static void rfu_CB_pollConnectParent(u8 reqCommand, u16 reqResult)
{
u16 id;
u8 slot;
u8 bm_slot_flag, i;
struct RfuTgtData *target_p = NULL;
struct RfuTgtData target_local;
if (reqResult == 0)
{
id = gRfuFixed->STWIBuffer->rxPacketAlloc.rfuPacket32.data[0];
slot = gRfuFixed->STWIBuffer->rxPacketAlloc.rfuPacket8.data[6];
if (gRfuFixed->STWIBuffer->rxPacketAlloc.rfuPacket8.data[7] == 0)
{
bm_slot_flag = 1 << slot;
if (!(bm_slot_flag & gRfuLinkStatus->connSlotFlag))
{
gRfuLinkStatus->connSlotFlag |= bm_slot_flag;
gRfuLinkStatus->linkLossSlotFlag &= ~bm_slot_flag;
gRfuLinkStatus->my.id = id;
++gRfuLinkStatus->connCount;
gRfuLinkStatus->parentChild = MODE_CHILD;
gRfuStatic->flags |= 0x80;
for (i = 0; i < RFU_CHILD_MAX; ++i)
{
if (gRfuLinkStatus->partner[i].id == gRfuStatic->tryPid)
{
if (gRfuLinkStatus->findParentCount != 0)
{
target_p = &target_local;
CpuCopy16(&gRfuLinkStatus->partner[i], &target_local, sizeof(struct RfuTgtData));
CpuFill16(0, gRfuLinkStatus->partner, sizeof(gRfuLinkStatus->partner));
gRfuLinkStatus->findParentCount = 0;
}
else
{
target_p = &gRfuLinkStatus->partner[i];
}
break;
}
}
if (i < RFU_CHILD_MAX)
{
CpuCopy16(target_p, &gRfuLinkStatus->partner[slot], sizeof(struct RfuTgtData));
gRfuLinkStatus->partner[slot].slot = slot;
}
}
}
}
rfu_STC_REQ_callback(reqCommand, reqResult);
}
u16 rfu_getConnectParentStatus(u8 *status, u8 *connectSlotNo)
{
u8 *packet_p;
*status = 0xFF;
packet_p = gRfuFixed->STWIBuffer->rxPacketAlloc.rfuPacket8.data;
if (packet_p[0] == 0xa0 || packet_p[0] == 0xa1)
{
packet_p += 6;
*connectSlotNo = packet_p[0];
*status = packet_p[1];
return 0;
}
return ERR_REQ_CMD_ID;
}
void rfu_REQ_endConnectParent(void)
{
STWI_set_Callback_M(rfu_CB_pollConnectParent);
STWI_send_CP_EndREQ();
if (gRfuFixed->STWIBuffer->rxPacketAlloc.rfuPacket8.data[6] < 4)
gRfuStatic->linkEmergencyFlag[gRfuFixed->STWIBuffer->rxPacketAlloc.rfuPacket8.data[6]] = 0;
}
u16 rfu_syncVBlank(void)
{
u8 masterSlave, i;
s32 bmSlotFlag;
rfu_NI_checkCommFailCounter();
if (gRfuLinkStatus->parentChild == MODE_NEUTRAL)
return 0;
if (gRfuStatic->nowWatchInterval != 0)
--gRfuStatic->nowWatchInterval;
masterSlave = rfu_getMasterSlave();
if (!(gRfuStatic->flags & 2))
{
if (masterSlave == AGB_CLK_SLAVE)
{
gRfuStatic->flags |= 4;
gRfuStatic->watchdogTimer = 360;
}
}
else if (masterSlave != AGB_CLK_SLAVE)
{
gRfuStatic->flags &= 0xFB;
}
if (masterSlave != AGB_CLK_SLAVE)
gRfuStatic->flags &= 0xFD;
else
gRfuStatic->flags |= 2;
if (!(gRfuStatic->flags & 4))
return 0;
if (gRfuStatic->watchdogTimer == 0)
{
gRfuStatic->flags &= 0xFB;
bmSlotFlag = gRfuLinkStatus->connSlotFlag | gRfuLinkStatus->linkLossSlotFlag;
for (i = 0; i < RFU_CHILD_MAX; ++i)
if ((bmSlotFlag >> i) & 1)
rfu_STC_removeLinkData(i, 1);
gRfuLinkStatus->parentChild = MODE_NEUTRAL;
return 1;
}
--gRfuStatic->watchdogTimer;
return 0;
}
u16 rfu_REQBN_watchLink(u16 reqCommandId, u8 *bmLinkLossSlot, u8 *linkLossReason, u8 *parentBmLinkRecoverySlot)
{
u8 reasonMaybe = 0;
u8 reqResult = 0;
u8 i;
s32 stwiCommand, stwiParam;
u8 *packet_p;
u8 to_req_disconnect, newLinkLossFlag, num_packets, connSlotFlag, to_disconnect;
*bmLinkLossSlot = 0;
*linkLossReason = REASON_DISCONNECTED;
*parentBmLinkRecoverySlot = 0;
if (gRfuLinkStatus->parentChild == MODE_NEUTRAL || gSTWIStatus->msMode == 0)
return 0;
if (gRfuStatic->flags & 4)
gRfuStatic->watchdogTimer = 360;
if (gRfuStatic->nowWatchInterval == 0)
{
#if LIBRFU_VERSION < 1026
gRfuStatic->nowWatchInterval = gRfuLinkStatus->watchInterval;
#else
gRfuStatic->nowWatchInterval = 4;
#endif
reasonMaybe = 1;
}
if ((u8)reqCommandId == ID_DISCONNECTED_AND_CHANGE_REQ)
{
u8 *packet_p_2 = gRfuFixed->STWIBuffer->rxPacketAlloc.rfuPacket8.data;
*bmLinkLossSlot = packet_p_2[4];
*linkLossReason = packet_p_2[5];
if (*linkLossReason == REASON_LINK_LOSS)
*bmLinkLossSlot = gRfuLinkStatus->connSlotFlag;
reasonMaybe = 2;
}
else
{
if (reqCommandId == 0x0136)
{
newLinkLossFlag = gRfuFixed->STWIBuffer->rxPacketAlloc.rfuPacket8.data[5];
newLinkLossFlag ^= gRfuLinkStatus->connSlotFlag;
*bmLinkLossSlot = newLinkLossFlag & gRfuLinkStatus->connSlotFlag;
*linkLossReason = REASON_LINK_LOSS;
for (i = 0; i < RFU_CHILD_MAX; ++i)
{
if ((*bmLinkLossSlot >> i) & 1)
{
gRfuLinkStatus->strength[i] = 0;
rfu_STC_removeLinkData(i, 0);
}
}
}
if (reasonMaybe == 0)
return 0;
}
stwiCommand = gRfuFixed->STWIBuffer->rxPacketAlloc.rfuPacket32.command;
stwiParam = gRfuFixed->STWIBuffer->rxPacketAlloc.rfuPacket32.data[0];
STWI_set_Callback_M(rfu_CB_defaultCallback);
STWI_send_LinkStatusREQ();
reqResult = STWI_poll_CommandEnd();
if (reqResult == 0)
{
packet_p = &gRfuFixed->STWIBuffer->rxPacketAlloc.rfuPacket8.data[4];
for (i = 0; i < RFU_CHILD_MAX; ++i)
gRfuLinkStatus->strength[i] = *packet_p++;
to_req_disconnect = 0;
i = 0;
}
else
{
rfu_STC_REQ_callback(ID_LINK_STATUS_REQ, reqResult);
return reqResult;
}
for (; i < RFU_CHILD_MAX; ++i)
{
#if LIBRFU_VERSION >= 1026
if (gRfuStatic->lsFixedCount[i] != 0)
{
gRfuStatic->lsFixedCount[i] -= 4;
if (gRfuLinkStatus->strength[i] <= 15)
gRfuLinkStatus->strength[i] = 16;
}
#endif
newLinkLossFlag = 1 << i;
if (reqResult == 0)
{
if (reasonMaybe == 1 && (gRfuLinkStatus->connSlotFlag & newLinkLossFlag))
{
if (gRfuLinkStatus->strength[i] == 0)
{
if (gRfuLinkStatus->parentChild == MODE_PARENT)
{
++gRfuStatic->linkEmergencyFlag[i];
if (gRfuStatic->linkEmergencyFlag[i] > 3)
{
*bmLinkLossSlot |= newLinkLossFlag;
*linkLossReason = REASON_LINK_LOSS;
}
}
else
{
STWI_send_SystemStatusREQ();
if (STWI_poll_CommandEnd() == 0)
{
if (gRfuFixed->STWIBuffer->rxPacketAlloc.rfuPacket8.data[7] == 0)
{
*bmLinkLossSlot |= newLinkLossFlag;
*linkLossReason = REASON_LINK_LOSS;
}
else
{
if (++gRfuStatic->linkEmergencyFlag[i] > gRfuStatic->linkEmergencyLimit)
{
gRfuStatic->linkEmergencyFlag[i] = 0;
STWI_send_DisconnectREQ(gRfuLinkStatus->connSlotFlag);
STWI_poll_CommandEnd();
*bmLinkLossSlot |= newLinkLossFlag;
*linkLossReason = REASON_LINK_LOSS;
}
}
}
}
}
else