diff options
Diffstat (limited to 'src/link.c')
| -rw-r--r-- | src/link.c | 51 |
1 files changed, 49 insertions, 2 deletions
diff --git a/src/link.c b/src/link.c index eb6d573d5..a57385a59 100644 --- a/src/link.c +++ b/src/link.c @@ -60,7 +60,7 @@ IWRAM_DATA u32 sPlayerDataExchangeStatus; IWRAM_DATA u32 gUnknown_03000D60; IWRAM_DATA u8 sLinkTestLastBlockSendPos; ALIGNED() IWRAM_DATA u8 sLinkTestLastBlockRecvPos[MAX_LINK_PLAYERS]; -IWRAM_DATA u8 gUnknown_03000D6C; +IWRAM_DATA u8 sNumVBlanksWithoutSerialIntr; IWRAM_DATA bool8 gUnknown_03000D6D; IWRAM_DATA u16 sSendNonzeroCheck; IWRAM_DATA u16 gUnknown_03000D70; @@ -159,6 +159,7 @@ static void CheckMasterOrSlave(void); static void InitTimer(void); static void EnqueueSendCmd(u16 *sendCmd); static void DequeueRecvCmds(u16 (*recvCmds)[CMD_LENGTH]); +void StartTransfer(void); // .rodata @@ -1919,7 +1920,7 @@ static void EnableSerial(void) EnableInterrupts(INTR_FLAG_SERIAL); REG_SIOMLT_SEND = 0; CpuFill32(0, &gLink, sizeof(gLink)); - gUnknown_03000D6C = 0; + sNumVBlanksWithoutSerialIntr = 0; sSendNonzeroCheck = 0; gUnknown_03000D70 = 0; gUnknown_03000D72 = 0; @@ -2136,3 +2137,49 @@ static void DequeueRecvCmds(u16 (*recvCmds)[CMD_LENGTH]) REG_IME = gLinkSavedIme; } +void LinkVSync(void) +{ + if (gLink.isMaster) + { + switch (gLink.state) + { + case LINK_STATE_CONN_ESTABLISHED: + if (gLink.serialIntrCounter < 9) + { + if (gLink.hardwareError != TRUE) + { + gLink.lag = LAG_MASTER; + } + else + { + StartTransfer(); + } + } + else if (gLink.lag != LAG_MASTER) + { + gLink.serialIntrCounter = 0; + StartTransfer(); + } + break; + case LINK_STATE_HANDSHAKE: + StartTransfer(); + break; + } + } + else if (gLink.state == LINK_STATE_CONN_ESTABLISHED || gLink.state == LINK_STATE_HANDSHAKE) + { + if (++ sNumVBlanksWithoutSerialIntr > 10) + { + if (gLink.state == LINK_STATE_CONN_ESTABLISHED) + { + gLink.lag = LAG_SLAVE; + } + if (gLink.state == LINK_STATE_HANDSHAKE) + { + gLink.playerCount = 0; + gLink.link_field_F = FALSE; + } + } + } +} + |