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#include "ultra64.h"
OSPifRam __osPfsPifRam;
s32 osPfsIsPlug(OSMesgQueue* mq, u8* pattern) {
s32 ret = 0;
OSMesg msg;
u8 bitpattern;
OSContStatus contData[MAXCONTROLLERS];
s32 channel;
u8 bits = 0;
s32 crcErrorCount = 3;
__osSiGetAccess();
do {
__osPfsRequestData(CONT_CMD_REQUEST_STATUS);
ret = __osSiRawStartDma(OS_WRITE, &__osPfsPifRam);
osRecvMesg(mq, &msg, OS_MESG_BLOCK);
ret = __osSiRawStartDma(OS_READ, &__osPfsPifRam);
osRecvMesg(mq, &msg, OS_MESG_BLOCK);
__osPfsGetInitData(&bitpattern, &contData[0]);
for (channel = 0; channel < __osMaxControllers; channel++) {
if ((contData[channel].status & CONT_ADDR_CRC_ER) == 0) {
crcErrorCount--;
break;
}
}
if (channel == __osMaxControllers) {
crcErrorCount = 0;
}
} while (crcErrorCount > 0);
for (channel = 0; channel < __osMaxControllers; channel++) {
if ((contData[channel].errno == 0) && ((contData[channel].status & CONT_CARD_ON) != 0)) {
bits |= (1 << channel);
}
}
__osSiRelAccess();
*pattern = bits;
return ret;
}
void __osPfsRequestData(u8 cmd) {
u8* ptr = (u8*)&__osPfsPifRam;
__OSContRequesFormat req;
s32 i;
__osContLastCmd = cmd;
__osPfsPifRam.status = CONT_CMD_EXE;
req.align = CONT_CMD_NOP;
req.txsize = CONT_CMD_REQUEST_STATUS_TX;
req.rxsize = CONT_CMD_REQUEST_STATUS_RX;
req.cmd = cmd;
req.typeh = CONT_CMD_NOP;
req.typel = CONT_CMD_NOP;
req.status = CONT_CMD_NOP;
req.align1 = CONT_CMD_NOP;
for (i = 0; i < __osMaxControllers; i++) {
*((__OSContRequesFormat*)ptr) = req;
ptr += sizeof(req);
}
*ptr = CONT_CMD_END;
}
void __osPfsGetInitData(u8* pattern, OSContStatus* contData) {
u8* ptr;
__OSContRequesFormat req;
s32 i;
u8 bits = 0;
ptr = (u8*)&__osPfsPifRam;
for (i = 0; i < __osMaxControllers; i++, ptr += sizeof(req), contData++) {
req = *((__OSContRequesFormat*)ptr);
contData->errno = CHNL_ERR(req);
if (contData->errno) {
continue;
}
contData->type = ((req.typel << 8) | req.typeh);
#ifdef BBPLAYER
contData->status = __osBbPakAddress[i] != 0;
#else
contData->status = req.status;
#endif
bits |= (1 << i);
}
#ifdef BBPLAYER
if (__osBbIsBb && __osBbHackFlags != 0) {
OSContStatus tmp;
bits = (bits & ~((1 << __osBbHackFlags) | 1)) | ((bits & 1) << __osBbHackFlags) |
((bits & (1 << __osBbHackFlags)) >> __osBbHackFlags);
contData -= __osMaxControllers;
tmp = contData[0];
contData[0] = contData[__osBbHackFlags];
contData[__osBbHackFlags] = tmp;
}
#endif
*pattern = bits;
}
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