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#include "array_count.h"
#include "ultra64.h"
OSPifRam __osContPifRam;
u8 __osContLastCmd;
u8 __osMaxControllers; // always 4
#ifndef BBPLAYER
OSTimer __osEepromTimer;
#endif
OSMesgQueue __osEepromTimerMsgQueue;
OSMesg __osEepromTimerMsg;
u32 __osContInitialized = false;
#define HALF_SECOND OS_USEC_TO_CYCLES(500000)
s32 osContInit(OSMesgQueue* mq, u8* ctlBitfield, OSContStatus* status) {
OSMesg msg;
s32 ret = 0;
OSTime currentTime;
OSTimer timer;
OSMesgQueue timerMesgQueue;
if (__osContInitialized) {
return 0;
}
__osContInitialized = true;
currentTime = osGetTime();
if (currentTime < HALF_SECOND) {
osCreateMesgQueue(&timerMesgQueue, &msg, 1);
osSetTimer(&timer, HALF_SECOND - currentTime, 0, &timerMesgQueue, &msg);
osRecvMesg(&timerMesgQueue, &msg, OS_MESG_BLOCK);
}
__osMaxControllers = MAXCONTROLLERS;
__osPackRequestData(CONT_CMD_REQUEST_STATUS);
ret = __osSiRawStartDma(OS_WRITE, &__osContPifRam);
osRecvMesg(mq, &msg, OS_MESG_BLOCK);
ret = __osSiRawStartDma(OS_READ, &__osContPifRam);
osRecvMesg(mq, &msg, OS_MESG_BLOCK);
__osContGetInitData(ctlBitfield, status);
#ifdef BBPLAYER
__osContLastCmd = CONT_CMD_CHANNEL_RESET;
#else
__osContLastCmd = CONT_CMD_REQUEST_STATUS;
#endif
__osSiCreateAccessQueue();
osCreateMesgQueue(&__osEepromTimerMsgQueue, &__osEepromTimerMsg, 1);
return ret;
}
void __osContGetInitData(u8* ctlBitfield, OSContStatus* data) {
u8* ptr;
__OSContRequesFormat req;
s32 i;
u8 bits = 0;
ptr = (u8*)&__osContPifRam;
for (i = 0; i < __osMaxControllers; i++, ptr += sizeof(req), data++) {
req = *(__OSContRequesFormat*)ptr;
data->errno = CHNL_ERR(req);
if (data->errno) {
continue;
}
data->type = req.typel << 8 | req.typeh;
#ifdef BBPLAYER
data->status = __osBbPakAddress[i] != 0;
#else
data->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);
data -= __osMaxControllers;
tmp = data[0];
data[0] = data[__osBbHackFlags];
data[__osBbHackFlags] = tmp;
}
#endif
*ctlBitfield = bits;
}
void __osPackRequestData(u8 poll) {
u8* ptr;
__OSContRequesFormat req;
s32 i;
for (i = 0; i < ARRAY_COUNT(__osContPifRam.ram); i++) {
__osContPifRam.ram[i] = 0;
}
__osContPifRam.status = CONT_CMD_EXE;
ptr = (u8*)&__osContPifRam;
req.align = CONT_CMD_NOP;
req.txsize = CONT_CMD_RESET_TX;
req.rxsize = CONT_CMD_RESET_RX;
req.cmd = poll;
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;
}
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