mirror of
https://github.com/HarbourMasters/Shipwright.git
synced 2024-11-11 12:05:09 -05:00
95 lines
2.4 KiB
C
95 lines
2.4 KiB
C
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#include "global.h"
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OSPifRam __osPifInternalBuff;
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u8 __osContLastPoll;
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u8 __osMaxControllers; // always 4
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OSTimer __osEepromTimer;
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OSMesgQueue __osEepromTimerMsgQ;
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OSMesg __osEepromTimerMsg;
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u32 gOSContInitialized = 0;
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#define HALF_SECOND OS_USEC_TO_CYCLES(500000)
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s32 osContInit(OSMesgQueue* mq, u8* ctlBitfield, OSContStatus* status) {
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OSMesg mesg;
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s32 ret = 0;
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OSTime currentTime;
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OSTimer timer;
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OSMesgQueue timerqueue;
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if (gOSContInitialized) {
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return 0;
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}
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gOSContInitialized = 1;
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currentTime = osGetTime();
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if (HALF_SECOND > currentTime) {
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osCreateMesgQueue(&timerqueue, &mesg, 1);
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osSetTimer(&timer, HALF_SECOND - currentTime, 0, &timerqueue, &mesg);
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osRecvMesg(&timerqueue, &mesg, OS_MESG_BLOCK);
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}
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__osMaxControllers = MAXCONTROLLERS;
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__osPackRequestData(CONT_CMD_REQUEST_STATUS);
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ret = __osSiRawStartDma(OS_WRITE, &__osPifInternalBuff);
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osRecvMesg(mq, &mesg, OS_MESG_BLOCK);
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ret = __osSiRawStartDma(OS_READ, &__osPifInternalBuff);
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osRecvMesg(mq, &mesg, OS_MESG_BLOCK);
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__osContGetInitData(ctlBitfield, status);
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__osContLastPoll = CONT_CMD_REQUEST_STATUS;
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__osSiCreateAccessQueue();
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osCreateMesgQueue(&__osEepromTimerMsgQ, &__osEepromTimerMsg, 1);
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return ret;
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}
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void __osContGetInitData(u8* ctlBitfield, OSContStatus* status) {
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u8* bufptr;
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__OSContRequestHeader req;
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s32 i;
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u8 bitfieldTemp = 0;
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bufptr = (u8*)(&__osPifInternalBuff);
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for (i = 0; i < __osMaxControllers; i++, bufptr += sizeof(req), status++) {
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req = *((__OSContRequestHeader*)bufptr);
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status->errno = (req.rxsize & 0xC0) >> 4;
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if (status->errno) {
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continue;
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}
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status->type = req.typel << 8 | req.typeh;
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status->status = req.status;
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bitfieldTemp |= 1 << i;
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}
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*ctlBitfield = bitfieldTemp;
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}
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void __osPackRequestData(u8 poll) {
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u8* bufptr;
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__OSContRequestHeader req;
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s32 i;
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for (i = 0; i < 0xF; i++) {
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__osPifInternalBuff.ram[i] = 0;
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}
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__osPifInternalBuff.status = 1;
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bufptr = (u8*)(&__osPifInternalBuff);
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req.align = 0xFF;
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req.txsize = 1;
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req.rxsize = 3;
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req.poll = poll;
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req.typeh = 0xFF;
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req.typel = 0xFF;
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req.status = 0xFF;
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req.align1 = 0xFF;
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for (i = 0; i < __osMaxControllers; i++) {
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*((__OSContRequestHeader*)bufptr) = req;
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bufptr += sizeof(req);
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}
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*((u8*)bufptr) = 254;
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}
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