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/**
* File: voicecontwrite4.c
*/
#include "ultra64.h"
#include "PR/controller_voice.h"
#include "PR/voiceinternal.h"
#include "PR/controller.h"
#include "macros.h"
#define WRITE4FORMAT(ptr) ((__OSVoiceWrite4Format*)(ptr))
s32 __osVoiceContWrite4(OSMesgQueue* mq, s32 channel, u16 address, u8 dst[4]) {
s32 errorCode;
u8 status;
u8* ptr;
s32 retryCount = 2;
s32 i;
u8 crc;
__osSiGetAccess();
do {
ptr = (u8*)&__osPfsPifRam.ramarray;
if ((__osContLastPoll != CONT_CMD_WRITE4_VOICE) || (channel != __osPfsLastChannel)) {
__osContLastPoll = CONT_CMD_WRITE4_VOICE;
__osPfsLastChannel = channel;
for (i = 0; i < channel; i++, *ptr++ = 0) {}
__osPfsPifRam.status = CONT_CMD_EXE;
WRITE4FORMAT(ptr)->dummy = CONT_CMD_NOP;
WRITE4FORMAT(ptr)->txsize = CONT_CMD_WRITE4_VOICE_TX;
WRITE4FORMAT(ptr)->rxsize = CONT_CMD_WRITE4_VOICE_RX;
WRITE4FORMAT(ptr)->cmd = CONT_CMD_WRITE4_VOICE;
WRITE4FORMAT(ptr)->datacrc = 0xFF;
ptr[sizeof(__OSVoiceWrite4Format)] = CONT_CMD_END;
} else {
ptr += channel;
}
WRITE4FORMAT(ptr)->addrh = address >> 3;
WRITE4FORMAT(ptr)->addrl = (address << 5) | __osContAddressCrc(address);
bcopy(dst, WRITE4FORMAT(ptr)->data, ARRAY_COUNT(WRITE4FORMAT(ptr)->data));
__osSiRawStartDma(OS_WRITE, &__osPfsPifRam);
crc = __osVoiceContDataCrc(dst, ARRAY_COUNT(WRITE4FORMAT(ptr)->data));
osRecvMesg(mq, NULL, OS_MESG_BLOCK);
__osSiRawStartDma(OS_READ, &__osPfsPifRam);
osRecvMesg(mq, NULL, OS_MESG_BLOCK);
errorCode = CHNL_ERR(*WRITE4FORMAT(ptr));
if (errorCode == 0) {
if (crc != WRITE4FORMAT(ptr)->datacrc) {
errorCode = __osVoiceGetStatus(mq, channel, &status);
if (errorCode != 0) {
break;
}
errorCode = CONT_ERR_CONTRFAIL;
}
} else {
errorCode = CONT_ERR_NO_CONTROLLER;
}
} while ((errorCode == CONT_ERR_CONTRFAIL) && (retryCount-- >= 0));
__osSiRelAccess();
return errorCode;
}
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