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/**
* File: voicecontread2.c
*/
#include "PRinternal/macros.h"
#include "PR/os_internal.h"
#include "PRinternal/controller.h"
#include "PR/os_voice.h"
#include "voiceinternal.h"
#include "PRinternal/controller_voice.h"
#include "PRinternal/siint.h"
#define READ2FORMAT(ptr) ((__OSVoiceRead2Format*)(ptr))
s32 __osVoiceContRead2(OSMesgQueue* mq, int channel, u16 address, u8* buffer) {
s32 ret = 0;
u8 status;
int i;
u8* ptr;
int retry = 2;
__osSiGetAccess();
do {
ptr = (u8*)&__osPfsPifRam.ramarray;
if ((__osContLastCmd != CONT_CMD_READ2_VOICE) || ((u32)__osPfsLastChannel != channel)) {
__osContLastCmd = CONT_CMD_READ2_VOICE;
__osPfsLastChannel = channel;
for (i = 0; i < channel; i++) { *ptr++ = CONT_CMD_REQUEST_STATUS; }
__osPfsPifRam.pifstatus = CONT_CMD_EXE;
READ2FORMAT(ptr)->dummy = CONT_CMD_NOP;
READ2FORMAT(ptr)->txsize = CONT_CMD_READ2_VOICE_TX;
READ2FORMAT(ptr)->rxsize = CONT_CMD_READ2_VOICE_RX;
READ2FORMAT(ptr)->cmd = CONT_CMD_READ2_VOICE;
READ2FORMAT(ptr)->datacrc = 0xFF;
ptr[sizeof(__OSVoiceRead2Format)] = CONT_CMD_END;
} else {
ptr += channel;
}
READ2FORMAT(ptr)->addrh = address >> 3;
READ2FORMAT(ptr)->addrl = (address << 5) | __osContAddressCrc(address);
ret = __osSiRawStartDma(OS_WRITE, &__osPfsPifRam);
osRecvMesg(mq, NULL, OS_MESG_BLOCK);
ret = __osSiRawStartDma(OS_READ, &__osPfsPifRam);
osRecvMesg(mq, NULL, OS_MESG_BLOCK);
ret = CHNL_ERR(*READ2FORMAT(ptr));
if (ret == 0) {
if (__osVoiceContDataCrc(READ2FORMAT(ptr)->data, ARRLEN(READ2FORMAT(ptr)->data)) !=
READ2FORMAT(ptr)->datacrc) {
ret = __osVoiceGetStatus(mq, channel, &status);
if (ret != 0) {
break;
} else {
ret = CONT_ERR_CONTRFAIL;
}
} else {
bcopy(READ2FORMAT(ptr)->data, buffer, ARRLEN(READ2FORMAT(ptr)->data));
}
} else {
ret = CONT_ERR_NO_CONTROLLER;
}
} while ((ret == CONT_ERR_CONTRFAIL) && (retry-- >= 0));
__osSiRelAccess();
return ret;
}
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