mirror of
https://github.com/perfect-dark-pc-port/perfect_dark.git
synced 2026-10-24 00:02:43 +02:00
114 lines
2.1 KiB
C
114 lines
2.1 KiB
C
#include "versions.h"
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#include <rcp.h>
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#include "controller.h"
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#include "siint.h"
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#include "constants.h"
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ALIGNED16 OSPifRam __osEepPifRam;
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#if VERSION >= VERSION_JPN_FINAL
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u32 var8009d010pf[4];
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s32 g_JpnMaxCacheItems;
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#elif VERSION >= VERSION_PAL_BETA
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u32 var8009d010pf[4];
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#endif
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void __osPackEepReadData(u8 address);
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s32 osEepromRead(OSMesgQueue *mq, u8 address, u8 *buffer)
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{
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s32 ret;
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int i;
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u16 type;
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u8 *ptr;
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OSContStatus sdata;
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__OSContEepromFormat eepromformat;
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ret = 0;
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i = 0;
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ptr = (u8 *)&__osEepPifRam.ramarray;
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__osSiGetAccess();
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ret = __osEepStatus(mq, &sdata);
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if (ret == 0) {
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type = sdata.type & (CONT_EEPROM | CONT_EEP16K);
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switch (type) {
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case CONT_EEPROM:
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// @bug: Should be > EEPROM_MAXBLOCKS
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if (address >= EEPROM_MAXBLOCKS) {
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ret = -1;
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}
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break;
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case CONT_EEPROM | CONT_EEP16K:
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// @bug: Should be > EEP16K_MAXBLOCKS
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if (address >= EEP16K_MAXBLOCKS) {
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ret = -1;
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}
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break;
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default:
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if (1);
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ret = CONT_NO_RESPONSE_ERROR;
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break;
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}
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}
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if (ret != 0) {
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__osSiRelAccess();
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return ret;
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}
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while (sdata.status & CONT_EEPROM_BUSY) {
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__osEepStatus(mq, &sdata);
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}
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__osPackEepReadData(address);
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ret = __osSiRawStartDma(OS_WRITE, &__osEepPifRam);
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osRecvMesg(mq, NULL, OS_MESG_BLOCK);
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ret = __osSiRawStartDma(OS_READ, &__osEepPifRam);
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__osContLastCmd = CONT_CMD_READ_EEPROM;
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osRecvMesg(mq, NULL, OS_MESG_BLOCK);
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for (i = 0; i < 4; i++) {
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ptr++;
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}
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eepromformat = *(__OSContEepromFormat *)ptr;
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ret = CHNL_ERR(eepromformat);
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if (ret == 0) {
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for (i = 0; i < ARRLEN(eepromformat.data); i++) {
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*buffer++ = eepromformat.data[i];
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}
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}
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__osSiRelAccess();
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return ret;
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}
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void __osPackEepReadData(u8 address)
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{
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u8 *ptr;
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__OSContEepromFormat eepromformat;
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int i;
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ptr = (u8 *)&__osEepPifRam.ramarray;
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__osEepPifRam.pifstatus = CONT_CMD_EXE;
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eepromformat.txsize = CONT_CMD_READ_EEPROM_TX;
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eepromformat.rxsize = CONT_CMD_READ_EEPROM_RX;
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eepromformat.cmd = CONT_CMD_READ_EEPROM;
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eepromformat.address = address;
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for (i = 0; i < 4; i++) {
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*ptr++ = 0;
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}
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*(__OSContEepromFormat *)(ptr) = eepromformat;
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ptr += sizeof(__OSContEepromFormat);
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ptr[0] = CONT_CMD_END;
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}
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