128 lines
3.2 KiB
C
128 lines
3.2 KiB
C
#include <dolphin/card.h>
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#include <dolphin/dsp.h>
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#include <dolphin/dvd.h>
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#include <dolphin/os.h>
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#include <dolphin/CARDPriv.h>
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static void EraseCallback(s32 chan, s32 result);
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static void WriteCallback(s32 chan, s32 result)
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{
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CARDControl *card;
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CARDCallback callback;
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u16 *fat;
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CARDDir *dir;
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CARDDir *ent;
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CARDFileInfo *fileInfo;
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card = &__CARDBlock[chan];
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if (result < 0) {
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goto error;
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}
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fileInfo = card->fileInfo;
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if (fileInfo->length < 0) {
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result = CARD_RESULT_CANCELED;
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goto error;
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}
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fileInfo->length -= card->sectorSize;
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if (fileInfo->length <= 0) {
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dir = __CARDGetDirBlock(card);
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ent = &dir[fileInfo->fileNo];
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ent->time = (u32)OSTicksToSeconds(OSGetTime());
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callback = card->apiCallback;
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card->apiCallback = 0;
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result = __CARDUpdateDir(chan, callback);
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}
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else {
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fat = __CARDGetFatBlock(card);
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fileInfo->offset += card->sectorSize;
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fileInfo->iBlock = fat[fileInfo->iBlock];
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if (!CARDIsValidBlockNo(card, fileInfo->iBlock)) {
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result = CARD_RESULT_BROKEN;
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goto error;
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}
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result = __CARDEraseSector(chan, card->sectorSize * (u32)fileInfo->iBlock, EraseCallback);
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}
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if (result < 0) {
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goto error;
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}
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return;
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error:
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callback = card->apiCallback;
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card->apiCallback = 0;
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__CARDPutControlBlock(card, result);
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callback(chan, result);
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}
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static void EraseCallback(s32 chan, s32 result)
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{
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CARDControl *card;
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CARDCallback callback;
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CARDFileInfo *fileInfo;
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card = &__CARDBlock[chan];
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if (result < 0) {
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goto error;
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}
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fileInfo = card->fileInfo;
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result = __CARDWrite(chan, card->sectorSize * (u32)fileInfo->iBlock, card->sectorSize, card->buffer, WriteCallback);
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if (result < 0) {
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goto error;
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}
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return;
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error:
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callback = card->apiCallback;
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card->apiCallback = 0;
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__CARDPutControlBlock(card, result);
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callback(chan, result);
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}
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s32 CARDWriteAsync(CARDFileInfo *fileInfo, const void *buf, s32 length, s32 offset, CARDCallback callback)
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{
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CARDControl *card;
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s32 result;
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CARDDir *dir;
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CARDDir *ent;
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result = __CARDSeek(fileInfo, length, offset, &card);
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if (result < 0) {
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return result;
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}
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if (OFFSET(offset, card->sectorSize) != 0 || OFFSET(length, card->sectorSize) != 0) {
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return __CARDPutControlBlock(card, CARD_RESULT_FATAL_ERROR);
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}
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dir = __CARDGetDirBlock(card);
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ent = &dir[fileInfo->fileNo];
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result = __CARDAccess(card, ent);
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if (result < 0) {
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return __CARDPutControlBlock(card, result);
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}
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DCStoreRange((void *)buf, (u32)length);
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card->apiCallback = callback ? callback : __CARDDefaultApiCallback;
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card->buffer = (void *)buf;
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result = __CARDEraseSector(fileInfo->chan, card->sectorSize * (u32)fileInfo->iBlock, EraseCallback);
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if (result < 0) {
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__CARDPutControlBlock(card, result);
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}
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return result;
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}
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s32 CARDWrite(CARDFileInfo *fileInfo, const void *buf, s32 length, s32 offset)
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{
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s32 result = CARDWriteAsync(fileInfo, buf, length, offset, __CARDSyncCallback);
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if (result < 0) {
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return result;
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}
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return __CARDSync(fileInfo->chan);
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}
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