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SDCARD_READONLY (#17884)

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This commit is contained in:
Leandro A. F. Pereira
2020-05-30 21:59:29 -07:00
committed by GitHub
parent 2ad3da98d4
commit 801f99edad
7 changed files with 108 additions and 40 deletions
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26
Marlin/src/sd/SdVolume.cpp
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@@ -46,6 +46,8 @@
// find a contiguous group of clusters
bool SdVolume::allocContiguous(uint32_t count, uint32_t* curCluster) {
if (ENABLED(SDCARD_READONLY)) return false;
// start of group
uint32_t bgnCluster;
// end of group
@@ -117,18 +119,20 @@ bool SdVolume::allocContiguous(uint32_t count, uint32_t* curCluster) {
}
bool SdVolume::cacheFlush() {
if (cacheDirty_) {
if (!sdCard_->writeBlock(cacheBlockNumber_, cacheBuffer_.data))
return false;
// mirror FAT tables
if (cacheMirrorBlock_) {
if (!sdCard_->writeBlock(cacheMirrorBlock_, cacheBuffer_.data))
#if DISABLED(SDCARD_READONLY)
if (cacheDirty_) {
if (!sdCard_->writeBlock(cacheBlockNumber_, cacheBuffer_.data))
return false;
cacheMirrorBlock_ = 0;
// mirror FAT tables
if (cacheMirrorBlock_) {
if (!sdCard_->writeBlock(cacheMirrorBlock_, cacheBuffer_.data))
return false;
cacheMirrorBlock_ = 0;
}
cacheDirty_ = 0;
}
cacheDirty_ = 0;
}
#endif
return true;
}
@@ -190,6 +194,8 @@ bool SdVolume::fatGet(uint32_t cluster, uint32_t* value) {
// Store a FAT entry
bool SdVolume::fatPut(uint32_t cluster, uint32_t value) {
if (ENABLED(SDCARD_READONLY)) return false;
uint32_t lba;
// error if reserved cluster
if (cluster < 2) return false;