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Fix flash filesystem mass storage support for > 128MB flash

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The required padding would be calculated incorrectly if more than 128MB of flash was used for log files.
This commit is contained in:
Bruce Luckcuck 2019-10-07 10:20:25 -04:00
parent c6452a55cc
commit 7ef0daf854
1 changed files with 11 additions and 8 deletions
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19
src/main/msc/emfat_file.c
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@ -421,13 +421,14 @@ void emfat_init_files(void)
const int logCount = emfat_find_log(&entries[PREDEFINED_ENTRY_COUNT], EMFAT_MAX_LOG_ENTRY);
int entryIndex = PREDEFINED_ENTRY_COUNT + logCount;
const int usedSpace = flashfsIdentifyStartOfFreeSpace();
if (logCount > 0) {
// Create the all logs entry that represents all used flash space to
// allow downloading the entire log in one file
entries[entryIndex] = entriesPredefined[PREDEFINED_ENTRY_COUNT];
entry = &entries[entryIndex];
entry->curr_size = flashfsIdentifyStartOfFreeSpace();
entry->curr_size = usedSpace;
entry->max_size = entry->curr_size;
// This entry has timestamps corresponding to when the filesystem is mounted
emfat_set_entry_cma(entry);
@ -435,13 +436,15 @@ void emfat_init_files(void)
}
// Padding file to fill out the filesystem size to FILESYSTEM_SIZE_MB
entries[entryIndex] = entriesPredefined[PREDEFINED_ENTRY_COUNT + 1];
entry = &entries[entryIndex];
// used space is doubled because of the individual files plus the single complete file
entry->curr_size = (FILESYSTEM_SIZE_MB * 1024 * 1024) - (flashfsIdentifyStartOfFreeSpace() * 2);
entry->max_size = entry->curr_size;
// This entry has timestamps corresponding to when the filesystem is mounted
emfat_set_entry_cma(entry);
if (usedSpace * 2 < FILESYSTEM_SIZE_MB * 1024 * 1024) {
entries[entryIndex] = entriesPredefined[PREDEFINED_ENTRY_COUNT + 1];
entry = &entries[entryIndex];
// used space is doubled because of the individual files plus the single complete file
entry->curr_size = (FILESYSTEM_SIZE_MB * 1024 * 1024) - (usedSpace * 2);
entry->max_size = entry->curr_size;
// This entry has timestamps corresponding to when the filesystem is mounted
emfat_set_entry_cma(entry);
}
emfat_init(&emfat, "BETAFLT", entries);
}