diff options
Diffstat (limited to 'libnandfs/calcformat.c')
| -rw-r--r-- | libnandfs/calcformat.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/libnandfs/calcformat.c b/libnandfs/calcformat.c new file mode 100644 index 00000000..498427f5 --- /dev/null +++ b/libnandfs/calcformat.c @@ -0,0 +1,24 @@ +#include "lib9.h" +#include "logfs.h" +#include "nandfs.h" +#include "local.h" + +int +nandfscalcformat(Nandfs *nandfs, long base, long limit, long bootsize, long *baseblock, long *limitblock, long *bootblocks) +{ + *baseblock = (base + nandfs->rawblocksize - 1) / nandfs->rawblocksize; + if (limit == 0) + *limitblock = nandfs->limitblock; + else + *limitblock = limit / nandfs->rawblocksize; + *bootblocks = (bootsize + nandfs->rawblocksize - 1) / nandfs->rawblocksize; + if (*bootblocks < 3) + *bootblocks = 3; + /* sanity checks */ + if (*limitblock > nandfs->limitblock + || *baseblock < nandfs->baseblock + || *bootblocks > nandfs->limitblock - nandfs->baseblock) + return 0; + return 1; +} + |