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Add totalBytes / usedBytes to SD/SDMMC (#673)

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to be same as SPIFFS
This commit is contained in:
Luc
2017-09-28 10:01:02 +08:00
committed by Me No Dev
parent a66b544d18
commit 3ba46c7fbc
6 changed files with 65 additions and 0 deletions
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29
libraries/SD/src/SD.cpp
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@ -14,6 +14,7 @@
#include "vfs_api.h"
#include "sd_diskio.h"
#include "ff.h"
#include "FS.h"
#include "SD.h"
@ -73,4 +74,32 @@ uint64_t SDFS::cardSize()
return (uint64_t)sectors * sectorSize;
}
uint64_t SDFS::totalBytes()
{
FATFS* fsinfo;
DWORD fre_clust;
if(f_getfree("0:",&fre_clust,&fsinfo)!= 0) return 0;
uint64_t size = (fsinfo->csize)*(fsinfo->n_fatent - 2)
#if _MAX_SS != 512
*(fsinfo->ssize);
#else
*512;
#endif
return size;
}
uint64_t SDFS::usedBytes()
{
FATFS* fsinfo;
DWORD fre_clust;
if(f_getfree("0:",&fre_clust,&fsinfo)!= 0) return 0;
uint64_t size = (fsinfo->csize)*((fsinfo->n_fatent - 2) - (fsinfo->free_clst))
#if _MAX_SS != 512
*(fsinfo->ssize);
#else
*512;
#endif
return size;
}
SDFS SD = SDFS(FSImplPtr(new VFSImpl()));