107 lines
2.4 KiB
C++
107 lines
2.4 KiB
C++
// Copyright 2015-2016 Espressif Systems (Shanghai) PTE LTD
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
#include "vfs_api.h"
|
|
#include "sd_diskio.h"
|
|
#include "ff.h"
|
|
#include "FS.h"
|
|
#include "SD.h"
|
|
|
|
using namespace fs;
|
|
|
|
SDFS::SDFS(FSImplPtr impl): FS(impl), _pdrv(0xFF) {}
|
|
|
|
bool SDFS::begin(uint8_t ssPin, SPIClass &spi, uint32_t frequency, const char * mountpoint, uint8_t max_files)
|
|
{
|
|
if(_pdrv != 0xFF) {
|
|
return true;
|
|
}
|
|
|
|
spi.begin();
|
|
|
|
_pdrv = sdcard_init(ssPin, &spi, frequency);
|
|
if(_pdrv == 0xFF) {
|
|
return false;
|
|
}
|
|
|
|
if(!sdcard_mount(_pdrv, mountpoint, max_files)){
|
|
sdcard_unmount(_pdrv);
|
|
sdcard_uninit(_pdrv);
|
|
_pdrv = 0xFF;
|
|
return false;
|
|
}
|
|
|
|
_impl->mountpoint(mountpoint);
|
|
return true;
|
|
}
|
|
|
|
void SDFS::end()
|
|
{
|
|
if(_pdrv != 0xFF) {
|
|
_impl->mountpoint(NULL);
|
|
sdcard_unmount(_pdrv);
|
|
|
|
sdcard_uninit(_pdrv);
|
|
_pdrv = 0xFF;
|
|
}
|
|
}
|
|
|
|
sdcard_type_t SDFS::cardType()
|
|
{
|
|
if(_pdrv == 0xFF) {
|
|
return CARD_NONE;
|
|
}
|
|
return sdcard_type(_pdrv);
|
|
}
|
|
|
|
uint64_t SDFS::cardSize()
|
|
{
|
|
if(_pdrv == 0xFF) {
|
|
return 0;
|
|
}
|
|
size_t sectors = sdcard_num_sectors(_pdrv);
|
|
size_t sectorSize = sdcard_sector_size(_pdrv);
|
|
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 = ((uint64_t)(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 = ((uint64_t)(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()));
|