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