Public Access
twislaandClaude Opus 5.5
3ee7ae1097
A project library named SD takes the framework's place at link time. Unchanged here (Apache-2.0), so that the next commit shows exactly what roro9stack changes in it, and a later framework update can be compared. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01EhqxQ49eCju4CzKYNjZzwT
135 lines
3.0 KiB
C++
135 lines
3.0 KiB
C++
// 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 "ff.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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SDFS::~SDFS() {
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end();
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}
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bool SDFS::begin(uint8_t ssPin, SPIClass &spi, uint32_t frequency, const char *mountpoint, uint8_t max_files, bool format_if_empty) {
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if (_pdrv != 0xFF) {
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return true;
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}
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if (!spi.begin()) {
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return false;
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}
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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, max_files, format_if_empty)) {
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sdcard_unmount(_pdrv);
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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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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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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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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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size_t SDFS::numSectors() {
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if (_pdrv == 0xFF) {
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return 0;
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}
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return sdcard_num_sectors(_pdrv);
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}
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size_t SDFS::sectorSize() {
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if (_pdrv == 0xFF) {
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return 0;
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}
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return sdcard_sector_size(_pdrv);
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}
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uint64_t SDFS::totalBytes() {
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FATFS *fsinfo;
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DWORD fre_clust;
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char drv[3] = {(char)(48 + _pdrv), ':', 0};
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if (f_getfree(drv, &fre_clust, &fsinfo) != 0) {
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return 0;
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}
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uint64_t size = ((uint64_t)(fsinfo->csize)) * (fsinfo->n_fatent - 2)
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#if _MAX_SS != 512
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* (fsinfo->ssize);
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#else
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* 512;
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#endif
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return size;
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}
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uint64_t SDFS::usedBytes() {
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FATFS *fsinfo;
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DWORD fre_clust;
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char drv[3] = {(char)(48 + _pdrv), ':', 0};
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if (f_getfree(drv, &fre_clust, &fsinfo) != 0) {
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return 0;
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}
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uint64_t size = ((uint64_t)(fsinfo->csize)) * ((fsinfo->n_fatent - 2) - (fsinfo->free_clst))
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#if _MAX_SS != 512
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* (fsinfo->ssize);
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#else
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* 512;
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#endif
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return size;
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}
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bool SDFS::readRAW(uint8_t *buffer, uint32_t sector) {
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return sd_read_raw(_pdrv, buffer, sector);
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}
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bool SDFS::writeRAW(uint8_t *buffer, uint32_t sector) {
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return sd_write_raw(_pdrv, buffer, sector);
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}
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SDFS SD = SDFS(FSImplPtr(new VFSImpl()));
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