ardupilot/libraries/AP_Filesystem/AP_Filesystem_ESP32.cpp

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/*
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/*
ArduPilot filesystem interface for esp32 systems
*/
#include "AP_Filesystem.h"
#include <AP_HAL/AP_HAL.h>
#if HAVE_FILESYSTEM_SUPPORT
#if CONFIG_HAL_BOARD == HAL_BOARD_ESP32
#define FSDEBUG 0
#include <utime.h>
extern const AP_HAL::HAL& hal;
int AP_Filesystem_ESP32::open(const char *fname, int flags)
{
#if FSDEBUG
printf("DO open %s \n", fname);
#endif
// we automatically add O_CLOEXEC as we always want it for ArduPilot FS usage
return ::open(fname, flags | O_TRUNC | O_CLOEXEC, 0666);
}
int AP_Filesystem_ESP32::close(int fd)
{
#if FSDEBUG
printf("DO close \n");
#endif
return ::close(fd);
}
ssize_t AP_Filesystem_ESP32::read(int fd, void *buf, size_t count)
{
#if FSDEBUG
printf("DO read \n");
#endif
return ::read(fd, buf, count);
}
ssize_t AP_Filesystem_ESP32::write(int fd, const void *buf, size_t count)
{
#if FSDEBUG
printf("DO write \n");
#endif
return ::write(fd, buf, count);
}
int AP_Filesystem_ESP32::fsync(int fd)
{
#if FSDEBUG
printf("DO fsync \n");
#endif
return ::fsync(fd);
}
int32_t AP_Filesystem_ESP32::lseek(int fd, int32_t offset, int seek_from)
{
#if FSDEBUG
printf("DO lseek \n");
#endif
return ::lseek(fd, offset, seek_from);
}
int AP_Filesystem_ESP32::stat(const char *pathname, struct stat *stbuf)
{
#if FSDEBUG
printf("DO stat %s \n", pathname);
#endif
return ::stat(pathname, stbuf);
}
int AP_Filesystem_ESP32::unlink(const char *pathname)
{
#if FSDEBUG
printf("DO unlink %s \n", pathname);
#endif
return ::unlink(pathname);
}
int AP_Filesystem_ESP32::mkdir(const char *pathname)
{
#if FSDEBUG
printf("DO mkdir %s \n", pathname);
#endif
return ::mkdir(pathname, 0777);
}
void* AP_Filesystem_ESP32::opendir(const char *pathname)
{
#if FSDEBUG
printf("DO opendir %s \n", pathname);
#endif
return (void*)::opendir(pathname);
// return NULL;
}
struct dirent *AP_Filesystem_ESP32::readdir(void *dirp)
{
#if FSDEBUG
printf("DO readdir \n");
#endif
return ::readdir((DIR*)dirp);
// return NULL;
}
int AP_Filesystem_ESP32::closedir(void *dirp)
{
#if FSDEBUG
printf("DO closedir \n");
#endif
return ::closedir((DIR*)dirp);
// return 0;
}
// return free disk space in bytes
int64_t AP_Filesystem_ESP32::disk_free(const char *path)
{
#if FSDEBUG
printf("DO free disk %s \n", path);
#endif
FATFS *fs;
DWORD fre_clust, fre_sect;
/* Get volume information and free clusters of sdcard */
auto res = f_getfree("/SDCARD/", &fre_clust, &fs);
if (res) {
return -1;
}
/* Get total sectors and free sectors */
fre_sect = fre_clust * fs->csize;
int64_t tmp_free_bytes = fre_sect * FF_SS_SDCARD;
return tmp_free_bytes;
}
// return total disk space in bytes
int64_t AP_Filesystem_ESP32::disk_space(const char *path)
{
#if FSDEBUG
printf("DO usage disk %s \n", path);
#endif
FATFS *fs;
DWORD fre_clust, tot_sect;
/* Get volume information and free clusters of sdcard */
auto res = f_getfree("/SDCARD/", &fre_clust, &fs);
if (res) {
return -1;
}
/* Get total sectors and free sectors */
tot_sect = (fs->n_fatent - 2) * fs->csize;
int64_t tmp_total_bytes = tot_sect * FF_SS_SDCARD;
return tmp_total_bytes;
}
/*
set mtime on a file
*/
bool AP_Filesystem_ESP32::set_mtime(const char *filename, const uint32_t mtime_sec)
{
#if FSDEBUG
printf("DO time %s \n", filename);
#endif
struct utimbuf times {};
times.actime = mtime_sec;
times.modtime = mtime_sec;
return utime(filename, &times) == 0;
}
#endif // CONFIG_HAL_BOARD
#endif