sdfs.cpp

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#ifdef ARDUINO
 
#include "roo_io/fs/arduino/sdfs.h"
 
#include <Arduino.h>
 
#if (defined ESP32 || defined ROO_TESTING)
// Directly use the lower-level POSIX APIs, bypassing Arduino filesystem stuff
// completely.
#include "roo_io/fs/posix/posix_mount.h"
#else
// Fall back to Arduino filesystem APIs.
#include "roo_io/fs/arduino/mount.h"
#endif
 
namespace roo_io {
 
#if (defined ESP32 || defined ROO_TESTING)
 
ArduinoSdFs::ArduinoSdFs(uint8_t cs_pin, decltype(::SD)& sd,
                         decltype(::SPI)& spi, uint32_t freq)
    : BaseEsp32VfsFilesystem(freq, "/sd"),
      cs_pin_((gpio_num_t)cs_pin),
      sd_(sd),
      spi_(&spi) {}
 
MountImpl::MountResult ArduinoSdFs::mountImpl(
    std::function<void()> unmount_fn) {
  if (!sd_.begin(cs_pin_, *spi_, frequency(), mountPoint(), maxOpenFiles(),
                 formatIfMountFailed())) {
    return MountImpl::MountError(kGenericMountError);
  }
  return MountImpl::Mounted(std::unique_ptr<MountImpl>(
      new PosixMountImpl(mountPoint(), readOnly(), unmount_fn)));
}
 
Filesystem::MediaPresence ArduinoSdFs::checkMediaPresence() {
  return sd_.totalBytes() > 0 ? kMediaPresent : kMediaAbsent;
}
 
#else
 
ArduinoSdFs::ArduinoSdFs(uint8_t cs_pin)
    : sd_(::SD),
#if defined(ARDUINO_ARCH_RP2040)
      sdfs_(::SDFS),
#endif
      cs_pin_(cs_pin),
      read_only_(false) {
}
 
MountImpl::MountResult ArduinoSdFs::mountImpl(
    std::function<void()> unmount_fn) {
  if (!sd_.begin(cs_pin_)) {
    return MountImpl::MountError(kGenericMountError);
  }
  return MountImpl::Mounted(std::unique_ptr<MountImpl>(
#if defined(ARDUINO_ARCH_RP2040)
      new ArduinoMountImpl(sdfs_, read_only_, unmount_fn)));
#else
      new ArduinoMountImpl(sd_, read_only_, unmount_fn)));
#endif
}
 
Filesystem::MediaPresence ArduinoSdFs::checkMediaPresence() {
  return kMediaPresenceUnknown;
}
 
#endif  // ESP32
 
void ArduinoSdFs::unmountImpl() { sd_.end(); }
 
ArduinoSdFs CreateArduinoSdFs() { return ArduinoSdFs(); }
 
ArduinoSdFs SD = CreateArduinoSdFs();
 
}  // namespace roo_io
 
#endif  // ARDUINO