sdspi.h

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#pragma once
 
#if (defined ESP32 && defined ARDUINO)
 
#include <functional>
#include <string>
 
#include "SPI.h"
#include "roo_io/base/string_view.h"
#include "roo_io/fs/esp32/base_vfs_filesystem.h"
#include "roo_io/fs/posix/posix_mount.h"
#include "sd_diskio.h"
 
namespace roo_io {
 
// Exposes the roo_io::Filesystem interface over the native ESP32 Arduino SD
// implementation, using the VFS API and Posix interface to the file system.
// This is very similar to "roo_io/fs/arduino/sdfs.h", but uses the lower-level
// sd_diskio interface directly, instead of going through the Arduino SD object.
class ArduinoSdSpiFs : public BaseEsp32VfsFilesystem {
 public:
  void setCsPin(uint8_t cs_pin) { cs_pin_ = (gpio_num_t)cs_pin; }
  void setSPI(decltype(::SPI)& spi) { spi_ = &spi; }
 
  MediaPresence checkMediaPresence() override;
 
 protected:
  friend ArduinoSdSpiFs CreateArduinoSdSpiFs();
 
  ArduinoSdSpiFs(uint8_t cs_pin = SS, decltype(::SPI)& spi = ::SPI,
                 uint32_t freq = 20000000);
 
  MountImpl::MountResult mountImpl(std::function<void()> unmount_fn) override;
 
  void unmountImpl() override;
 
  gpio_num_t cs_pin_;
 
  decltype(::SPI)* spi_;
 
  uint8_t pdrv_;
};
 
extern ArduinoSdSpiFs SD_SPI;
 
}  // namespace roo_io
 
#endif