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/*
Copyright (c) 2013 Arduino LLC. All right reserved.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef __SD_H__
#define __SD_H__
#include <Process.h>
//#define FILE_READ O_READ
//#define FILE_WRITE (O_READ | O_WRITE | O_CREAT)
#define FILE_READ 0
#define FILE_WRITE 1
class File : public Process {
public:
File();
File(const char *_filename, uint8_t _mode);
~File();
virtual size_t write(uint8_t);
virtual size_t write(const uint8_t *buf, size_t size);
virtual int read();
virtual int peek();
virtual int available();
virtual void flush();
int read(void *buf, uint16_t nbyte);
boolean seek(uint32_t pos);
uint32_t position();
uint32_t size();
void close();
operator bool();
char * name();
boolean isDirectory(void);
//File openNextFile(uint8_t mode = O_RDONLY);
void rewindDirectory(void);
using Print::write;
private:
char *filename;
uint8_t mode;
};
class SDClass {
public:
SDClass() : bridge(Bridge) { }
SDClass(BridgeClass &_b) : bridge(_b) { }
// This needs to be called to set up the connection to the SD card
// before other methods are used.
boolean begin();
// Open the specified file/directory with the supplied mode (e.g. read or
// write, etc). Returns a File object for interacting with the file.
// Note that currently only one file can be open at a time.
File open(const char *filename, uint8_t mode = FILE_READ);
// Methods to determine if the requested file path exists.
boolean exists(const char *filepath);
// Create the requested directory heirarchy--if intermediate directories
// do not exist they will be created.
boolean mkdir(const char *filepath);
// Delete the file.
boolean remove(const char *filepath);
boolean rmdir(const char *filepath);
private:
friend class File;
BridgeClass &bridge;
};
extern SDClass SD;
#endif
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