mirror of
https://github.com/MarlinFirmware/Marlin.git
synced 2024-11-24 04:29:34 +00:00
484 lines
18 KiB
C++
484 lines
18 KiB
C++
/* Arduino SdFat Library
|
|
* Copyright (C) 2009 by William Greiman
|
|
*
|
|
* This file is part of the Arduino SdFat Library
|
|
*
|
|
* This Library 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 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 General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with the Arduino SdFat Library. If not, see
|
|
* <http://www.gnu.org/licenses/>.
|
|
*/
|
|
#include "Marlin.h"
|
|
#if ENABLED(SDSUPPORT)
|
|
|
|
#ifndef SdBaseFile_h
|
|
#define SdBaseFile_h
|
|
/**
|
|
* \file
|
|
* \brief SdBaseFile class
|
|
*/
|
|
#include "Marlin.h"
|
|
#include "SdFatConfig.h"
|
|
#include "SdVolume.h"
|
|
//------------------------------------------------------------------------------
|
|
/**
|
|
* \struct fpos_t
|
|
* \brief internal type for istream
|
|
* do not use in user apps
|
|
*/
|
|
struct fpos_t {
|
|
/** stream position */
|
|
uint32_t position;
|
|
/** cluster for position */
|
|
uint32_t cluster;
|
|
fpos_t() : position(0), cluster(0) {}
|
|
};
|
|
|
|
// use the gnu style oflag in open()
|
|
/** open() oflag for reading */
|
|
uint8_t const O_READ = 0X01;
|
|
/** open() oflag - same as O_IN */
|
|
uint8_t const O_RDONLY = O_READ;
|
|
/** open() oflag for write */
|
|
uint8_t const O_WRITE = 0X02;
|
|
/** open() oflag - same as O_WRITE */
|
|
uint8_t const O_WRONLY = O_WRITE;
|
|
/** open() oflag for reading and writing */
|
|
uint8_t const O_RDWR = (O_READ | O_WRITE);
|
|
/** open() oflag mask for access modes */
|
|
uint8_t const O_ACCMODE = (O_READ | O_WRITE);
|
|
/** The file offset shall be set to the end of the file prior to each write. */
|
|
uint8_t const O_APPEND = 0X04;
|
|
/** synchronous writes - call sync() after each write */
|
|
uint8_t const O_SYNC = 0X08;
|
|
/** truncate the file to zero length */
|
|
uint8_t const O_TRUNC = 0X10;
|
|
/** set the initial position at the end of the file */
|
|
uint8_t const O_AT_END = 0X20;
|
|
/** create the file if nonexistent */
|
|
uint8_t const O_CREAT = 0X40;
|
|
/** If O_CREAT and O_EXCL are set, open() shall fail if the file exists */
|
|
uint8_t const O_EXCL = 0X80;
|
|
|
|
// SdBaseFile class static and const definitions
|
|
// flags for ls()
|
|
/** ls() flag to print modify date */
|
|
uint8_t const LS_DATE = 1;
|
|
/** ls() flag to print file size */
|
|
uint8_t const LS_SIZE = 2;
|
|
/** ls() flag for recursive list of subdirectories */
|
|
uint8_t const LS_R = 4;
|
|
|
|
|
|
// flags for timestamp
|
|
/** set the file's last access date */
|
|
uint8_t const T_ACCESS = 1;
|
|
/** set the file's creation date and time */
|
|
uint8_t const T_CREATE = 2;
|
|
/** Set the file's write date and time */
|
|
uint8_t const T_WRITE = 4;
|
|
// values for type_
|
|
/** This file has not been opened. */
|
|
uint8_t const FAT_FILE_TYPE_CLOSED = 0;
|
|
/** A normal file */
|
|
uint8_t const FAT_FILE_TYPE_NORMAL = 1;
|
|
/** A FAT12 or FAT16 root directory */
|
|
uint8_t const FAT_FILE_TYPE_ROOT_FIXED = 2;
|
|
/** A FAT32 root directory */
|
|
uint8_t const FAT_FILE_TYPE_ROOT32 = 3;
|
|
/** A subdirectory file*/
|
|
uint8_t const FAT_FILE_TYPE_SUBDIR = 4;
|
|
/** Test value for directory type */
|
|
uint8_t const FAT_FILE_TYPE_MIN_DIR = FAT_FILE_TYPE_ROOT_FIXED;
|
|
|
|
/** date field for FAT directory entry
|
|
* \param[in] year [1980,2107]
|
|
* \param[in] month [1,12]
|
|
* \param[in] day [1,31]
|
|
*
|
|
* \return Packed date for dir_t entry.
|
|
*/
|
|
static inline uint16_t FAT_DATE(uint16_t year, uint8_t month, uint8_t day) {
|
|
return (year - 1980) << 9 | month << 5 | day;
|
|
}
|
|
/** year part of FAT directory date field
|
|
* \param[in] fatDate Date in packed dir format.
|
|
*
|
|
* \return Extracted year [1980,2107]
|
|
*/
|
|
static inline uint16_t FAT_YEAR(uint16_t fatDate) {
|
|
return 1980 + (fatDate >> 9);
|
|
}
|
|
/** month part of FAT directory date field
|
|
* \param[in] fatDate Date in packed dir format.
|
|
*
|
|
* \return Extracted month [1,12]
|
|
*/
|
|
static inline uint8_t FAT_MONTH(uint16_t fatDate) {
|
|
return (fatDate >> 5) & 0XF;
|
|
}
|
|
/** day part of FAT directory date field
|
|
* \param[in] fatDate Date in packed dir format.
|
|
*
|
|
* \return Extracted day [1,31]
|
|
*/
|
|
static inline uint8_t FAT_DAY(uint16_t fatDate) {
|
|
return fatDate & 0X1F;
|
|
}
|
|
/** time field for FAT directory entry
|
|
* \param[in] hour [0,23]
|
|
* \param[in] minute [0,59]
|
|
* \param[in] second [0,59]
|
|
*
|
|
* \return Packed time for dir_t entry.
|
|
*/
|
|
static inline uint16_t FAT_TIME(uint8_t hour, uint8_t minute, uint8_t second) {
|
|
return hour << 11 | minute << 5 | second >> 1;
|
|
}
|
|
/** hour part of FAT directory time field
|
|
* \param[in] fatTime Time in packed dir format.
|
|
*
|
|
* \return Extracted hour [0,23]
|
|
*/
|
|
static inline uint8_t FAT_HOUR(uint16_t fatTime) {
|
|
return fatTime >> 11;
|
|
}
|
|
/** minute part of FAT directory time field
|
|
* \param[in] fatTime Time in packed dir format.
|
|
*
|
|
* \return Extracted minute [0,59]
|
|
*/
|
|
static inline uint8_t FAT_MINUTE(uint16_t fatTime) {
|
|
return(fatTime >> 5) & 0X3F;
|
|
}
|
|
/** second part of FAT directory time field
|
|
* Note second/2 is stored in packed time.
|
|
*
|
|
* \param[in] fatTime Time in packed dir format.
|
|
*
|
|
* \return Extracted second [0,58]
|
|
*/
|
|
static inline uint8_t FAT_SECOND(uint16_t fatTime) {
|
|
return 2*(fatTime & 0X1F);
|
|
}
|
|
/** Default date for file timestamps is 1 Jan 2000 */
|
|
uint16_t const FAT_DEFAULT_DATE = ((2000 - 1980) << 9) | (1 << 5) | 1;
|
|
/** Default time for file timestamp is 1 am */
|
|
uint16_t const FAT_DEFAULT_TIME = (1 << 11);
|
|
//------------------------------------------------------------------------------
|
|
/**
|
|
* \class SdBaseFile
|
|
* \brief Base class for SdFile with Print and C++ streams.
|
|
*/
|
|
class SdBaseFile {
|
|
public:
|
|
/** Create an instance. */
|
|
SdBaseFile() : writeError(false), type_(FAT_FILE_TYPE_CLOSED) {}
|
|
SdBaseFile(const char* path, uint8_t oflag);
|
|
~SdBaseFile() {if(isOpen()) close();}
|
|
/**
|
|
* writeError is set to true if an error occurs during a write().
|
|
* Set writeError to false before calling print() and/or write() and check
|
|
* for true after calls to print() and/or write().
|
|
*/
|
|
bool writeError;
|
|
//----------------------------------------------------------------------------
|
|
// helpers for stream classes
|
|
/** get position for streams
|
|
* \param[out] pos struct to receive position
|
|
*/
|
|
void getpos(fpos_t* pos);
|
|
/** set position for streams
|
|
* \param[out] pos struct with value for new position
|
|
*/
|
|
void setpos(fpos_t* pos);
|
|
//----------------------------------------------------------------------------
|
|
bool close();
|
|
bool contiguousRange(uint32_t* bgnBlock, uint32_t* endBlock);
|
|
bool createContiguous(SdBaseFile* dirFile,
|
|
const char* path, uint32_t size);
|
|
/** \return The current cluster number for a file or directory. */
|
|
uint32_t curCluster() const {return curCluster_;}
|
|
/** \return The current position for a file or directory. */
|
|
uint32_t curPosition() const {return curPosition_;}
|
|
/** \return Current working directory */
|
|
static SdBaseFile* cwd() {return cwd_;}
|
|
/** Set the date/time callback function
|
|
*
|
|
* \param[in] dateTime The user's call back function. The callback
|
|
* function is of the form:
|
|
*
|
|
* \code
|
|
* void dateTime(uint16_t* date, uint16_t* time) {
|
|
* uint16_t year;
|
|
* uint8_t month, day, hour, minute, second;
|
|
*
|
|
* // User gets date and time from GPS or real-time clock here
|
|
*
|
|
* // return date using FAT_DATE macro to format fields
|
|
* *date = FAT_DATE(year, month, day);
|
|
*
|
|
* // return time using FAT_TIME macro to format fields
|
|
* *time = FAT_TIME(hour, minute, second);
|
|
* }
|
|
* \endcode
|
|
*
|
|
* Sets the function that is called when a file is created or when
|
|
* a file's directory entry is modified by sync(). All timestamps,
|
|
* access, creation, and modify, are set when a file is created.
|
|
* sync() maintains the last access date and last modify date/time.
|
|
*
|
|
* See the timestamp() function.
|
|
*/
|
|
static void dateTimeCallback(
|
|
void (*dateTime)(uint16_t* date, uint16_t* time)) {
|
|
dateTime_ = dateTime;
|
|
}
|
|
/** Cancel the date/time callback function. */
|
|
static void dateTimeCallbackCancel() {dateTime_ = 0;}
|
|
bool dirEntry(dir_t* dir);
|
|
static void dirName(const dir_t& dir, char* name);
|
|
bool exists(const char* name);
|
|
int16_t fgets(char* str, int16_t num, char* delim = 0);
|
|
/** \return The total number of bytes in a file or directory. */
|
|
uint32_t fileSize() const {return fileSize_;}
|
|
/** \return The first cluster number for a file or directory. */
|
|
uint32_t firstCluster() const {return firstCluster_;}
|
|
bool getFilename(char* name);
|
|
/** \return True if this is a directory else false. */
|
|
bool isDir() const {return type_ >= FAT_FILE_TYPE_MIN_DIR;}
|
|
/** \return True if this is a normal file else false. */
|
|
bool isFile() const {return type_ == FAT_FILE_TYPE_NORMAL;}
|
|
/** \return True if this is an open file/directory else false. */
|
|
bool isOpen() const {return type_ != FAT_FILE_TYPE_CLOSED;}
|
|
/** \return True if this is a subdirectory else false. */
|
|
bool isSubDir() const {return type_ == FAT_FILE_TYPE_SUBDIR;}
|
|
/** \return True if this is the root directory. */
|
|
bool isRoot() const {
|
|
return type_ == FAT_FILE_TYPE_ROOT_FIXED || type_ == FAT_FILE_TYPE_ROOT32;
|
|
}
|
|
void ls( uint8_t flags = 0, uint8_t indent = 0);
|
|
bool mkdir(SdBaseFile* dir, const char* path, bool pFlag = true);
|
|
// alias for backward compactability
|
|
bool makeDir(SdBaseFile* dir, const char* path) {
|
|
return mkdir(dir, path, false);
|
|
}
|
|
bool open(SdBaseFile* dirFile, uint16_t index, uint8_t oflag);
|
|
bool open(SdBaseFile* dirFile, const char* path, uint8_t oflag);
|
|
bool open(const char* path, uint8_t oflag = O_READ);
|
|
bool openNext(SdBaseFile* dirFile, uint8_t oflag);
|
|
bool openRoot(SdVolume* vol);
|
|
int peek();
|
|
static void printFatDate(uint16_t fatDate);
|
|
static void printFatTime( uint16_t fatTime);
|
|
bool printName();
|
|
int16_t read();
|
|
int16_t read(void* buf, uint16_t nbyte);
|
|
int8_t readDir(dir_t* dir, char* longFilename);
|
|
static bool remove(SdBaseFile* dirFile, const char* path);
|
|
bool remove();
|
|
/** Set the file's current position to zero. */
|
|
void rewind() {seekSet(0);}
|
|
bool rename(SdBaseFile* dirFile, const char* newPath);
|
|
bool rmdir();
|
|
// for backward compatibility
|
|
bool rmDir() {return rmdir();}
|
|
bool rmRfStar();
|
|
/** Set the files position to current position + \a pos. See seekSet().
|
|
* \param[in] offset The new position in bytes from the current position.
|
|
* \return true for success or false for failure.
|
|
*/
|
|
bool seekCur(int32_t offset) {
|
|
return seekSet(curPosition_ + offset);
|
|
}
|
|
/** Set the files position to end-of-file + \a offset. See seekSet().
|
|
* \param[in] offset The new position in bytes from end-of-file.
|
|
* \return true for success or false for failure.
|
|
*/
|
|
bool seekEnd(int32_t offset = 0) {return seekSet(fileSize_ + offset);}
|
|
bool seekSet(uint32_t pos);
|
|
bool sync();
|
|
bool timestamp(SdBaseFile* file);
|
|
bool timestamp(uint8_t flag, uint16_t year, uint8_t month, uint8_t day,
|
|
uint8_t hour, uint8_t minute, uint8_t second);
|
|
/** Type of file. You should use isFile() or isDir() instead of type()
|
|
* if possible.
|
|
*
|
|
* \return The file or directory type.
|
|
*/
|
|
uint8_t type() const {return type_;}
|
|
bool truncate(uint32_t size);
|
|
/** \return SdVolume that contains this file. */
|
|
SdVolume* volume() const {return vol_;}
|
|
int16_t write(const void* buf, uint16_t nbyte);
|
|
//------------------------------------------------------------------------------
|
|
private:
|
|
// allow SdFat to set cwd_
|
|
friend class SdFat;
|
|
// global pointer to cwd dir
|
|
static SdBaseFile* cwd_;
|
|
// data time callback function
|
|
static void (*dateTime_)(uint16_t* date, uint16_t* time);
|
|
// bits defined in flags_
|
|
// should be 0X0F
|
|
static uint8_t const F_OFLAG = (O_ACCMODE | O_APPEND | O_SYNC);
|
|
// sync of directory entry required
|
|
static uint8_t const F_FILE_DIR_DIRTY = 0X80;
|
|
|
|
// private data
|
|
uint8_t flags_; // See above for definition of flags_ bits
|
|
uint8_t fstate_; // error and eof indicator
|
|
uint8_t type_; // type of file see above for values
|
|
uint32_t curCluster_; // cluster for current file position
|
|
uint32_t curPosition_; // current file position in bytes from beginning
|
|
uint32_t dirBlock_; // block for this files directory entry
|
|
uint8_t dirIndex_; // index of directory entry in dirBlock
|
|
uint32_t fileSize_; // file size in bytes
|
|
uint32_t firstCluster_; // first cluster of file
|
|
SdVolume* vol_; // volume where file is located
|
|
|
|
/** experimental don't use */
|
|
bool openParent(SdBaseFile* dir);
|
|
// private functions
|
|
bool addCluster();
|
|
bool addDirCluster();
|
|
dir_t* cacheDirEntry(uint8_t action);
|
|
int8_t lsPrintNext( uint8_t flags, uint8_t indent);
|
|
static bool make83Name(const char* str, uint8_t* name, const char** ptr);
|
|
bool mkdir(SdBaseFile* parent, const uint8_t dname[11]);
|
|
bool open(SdBaseFile* dirFile, const uint8_t dname[11], uint8_t oflag);
|
|
bool openCachedEntry(uint8_t cacheIndex, uint8_t oflags);
|
|
dir_t* readDirCache();
|
|
//------------------------------------------------------------------------------
|
|
// to be deleted
|
|
static void printDirName( const dir_t& dir,
|
|
uint8_t width, bool printSlash);
|
|
//------------------------------------------------------------------------------
|
|
// Deprecated functions - suppress cpplint warnings with NOLINT comment
|
|
#if ALLOW_DEPRECATED_FUNCTIONS && !defined(DOXYGEN)
|
|
public:
|
|
/** \deprecated Use:
|
|
* bool contiguousRange(uint32_t* bgnBlock, uint32_t* endBlock);
|
|
* \param[out] bgnBlock the first block address for the file.
|
|
* \param[out] endBlock the last block address for the file.
|
|
* \return true for success or false for failure.
|
|
*/
|
|
bool contiguousRange(uint32_t& bgnBlock, uint32_t& endBlock) { // NOLINT
|
|
return contiguousRange(&bgnBlock, &endBlock);
|
|
}
|
|
/** \deprecated Use:
|
|
* bool createContiguous(SdBaseFile* dirFile,
|
|
* const char* path, uint32_t size)
|
|
* \param[in] dirFile The directory where the file will be created.
|
|
* \param[in] path A path with a valid DOS 8.3 file name.
|
|
* \param[in] size The desired file size.
|
|
* \return true for success or false for failure.
|
|
*/
|
|
bool createContiguous(SdBaseFile& dirFile, // NOLINT
|
|
const char* path, uint32_t size) {
|
|
return createContiguous(&dirFile, path, size);
|
|
}
|
|
/** \deprecated Use:
|
|
* static void dateTimeCallback(
|
|
* void (*dateTime)(uint16_t* date, uint16_t* time));
|
|
* \param[in] dateTime The user's call back function.
|
|
*/
|
|
static void dateTimeCallback(
|
|
void (*dateTime)(uint16_t& date, uint16_t& time)) { // NOLINT
|
|
oldDateTime_ = dateTime;
|
|
dateTime_ = dateTime ? oldToNew : 0;
|
|
}
|
|
/** \deprecated Use: bool dirEntry(dir_t* dir);
|
|
* \param[out] dir Location for return of the file's directory entry.
|
|
* \return true for success or false for failure.
|
|
*/
|
|
bool dirEntry(dir_t& dir) {return dirEntry(&dir);} // NOLINT
|
|
/** \deprecated Use:
|
|
* bool mkdir(SdBaseFile* dir, const char* path);
|
|
* \param[in] dir An open SdFat instance for the directory that will contain
|
|
* the new directory.
|
|
* \param[in] path A path with a valid 8.3 DOS name for the new directory.
|
|
* \return true for success or false for failure.
|
|
*/
|
|
bool mkdir(SdBaseFile& dir, const char* path) { // NOLINT
|
|
return mkdir(&dir, path);
|
|
}
|
|
/** \deprecated Use:
|
|
* bool open(SdBaseFile* dirFile, const char* path, uint8_t oflag);
|
|
* \param[in] dirFile An open SdFat instance for the directory containing the
|
|
* file to be opened.
|
|
* \param[in] path A path with a valid 8.3 DOS name for the file.
|
|
* \param[in] oflag Values for \a oflag are constructed by a bitwise-inclusive
|
|
* OR of flags O_READ, O_WRITE, O_TRUNC, and O_SYNC.
|
|
* \return true for success or false for failure.
|
|
*/
|
|
bool open(SdBaseFile& dirFile, // NOLINT
|
|
const char* path, uint8_t oflag) {
|
|
return open(&dirFile, path, oflag);
|
|
}
|
|
/** \deprecated Do not use in new apps
|
|
* \param[in] dirFile An open SdFat instance for the directory containing the
|
|
* file to be opened.
|
|
* \param[in] path A path with a valid 8.3 DOS name for a file to be opened.
|
|
* \return true for success or false for failure.
|
|
*/
|
|
bool open(SdBaseFile& dirFile, const char* path) { // NOLINT
|
|
return open(dirFile, path, O_RDWR);
|
|
}
|
|
/** \deprecated Use:
|
|
* bool open(SdBaseFile* dirFile, uint16_t index, uint8_t oflag);
|
|
* \param[in] dirFile An open SdFat instance for the directory.
|
|
* \param[in] index The \a index of the directory entry for the file to be
|
|
* opened. The value for \a index is (directory file position)/32.
|
|
* \param[in] oflag Values for \a oflag are constructed by a bitwise-inclusive
|
|
* OR of flags O_READ, O_WRITE, O_TRUNC, and O_SYNC.
|
|
* \return true for success or false for failure.
|
|
*/
|
|
bool open(SdBaseFile& dirFile, uint16_t index, uint8_t oflag) { // NOLINT
|
|
return open(&dirFile, index, oflag);
|
|
}
|
|
/** \deprecated Use: bool openRoot(SdVolume* vol);
|
|
* \param[in] vol The FAT volume containing the root directory to be opened.
|
|
* \return true for success or false for failure.
|
|
*/
|
|
bool openRoot(SdVolume& vol) {return openRoot(&vol);} // NOLINT
|
|
/** \deprecated Use: int8_t readDir(dir_t* dir);
|
|
* \param[out] dir The dir_t struct that will receive the data.
|
|
* \return bytes read for success zero for eof or -1 for failure.
|
|
*/
|
|
int8_t readDir(dir_t& dir, char* longFilename) {return readDir(&dir, longFilename);} // NOLINT
|
|
/** \deprecated Use:
|
|
* static uint8_t remove(SdBaseFile* dirFile, const char* path);
|
|
* \param[in] dirFile The directory that contains the file.
|
|
* \param[in] path The name of the file to be removed.
|
|
* \return true for success or false for failure.
|
|
*/
|
|
static bool remove(SdBaseFile& dirFile, const char* path) { // NOLINT
|
|
return remove(&dirFile, path);
|
|
}
|
|
//------------------------------------------------------------------------------
|
|
// rest are private
|
|
private:
|
|
static void (*oldDateTime_)(uint16_t& date, uint16_t& time); // NOLINT
|
|
static void oldToNew(uint16_t* date, uint16_t* time) {
|
|
uint16_t d;
|
|
uint16_t t;
|
|
oldDateTime_(d, t);
|
|
*date = d;
|
|
*time = t;
|
|
}
|
|
#endif // ALLOW_DEPRECATED_FUNCTIONS
|
|
};
|
|
|
|
#endif // SdBaseFile_h
|
|
#endif
|