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Dynamically allocate the SD sector cache on use, save ~512 bytes when SD not used #4204

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836 changes: 418 additions & 418 deletions libraries/SD/src/utility/FatStructs.h

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1,524 changes: 762 additions & 762 deletions libraries/SD/src/utility/Sd2Card.cpp

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518 changes: 259 additions & 259 deletions libraries/SD/src/utility/Sd2Card.h

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770 changes: 385 additions & 385 deletions libraries/SD/src/utility/Sd2PinMap.h

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1,116 changes: 565 additions & 551 deletions libraries/SD/src/utility/SdFat.h

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150 changes: 75 additions & 75 deletions libraries/SD/src/utility/SdFatUtil.h
Original file line number Diff line number Diff line change
@@ -1,75 +1,75 @@
/* Arduino SdFat Library
* Copyright (C) 2008 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/>.
*/
#ifndef SdFatUtil_h
#define SdFatUtil_h
/**
* \file
* Useful utility functions.
*/
#include <Arduino.h>
#ifdef __AVR__
#include <avr/pgmspace.h>
/** Store and print a string in flash memory.*/
#define PgmPrint(x) SerialPrint_P(PSTR(x))
/** Store and print a string in flash memory followed by a CR/LF.*/
#define PgmPrintln(x) SerialPrintln_P(PSTR(x))
/** Defined so doxygen works for function definitions. */
#endif
#define NOINLINE __attribute__((noinline,unused))
#define UNUSEDOK __attribute__((unused))
//------------------------------------------------------------------------------
/** Return the number of bytes currently free in RAM. */
static UNUSEDOK int FreeRam(void) {
extern int __bss_end;
extern int* __brkval;
int free_memory;
if (reinterpret_cast<int>(__brkval) == 0) {
// if no heap use from end of bss section
free_memory = reinterpret_cast<int>(&free_memory)
- reinterpret_cast<int>(&__bss_end);
} else {
// use from top of stack to heap
free_memory = reinterpret_cast<int>(&free_memory)
- reinterpret_cast<int>(__brkval);
}
return free_memory;
}
#ifdef __AVR__
//------------------------------------------------------------------------------
/**
* %Print a string in flash memory to the serial port.
*
* \param[in] str Pointer to string stored in flash memory.
*/
static NOINLINE void SerialPrint_P(PGM_P str) {
for (uint8_t c; (c = pgm_read_byte(str)); str++) Serial.write(c);
}
//------------------------------------------------------------------------------
/**
* %Print a string in flash memory followed by a CR/LF.
*
* \param[in] str Pointer to string stored in flash memory.
*/
static NOINLINE void SerialPrintln_P(PGM_P str) {
SerialPrint_P(str);
Serial.println();
}
#endif // __AVR__
#endif // #define SdFatUtil_h
/* Arduino SdFat Library
* Copyright (C) 2008 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/>.
*/
#ifndef SdFatUtil_h
#define SdFatUtil_h
/**
* \file
* Useful utility functions.
*/
#include <Arduino.h>
#ifdef __AVR__
#include <avr/pgmspace.h>
/** Store and print a string in flash memory.*/
#define PgmPrint(x) SerialPrint_P(PSTR(x))
/** Store and print a string in flash memory followed by a CR/LF.*/
#define PgmPrintln(x) SerialPrintln_P(PSTR(x))
/** Defined so doxygen works for function definitions. */
#endif
#define NOINLINE __attribute__((noinline,unused))
#define UNUSEDOK __attribute__((unused))
//------------------------------------------------------------------------------
/** Return the number of bytes currently free in RAM. */
static UNUSEDOK int FreeRam(void) {
extern int __bss_end;
extern int* __brkval;
int free_memory;
if (reinterpret_cast<int>(__brkval) == 0) {
// if no heap use from end of bss section
free_memory = reinterpret_cast<int>(&free_memory)
- reinterpret_cast<int>(&__bss_end);
} else {
// use from top of stack to heap
free_memory = reinterpret_cast<int>(&free_memory)
- reinterpret_cast<int>(__brkval);
}
return free_memory;
}
#ifdef __AVR__
//------------------------------------------------------------------------------
/**
* %Print a string in flash memory to the serial port.
*
* \param[in] str Pointer to string stored in flash memory.
*/
static NOINLINE void SerialPrint_P(PGM_P str) {
for (uint8_t c; (c = pgm_read_byte(str)); str++) Serial.write(c);
}
//------------------------------------------------------------------------------
/**
* %Print a string in flash memory followed by a CR/LF.
*
* \param[in] str Pointer to string stored in flash memory.
*/
static NOINLINE void SerialPrintln_P(PGM_P str) {
SerialPrint_P(str);
Serial.println();
}
#endif // __AVR__
#endif // #define SdFatUtil_h
404 changes: 202 additions & 202 deletions libraries/SD/src/utility/SdFatmainpage.h

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2,530 changes: 1,265 additions & 1,265 deletions libraries/SD/src/utility/SdFile.cpp

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464 changes: 232 additions & 232 deletions libraries/SD/src/utility/SdInfo.h

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591 changes: 296 additions & 295 deletions libraries/SD/src/utility/SdVolume.cpp

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