83 lines
2.6 KiB
C++
83 lines
2.6 KiB
C++
/* 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/>.
|
|
*/
|
|
#include "SdFat.h"
|
|
#include <Print.h>
|
|
#include "SdFatUtil.h"
|
|
|
|
//------------------------------------------------------------------------------
|
|
/** Amount of free RAM
|
|
* \return The number of free bytes.
|
|
*/
|
|
#ifdef __arm__
|
|
extern "C" char* sbrk(int incr);
|
|
int SdFatUtil::FreeRam() {
|
|
char top;
|
|
return &top - reinterpret_cast<char*>(sbrk(0));
|
|
}
|
|
#else // __arm__
|
|
extern char *__brkval;
|
|
extern char __bss_end;
|
|
/** Amount of free RAM
|
|
* \return The number of free bytes.
|
|
*/
|
|
int SdFatUtil::FreeRam() {
|
|
char top;
|
|
return __brkval ? &top - __brkval : &top - &__bss_end;
|
|
}
|
|
#endif // __arm
|
|
|
|
//------------------------------------------------------------------------------
|
|
/** %Print a string in flash memory.
|
|
*
|
|
* \param[in] pr Print object for output.
|
|
* \param[in] str Pointer to string stored in flash memory.
|
|
*/
|
|
void SdFatUtil::print_P( Print *p, PGM_P str) {
|
|
Print &MYSERIAL = *p;
|
|
for (uint8_t c; (c = pgm_read_byte(str)); str++) MYSERIAL.write(c);
|
|
}
|
|
//------------------------------------------------------------------------------
|
|
/** %Print a string in flash memory followed by a CR/LF.
|
|
*
|
|
* \param[in] pr Print object for output.
|
|
* \param[in] str Pointer to string stored in flash memory.
|
|
*/
|
|
void SdFatUtil::println_P( Print *p, PGM_P str) {
|
|
Print &MYSERIAL = *p;
|
|
print_P( p, str);
|
|
MYSERIAL.println();
|
|
}
|
|
//------------------------------------------------------------------------------
|
|
/** %Print a string in flash memory to Serial.
|
|
*
|
|
* \param[in] str Pointer to string stored in flash memory.
|
|
*/
|
|
void SdFatUtil::SerialPrint_P( Print *p, PGM_P str) {
|
|
print_P(p, str);
|
|
}
|
|
//------------------------------------------------------------------------------
|
|
/** %Print a string in flash memory to Serial followed by a CR/LF.
|
|
*
|
|
* \param[in] str Pointer to string stored in flash memory.
|
|
*/
|
|
void SdFatUtil::SerialPrintln_P(Print *p, PGM_P str) {
|
|
println_P( p, str);
|
|
}
|