--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/SdFatUtil.cpp Sat Nov 07 13:23:07 2015 +0100
@@ -0,0 +1,79 @@
+/* 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 "Marlin.h"
+
+#ifdef SDSUPPORT
+#include "SdFatUtil.h"
+
+//------------------------------------------------------------------------------
+/** Amount of free RAM
+ * \return The number of free bytes.
+ */
+int SdFatUtil::FreeRam() {
+ 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;
+}
+//------------------------------------------------------------------------------
+/** %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( PGM_P str) {
+ 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( PGM_P str) {
+ print_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(PGM_P str) {
+ print_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(PGM_P str) {
+ println_P( str);
+}
+#endif