From 0887b98f627500271b5ad8b3c4f6c7b90bc227ee Mon Sep 17 00:00:00 2001
From: Thibaut VIARD <thibaut.viard@atmel.com>
Date: Tue, 21 Jun 2011 00:20:43 +0200
Subject: Moving all AVR specific libraries to hardware/avr

---
 libraries/SD/utility/SdFatUtil.h | 70 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 70 insertions(+)
 create mode 100644 libraries/SD/utility/SdFatUtil.h

(limited to 'libraries/SD/utility/SdFatUtil.h')

diff --git a/libraries/SD/utility/SdFatUtil.h b/libraries/SD/utility/SdFatUtil.h
new file mode 100644
index 0000000..c626bfe
--- /dev/null
+++ b/libraries/SD/utility/SdFatUtil.h
@@ -0,0 +1,70 @@
+/* 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>
+#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. */
+#define NOINLINE __attribute__((noinline))
+//------------------------------------------------------------------------------
+/** Return the number of bytes currently free in RAM. */
+static 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;
+}
+//------------------------------------------------------------------------------
+/**
+ * %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.print(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  // #define SdFatUtil_h
-- 
cgit v1.2.3-18-g5258