Add AVR32 port and demo files.

Source/portable/IAR/AVR32_UC3/read.c

@@ -0,0 +1,95 @@
+/* This source file is part of the ATMEL FREERTOS-0.9.0 Release */
+
+/*This file is prepared for Doxygen automatic documentation generation.*/
+/*! \file *********************************************************************
+ *
+ * \brief System-specific implementation of the \ref __read function used by
+          the standard library.
+ *
+ * - Compiler:           IAR EWAVR32
+ * - Supported devices:  All AVR32 devices with a USART module can be used.
+ * - AppNote:
+ *
+ * \author               Atmel Corporation: http://www.atmel.com \n
+ *                       Support email: avr32@atmel.com
+ *
+ ******************************************************************************/
+
+/* Copyright (c) 2007, Atmel Corporation All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ *
+ * 3. The name of ATMEL may not be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY ATMEL ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE EXPRESSLY AND
+ * SPECIFICALLY DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+
+#include <yfuns.h>
+#include <avr32/iouc3a0512.h>
+#include "usart.h"
+
+
+_STD_BEGIN
+
+
+#pragma module_name = "?__read"
+
+
+extern volatile avr32_usart_t *volatile stdio_usart_base;
+
+
+/*! \brief Reads a number of bytes, at most \a size, into the memory area
+ *         pointed to by \a buffer.
+ *
+ * \param handle File handle to read from.
+ * \param buffer Pointer to buffer to write read bytes to.
+ * \param size Number of bytes to read.
+ *
+ * \return The number of bytes read, \c 0 at the end of the file, or
+ *         \c _LLIO_ERROR on failure.
+ */
+size_t __read(int handle, unsigned char *buffer, size_t size)
+{
+  int nChars = 0;
+
+  // This implementation only reads from stdin.
+  // For all other file handles, it returns failure.
+  if (handle != _LLIO_STDIN)
+  {
+    return _LLIO_ERROR;
+  }
+
+  for (; size > 0; --size)
+  {
+    int c = usart_getchar(stdio_usart_base);
+    if (c < 0)
+      break;
+
+    *buffer++ = c;
+    ++nChars;
+  }
+
+  return nChars;
+}
+
+
+_STD_END