1 files changed, 143 insertions, 0 deletions
diff --git a/openpicc/os/core/MemMang/heap_1.c b/openpicc/os/core/MemMang/heap_1.c
new file mode 100644
index 0000000..8370479
--- /dev/null
+++ b/openpicc/os/core/MemMang/heap_1.c
@@ -0,0 +1,143 @@
+/*
+	FreeRTOS.org V4.2.1 - Copyright (C) 2003-2007 Richard Barry.
+
+	This file is part of the FreeRTOS.org distribution.
+
+	FreeRTOS.org 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 2 of the License, or
+	(at your option) any later version.
+
+	FreeRTOS.org 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 FreeRTOS.org; if not, write to the Free Software
+	Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+	A special exception to the GPL can be applied should you wish to distribute
+	a combined work that includes FreeRTOS.org, without being obliged to provide
+	the source code for any proprietary components.  See the licensing section 
+	of http://www.FreeRTOS.org for full details of how and when the exception
+	can be applied.
+
+	***************************************************************************
+	See http://www.FreeRTOS.org for documentation, latest information, license 
+	and contact details.  Please ensure to read the configuration and relevant 
+	port sections of the online documentation.
+
+	Also see http://www.SafeRTOS.com for an IEC 61508 compliant version along
+	with commercial development and support options.
+	***************************************************************************
+*/
+
+/* 
+
+Changes between V2.5.1 and V2.5.1
+
+	+ The memory pool has been defined within a struct to ensure correct memory
+	  alignment on 32bit systems.
+
+Changes between V2.6.1 and V3.0.0
+
+	+ An overflow check has been added to ensure the next free byte variable 
+	  does not wrap around.
+*/
+
+
+/*
+ * The simplest possible implementation of pvPortMalloc().  Note that this
+ * implementation does NOT allow allocated memory to be freed again.
+ *
+ * See heap_2.c and heap_3.c for alternative implementations, and the memory
+ * management pages of http://www.FreeRTOS.org for more information.
+ */
+#include <stdlib.h>
+#include "FreeRTOS.h"
+#include "task.h"
+
+/* Setup the correct byte alignment mask for the defined byte alignment. */
+
+#if portBYTE_ALIGNMENT == 8
+#define heapBYTE_ALIGNMENT_MASK ( ( size_t ) 0x0007 )
+#endif
+
+#if portBYTE_ALIGNMENT == 4
+#define heapBYTE_ALIGNMENT_MASK	( ( size_t ) 0x0003 )
+#endif
+
+#if portBYTE_ALIGNMENT == 2
+#define heapBYTE_ALIGNMENT_MASK	( ( size_t ) 0x0001 )
+#endif
+
+#if portBYTE_ALIGNMENT == 1
+#define heapBYTE_ALIGNMENT_MASK	( ( size_t ) 0x0000 )
+#endif
+
+#ifndef heapBYTE_ALIGNMENT_MASK
+#error "Invalid portBYTE_ALIGNMENT definition"
+#endif
+
+/* Allocate the memory for the heap.  The struct is used to force byte
+alignment without using any non-portable code. */
+static struct xRTOS_HEAP
+{
+  unsigned portLONG ulDummy;
+  unsigned portCHAR ucHeap[configTOTAL_HEAP_SIZE];
+} xHeap;
+
+static size_t xNextFreeByte = (size_t) 0;
+/*-----------------------------------------------------------*/
+
+void *
+pvPortMalloc (size_t xWantedSize)
+{
+  void *pvReturn = NULL;
+
+  /* Ensure that blocks are always aligned to the required number of bytes. */
+#if portBYTE_ALIGNMENT != 1
+  if (xWantedSize & heapBYTE_ALIGNMENT_MASK)
+    {
+      /* Byte alignment required. */
+      xWantedSize +=
+	(portBYTE_ALIGNMENT - (xWantedSize & heapBYTE_ALIGNMENT_MASK));
+    }
+#endif
+
+  vTaskSuspendAll ();
+  {
+    /* Check there is enough room left for the allocation. */
+    if (((xNextFreeByte + xWantedSize) < configTOTAL_HEAP_SIZE) && ((xNextFreeByte + xWantedSize) > xNextFreeByte))	/* Check for overflow. */
+      {
+	/* Return the next free byte then increment the index past this
+	   block. */
+	pvReturn = &(xHeap.ucHeap[xNextFreeByte]);
+	xNextFreeByte += xWantedSize;
+      }
+  }
+  xTaskResumeAll ();
+
+  return pvReturn;
+}
+
+/*-----------------------------------------------------------*/
+
+void
+vPortFree (void *pv)
+{
+  /* Memory cannot be freed using this scheme.  See heap_2.c and heap_3.c 
+     for alternative implementations, and the memory management pages of 
+     http://www.FreeRTOS.org for more information. */
+  (void) pv;
+}
+
+/*-----------------------------------------------------------*/
+
+void
+vPortInitialiseBlocks (void)
+{
+  /* Only required when static memory is not cleared. */
+  xNextFreeByte = (size_t) 0;
+}