1 files changed, 142 insertions, 0 deletions
diff --git a/memories/norflash/NorFlashCommon.c b/memories/norflash/NorFlashCommon.c
new file mode 100644
index 0000000..2e18372
--- /dev/null
+++ b/memories/norflash/NorFlashCommon.c
@@ -0,0 +1,142 @@
+/* ----------------------------------------------------------------------------
+ *         ATMEL Microcontroller Software Support 
+ * ----------------------------------------------------------------------------
+ * Copyright (c) 2008, 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:
+ *
+ * - Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the disclaimer below.
+ *
+ * Atmel's name may not be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
+ * 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.
+ * ----------------------------------------------------------------------------
+ */
+
+//------------------------------------------------------------------------------
+//         Headers
+//------------------------------------------------------------------------------
+#include "NorFlashCommon.h"
+
+#include <utility/trace.h>
+#include <string.h>
+
+//------------------------------------------------------------------------------
+//         Internal macros
+//------------------------------------------------------------------------------
+
+#define WRITE_COMMAND8(commandAddress, command) \
+    {*(volatile unsigned char *)(commandAddress) = (unsigned char) command;}
+#define WRITE_COMMAND16(commandAddress, command) \
+    {*(volatile unsigned short *)(commandAddress) = (unsigned short) command;}
+#define WRITE_COMMAND32(commandAddress, command) \
+    {*(volatile unsigned int *)(commandAddress) = (unsigned int) command;}
+    
+#define WRITE_DATA8(dataAddress, data) \
+    {(*((volatile unsigned char *) dataAddress)) = (unsigned char) data;}
+#define WRITE_DATA16(dataAddress, data) \
+    {(*((volatile unsigned short *) dataAddress)) = (unsigned short) data;}
+#define WRITE_DATA32(dataAddress, data) \
+    {(*((volatile unsigned int *) dataAddress)) = (unsigned int) data;}
+    
+#define READ_DATA8(dataAddress) \
+    (*((volatile unsigned char *) dataAddress))
+#define READ_DATA16(dataAddress) \
+    (*((volatile unsigned short *) dataAddress))
+#define READ_DATA32(dataAddress) \
+    (*((volatile unsigned int *) dataAddress))
+    
+    
+//------------------------------------------------------------------------------
+//         Exported functions
+//------------------------------------------------------------------------------
+
+//------------------------------------------------------------------------------
+/// Write a command to address.
+/// \param busWidth Bus width in device.
+/// \param commandAddress Command address offset.
+/// \param command Command to be send.
+//------------------------------------------------------------------------------
+unsigned char WriteCommand(
+    unsigned char busWidth, 
+    unsigned int commandAddress, 
+    unsigned int command)
+{
+    if (busWidth == 8 ){
+        WRITE_COMMAND8(commandAddress, command);
+    }
+    else if( busWidth == 16 ){
+        WRITE_COMMAND16(commandAddress, command);
+    }
+    else if(busWidth == 32 ){
+        WRITE_COMMAND32(commandAddress, command);
+    }
+    return 0;
+}
+
+
+//------------------------------------------------------------------------------
+/// Reads data from the NorFlash chip into the provided buffer.
+/// \param busWidth  Bus width in device.
+/// \param address  Address of data.
+/// \param buffer  Buffer where the data will be stored.
+//------------------------------------------------------------------------------
+void ReadRawData(
+    unsigned char busWidth,
+    unsigned int  address,
+    unsigned char *buffer)
+{
+    if (busWidth == 8 ){    
+            *buffer = READ_DATA8(address);
+    }
+    else if( busWidth == 16 ){
+        
+        unsigned short *buffer16 = (unsigned short *) buffer;
+        *buffer16 = READ_DATA16(address);
+    }
+    else if(busWidth == 32 ){
+        unsigned int *buffer32 = (unsigned int *) buffer;
+        *buffer32 = READ_DATA32(address);
+    }
+}
+
+//------------------------------------------------------------------------------
+/// Writes data to the NorFlash chip from the provided buffer.
+/// \param busWidth  Bus width in device.
+/// \param address  Address of data.
+/// \param buffer  Buffer where the data will be stored.
+//------------------------------------------------------------------------------
+
+void WriteRawData(
+    unsigned char busWidth,
+    unsigned int  address,
+    unsigned char *buffer)
+
+{
+    if (busWidth == 8 ){    
+        WRITE_DATA8(address, *buffer);
+    }
+    else if( busWidth == 16 ){
+        unsigned short *buffer16 = (unsigned short *) buffer;
+        WRITE_DATA16(address, *buffer16);
+    }
+    else if(busWidth == 32 ){
+        unsigned int *buffer32 = (unsigned int *) buffer;
+        WRITE_DATA32(address, *buffer32);
+    }
+}
+