Merge TinyOS 2.1.1 into master.

[tinyos-2.x.git] / tos / lib / tosboot / avr / ProgFlashC.nc

diff --git a/tos/lib/tosboot/avr/ProgFlashC.nc b/tos/lib/tosboot/avr/ProgFlashC.nc
new file mode 100644 (file)
index 0000000..a3796ee
--- /dev/null
+++ b/tos/lib/tosboot/avr/ProgFlashC.nc
@@ -0,0 +1,65 @@
+// $Id$
+
+/*
+ *
+ *
+ * "Copyright (c) 2000-2005 The Regents of the University  of California.  
+ * All rights reserved.
+ *
+ * Permission to use, copy, modify, and distribute this software and its
+ * documentation for any purpose, without fee, and without written agreement is
+ * hereby granted, provided that the above copyright notice, the following
+ * two paragraphs and the author appear in all copies of this software.
+ * 
+ * IN NO EVENT SHALL THE UNIVERSITY OF CALIFORNIA BE LIABLE TO ANY PARTY FOR
+ * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT
+ * OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF THE UNIVERSITY OF
+ * CALIFORNIA HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ * 
+ * THE UNIVERSITY OF CALIFORNIA SPECIFICALLY DISCLAIMS ANY WARRANTIES,
+ * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS FOR A PARTICULAR PURPOSE.  THE SOFTWARE PROVIDED HEREUNDER IS
+ * ON AN "AS IS" BASIS, AND THE UNIVERSITY OF CALIFORNIA HAS NO OBLIGATION TO
+ * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS."
+ *
+ */
+
+/**
+ * @author Jonathan Hui <jwhui@cs.berkeley.edu>
+ */
+
+module ProgFlashC {
+  provides {
+    interface ProgFlash;
+  }
+}
+
+implementation {
+
+#include <avr/boot.h>
+
+  command error_t ProgFlash.write(in_flash_addr_t addr, uint8_t* buf, in_flash_addr_t len) {
+
+    uint16_t* wordBuf = (uint16_t*)buf;
+    uint32_t i;
+
+    if ( addr + len > TOSBOOT_START )
+      return FAIL;    
+
+    boot_page_erase_safe( addr );
+    while( boot_rww_busy() )
+      boot_rww_enable_safe();
+    
+    for ( i = 0; i < len; i += 2 )
+      boot_page_fill_safe( addr + i, *wordBuf++ );
+
+    boot_page_write_safe( addr );
+    
+    while ( boot_rww_busy() )
+      boot_rww_enable_safe();
+    
+    return SUCCESS;
+    
+  }
+
+}