From f8da0ea20667f3fd7e4d5fc134d07122d840948a Mon Sep 17 00:00:00 2001
From: Niclas Finne <nfi@sics.se>
Date: Thu, 31 May 2012 01:54:55 +0200
Subject: [PATCH] Updated API for external flash for storage API in MSPSim

---
 .../interfaces/CoojaExternalFlash.java        | 88 +++++++++++++++++++
 .../cooja/mspmote/interfaces/CoojaM25P80.java | 49 +++++++++++
 2 files changed, 137 insertions(+)
 create mode 100644 tools/cooja/apps/mspsim/src/se/sics/cooja/mspmote/interfaces/CoojaExternalFlash.java

diff --git a/tools/cooja/apps/mspsim/src/se/sics/cooja/mspmote/interfaces/CoojaExternalFlash.java b/tools/cooja/apps/mspsim/src/se/sics/cooja/mspmote/interfaces/CoojaExternalFlash.java
new file mode 100644
index 000000000..0fba43af7
--- /dev/null
+++ b/tools/cooja/apps/mspsim/src/se/sics/cooja/mspmote/interfaces/CoojaExternalFlash.java
@@ -0,0 +1,88 @@
+/*
+ * Copyright (c) 2012, Swedish Institute of Computer Science.
+ * 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. Neither the name of the Institute nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``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 DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS 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.
+ *
+ */
+
+package se.sics.cooja.mspmote.interfaces;
+
+import java.io.IOException;
+import se.sics.coffee.CoffeeConfiguration;
+import se.sics.coffee.CoffeeImage;
+import se.sics.mspsim.chip.MemoryStorage;
+
+public class CoojaExternalFlash extends MemoryStorage implements CoffeeImage {
+
+    private final String target;
+    private CoffeeConfiguration coffeeConfiguration;
+
+    public CoojaExternalFlash(String target) {
+        this.target = target;
+    }
+
+    /**
+     * XXX Coffee specific: uses start offset
+     * @see se.sics.coffee.CoffeeImage#erase(int, int)
+     */
+    public void erase(int size, int offset) throws IOException {
+        byte[] buffer = new byte[size];
+        write(getConfiguration().startOffset + offset, buffer);
+    }
+
+    /**
+     * XXX Coffee specific: uses start offset
+     * @see se.sics.coffee.CoffeeImage#getConfiguration()
+     */
+    public CoffeeConfiguration getConfiguration() {
+        if (coffeeConfiguration == null) {
+            try {
+                coffeeConfiguration = new CoffeeConfiguration(target + ".properties");
+            } catch (Exception e) {
+                // Failed to retrieve coffee configuration
+                throw new IllegalStateException("no Coffee configuration available for platform " + target);
+            }
+        }
+        return coffeeConfiguration;
+    }
+
+    /**
+     * XXX Coffee specific: uses start offset
+     * @see se.sics.coffee.CoffeeImage#read(byte[], int, int)
+     */
+    public void read(byte[] bytes, int size, int offset) throws IOException {
+        read(getConfiguration().startOffset + offset, bytes, 0, size);
+    }
+
+    /**
+     * XXX Coffee specific: uses start offset
+     * @see se.sics.coffee.CoffeeImage#write(byte[], int, int)
+     */
+    public void write(byte[] bytes, int size, int offset) throws IOException {
+        read(getConfiguration().startOffset + offset, bytes, 0, size);
+    }
+
+}
diff --git a/tools/cooja/apps/mspsim/src/se/sics/cooja/mspmote/interfaces/CoojaM25P80.java b/tools/cooja/apps/mspsim/src/se/sics/cooja/mspmote/interfaces/CoojaM25P80.java
index 11edda76d..afc1b6a17 100644
--- a/tools/cooja/apps/mspsim/src/se/sics/cooja/mspmote/interfaces/CoojaM25P80.java
+++ b/tools/cooja/apps/mspsim/src/se/sics/cooja/mspmote/interfaces/CoojaM25P80.java
@@ -36,6 +36,7 @@ import java.util.Arrays;
 import se.sics.coffee.CoffeeConfiguration;
 import se.sics.coffee.CoffeeImage;
 import se.sics.mspsim.chip.M25P80;
+import se.sics.mspsim.chip.Storage;
 import se.sics.mspsim.core.MSP430Core;
 
 public class CoojaM25P80 extends M25P80 implements CoffeeImage {
@@ -43,6 +44,53 @@ public class CoojaM25P80 extends M25P80 implements CoffeeImage {
   public static int SIZE = 1024*1024;
   private byte[] data = new byte[SIZE];
   private long pos;
+  private Storage storage = new Storage() {
+
+    @Override
+    public int read(long pos, byte[] buffer) throws IOException {
+        System.arraycopy(data, (int) pos, buffer, 0, buffer.length);
+        return buffer.length;
+    }
+
+    @Override
+    public int read(long pos, byte[] buffer, int offset, int len)
+            throws IOException {
+        System.arraycopy(data, (int) pos, buffer, offset, len);
+        return len;
+    }
+
+    @Override
+    public void write(long pos, byte[] buffer) throws IOException {
+        System.arraycopy(buffer, 0, data, (int) pos, buffer.length);
+    }
+
+    @Override
+    public void write(long pos, byte[] buffer, int offset, int len)
+            throws IOException {
+        System.arraycopy(buffer, offset, data, (int) pos, len);
+    }
+
+    @Override
+    public long getMaxSize() {
+        return SIZE;
+    }
+
+    @Override
+    public void setMaxSize(long size) {
+        // Ignore
+    }
+
+    @Override
+    public void close() {
+        // Nothing to close
+    }
+
+    @Override
+    public String info() {
+        return CoojaM25P80.class.getName();
+    }
+
+  };
 
   private static CoffeeConfiguration COFFEE_CONF;
   static {
@@ -57,6 +105,7 @@ public class CoojaM25P80 extends M25P80 implements CoffeeImage {
   public CoojaM25P80(MSP430Core cpu) {
     super(cpu);
     pos = 0;
+    setStorage(storage);
   }
 
   public void seek(long pos) throws IOException {