shadow components to use with MultihopLQI

diff --git a/tos/platforms/eyesIFX/net/lqi/CC2420ActiveMessageC.nc b/tos/platforms/eyesIFX/net/lqi/CC2420ActiveMessageC.nc
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+/* -*- mode:c++; indent-tabs-mode:nil -*- 
+ * Copyright (c) 2008, Technische Universitaet Berlin
+ * 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 following disclaimer.
+ * - 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.
+ * - Neither the name of the Technische Universitaet Berlin 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 COPYRIGHT HOLDERS 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 COPYRIGHT 
+ * OWNER 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.
+ */
+
+/**
+ * Pseudo module to enable MultihopLqi on eyesIFX. The mapping of
+ * strength to LQI is based on the packet delivery ratio.  For CC2420
+ * the ratios were taken from: Kannan Srinivasan and Philip Levis:
+ * "RSSI is Under Appreciated" Third Workshop on Embedded Networked
+ * Sensors, EmNets 2006.
+ * 
+ * @author Andreas Köpke <koepke@tkn.tu-berlin.de>
+ */
+
+#include "radiopacketfunctions.h"
+
+module CC2420ActiveMessageC {
+    provides {
+        interface CC2420Packet;
+    }
+}
+implementation {
+    async command uint8_t CC2420Packet.getPower(message_t* p_msg ) {
+        return 31;
+    }
+    async command void CC2420Packet.setPower(message_t* p_msg, uint8_t power) {
+    }
+    async command int8_t CC2420Packet.getRssi(message_t* p_msg ) {
+        return (getMetadata(p_msg))->strength;
+    }
+    async command uint8_t CC2420Packet.getLqi( message_t* p_msg ) {
+        uint32_t s = (getMetadata(p_msg))->strength;
+        if(s > 60) s = 10;
+        return (s*13/5 + 48);
+    }
+}

diff --git a/tos/platforms/eyesIFX/net/lqi/CC2420Packet.nc b/tos/platforms/eyesIFX/net/lqi/CC2420Packet.nc
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+/*
+ * Copyright (c) 2005-2006 Arch Rock 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 following disclaimer.
+ * - 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.
+ * - Neither the name of the Arch Rock Corporation 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 COPYRIGHT HOLDERS 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
+ * ARCHED ROCK OR ITS 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
+ */
+
+/**
+ * @author Jonathan Hui <jhui@archrock.com>
+ * @author David Moss
+ * @author Chad Metcalf
+ */
+
+#include "message.h"
+
+interface CC2420Packet {
+  
+  /**
+   * Get transmission power setting for current packet.
+   *
+   * @param the message
+   */
+  async command uint8_t getPower( message_t* p_msg );
+
+  /**
+   * Set transmission power for a given packet. Valid ranges are
+   * between 0 and 31.
+   *
+   * @param p_msg the message.
+   * @param power transmission power.
+   */
+  async command void setPower( message_t* p_msg, uint8_t power );
+  
+  /**
+   * Get rssi value for a given packet. For received packets, it is
+   * the received signal strength when receiving that packet. For sent
+   * packets, it is the received signal strength of the ack if an ack
+   * was received.
+   */
+  async command int8_t getRssi( message_t* p_msg );
+
+  /**
+   * Get lqi value for a given packet. For received packets, it is the
+   * link quality indicator value when receiving that packet. For sent
+   * packets, it is the link quality indicator value of the ack if an
+   * ack was received.
+   */
+  async command uint8_t getLqi( message_t* p_msg );
+  
+}