From f7060f62d941269b18795ce4bac6fc802a7ead63 Mon Sep 17 00:00:00 2001
From: andreaskoepke <andreaskoepke>
Date: Tue, 24 Jul 2007 12:22:42 +0000
Subject: [PATCH] add accessor function for strength field

---
 tos/chips/tda5250/Tda5250ActiveMessageC.nc |  2 +
 tos/chips/tda5250/Tda5250ActiveMessageP.nc | 20 +++++++---
 tos/chips/tda5250/Tda5250Packet.nc         | 43 ++++++++++++++++++++++
 3 files changed, 59 insertions(+), 6 deletions(-)
 create mode 100644 tos/chips/tda5250/Tda5250Packet.nc

diff --git a/tos/chips/tda5250/Tda5250ActiveMessageC.nc b/tos/chips/tda5250/Tda5250ActiveMessageC.nc
index a620d055..611937c8 100644
--- a/tos/chips/tda5250/Tda5250ActiveMessageC.nc
+++ b/tos/chips/tda5250/Tda5250ActiveMessageC.nc
@@ -58,6 +58,7 @@ configuration Tda5250ActiveMessageC {
     interface AMPacket;
     interface Packet;
     interface PacketAcknowledgements;
+    interface Tda5250Packet;	
   }
 }
 implementation {
@@ -69,6 +70,7 @@ implementation {
 
   Packet       = Radio;
   PacketAcknowledgements = Radio;
+  Tda5250Packet = AM;		
 
   AMSend   = AM;
   Receive  = AM.Receive;
diff --git a/tos/chips/tda5250/Tda5250ActiveMessageP.nc b/tos/chips/tda5250/Tda5250ActiveMessageP.nc
index f46eb588..c44da61d 100644
--- a/tos/chips/tda5250/Tda5250ActiveMessageP.nc
+++ b/tos/chips/tda5250/Tda5250ActiveMessageP.nc
@@ -1,6 +1,5 @@
-// $Id$
-
-/*                                                                      tab:4
+// -*- mode:c++; indent-tabs-mode: nil -*- $Id$
+/* 
  * "Copyright (c) 2004-2005 The Regents of the University  of California.
  * All rights reserved.
  *
@@ -47,6 +46,7 @@ module Tda5250ActiveMessageP {
     interface Receive[am_id_t id];
     interface Receive as Snoop[am_id_t id];
     interface AMPacket;
+    interface Tda5250Packet;
   }
   uses {
     interface Send as SubSend;
@@ -57,10 +57,14 @@ module Tda5250ActiveMessageP {
 }
 implementation {
 
-  tda5250_header_t* getHeader( message_t* msg ) {
-                return (tda5250_header_t*)( msg->data - sizeof(tda5250_header_t) );
-  }
+    tda5250_header_t* getHeader( message_t* msg ) {
+        return (tda5250_header_t*)( msg->data - sizeof(tda5250_header_t) );
+    }
 
+    tda5250_metadata_t* getMetadata(message_t* amsg) {
+        return (tda5250_metadata_t*)((uint8_t*)amsg->footer + sizeof(message_radio_footer_t));
+    }
+    
   command error_t AMSend.send[am_id_t id](am_addr_t addr,
                                           message_t* msg,
                                           uint8_t len) {
@@ -164,6 +168,10 @@ implementation {
   command am_group_t AMPacket.localGroup() {
     return TOS_AM_GROUP;
   }
+
+  async command uint8_t Tda5250Packet.getSnr(message_t* msg) {
+      return getMetadata(msg)->strength;
+  }
   
  default event message_t* Receive.receive[am_id_t id](message_t* msg, void* payload, uint8_t len) {
     return msg;
diff --git a/tos/chips/tda5250/Tda5250Packet.nc b/tos/chips/tda5250/Tda5250Packet.nc
new file mode 100644
index 00000000..17effea8
--- /dev/null
+++ b/tos/chips/tda5250/Tda5250Packet.nc
@@ -0,0 +1,43 @@
+/* -*- mode:c++; indent-tabs-mode: nil -*-
+ * Copyright (c) 2007, 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.
+ *
+ * $Revision$
+ * $Date$
+ */
+
+/**
+ * Access the specific fields of this radio
+ * @author: Andreas Koepke <koepke@tkn.tu-berlin.de>
+ */
+
+
+#include "message.h"
+
+interface Tda5250Packet {
+    async command uint8_t getSnr(message_t* msg);
+}
-- 
2.39.2