From ec1677ca6c1c30f14538b2286717621c9a3d8a32 Mon Sep 17 00:00:00 2001
From: adamdunkels <adamdunkels>
Date: Mon, 23 Mar 2009 21:06:26 +0000
Subject: [PATCH] Added a function (quick hack) that sets the radio
 transmission power of outgoing announcement packets in xmac

---
 core/net/mac/xmac.c | 14 +++++++++++++-
 core/net/mac/xmac.h |  4 +++-
 2 files changed, 16 insertions(+), 2 deletions(-)

diff --git a/core/net/mac/xmac.c b/core/net/mac/xmac.c
index 7d9d2d969..137011795 100644
--- a/core/net/mac/xmac.c
+++ b/core/net/mac/xmac.c
@@ -28,7 +28,7 @@
  *
  * This file is part of the Contiki operating system.
  *
- * $Id: xmac.c,v 1.29 2009/03/23 21:00:25 adamdunkels Exp $
+ * $Id: xmac.c,v 1.30 2009/03/23 21:06:26 adamdunkels Exp $
  */
 
 /**
@@ -162,6 +162,8 @@ static const struct radio_driver *radio;
 #if XMAC_CONF_ANNOUNCEMENTS
 /* Timers for keeping track of when to send announcements. */
 static struct ctimer announcement_cycle_ctimer, announcement_ctimer;
+
+static int announcement_radio_txpower;
 #endif /* XMAC_CONF_ANNOUNCEMENTS */
 
 /* Flag that is used to keep track of whether or not we are listening
@@ -704,6 +706,8 @@ send_announcement(void *ptr)
 
   if(announcement_len > 0) {
     packetbuf_set_datalen(sizeof(struct xmac_hdr) + announcement_len);
+
+    packetbuf_set_attr(PACKETBUF_ATTR_RADIO_TXPOWER, announcement_radio_txpower);
     radio->send(packetbuf_hdrptr(), packetbuf_totlen());
   }
 }
@@ -727,6 +731,14 @@ listen_callback(int periods)
 }
 #endif /* XMAC_CONF_ANNOUNCEMENTS */
 /*---------------------------------------------------------------------------*/
+void
+xmac_set_announcement_radio_txpower(int txpower)
+{
+#if XMAC_CONF_ANNOUNCEMENTS
+  announcement_radio_txpower = txpower;
+#endif /* XMAC_CONF_ANNOUNCEMENTS */
+}
+/*---------------------------------------------------------------------------*/
 const struct mac_driver *
 xmac_init(const struct radio_driver *d)
 {
diff --git a/core/net/mac/xmac.h b/core/net/mac/xmac.h
index 23df1217d..38b7a075a 100644
--- a/core/net/mac/xmac.h
+++ b/core/net/mac/xmac.h
@@ -28,7 +28,7 @@
  *
  * This file is part of the Contiki operating system.
  *
- * $Id: xmac.h,v 1.6 2007/11/12 22:29:37 adamdunkels Exp $
+ * $Id: xmac.h,v 1.7 2009/03/23 21:06:26 adamdunkels Exp $
  */
 
 /**
@@ -64,4 +64,6 @@ const struct mac_driver *xmac_init(const struct radio_driver *d);
 
 extern struct xmac_config xmac_config;
 
+void xmac_set_announcement_radio_txpower(int txpower);
+
 #endif /* __XMAC_H__ */