Merge TinyOS 2.1.1 into master.

[tinyos-2.x.git] / tos / platforms / micaz / mac / tkn154 / TKN154_platform.h

diff --git a/tos/platforms/micaz/mac/tkn154/TKN154_platform.h b/tos/platforms/micaz/mac/tkn154/TKN154_platform.h
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+/*
+ * 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.
+ *
+ * - Revision -------------------------------------------------------------
+ * $Revision$
+ * $Date$
+ * @author Jan Hauer <hauer@tkn.tu-berlin.de>
+ * ========================================================================
+ */
+
+#ifndef __TKN154_platform_H
+#define __TKN154_platform_H
+
+/**************************************************** 
+ * The following constants define guard times on MicaZ. 
+ * All values are in symbol time (1 symbol = 16 us)
+ */
+
+enum {
+  // the expected maximum time between calling a transmit() operation and
+  // the radio putting the first byte on the channel assuming no CSMA-CA
+  IEEE154_RADIO_TX_DELAY = 400,
+
+  // the expected maximum time between calling a receive() operation and the 
+  // the radio actually being put in receive mode
+  IEEE154_RADIO_RX_DELAY = 400,
+
+  // defines at what time the MAC payload for a beacon frame is assembled before
+  // the next scheduled beacon transmission time; the value must be smaller than 
+  // the beacon interval plus the time for preparing the Tx operation
+  BEACON_PAYLOAD_UPDATE_INTERVAL = 2500, 
+};
+
+typedef uint32_t ieee154_timestamp_t;
+
+#endif
+