Merge TinyOS 2.1.1 into master.

[tinyos-2.x.git] / tos / chips / rf2xx / util / BareSend.nc

diff --git a/tos/chips/rf2xx/util/BareSend.nc b/tos/chips/rf2xx/util/BareSend.nc
new file mode 100644 (file)
index 0000000..29a398d
--- /dev/null
+++ b/tos/chips/rf2xx/util/BareSend.nc
@@ -0,0 +1,54 @@
+/*
+ * Copyright (c) 2009, Vanderbilt University
+ * All rights reserved.
+ *
+ * Permission to use, copy, modify, and distribute this software and its
+ * documentation for any purpose, without fee, and without written agreement is
+ * hereby granted, provided that the above copyright notice, the following
+ * two paragraphs and the author appear in all copies of this software.
+ * 
+ * IN NO EVENT SHALL THE VANDERBILT UNIVERSITY BE LIABLE TO ANY PARTY FOR
+ * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT
+ * OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF THE VANDERBILT
+ * UNIVERSITY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ * 
+ * THE VANDERBILT UNIVERSITY SPECIFICALLY DISCLAIMS ANY WARRANTIES,
+ * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS FOR A PARTICULAR PURPOSE.  THE SOFTWARE PROVIDED HEREUNDER IS
+ * ON AN "AS IS" BASIS, AND THE VANDERBILT UNIVERSITY HAS NO OBLIGATION TO
+ * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
+ *
+ * Author: Miklos Maroti
+ */
+
+interface BareSend
+{
+       /**
+        * Starts the transmission of the given message. This command must not
+        * be called while another send is in progress (so one must wait for the
+        * sendDone event). Returns EBUSY if a reception is in progress or for
+        * some other reason the request cannot be temporarily satisfied (e.g.
+        * the SPI bus access could not be acquired). In this case the send 
+        * command could be retried from a task. Returns SUCCESS if the 
+        * transmission could be started. In this case sendDone will be fired.
+        */
+       command error_t send(message_t* msg);
+       
+       /**
+        * Signals the completion of the send command, exactly once for each 
+        * successfull send command. If the returned error code is SUCCESS, then 
+        * the message was sent (may not have been acknowledged), otherwise 
+        * the message was not transmitted over the air.
+        */
+       event void sendDone(message_t* msg, error_t error);
+
+       /**
+        * Cancel a requested transmission. Returns SUCCESS if the 
+        * transmission was cancelled properly (not sent in its
+        * entirety). Note that the component may not know
+        * if the send was successfully cancelled, if the radio is
+        * handling much of the logic; in this case, a component
+        * should be conservative and return an appropriate error code.
+        */
+       command error_t cancel(message_t* msg);
+}