Merge TinyOS 2.1.1 into master.

[tinyos-2.x.git] / tos / chips / m16c62p / timer / M16c62pTimerAInitC.nc

diff --git a/tos/chips/m16c62p/timer/M16c62pTimerAInitC.nc b/tos/chips/m16c62p/timer/M16c62pTimerAInitC.nc
new file mode 100755 (executable)
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+++ b/tos/chips/m16c62p/timer/M16c62pTimerAInitC.nc
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+/*
+ * Copyright (c) 2009 Communication Group and Eislab at
+ * Lulea University of Technology
+ *
+ * Contact: Laurynas Riliskis, LTU
+ * Mail: laurynas.riliskis@ltu.se
+ * 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 Communication Group at Lulea University of Technology
+ *   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 STANFORD
+ * UNIVERSITY 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.
+ */
+
+/**
+ * Initialize an M16c/62p TimerA to a particular mode. Expected to be
+ * used at boot time.
+ * @param mode The desired mode of the timer.
+ * @param count_src Count source if applicable.
+ *
+ * @author Henrik Makitaavola <henrik.makitaavola@gmail.com>
+ */
+ 
+#include "M16c62pTimer.h"
+
+generic module M16c62pTimerAInitC(uint8_t mode,
+                                  uint8_t count_src,
+                                  uint16_t reload,
+                                  bool enable_interrupt,
+                                  bool start,
+                                  bool allow_stop_mode)
+{
+  provides interface Init @atleastonce();
+  uses interface HplM16c62pTimerACtrl as TimerCtrl;
+  uses interface HplM16c62pTimer as Timer;
+}
+implementation
+{
+  command error_t Init.init()
+  {
+    st_timer timer = {0};
+    sta_counter counter = {0};
+    sta_one_shot one_shot = {0};
+
+    atomic
+    {
+      call Timer.allowStopMode(allow_stop_mode);
+      if (mode == TMR_TIMER_MODE)
+      {
+        timer.gate_func = M16C_TMR_TMR_GF_NO_GATE;
+        timer.count_src = count_src;
+
+        call TimerCtrl.setTimerMode(timer);
+        call Timer.set(reload);
+      }
+      else if (mode == TMR_COUNTER_MODE)
+      {
+        // 'tmp' only used for avoiding "large integer
+        // implicitly truncated to unsigned type" warning 
+        counter.event_source = count_src;
+
+        call TimerCtrl.setCounterMode(counter);
+        call Timer.set(reload);
+      }
+      else if (mode == TMR_ONE_SHOT_MODE)
+      {
+        one_shot.trigger = M16C_TMRA_OS_T_TAiOS;
+        one_shot.count_src = count_src;
+        call TimerCtrl.setOneShotMode(one_shot);
+      }
+      if (enable_interrupt)
+      {
+        call Timer.enableInterrupt();
+      }
+      if (start)
+      {
+        call Timer.on();
+      }
+
+    }
+    return SUCCESS;
+  }
+
+  async event void Timer.fired() {}
+}