Diff: MyInterruptHandler.cpp

Revision:

0:918566a376fb

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/MyInterruptHandler.cpp	Sun Jan 03 11:56:03 2010 +0000
@@ -0,0 +1,106 @@
+/*
+* FiniteStateMachine. Table driven Finite State Machine library 
+* based on theHarel state machine, supporting actions on transitions, state
+* entry and state exit.
+*
+* Copyright (C) <2009> Petras Saduikis <petras@petras.co.uk>
+*
+* This file is part of FiniteStateMachine.
+*
+* FiniteStateMachine is free software: you can redistribute it and/or modify
+* it under the terms of the GNU General Public License as published by
+* the Free Software Foundation, either version 3 of the License, or
+* (at your option) any later version.
+* 
+* FiniteStateMachine is distributed in the hope that it will be useful,
+* but WITHOUT ANY WARRANTY; without even the implied warranty of
+* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+* GNU General Public License for more details.
+*
+* You should have received a copy of the GNU General Public License
+* along with DebugTrace.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include <mbed.h>
+#include "MyInterruptHandler.h"
+#include "FSMDefs.h"
+#include "FSM.h"
+#include "DebugTrace.h"
+
+DebugTrace pc(ON, TO_SERIAL);
+
+typedef void (MyInterruptHandler::* clientActionPtr)( );
+
+// states
+const char* S_START     = "Start";
+const char* S_LED_SEQ1  = "LedSeq1";
+const char* S_LED_SEQ2  = "LedSeq2";
+
+const StateDefinition<clientActionPtr> states[] = 
+   {// state,        entry action,                         exit action
+       S_START,       NULL,                                NULL,
+       S_LED_SEQ1,    &MyInterruptHandler::ledSequence1,   NULL,
+       S_LED_SEQ2,    &MyInterruptHandler::ledSequence2,   NULL
+   };
+const int total_states = sizeof(states)/sizeof(StateDefinition<clientActionPtr>);
+
+// transitions
+const TransitionDefinition<clientActionPtr> transitions[] = 
+   {// start state,     event,          type        transition action,    end state
+       S_START,         (int)intr1,     actions,    NULL,                 S_LED_SEQ1,
+       S_LED_SEQ1,      (int)intr2,     actions,    NULL,                 S_LED_SEQ2,
+       S_LED_SEQ2,      (int)intr1,     actions,    NULL,                 S_LED_SEQ1,
+       S_LED_SEQ1,      (int)tickr1,    actions,    NULL,                 S_LED_SEQ1,
+       S_LED_SEQ2,      (int)tickr1,    actions,    NULL,                 S_LED_SEQ2,
+   };
+const int total_transitions = sizeof(transitions)/sizeof(TransitionDefinition<clientActionPtr>);
+
+// declare a state machine
+static FiniteStateMachine<MyInterruptHandler, clientActionPtr, total_states> itsStateMachine;
+
+// put LEDs on a bus for convenience
+BusOut leds(LED1, LED2, LED3, LED4);
+
+
+MyInterruptHandler::MyInterruptHandler() : interrupt1(p5), interrupt2(p6)
+{
+    // init state machine
+    itsStateMachine.initialize(this, states, total_states, transitions, total_transitions, S_START);
+    
+    // attach callbacks for interrupts and timer
+    interrupt1.rise(this, &MyInterruptHandler::intrhandler1);
+    interrupt2.rise(this, &MyInterruptHandler::intrhandler2);
+    ticker1.attach(this, &MyInterruptHandler::tickerhandler1, 0.5);
+}
+
+void MyInterruptHandler::processEvent(clientEvent event_id)
+{
+    itsStateMachine.traverse((int)event_id);
+}
+
+void MyInterruptHandler::intrhandler1()
+{
+    processEvent(intr1);
+}
+
+void MyInterruptHandler::intrhandler2()
+{
+    processEvent(intr2);
+}
+
+void MyInterruptHandler::tickerhandler1()
+{
+    processEvent(tickr1);
+}
+
+void MyInterruptHandler::ledSequence1()
+{
+    pc.traceOut("ledSequence1\r\n");
+    (0x00 == leds || 0x08 == leds) ? leds = 1 : leds = leds << 1;
+}
+
+void MyInterruptHandler::ledSequence2()
+{
+    pc.traceOut("ledSequence2\r\n");
+    (0x00 == leds || 0x01 == leds) ? leds = 8 : leds = leds >> 1;
+}