Diff: system/timer.cpp

Revision:

2:d119a85c793c

Child:

18:18408c3c2d0c

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/system/timer.cpp	Wed May 18 00:44:52 2016 +0000
@@ -0,0 +1,78 @@
+/*
+ / _____)             _              | |
+( (____  _____ ____ _| |_ _____  ____| |__
+ \____ \| ___ |    (_   _) ___ |/ ___)  _ \
+ _____) ) ____| | | || |_| ____( (___| | | |
+(______/|_____)_|_|_| \__)_____)\____)_| |_|
+    (C)2013 Semtech
+
+Description: Timer objects and scheduling management
+
+License: Revised BSD License, see LICENSE.TXT file include in the project
+
+Maintainer: Miguel Luis and Gregory Cristian
+*/
+#include "board.h"
+
+Timer TimeCounter;
+Ticker LoadTimeCounter;
+
+volatile uint32_t CurrentTime = 0;
+
+void TimerResetTimeCounter( void )
+{
+    CurrentTime = CurrentTime + TimeCounter.read_us( );
+    TimeCounter.reset( );
+    TimeCounter.start( );
+}
+
+void TimerTimeCounterInit( void )
+{
+    TimeCounter.start( );
+    LoadTimeCounter.attach( &TimerResetTimeCounter, 10 );
+}
+
+TimerTime_t TimerGetCurrentTime( void )
+{
+    CurrentTime += TimeCounter.read_us( );
+    TimeCounter.reset( );
+    TimeCounter.start( );
+    return ( ( TimerTime_t )CurrentTime );
+}
+
+TimerTime_t TimerGetElapsedTime( TimerTime_t savedTime )
+{
+    CurrentTime += TimeCounter.read_us( );
+    TimeCounter.reset( );
+    TimeCounter.start( );
+    return ( TimerTime_t )( CurrentTime - savedTime );
+}
+
+TimerTime_t TimerGetFutureTime( TimerTime_t eventInFuture )
+{
+    CurrentTime += TimeCounter.read_us( );
+    TimeCounter.reset( );
+    TimeCounter.start( );
+    return ( TimerTime_t )( CurrentTime + eventInFuture );
+}
+
+void TimerInit( TimerEvent_t *obj, void ( *callback )( void ) )
+{
+    obj->value = 0;
+    obj->Callback = callback;
+}
+
+void TimerStart( TimerEvent_t *obj )
+{
+    obj->Timer.attach_us( obj->Callback, obj->value );
+}
+
+void TimerStop( TimerEvent_t *obj )
+{
+    obj->Timer.detach( );
+}
+
+void TimerSetValue( TimerEvent_t *obj, uint32_t value )
+{
+    obj->value = value;
+}