Moved remotely

git-svn-id: file:///srv/dev-disk-by-uuid-17e88007-4d0c-45e0-8757-cacfcc458630/repositories/svn/Diplomarbeit@113 9fe90eed-be63-e94b-8204-d34ff4c2ff93
2009-01-12 08:38:14 +00:00
parent 4e45654a5f
commit 6cc948eef8
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+/* ---------------------------------------------------------------------------
+ * dio.c - v0.1                                         (c) 2007 Micro-key bv
+ * ---------------------------------------------------------------------------
+ * Micro-key bv
+ * Industrieweg 28, 9804 TG Noordhorn
+ * Postbus 92, 9800 AB Zuidhorn
+ * The Netherlands
+ * Tel: +31 594 503020
+ * Fax: +31 594 505825
+ * Email: support@microkey.nl  
+ * Web: www.microkey.nl
+ * ---------------------------------------------------------------------------
+ * Description: Digital inputs/outputs interface.
+ * ---------------------------------------------------------------------------
+ * Version(s):  0.1, 28-11-2007, fvds.
+ *                   Creation.
+ * ---------------------------------------------------------------------------
+ */
+
+/* ---------------------------------------------------------------------------
+ * System include files
+ * ---------------------------------------------------------------------------
+ */
+#include <stdio.h>
+#include <stdlib.h>
+
+
+/* ---------------------------------------------------------------------------
+ * Application include files
+ * ---------------------------------------------------------------------------
+ */
+#include "LPC23xx.h"
+#include "types.h"
+#include "dio.h"
+#include "dioISR.h"
+#include "armVIC.h"
+
+/* FreeRTOS includes */
+#include "FreeRTOS.h"
+#include "Task.h"
+#include "queue.h"
+
+/* ---------------------------------------------------------------------------
+ * Local constant and macro definitions
+ * ---------------------------------------------------------------------------
+ */
+
+/* ---------------------------------------------------------------------------
+ * Global variable definitions
+ * ---------------------------------------------------------------------------
+ */
+extern xQueueHandle dispatchedIsrQueue;
+t_IsrDispatchQueueItem dispatchItem;
+
+/* ---------------------------------------------------------------------------
+ * Local variable definitions
+ * ---------------------------------------------------------------------------
+ */
+volatile UINT32 receivedInts = 0;
+
+/* ---------------------------------------------------------------------------
+ * Local function definitions
+ * ---------------------------------------------------------------------------
+ */
+static void GpioHandler( void );
+
+
+void gpioISR()
+{
+	/* Save the context of the interrupted task. */
+	portSAVE_CONTEXT();
+		{
+		/* Call the handler to do the work.  This must be a separate function to
+		the wrapper to ensure the correct stack frame is set up. */
+		GpioHandler();
+		}
+	/* Restore the context of whichever task is going to run once the interrupt
+	completes. */
+	portRESTORE_CONTEXT();
+}
+
+
+void GpioHandler( void )
+{
+	receivedInts++;
+	
+	// Check flags
+	// -=NOTE=- Because input signal is inverted; the rising and
+	//          falling signal are switched.
+	dispatchItem.riseInterrupts[0] = IO0_INT_STAT_F; 
+	dispatchItem.fallInterrupts[0] = IO0_INT_STAT_R; 
+	dispatchItem.riseInterrupts[1] = IO2_INT_STAT_R;
+	dispatchItem.fallInterrupts[1] = IO2_INT_STAT_F;
+
+	xQueueSendToBackFromISR( dispatchedIsrQueue, &dispatchItem, pdFALSE );
+	
+	IO0_INT_CLR = 0xFFFFFFFF;
+	IO2_INT_CLR = 0xFFFFFFFF;
+	
+	VICVectAddr = 0x00000000;             // clear this interrupt from the VIC
+}
+