Diff: Display/BiosTouch.cpp

Revision:

24:9a677afc86f1

Parent:

23:6afd6a716e80

Child:

26:a65fbb4bde5c

--- a/Display/BiosTouch.cpp	Fri Jan 16 11:15:57 2015 +0100
+++ b/Display/BiosTouch.cpp	Sat Jan 17 14:12:37 2015 +0100
@@ -89,13 +89,13 @@
 static void touchIrqEnabler(uint32_t arg, bool enable, bool rising)
 {
   ((TouchHandler*)arg)->changeTouchInterrupt(enable, rising);
-#if defined(DM_BOARD_ENABLE_MEASSURING_PINS)
-  if (enable) {
-    SET_MEAS_PIN_1();
-  } else {
-    CLR_MEAS_PIN_1();
-  }
-#endif
+//#if defined(DM_BOARD_ENABLE_MEASSURING_PINS)
+//  if (enable) {
+//    SET_MEAS_PIN_1();
+//  } else {
+//    CLR_MEAS_PIN_1();
+//  }
+//#endif
 }
 
 static void touchTask(void const* args)
@@ -115,7 +115,46 @@
     mbed_die();
   }
   memset(_latest, 0, _points*sizeof(touch_coordinate_t));
+  uint32_t maxDelay = osWaitForever;
+SET_MEAS_PIN_1();
   while(true) {
+#if 1
+      osEvent evt = Thread::signal_wait(SIG_NEW_DATA, maxDelay);
+      if (evt.status == osEventTimeout) {
+        // got a timeout after the last touch event, now go back to
+        // waiting forever for the next one
+        maxDelay = osWaitForever;
+SET_MEAS_PIN_1();
+      } else {
+        // normal event, start a timeout to make sure that we get an
+        // event when the user stops fiddling with the display
+        //maxDelay = 10;
+CLR_MEAS_PIN_1();
+      }
+SET_MEAS_PIN_3();
+      _bios->touchIrqHandler(_biosData);
+CLR_MEAS_PIN_3();
+      
+      _mutex.lock();
+      err = _bios->touchRead(_biosData, _latest, _points);
+      FunctionPointer* fp = _listener;
+      _mutex.unlock();
+
+      if (err == BiosError_Ok) {
+        //notify registered callbacks
+        if (fp != NULL) {
+SET_MEAS_PIN_4();
+          fp->call();
+CLR_MEAS_PIN_4();
+        }
+      } else {
+        log->printf("Failed to read touch event, err = %d\n", err);
+      }
+      
+      // mode 2 - wait max 10ms for touch event and simulate
+      //          one if there isn't anyone (for the "touch up"
+      //          event)
+#else      
       Thread::signal_wait(SIG_NEW_DATA);
 //    if (_haveData) {
 //      _haveData = false;
@@ -132,12 +171,13 @@
         if (fp != NULL) {
       SET_MEAS_PIN_4();
           fp->call();
-      SET_MEAS_PIN_4();
+      CLR_MEAS_PIN_4();
         }
       } else {
         log->printf("Failed to read touch event, err = %d\n", err);
       }
 //    }
+#endif      
   }
   //if (_latest != NULL) {
   //  free(_latest);