Add GPIO cleanup function to remove event detection.

Author: tdicola

Adafruit_GPIO/GPIO.py

@@ -121,6 +121,12 @@ def wait_for_edge(self, pin, edge):
         FALLING or BOTH."""
         raise NotImplementedError
 
+    def cleanup(self, pin=None):
+        """Clean up GPIO event detection for specific pin, or all pins if none 
+        is specified.
+        """
+        raise NotImplementedError
+
 class RPiGPIOAdapter(BaseGPIO):
     """GPIO implementation for the Raspberry Pi using the RPi.GPIO library."""
 
@@ -203,6 +209,15 @@ def wait_for_edge(self, pin, edge):
         """
         self.rpi_gpio.wait_for_edge(pin, self._edge_mapping[edge])
 
+    def cleanup(self, pin=None):
+        """Clean up GPIO event detection for specific pin, or all pins if none 
+        is specified.
+        """
+        if pin is None:
+            self.rpi_gpio.cleanup()
+        else:
+            self.rpi_gpio.cleanup(pin)
+
 class AdafruitBBIOAdapter(BaseGPIO):
     """GPIO implementation for the Beaglebone Black using the Adafruit_BBIO
     library.
@@ -281,6 +296,15 @@ def wait_for_edge(self, pin, edge):
         """
         self.bbio_gpio.wait_for_edge(pin, self._edge_mapping[edge])
 
+    def cleanup(self, pin=None):
+        """Clean up GPIO event detection for specific pin, or all pins if none 
+        is specified.
+        """
+        if pin is None:
+            self.bbio_gpio.cleanup()
+        else:
+            self.bbio_gpio.cleanup(pin)
+
 
 def get_platform_gpio(**keywords):
     """Attempt to return a GPIO instance for the platform which the code is being

setup.py

@@ -11,7 +11,7 @@
     requires.append('spidev')
 
 setup(name              = 'Adafruit_GPIO',
-      version           = '0.7',
+      version           = '0.7.1',
       author            = 'Tony DiCola',
       author_email      = 'tdicola@adafruit.com',
       description       = 'Library to provide a cross-platform GPIO interface on the Raspberry Pi and Beaglebone Black using the RPi.GPIO and Adafruit_BBIO libraries.',

test/test_GPIO.py

@@ -118,6 +118,18 @@ def test_wait_for_edge(self):
         adapter.wait_for_edge(1, GPIO.FALLING)
         rpi_gpio.wait_for_edge.assert_called_with(1, rpi_gpio.FALLING)
 
+    def test_cleanup(self):
+        rpi_gpio = Mock()
+        adapter = GPIO.AdafruitBBIOAdapter(rpi_gpio)
+        adapter.cleanup()
+        rpi_gpio.cleanup.assert_called()
+
+    def test_cleanup_pin(self):
+        rpi_gpio = Mock()
+        adapter = GPIO.AdafruitBBIOAdapter(rpi_gpio)
+        adapter.cleanup(1)
+        rpi_gpio.cleanup.assert_called_with(1)
+
 
 class TestAdafruitBBIOAdapter(unittest.TestCase):
     def test_setup(self):
@@ -184,6 +196,18 @@ def test_wait_for_edge(self):
         adapter.wait_for_edge(1, GPIO.FALLING)
         bbio_gpio.wait_for_edge.assert_called_with(1, bbio_gpio.FALLING)
 
+    def test_cleanup(self):
+        bbio_gpio = Mock()
+        adapter = GPIO.AdafruitBBIOAdapter(bbio_gpio)
+        adapter.cleanup()
+        bbio_gpio.cleanup.assert_called()
+
+    def test_cleanup_pin(self):
+        bbio_gpio = Mock()
+        adapter = GPIO.AdafruitBBIOAdapter(bbio_gpio)
+        adapter.cleanup(1)
+        bbio_gpio.cleanup.assert_called_with(1)
+
 
 class TestGetPlatformGPIO(unittest.TestCase):
     @patch.dict('sys.modules', {'RPi': Mock(), 'RPi.GPIO': Mock()})