examples/libgpio: add libgpio examples

Signed-off-by: Perry Melange <[email protected]>

Author: pmelange

examples/libgpio/export-gpio.yaml

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+desk:
+    LibGPIO:
+        gpiochip: '/dev/gpiochip0'
+        line: 10
+        active_low: False

examples/libgpio/import-gpio.yaml

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+targets:
+  main:
+    resources:
+      RemotePlace:
+        name: gpio
+    drivers:
+      LibGPIODigitalOutputDriver: {}

examples/libgpio/libgpio.py

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+import logging
+import time
+
+from labgrid import Target
+from labgrid.logging import basicConfig, StepLogger
+from labgrid.driver import LibGPIODigitalOutputDriver
+from labgrid.resource import LibGPIO
+
+# enable info logging
+basicConfig(level=logging.INFO)
+
+# show labgrid steps on the console
+StepLogger.start()
+
+t = Target("main")
+r = LibGPIO(t, name=None, gpiochip="/dev/gpiochip0", line=10, active_low=True)
+d = LibGPIODigitalOutputDriver(t, name=None)
+
+p = t.get_driver("DigitalOutputProtocol")
+print(t.resources)
+print("Testing IO")
+p.set(True)
+print(p.get())
+time.sleep(2)
+p.set(False)
+print(p.get())
+time.sleep(2)
+p.set(True)
+print(p.get())
+
+print("Testing Power")
+p.off()
+print(p.get())
+time.sleep(2)
+p.on()
+print(p.get())
+time.sleep(2)
+p.cycle()
+print(p.get())
+time.sleep(2)
+
+print("Testing Button")
+p.release()
+print(p.get())
+time.sleep(2)
+p.press()
+print(p.get())
+time.sleep(2)
+p.toggle()
+print(p.get())
+time.sleep(2)
+p.toggle_for()
+print(p.get())
+

examples/libgpio/libgpio_remote.py

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+import logging
+import time
+
+from labgrid import Environment
+from labgrid.logging import basicConfig, StepLogger
+
+# enable info logging
+basicConfig(level=logging.INFO)
+
+# show labgrid steps on the console
+StepLogger.start()
+
+e = Environment("import-gpio.yaml")
+t = e.get_target()
+
+p = t.get_driver("DigitalOutputProtocol")
+print("Testing IO")
+print(t.resources)
+p.set(True)
+print(p.get())
+time.sleep(2)
+p.set(False)
+print(p.get())
+time.sleep(2)
+p.set(True)
+print(p.get())
+time.sleep(2)
+
+print("Testing Power")
+print(t.resources)
+p.off()
+time.sleep(2)
+print(p.get())
+p.on()
+print(p.get())
+time.sleep(2)
+p.cycle()
+print(p.get())
+
+print("Testing Button")
+print(t.resources)
+p.release()
+print(p.get())
+time.sleep(2)
+p.press()
+print(p.get())
+time.sleep(2)
+p.toggle()
+print(p.get())
+time.sleep(2)
+p.toggle_for()
+print(p.get())
+