Adds Orange Pi GPIO platform (#22541)

* Adds Orange Pi GPIO platform

* Add manifest.json

* Remove cover platform

* Apply requested changes

* Remove switch platform

* Update CODEOWNERS

* Remove obsolete dependecies/requirements

.coveragerc

@@ -418,6 +418,7 @@ omit =
     homeassistant/components/openweathermap/sensor.py
     homeassistant/components/openweathermap/weather.py
     homeassistant/components/opple/light.py
+    homeassistant/components/orangepi_gpio/*
     homeassistant/components/orvibo/switch.py
     homeassistant/components/osramlightify/light.py
     homeassistant/components/otp/sensor.py

CODEOWNERS

@@ -161,6 +161,7 @@ homeassistant/components/ohmconnect/* @robbiet480
 homeassistant/components/onboarding/* @home-assistant/core
 homeassistant/components/openuv/* @bachya
 homeassistant/components/openweathermap/* @fabaff
+homeassistant/components/orangepi_gpio/* @pascallj
 homeassistant/components/owlet/* @oblogic7
 homeassistant/components/panel_custom/* @home-assistant/core
 homeassistant/components/panel_iframe/* @home-assistant/core

homeassistant/components/orangepi_gpio/__init__.py

@@ -0,0 +1,81 @@
+"""Support for controlling GPIO pins of a Orange Pi."""
+import logging
+
+from homeassistant.const import (
+    EVENT_HOMEASSISTANT_START, EVENT_HOMEASSISTANT_STOP)
+
+_LOGGER = logging.getLogger(__name__)
+
+CONF_PINMODE = 'pinmode'
+DOMAIN = 'orangepi_gpio'
+PINMODES = ['pc', 'zeroplus', 'zeroplus2', 'deo', 'neocore2']
+
+
+def setup(hass, config):
+    """Set up the Orange Pi GPIO component."""
+    from OPi import GPIO
+
+    def cleanup_gpio(event):
+        """Stuff to do before stopping."""
+        GPIO.cleanup()
+
+    def prepare_gpio(event):
+        """Stuff to do when home assistant starts."""
+        hass.bus.listen_once(EVENT_HOMEASSISTANT_STOP, cleanup_gpio)
+
+    hass.bus.listen_once(EVENT_HOMEASSISTANT_START, prepare_gpio)
+    return True
+
+
+def setup_mode(mode):
+    """Set GPIO pin mode."""
+    from OPi import GPIO
+
+    if mode == 'pc':
+        import orangepi.pc
+        GPIO.setmode(orangepi.pc.BOARD)
+    elif mode == 'zeroplus':
+        import orangepi.zeroplus
+        GPIO.setmode(orangepi.zeroplus.BOARD)
+    elif mode == 'zeroplus2':
+        import orangepi.zeroplus
+        GPIO.setmode(orangepi.zeroplus2.BOARD)
+    elif mode == 'duo':
+        import nanopi.duo
+        GPIO.setmode(nanopi.duo.BOARD)
+    elif mode == 'neocore2':
+        import nanopi.neocore2
+        GPIO.setmode(nanopi.neocore2.BOARD)
+
+
+def setup_output(port):
+    """Set up a GPIO as output."""
+    from OPi import GPIO
+    GPIO.setup(port, GPIO.OUT)
+
+
+def setup_input(port):
+    """Set up a GPIO as input."""
+    from OPi import GPIO
+    GPIO.setup(port, GPIO.IN)
+
+
+def write_output(port, value):
+    """Write a value to a GPIO."""
+    from OPi import GPIO
+    GPIO.output(port, value)
+
+
+def read_input(port):
+    """Read a value from a GPIO."""
+    from OPi import GPIO
+    return GPIO.input(port)
+
+
+def edge_detect(port, event_callback):
+    """Add detection for RISING and FALLING events."""
+    from OPi import GPIO
+    GPIO.add_event_detect(
+        port,
+        GPIO.BOTH,
+        callback=event_callback)

homeassistant/components/orangepi_gpio/binary_sensor.py

@@ -0,0 +1,68 @@
+"""Support for binary sensor using Orange Pi GPIO."""
+import logging
+
+from homeassistant.components import orangepi_gpio
+from homeassistant.components.binary_sensor import (
+    BinarySensorDevice, PLATFORM_SCHEMA)
+from homeassistant.const import DEVICE_DEFAULT_NAME
+
+from . import CONF_PINMODE
+from .const import CONF_INVERT_LOGIC, CONF_PORTS, PORT_SCHEMA
+
+_LOGGER = logging.getLogger(__name__)
+
+PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend(PORT_SCHEMA)
+
+
+def setup_platform(hass, config, add_entities, discovery_info=None):
+    """Set up the Orange Pi GPIO devices."""
+    pinmode = config[CONF_PINMODE]
+    orangepi_gpio.setup_mode(pinmode)
+
+    invert_logic = config[CONF_INVERT_LOGIC]
+
+    binary_sensors = []
+    ports = config[CONF_PORTS]
+    for port_num, port_name in ports.items():
+        binary_sensors.append(OPiGPIOBinarySensor(
+            port_name, port_num, invert_logic))
+    add_entities(binary_sensors, True)
+
+
+class OPiGPIOBinarySensor(BinarySensorDevice):
+    """Represent a binary sensor that uses Orange Pi GPIO."""
+
+    def __init__(self, name, port, invert_logic):
+        """Initialize the Orange Pi binary sensor."""
+        self._name = name or DEVICE_DEFAULT_NAME
+        self._port = port
+        self._invert_logic = invert_logic
+        self._state = None
+
+        orangepi_gpio.setup_input(self._port)
+
+        def read_gpio(port):
+            """Read state from GPIO."""
+            self._state = orangepi_gpio.read_input(self._port)
+            self.schedule_update_ha_state()
+
+        orangepi_gpio.edge_detect(self._port, read_gpio)
+
+    @property
+    def should_poll(self):
+        """No polling needed."""
+        return False
+
+    @property
+    def name(self):
+        """Return the name of the sensor."""
+        return self._name
+
+    @property
+    def is_on(self):
+        """Return the state of the entity."""
+        return self._state != self._invert_logic
+
+    def update(self):
+        """Update the GPIO state."""
+        self._state = orangepi_gpio.read_input(self._port)

homeassistant/components/orangepi_gpio/const.py

@@ -0,0 +1,21 @@
+"""Constants for Orange Pi GPIO."""
+import voluptuous as vol
+
+from homeassistant.helpers import config_validation as cv
+
+from . import CONF_PINMODE, PINMODES
+
+CONF_INVERT_LOGIC = 'invert_logic'
+CONF_PORTS = 'ports'
+
+DEFAULT_INVERT_LOGIC = False
+
+_SENSORS_SCHEMA = vol.Schema({
+    cv.positive_int: cv.string,
+})
+
+PORT_SCHEMA = {
+    vol.Required(CONF_PORTS): _SENSORS_SCHEMA,
+    vol.Required(CONF_PINMODE): vol.In(PINMODES),
+    vol.Optional(CONF_INVERT_LOGIC, default=DEFAULT_INVERT_LOGIC): cv.boolean,
+}

homeassistant/components/orangepi_gpio/manifest.json

@@ -0,0 +1,12 @@
+{
+  "domain": "orangepi_gpio",
+  "name": "Orangepi GPIO",
+  "documentation": "https://www.home-assistant.io/components/orangepi_gpio",
+  "requirements": [
+    "OPi.GPIO==0.3.6"
+  ],
+  "dependencies": [],
+  "codeowners": [
+    "@pascallj"
+  ]
+}

requirements_all.txt

@@ -38,6 +38,9 @@ HAP-python==2.5.0
 # homeassistant.components.mastodon
 Mastodon.py==1.3.1
 
+# homeassistant.components.orangepi_gpio
+OPi.GPIO==0.3.6
+
 # homeassistant.components.github
 PyGithub==1.43.5