Added a volume set option and autodiscovery functions to Denon AVR rece… (#4845)

* Added Volume Set option and autodiscovery functions to Denon AVR receivers

* Corrected issues in SSDP discovery and in case no host could be discovered

* Corrected discovery handling / added denonavr to discovery platform

* No needless discoveries anymore / add_devices() with list instead of loop

homeassistant/components/discovery.py

@@ -14,7 +14,7 @@ import voluptuous as vol
 from homeassistant.const import EVENT_HOMEASSISTANT_START
 from homeassistant.helpers.discovery import load_platform, discover
 
-REQUIREMENTS = ['netdisco==0.8.0']
+REQUIREMENTS = ['netdisco==0.8.1']
 
 DOMAIN = 'discovery'
 
@@ -36,6 +36,7 @@ SERVICE_HANDLERS = {
     'yamaha': ('media_player', 'yamaha'),
     'logitech_mediaserver': ('media_player', 'squeezebox'),
     'directv': ('media_player', 'directv'),
+    'denonavr': ('media_player', 'denonavr'),
 }
 
 CONFIG_SCHEMA = vol.Schema({

homeassistant/components/media_player/denonavr.py

@@ -13,26 +13,27 @@ from homeassistant.components.media_player import (
     SUPPORT_TURN_OFF, SUPPORT_VOLUME_MUTE, SUPPORT_VOLUME_STEP,
     SUPPORT_SELECT_SOURCE, SUPPORT_PLAY_MEDIA, MEDIA_TYPE_CHANNEL,
     MediaPlayerDevice, PLATFORM_SCHEMA, SUPPORT_TURN_ON,
-    MEDIA_TYPE_MUSIC)
+    MEDIA_TYPE_MUSIC, SUPPORT_VOLUME_SET)
 from homeassistant.const import (
     CONF_HOST, STATE_OFF, STATE_PLAYING, STATE_PAUSED,
     CONF_NAME, STATE_ON)
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['denonavr==0.1.6']
+REQUIREMENTS = ['denonavr==0.2.2']
 
 _LOGGER = logging.getLogger(__name__)
 
 DEFAULT_NAME = None
+KEY_DENON_CACHE = 'denonavr_hosts'
 
 SUPPORT_DENON = SUPPORT_VOLUME_STEP | SUPPORT_VOLUME_MUTE | \
     SUPPORT_TURN_ON | SUPPORT_TURN_OFF | \
     SUPPORT_SELECT_SOURCE | SUPPORT_PLAY_MEDIA | \
     SUPPORT_PAUSE | SUPPORT_PREVIOUS_TRACK | \
-    SUPPORT_NEXT_TRACK
+    SUPPORT_NEXT_TRACK | SUPPORT_VOLUME_SET
 
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
-    vol.Required(CONF_HOST): cv.string,
+    vol.Optional(CONF_HOST): cv.string,
     vol.Optional(CONF_NAME, default=DEFAULT_NAME): cv.string,
 })
 
@@ -41,11 +42,53 @@ def setup_platform(hass, config, add_devices, discovery_info=None):
     """Setup the Denon platform."""
     import denonavr
 
-    receiver = denonavr.DenonAVR(config.get(CONF_HOST), config.get(CONF_NAME))
+    # Initialize list with receivers to be started
+    receivers = []
 
-    add_devices([DenonDevice(receiver)])
-    _LOGGER.info("Denon receiver at host %s initialized",
-                 config.get(CONF_HOST))
+    cache = hass.data.get(KEY_DENON_CACHE)
+    if cache is None:
+        cache = hass.data[KEY_DENON_CACHE] = set()
+
+    # Start assignment of host and name
+    # 1. option: manual setting
+    if config.get(CONF_HOST) is not None:
+        host = config.get(CONF_HOST)
+        name = config.get(CONF_NAME)
+        # Check if host not in cache, append it and save for later starting
+        if host not in cache:
+            cache.add(host)
+            receivers.append(
+                DenonDevice(denonavr.DenonAVR(host, name)))
+            _LOGGER.info("Denon receiver at host %s initialized", host)
+    # 2. option: discovery using netdisco
+    if discovery_info is not None:
+        host = discovery_info[0]
+        name = discovery_info[1]
+        # Check if host not in cache, append it and save for later starting
+        if host not in cache:
+            cache.add(host)
+            receivers.append(
+                DenonDevice(denonavr.DenonAVR(host, name)))
+            _LOGGER.info("Denon receiver at host %s initialized", host)
+    # 3. option: discovery using denonavr library
+    if config.get(CONF_HOST) is None and discovery_info is None:
+        d_receivers = denonavr.discover()
+        # More than one receiver could be discovered by that method
+        if d_receivers is not None:
+            for d_receiver in d_receivers:
+                host = d_receiver["host"]
+                name = d_receiver["friendlyName"]
+                # Check if host not in cache, append it and save for later
+                # starting
+                if host not in cache:
+                    cache.add(host)
+                    receivers.append(
+                        DenonDevice(denonavr.DenonAVR(host, name)))
+                    _LOGGER.info("Denon receiver at host %s initialized", host)
+
+    # Add all freshly discovered receivers
+    if receivers:
+        add_devices(receivers)
 
 
 class DenonDevice(MediaPlayerDevice):
@@ -107,7 +150,8 @@ class DenonDevice(MediaPlayerDevice):
     @property
     def volume_level(self):
         """Volume level of the media player (0..1)."""
-        # Volume is send in a format like -50.0. Minimum is around -80.0
+        # Volume is sent in a format like -50.0. Minimum is -80.0,
+        # maximum is 18.0
         return (float(self._volume) + 80) / 100
 
     @property
@@ -240,6 +284,22 @@ class DenonDevice(MediaPlayerDevice):
         """Volume down media player."""
         return self._receiver.volume_down()
 
+    def set_volume_level(self, volume):
+        """Set volume level, range 0..1."""
+        # Volume has to be sent in a format like -50.0. Minimum is -80.0,
+        # maximum is 18.0
+        volume_denon = float((volume * 100) - 80)
+        if volume_denon > 18:
+            volume_denon = float(18)
+        try:
+            if self._receiver.set_volume(volume_denon):
+                self._volume = volume_denon
+                return True
+            else:
+                return False
+        except ValueError:
+            return False
+
     def mute_volume(self, mute):
         """Send mute command."""
         return self._receiver.mute(mute)

requirements_all.txt

@@ -76,7 +76,7 @@ colorlog>2.1,<3
 concord232==0.14
 
 # homeassistant.components.media_player.denonavr
-denonavr==0.1.6
+denonavr==0.2.2
 
 # homeassistant.components.media_player.directv
 directpy==0.1
@@ -302,7 +302,7 @@ mficlient==0.3.0
 miflora==0.1.13
 
 # homeassistant.components.discovery
-netdisco==0.8.0
+netdisco==0.8.1
 
 # homeassistant.components.sensor.neurio_energy
 neurio==0.2.10