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Add support for NAD receivers (#5191)
* Add support for NAD receivers * remove self.update() in various methods * remove setting attributes in various methods * Change import to hass style
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""" | ||
Support for interfacing with NAD receivers through RS-232. | ||
For more details about this platform, please refer to the documentation at | ||
https://home-assistant.io/components/media_player.nad/ | ||
""" | ||
import logging | ||
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import voluptuous as vol | ||
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from homeassistant.components.media_player import ( | ||
SUPPORT_VOLUME_SET, | ||
SUPPORT_VOLUME_MUTE, SUPPORT_TURN_ON, SUPPORT_TURN_OFF, | ||
SUPPORT_VOLUME_STEP, SUPPORT_SELECT_SOURCE, MediaPlayerDevice, | ||
PLATFORM_SCHEMA) | ||
from homeassistant.const import ( | ||
CONF_NAME, STATE_OFF, STATE_ON) | ||
import homeassistant.helpers.config_validation as cv | ||
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REQUIREMENTS = ['https://github.com/joopert/nad_receiver/archive/' | ||
'0.0.2.zip#nad_receiver==0.0.2'] | ||
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_LOGGER = logging.getLogger(__name__) | ||
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DEFAULT_NAME = 'NAD Receiver' | ||
DEFAULT_MIN_VOLUME = -92 | ||
DEFAULT_MAX_VOLUME = -20 | ||
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SUPPORT_NAD = SUPPORT_VOLUME_SET | SUPPORT_VOLUME_MUTE | \ | ||
SUPPORT_TURN_ON | SUPPORT_TURN_OFF | SUPPORT_VOLUME_STEP | \ | ||
SUPPORT_SELECT_SOURCE | ||
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CONF_SERIAL_PORT = 'serial_port' | ||
CONF_MIN_VOLUME = 'min_volume' | ||
CONF_MAX_VOLUME = 'max_volume' | ||
CONF_SOURCE_DICT = 'sources' | ||
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SOURCE_DICT_SCHEMA = vol.Schema({ | ||
vol.Range(min=1, max=10): cv.string | ||
}) | ||
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PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({ | ||
vol.Required(CONF_SERIAL_PORT): cv.string, | ||
vol.Optional(CONF_NAME, default=DEFAULT_NAME): cv.string, | ||
vol.Optional(CONF_MIN_VOLUME, default=DEFAULT_MIN_VOLUME): int, | ||
vol.Optional(CONF_MAX_VOLUME, default=DEFAULT_MAX_VOLUME): int, | ||
vol.Optional(CONF_SOURCE_DICT, default={}): SOURCE_DICT_SCHEMA, | ||
}) | ||
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def setup_platform(hass, config, add_devices, discovery_info=None): | ||
"""Setup the NAD platform.""" | ||
from nad_receiver import NADReceiver | ||
add_devices([NAD( | ||
config.get(CONF_NAME), | ||
NADReceiver(config.get(CONF_SERIAL_PORT)), | ||
config.get(CONF_MIN_VOLUME), | ||
config.get(CONF_MAX_VOLUME), | ||
config.get(CONF_SOURCE_DICT) | ||
)]) | ||
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class NAD(MediaPlayerDevice): | ||
"""Representation of a NAD Receiver.""" | ||
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def __init__(self, name, nad_receiver, min_volume, max_volume, | ||
source_dict): | ||
"""Initialize the NAD Receiver device.""" | ||
self._name = name | ||
self._nad_receiver = nad_receiver | ||
self._min_volume = min_volume | ||
self._max_volume = max_volume | ||
self._source_dict = source_dict | ||
self._reverse_mapping = {value: key for key, value in | ||
self._source_dict.items()} | ||
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self._volume = None | ||
self._state = None | ||
self._mute = None | ||
self._source = None | ||
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self.update() | ||
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def calc_volume(self, decibel): | ||
""" | ||
Calculate the volume given the decibel. | ||
Return the volume (0..1). | ||
""" | ||
return abs(self._min_volume - decibel) / abs( | ||
self._min_volume - self._max_volume) | ||
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def calc_db(self, volume): | ||
""" | ||
Calculate the decibel given the volume. | ||
Return the dB. | ||
""" | ||
return self._min_volume + round( | ||
abs(self._min_volume - self._max_volume) * volume) | ||
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@property | ||
def name(self): | ||
"""Return the name of the device.""" | ||
return self._name | ||
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@property | ||
def state(self): | ||
"""Return the state of the device.""" | ||
return self._state | ||
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def update(self): | ||
"""Retrieve latest state.""" | ||
if self._nad_receiver.main_power('?') == 'Off': | ||
self._state = STATE_OFF | ||
else: | ||
self._state = STATE_ON | ||
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if self._nad_receiver.main_mute('?') == 'Off': | ||
self._mute = False | ||
else: | ||
self._mute = True | ||
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self._volume = self.calc_volume(self._nad_receiver.main_volume('?')) | ||
self._source = self._source_dict.get( | ||
self._nad_receiver.main_source('?')) | ||
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@property | ||
def volume_level(self): | ||
"""Volume level of the media player (0..1).""" | ||
return self._volume | ||
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@property | ||
def is_volume_muted(self): | ||
"""Boolean if volume is currently muted.""" | ||
return self._mute | ||
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@property | ||
def supported_media_commands(self): | ||
"""Flag of media commands that are supported.""" | ||
return SUPPORT_NAD | ||
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def turn_off(self): | ||
"""Turn the media player off.""" | ||
self._nad_receiver.main_power('=', 'Off') | ||
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def turn_on(self): | ||
"""Turn the media player on.""" | ||
self._nad_receiver.main_power('=', 'On') | ||
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def volume_up(self): | ||
"""Volume up the media player.""" | ||
self._nad_receiver.main_volume('+') | ||
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def volume_down(self): | ||
"""Volume down the media player.""" | ||
self._nad_receiver.main_volume('-') | ||
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def set_volume_level(self, volume): | ||
"""Set volume level, range 0..1.""" | ||
self._nad_receiver.main_volume('=', self.calc_db(volume)) | ||
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def select_source(self, source): | ||
"""Select input source.""" | ||
self._nad_receiver.main_source('=', self._reverse_mapping.get(source)) | ||
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@property | ||
def source(self): | ||
"""Name of the current input source.""" | ||
return self._source | ||
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@property | ||
def source_list(self): | ||
"""List of available input sources.""" | ||
return sorted(list(self._reverse_mapping.keys())) | ||
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def mute_volume(self, mute): | ||
"""Mute (true) or unmute (false) media player.""" | ||
if mute: | ||
self._nad_receiver.main_mute('=', 'On') | ||
else: | ||
self._nad_receiver.main_mute('=', 'Off') |
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