328 lines
10 KiB
Python
328 lines
10 KiB
Python
"""Support for interfacing with NAD receivers through RS-232."""
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import logging
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import voluptuous as vol
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import homeassistant.helpers.config_validation as cv
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from homeassistant.components.media_player import (
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MediaPlayerDevice, PLATFORM_SCHEMA)
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from homeassistant.components.media_player.const import (
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SUPPORT_SELECT_SOURCE, SUPPORT_TURN_OFF, SUPPORT_TURN_ON,
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SUPPORT_VOLUME_MUTE, SUPPORT_VOLUME_SET, SUPPORT_VOLUME_STEP)
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from homeassistant.const import CONF_NAME, STATE_OFF, STATE_ON, CONF_HOST
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_LOGGER = logging.getLogger(__name__)
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DEFAULT_TYPE = 'RS232'
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DEFAULT_SERIAL_PORT = '/dev/ttyUSB0'
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DEFAULT_PORT = 53
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DEFAULT_NAME = 'NAD Receiver'
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DEFAULT_MIN_VOLUME = -92
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DEFAULT_MAX_VOLUME = -20
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DEFAULT_VOLUME_STEP = 4
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SUPPORT_NAD = SUPPORT_VOLUME_SET | SUPPORT_VOLUME_MUTE | \
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SUPPORT_TURN_ON | SUPPORT_TURN_OFF | SUPPORT_VOLUME_STEP | \
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SUPPORT_SELECT_SOURCE
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CONF_TYPE = 'type'
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CONF_SERIAL_PORT = 'serial_port' # for NADReceiver
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CONF_PORT = 'port' # for NADReceiverTelnet
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CONF_MIN_VOLUME = 'min_volume'
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CONF_MAX_VOLUME = 'max_volume'
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CONF_VOLUME_STEP = 'volume_step' # for NADReceiverTCP
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CONF_SOURCE_DICT = 'sources' # for NADReceiver
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SOURCE_DICT_SCHEMA = vol.Schema({
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vol.Range(min=1, max=10): cv.string
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})
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PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
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vol.Optional(CONF_TYPE, default=DEFAULT_TYPE):
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vol.In(['RS232', 'Telnet', 'TCP']),
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vol.Optional(CONF_SERIAL_PORT, default=DEFAULT_SERIAL_PORT):
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cv.string,
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vol.Optional(CONF_HOST): cv.string,
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vol.Optional(CONF_PORT, default=DEFAULT_PORT): int,
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vol.Optional(CONF_NAME, default=DEFAULT_NAME): cv.string,
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vol.Optional(CONF_MIN_VOLUME, default=DEFAULT_MIN_VOLUME): int,
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vol.Optional(CONF_MAX_VOLUME, default=DEFAULT_MAX_VOLUME): int,
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vol.Optional(CONF_SOURCE_DICT, default={}): SOURCE_DICT_SCHEMA,
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vol.Optional(CONF_VOLUME_STEP, default=DEFAULT_VOLUME_STEP): int,
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})
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def setup_platform(hass, config, add_entities, discovery_info=None):
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"""Set up the NAD platform."""
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if config.get(CONF_TYPE) == 'RS232':
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from nad_receiver import NADReceiver
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add_entities([NAD(
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config.get(CONF_NAME),
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NADReceiver(config.get(CONF_SERIAL_PORT)),
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config.get(CONF_MIN_VOLUME),
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config.get(CONF_MAX_VOLUME),
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config.get(CONF_SOURCE_DICT)
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)], True)
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elif config.get(CONF_TYPE) == 'Telnet':
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from nad_receiver import NADReceiverTelnet
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add_entities([NAD(
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config.get(CONF_NAME),
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NADReceiverTelnet(config.get(CONF_HOST),
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config.get(CONF_PORT)),
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config.get(CONF_MIN_VOLUME),
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config.get(CONF_MAX_VOLUME),
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config.get(CONF_SOURCE_DICT)
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)], True)
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else:
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from nad_receiver import NADReceiverTCP
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add_entities([NADtcp(
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config.get(CONF_NAME),
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NADReceiverTCP(config.get(CONF_HOST)),
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config.get(CONF_MIN_VOLUME),
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config.get(CONF_MAX_VOLUME),
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config.get(CONF_VOLUME_STEP),
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)], True)
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class NAD(MediaPlayerDevice):
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"""Representation of a NAD Receiver."""
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def __init__(self, name, nad_receiver, min_volume, max_volume,
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source_dict):
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"""Initialize the NAD Receiver device."""
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self._name = name
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self._nad_receiver = nad_receiver
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self._min_volume = min_volume
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self._max_volume = max_volume
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self._source_dict = source_dict
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self._reverse_mapping = {value: key for key, value in
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self._source_dict.items()}
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self._volume = self._state = self._mute = self._source = None
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@property
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def name(self):
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"""Return the name of the device."""
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return self._name
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@property
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def state(self):
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"""Return the state of the device."""
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return self._state
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@property
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def volume_level(self):
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"""Volume level of the media player (0..1)."""
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return self._volume
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@property
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def is_volume_muted(self):
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"""Boolean if volume is currently muted."""
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return self._mute
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@property
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def supported_features(self):
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"""Flag media player features that are supported."""
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return SUPPORT_NAD
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def turn_off(self):
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"""Turn the media player off."""
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self._nad_receiver.main_power('=', 'Off')
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def turn_on(self):
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"""Turn the media player on."""
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self._nad_receiver.main_power('=', 'On')
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def volume_up(self):
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"""Volume up the media player."""
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self._nad_receiver.main_volume('+')
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def volume_down(self):
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"""Volume down the media player."""
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self._nad_receiver.main_volume('-')
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def set_volume_level(self, volume):
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"""Set volume level, range 0..1."""
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self._nad_receiver.main_volume('=', self.calc_db(volume))
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def mute_volume(self, mute):
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"""Mute (true) or unmute (false) media player."""
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if mute:
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self._nad_receiver.main_mute('=', 'On')
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else:
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self._nad_receiver.main_mute('=', 'Off')
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def select_source(self, source):
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"""Select input source."""
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self._nad_receiver.main_source('=', self._reverse_mapping.get(source))
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@property
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def source(self):
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"""Name of the current input source."""
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return self._source
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@property
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def source_list(self):
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"""List of available input sources."""
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return sorted(list(self._reverse_mapping.keys()))
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def update(self):
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"""Retrieve latest state."""
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if self._nad_receiver.main_power('?') == 'Off':
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self._state = STATE_OFF
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else:
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self._state = STATE_ON
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if self._nad_receiver.main_mute('?') == 'Off':
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self._mute = False
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else:
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self._mute = True
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self._volume = self.calc_volume(self._nad_receiver.main_volume('?'))
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self._source = self._source_dict.get(
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self._nad_receiver.main_source('?'))
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def calc_volume(self, decibel):
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"""
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Calculate the volume given the decibel.
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Return the volume (0..1).
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"""
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return abs(self._min_volume - decibel) / abs(
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self._min_volume - self._max_volume)
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def calc_db(self, volume):
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"""
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Calculate the decibel given the volume.
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Return the dB.
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"""
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return self._min_volume + round(
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abs(self._min_volume - self._max_volume) * volume)
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class NADtcp(MediaPlayerDevice):
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"""Representation of a NAD Digital amplifier."""
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def __init__(self, name, nad_device, min_volume, max_volume, volume_step):
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"""Initialize the amplifier."""
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self._name = name
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self._nad_receiver = nad_device
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self._min_vol = (min_volume + 90) * 2 # from dB to nad vol (0-200)
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self._max_vol = (max_volume + 90) * 2 # from dB to nad vol (0-200)
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self._volume_step = volume_step
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self._state = None
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self._mute = None
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self._nad_volume = None
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self._volume = None
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self._source = None
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self._source_list = self._nad_receiver.available_sources()
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@property
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def name(self):
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"""Return the name of the device."""
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return self._name
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@property
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def state(self):
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"""Return the state of the device."""
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return self._state
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@property
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def volume_level(self):
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"""Volume level of the media player (0..1)."""
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return self._volume
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@property
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def is_volume_muted(self):
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"""Boolean if volume is currently muted."""
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return self._mute
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@property
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def supported_features(self):
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"""Flag media player features that are supported."""
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return SUPPORT_NAD
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def turn_off(self):
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"""Turn the media player off."""
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self._nad_receiver.power_off()
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def turn_on(self):
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"""Turn the media player on."""
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self._nad_receiver.power_on()
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def volume_up(self):
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"""Step volume up in the configured increments."""
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self._nad_receiver.set_volume(self._nad_volume + 2 * self._volume_step)
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def volume_down(self):
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"""Step volume down in the configured increments."""
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self._nad_receiver.set_volume(self._nad_volume - 2 * self._volume_step)
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def set_volume_level(self, volume):
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"""Set volume level, range 0..1."""
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nad_volume_to_set = \
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int(round(volume * (self._max_vol - self._min_vol) +
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self._min_vol))
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self._nad_receiver.set_volume(nad_volume_to_set)
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def mute_volume(self, mute):
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"""Mute (true) or unmute (false) media player."""
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if mute:
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self._nad_receiver.mute()
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else:
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self._nad_receiver.unmute()
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def select_source(self, source):
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"""Select input source."""
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self._nad_receiver.select_source(source)
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@property
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def source(self):
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"""Name of the current input source."""
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return self._source
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@property
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def source_list(self):
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"""List of available input sources."""
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return self._nad_receiver.available_sources()
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def update(self):
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"""Get the latest details from the device."""
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try:
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nad_status = self._nad_receiver.status()
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except OSError:
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return
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if nad_status is None:
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return
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# Update on/off state
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if nad_status['power']:
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self._state = STATE_ON
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else:
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self._state = STATE_OFF
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# Update current volume
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self._volume = self.nad_vol_to_internal_vol(nad_status['volume'])
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self._nad_volume = nad_status['volume']
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# Update muted state
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self._mute = nad_status['muted']
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# Update current source
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self._source = nad_status['source']
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def nad_vol_to_internal_vol(self, nad_volume):
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"""Convert nad volume range (0-200) to internal volume range.
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Takes into account configured min and max volume.
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"""
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if nad_volume < self._min_vol:
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volume_internal = 0.0
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elif nad_volume > self._max_vol:
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volume_internal = 1.0
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else:
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volume_internal = (nad_volume - self._min_vol) / \
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(self._max_vol - self._min_vol)
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return volume_internal
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