mirror of https://github.com/home-assistant/core
282 lines
9.3 KiB
Python
282 lines
9.3 KiB
Python
"""Support for interfacing with NAD receivers through RS-232."""
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from __future__ import annotations
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from nad_receiver import NADReceiver, NADReceiverTCP, NADReceiverTelnet
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import voluptuous as vol
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from homeassistant.components.media_player import (
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PLATFORM_SCHEMA,
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MediaPlayerEntity,
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MediaPlayerEntityFeature,
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MediaPlayerState,
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)
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from homeassistant.const import CONF_HOST, CONF_NAME, CONF_PORT, CONF_TYPE
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from homeassistant.core import HomeAssistant
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import homeassistant.helpers.config_validation as cv
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from homeassistant.helpers.entity_platform import AddEntitiesCallback
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from homeassistant.helpers.typing import ConfigType, DiscoveryInfoType
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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 = (
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MediaPlayerEntityFeature.VOLUME_SET
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| MediaPlayerEntityFeature.VOLUME_MUTE
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| MediaPlayerEntityFeature.TURN_ON
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| MediaPlayerEntityFeature.TURN_OFF
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| MediaPlayerEntityFeature.VOLUME_STEP
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| MediaPlayerEntityFeature.SELECT_SOURCE
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)
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CONF_SERIAL_PORT = "serial_port" # for NADReceiver
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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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# Max value based on a C658 with an MDC HDM-2 card installed
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SOURCE_DICT_SCHEMA = vol.Schema({vol.Range(min=1, max=12): cv.string})
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PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend(
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{
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vol.Optional(CONF_TYPE, default=DEFAULT_TYPE): vol.In(
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["RS232", "Telnet", "TCP"]
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),
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vol.Optional(CONF_SERIAL_PORT, default=DEFAULT_SERIAL_PORT): 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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)
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def setup_platform(
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hass: HomeAssistant,
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config: ConfigType,
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add_entities: AddEntitiesCallback,
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discovery_info: DiscoveryInfoType | None = None,
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) -> None:
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"""Set up the NAD platform."""
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if config.get(CONF_TYPE) in ("RS232", "Telnet"):
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add_entities(
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[NAD(config)],
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True,
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)
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else:
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add_entities(
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[NADtcp(config)],
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True,
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)
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class NAD(MediaPlayerEntity):
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"""Representation of a NAD Receiver."""
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_attr_icon = "mdi:speaker-multiple"
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_attr_supported_features = SUPPORT_NAD
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def __init__(self, config):
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"""Initialize the NAD Receiver device."""
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self.config = config
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self._instantiate_nad_receiver()
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self._attr_name = self.config[CONF_NAME]
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self._min_volume = config[CONF_MIN_VOLUME]
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self._max_volume = config[CONF_MAX_VOLUME]
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self._source_dict = config[CONF_SOURCE_DICT]
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self._reverse_mapping = {value: key for key, value in self._source_dict.items()}
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def _instantiate_nad_receiver(self) -> NADReceiver:
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if self.config[CONF_TYPE] == "RS232":
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self._nad_receiver = NADReceiver(self.config[CONF_SERIAL_PORT])
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else:
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host = self.config.get(CONF_HOST)
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port = self.config[CONF_PORT]
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self._nad_receiver = NADReceiverTelnet(host, port)
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def turn_off(self) -> None:
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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) -> None:
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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) -> None:
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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) -> None:
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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: float) -> None:
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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: bool) -> None:
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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: str) -> None:
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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_list(self):
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"""List of available input sources."""
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return sorted(self._reverse_mapping)
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@property
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def available(self) -> bool:
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"""Return if device is available."""
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return self.state is not None
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def update(self) -> None:
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"""Retrieve latest state."""
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power_state = self._nad_receiver.main_power("?")
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if not power_state:
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self._attr_state = None
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return
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self._attr_state = (
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MediaPlayerState.ON
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if self._nad_receiver.main_power("?") == "On"
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else MediaPlayerState.OFF
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)
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if self.state == MediaPlayerState.ON:
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self._attr_is_volume_muted = self._nad_receiver.main_mute("?") == "On"
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volume = self._nad_receiver.main_volume("?")
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# Some receivers cannot report the volume, e.g. C 356BEE,
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# instead they only support stepping the volume up or down
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self._attr_volume_level = (
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self.calc_volume(volume) if volume is not None else None
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)
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self._attr_source = self._source_dict.get(
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self._nad_receiver.main_source("?")
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)
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def calc_volume(self, decibel):
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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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)
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def calc_db(self, volume):
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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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)
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class NADtcp(MediaPlayerEntity):
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"""Representation of a NAD Digital amplifier."""
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_attr_supported_features = SUPPORT_NAD
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def __init__(self, config):
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"""Initialize the amplifier."""
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self._attr_name = config[CONF_NAME]
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self._nad_receiver = NADReceiverTCP(config.get(CONF_HOST))
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self._min_vol = (config[CONF_MIN_VOLUME] + 90) * 2 # from dB to nad vol (0-200)
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self._max_vol = (config[CONF_MAX_VOLUME] + 90) * 2 # from dB to nad vol (0-200)
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self._volume_step = config[CONF_VOLUME_STEP]
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self._nad_volume = None
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self._source_list = self._nad_receiver.available_sources()
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def turn_off(self) -> None:
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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) -> None:
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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) -> None:
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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) -> None:
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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: float) -> None:
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"""Set volume level, range 0..1."""
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nad_volume_to_set = int(
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round(volume * (self._max_vol - self._min_vol) + self._min_vol)
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)
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self._nad_receiver.set_volume(nad_volume_to_set)
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def mute_volume(self, mute: bool) -> None:
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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: str) -> None:
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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_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) -> None:
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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._attr_state = MediaPlayerState.ON
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else:
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self._attr_state = MediaPlayerState.OFF
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# Update current volume
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self._attr_volume_level = 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._attr_is_volume_muted = nad_status["muted"]
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# Update current source
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self._attr_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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)
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return volume_internal
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