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| 1 | +# -*- coding: utf-8 -*- |
| 2 | + |
| 3 | +import logging |
| 4 | + |
| 5 | +from twisted.internet import task, reactor |
| 6 | +from twisted.internet.protocol import ClientFactory |
| 7 | +from twisted.protocols.basic import LineOnlyReceiver |
| 8 | + |
| 9 | +from config import GUI |
| 10 | +from denon.dn500av import DN500AVMessages, DN500AVFormat |
| 11 | + |
| 12 | +if GUI: |
| 13 | + from kivy import Logger |
| 14 | + |
| 15 | + logger = Logger |
| 16 | + |
| 17 | + |
| 18 | +# TODO: Implement Serial ? |
| 19 | +# See: https://twistedmatrix.com/documents/15.4.0/api/twisted.internet.serialport.SerialPort.html |
| 20 | + |
| 21 | + |
| 22 | +class DenonProtocol(LineOnlyReceiver): |
| 23 | + # From DN-500 manual (DN-500AVEM_ENG_CD-ROM_v00.pdf) page 91 (97 in PDF form) |
| 24 | + MAX_LENGTH = 135 |
| 25 | + DELAY = 0.04 # in seconds. The documentation requires 200 ms. 40 ms seems safe. |
| 26 | + delimiter = b'\r' |
| 27 | + ongoing_calls = -1 # Delay handling. FIXME: should timeout after 200 ms. |
| 28 | + |
| 29 | + logger = None |
| 30 | + |
| 31 | + def sendLine(self, line): |
| 32 | + if b'?' in line: |
| 33 | + # A request is made. We need to delay the next calls |
| 34 | + self.ongoing_calls += 1 |
| 35 | + self.logger.debug("Ongoing calls for delay: %s", self.ongoing_calls) |
| 36 | + self.logger.debug("Will send line: %s", line) |
| 37 | + return task.deferLater(reactor, delay=self.DELAY * self.ongoing_calls, callable=super().sendLine, line=line) |
| 38 | + |
| 39 | + def lineReceived(self, line): |
| 40 | + if self.ongoing_calls: |
| 41 | + # We received a reply |
| 42 | + self.ongoing_calls -= 1 |
| 43 | + self.logger.debug("Ongoing calls for delay: %s", self.ongoing_calls) |
| 44 | + receiver = DN500AVMessages(logger=self.logger) |
| 45 | + receiver.parse_response(line) |
| 46 | + self.logger.info("Received line: %s", receiver.response) |
| 47 | + if self.factory.gui: |
| 48 | + self.factory.app.print_message(receiver.response) |
| 49 | + # FIXME: abstract |
| 50 | + # MUTE |
| 51 | + if receiver.command_code == 'MU': |
| 52 | + state = False |
| 53 | + if receiver.parameter_code == 'ON': |
| 54 | + state = True |
| 55 | + self.factory.app.set_mute_button(state) |
| 56 | + |
| 57 | + # VOLUME |
| 58 | + if receiver.command_code == 'MV': |
| 59 | + if receiver.subcommand_code is None: |
| 60 | + self.factory.app.set_volume(receiver.parameter_label) |
| 61 | + |
| 62 | + # POWER |
| 63 | + if receiver.command_code == 'PW': |
| 64 | + state = True |
| 65 | + if receiver.parameter_code == 'STANDBY': |
| 66 | + state = False |
| 67 | + self.factory.app.set_power_button(state) |
| 68 | + |
| 69 | + # SOURCE |
| 70 | + if receiver.command_code == 'SI': |
| 71 | + source = receiver.parameter_code |
| 72 | + self.factory.app.set_source(source) |
| 73 | + |
| 74 | + def connectionMade(self): |
| 75 | + if self.factory.gui: |
| 76 | + self.factory.app.on_connection(self) |
| 77 | + |
| 78 | + def get_power(self): |
| 79 | + self.sendLine('PW?'.encode('ASCII')) |
| 80 | + |
| 81 | + def set_power(self, state): |
| 82 | + self.logger.debug("Entering power callback") |
| 83 | + if state: |
| 84 | + self.sendLine('PWON'.encode('ASCII')) |
| 85 | + else: |
| 86 | + self.sendLine('PWSTANDBY'.encode('ASCII')) |
| 87 | + |
| 88 | + def get_volume(self): |
| 89 | + self.sendLine('MV?'.encode('ASCII')) |
| 90 | + |
| 91 | + def set_volume(self, value): |
| 92 | + rawvalue = DN500AVFormat().mv_reverse_params.get(value) |
| 93 | + if rawvalue is None: |
| 94 | + self.logger.warning("Set volume value %s is invalid.", value) |
| 95 | + else: |
| 96 | + message = 'MV' + rawvalue |
| 97 | + self.sendLine(message.encode('ASCII')) |
| 98 | + |
| 99 | + def get_mute(self): |
| 100 | + self.sendLine('MU?'.encode('ASCII')) |
| 101 | + |
| 102 | + def set_mute(self, state): |
| 103 | + self.logger.debug("Entering mute callback") |
| 104 | + if state: |
| 105 | + self.sendLine('MUON'.encode('ASCII')) |
| 106 | + else: |
| 107 | + self.sendLine('MUOFF'.encode('ASCII')) |
| 108 | + |
| 109 | + def get_source(self): |
| 110 | + self.sendLine('SI?'.encode('ASCII')) |
| 111 | + |
| 112 | + def set_source(self, source): |
| 113 | + message = 'SI' + source |
| 114 | + self.sendLine(message.encode('ASCII')) |
| 115 | + |
| 116 | + |
| 117 | +class DenonClientFactory(ClientFactory): |
| 118 | + protocol = DenonProtocol |
| 119 | + |
| 120 | + def __init__(self): |
| 121 | + self.gui = False |
| 122 | + self.protocol.logger = logging.getLogger(__name__) |
| 123 | + |
| 124 | + |
| 125 | +class DenonClientGUIFactory(ClientFactory): |
| 126 | + protocol = DenonProtocol |
| 127 | + |
| 128 | + def __init__(self, app): |
| 129 | + self.gui = True |
| 130 | + self.app = app |
| 131 | + self.protocol.logger = Logger |
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