fhem-mirror/FHEM/30_MilightBridge.pm
2018-02-04 18:35:23 +00:00

488 lines
15 KiB
Perl

# $Id$
##############################################
#
# 30_MilightBridge.pm (Use with 31_MilightDevice.pm)
# FHEM module for Milight Wifi bridges which control Milight lightbulbs.
#
# Author: Matthew Wire (mattwire)
#
# This file is part of fhem.
#
# Fhem is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 2 of the License, or
# (at your option) any later version.
#
# Fhem is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with fhem. If not, see <http://www.gnu.org/licenses/>.
#
##############################################################################
package main;
use strict;
use warnings;
use Blocking;
use IO::Handle;
use IO::Socket;
use IO::Select;
use Time::HiRes;
use Net::Ping;
sub MilightBridge_Initialize($)
{
my ($hash) = @_;
# Provider
# $hash->{ReadFn} = "MilightBridge_Read";
$hash->{WriteFn} = "MilightBridge_Write";
#Consumer
$hash->{DefFn} = "MilightBridge_Define";
$hash->{UndefFn} = "MilightBridge_Undefine";
$hash->{NOTIFYDEV} = "global";
$hash->{NotifyFn} = "MilightBridge_Notify";
$hash->{AttrFn} = "MilightBridge_Attr";
$hash->{AttrList} = "port protocol:udp,tcp sendInterval disable:0,1 tcpPing:1 checkInterval ".$readingFnAttributes;
return undef;
}
#####################################
# Define bridge device
sub MilightBridge_Define($$)
{
my ($hash, $def) = @_;
my @args = split("[ \t][ \t]*", $def);
return "Usage: define <name> MilightBridge <host/ip:port>" if(@args < 3);
my ($name, $type, $hostandport) = @args;
$hash->{Clients} = ":MilightDevice:";
my %matchList = ( "1:MilightDevice" => ".*" );
$hash->{MatchList} = \%matchList;
my ($host, $port) = split(":", $hostandport);
# Parameters
$hash->{HOST} = $host;
# Set Port (Default 8899, old bridge (V2) uses 50000
$port = "8899" if (!defined($port));
$hash->{PORT} = $port;
$attr{$name}{"protocol"} = "udp" if (!defined($attr{$name}{"protocol"}));
# Create local socket
my $sock = IO::Socket::INET-> new (
PeerPort => 48899,
Blocking => 0,
Proto => $attr{$name}{"protocol"},
Broadcast => 1) or return "can't bind: $@";
my $select = IO::Select->new($sock);
$hash->{SOCKET} = $sock;
$hash->{SELECT} = $select;
# Note: Milight API specifies 100ms bridge delay for sending commands
# Define sendInterval
$attr{$name}{"sendInterval"} = 100 if (!defined($attr{$name}{"sendInterval"}));
$hash->{INTERVAL} = $attr{$name}{"sendInterval"};
# Create command queue to hold commands
my @cmdQueue = ();
$hash->{cmdQueue} = \@cmdQueue;
$hash->{cmdQueueLock} = 0;
$hash->{cmdLastSent} = gettimeofday();
# Set Attributes
$attr{$name}{"event-on-change-reading"} = "state" if (!defined($attr{$name}{"event-on-change-reading"}));
$attr{$name}{"checkInterval"} = 10 if (!defined($attr{$name}{"checkInterval"}));
delete $hash->{helper}{RUNNING_PID};
readingsSingleUpdate($hash, "state", "Initialized", 1);
# Set state
$hash->{SENDFAIL} = 0;
# Get initial bridge state
MilightBridge_SetNextTimer($hash);
return undef;
}
#####################################
# Undefine Bridge device
sub MilightBridge_Undefine($$)
{
my ($hash,$arg) = @_;
RemoveInternalTimer($hash);
BlockingKill($hash->{helper}{RUNNING_PID}) if(defined($hash->{helper}{RUNNING_PID}));
return undef;
}
#####################################
# Manage attribute changes
sub MilightBridge_Attr($$$$) {
my ($command,$name,$attribute,$value) = @_;
my $hash = $defs{$name};
$value = "" if(!defined($value));
Log3 ($hash, 5, "$hash->{NAME}_Attr: Attr $attribute; Value $value");
# Handle "sendInterval" attribute which defaults to 100(ms)
if ($attribute eq "sendInterval")
{
if (($value !~ /^\d*$/) || ($value < 1))
{
$attr{$name}{"sendInterval"} = 100;
$hash->{INTERVAL} = $attr{$name}{"sendInterval"};
return "sendInterval is required in ms (default: 100)";
}
else
{
$hash->{INTERVAL} = $attr{$name}{"sendInterval"};
}
}
if ($attribute eq "checkInterval")
{
if (($value !~ /^\d*$/) || ($value < 0))
{
$attr{$name}{"checkInterval"} = 10;
return "checkInterval is required in s (default: 10, min: 0)";
}
readingsSingleUpdate($hash, "state", "Initialized", 1);
MilightBridge_SetNextTimer($hash);
}
elsif ($attribute eq "protocol")
{
if (($value eq "tcp" || $value eq "udp"))
{
my $protocolchanged = (defined($attr{$name}{"protocol"}) && $attr{$name}{"protocol"} ne $value);
$attr{$name}{"protocol"} = $value;
return "You need to restart fhem or modify to enable new protocol." if($protocolchanged);
}
else
{
return "protocol must be one of 'tcp|udp'";
}
}
# Handle "disable" attribute by opening/closing connection to device
elsif ($attribute eq "disable")
{
# Disable on 1, enable on anything else.
if ($value eq "1")
{
readingsSingleUpdate($hash, "state", "disabled", 1);
}
else
{
readingsSingleUpdate($hash, "state", "Initialized", 1);
}
}
return undef;
}
#####################################
# Update slot information when a global notify event is fired
sub MilightBridge_Notify($$)
{
my ($hash,$dev) = @_;
if(grep(m/^(INITIALIZED|REREADCFG|DEFINED.*|MODIFIED.*|DELETED.*)$/, @{$dev->{CHANGED}}))
{
MilightBridge_SlotUpdate($hash);
}
return undef;
}
#####################################
# Set next timer for ping check
sub MilightBridge_SetNextTimer($)
{
my ($hash) = @_;
# Check state every X seconds
RemoveInternalTimer($hash);
my $interval=AttrVal($hash->{NAME}, "checkInterval", "10");
if ($interval > 0) {
InternalTimer(gettimeofday() + $interval, "MilightBridge_DoPingStart", $hash, 0);
}
}
#####################################
# Prepare and start the blocking call in new thread
sub MilightBridge_DoPingStart($)
{
my ($hash) = @_;
return undef if (IsDisabled($hash->{NAME}));
my $timeout = 2;
my $mode = 'udp';
$mode = 'tcp' if(defined($attr{$hash->{NAME}}{tcpPing}));
my $arg = $hash->{NAME}."|".$hash->{HOST}."|".$mode."|".$timeout;
my $blockingFn = "MilightBridge_DoPing";
my $finishFn = "MilightBridge_DoPingDone";
my $abortFn = "MilightBridge_DoPingAbort";
if (!(exists($hash->{helper}{RUNNING_PID}))) {
$hash->{helper}{RUNNING_PID} =
BlockingCall($blockingFn, $arg, $finishFn, $timeout, $abortFn, $hash);
} else {
Log3 $hash, 3, "$hash->{NAME} Blocking Call running no new started";
MilightBridge_SetNextTimer($hash);
}
}
#####################################
# BlockingCall DoPing in separate thread
sub MilightBridge_DoPing(@)
{
my ($string) = @_;
my ($name, $host, $mode, $timeout) = split("\\|", $string);
Log3 ($name, 5, $name."_DoPing: Executing ping");
# check via ping
my $p;
$p = Net::Ping->new($mode);
my $result = $p->ping($host, $timeout);
$p->close();
$result="" if !(defined($result));
return "$name|$result";
}
#####################################
# Ping thread completed
sub MilightBridge_DoPingDone($)
{
my ($string) = @_;
my ($name, $result) = split("\\|", $string);
my $hash = $defs{$name};
my $status = "ok";
$status = "unreachable" if !($result);
# Update readings
readingsBeginUpdate($hash);
readingsBulkUpdate($hash, "state", $status);
readingsBulkUpdate( $hash, "sendFail", $hash->{SENDFAIL});
readingsEndUpdate($hash, 1);
delete($hash->{helper}{RUNNING_PID});
MilightBridge_SetNextTimer($hash);
}
#####################################
# Ping thread timeout
sub MilightBridge_DoPingAbort($)
{
my ($hash) = @_;
delete($hash->{helper}{RUNNING_PID});
Log3 $hash->{NAME}, 3, "BlockingCall for ".$hash->{NAME}." was aborted";
MilightBridge_SetNextTimer($hash);
}
#####################################
# Update readings to show which slots have devices defined
sub MilightBridge_SlotUpdate(@)
{
# Update readings to show what is connected to which slot
my ($hash) = @_;
Log3 ( $hash, 5, "$hash->{NAME}_State: Updating Slot readings");
readingsBeginUpdate($hash);
readingsBulkUpdate($hash, "slot0", (defined($hash->{0}->{NAME}) ? $hash->{0}->{NAME} : ""));
readingsBulkUpdate($hash, "slot1", (defined($hash->{1}->{NAME}) ? $hash->{1}->{NAME} : ""));
readingsBulkUpdate($hash, "slot2", (defined($hash->{2}->{NAME}) ? $hash->{2}->{NAME} : ""));
readingsBulkUpdate($hash, "slot3", (defined($hash->{3}->{NAME}) ? $hash->{3}->{NAME} : ""));
readingsBulkUpdate($hash, "slot4", (defined($hash->{4}->{NAME}) ? $hash->{4}->{NAME} : ""));
readingsBulkUpdate($hash, "slot5", (defined($hash->{5}->{NAME}) ? $hash->{5}->{NAME} : ""));
readingsBulkUpdate($hash, "slot6", (defined($hash->{6}->{NAME}) ? $hash->{6}->{NAME} : ""));
readingsBulkUpdate($hash, "slot7", (defined($hash->{7}->{NAME}) ? $hash->{7}->{NAME} : ""));
readingsBulkUpdate($hash, "slot8", (defined($hash->{8}->{NAME}) ? $hash->{8}->{NAME} : ""));
readingsEndUpdate($hash, 1);
return undef;
}
#####################################
# Device write function. Receives a command and triggers the send queue
sub MilightBridge_Write(@)
{
# Client sent a new command
my ($hash, $cmd) = @_;
Log3 ($hash, 3, "$hash->{NAME}_Write: Command not defined") if (!defined($cmd));
my $hexStr = unpack("H*", $cmd || '');
Log3 ($hash, 4, "$hash->{NAME}_Write: Command: $hexStr");
# Add command to queue
push @{$hash->{cmdQueue}}, $cmd;
MilightBridge_CmdQueue_Send($hash);
}
#####################################
# Send a queued command to the bridge hardware
sub MilightBridge_CmdQueue_Send(@)
{
my ($hash) = @_;
# Check that queue is not locked. If it is we should just return because another instance of this function has locked it.
if ($hash->{cmdQueueLock} != 0)
{
Log3 ($hash, 5, "$hash->{NAME}_cmdQueue_Send: Send Queue Locked: cmdQueueLock = $hash->{cmdQueueLock}. Return.");
return undef;
}
# Check if we are called again before send interval has elapsed
my $now = gettimeofday();
if ((($hash->{cmdLastSent} + ($hash->{INTERVAL} / 1000)) < $now) && $init_done)
{
# Lock cmdQueue
$hash->{cmdQueueLock} = 1;
# Extract current command
my $command = @{$hash->{cmdQueue}}[0];
# Check if we have any commands in queue
if (!defined($command))
{
Log3 ($hash, 5, "$hash->{NAME}_cmdQueue_Send: No commands in queue");
}
else
{
# Send the command
my $hexStr = unpack("H*", $command || '');
Log3 ($hash, 5, "$hash->{NAME} send: $hexStr@".gettimeofday()."; Queue Length: ".@{$hash->{cmdQueue}});
# Check bridge is not disabled, and send command
if (!IsDisabled($hash->{NAME}))
{
my $hostip = inet_aton($hash->{HOST});
if (!defined($hostip) || $hostip eq '')
{
Log3 ($hash, 3, "$hash->{NAME}: Could not resolve hostname " . $hash->{HOST});
return undef;
}
# sockaddr_in crashes if ip address is undef
my $portaddr = sockaddr_in($hash->{PORT}, $hostip);
if (!send($hash->{SOCKET}, $command, 0, $portaddr))
{
# Send failed
Log3 ($hash, 3, "$hash->{NAME} Send FAILED! ".gettimeofday().":$hexStr. Queue Length: ".@{$hash->{cmdQueue}});
$hash->{SENDFAIL} = 1;
}
else
{
# Send successful
$hash->{cmdLastSent} = gettimeofday(); # Update time last sent
shift @{$hash->{cmdQueue}}; # transmission complete, remove command from queue
}
}
}
}
elsif (!$init_done)
{
# fhem not initialized, wait for init
Log3 ($hash, 3, "$hash->{NAME}_cmdQueue_Send: init not done, delay sending from queue");
}
else
{
# We were called again before send interval elapsed
Log3 ($hash, 5, "$hash->{NAME}_cmdQueue_Send: Waiting for send interval. cmdLastSent: $hash->{cmdLastSent}. Now: $now");
}
# Unlock cmdQueue
$hash->{cmdQueueLock} = 0;
# Set next cycle if there are commands in the queue
if (@{$hash->{cmdQueue}} > 0)
{
# INTERVAL is in msec, need to add seconds to gettimeofday (eg 100/1000 = 0.1 seconds)
#Log3 ($hash, 5, "$hash->{NAME}_cmdQueue_Send: cmdLastSent: $hash->{cmdLastSent}; Next: ".(gettimeofday()+($hash->{INTERVAL}/1000)));
# Remove any existing timers and trigger a new one
RemoveInternalTimer($hash, 'MilightBridge_CmdQueue_Send');
InternalTimer(gettimeofday()+($hash->{INTERVAL}/1000), "MilightBridge_CmdQueue_Send", $hash, 0);
}
return undef;
}
1;
=pod
=item device
=item summary Interface to a Milight Bridge connected to the network using a Wifi connection
=begin html
<a name="MilightBridge"></a>
<h3>MilightBridge</h3>
<ul>
<p>This module is the interface to a Milight Bridge which is connected to the network using a Wifi connection. It uses a UDP protocal with no acknowledgement so there is no guarantee that your command was received.</p>
<p>The Milight system is sold under various brands around the world including "LimitlessLED, EasyBulb, AppLamp"</p>
<p>The API documentation is available here: <a href="http://www.limitlessled.com/dev/">http://www.limitlessled.com/dev/</a></p>
<a name="MilightBridge_define"></a>
<p><b>Define</b></p>
<ul>
<p><code>define &lt;name&gt; MilightBridge &lt;host/ip:port&gt;</code></p>
<p>Specifies the MilightBridge device.<br/>
&lt;host/ip&gt; is the hostname or IP address of the Bridge with optional port (defaults to 8899 if not defined, use 50000 for V1,V2 bridges)</p>
</ul>
<a name="MilightBridge_readings"></a>
<p><b>Readings</b></p>
<ul>
<li>
<b>state</b><br/>
[Initialized|ok|unreachable]: Shows reachable status of bridge using "ping" check every 10 (checkInterval) seconds.
</li>
<li>
<b>sendFail</b><br/>
0 if everything is OK. 1 if the send function was unable to send the command - this would indicate a problem with your network and/or host/port parameters.
</li>
<li>
<b>slot[0|1|2|3|4|5|6|7|8]</b><br/>
The slotX reading will display the name of the <a href="#MilightDevice">MilightDevice</a> that is defined with this Bridge as it's <a href="#IODev">IODev</a>. It will be blank if no device is defined for that slot.
</li>
</ul>
<a name="MilightBridge_attr"></a>
<p><b>Attributes</b></p>
<ul>
<li>
<b>sendInterval</b><br/>
Default: 100ms. The bridge has a minimum send delay of 100ms between commands.
</li>
<li>
<b>checkInterval</b><br/>
Default: 10s. Time after the bridge connection is re-checked.<br>
If this is set to 0 checking is disabled and state = "Initialized".
</li>
<li>
<b>protocol</b><br/>
Default: udp. Change to tcp if you have enabled tcp mode on your bridge.
</li>
<li>
<b>tcpPing</b><br/>
If this attribute is defined, ping will use TCP instead of UDP.
</li>
</ul>
</ul>
=end html
=cut