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fhem-mirror/fhem/FHEM/30_MilightBridge.pm
2014-12-22 22:41:48 +00:00

393 lines
12 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 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->{NotifyFn} = "MilightBridge_Notify";
$hash->{AttrFn} = "MilightBridge_Attr";
$hash->{AttrList} = "port sendInterval disable:0,1 ".$readingFnAttributes;
return undef;
}
#####################################
# Define bridge device
sub MilightBridge_Define($$)
{
my ($hash, $def) = @_;
my @args = split("[ \t][ \t]*", $def);
return "Usage: define <name> MilightBridge <host/ip>" if(@args < 3);
my ($name, $type, $host) = @args;
$hash->{Clients} = ":MilightDevice:";
my %matchList = ( "1:MilightDevice" => ".*" );
$hash->{MatchList} = \%matchList;
# Parameters
$hash->{HOST} = $host;
# Set Port (Default 8899, old bridge (V2) uses 50000
$attr{$name}{"port"} = "8899" if (!defined($attr{$name}{"port"}));
$hash->{PORT} = $attr{$name}{"port"};
# Create local socket
my $sock = IO::Socket::INET-> new (
PeerPort => 48899,
Blocking => 0,
Proto => 'udp',
Broadcast => 1) or return "can't bind: $@";
my $select = IO::Select->new($sock);
$hash->{SOCKET} = $sock;
$hash->{SELECT} = $select;
# Note: Milight API specifies 100ms bridge delay for sending commands
# Define sendInterval
$attr{$name}{"sendInterval"} = 100 if (!defined($attr{$name}{"sendInterval"}));
$hash->{INTERVAL} = $attr{$name}{"sendInterval"};
# Create command queue to hold commands
my @cmdQueue = ();
$hash->{cmdQueue} = \@cmdQueue;
$hash->{cmdQueueLock} = 0;
$hash->{cmdLastSent} = gettimeofday();
# Set Attributes
$attr{$name}{"event-on-change-reading"} = "state" if (!defined($attr{$name}{"event-on-change-reading"}));
# Set state
$hash->{SENDFAIL} = 0;
MilightBridge_State($hash);
return undef;
}
#####################################
# Undefine Bridge device
sub MilightBridge_Undefine($$)
{
my ($hash,$arg) = @_;
RemoveInternalTimer($hash);
return undef;
}
#####################################
# Manage attribute changes
sub MilightBridge_Attr($$$$) {
my ($command,$name,$attribute,$value) = @_;
my $hash = $defs{$name};
Log3 ($hash, 5, "$hash->{NAME}_Attr: Attr $attribute; Value $value");
# Handle "sendInterval" attribute which defaults to 100(ms)
if ($attribute eq "sendInterval")
{
if (($value !~ /^\d*$/) || ($value < 1))
{
$attr{$name}{"sendInterval"} = 100;
$hash->{INTERVAL} = $attr{$name}{"sendInterval"};
return "sendInterval is required in ms (default: 100)";
}
else
{
$hash->{INTERVAL} = $attr{$name}{"sendInterval"};
}
}
elsif ($attribute eq "port")
{
if (($value !~ /^\d*$/) || ($value < 1))
{
$attr{$name}{"port"} = 100;
$hash->{PORT} = $attr{$name}{"port"};
return "port is required as numeric (default: 8899)";
}
else
{
$hash->{PORT} = $attr{$name}{"port"};
}
}
# Handle "disable" attribute by opening/closing connection to device
elsif ($attribute eq "disable")
{
# Disable on 1, enable on anything else.
if ($value eq "1")
{
$hash->{STATE} = "disabled";
}
else
{
$hash->{STATE} = "ok";
}
}
return undef;
}
#####################################
# Update slot information when a global notify event is fired
sub MilightBridge_Notify($$)
{
my ($hash,$dev) = @_;
Log3 ($hash, 5, "$hash->{NAME}_Notify: Triggered by $dev->{NAME}; @{$dev->{CHANGED}}");
return if($dev->{NAME} ne "global");
if(grep(m/^(INITIALIZED|REREADCFG|DEFINED.*|MODIFIED.*|DELETED.*)$/, @{$dev->{CHANGED}}))
{
MilightBridge_SlotUpdate($hash);
}
return undef;
}
#####################################
# Update readings to show status of bridge
sub MilightBridge_State(@)
{
# Update Bridge state
my ($hash) = @_;
Log3 ( $hash, 5, "$hash->{NAME}_State: Checking Bridge Status");
# Do a ping check to see if bridge is reachable
# check via ping
my $pingstatus = "ok";
my $p = Net::Ping->new('udp');
if( $p->ping($hash->{HOST}, 2)) {
$pingstatus = "ok";
} else {
$pingstatus = "unreachable";
}
$p->close();
# And update state
readingsSingleUpdate($hash, "state", $pingstatus, 1);
# Update send fail flag
readingsSingleUpdate( $hash, "sendFail", $hash->{SENDFAIL}, 1 );
# Check state every 10 seconds
InternalTimer(gettimeofday() + 10, "MilightBridge_State", $hash, 0);
return undef;
}
#####################################
# Update readings to show which slots have devices defined
sub MilightBridge_SlotUpdate(@)
{
# Update readings to show what is connected to which slot
my ($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)
{
# 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 $portaddr = sockaddr_in($hash->{PORT}, inet_aton($hash->{HOST}));
if (!send($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
}
}
}
}
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
foreach my $args (keys %intAt)
{
if (($intAt{$args}{ARG} eq $hash) && ($intAt{$args}{FN} eq 'MilightBridge_CmdQueue_Send'))
{
Log3 ($hash, 5, "$hash->{NAME}_CmdQueue_Send: Remove timer at: ".$intAt{$args}{TRIGGERTIME});
delete($intAt{$args});
}
}
InternalTimer(gettimeofday()+($hash->{INTERVAL}/1000), "MilightBridge_CmdQueue_Send", $hash, 0);
}
return undef;
}
1;
=pod
=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&gt;</code></p>
<p>Specifies the MilightBridge device.<br/>
&lt;host/ip&gt; is the hostname or IP address of the Bridge.</p>
</ul>
<a name="MilightBridge_readings"></a>
<p><b>Readings</b></p>
<ul>
<li>
<b>state</b><br/>
[ok|unreachable]: Set depending on result of a UDP ping sent every 10 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>port</b><br/>
Default: 8899. Older bridges (V2) used port 50000 so change this value if you have an old bridge.
</li>
</ul>
</ul>
=end html
=cut