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OWVAR.pm: Neues Modul für DS2890, Version 6.0, eingerichtet für asynchrones OWX
git-svn-id: https://svn.fhem.de/fhem/trunk@11131 2b470e98-0d58-463d-a4d8-8e2adae1ed80
This commit is contained in:
pahenning
parent
fc6db34218
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980
fhem/FHEM/21_OWVAR.pm
Normal file
980
fhem/FHEM/21_OWVAR.pm
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@ -0,0 +1,980 @@
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########################################################################################
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#
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# OWVAR.pm
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#
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# FHEM module to commmunicate with 1-Wire variable resistor DS2890
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#
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# Prof. Dr. Peter A. Henning
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#
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# $Id$
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#
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########################################################################################
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#
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# define <name> OWVAR [<model>] <ROM_ID> or <FAM_ID>.<ROM_ID>
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#
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# where <name> may be replaced by any name string
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#
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# <model> is a 1-Wire device type. If omitted AND no FAM_ID given we assume this to be an
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# DS2890 variable resistor
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# <FAM_ID> is a 1-Wire family id, currently allowed values are 2C
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# <ROM_ID> is a 12 character (6 byte) 1-Wire ROM ID
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# without Family ID, e.g. A2D90D000800
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#
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# get <name> id => FAM_ID.ROM_ID.CRC
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# get <name> present => 1 if device present, 0 if not
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# get <name> value => query value
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# get <name> version => OWX version number
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# set <name> value => wiper setting
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#
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# Additional attributes are defined in fhem.cfg
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# attr <name> Name <string>[|<string>] = name for the channel [|name used in state reading]
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# attr <name> Unit <string>[|<string>] = unit of measurement for this channel [|unit used in state reading]
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# attr <name> Function <string>|<string> = The first string is an arbitrary functional expression f(V) involving the variable V.
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# V is replaced by the raw potentiometer reading (in the range of [0,100]). The second string must be the inverse
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# function g(U) involving the variable U, such that U can be replaced by the value given in the
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# set argument. Care has to taken that g(U) is in the range [0,100].
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# No check on the validity of these functions is performed,
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# singularities my crash FHEM.
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#
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########################################################################################
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#
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# This programm is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# The GNU General Public License can be found at
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# http://www.gnu.org/copyleft/gpl.html.
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# A copy is found in the textfile GPL.txt and important notices to the license
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# from the author is found in LICENSE.txt distributed with these scripts.
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#
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# This script is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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########################################################################################
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package main;
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use vars qw{%attr %defs %modules $readingFnAttributes $init_done};
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use strict;
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use warnings;
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use Time::HiRes qw( gettimeofday );
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#add FHEM/lib to @INC if it's not allready included. Should rather be in fhem.pl than here though...
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BEGIN {
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if (!grep(/FHEM\/lib$/,@INC)) {
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foreach my $inc (grep(/FHEM$/,@INC)) {
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push @INC,$inc."/lib";
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};
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};
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};
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use ProtoThreads;
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no warnings 'deprecated';
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sub Log3($$$);
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sub AttrVal($$$);
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my $owx_version="6.0";
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my $owg_channel = "";
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my %gets = (
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"id" => "",
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"present" => "",
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"value" => "",
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"version" => ""
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);
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my %sets = (
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"value" => ""
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);
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my %updates = (
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"value" => ""
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);
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########################################################################################
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#
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# The following subroutines are independent of the bus interface
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#
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# Prefix = OWVAR
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#
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########################################################################################
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#
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# OWVAR_Initialize
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#
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# Parameter hash = hash of device addressed
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#
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########################################################################################
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sub OWVAR_Initialize ($) {
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my ($hash) = @_;
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$hash->{DefFn} = "OWVAR_Define";
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$hash->{UndefFn} = "OWVAR_Undef";
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$hash->{GetFn} = "OWVAR_Get";
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$hash->{SetFn} = "OWVAR_Set";
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$hash->{NotifyFn}= "OWVAR_Notify";
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$hash->{InitFn} = "OWVAR_Init";
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$hash->{AttrFn} = "OWVAR_Attr";
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$hash->{AttrList}= "IODev model:DS2890 ".
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"Name Function Unit ".
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$readingFnAttributes;
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#-- make sure OWX is loaded so OWX_CRC is available if running with OWServer
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main::LoadModule("OWX");
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}
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########################################################################################
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#
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# OWVAR_Define - Implements DefFn function
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#
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# Parameter hash = hash of device addressed, def = definition string
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#
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########################################################################################
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sub OWVAR_Define ($$) {
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my ($hash, $def) = @_;
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# define <name> OWVAR [<model>] <id>
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# e.g.: define flow OWVAR 525715020000
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my @a = split("[ \t][ \t]*", $def);
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my ($name,$model,$fam,$id,$crc,$ret);
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#-- default
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$name = $a[0];
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$ret = "";
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#-- check syntax
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return "OWVAR: Wrong syntax, must be define <name> OWVAR [<model>] <id> or OWVAR <fam>.<id> "
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if(int(@a) < 2 || int(@a) > 5);
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#-- different types of definition allowed
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my $a2 = $a[2];
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my $a3 = defined($a[3]) ? $a[3] : "";
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#-- no model, 12 characters
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if( $a2 =~ m/^[0-9|a-f|A-F]{12}$/ ) {
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$model = "DS2890";
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CommandAttr (undef,"$name model DS2890");
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$fam = "10";
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$id = $a[2];
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#-- no model, 2+12 characters
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} elsif( $a2 =~ m/^[0-9|a-f|A-F]{2}\.[0-9|a-f|A-F]{12}$/ ) {
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$fam = substr($a[2],0,2);
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$id = substr($a[2],3);
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if( $fam eq "2C" ){
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$model = "DS2890";
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CommandAttr (undef,"$name model DS2890");
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}else{
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return "OWVAR: Wrong 1-Wire device family $fam";
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}
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#-- model, 12 characters
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} elsif( $a3 =~ m/^[0-9|a-f|A-F]{12}$/ ) {
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$model = $a[2];
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$id = $a[3];
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if( $model eq "DS2890" ){
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$fam = "2C";
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CommandAttr (undef,"$name model DS2890");
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}else{
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return "OWVAR: Wrong 1-Wire device model $model";
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}
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} else {
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return "OWVAR: $a[0] ID $a[2] invalid, specify a 12 or 2.12 digit value";
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}
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#-- determine CRC Code
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$crc = sprintf("%02X",OWX_CRC($fam.".".$id."00"));
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#-- define device internals
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$hash->{OW_ID} = $id;
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$hash->{OW_FAMILY} = $fam;
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$hash->{PRESENT} = 0;
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$hash->{ROM_ID} = "$fam.$id.$crc";
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#-- value globals - always the raw values from/for the device
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$hash->{owg_val} = "";
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#-- Couple to I/O device
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AssignIoPort($hash);
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if( !defined($hash->{IODev}) or !defined($hash->{IODev}->{NAME}) ){
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return "OWVAR: Warning, no 1-Wire I/O device found for $name.";
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} else {
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$hash->{ASYNC} = $hash->{IODev}->{TYPE} eq "OWX_ASYNC" ? 1 : 0; #-- false for now
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}
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$modules{OWVAR}{defptr}{$id} = $hash;
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#--
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readingsSingleUpdate($hash,"state","defined",1);
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Log3 $name, 3, "OWVAR: Device $name defined.";
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$hash->{NOTIFYDEV} = "global";
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if ($init_done) {
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OWVAR_Init($hash);
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}
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return undef;
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}
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#######################################################################################
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#
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# OWVAR_Notify - Implements the Notify function
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#
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# Parameter hash = hash of device addressed
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# a = argument array
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#
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########################################################################################
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sub OWVAR_Notify ($$) {
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my ($hash,$dev) = @_;
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if( grep(m/^(INITIALIZED|REREADCFG)$/, @{$dev->{CHANGED}}) ) {
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OWVAR_Init($hash);
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} elsif( grep(m/^SAVE$/, @{$dev->{CHANGED}}) ) {
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}
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}
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#######################################################################################
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#
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# OWVAR_Init - Implements the Init function
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#
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# Parameter hash = hash of device addressed
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#
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########################################################################################
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sub OWVAR_Init ($) {
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my ($hash)=@_;
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#-- Start timer for updates
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RemoveInternalTimer($hash);
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InternalTimer(gettimeofday()+10, "OWVAR_GetValues", $hash, 0);
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return undef;
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}
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#######################################################################################
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#
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# OWVAR_Attr - Set one attribute value for device
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#
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# Parameter hash = hash of device addressed
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# a = argument array
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#
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########################################################################################
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sub OWVAR_Attr(@) {
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my ($do,$name,$key,$value) = @_;
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my $hash = $defs{$name};
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my $ret;
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if ( $do eq "set") {
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ARGUMENT_HANDLER: {
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#-- interval modified at runtime
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$key eq "IODev" and do {
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AssignIoPort($hash,$value);
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if( defined($hash->{IODev}) ) {
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$hash->{ASYNC} = $hash->{IODev}->{TYPE} eq "OWX_ASYNC" ? 1 : 0;
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if ($init_done) {
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OWVAR_Init($hash);
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}
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}
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last;
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};
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}
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}
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return $ret;
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}
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########################################################################################
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#
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# OWVAR_ChannelNames - find the real channel names
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#
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# Parameter hash = hash of device addressed
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#
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########################################################################################
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sub OWVAR_ChannelNames($) {
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my ($hash) = @_;
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my $name = $hash->{NAME};
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my $state = $hash->{READINGS}{"state"}{VAL};
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my ($cname,@cnama,$unit);
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#-- name
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$cname = defined($attr{$name}{"Name"}) ? $attr{$name}{"Name"} : "value";
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@cnama = split(/\|/,$cname);
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if( int(@cnama)!=2){
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push(@cnama,$cnama[0]);
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}
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$owg_channel=$cnama[0];
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#-- unit
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$unit = defined($attr{$name}{"Unit"}) ? $attr{$name}{"Unit"} : "\%";
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#-- put into readings
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$hash->{READINGS}{"value"}{ABBR} = $cnama[1];
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$hash->{READINGS}{"value"}{UNIT} = " ".$unit;
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}
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########################################################################################
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#
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# OWVAR_FormatValues - put together various format strings
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#
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# Parameter hash = hash of device addressed, fs = format string
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#
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########################################################################################
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sub OWVAR_FormatValues($) {
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my ($hash) = @_;
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my $name = $hash->{NAME};
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my $interface = $hash->{IODev}->{TYPE};
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my ($vval,$vlow,$vhigh,$vfunc,$ufunc,$ret);
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#-- no change in any value if invalid reading
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#for (my $i=0;$i<int(@owg_fixed);$i++){
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# return "" if( (!defined($hash->{owg_val})) || ($hash->{owg_val} eq "") );
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#}
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#-- obtain channel names
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OWVAR_ChannelNames($hash);
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#-- put into READINGS
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readingsBeginUpdate($hash);
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#-- formats for output
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if (defined($attr{$name}{"Function"})){
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($vfunc,$ufunc) = split('\|',$attr{$name}{"Function"});
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#-- replace by proper values (V -> value)
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$vfunc =~ s/V/\$hash->{owg_val}/g;
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$vfunc = eval($vfunc);
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if( !$vfunc ){
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$vval = 0.0;
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} elsif( $vfunc ne "" ){
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$vval = $vfunc;
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} else {
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$vval = "???";
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}
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}else{
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$vval = $hash->{owg_val};
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}
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#-- string buildup for return value, STATE and alarm
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my $svalue .= sprintf( "%s: %5.3f%s", $hash->{READINGS}{"value"}{ABBR}, $vval,$hash->{READINGS}{"value"}{UNIT});
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#-- put into READINGS
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$vval = sprintf( "%5.3f", $vval);
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readingsBulkUpdate($hash,$owg_channel,$vval);
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#-- STATE
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readingsBulkUpdate($hash,"state",$svalue);
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readingsEndUpdate($hash,1);
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return $svalue;
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}
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########################################################################################
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#
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# OWVAR_Get - Implements GetFn function
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#
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# Parameter hash = hash of device addressed, a = argument array
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#
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########################################################################################
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sub OWVAR_Get($@) {
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my ($hash, @a) = @_;
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my $reading = $a[1];
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my $name = $hash->{NAME};
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my $model = $hash->{OW_MODEL};
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my $value = undef;
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my $ret = "";
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#-- check syntax
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return "OWVAR: Get argument is missing @a"
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if(int(@a) < 2);
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#-- check argument
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return "OWVAR: Get with unknown argument $a[1], choose one of ".join(" ", sort keys %gets)
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if(!defined($gets{$a[1]}));
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#-- get id
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if($a[1] eq "id") {
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$value = $hash->{ROM_ID};
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return "$name.id => $value";
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}
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#-- hash of the busmaster
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my $master = $hash->{IODev};
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#-- Get other values according to interface type
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my $interface= $hash->{IODev}->{TYPE};
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#-- get present
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if($a[1] eq "present" ) {
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#-- OWX interface
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if( $interface =~ /^OWX/ ){
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#-- asynchronous mode
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if( $hash->{ASYNC} ){
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Log3 $name, 1,"OWVAR: Get ASYNC interface not implemented";
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#eval {
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# OWX_ASYNC_RunToCompletion($hash,OWX_ASYNC_PT_Verify($hash));
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#};
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#return GP_Catch($@) if $@;
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return "$name.present => ".ReadingsVal($name,"present","unknown");
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} else {
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$value = OWX_Verify($master,$hash->{ROM_ID});
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}
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$hash->{PRESENT} = $value;
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return "$name.present => $value";
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} else {
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return "OWVAR: Verification not yet implemented for interface $interface";
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}
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}
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#-- get version
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if( $a[1] eq "version") {
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return "$name.version => $owx_version";
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}
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if( $a[1] eq "value") {
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#-- OWX interface
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if( $interface eq "OWX" ){
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#-- not different from getting all values ..
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$ret = OWXVAR_GetValues($hash);
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}elsif( $interface eq "OWX_ASYNC" ){
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Log3 $name,1,"OWVAR: Get ASYNC interface not implemented";
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#eval {
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# $ret = OWX_ASYNC_RunToCompletion($hash,OWXVAR_PT_GetValues($hash));
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#};
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#$ret = GP_Catch($@) if $@;
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#-- OWFS interface
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}elsif( $interface eq "OWServer" ){
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$ret = OWFSVAR_GetValues($hash);
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#-- Unknown interface
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}else{
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return "OWVAR: Get with wrong IODev type $interface";
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}
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}
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#-- process results
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if( $master->{ASYNCHRONOUS} ){
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return "OWVAR: $name getting value, please wait for completion";
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}else{
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#-- when we have a return code, we have an error
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if( defined($ret) ){
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return "OWVAR: Could not get values from device $name, return was $ret";
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}
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#-- return the special reading
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if ($reading eq "value") {
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return "OWVAR: $name.value => ".
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$hash->{READINGS}{"value"}{VAL};
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} else {
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return undef;
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}
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}
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}
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#######################################################################################
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#
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# OWVAR_GetValues - Updates the readings from device
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#
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# Parameter hash = hash of device addressed
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#
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########################################################################################
|
||||
|
||||
sub OWVAR_GetValues($@) {
|
||||
my $hash = shift;
|
||||
|
||||
my $name = $hash->{NAME};
|
||||
my $value = "";
|
||||
my $ret;
|
||||
|
||||
#-- check if device needs to be initialized
|
||||
if( $hash->{READINGS}{"state"}{VAL} eq "defined"){
|
||||
OWVAR_InitializeDevice($hash);
|
||||
OWVAR_FormatValues($hash);
|
||||
}
|
||||
|
||||
#-- restart timer for updates
|
||||
RemoveInternalTimer($hash);
|
||||
#InternalTimer(time()+$hash->{INTERVAL}, "OWVAR_GetValues", $hash, 0);
|
||||
|
||||
#-- Get values according to interface type
|
||||
my $interface= $hash->{IODev}->{TYPE};
|
||||
if( $interface eq "OWX" ){
|
||||
#-- max 3 tries
|
||||
for(my $try=0; $try<3; $try++){
|
||||
$ret = OWXVAR_GetValues($hash);
|
||||
last
|
||||
if( !defined($ret) );
|
||||
}
|
||||
}elsif( $interface eq "OWX_ASYNC" ){
|
||||
Log3 $name, 1,"OWVAR: Get ASYNC interface not implemented";
|
||||
}elsif( $interface eq "OWServer" ){
|
||||
$ret = OWFSVAR_GetValues($hash);
|
||||
}else{
|
||||
Log3 $name, 3, "OWVAR: GetValues with wrong IODev type $interface";
|
||||
return 1;
|
||||
}
|
||||
|
||||
#-- process results
|
||||
if( defined($ret) ){
|
||||
$hash->{ERRCOUNT}=$hash->{ERRCOUNT}+1;
|
||||
if( $hash->{ERRCOUNT} > 5 ){
|
||||
$hash->{INTERVAL} = 9999;
|
||||
}
|
||||
return "OWVAR: Could not get values from device $name for ".$hash->{ERRCOUNT}." times, reason $ret";
|
||||
}
|
||||
|
||||
return undef;
|
||||
}
|
||||
|
||||
########################################################################################
|
||||
#
|
||||
# OWVAR_InitializeDevice - delayed setting of initial readings
|
||||
#
|
||||
# Parameter hash = hash of device addressed
|
||||
#
|
||||
########################################################################################
|
||||
|
||||
sub OWVAR_InitializeDevice($) {
|
||||
my ($hash) = @_;
|
||||
|
||||
my $name = $hash->{NAME};
|
||||
my $interface = $hash->{IODev}->{TYPE};
|
||||
|
||||
my $ret="";
|
||||
my ($ret1,$ret2);
|
||||
|
||||
#-- Initial readings
|
||||
$hash->{owg_val} = "0.0";
|
||||
$hash->{ERRCOUNT} = 0;
|
||||
|
||||
#-- Set state to initialized
|
||||
readingsSingleUpdate($hash,"state","initialized",1);
|
||||
|
||||
return OWVAR_GetValues($hash);
|
||||
}
|
||||
|
||||
#######################################################################################
|
||||
#
|
||||
# OWVAR_Set - Set one value for device
|
||||
#
|
||||
# Parameter hash = hash of device addressed
|
||||
# a = argument string
|
||||
#
|
||||
########################################################################################
|
||||
|
||||
sub OWVAR_Set($@) {
|
||||
my ($hash, @a) = @_;
|
||||
|
||||
#-- for the selector: which values are possible
|
||||
return join(" ", sort keys %sets) if(@a == 2);
|
||||
#-- check syntax
|
||||
return "OWVAR: Set needs one parameter"
|
||||
if(int(@a) != 3);
|
||||
#-- check argument
|
||||
return "OWVAR: Set with unknown argument $a[1], choose one of ".join(",", sort keys %sets)
|
||||
if(!defined($sets{$a[1]}));
|
||||
|
||||
#-- define vars
|
||||
my $key = $a[1];
|
||||
my $value = $a[2];
|
||||
my $ret = undef;
|
||||
my($vfunc,$ufunc);
|
||||
my $name = $hash->{NAME};
|
||||
my $model = $hash->{OW_MODEL};
|
||||
my $interface = $hash->{IODev}->{TYPE};
|
||||
|
||||
#-- formats for input
|
||||
if (defined($attr{$name}{"Function"})){
|
||||
($vfunc,$ufunc) = split('\|',$attr{$name}{"Function"});
|
||||
#-- replace by proper values (U -> )
|
||||
$ufunc =~ s/U/\$value/g;
|
||||
$ufunc = eval($ufunc);
|
||||
if( !$ufunc ){
|
||||
$value = 0.0;
|
||||
} elsif( $ufunc ne "" ){
|
||||
$value = $ufunc;
|
||||
} else {
|
||||
$value = "???";
|
||||
}
|
||||
}
|
||||
|
||||
#-- put into device
|
||||
#-- OWX interface
|
||||
if( $interface eq "OWX" ){
|
||||
$ret = OWXVAR_SetValues($hash,$key,$value);
|
||||
}elsif( $interface eq "OWX_ASYNC" ){
|
||||
Log3 $name, 1,"OWVAR: Set ASYNC interface not implemented";
|
||||
#-- OWFS interface
|
||||
}elsif( $interface eq "OWServer" ){
|
||||
$ret = OWFSVAR_SetValues($hash,$key,$value);
|
||||
} else {
|
||||
return "OWVAR: Set with wrong IODev type $interface";
|
||||
}
|
||||
#-- process results
|
||||
if( defined($ret) ){
|
||||
return "OWVAR: Could not set device $name, reason: ".$ret;
|
||||
}
|
||||
|
||||
#-- process results
|
||||
$hash->{PRESENT} = 1;
|
||||
OWVAR_FormatValues($hash);
|
||||
Log3 $name, 4, "OWVAR: Set $hash->{NAME} $key $value";
|
||||
|
||||
return undef;
|
||||
}
|
||||
|
||||
########################################################################################
|
||||
#
|
||||
# OWVAR_Undef - Implements UndefFn function
|
||||
#
|
||||
# Parameter hash = hash of device addressed
|
||||
#
|
||||
########################################################################################
|
||||
|
||||
sub OWVAR_Undef ($) {
|
||||
my ($hash) = @_;
|
||||
|
||||
delete($modules{OWVAR}{defptr}{$hash->{OW_ID}});
|
||||
RemoveInternalTimer($hash);
|
||||
return undef;
|
||||
}
|
||||
|
||||
########################################################################################
|
||||
#
|
||||
# The following subroutines in alphabetical order are only for a 1-Wire bus connected
|
||||
# via OWFS
|
||||
#
|
||||
# Prefix = OWFSVAR
|
||||
#
|
||||
########################################################################################
|
||||
#
|
||||
# OWFSVAR_GetValues - Get values from device
|
||||
#
|
||||
# Parameter hash = hash of device addressed
|
||||
#
|
||||
########################################################################################
|
||||
|
||||
sub OWFSVAR_GetValues($) {
|
||||
my ($hash) = @_;
|
||||
|
||||
#-- ID of the device
|
||||
my $owx_add = substr($hash->{ROM_ID},0,15);
|
||||
|
||||
#-- hash of the busmaster
|
||||
my $master = $hash->{IODev};
|
||||
my $name = $hash->{NAME};
|
||||
|
||||
#-- reset presence
|
||||
$hash->{PRESENT} = 0;
|
||||
|
||||
#-- get values - or should we rather get the uncached ones ?
|
||||
Log 1, "OWVAR: trying to read from OWserver /$owx_add/wiper";
|
||||
my $val = OWServer_Read($master,"/$owx_add/wiper");
|
||||
|
||||
return "no return from OWServer"
|
||||
if( !defined($val) );
|
||||
return "empty return from OWServer"
|
||||
if( $val eq "" );
|
||||
|
||||
$hash->{owg_val}=sprintf("%5.2f",(1.0-$val/255.0)*100);
|
||||
|
||||
#-- and now from raw to formatted values
|
||||
$hash->{PRESENT} = 1;
|
||||
my $value = OWVAR_FormatValues($hash);
|
||||
return undef;
|
||||
}
|
||||
|
||||
########################################################################################
|
||||
#
|
||||
# OWFSVAR_SetValues - Set values in device
|
||||
#
|
||||
# Parameter hash = hash of device addressed
|
||||
#
|
||||
########################################################################################
|
||||
|
||||
sub OWFSVAR_SetValues($$$) {
|
||||
my ($hash,$key,$value) = @_;
|
||||
|
||||
#-- ID of the device
|
||||
my $owx_add = substr($hash->{ROM_ID},0,15);
|
||||
|
||||
#-- hash of the busmaster
|
||||
my $master = $hash->{IODev};
|
||||
my $name = $hash->{NAME};
|
||||
|
||||
#-- translate from 0..100 to 0..255
|
||||
return sprintf("OWFSVAR: Set with wrong value $value for $key, range is [%3.1f,%3.1f]",0,100)
|
||||
if($value < 0 || $value > 100);
|
||||
my $pos = floor((100-$value)*2.55+0.5);
|
||||
|
||||
Log 1,"OWVAR: trying to write to OWserver /$owx_add/wiper => $pos";
|
||||
|
||||
OWServer_Write($master, "/$owx_add/wiper/",$pos);
|
||||
|
||||
return undef
|
||||
}
|
||||
|
||||
########################################################################################
|
||||
#
|
||||
# The following subroutines in alphabetical order are only for a 1-Wire bus connected
|
||||
# directly to the FHEM server
|
||||
#
|
||||
# Prefix = OWXVAR
|
||||
#
|
||||
########################################################################################
|
||||
#
|
||||
# OWXVAR_BinValues - Process reading from one device - translate binary into raw
|
||||
#
|
||||
# Parameter hash = hash of device addressed
|
||||
# context = mode for evaluating the binary data
|
||||
# proc = processing instruction, also passed to OWX_Read.
|
||||
# bitwise interpretation !!
|
||||
# if 0, nothing special
|
||||
# if 1 = bit 0, a reset will be performed not only before, but also after
|
||||
# the last operation in OWX_Read
|
||||
# if 2 = bit 1, the initial reset of the bus will be suppressed
|
||||
# if 8 = bit 3, the fillup of the data with 0xff will be suppressed
|
||||
# if 16= bit 4, the insertion will be at the top of the queue
|
||||
# owx_dev = ROM ID of slave device
|
||||
# crcpart = part of the data that needs to be part of the CRC check
|
||||
# numread = number of bytes to receive
|
||||
# res = result string
|
||||
#
|
||||
#
|
||||
########################################################################################
|
||||
|
||||
sub OWXVAR_BinValues($$$$$$$) {
|
||||
my ($hash, $context, $reset, $owx_dev, $crcpart, $numread, $res) = @_;
|
||||
|
||||
my ($i,$j,$k,@data);
|
||||
my $change = 0;
|
||||
|
||||
my $master = $hash->{IODev};
|
||||
my $name = $hash->{NAME};
|
||||
|
||||
my $msg;
|
||||
OWX_WDBG($name,"OWVAR: $name: BinValues called with ",$res)
|
||||
if( $main::owx_debug>2 );
|
||||
|
||||
#-- process results
|
||||
#die "OWVAR: $name not accessible in 2nd step" unless ( defined $res and $res ne 0 );
|
||||
|
||||
if( $context eq "getstate" ) {
|
||||
#-- process results
|
||||
@data=split(//,$res);
|
||||
if (@data != 2) {
|
||||
$msg="Error- $name returns invalid data length, ".int(@data)." instead of 2 bytes ";
|
||||
}else{
|
||||
$msg="No error";
|
||||
my $stat = ord($data[0]);
|
||||
my $val = ord($data[1]);
|
||||
|
||||
$hash->{owg_val}=sprintf("%5.2f",(1.0-$val/255.0)*100);
|
||||
|
||||
#-- and now from raw to formatted values
|
||||
$hash->{PRESENT} = 1;
|
||||
my $value = OWVAR_FormatValues($hash);
|
||||
#Log3 $hash->{NAME}, 5, $value;
|
||||
}
|
||||
OWX_WDBG($name,"OWXVAR_BinValues: ".$msg,$res)
|
||||
if( $main::owx_debug>2 );
|
||||
return undef;
|
||||
|
||||
}elsif( $context eq "setstate" ) {
|
||||
my $val = ord($res);
|
||||
#$hash->{owg_val}=sprintf("%5.2f",(1-$val/255.0)*100);
|
||||
#-- process results
|
||||
if (length($res) != 1){
|
||||
$msg="$name returns invalid data length, ".length($res)." instead of 1 bytes, ";
|
||||
}elsif($val ne $crcpart){
|
||||
$msg="$name returns invalid data $val instead of $crcpart, "
|
||||
}else{
|
||||
$msg="No error, val = $val";
|
||||
}
|
||||
OWX_WDBG($name,"OWXVAR_BinValues: ".$msg,$res)
|
||||
if( $main::owx_debug>2 );
|
||||
#### master slave context proc owx_dev data crcpart numread startread callback delay
|
||||
# 2 suppresses the initial bus reset, 16 inserts at top of queue
|
||||
OWX_Qomplex($master, $hash, "confirm", 18, $owx_dev, "\x96", 0, 0, 11, undef, 0);
|
||||
|
||||
return undef;
|
||||
}
|
||||
}
|
||||
|
||||
########################################################################################
|
||||
#
|
||||
# OWXVAR_GetValues - Trigger reading from one device
|
||||
#
|
||||
# Parameter hash = hash of device addressed
|
||||
#
|
||||
########################################################################################
|
||||
|
||||
sub OWXVAR_GetValues($) {
|
||||
my ($hash) = @_;
|
||||
|
||||
#-- ID of the device
|
||||
my $owx_dev = $hash->{ROM_ID};
|
||||
|
||||
#-- hash of the busmaster
|
||||
my $master = $hash->{IODev};
|
||||
my $name = $hash->{NAME};
|
||||
|
||||
#-- NOW ask the specific device
|
||||
#-- issue the match ROM command \x55 and the read wiper command \xF0
|
||||
#-- reading 9 + 1 + 2 data bytes and 0 CRC byte = 12 bytes
|
||||
#-- OLD OWX interface
|
||||
if( !$master->{ASYNCHRONOUS} ){
|
||||
OWX_Reset($master);
|
||||
my $res=OWX_Complex($master,$owx_dev,"\xF0",2);
|
||||
return "OWVAR: $name not accessible in reading"
|
||||
if( $res eq 0 );
|
||||
return "OWVAR: $name has returned invalid data"
|
||||
if( length($res)!=12);
|
||||
OWX_Reset($master);
|
||||
eval {
|
||||
OWXVAR_BinValues($hash,"getstate",0,$owx_dev,0,2,substr($res,10,2));
|
||||
};
|
||||
return $@ ? $@ : undef;
|
||||
#-- NEW OWX interface
|
||||
}else{
|
||||
#### master slave context proc owx_dev data crcpart numread startread callback delay
|
||||
OWX_Qomplex($master, $hash, "getstate", 0, $owx_dev, "\xF0", 0, 2, 10, \&OWXVAR_BinValues, 0);
|
||||
return undef;
|
||||
}
|
||||
}
|
||||
|
||||
#######################################################################################
|
||||
#
|
||||
# OWXVAR_SetValues - Implements SetFn function
|
||||
#
|
||||
# Parameter hash = hash of device addressed
|
||||
# a = argument array
|
||||
#
|
||||
#######################################################################################
|
||||
|
||||
sub OWXVAR_SetValues($$$) {
|
||||
my ($hash, $key,$value) = @_;
|
||||
|
||||
#-- ID of the device
|
||||
my $owx_dev = $hash->{ROM_ID};
|
||||
|
||||
#-- hash of the busmaster
|
||||
my $master = $hash->{IODev};
|
||||
my $name = $hash->{NAME};
|
||||
|
||||
#-- translate from 0..100 to 0..255
|
||||
return sprintf("OWXVAR: Set with wrong value $value for $key, range is [%3.1f,%3.1f]",0,100)
|
||||
if($value < 0 || $value > 100);
|
||||
my $pos = floor((100-$value)*2.55+0.5);
|
||||
|
||||
#-- issue the match ROM command \x55 and the write wiper command \x0F,
|
||||
# followed by 1 bytes of data
|
||||
#
|
||||
my $select=sprintf("\x0F%c",$pos);
|
||||
#-- OLD OWX interface
|
||||
if( !$master->{ASYNCHRONOUS} ){
|
||||
OWX_Reset($master);
|
||||
my $res=OWX_Complex($master,$owx_dev,$select,1);
|
||||
return "OWXVAR: $name not accessible"
|
||||
if( $res eq 0 );
|
||||
my $rv=ord(substr($res,11,1));
|
||||
return "OWXVAR: $name: Set failed with return value $rv from set value $pos"
|
||||
if($rv ne $pos);
|
||||
my $res2=OWX_Complex($master,$owx_dev,"\x96",1);
|
||||
my $rv2=ord(substr($res2,11,1));
|
||||
return "OWXVAR: $name: Set failed with return value $rv2 from release value"
|
||||
if($rv2 ne 0);
|
||||
OWX_Reset($master);
|
||||
$hash->{owg_val}=sprintf("%5.2f",(1-$pos/255.0)*100);
|
||||
#-- NEW OWX interface
|
||||
}else{
|
||||
#### master slave context proc owx_dev data crcpart numread startread callback delay
|
||||
OWX_Qomplex($master, $hash, "setstate", 0, $owx_dev, $select, $pos, 1, 11, \&OWXVAR_BinValues, 0);
|
||||
$hash->{owg_val}=sprintf("%5.2f",(1-$pos/255.0)*100);
|
||||
}
|
||||
return undef;
|
||||
}
|
||||
|
||||
|
||||
|
||||
1;
|
||||
|
||||
=pod
|
||||
=begin html
|
||||
|
||||
<a name="OWVAR"></a>
|
||||
<h3>OWVAR</h3>
|
||||
<p>FHEM module to commmunicate with 1-Wire bus digital potentiometer devices of type DS2890<br />
|
||||
<br />This 1-Wire module works with the OWX interface module, but not yet with the OWServer interface module.
|
||||
|
||||
</p>
|
||||
<a name="OWVARexample"></a>
|
||||
<h4>Example</h4>
|
||||
<p>
|
||||
<code>define OWX_P OWVAR E8D09B030000 </code>
|
||||
<br />
|
||||
<code>attr OWX_P Function 1.02 * V + 0.58 | (U-0.58) / 1.02</code>
|
||||
<br />
|
||||
</p><br />
|
||||
<a name="OWVARdefine"></a>
|
||||
<h4>Define</h4>
|
||||
<p>
|
||||
<code>define <name> OWVAR <id></code> or <br/>
|
||||
<code>define <name> OWVAR <fam>.<id> </code>
|
||||
<br /><br /> Define a 1-Wire digital potentiometer device.</p>
|
||||
<ul>
|
||||
<li>
|
||||
<code><fam></code>
|
||||
<br />2-character unique family id, must be 2C </li>
|
||||
<li>
|
||||
<code><id></code>
|
||||
<br />12-character unique ROM id of the thermometer device without family id and CRC
|
||||
code
|
||||
</li>
|
||||
</ul>
|
||||
<a name="OWVARset"></a>
|
||||
<h4>Set</h4>
|
||||
<ul>
|
||||
<li><a name="owvar_value">
|
||||
<code>set <name> value <float></code></a>
|
||||
<br /> The value of the potentiometer resistance against ground. Arguments may be in the
|
||||
range of [0,100] without a Function attribute, or in the range needed for a <a href="#owvar_function">Function</a> </li>
|
||||
</ul>
|
||||
<br />
|
||||
<a name="OWVARget"></a>
|
||||
<h4>Get</h4>
|
||||
<ul>
|
||||
<li><a name="owvar_id">
|
||||
<code>get <name> id</code></a>
|
||||
<br /> Returns the full 1-Wire device id OW_FAMILY.ROM_ID.CRC </li>
|
||||
<li><a name="owvar_present">
|
||||
<code>get <name> present</code></a>
|
||||
<br /> Returns 1 if this 1-Wire device is present, otherwise 0. </li>
|
||||
<li><a name="owvar_value2">
|
||||
<code>get <name> value</code></a><br />Obtain the value. </li>
|
||||
</ul>
|
||||
<br />
|
||||
<a name="OWVARattr"></a>
|
||||
<h4>Attributes</h4>
|
||||
<ul>
|
||||
<li><a name="owvar_cname"><code>attr <name> Name
|
||||
<string>[|<string>]</code></a>
|
||||
<br />name for the reading [|name used in state reading]. </li>
|
||||
<li><a name="owvar_cunit"><code>attr <name> Unit
|
||||
<string>[|<string>]</code></a>
|
||||
<br />unit of measurement used in state reading. </li>
|
||||
<li><a name="owvar_cfunction"> <code>attr <name> Function
|
||||
<string>|<string></code></a>
|
||||
<br />The first string is an arbitrary functional expression u(V) involving the variable V. V is replaced by
|
||||
the raw potentiometer reading (in the range of [0,100]). The second string must be the inverse
|
||||
function v(U) involving the variable U, such that U can be replaced by the value given in the
|
||||
<a href="#OWVARset">Set</a> argument. Care has to taken that v(U) is in the range [0,100].
|
||||
No check on the validity of these functions is performed,
|
||||
<b>singularities may crash FHEM.</b> <a href="#OWVARexample">Example see above</a>.
|
||||
</li>
|
||||
<li><a href="#readingFnAttributes">readingFnAttributes</a></li>
|
||||
</ul>
|
||||
|
||||
=end html
|
||||
=cut
|
||||
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Reference in New Issue
Block a user