265 lines
6.2 KiB
Perl
265 lines
6.2 KiB
Perl
package Dahdi::Chans;
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#
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# Written by Oron Peled <oron@actcom.co.il>
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# Copyright (C) 2007, Xorcom
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# This program is free software; you can redistribute and/or
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# modify it under the same terms as Perl itself.
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#
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# $Id$
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#
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use strict;
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use Dahdi::Utils;
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=head1 NAME
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Dahdi::Chans - Perl interface to a Dahdi channel information
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This package allows access from perl to information about a Dahdi
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channel. It is part of the Dahdi Perl package.
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=head1 alarms()
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In an array context returns a list of alarm strings (RED, BLUE, etc.)
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for this channel (an empty list == false if there are no alarms).
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In scalar context returns the number of alarms for a specific channel.
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=head1 battery()
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Returns 1 if channel reports to have battery (A remote PBX connected to
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an FXO port), 0 if channel reports to not have battery and C<undef>
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otherwise.
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Currently only wcfxo and Astribank FXO modules report battery. For the
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rest of the channels
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=head1 fqn()
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(Fully Qualified Name) Returns the full "name" of the channel.
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=head1 index()
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Returns the number of this channel (in the span).
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=head1 num()
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Returns the number of this channel as a Dahdi channel.
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=head signalling()
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Returns the signalling set for this channel through /etc/dahdi/system.conf .
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This is always empty before dahdi_cfg was run. And shows the "other" type
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for FXS and for FXO.
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=head1 span()
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Returns a reference to the span to which this channel belongs.
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=head1 type()
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Returns the type of the channel: 'FXS', 'FXO', 'EMPTY', etc.
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=cut
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my @alarm_types = qw(BLUE YELLOW RED LOOP RECOVERING NOTOPEN);
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# Taken from dahdi-base.c
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my @sigtypes = (
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"FXSLS",
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"FXSKS",
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"FXSGS",
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"FXOLS",
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"FXOKS",
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"FXOGS",
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"E&M-E1",
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"E&M",
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"Clear",
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"HDLCRAW",
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"HDLCFCS",
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"HDLCNET",
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"Hardware-assisted HDLC",
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"MTP2",
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"Slave",
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"CAS",
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"DACS",
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"DACS+RBS",
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"SF (ToneOnly)",
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"Unconfigured",
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"Reserved"
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);
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sub new($$$$$$) {
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my $pack = shift or die "Wasn't called as a class method\n";
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my $span = shift or die "Missing a span parameter\n";
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my $index = shift;
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my $line = shift or die "Missing an input line\n";
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defined $index or die "Missing an index parameter\n";
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my $self = {
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'SPAN' => $span,
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'INDEX' => $index,
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};
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bless $self, $pack;
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my ($num, $fqn, $rest) = split(/\s+/, $line, 3);
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$num or die "Missing a channel number parameter\n";
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$fqn or die "Missing a channel fqn parameter\n";
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my $signalling = '';
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my @alarms = ();
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my $info = '';
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if(defined $rest) {
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# remarks in parenthesis (In use), (no pcm)
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while($rest =~ s/\s*(\([^)]+\))\s*/ /) {
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$info .= " $1";
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}
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# Alarms
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foreach my $alarm (@alarm_types) {
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if($rest =~ s/\s*(\b${alarm}\b)\s*/ /) {
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push(@alarms, $1);
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}
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}
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foreach my $sig (@sigtypes) {
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if($rest =~ s/^\Q$sig\E/ /) {
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$signalling = $sig;
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last;
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}
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}
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warn "Unrecognized garbage '$rest' in $fqn\n"
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if $rest =~ /\S/;
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}
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$self->{NUM} = $num;
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$self->{FQN} = $fqn;
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$self->{SIGNALLING} = $signalling;
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$self->{ALARMS} = \@alarms;
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$self->{INFO} = $info;
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my $type;
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if($fqn =~ m|\bXPP_(\w+)/.*$|) {
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$type = $1; # An Astribank
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} elsif ($fqn =~ m{\bWCFXO/.*}) {
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$type = "FXO"; # wcfxo - x100p and relatives.
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# A single port card. The driver issue RED alarm when
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# There's no better
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$self->{BATTERY} = !($span->description =~ /\bRED\b/);
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} elsif ($fqn =~ m{\bFXS/.*}) {
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$type = "FXS"; # likely Rhino
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} elsif ($fqn =~ m{\bFXO/.*}) {
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$type = "FXO"; # likely Rhino
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} elsif ($fqn =~ m{---/.*}) {
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$type = "EMPTY"; # likely Rhino, empty slot.
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} elsif ($fqn =~ m{\b(TE[24]|WCT1|WCT13x|Tor2|TorISA|WP[TE]1|cwain[12]|R[124]T1|AP40[124]|APE40[124])/.*}) {
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# TE[24]: Digium wct4xxp
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# WCT1: Digium single span card drivers?
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# Tor2: Tor PCI cards
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# TorISA: ISA ones (still used?)
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# WP[TE]1: Sangoma. TODO: this one tells us if it is TE or NT.
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# cwain: Junghanns E1 card.
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# R[124]: Rhino r1t1/rxt1 cards
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# AP40[124]: Aligera AP40X cards
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# APE40[124]: Aligera APE40X cards
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$type = "PRI";
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} elsif ($fqn =~ m{\b(WCBRI|B4|ZTHFC\d*|ztqoz\d*)/.*}) {
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# WCBRI: The Digium Hx8 series cards with BRI module.
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# B4: The Digium wcb4xxp DAHDI driver
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# ZTHFC: HFC-s single-port card (zaphfc/vzaphfc)
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# ztqoz: qozap (Junghanns) multi-port HFC card
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$type = "BRI";
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} elsif ($fqn =~ m{\bDYN/.*}) {
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# DYN : Dynamic span (TDMOE)
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$type = "DYN"
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} elsif ($fqn =~ m{\bztgsm/.*}) {
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# Junghanns GSM card
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$type = "GSM";
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} elsif($signalling ne '') {
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$type = 'FXO' if $signalling =~ /^FXS/;
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$type = 'FXS' if $signalling =~ /^FXO/;
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} else {
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$type = $self->probe_type();
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}
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$self->type($type);
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$self->span()->type($type)
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if ! defined($self->span()->type()) ||
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$self->span()->type() eq 'UNKNOWN';
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return $self;
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}
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=head1 probe_type()
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In the case of some cards, the information in /proc/dahdi is not good
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enough to tell the type of each channel. In this case an extra explicit
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probe is needed.
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Currently this is implemented by using some invocations of dahdi_cfg(8).
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It may later be replaced by dahdi_scan(8).
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=cut
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my $dahdi_cfg = $ENV{DAHDI_CFG} || '/usr/sbin/dahdi_cfg';
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sub probe_type($) {
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my $self = shift;
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my $fqn = $self->fqn;
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my $num = $self->num;
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my $type;
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if($fqn =~ m:WCTDM/|WRTDM/|OPVXA1200/:) {
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my %maybe;
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undef %maybe;
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foreach my $sig (qw(fxo fxs)) {
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my $cmd = "echo ${sig}ks=$num | $dahdi_cfg -c /dev/fd/0";
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$maybe{$sig} = system("$cmd >/dev/null 2>&1") == 0;
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}
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if($maybe{fxo} and $maybe{fxs}) {
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$type = 'EMPTY';
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} elsif($maybe{fxo}) {
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$type = 'FXS';
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} elsif($maybe{fxs}) {
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$type = 'FXO';
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} else {
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$type = 'EMPTY';
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}
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} else {
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$type = $self->type;
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}
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return $type;
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}
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sub battery($) {
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my $self = shift or die;
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my $span = $self->span or die;
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return undef unless defined $self->type && $self->type eq 'FXO';
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return $self->{BATTERY} if defined $self->{BATTERY};
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my $xpd = Dahdi::Xpp::xpd_of_span($span);
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my $index = $self->index;
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return undef if !$xpd;
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# It's an XPD (FXO)
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my @lines = @{$xpd->lines};
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my $line = $lines[$index];
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return $line->battery;
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}
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sub alarms($) {
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my $self = shift or die;
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my @alarms = @{$self->{ALARMS}};
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return @alarms;
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}
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sub blink($$) {
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my $self = shift or die;
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my $on = shift;
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my $span = $self->span or die;
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my $xpd = Dahdi::Xpp::xpd_of_span($span);
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my $index = $self->index;
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return undef if !$xpd;
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my @lines = @{$xpd->lines};
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my $line = $lines[$index];
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return $line->blink($on);
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}
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1;
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