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package Dahdi::Xpp::Xbus;
#
# Written by Oron Peled <oron@actcom.co.il>
# Copyright (C) 2007, Xorcom
# This program is free software; you can redistribute and/or
# modify it under the same terms as Perl itself.
#
# $Id$
#
use strict;
use Dahdi::Utils;
use Dahdi::Hardware;
use Dahdi::Xpp::Xpd;
sub xpds($) {
my $xbus = shift;
return @{$xbus->{XPDS}};
}
sub by_number($) {
my $busnumber = shift;
die "Missing xbus number parameter" unless defined $busnumber;
my @xbuses = Dahdi::Xpp::xbuses();
my ($xbus) = grep { $_->num == $busnumber } @xbuses;
return $xbus;
}
sub by_label($) {
my $label = shift;
die "Missing xbus label parameter" unless defined $label;
my @xbuses = Dahdi::Xpp::xbuses();
my ($xbus) = grep { $_->label eq $label } @xbuses;
return $xbus;
}
sub get_xpd_by_number($$) {
my $xbus = shift;
my $xpdid = shift;
die "Missing XPD id parameter" unless defined $xpdid;
$xpdid = sprintf("%02d", $xpdid);
my @xpds = $xbus->xpds;
my ($wanted) = grep { $_->id eq $xpdid } @xpds;
return $wanted;
}
sub xbus_getattr($$) {
my $xbus = shift || die;
my $attr = shift || die;
$attr = lc($attr);
my $file = sprintf "%s/%s", $xbus->sysfs_dir, $attr;
open(F, $file) || die "Failed opening '$file': $!";
my $val = <F>;
close F;
chomp $val;
return $val;
}
sub read_attrs() {
my $xbus = shift || die;
my @attrnames = qw(CONNECTOR LABEL STATUS);
my @attrs;
foreach my $attr (@attrnames) {
my $val = xbus_getattr($xbus, $attr);
if($attr eq 'STATUS') {
# Some values are in all caps as well
$val = uc($val);
} elsif($attr eq 'CONNECTOR') {
$val =~ s/^/@/; # Add prefix
} elsif($attr eq 'LABEL') {
# Fix badly burned labels.
$val =~ s/[[:^print:]]/_/g;
}
$xbus->{$attr} = $val;
}
}
sub transport_type($$) {
my $xbus = shift || die;
my $xbus_dir = shift;
my $transport = "$xbus_dir/transport";
if(-e "$transport/ep_00") { # It's USB
$xbus->{TRANSPORT_TYPE} = 'USB';
} else {
warn "Unkown transport in $xbus_dir\n";
undef $xbus->{TRANSPORT_TYPE};
}
return $xbus->{TRANSPORT_TYPE};
}
sub read_xpdnames($) {
my $xbus_dir = shift or die;
my $pat = sprintf "%s/[0-9][0-9]:[0-9]:[0-9]", $xbus_dir;
my @xpdnames;
#printf STDERR "read_xpdnames(%s): $pat\n", $xbus_dir;
foreach (glob $pat) {
die "Bad /sys entry: '$_'" unless m/^.*\/([0-9][0-9]):([0-9]):([0-9])$/;
my ($busnum, $unit, $subunit) = ($1, $2, $3);
my $name = sprintf("%02d:%1d:%1d", $1, $2, $3);
#print STDERR "\t> $_ ($name)\n";
push(@xpdnames, $name);
}
return @xpdnames;
}
sub read_num($) {
my $self = shift or die;
my $xbus_dir = $self->sysfs_dir;
my @xpdnames = read_xpdnames($xbus_dir);
my $first = shift @xpdnames or die "No XPDs for '$xbus_dir'\n";
$first =~ /^(\d+\d+).*/;
return $1;
}
sub new($$) {
my $pack = shift or die "Wasn't called as a class method\n";
my $parent_dir = shift or die;
my $entry_dir = shift or die;
my $xbus_dir = "$parent_dir/$entry_dir";
my $self = {};
bless $self, $pack;
$self->{SYSFS_DIR} = $xbus_dir;
my $num = $self->read_num;
$self->{NUM} = $num;
$self->{NAME} = "XBUS-$num";
$self->read_attrs;
# Get transport related info
my $transport = "$xbus_dir/transport";
die "OLD DRIVER: missing '$transport'\n" unless -e $transport;
my $transport_type = $self->transport_type($xbus_dir);
if(defined $transport_type) {
my $tt = "Dahdi::Hardware::$transport_type";
my $hw = $tt->set_transport($self, $xbus_dir);
#printf STDERR "Xbus::new transport($transport_type): %s\n", $hw->{HARDWARE_NAME};
}
my @xpdnames;
my @xpds;
@xpdnames = read_xpdnames($self->sysfs_dir);
foreach my $xpdstr (@xpdnames) {
my $xpd = Dahdi::Xpp::Xpd->new($self, $xpdstr);
push(@xpds, $xpd);
}
@{$self->{XPDS}} = sort { $a->id <=> $b->id } @xpds;
return $self;
}
sub pretty_xpds($) {
my $xbus = shift;
my @xpds = sort { $a->id <=> $b->id } $xbus->xpds();
my @xpd_types = map { $_->type } @xpds;
my $last_type = '';
my $mult = 0;
my $xpdstr = '';
foreach my $curr (@xpd_types) {
if(!$last_type || ($curr eq $last_type)) {
$mult++;
} else {
if($mult == 1) {
$xpdstr .= "$last_type ";
} elsif($mult) {
$xpdstr .= "$last_type*$mult ";
}
$mult = 1;
}
$last_type = $curr;
}
if($mult == 1) {
$xpdstr .= "$last_type ";
} elsif($mult) {
$xpdstr .= "$last_type*$mult ";
}
$xpdstr =~ s/\s*$//; # trim trailing space
return $xpdstr;
}
1;
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