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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::Xpp::Xpd;
my $proc_base = "/proc/xpp";
sub xpds($) {
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($$) {
my $xbus = shift;
my $xpdid = shift;
die "Missing XPD id parameter" unless defined $xpdid;
$xpdid = sprintf("%02d", $xpdid);
my @xpds = $xbus->xpds;
my ($wanted) = grep { $_->id eq $xpdid } @xpds;
return $wanted;
}
sub xbus_attr_path($$) {
my ($busnum, @attr) = @_;
foreach my $attr (@attr) {
my $file = sprintf "$Dahdi::Xpp::sysfs_astribanks/xbus-%02d/$attr", $busnum;
unless(-f $file) {
my $procfile = sprintf "/proc/xpp/XBUS-%02d/$attr", $busnum;
warn "$0: OLD DRIVER: missing '$file'. Fall back to '$procfile'\n";
$file = $procfile;
}
next unless -f $file;
return $file;
}
return undef;
}
sub xbus_getattr($$) {
my $xbus = shift || die;
my $attr = shift || die;
$attr = lc($attr);
my $file = xbus_attr_path($xbus->num, lc($attr));
open(F, $file) || die "Failed opening '$file': $!";
my $val = <F>;
close F;
chomp $val;
return $val;
}
sub read_attrs() {
my $xbus = shift || die;
my @attrnames = qw(CONNECTOR LABEL STATUS);
my @attrs;
foreach my $attr (@attrnames) {
my $val = xbus_getattr($xbus, $attr);
if($attr eq 'STATUS') {
# Some values are in all caps as well
$val = uc($val);
} elsif($attr eq 'LABEL') {
# Fix badly burned labels.
$val =~ s/[[:^print:]]/_/g;
}
$xbus->{$attr} = $val;
}
}
sub new($$) {
my $pack = shift or die "Wasn't called as a class method\n";
my $num = shift;
my $xbus_dir = "$Dahdi::Xpp::sysfs_astribanks/xbus-$num";
my $self = {
NUM => $num,
NAME => "XBUS-$num",
SYSFS_DIR => $xbus_dir,
};
bless $self, $pack;
$self->read_attrs;
# Get transport related info
my $transport = "$xbus_dir/transport";
my ($usbdev) = glob("$transport/usb_device:*");
if(defined $usbdev) { # It's USB
if($usbdev =~ /.*usb_device:usbdev(\d+)\.(\d+)/) {
my $busnum = $1;
my $devnum = $2;
#printf STDERR "DEBUG: %03d/%03d\n", $busnum, $devnum;
$self->{USB_DEVNAME} = sprintf("%03d/%03d", $busnum, $devnum);
} else {
warn "Bad USB transport='$transport' usbdev='$usbdev'\n";
}
}
@{$self->{XPDS}} = ();
opendir(D, $xbus_dir) || die "Failed opendir($xbus_dir): $!";
while(my $entry = readdir D) {
$entry =~ /^([0-9]+):([0-9]+):([0-9]+)$/ or next;
my ($busnum, $unit, $subunit) = ($1, $2, $3);
my $procdir = "/proc/xpp/XBUS-$busnum/XPD-$unit$subunit";
#print STDERR "busnum=$busnum, unit=$unit, subunit=$subunit procdir=$procdir\n";
my $xpd = Dahdi::Xpp::Xpd->new($self, $unit, $subunit, $procdir, "$xbus_dir/$entry");
push(@{$self->{XPDS}}, $xpd);
}
closedir D;
@{$self->{XPDS}} = sort { $a->id <=> $b->id } @{$self->{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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