#! /usr/bin/perl -w
#
# 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 File::Basename;
use Getopt::Std;
BEGIN { my $dir = dirname($0); unshift(@INC, "$dir", "$dir/perl_modules"); }

use Dahdi;
use Dahdi::Span;
use Dahdi::Xpp;
use Dahdi::Xpp::Xbus;
use Dahdi::Hardware;
use Dahdi::Xpp::Mpp;

sub usage {
	die "Usage: $0 [-v][-x][-t]\n";
}

my %opts;
getopts('vxt', \%opts) || usage;
@ARGV == 0 or usage;

my @spans = Dahdi::spans;

sub show_xbus($) {
	my $xbus = shift or die;
	my @xpds = $xbus->xpds;
	my $label = '[' . $xbus->label() . ']';
	my $connector = ($xbus->status eq 'CONNECTED') ? $xbus->connector : "MISSING";
	printf " LABEL=%-20s CONNECTOR=%-20s\n", $label, $connector;
	foreach my $xpd (@xpds) {
		my $reg = $xpd->dahdi_registration;
		my $channels = '(' . $xpd->channels . ')';
		my $span;
		my $spanstr;
		if($reg && @spans) {
			($span) = grep { $_->name eq $xpd->fqn } @spans;
			$spanstr = ($span) ? ("Span " . $span->num) : "";
		} else {
			$spanstr = "Unregistered";
		}
		my $master = '';
		#$master = "XPP-SYNC" if $xpd->is_sync_master;
		$master .= " DAHDI-SYNC" if defined($span) && $span->is_dahdi_sync_master;
		printf "\t%-10s: %-8s %-5s %s %s\n", $xpd->fqn, $xpd->type, $channels, $spanstr, $master;
	}
}

my %seen;
my $format = "%-20s %-12s %4s:%4s %s\n";

sub show_disconnected(%) {
	my %seen = @_;

	my $notified_lost = 0;
	foreach my $xbus (Dahdi::Xpp::xbuses) {
		if(!$seen{$xbus->name}) {
			print "----------- XPP Spans with disconnected hardware -----------\n"
				unless $notified_lost++;
			printf($format, $xbus->name, '', '', '', "NO HARDWARE");
			show_xbus($xbus) if $opts{'v'};
		}
	}
}

# FIXME: For verbose display we also need to see the XPP devices.
# If no spans are registered, this won't happen. A brute-force
# method for making it happen:
Dahdi::Xpp::xbuses if ($opts{'v'});

my @devices = Dahdi::Hardware->device_list;
foreach my $dev (@devices) {
	my $driver = $dev->driver || "";
	my $xbus;
	my $loaded;
	my $tws_port;
	my $tws_power;
	my $tws_watchdog;
	my $mppinfo;
	if($dev->is_astribank) {
		$xbus = $dev->xbus;
		if($opts{'v'} || $opts{'t'}) {
			Dahdi::Xpp::Mpp->mpp_addinfo($dev);
			$mppinfo = $dev->mppinfo;
			if(defined $mppinfo) {
				$tws_port = $mppinfo->{TWINSTAR_PORT};
				$tws_power = $mppinfo->{TWINSTAR_POWER};
				$tws_watchdog = $mppinfo->{TWINSTAR_WATCHDOG};
			}
		}
	}
	$loaded = $dev->loaded;
	warn "driver should be '$driver' but is actually '$loaded'\n"
		if defined($loaded) && $driver ne $loaded;
	$driver = "$driver" . (($loaded) ? "+" : "-");
	if(defined $tws_power && defined $tws_watchdog) {
		my $tws_active = $tws_watchdog && $tws_power->[0] && $tws_power->[1];
		$driver .= "[T]" if $tws_active;
	}
	my $description = $dev->description || "";
	printf $format, $dev->hardware_name, $driver, $dev->vendor, $dev->product, $description;
	if($opts{'v'} && defined $mppinfo && exists $mppinfo->{MPP_TALK}) {
		printf " MPP: TWINSTAR_PORT=$tws_port\n" if defined $tws_port;
		printf " MPP: TWINSTAR_WATCHDOG=$tws_watchdog\n" if defined $tws_watchdog;
		for(my $i = 0; $i < 2; $i++) {
			printf " MPP: TWINSTAR_POWER[%d]=%d\n",
				$i, $tws_power->[$i] if defined $tws_power;
		}
	}
	if(!defined $xbus || !$xbus) {
		next;
	}
	$seen{$xbus->name} = 1;
	show_xbus($xbus) if $opts{'v'};
}

show_disconnected(%seen) if $opts{'x'};

__END__

=head1 NAME

dahdi_hardware - Shows Dahdi hardware devices. 

=head1 SYNOPSIS

dahdi_hardware [-v][-x]

=head1 OPTIONS

=over

=item -v

Verbose output - show spans used by each device etc. Currently only
implemented for the Xorcom Astribank.

=item -x

Show disconnected Astribank unit, if any.

=back

=head1 DESCRIPTION

Show all Dahdi hardware devices. Devices are recognized according to
lists of PCI and USB IDs in Dahdi::Hardware::PCI.pm and 
Dahdi::Hardware::USB.pm . For PCI it is possible to detect by
sub-vendor and sub-product ID as well.

The first output column is the connector: a bus specific field that
shows where this device is. 

The second field shows which driver should handle the device. a "-" sign
marks that the device is not yet handled by this driver. A "+" sign
means that the device is handled by the driver.

For the Xorcom Astribank (and in the future: for other Dahdi devices)
some further information is provided from the driver. Those extra lines
always begin with spaces.

Example output: 

Without drivers loaded:

  usb:001/002        xpp_usb-     e4e4:1152 Astribank-multi FPGA-firmware
  usb:001/003        xpp_usb-     e4e4:1152 Astribank-multi FPGA-firmware
  pci:0000:01:0b.0   wctdm-       e159:0001 Wildcard TDM400P REV H

With drivers loaded, without -v:
  usb:001/002        xpp_usb+     e4e4:1152 Astribank-multi FPGA-firmware
  usb:001/003        xpp_usb+     e4e4:1152 Astribank-multi FPGA-firmware
  pci:0000:01:0b.0   wctdm+       e159:0001  Wildcard TDM400P REV E/F

With drivers loaded, with -v:
  usb:001/002        xpp_usb+     e4e4:1152 Astribank-multi FPGA-firmware
   LABEL=[usb:123] CONNECTOR=usb-0000:00:1d.7-1  
          XBUS-00/XPD-00: FXS      Span 2 
          XBUS-00/XPD-10: FXS      Span 3 
          XBUS-00/XPD-20: FXS      Span 4 
          XBUS-00/XPD-30: FXS      Span 5 
  usb:001/003        xpp_usb+     e4e4:1152 Astribank-multi FPGA-firmware
   LABEL=[usb:4567] CONNECTOR=usb-0000:00:1d.7-4  
          XBUS-01/XPD-00: FXS      Span 6 XPP-SYNC
          XBUS-01/XPD-10: FXO      Span 7 
          XBUS-01/XPD-20: FXO      Span 8 
          XBUS-01/XPD-30: FXO      Span 9 
  pci:0000:01:0b.0   wctdm+       e159:0001  Wildcard TDM400P REV E/F