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refactor usb functions out of QemuServer.pm

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this moves most of the usb functionality into its own
module, making the QemuServer.pm smaller

Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
This commit is contained in:
Dominik Csapak 2016-06-14 10:50:36 +02:00 committed by Wolfgang Bumiller
parent de9768f002
commit de3d4ac4d4
2 changed files with 125 additions and 0 deletions
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1
PVE/QemuServer/Makefile
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@ -1,4 +1,5 @@
.PHONY: install
install:
install -D -m 0644 PCI.pm ${DESTDIR}${PERLDIR}/PVE/QemuServer/PCI.pm
install -D -m 0644 USB.pm ${DESTDIR}${PERLDIR}/PVE/QemuServer/USB.pm
install -D -m 0644 Memory.pm ${DESTDIR}${PERLDIR}/PVE/QemuServer/Memory.pm

124
PVE/QemuServer/USB.pm Normal file
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@ -0,0 +1,124 @@
package PVE::QemuServer::USB;
use strict;
use warnings;
use PVE::QemuServer::PCI qw(print_pci_addr);
use PVE::JSONSchema;
use base 'Exporter';
our @EXPORT_OK = qw(
parse_usb_device
get_usb_controllers
get_usb_devices
);
sub parse_usb_device {
my ($value) = @_;
return undef if !$value;
my $res = {};
if ($value =~ m/^(0x)?([0-9A-Fa-f]{4}):(0x)?([0-9A-Fa-f]{4})$/) {
$res->{vendorid} = $2;
$res->{productid} = $4;
} elsif ($value =~ m/^(\d+)\-(\d+(\.\d+)*)$/) {
$res->{hostbus} = $1;
$res->{hostport} = $2;
} elsif ($value =~ m/^spice$/i) {
$res->{spice} = 1;
} else {
return undef;
}
return $res;
}
sub get_usb_controllers {
my ($conf, $bridges, $isq35, $format, $max_usb_devices) = @_;
my $devices = [];
my $pciaddr = "";
if ($isq35) {
# the q35 chipset support native usb2, so we enable usb controller
# by default for this machine type
push @$devices, '-readconfig', '/usr/share/qemu-server/pve-q35.cfg';
} else {
$pciaddr = print_pci_addr("piix3", $bridges);
push @$devices, '-device', "piix3-usb-uhci,id=uhci$pciaddr.0x2";
my $use_usb2 = 0;
for (my $i = 0; $i < $max_usb_devices; $i++) {
next if !$conf->{"usb$i"};
my $d = eval { PVE::JSONSchema::parse_property_string($format,$conf->{"usb$i"}) };
next if !$d || $d->{usb3}; # do not add usb2 controller if we have only usb3 devices
$use_usb2 = 1;
}
# include usb device config
push @$devices, '-readconfig', '/usr/share/qemu-server/pve-usb.cfg' if $use_usb2;
}
# add usb3 controller if needed
my $use_usb3 = 0;
for (my $i = 0; $i < $max_usb_devices; $i++) {
next if !$conf->{"usb$i"};
my $d = eval { PVE::JSONSchema::parse_property_string($format,$conf->{"usb$i"}) };
next if !$d || !$d->{usb3};
$use_usb3 = 1;
}
$pciaddr = print_pci_addr("xhci", $bridges);
push @$devices, '-device', "nec-usb-xhci,id=xhci$pciaddr" if $use_usb3;
return @$devices;
}
sub get_usb_devices {
my ($conf, $format, $max_usb_devices) = @_;
my $devices = [];
for (my $i = 0; $i < $max_usb_devices; $i++) {
next if !$conf->{"usb$i"};
my $d = eval { PVE::JSONSchema::parse_property_string($format,$conf->{"usb$i"}) };
next if !$d;
if (defined($d->{host})) {
my $hostdevice = parse_usb_device($d->{host});
$hostdevice->{usb3} = $d->{usb3};
if (defined($hostdevice->{spice}) && $hostdevice->{spice}) {
# usb redir support for spice, currently no usb3
push @$devices, '-chardev', "spicevmc,id=usbredirchardev$i,name=usbredir";
push @$devices, '-device', "usb-redir,chardev=usbredirchardev$i,id=usbredirdev$i,bus=ehci.0";
} else {
push @$devices, '-device', print_usbdevice_full($conf, "usb$i", $hostdevice);
}
}
}
return @$devices;
}
sub print_usbdevice_full {
my ($conf, $deviceid, $device) = @_;
return if !$device;
my $usbdevice = "usb-host";
# if it is a usb3 device, attach it to the xhci controller, else omit the bus option
if($device->{usb3}) {
$usbdevice .= ",bus=xhci.0";
}
if (defined($device->{vendorid}) && defined($device->{productid})) {
$usbdevice .= ",vendorid=0x$device->{vendorid},productid=0x$device->{productid}";
} elsif (defined($device->{hostbus}) && defined($device->{hostport})) {
$usbdevice .= ",hostbus=$device->{hostbus},hostport=$device->{hostport}";
}
$usbdevice .= ",id=$deviceid";
return $usbdevice;
}
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