On at least Lenovo Thinkpad E585 udev does not have ID_PATH property for
the drm node (see
https://gitlab.freedesktop.org/xorg/xserver/-/issues/993). While this is
likely udev bug, this causes the device to be not recognized as
attribs->busid is NULL, which causes platform_find_pci_info to be not
called and corresponding xf86_platform_devices[i]->pdev to be NULL.
At this moment pdev being NULL will cause a crash, but this is a
different bug.
Fixes: https://gitlab.freedesktop.org/xorg/xserver/-/issues/993
Fixes: 0816e8fc linux: Make platform device probe less fragile
Reviewed-by: Zoltán Böszörményi <zboszor@gmail.com>
Signed-off-by: Povilas Kanapickas <povilas@radix.lt>
The ID_PATH for a udl device looks like this:
$ udevadm info /dev/dri/card2 | grep -w ID_PATH
E: ID_PATH=pci-0000:00:14.0-usb-0:9.1:1.0
The parsing added in 0816e8fca6 ("linux: Make platform device probe
less fragile"), sets OdevAttributes::busid to "pci:0000:00:14.0", where
drmGetBusid() would have returned "3-9.1:1.0".
Identifying this as a "pci:*" device eventually causes the vendor/device
id check in probeSingleDevice() to fail, because a USB controller isn't
a supported device:
$ udevadm info --path=/devices/pci0000:00/0000:00:14.0 | grep -e VENDOR -e ID_PCI_CLASS
E: ID_PCI_CLASS_FROM_DATABASE=Serial bus controller
E: ID_VENDOR_FROM_DATABASE=Intel Corporation
Instead of parsing out "pci:0000:00:14.0" in this case, use
"usb:0:9.1:1.0" so the device probe will succeed.
Fixes: 0816e8fca6 ("linux: Make platform device probe less fragile")
Signed-off-by: Reza Arbab <arbab@linux.ibm.com>
On a DT-base PCI platform, the sysfs path of vga device is like this:
/sys/devices/platform/bus@10000000/1a000000.pci/pci0000:00/0000:00:11.0/0000:04:00.0.
Then the ID_PATH from udev is platform-1a000000.pci-pci-0000:04:00.0 and
the BusID will be pci-0000:04:00.0, which causes Xorg start fail. This
is because config_udev_odev_setup_attribs() use strstr() to search the
first "pci-" in ID_PATH. To fix this, we implement a strrstr() function
and use it to search the last "pci-" in ID_PATH, which can get a correct
BusID.
Signed-off-by: Huacai Chen <chenhc@lemote.com>
Suppose you're in a Hyper-V guest and are trying to use PCI passthrough.
The ID_PATH that udev will construct for that looks something like
"acpi-VMBUS:00-pci-b8c8:00:00.0", and obviously looking for "pci-" in
the first four characters of that is going to not work.
Instead, strstr. I suppose it's possible you could have _multiple_ PCI
buses in the path, in which case you'd want strrstr, if that were a
thing.
glibc 2.25 has dropped sys/sysmacros.h from sys/types.h, so add
it explicitly in config/udev.c.
This is similar to the commit 84e3b96b53
Signed-off-by: Manoj Gupta <manojgupta@chromium.org>
Reviewed-by: Adam Jackson <ajax@redhat.com>
At the point where xf86BusProbe runs we haven't yet taken our own VT,
which means we can't perform drm "master" operations on the device. This
is tragic, because we need master to fish the bus id string out of the
kernel, which we can only do after drmSetInterfaceVersion, which for
some reason stores that string on the device not the file handle and
thus needs master access.
Fortunately we know the format of the busid string, and it happens to
almost be the same as the ID_PATH variable from udev. Use that instead
and stop calling drmSetInterfaceVersion.
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Adam Jackson <ajax@redhat.com>
Erroneous condition caused us to keep going with all devices that didn't have
ID_INPUT set.
Fixes: 5aad81445c
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=104382
Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Historically we didn't need to care about this case but more devices are
having invalid types set and they cannot be unset with a hwdb entry (which
doesn't handle the empty string). Allow for "0" to mean "unset" because
anything else would be crazy anyway.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
This avoids having the server running inside libudev from two threads
at once, which it appears to not like.
Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
The tablet pads have been separate kernel devices for a while now and
libwacom has labelled them with the udev ID_INPUT_TABLET_PAD for over a year
now. Add a new MatchIsTabletPad directive to apply configuration options
specifically to the Pad part of a tablet.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Adam Jackson <ajax@redhat.com>
This patch introduces a new flag ATTR_KEY for hotplugged input devices,
so we can better distinguish between real keyboards (i.e. devices with
udev property ID_INPUT_KEYBOARD="1") and other key input devices like
lid switches, power buttons, etc.
All supported hotplug backends (udev, hal, and wscons) will set both
flags ATTR_KEY and ATTR_KEYBOARD for real keyboards, but udev backend
will set ATTR_KEY, but not ATTR_KEYBOARD, for non-keyboard key input
devices (hal and wscons will set both flags in any case). With this
distinction, kdrive input hotplugging mechanism will be allowed to only
grab real keyboards, as other key input devices are currently not
supported.
In order to don't break current behaviour, this patch will replace all
ATTR_KEYBOARD occurrences with ATTR_KEY in hw/xfree86/common/xf86Xinput.c.
[ajax: Just add ATTR_KEY, don't re-number the other attributes]
Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Laércio de Sousa <laerciosousa@sme-mogidascruzes.sp.gov.br>
This uses the NotifyFd interface to monitor the udev file descriptor
rather than adding another block/wakeup handler
Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Keith Packard <keithp@keithp.com>
Jonathan Dieter posted a few patches to do this inside the Xorg
server but it makes no sense to do it there, just have the code
we use to probe the device list at startup check seat assignments
using the same code we check at hotplug time.
Bugilla: https://bugzilla.redhat.com/show_bug.cgi?id=1183654
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Tested-by: Jonathan Dieter <jdieter@lesbg.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Keith Packard <keithp@keithp.com>
The message "removing GPU device ..." appeared even if the removal was
skipped (when path == NULL). Move it below the path check and make it a
LogMessage with config/udev prefix.
Signed-off-by: Daniel Martin <consume.noise@gmail.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Keith Packard <keithp@keithp.com>
OdevAttributes are a fixed set of values with known types; instead of
storing them in a linked list and requiring accessor/settor functions,
replace the list header, struct OdevAttributes, with a struct that
directly contains the values. This provides for compile-time
typechecking of the values, eliminates a significant amount of code
and generally simplifies using this datatype.
Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Note that there are more callers but those were already not doing any
error checking.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
The PnPID for a device may not be on the immediate parent, so search up the
device tree until we find one.
X.Org Bug 75513 <http://bugs.freedesktop.org/show_bug.cgi?id=75513>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Tested-by: Benjamin Tissoires <benjamin.tissoires@gmail.com>
Before this commit we were trying to add most drm devices twice, once
from xf86platformProbe() and once from config_udev_init().
This results in somewhat confusing messages in Xorg.log, ie:
(II) xfree86: Adding drm device (/dev/dri/card0)
Later followed by:
(II) config/udev: Adding drm device (/dev/dri/card0)
By filtering out duplicate drm devices we avoid these confusing messages.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Peter Hutterer <peter.hutterer@who-t.net>
This commits makes the changes necessary outside of the systemd-logind core
to make the server use systemd-logind managed fds for input devices and drm
nodes.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Introduced in fecc7eb1cf and reverts most of
that but it's helpfully mixed with other stuff.
InputAttributes are not const, they're strdup'd everywhere but the test code
and freed properly. Revert the const char changes and fix the test up instead.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
This lets us stop using the 'pointer' typedef in Xdefs.h as 'pointer'
is used throughout the X server for other things, and having duplicate
names generates compiler warnings.
Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
This patch contributes to fill the remaining gaps which make
systemd-multi-seat-x wrapper still necessary in some multiseat setups.
This also replaces previous evdev patch that does the same thing
for that particular driver.
When option "-seat" is passed with an argument different from "seat0",
option "GrabDevice" for input devices is enabled by default
(no need of enabling it in xorg.conf's "InputClass" section).
Fixes: https://bugs.freedesktop.org/show_bug.cgi?id=69478
Signed-off-by: Laércio de Sousa <lbsousajr@gmail.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
udev.c: In function 'device_removed':
udev.c:270:9: warning: format '%d' expects argument of type 'int', but argument 3 has type 'const char *' [-Wformat]
Signed-off-by: Aaron Plattner <aplattner@nvidia.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Keith Packard <keithp@keithp.com>
for input devices we handle change like remove/add, but for
drm devices we get change events when we hotplug outputs,
so lets just ignore change at this level, and let the drivers
handle it. We may in the future want to route driver udev
from here instead.
Reported-by: Timo Aaltonen <timo.aaltonen@canonical.com>
Reviewed-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This respects the seat tag for hotplugged video devices at X start.
Reviewed-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
this is a simple clean-up that is useful to stop further propogation
of this construct.
Reviewed-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Reviewed-by: Keith Packard <keithp@keithp.com>
Tested-by: Daniel Stone <daniel@fooishbar.org>
This adds callbacks into the ddx for udev gpu hotplug.
v2: fix some strncmp returns.
Reviewed-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
On Linux in order for future hotplug work, we are required to interface
to udev to detect device creation/removal. In order to try and get
some earlier testing on this, this patch adds the ability to use
udev for device enumeration on Linux.
At startup the list of drm/kms devices is probed and this info is
used to load drivers.
A new driver probing method is introduced that passes the udev
device info to the driver for probing.
The probing integrates with the pci probing code and will fallback
to the pci probe and old school probe functions in turn.
The flags parameter to the probe function will be used later
to provide hotplug and gpu screen flags for the driver to behave
in a different way.
This patch changes the driver ABI, all drivers should at least
be set with a NULL udev probe function after this commit.
v2: rename to platform bus, now with 100% less udev specific,
this version passes config_odev_attribs around which are an array
of id/string pairs, then the udev code can attach the set of attribs
it understands, the OS specific code can attach its attrib, and then
the core/drivers can lookup the required attribs.
also add MATCH_PCI_DEVICES macro.
This version is mainly to address concerns raised by ajax.
v3: Address comments from Peter.
fix whitespace that snuck in.
rework to use a linked list with some core functions that
xf86 wraps.
v4: add free list, fix struct whitespace.
ajax this address most of your issues?
v5: drop probe ifdef, fix logic issue
v6: some overhaul after more testing.
Implement primaryBus for platform devices.
document hotplug.h dev attribs - drop sysname attrib
fix build with udev kms disabled
make probing work like the PCI probe code,
match against bus id if one exists, or primary device.
RFC: add new bus id support "PLAT:syspath". we probably
want to match on this a bit different, or use a different
property maybe. I was mainly wanting this for use with
specifying usb devices in xorg.conf directly, but PLAT:path
could also work I suppose.
v6.1: add missing noop platform function
v7: fix two interactions with pci probing and slot claiming, prevents
pci and platform trying to load two drivers for same slot.
v8: test with zaphod mode on -ati driver, fixup resulting issue
clean up common probe code into another function, change busid
matching to allow dropping end of strings.
v9: fix platform probing logic so it actually works.
v9.1: fix pdev init to NULL properly.
v10: address most of Keith's concerns.
v4 was thanks to Reviewed-by: Adam Jackson <ajax@redhat.com>
v5 was Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
In order to use udev for gpu enumeration, we need to init udev earlier
than input initialisations. This splits the config init stuff so that udev
pre init sets up before output initialisation.
this is just a prepatory patch, doesn't change anything major.
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This is strictly the application of the script 'x-indent-all.sh'
from util/modular. Compared to the patch that Daniel posted in
January, I've added a few indent flags:
-bap
-psl
-T PrivatePtr
-T pmWait
-T _XFUNCPROTOBEGIN
-T _XFUNCPROTOEND
-T _X_EXPORT
The typedefs were needed to make the output of sdksyms.sh match the
previous output, otherwise, the code is formatted badly enough that
sdksyms.sh generates incorrect output.
The generated code was compared with the previous version and found to
be essentially identical -- "assert" line numbers and BUILD_TIME were
the only differences found.
The comparison was done with this script:
dir1=$1
dir2=$2
for dir in $dir1 $dir2; do
(cd $dir && find . -name '*.o' | while read file; do
dir=`dirname $file`
base=`basename $file .o`
dump=$dir/$base.dump
objdump -d $file > $dump
done)
done
find $dir1 -name '*.dump' | while read dump; do
otherdump=`echo $dump | sed "s;$dir1;$dir2;"`
diff -u $dump $otherdump
done
Signed-off-by: Keith Packard <keithp@keithp.com>
Acked-by: Daniel Stone <daniel@fooishbar.org>
Acked-by: Alan Coopersmith <alan.coopersmith@oracle.com>
udev_enumerate_add_match_tag() and udev_monitor_filter_add_match_tag()
are mostly optimizations, hence simply skip these calls if they are not
available in the installed version of libudev.
This should fix the build on older versions of udev.
[airlied: fixes tinderbox failures on RHEL6]
Signed-off-by: Lennart Poettering <lennart@poettering.net>
Reviewed-by: Dave Airlie <airlied@redhat.com>
Tested-by: Dave Airlie <airlied@redhat.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Keith Packard <keithp@keithp.com>
InputOptions is not switched to use struct list for a future patch to unify
it with the XF86OptionRec.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Dan Nicholson <dbn.lists@gmail.com>
_source was being allocated manually, with all other options added to that
list through add_option. Skip the manual part, allocate the first option
_source with add_option too.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Daniel Stone <daniel@fooishbar.org>
PRODUCT was taken from the parent, hence ppath.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Daniel Stone <daniel@fooishbar.org>
Add support for multi-seat-aware input device hotplugging. This
implements the multi-seat scheme explained here:
http://www.freedesktop.org/wiki/Software/systemd/multiseat
This introduces a new X server switch "-seat" which allows configuration
of the seat to enumerate hotplugging devices on. If specified the value
of this parameter will also be exported as root window property
Xorg_Seat.
To properly support input hotplugging devices need to be tagged in udev
according to the seat they are on. Untagged devices are assumed to be on
the default seat "seat0". If no "-seat" parameter is passed only devices
on "seat0" are used. This means that the new scheme is perfectly
compatible with existing setups which have no tagged input devices.
Note that the -seat switch takes a completely generic identifier, and
that it has no effect on non-Linux systems. In fact, on other OSes a
completely different identifier scheme for seats could be used but still
be exposed with the Xorg_Seat and -seat.
I tried to follow the coding style of the surrounding code blocks if
there was any one could follow.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
The nature of hotplug is that a device we enumerated might already be
gone by the time we look at it, so don't assume otherwise.
Signed-off-by: Lennart Poettering <lennart@poettering.net>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Don't enumerate/monitor all devices of the system (since that can be
quite a few), but limit our search to devices from the "input"
subsystem, as well as the "tty" subsystem (to cover Wacom tablets).
This should make X start up a bit faster and reduce the number of
unnecessary wake-ups of the X server.
Signed-off-by: Lennart Poettering <lennart@poettering.net>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
udev gives no guarantee that before each "changed" event for a device
there's an "add" event, or that before each "remove" is an "add", or
that before each "add" there was no "add" already and so on. Users can
trigger these events at any time with "udevadm trigger", and netlink is
a lossy transport, hence the events can come in unexpected ordering.
With other words: regardless which event is generated, the X server must
not choke on it and make the best of it, hence make sure that if we get
an "add" event for an existing device we don't add the device a second
time.
Signed-off-by: Lennart Poettering <lennart@poettering.net>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
wakeup_handler in udev.c wasn't dealing with udev change events.
There are situations when a device can gain its input capabilities
after it has been added to the system and therefore the change events
must be handled as well.
The change is handled as a consecutive device removal and addition.
Signed-off-by: Erkki Seppälä <erkki.seppala@vincit.fi>
Signed-off-by: Stefan Kost <Stefan.Kost@nokia.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
NewInputDeviceRequest steals the contents of option list elements but
doesn't use the elements themselves for anything. Therefore the list
elements need to be released always.
Signed-off-by: Rami Ylimäki <rami.ylimaki@vincit.fi>
Reviewed-by: Erkki Seppälä <erkki.seppala@vincit.fi>
Reviewed-by: Adam Jackson <ajax@redhat.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
RemoveBlockAndWakeupHandlers requires caller to pass same block data
parameter as for RegisterBlockAndWakeupHandlers.
Signed-off-by: Pauli Nieminen <ext-pauli.nieminen@nokia.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Daniel Stone <daniel@fooishbar.org>
InputAttributes wants non-const members, and while it appears safe to
cast it, just leave it be for the moment.
Signed-off-by: Daniel Stone <daniel@fooishbar.org>
Reviewed-by: Dan Nicholson <dbn.lists@gmail.com>
config_info is the only reliable indicator we have in the server for
duplicate devices (drivers can test for maj/min on fds as well). Don't set
this after the device has been initialized but assume it's important enough
to set during NIDR.
This makes the option "config_info" available to the drivers as well.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Adam Jackson <ajax@redhat.com>
Reviewed-by: Daniel Stone <daniel@fooishbar.org>
The udev device_added function takes the vendor and model IDs of added
devices and converts them into an attribute that can be matched for by
an InputClass configuration using MatchUSBID. Currently, the udev
mechanism works for USB devices, but fails to work properly for
Bluetooth devices. The product IDs of the event node are actually the
IDs of the Bluetooth receiver instead of the device.
This patch reads the product ID from the PRODUCT property of the parent
of the added device. This tag is set correctly for both USB and
Bluetooth input devices. The following devices have been tested by
specifying individual InputClass sections in xorg.conf:
* Apple Keyboard (Bluetooth)
* Apple Magic Trackpad (Bluetooth)
* Apple Magic Mouse (Bluetooth)
* Microsoft Bluetooth Notebook Mouse 5000 (Bluetooth)
* Microsoft IntelliMouse Optical (USB)
* N-Trig Touchscreen (USB)
* Wacom Bamboo Touch (USB)
Signed-off-by: Chase Douglas <chase.douglas@canonical.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Replace xstrdup with strdup when either constant string is
being duplicated or argument is guarded by conditionals and
obviously can't be NULL
Signed-off-by: Mikhail Gusarov <dottedmag@dottedmag.net>
Reviewed-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Povilas Kanapickas
Reza Arbab
Huacai Chen
Martin Weber
Adam Jackson
Manoj Gupta
Peter Hutterer
Keith Packard
Laércio de Sousa
Dave Airlie
Daniel Martin
Hans de Goede
Laércio de Sousa
Aaron Plattner
Dave Airlie
Alan Coopersmith
Lennart Poettering
Erkki Seppälä
Rami Ylimäki
Pauli Nieminen
Daniel Stone
Chase Douglas
Mikhail Gusarov