| Commit message (Collapse) | Author | Age |
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Bamboo models do not support HID_DG_CONTACTMAX. Plus, Bamboo pen-only
has touch descriptor. This leads to some complications in the code.
This patch also fixes duplicated PAD interfeaces for Intuos Pen
models.
Signed-off-by: Ping Cheng <pingc@wacom.com>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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Graphire 4 only has two tablet buttons; Bamboo Fun touch ring is only
for PAD.
Signed-off-by: Ping Cheng <pingc@wacom.com>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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ENODEV indicates no device is added. Hence, the associated pad input device
is simply freed.
Signed-off-by: Ping Cheng <pingc@wacom.com>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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Signed-off-by: Ping Cheng <pingc@wacom.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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touch_input is stored in wacom_shared for pen data to report touch
switch status. It is possible, although we didn't see it happen on
Linux yet, that pen data is procesed before touch interface is
fully probed.
As a by-product of this patch, it fixes the FreeBSD issue reported
by Denis Akiyakov http://www.spinics.net/lists/linux-input/msg33971.html
Reviewed-by: Hans Petter Selasky <hps@selasky.org>
Tested-by: Denis Akiyakov <d.akiyakov@gmail.com>
Signed-off-by: Ping Cheng <pingc@wacom.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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Add vid/pid for the SMK branded third-party PS3 Bluetooth remote and enable
support in the hid-sony driver.
Signed-off-by: Frank Praznik <frank.praznik@oh.rr.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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Replace stack buffers with kernel allocated buffers for sending
and receiving HID reports to prevent issues with DMA transfers
on certain hardware.
Output report buffers are allocated at initialization time to avoid
excessive calls to kmalloc and kfree.
Link: https://bugzilla.kernel.org/show_bug.cgi?id=87991
Signed-off-by: Frank Praznik <frank.praznik@oh.rr.com>
Reviewed-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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registers are present
If a touchpad does not report relative data then query 6 will not be present and the address
of query 8 will be one less. This patches calculates the location of query 8 instead of
hardcoding the offset.
Signed-off-by: Andrew Duggan <aduggan@synaptics.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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If a touchpad reports the F11 data40 register then this indicates that the touchpad reports
additional ACM (Accidental Contact Mitigation) data after the F11 data in the HID attention
report. These additional bytes shift the position of the F30 button data causing the driver
to incorrectly report button state when this functionality is present. This patch accounts
for the additional data in the report.
Fixes:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1398533
Signed-off-by: Andrew Duggan <aduggan@synaptics.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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Remove redundanct probe() callback, as it isn't doing anything extra
that HID core wouldn't do by default.
Reported-by: Benjamin Tissoires <benjamin.tissoires@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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This version of the driver prevents Telephony pages which are not mapped as
Consumer Control applications AND are not on the Consumer Page from being
registered by the hid-input driver.
Signed-off-by: JD Cole <jd.cole@plantronics.com>
Reviewed-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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Surface Pro 3 Type Cover that works with Ubuntu (and possibly Arch) from this thread. Both trackpad and keyboard work after compiling my own kernel.
http://ubuntuforums.org/showthread.php?t=2231207&page=2&s=44910e0c56047e4f93dfd9fea58121ef
Also includes Jarrad Whitaker's message which sources
http://winaero.com/blog/how-to-install-linux-on-surface-pro-3/
which he says is sourced from a Russian site
Signed-off-by: Alan Wu <alan.c.wu@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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Balance a hid_device_io_start() call with hid_device_io_stop() in the
error path. This avoids processing of HID reports when the probe fails
which possibly leads to invalid memory access in hid_device_probe() as
report_enum->report_id_hash might already be freed via
hid_close_report().
hid_set_drvdata() is called before wtp_allocate, be consistent and clear
drvdata too on the error path of wtp_allocate.
Signed-off-by: Peter Wu <peter@lekensteyn.nl>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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The HID response has a limited size. Do not trust the value returned by
hardware, check that it really fits in the message.
Signed-off-by: Peter Wu <peter@lekensteyn.nl>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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hidpp_devicenametype_get_device_name() may return a negative value on
protocol errors (for example, when the device is powered off).
Explicitly check this condition to avoid a long-running loop.
(0 cannot be returned as __name_length - index > 0, but check for it
anyway as it would otherwise result in an infinite loop.)
Signed-off-by: Peter Wu <peter@lekensteyn.nl>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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We do not make any use of the actual name length get through
hidpp_get_device_name(). Original patch by Benjamin Tissoires, this
patch also replaces a (now) unnecessary goto by return NULL.
Signed-off-by: Peter Wu <peter@lekensteyn.nl>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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- remove the constant '1'
- when the device is not connected, the protocol error
HIDPP_ERROR_RESOURCE_ERROR is raised. We should not warn the user about
it because it is somewhat expected as an answer when we check if the
device is connected.
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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Reported by Dan Carpenter:
drivers/hid/hid-logitech-hidpp.c:359 hidpp_root_get_protocol_version() warn: should this return really be negated?
drivers/hid/hid-logitech-hidpp.c:398 hidpp_devicenametype_get_count() warn: should this return really be negated?
drivers/hid/hid-logitech-hidpp.c:417 hidpp_devicenametype_get_device_name() warn: should this return really be negated?
drivers/hid/hid-logitech-hidpp.c:524 hidpp_touchpad_get_raw_info() warn: should this return really be negated?
The problem lies in hidpp_send_message_sync() which can return 2 types of
errors depending of their sign. Adding a comment there to clarify what is
happening.
To solve that, print an error in case of a protocol problem, and raise
-EPROTO instead.
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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Shift the allocation down a few lines to avoid a memory leak and also
add a check for allocation failure.
Fixes: 2f31c5252910 ('HID: Introduce hidpp, a module to handle Logitech hid++ devices')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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The TK820 presents both a keyboard and a touchpad on the same
physical (and logical device). Use the generic hid-input
processing for the keyboard part. The keyboard input device is created
when the receiver is plugged in, so no events are missed on connect.
When the device actaully connects, we can set it to use the raw
multitouch reporting to have a consistent user experience accross
all Logitech touchpads.
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Tested-by: Andrew de los Reyes <adlr@chromium.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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This touchpad differs from the T650 in several ways:
- the resolution is not correctly returned by the device
- it presents physical buttons, so the button flag in the raw touch report
is not filled.
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Tested-by: Andrew de los Reyes <adlr@chromium.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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All the bits are now in place to add the support of the
Touchpad T650.
The creation/population of the input device is delayed until
the device is ready.
The T650 uses the special HID++ reporting protocol, so activate
this on connect.
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Tested-by: Andrew de los Reyes <adlr@chromium.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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Now that the receiver forwards the connect/disconnect events, we can
know when the device is available to communicate with us.
When it is ready, we can for instance retrieve its full name, which
guarantee that we always have the same name for the DJ device (the DJ
name is somewhat shorter than the HID++ name).
This mechanism is mandatory for the touchpads line, which has the
min/max information stored in the device. This information can only
be retrieved when the device is connected. So we can not populate
the input device until we are sure that the device is connected.
This patch creates a new input device for such devices. However,
this input is not bound to hid directly, so the various drivers
which wants to use it are required to process completely the
incoming reports in .raw_event().
Note that the patch in itself just adds the bits for the next
ones, and this feature is disabled by default.
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Tested-by: Andrew de los Reyes <adlr@chromium.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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The receiver can send HID++ notifications to the DJ devices when the
physical devices are connected/disconnected.
Enable this feature by default.
This command uses a HID++ command instead of a DJ one, so use a direct
call to usbhid instead of using logi_dj_recv_send_report()
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Tested-by: Andrew de los Reyes <adlr@chromium.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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The names of the DJ devices are stored in the receiver. These names
can be retrieved through a HID++ command. However, the protocol says
that you have to ask the receiver for that, not the device iteself.
Introduce a special case in the DJ handling where a device can request
its unifying name, and when such a name is given, forward it also to
the corresponding device.
On the HID++ side, the receiver talks only HID++ 1.0, so we need to
implement this part of the protocol in the module.
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Tested-by: Andrew de los Reyes <adlr@chromium.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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HID++ is a Logitech-specific protocol for communicating with HID
devices. DJ devices implement HID++, and so we can add the HID++
collection in the report descriptor and forward the incoming
reports from the receiver to the appropriate DJ device.
The same can be done in the other way, if someone calls a
.raw_request(), we can forward it to the correct dj device
by overriding the device_index in the HID++ report.
Signed-off-by: Benjamin Tisssoires <benjamin.tissoires@redhat.com>
Tested-by: Andrew de los Reyes <adlr@chromium.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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Devices connected through the Logitech Wireless Receiver are HID++ devices.
We can handle them here to benefit from this new module and activate
enhaced support of the various wireless touchpad or mice with touch
sensors on them.
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Tested-by: Andrew de los Reyes <adlr@chromium.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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Logitech devices use a vendor protocol to communicate various
information with the device. This protocol is called HID++,
and an exerpt can be found here:
https://drive.google.com/folderview?id=0BxbRzx7vEV7eWmgwazJ3NUFfQ28&usp=shar
The main difficulty which is related to this protocol is that
it is a synchronous protocol using the input reports.
So when we want to get some information from the device, we need
to wait for a matching input report.
This driver introduce this capabilities to be able to support
the multitouch mode of the Logitech Wireless Touchpad T651
(the bluetooth one). The multitouch data is available directly
from the mouse input reports, and we just need to query the device
on connect about its caracteristics.
HID++ and the touchpad features has a specific reporting mode
which uses pure HID++ reports, but Logitech told us not to use
it for this specific device. During QA, they detected that
some bluetooth input reports where lost, and so the only supported
mode is the pointer mode.
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Tested-by: Andrew de los Reyes <adlr@chromium.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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There is no point in keeping the header in a separate file, nobody
but hid-logitech-dj should have access to its content.
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Tested-by: Andrew de los Reyes <adlr@chromium.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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Several benefits here:
- we can drop the macro is_dj_device: I never been really conviced by
this macro as we could fall into a null pointer anytime. Anyway time
showed that this never happened.
- we can simplify the hid driver logitech-djdevice, and make it aware
of any new receiver VID/PID.
- we can use the Wireless PID of the DJ device as the product id of the
hid device, this way the sysfs will differentiate between different
DJ devices.
Signed-off-by: Benjamin Tisssoires <benjamin.tissoires@redhat.com>
Tested-by: Andrew de los Reyes <adlr@chromium.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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On the USB keyboard, the VENDOR hotkeys share the same device as the
mouse. Setting EV_REP also affects mouse buttons, so leave it off.
The bluetooth keyboard still has autorepeating mouse buttons, as it
only has one device and is set by the KEYBOARD pages.
Signed-off-by: Jamie Lentin <jm@lentin.co.uk>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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The bluetooth keyboard also generates 0x00fa when the middle button is
pressed. Move the made-up report out of the way so we don't trigger
KEY_FILE when middle button is pressed
Signed-off-by: Jamie Lentin <jm@lentin.co.uk>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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Current driver uses a common buffer for reading reports either
synchronously in i2c_hid_get_raw_report() and asynchronously in
the interrupt handler.
There is race condition if an interrupt arrives immediately after
the report is received in i2c_hid_get_raw_report(); the common
buffer is modified by the interrupt handler with the new report
and then i2c_hid_get_raw_report() proceed using wrong data.
Fix it by using a separate buffers for synchronous reports.
Signed-off-by: Jean-Baptiste Maneyrol <jmaneyrol@invensense.com>
[Antonio Borneo: cleanup, rebase to v3.17, submit mainline]
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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Report is received in "buffer"; fix the following i2c_hid_dbg()
to dump data from the correct pointer.
Signed-off-by: Jean-Baptiste Maneyrol <jmaneyrol@invensense.com>
[Antonio Borneo: cleanup and rebase to v3.17]
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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In several hid drivers it is necessary to calculate the length of an
hid_report. This patch exports the existing static function hid_report_len of
hid-core.c as an inline function in hid.h
Signed-off-by: Mathieu Magnaudet <mathieu.magnaudet@enac.fr>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@gmail.com>
Reviewed-by: David Herrmann <dh.herrmann@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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VTL panels do not switch to the multitouch mode until the input mode
feature is read by the host. This should normally be done by
usbhid, but it looks like an other bug prevents usbhid to properly
retrieve the feature state. As a workaround, we force the reading of
the feature in mt_set_input_mode for such devices.
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Mathieu Magnaudet <mathieu.magnaudet@enac.fr>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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Conflicts:
drivers/hid/hid-input.c
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I have tested HID quirk for Saitek R.A.T.7 with my R.A.T. 9. It works fine for
me. Attached patch makes the necessary changes to use the quirk on the R.A.T.9
too, and necessary Kconfig changes too.
I have stylized the Kconfig option name to include Mad Catz in the option name,
as (at least some of) the devices are marketed under Mad Catz brand.
Signed-off-by: Ville Aakko <ville.aakko@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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Missing whitespace, semi-colon after macro, and a duplicated out of
memory message.
Signed-off-by: Hans Duedal <hans.duedal@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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When events occurs while no one is listening to the node (hid->open == 0
and usb_kill_urb() called) some events are still stacked somewhere in
the USB (kernel or device?) stack. When the node gets reopened, these
events are drained, and this results in spurious touch down/up, or mouse
button clicks.
The problem was spotted with touchscreens in fdo bug #81781 [1], but it
actually occurs with any mouse using hid-generic or touchscreen.
A way to reproduce it is to call:
$ xinput disable 9 ; sleep 5 ; xinput enable 9
With 9 being the device ID for the touchscreen/mouse. During the "sleep",
produce some touch events or click events. When "xinput enable" is called,
at least one click is generated.
This patch tries to fix this by draining the queue for 50 msec and
during this time frame, not forwarding these old events to the hid layer.
Hans completed the explanation:
"""
Devices like mice (basically any hid device) will have a fifo
on the device side, when we stop submitting urbs to get hid reports from
it, that fifo will fill up, and when we resume we will get whatever
is there in that fifo.
"""
[1] https://bugs.freedesktop.org/show_bug.cgi?id=81781
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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This allows the transport layer (I have in mind hid-logitech-dj and uhid)
to set the group before it is added to the hid bus. This way, it can
bypass the hid_scan_report() call, and choose in advance which driver
will handle the newly created hid device.
Signed-off-by: Benjamin Tisssoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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While merging wacom from the input to the hid tree, some
comments have been duplicated. We can also integrate the
test for Synaptics devices in the switch case below, so
it is clear that there will be only one place for such
quirks.
No functional changes are expected in this commit.
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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Currently unknown consumer page codes are ignored, which means that they cannot
later be mapped from userspace using udev / hwdb. Map them to KEY_UNKNOWN, so
that userspace can remap them for keyboards which make up their own consumer
page codes.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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Before ->start() is called, bufsize size is set to HID_MIN_BUFFER_SIZE,
64 bytes. While processing the IRQ, we were asking to receive up to
wMaxInputLength bytes, which can be bigger than 64 bytes.
Later, when ->start is run, a proper bufsize will be calculated.
Given wMaxInputLength is said to be unreliable in other part of the
code, set to receive only what we can even if it results in truncated
reports.
Signed-off-by: Gwendal Grignou <gwendal@chromium.org>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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Since the conversion from USB to HID (in v3.17), some people reported a
freeze on boot with the wacom driver. Hans managed to get a stacktrace:
[ 240.272331] Call Trace:
[ 240.272338] [<ffffffff813de7b9>] ? usb_hcd_submit_urb+0xa9/0xb10
[ 240.272347] [<ffffffff81555579>] schedule+0x29/0x70
[ 240.272355] [<ffffffff815559e6>] schedule_preempt_disabled+0x16/0x20
[ 240.272363] [<ffffffff81557365>] __mutex_lock_slowpath+0xe5/0x230
[ 240.272372] [<ffffffff815574c7>] mutex_lock+0x17/0x30
[ 240.272380] [<ffffffffa063c1d2>] wacom_resume+0x22/0x50 [wacom]
[ 240.272396] [<ffffffffa01aea8a>] hid_resume_common+0xba/0x110 [usbhid]
[ 240.272404] [<ffffffff813e5890>] ? usb_runtime_suspend+0x80/0x80
[ 240.272417] [<ffffffffa01aeb1d>] hid_resume+0x3d/0x70 [usbhid]
[ 240.272425] [<ffffffff813e44a6>] usb_resume_interface.isra.6+0xb6/0x120
[ 240.272432] [<ffffffff813e4774>] usb_resume_both+0x74/0x140
[ 240.272439] [<ffffffff813e58aa>] usb_runtime_resume+0x1a/0x20
[ 240.272446] [<ffffffff813b1912>] __rpm_callback+0x32/0x70
[ 240.272453] [<ffffffff813b1976>] rpm_callback+0x26/0xa0
[ 240.272460] [<ffffffff813b2d71>] rpm_resume+0x4b1/0x690
[ 240.272468] [<ffffffff812ab992>] ? radix_tree_lookup_slot+0x22/0x50
[ 240.272475] [<ffffffff813b2c1a>] rpm_resume+0x35a/0x690
[ 240.272482] [<ffffffff8116e9c9>] ? zone_statistics+0x89/0xa0
[ 240.272489] [<ffffffff813b2f90>] __pm_runtime_resume+0x40/0x60
[ 240.272497] [<ffffffff813e4272>] usb_autopm_get_interface+0x22/0x60
[ 240.272509] [<ffffffffa01ae8d9>] usbhid_open+0x59/0xe0 [usbhid]
[ 240.272517] [<ffffffffa063ac85>] wacom_open+0x35/0x50 [wacom]
[ 240.272525] [<ffffffff813f37b9>] input_open_device+0x79/0xa0
[ 240.272534] [<ffffffffa048d1c1>] evdev_open+0x1b1/0x200 [evdev]
[ 240.272543] [<ffffffff811c899e>] chrdev_open+0xae/0x1f0
[ 240.272549] [<ffffffff811c88f0>] ? cdev_put+0x30/0x30
[ 240.272556] [<ffffffff811c17e2>] do_dentry_open+0x1d2/0x320
[ 240.272562] [<ffffffff811c1cd1>] finish_open+0x31/0x50
[ 240.272571] [<ffffffff811d2202>] do_last.isra.36+0x652/0xe50
[ 240.272579] [<ffffffff811d2ac7>] path_openat+0xc7/0x6f0
[ 240.272586] [<ffffffff811cf012>] ? final_putname+0x22/0x50
[ 240.272594] [<ffffffff811d42d2>] ? user_path_at_empty+0x72/0xd0
[ 240.272602] [<ffffffff811d43fd>] do_filp_open+0x4d/0xc0
[...]
So here, wacom_open is called, and then wacom_resume is called by the
PM system. However, wacom_open already took the lock when wacom_resume
tries to get it. Freeze.
A little bit of history shows that this already happened in the past
- commit f6cd378372bf ("Input: wacom - fix runtime PM related deadlock"),
and the solution was to call first the PM function before taking the lock.
The lock was introduced in commit commit e722409445fb ("Input: wacom -
implement suspend and autosuspend") when the autosuspend feature has
been added. Given that usbhid already takes care of this very same
locking between suspend/resume, I think we can simply kill the lock
in open/close.
The lock is now used also with LEDs, so we can not remove it completely.
Reported-by: Hans Spath <inbox-546@hans-spath.de>
Tested-by: Hans Spath <inbox-546@hans-spath.de>
CC: stable@vger.kernel.org # v3.17+
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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Dropped in the following commit:
commit a3e6f6543d19 ("Input: wacom - keep wacom_ids ordered")
Reported-by: Hans Spath <inbox-546@hans-spath.de>
CC: stable@vger.kernel.org # v3.17+
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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The touchscreen needs the same quirk as the other models.
Signed-off-by: Oliver Neukum <oneukum@suse.de>
Reported-by: Bryan Poling <poli0048@umn.edu>
CC: stable@vger.kernel.org
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI and power management updates from Rafael Wysocki:
"This time we have some more new material than we used to have during
the last couple of development cycles.
The most important part of it to me is the introduction of a unified
interface for accessing device properties provided by platform
firmware. It works with Device Trees and ACPI in a uniform way and
drivers using it need not worry about where the properties come from
as long as the platform firmware (either DT or ACPI) makes them
available. It covers both devices and "bare" device node objects
without struct device representation as that turns out to be necessary
in some cases. This has been in the works for quite a few months (and
development cycles) and has been approved by all of the relevant
maintainers.
On top of that, some drivers are switched over to the new interface
(at25, leds-gpio, gpio_keys_polled) and some additional changes are
made to the core GPIO subsystem to allow device drivers to manipulate
GPIOs in the "canonical" way on platforms that provide GPIO
information in their ACPI tables, but don't assign names to GPIO lines
(in which case the driver needs to do that on the basis of what it
knows about the device in question). That also has been approved by
the GPIO core maintainers and the rfkill driver is now going to use
it.
Second is support for hardware P-states in the intel_pstate driver.
It uses CPUID to detect whether or not the feature is supported by the
processor in which case it will be enabled by default. However, it
can be disabled entirely from the kernel command line if necessary.
Next is support for a platform firmware interface based on ACPI
operation regions used by the PMIC (Power Management Integrated
Circuit) chips on the Intel Baytrail-T and Baytrail-T-CR platforms.
That interface is used for manipulating power resources and for
thermal management: sensor temperature reporting, trip point setting
and so on.
Also the ACPI core is now going to support the _DEP configuration
information in a limited way. Basically, _DEP it supposed to reflect
off-the-hierarchy dependencies between devices which may be very
indirect, like when AML for one device accesses locations in an
operation region handled by another device's driver (usually, the
device depended on this way is a serial bus or GPIO controller). The
support added this time is sufficient to make the ACPI battery driver
work on Asus T100A, but it is general enough to be able to cover some
other use cases in the future.
Finally, we have a new cpufreq driver for the Loongson1B processor.
In addition to the above, there are fixes and cleanups all over the
place as usual and a traditional ACPICA update to a recent upstream
release.
As far as the fixes go, the ACPI LPSS (Low-power Subsystem) driver for
Intel platforms should be able to handle power management of the DMA
engine correctly, the cpufreq-dt driver should interact with the
thermal subsystem in a better way and the ACPI backlight driver should
handle some more corner cases, among other things.
On top of the ACPICA update there are fixes for race conditions in the
ACPICA's interrupt handling code which might lead to some random and
strange looking failures on some systems.
In the cleanups department the most visible part is the series of
commits targeted at getting rid of the CONFIG_PM_RUNTIME configuration
option. That was triggered by a discussion regarding the generic
power domains code during which we realized that trying to support
certain combinations of PM config options was painful and not really
worth it, because nobody would use them in production anyway. For
this reason, we decided to make CONFIG_PM_SLEEP select
CONFIG_PM_RUNTIME and that lead to the conclusion that the latter
became redundant and CONFIG_PM could be used instead of it. The
material here makes that replacement in a major part of the tree, but
there will be at least one more batch of that in the second part of
the merge window.
Specifics:
- Support for retrieving device properties information from ACPI _DSD
device configuration objects and a unified device properties
interface for device drivers (and subsystems) on top of that. As
stated above, this works with Device Trees and ACPI and allows
device drivers to be written in a platform firmware (DT or ACPI)
agnostic way. The at25, leds-gpio and gpio_keys_polled drivers are
now going to use this new interface and the GPIO subsystem is
additionally modified to allow device drivers to assign names to
GPIO resources returned by ACPI _CRS objects (in case _DSD is not
present or does not provide the expected data). The changes in
this set are mostly from Mika Westerberg, Rafael J Wysocki, Aaron
Lu, and Darren Hart with some fixes from others (Fabio Estevam,
Geert Uytterhoeven).
- Support for Hardware Managed Performance States (HWP) as described
in Volume 3, section 14.4, of the Intel SDM in the intel_pstate
driver. CPUID is used to detect whether or not the feature is
supported by the processor. If supported, it will be enabled
automatically unless the intel_pstate=no_hwp switch is present in
the kernel command line. From Dirk Brandewie.
- New Intel Broadwell-H ID for intel_pstate (Dirk Brandewie).
- Support for firmware interface based on ACPI operation regions used
by the PMIC chips on the Intel Baytrail-T and Baytrail-T-CR
platforms for power resource control and thermal management (Aaron
Lu).
- Limited support for retrieving off-the-hierarchy dependencies
between devices from ACPI _DEP device configuration objects and
deferred probing support for the ACPI battery driver based on the
_DEP information to make that driver work on Asus T100A (Lan
Tianyu).
- New cpufreq driver for the Loongson1B processor (Kelvin Cheung).
- ACPICA update to upstream revision 20141107 which only affects
tools (Bob Moore).
- Fixes for race conditions in the ACPICA's interrupt handling code
and in the ACPI code related to system suspend and resume (Lv Zheng
and Rafael J Wysocki).
- ACPI core fix for an RCU-related issue in the ioremap() regions
management code that slowed down significantly after CPUs had been
allowed to enter idle states even if they'd had RCU callbakcs
queued and triggered some problems in certain proprietary graphics
driver (and elsewhere). The fix replaces synchronize_rcu() in that
code with synchronize_rcu_expedited() which makes the issue go
away. From Konstantin Khlebnikov.
- ACPI LPSS (Low-Power Subsystem) driver fix to handle power
management of the DMA engine included into the LPSS correctly. The
problem is that the DMA engine doesn't have ACPI PM support of its
own and it simply is turned off when the last LPSS device having
ACPI PM support goes into D3cold. To work around that, the PM
domain used by the ACPI LPSS driver is redesigned so at least one
device with ACPI PM support will be on as long as the DMA engine is
in use. From Andy Shevchenko.
- ACPI backlight driver fix to avoid using it on "Win8-compatible"
systems where it doesn't work and where it was used by default by
mistake (Aaron Lu).
- Assorted minor ACPI core fixes and cleanups from Tomasz Nowicki,
Sudeep Holla, Huang Rui, Hanjun Guo, Fabian Frederick, and Ashwin
Chaugule (mostly related to the upcoming ARM64 support).
- Intel RAPL (Running Average Power Limit) power capping driver fixes
and improvements including new processor IDs (Jacob Pan).
- Generic power domains modification to power up domains after
attaching devices to them to meet the expectations of device
drivers and bus types assuming devices to be accessible at probe
time (Ulf Hansson).
- Preliminary support for controlling device clocks from the generic
power domains core code and modifications of the ARM/shmobile
platform to use that feature (Ulf Hansson).
- Assorted minor fixes and cleanups of the generic power domains core
code (Ulf Hansson, Geert Uytterhoeven).
- Assorted minor fixes and cleanups of the device clocks control code
in the PM core (Geert Uytterhoeven, Grygorii Strashko).
- Consolidation of device power management Kconfig options by making
CONFIG_PM_SLEEP select CONFIG_PM_RUNTIME and removing the latter
which is now redundant (Rafael J Wysocki and Kevin Hilman). That
is the first batch of the changes needed for this purpose.
- Core device runtime power management support code cleanup related
to the execution of callbacks (Andrzej Hajda).
- cpuidle ARM support improvements (Lorenzo Pieralisi).
- cpuidle cleanup related to the CPUIDLE_FLAG_TIME_VALID flag and a
new MAINTAINERS entry for ARM Exynos cpuidle (Daniel Lezcano and
Bartlomiej Zolnierkiewicz).
- New cpufreq driver callback (->ready) to be executed when the
cpufreq core is ready to use a given policy object and cpufreq-dt
driver modification to use that callback for cooling device
registration (Viresh Kumar).
- cpufreq core fixes and cleanups (Viresh Kumar, Vince Hsu, James
Geboski, Tomeu Vizoso).
- Assorted fixes and cleanups in the cpufreq-pcc, intel_pstate,
cpufreq-dt, pxa2xx cpufreq drivers (Lenny Szubowicz, Ethan Zhao,
Stefan Wahren, Petr Cvek).
- OPP (Operating Performance Points) framework modification to allow
OPPs to be removed too and update of a few cpufreq drivers
(cpufreq-dt, exynos5440, imx6q, cpufreq) to remove OPPs (added
during initialization) on driver removal (Viresh Kumar).
- Hibernation core fixes and cleanups (Tina Ruchandani and Markus
Elfring).
- PM Kconfig fix related to CPU power management (Pankaj Dubey).
- cpupower tool fix (Prarit Bhargava)"
* tag 'pm+acpi-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (120 commits)
i2c-omap / PM: Drop CONFIG_PM_RUNTIME from i2c-omap.c
dmaengine / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM
tools: cpupower: fix return checks for sysfs_get_idlestate_count()
drivers: sh / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM
e1000e / igb / PM: Eliminate CONFIG_PM_RUNTIME
MMC / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM
MFD / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM
misc / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM
media / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM
input / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM
leds: leds-gpio: Fix multiple instances registration without 'label' property
iio / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM
hsi / OMAP / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM
i2c-hid / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM
drm / exynos / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM
gpio / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM
hwrandom / exynos / PM: Use CONFIG_PM in #ifdef
block / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM
USB / PM: Drop CONFIG_PM_RUNTIME from the USB core
PM: Merge the SET*_RUNTIME_PM_OPS() macros
...
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After commit b2b49ccbdd54 (PM: Kconfig: Set PM_RUNTIME if PM_SLEEP is
selected) PM_RUNTIME is always set if PM is set, so #ifdef blocks
depending on CONFIG_PM_RUNTIME may now be changed to depend on
CONFIG_PM.
Replace CONFIG_PM_RUNTIME with CONFIG_PM in drivers/hid/i2c-hid/i2c-hid.c.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Jiri Kosina <jkosina@suse.cz>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd
Pull MFD updates from Lee Jones:
"Changes to the core:
- Honour PLATFORM_DEVID_NONE and PLATFORM_DEVID_AUTO dev IDs
Changes to existing drivers:
- IRQ additions/fixes; axp20x, da9063-core
- Code simplification; i2c-dln2
- Regmap additions/fixes; max77693
- Error checking/handling improvements; dln2, db8500-prcmu
- Bug fixes; dln2, wm8350-core
- DT support/documentation; max77693, max77686, tps65217, twl4030-power,
gpio-tc3589x
- Decouple syscon interface from platform devices
- Use MFD hotplug registration; rtsx_usb, viperboard, hid-sensor-hub
- Regulator fixups; sec-core
- Power Management additions/fixes; rts5227, tc6393xb
- Remove relic/redundant code; ab8500-sysctrl, lpc_sch, max77693-private
- Clean-up/coding style changes; tps65090
- Clk additions/fixes; tc6393xb, tc6387xb, t7l66xb
- Add USB-SPI support; dln2
- Trivial changes; max14577, arizona-spi, lpc_sch, wm8997-tables, wm5102-tables
wm5110-tables, axp20x, atmel-hlcdc, rtsx_pci
New drivers/supported devices:
- axp288 PMIC support added to axp20x
- s2mps13 support added to sec-core
- New support for Diolan DLN-2
- New support for atmel-hlcdc"
* tag 'mfd-for-linus-3.19' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (55 commits)
mfd: rtsx: Add func to split u32 into register
mfd: atmel-hlcdc: Add Kconfig option description and name
mfd: da9063: Get irq base dynamically before registering device
mfd: max14577: Fix obvious typo in company name in copyright
mfd: axp20x: Constify axp20x_acpi_match and rid unused warning
mfd: t7l66xb: prepare/unprepare clocks
mfd: tc6387xb: prepare/unprepare clocks
mfd: dln2: add support for USB-SPI module
mfd: wm5110: Add missing registers for AIF2 channels 3-6
mfd: tc3589x: get rid of static base
mfd: arizona: Document HP_CTRL_1L and HP_CTRL_1R registers
mfd: wm8997: Mark INTERRUPT_STATUS_2_MASK as readable
mfd: tc6393xb: Prepare/unprepare clocks
mfd: tps65090: Fix bonkers indenting strategy
mfd: tc6393xb: Fail ohci suspend if full state restore is required
mfd: lpc_sch: Don't call mfd_remove_devices()
mfd: wm8350-core: Fix probable mask then right shift defect
mfd: ab8500-sysctrl: Drop ab8500_restart
mfd: db8500-prcmu: Provide sane error path values
mfd: db8500-prcmu: Check return of devm_ioremap for error
...
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