litmus-rt.git/drivers/input, branch wip-extra-debug

Input: evdev - fix EVIOCSABS regression

2010-10-18T15:45:08+00:00

448cd16 ("Input: evdev - rearrange ioctl handling") broke EVIOCSABS by
checking for the wrong direction bit.

Signed-off-by: Daniel Mack 
Reported-by: Sven Neumann 
Tested-by: Sven Neumann 
Signed-off-by: Dmitry Torokhov

Input: evdev - fix Ooops in EVIOCGABS/EVIOCSABS

2010-10-18T15:45:02+00:00

This fixes a regression introduced by the dynamic allocation of absinfo
for input devices. We need to bail out early for input devices which
don't have absolute axis.

[  929.664303] Pid: 2989, comm: input Not tainted 2.6.36-rc8+ #14 MS-7260/MS-7260
[  929.664318] EIP: 0060:[] EFLAGS: 00010246 CPU: 0
[  929.664331] EIP is at evdev_ioctl+0x4f8/0x59f
[  929.664341] EAX: 00000040 EBX: 00000000 ECX: 00000006 EDX: f45a1efc
[  929.664355] ESI: 00000000 EDI: f45a1efc EBP: f45a1f24 ESP: f45a1eb8
[  929.664369]  DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068
[  929.664402]  f470da74 f6a30e78 f462c240 00000018 bfe4a260 00000000 f45b06fc 00000000
[  929.664429] <0> 000000c4 b769d000 c3544620 f470da74 f45b06fc f45b06fc f45a1f38 c107dd1f
[  929.664458] <0> f4710b74 000000c4 00000000 00000000 00000000 0000029d 00000a74 f4710b74
[  929.664500]  [] ? handle_mm_fault+0x2be/0x59a
[  929.664513]  [] ? evdev_ioctl+0x0/0x59f
[  929.664524]  [] ? do_vfs_ioctl+0x494/0x4d9
[  929.664538]  [] ? up_read+0x16/0x29
[  929.664550]  [] ? do_page_fault+0x2ff/0x32d
[  929.664564]  [] ? do_sys_open+0xc5/0xcf
[  929.664575]  [] ? sys_ioctl+0x41/0x61
[  929.664587]  [] ? sysenter_do_call+0x12/0x36
[  929.684570] ---[ end trace 11b83e923bd8f2bb ]---

Signed-off-by: Daniel Mack 
Signed-off-by: Dmitry Torokhov

Input: wacom - fix pressure in Cintiq 21UX2

2010-10-10T21:16:09+00:00

Currently the pressure range in Cintiq 21UX2 is limited to half of the
supported. This patch fixes the problem.

Signed-off-by: Aristeu Rozanski 
Acked-by: Ping Cheng 
CC: stable@kernel.org
Signed-off-by: Dmitry Torokhov

Input: wacom - fix runtime PM related deadlock

2010-10-05T05:36:41+00:00

When runtime PM is enabled by default for input devices, X hangs in
wacom open:
[] mutex_lock+0x1a/0x40
[] wacom_resume+0x3b/0x90 [wacom]
[] usb_resume_interface+0xd2/0x190
[] usb_resume_both+0x6d/0x110
[] usb_runtime_resume+0x24/0x40
[] __pm_runtime_resume+0x26f/0x450
[] __pm_runtime_resume+0x1da/0x450
[] pm_runtime_resume+0x2a/0x50
[] usb_autopm_get_interface+0x26/0x60
[] wacom_open+0x36/0x90 [wacom]

wacom_open() takes wacom->lock and calls usb_autopm_get_interface(),
which in turn calls wacom_resume() which tries to acquire the lock
again.

The fix is to call usb_autopm_get_interface() first, before we take
the lock.

Since we do not do usb_autopm_put_interface() until wacom_close()
is called runtime PM is effectively disabled for the driver, however
changing it now would risk regressions so the complete fix will
have to wait till the next merge window.

Reported-by: Jiri Slaby 
Acked-by: Oliver Neukum 
Signed-off-by: Dmitry Torokhov

Input: joydev - fix JSIOCSAXMAP ioctl

2010-09-21T07:59:43+00:00

Fixed JSIOCSAXMAP ioctl to update absmap, the map from hardware axis to
event axis in addition to abspam.  This fixes a regression introduced
by 999b874f.

Signed-off-by: Kenneth Waters 
Cc: stable@kernel.org
Signed-off-by: Dmitry Torokhov

Input: uinput - setup MT usage during device creation

2010-09-19T23:29:57+00:00

The input devices created by uinput do not currently handle multitouch
properly. All events will appear as if they came from slot zero, and
the input event buffers are not adjusted. This patch creates the MT
slots during setup, and sets the number of events per packet based
on the MT usage.

Signed-off-by: Henrik Rydberg 
Signed-off-by: Dmitry Torokhov

Input: i8042 - fix device removal on unload

2010-09-01T01:28:15+00:00

We need to call platform_device_unregister(i8042_platform_device)
before calling platform_driver_unregister() because i8042_remove()
resets i8042_platform_device to NULL. This leaves the platform device
instance behind and prevents driver reload.

Fixes https://bugzilla.kernel.org/show_bug.cgi?id=16613

Reported-by: Seryodkin Victor 
Cc: stable@kernel.org
Signed-off-by: Dmitry Torokhov

Input: bcm5974 - adjust major/minor to scale

2010-09-01T01:00:02+00:00

By visual inspection, the reported touch_major and touch_minor axes
are a factor of two too small. Presumably the device actually reports
the semi-major and semi-minor axes. Corrected with this patch.

Signed-off-by: Henrik Rydberg 
Signed-off-by: Dmitry Torokhov

Input: MT - initialize slots to unused

2010-08-29T04:39:43+00:00

For MT slots, the ABS_MT_TRACKING_ID determines whether a slot is in use,
but currently leaves initialization up to the drivers. This patch sets the
slot state to unused upon creation.

Signed-off-by: Henrik Rydberg 
Signed-off-by: Dmitry Torokhov

Input: wacom - fix mousewheel handling for old wacom tablets

2010-08-29T04:39:04+00:00

This fixes a regression introduced in
3b57ca0f80c5c8994b5b1e3d3f904cfe727951f2.

The data[6] byte contains either 1 or -1 depending on the whether the
mouse wheel on older wacom tablets is moved down (1) or up (-1).  The
patch introduced in the above commit changed the cast from (signed char)
to (signed).  When cast as a signed integer and negated, the value of -1
(stored in the byte as 0xff) became -255 rather than 1.  This patch
reverts the cast to a (signed char) and also removes an unnecessary
(signed) cast, as all the values operated on are bitmasked.

Signed-off-by: Mike Auty 
Reviewed-by: Ping Cheng 
Cc; stable@kernel.org
Signed-off-by: Dmitry Torokhov