linux-toradex.git/drivers/input/tablet/wacom_sys.c, branch tegra Linux kernel for Apalis and Colibri modules Input: wacom - remove pressure for touch devices 2011-08-27T06:20:12+00:00 Ping Cheng pinglinux@gmail.com 2011-08-27T06:10:02+00:00 cfb7d557242783bc3bfe77683ced20b4909258ec Touch devices do not report valid pressure or capacitance. Signed-off-by: Ping Cheng <pingc@wacom.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru> 
Touch devices do not report valid pressure or capacitance.

Signed-off-by: Ping Cheng <pingc@wacom.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Input: wacom - report id 3 returns 4 bytes of data 2011-08-16T07:21:52+00:00 Ping Cheng pinglinux@gmail.com 2011-08-16T07:17:57+00:00 3b48c91cdf2d6827ce315b3b112310fa02198db0 Signed-off-by: Ping Cheng <pingc@wacom.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru> 
Signed-off-by: Ping Cheng <pingc@wacom.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Input: wacom - add WAC_MSG_RETRIES define 2011-08-16T07:21:48+00:00 Ping Cheng pinglinux@gmail.com 2011-08-16T07:17:56+00:00 a417ea4432db7fd1c91c19b129a3e3d2367b7ce4 Use WAC_MSG_RETRIES define instead of a numeric constant. Signed-off-by: Ping Cheng <pingc@wacom.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru> 
Use WAC_MSG_RETRIES define instead of a numeric constant.

Signed-off-by: Ping Cheng <pingc@wacom.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Merge branch 'next' into for-linus 2011-03-19T06:38:50+00:00 Dmitry Torokhov dmitry.torokhov@gmail.com 2011-03-19T06:38:50+00:00 97eb3f24352ec6632c2127b35d8087d2a809a9b9 






Input: wacom - support 2FGT in MT format
2011-03-13T04:37:25+00:00

Ping Cheng
pinglinux@gmail.com

2011-03-13T04:35:18+00:00

84eb5aa6ccb2a62c40722b8c5fb1338ea12155a3

Reviewed-by: Henrik Rydberg <rydberg@euromail.se>
Reviewed-by: Chris Bagwell <chris@cnpbagwell.com>
Signed-off-by: Ping Cheng <pingc@wacom.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>





Reviewed-by: Henrik Rydberg <rydberg@euromail.se>
Reviewed-by: Chris Bagwell <chris@cnpbagwell.com>
Signed-off-by: Ping Cheng <pingc@wacom.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>







Input: wacom - fix error path in wacom_probe()
2011-02-11T09:01:15+00:00

Alexander Strakh
cromlehg@gmail.com

2011-02-11T08:44:41+00:00

4b6d44344000ff3e62faf595e5f89fd8d9e52a94

If we fail to retrieve HID descriptor we need to free allocated URB so
jump to proper label to do that.

Signed-off-by: Alexander Strakh <strakh@ispras.ru>
Acked-by: Henrik Rydberg <rydberg@euromail.se>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>





If we fail to retrieve HID descriptor we need to free allocated URB so
jump to proper label to do that.

Signed-off-by: Alexander Strakh <strakh@ispras.ru>
Acked-by: Henrik Rydberg <rydberg@euromail.se>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>







Input: wacom - properly enable runtime PM
2010-10-18T04:20:46+00:00

Dmitry Torokhov
dmitry.torokhov@gmail.com

2010-10-10T21:24:16+00:00

62ecae09a01df507ef52e1bc90fc233a1978c60a

We need to always call usb_autopm_put_interface() in wacom_open(),
not only when initialization fails, otherwise the device will be
marked as PM-busy and will never be put in suspended state.

Based on patch by Oliver Neukum.

Acked-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>





We need to always call usb_autopm_put_interface() in wacom_open(),
not only when initialization fails, otherwise the device will be
marked as PM-busy and will never be put in suspended state.

Based on patch by Oliver Neukum.

Acked-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>







Merge branch 'for-linus' into next
2010-10-18T04:20:19+00:00

Dmitry Torokhov
dmitry.torokhov@gmail.com

2010-10-18T04:20:19+00:00

3136baf8d09458bb04332b81494fd13ad90fe94a












Input: wacom - fix runtime PM related deadlock
2010-10-05T05:36:41+00:00

Dmitry Torokhov
dmitry.torokhov@gmail.com

2010-10-05T04:46:11+00:00

f6cd378372bff06093d72f978c0150eeed3ea201

When runtime PM is enabled by default for input devices, X hangs in
wacom open:
[<ffffffff814a00ea>] mutex_lock+0x1a/0x40
[<ffffffffa02bc94b>] wacom_resume+0x3b/0x90 [wacom]
[<ffffffff81327a32>] usb_resume_interface+0xd2/0x190
[<ffffffff81327b5d>] usb_resume_both+0x6d/0x110
[<ffffffff81327c24>] usb_runtime_resume+0x24/0x40
[<ffffffff8130a2cf>] __pm_runtime_resume+0x26f/0x450
[<ffffffff8130a23a>] __pm_runtime_resume+0x1da/0x450
[<ffffffff8130a53a>] pm_runtime_resume+0x2a/0x50
[<ffffffff81328176>] usb_autopm_get_interface+0x26/0x60
[<ffffffffa02bc626>] 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 <jslaby@suse.cz>
Acked-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>





When runtime PM is enabled by default for input devices, X hangs in
wacom open:
[<ffffffff814a00ea>] mutex_lock+0x1a/0x40
[<ffffffffa02bc94b>] wacom_resume+0x3b/0x90 [wacom]
[<ffffffff81327a32>] usb_resume_interface+0xd2/0x190
[<ffffffff81327b5d>] usb_resume_both+0x6d/0x110
[<ffffffff81327c24>] usb_runtime_resume+0x24/0x40
[<ffffffff8130a2cf>] __pm_runtime_resume+0x26f/0x450
[<ffffffff8130a23a>] __pm_runtime_resume+0x1da/0x450
[<ffffffff8130a53a>] pm_runtime_resume+0x2a/0x50
[<ffffffff81328176>] usb_autopm_get_interface+0x26/0x60
[<ffffffffa02bc626>] 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 <jslaby@suse.cz>
Acked-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>







Input: wacom - request tablet data for Bamboo Pens
2010-09-12T07:13:23+00:00

Chris Bagwell
chris@cnpbagwell.com

2010-09-12T07:08:40+00:00

3dc9f40de4dddf9147b80cf15be633189a2b70f4

Bamboo P&T need to use second form of usb_set_report() to
ask to report tablet data.

With previous addition of Bamboo Touch, BTN_TOOL_TRIPLETAP is now used
for both TABLETPC2FG and BAMBOO_PT types.  So reduced check to
match type=TABLETPC2FG.

This change shows redundant check for !TABLETPC2FG in else statement.

Signed-off-by: Chris Bagwell <chris@cnpbagwell.com>
Acked-by: Ping Cheng <pingc@wacom.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>





Bamboo P&T need to use second form of usb_set_report() to
ask to report tablet data.

With previous addition of Bamboo Touch, BTN_TOOL_TRIPLETAP is now used
for both TABLETPC2FG and BAMBOO_PT types.  So reduced check to
match type=TABLETPC2FG.

This change shows redundant check for !TABLETPC2FG in else statement.

Signed-off-by: Chris Bagwell <chris@cnpbagwell.com>
Acked-by: Ping Cheng <pingc@wacom.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>