linux-toradex.git/drivers/input/misc/ims-pcu.c, branch v4.1.10 Linux kernel for Apalis and Colibri modules Merge branch 'next' into for-linus 2014-12-16T04:32:42+00:00 Dmitry Torokhov dmitry.torokhov@gmail.com 2014-12-16T04:32:42+00:00 f20c86cd75f1c8c728dafd0218645ff3c5e8545d Prepare input updates for 3.19. 
Prepare input updates for 3.19.
Input: initialize device counter variables with -1 2014-12-03T23:27:17+00:00 Aniroop Mathur aniroop.mathur@gmail.com 2014-12-03T22:27:42+00:00 939ffb1712890ee22146d2dfc24adbc7da6afa84 Let's initialize atomic_t variables keeping track of number of various devices created so far with -1 in order to avoid extra subtraction operation. Signed-off-by: Aniroop Mathur <aniroop.mathur@gmail.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> 
Let's initialize atomic_t variables keeping track of number of various
devices created so far with -1 in order to avoid extra subtraction
operation.

Signed-off-by: Aniroop Mathur <aniroop.mathur@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Input: ims-pcu - fix dead code in ims_pcu_ofn_reg_addr_store() 2014-10-28T17:33:36+00:00 Dmitry Torokhov dmitry.torokhov@gmail.com 2014-10-24T22:10:47+00:00 60183a6e93ac62727161d1a94abd80e2d7d901d0 Coverity pointed out that at return point error is always 0 so the conditional is not needed. Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> 
Coverity pointed out that at return point error is always 0 so the
conditional is not needed.

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Input: ims-pcu - fix uninitialized use of 'error' in ims_pcu_buffers_alloc() 2014-05-19T05:39:56+00:00 Christian Engelmayer cengelma@gmx.at 2014-05-18T23:00:40+00:00 19318de1daf25aa1ca4fe76e1d7ac834f1bfb0c4 In case allocation via usb_alloc_coherent() fails in ims_pcu_buffers_alloc(), the function jumps to the exit path without initializing local variable 'error' that is used as return value. Detected by Coverity - CID 1016531. Signed-off-by: Christian Engelmayer <cengelma@gmx.at> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> 
In case allocation via usb_alloc_coherent() fails in ims_pcu_buffers_alloc(),
the function jumps to the exit path without initializing local variable
'error' that is used as return value. Detected by Coverity - CID 1016531.

Signed-off-by: Christian Engelmayer <cengelma@gmx.at>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Input: ims-pcu - add commands supported by the new version of the FW 2014-02-12T23:09:48+00:00 Andrey Smirnov andrew.smirnov@gmail.com 2014-02-12T23:02:14+00:00 e5fcd269c4599c4d224333b20e3ffd5e910d4db3 New version of the PCU firmware supports two new commands: - IMS_PCU_CMD_OFN_SET_CONFIG which allows to write data to the registers of one finger navigation(OFN) chip present on the device - IMS_PCU_CMD_OFN_GET_CONFIG which allows to read data form the registers of said chip. This commit adds two helper functions to use those commands and sysfs attributes to use them. It also exposes some OFN configuration parameters via sysfs. Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> 
New version of the PCU firmware supports two new commands:
  - IMS_PCU_CMD_OFN_SET_CONFIG which allows to write data to the
  registers of one finger navigation(OFN) chip present on the device
  - IMS_PCU_CMD_OFN_GET_CONFIG which allows to read data form the
  registers of said chip.

This commit adds two helper functions to use those commands and sysfs
attributes to use them. It also exposes some OFN configuration
parameters via sysfs.

Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Input: ims-pcu - fix error unwinding path in application mode 2014-02-12T23:09:40+00:00 Dmitry Torokhov dmitry.torokhov@gmail.com 2014-01-04T04:54:37+00:00 ad7647d92f61c6e78bf6dc3804da1e2acf0515b6 We first create backlight and then input devices so we should destroy them in opposite order when handling errors. Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> 
We first create backlight and then input devices so we should destroy them
in opposite order when handling errors.

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Input: ims-pcu - fix a memory leak on error 2013-04-02T05:23:30+00:00 Dmitry Torokhov dmitry.torokhov@gmail.com 2013-04-01T08:09:15+00:00 3c2b901003b4c152e19e6578c1705ce2c90edd4a Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> 
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Input: add IMS Passenger Control Unit driver 2013-03-12T15:50:22+00:00 Dmitry Torokhov dmitry.torokhov@gmail.com 2013-02-02T19:26:13+00:00 628329d52474323938a03826941e166bc7c8eff4 The PCU is a device installed in the armrest of a plane seat and is connected to IMS Rave Entertainment System. It has a set of control buttons (Volume Up/Down, Attendant, Lights, etc) on one side and gamepad-like controls on the other side. Originally the device was handled from userspace and because of that it presents itself on USB bus as a CDC-ACM modem device that however can not make calls. However the custom handling is not as convenient as using standard input subsystem facilities. If it was pure input device it would be possible to continue using userspace solution (moving it over to uinput), but the device also has backlighted keys which can not be supported via uinput. Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> 
The PCU is a device installed in the armrest of a plane seat and
is connected to IMS Rave Entertainment System. It has a set of control
buttons (Volume Up/Down, Attendant, Lights, etc) on one side and
gamepad-like controls on the other side.

Originally the device was handled from userspace and because of that
it presents itself on USB bus as a CDC-ACM modem device that however
can not make calls. However the custom handling is not as convenient
as using standard input subsystem facilities. If it was pure input
device it would be possible to continue using userspace solution
(moving it over to uinput), but the device also has backlighted keys
which can not be supported via uinput.

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>