linux-toradex.git/drivers/input/input.c, branch v3.7

Input: extend the number of event (and other) devices

2012-10-08T16:37:55+00:00

Extend the amount of character devices, such as eventX, mouseX and jsX,
from a hard limit of 32 per input handler to about 1024 shared across
all handlers.

To be compatible with legacy installations input handlers will start
creating char devices with minors in their legacy range, however once
legacy range is exhausted they will start allocating minors from the
dynamic range 256-1024.

Reviewed-by: David Herrmann 
Signed-off-by: Dmitry Torokhov

Merge branch 'for-next' of git://github.com/rydberg/linux into next

2012-10-01T21:40:51+00:00

Merge Henrik's updates to multitouch code. Even though Jiri already
pulled them in I need to do it too since my changes to evdev using
dynamic major would clash with them.

Input: Send events one packet at a time

2012-09-19T17:50:18+00:00

On heavy event loads, such as a multitouch driver, the irqsoff latency
can be as high as 250 us.  By accumulating a frame worth of data
before passing it on, the latency can be dramatically reduced.  As a
side effect, the special EV_SYN handling can be removed, since the
frame is now atomic.

This patch adds the events() handler callback and uses it if it
exists. The latency is improved by 50 us even without the callback.

Cc: Daniel Kurtz 
Tested-by: Benjamin Tissoires 
Tested-by: Ping Cheng 
Tested-by: Sedat Dilek 
Acked-by: Dmitry Torokhov 
Signed-off-by: Henrik Rydberg

Input: Move autorepeat to the event-passing phase

2012-09-19T17:50:17+00:00

Preparing to split event filtering and event passing, move the
autorepeat function to the point where the event is actually passed.

Tested-by: Benjamin Tissoires 
Tested-by: Ping Cheng 
Acked-by: Dmitry Torokhov 
Signed-off-by: Henrik Rydberg

Input: Make sure we follow all EV_KEY events

2012-09-19T17:50:17+00:00

For some EV_KEY types, sending a larger-than-one value causes the
input state to oscillate. This patch makes sure this cannot happen,
clearing up the autorepeat bypass logic in the process.

Tested-by: Benjamin Tissoires 
Tested-by: Ping Cheng 
Acked-by: Dmitry Torokhov 
Signed-off-by: Henrik Rydberg

Input: Improve the events-per-packet estimate

2012-09-19T17:50:17+00:00

The events-per-packet estimate has so far been used by MT devices
only. This patch adjusts the packet buffer size to also accomodate the
KEY and MSC events.  Keyboards normally send one or two keys at a
time. MT devices normally send a number of button keys along with the
MT information.  The buffer size chosen here covers those cases, and
matches the default buffer size in evdev. Since the input estimate is
now preferred, remove the special input-mt estimate.

Reviewed-and-tested-by: Ping Cheng 
Tested-by: Benjamin Tissoires 
Acked-by: Dmitry Torokhov 
Signed-off-by: Henrik Rydberg

Input: Break out MT data

2012-09-19T17:50:17+00:00

Move all MT-related things to a separate place. This saves some
bytes for non-mt input devices, and prepares for new MT features.

Reviewed-and-tested-by: Benjamin Tissoires 
Tested-by: Ping Cheng 
Acked-by: Dmitry Torokhov 
Signed-off-by: Henrik Rydberg

Input: get rid of MATCH_BIT() macro

2012-08-22T05:29:52+00:00

MATCH_BIT() is ugly and stupid, we have much nicer bitmap_subset() which
does the same and does not hide control flow.

Reported-by: Baodong Chen 
Signed-off-by: Dmitry Torokhov

Input: Use accessor for MT values

2012-02-02T13:42:20+00:00

The current MT accessor function does not distinguish between the MT
values and the slot specification event. Add an accessor function for
the values only, and use it where appropriate.

Signed-off-by: Henrik Rydberg

switch device_get_devnode() and ->devnode() to umode_t *

2012-01-04T03:54:55+00:00

both callers of device_get_devnode() are only interested in lower 16bits
and nobody tries to return anything wider than 16bit anyway.

Signed-off-by: Al Viro