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touch devices: Disable touch on softlock.

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Target that have a touchpad/touchscreen should disable it while
being locked (In order to avoid LCD to drain battery power due to
"key locked" constant reporting messages. If they a have a keylock
button this was already handled at driver level. If not (e.g. fuze+),
they will have to implement a switch at driver level that action.c
can operate on softlock.
This patch does the following for any target having a touchpad
or a touchscreen and no HAS_BUTTON_HOLD (ie any softlock target)
1) it implements the code to call button_enable_touch(bool en) in
action.c.
2) button_enable_touch is implemented in button.c and call
either touchpad_enable or touchscreen_enable
3) those two function are implemented respectively in touchscreen.c
and a new touchpad.c file. They provide a generic way to silents touch's
device and call a function at driver level where target specific code
can be implemented if possible/needed (for power saving for instance).
Those function name are touchpad_enable_device and touchscreen_enable_device
4) we implement an empty function at driver level of targets that need it
to have them still being able to compiled.

Change-Id: I9ead78a25bd33466a8533f5b9f259b395cb5ce49
Reviewed-on: http://gerrit.rockbox.org/569
Reviewed-by: Thomas Martitz <kugel@rockbox.org>
Reviewed-by: Amaury Pouly <amaury.pouly@gmail.com>
This commit is contained in:
Jean-Louis Biasini 2013-09-02 11:03:56 +02:00 • committed by Amaury Pouly
parent ef2dd06d5e
commit df6eb82f51
15 changed files with 174 additions and 6 deletions
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6
firmware/target/hosted/sdl/button-sdl.c
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@ -393,10 +393,14 @@ static void button_event(int key, bool pressed)
#endif
default:
#ifdef HAVE_TOUCHSCREEN
new_btn = key_to_touch(key, mouse_coords);
if(touchscreen_is_enabled())
new_btn = key_to_touch(key, mouse_coords);
if (!new_btn)
#endif
new_btn = key_to_button(key);
#ifdef HAVE_TOUCHPAD
new_btn = touchpad_filter(new_btn);
#endif
break;
}
/* Call to make up for scrollwheel target implementation. This is