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Input: improve autorepeat initialization 

Add new function input_enable_softrepeat() that allows drivers to
initialize their own values for input_dev->rep[REP_DELAY] and
input_dev->rep[REP_PERIOD], but also use the software autorepeat
functionality from input.c.

For example, a HID driver could do:

static void xyz_input_configured(struct hid_device *hid,
                                 struct hid_input *hidinput)
{
        input_enable_softrepeat(hidinput->input, 400, 100);
}

static struct hid_driver xyz_driver = {
        .input_configured = xyz_input_configured,
}

Signed-off-by: Petri Gynther <pgynther@google.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This commit is contained in:
Petri Gynther 2015-10-13 23:13:55 -07:00 committed by Dmitry Torokhov
parent aba54876bb
commit 027c71bbae
2 changed files with 21 additions and 6 deletions
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25
drivers/input/input.c
View File

@ -2044,6 +2044,23 @@ static void devm_input_device_unregister(struct device *dev, void *res)
__input_unregister_device(input);
}
/**
* input_enable_softrepeat - enable software autorepeat
* @dev: input device
* @delay: repeat delay
* @period: repeat period
*
* Enable software autorepeat on the input device.
*/
void input_enable_softrepeat(struct input_dev *dev, int delay, int period)
{
dev->timer.data = (unsigned long) dev;
dev->timer.function = input_repeat_key;
dev->rep[REP_DELAY] = delay;
dev->rep[REP_PERIOD] = period;
}
EXPORT_SYMBOL(input_enable_softrepeat);
/**
* input_register_device - register device with input core
* @dev: device to be registered
@ -2108,12 +2125,8 @@ int input_register_device(struct input_dev *dev)
* If delay and period are pre-set by the driver, then autorepeating
* is handled by the driver itself and we don't do it in input.c.
*/
if (!dev->rep[REP_DELAY] && !dev->rep[REP_PERIOD]) {
dev->timer.data = (long) dev;
dev->timer.function = input_repeat_key;
dev->rep[REP_DELAY] = 250;
dev->rep[REP_PERIOD] = 33;
}
if (!dev->rep[REP_DELAY] && !dev->rep[REP_PERIOD])
input_enable_softrepeat(dev, 250, 33);
if (!dev->getkeycode)
dev->getkeycode = input_default_getkeycode;

2
include/linux/input.h
View File

@ -469,6 +469,8 @@ int input_get_keycode(struct input_dev *dev, struct input_keymap_entry *ke);
int input_set_keycode(struct input_dev *dev,
const struct input_keymap_entry *ke);
void input_enable_softrepeat(struct input_dev *dev, int delay, int period);
extern struct class input_class;
/**