Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit b93686e5 authored by Fenglin Wu's avatar Fenglin Wu Committed by Gerrit - the friendly Code Review server
Browse files

input: qti-haptics: Add FF_GAIN capability support 



Add FF_GAIN capability support. It can be used to change the vibration
magnitude dynamically.

Change-Id: I07b029e63ec0ee52bc440884c5b6f89a2de69def
Signed-off-by: default avatarFenglin Wu <fenglinw@codeaurora.org>
parent ac4b0e1c

drivers/input/misc/qti-haptics.c

+18 −0
Original line number Diff line number Diff line
@@ -969,6 +969,22 @@ static int qti_haptics_erase(struct input_dev *dev, int effect_id) 
	return rc;

}



static void qti_haptics_set_gain(struct input_dev *dev, u16 gain)

{

	struct qti_hap_chip *chip = input_get_drvdata(dev);

	struct qti_hap_config *config = &chip->config;

	struct qti_hap_play_info *play = &chip->play;



	if (gain == 0)

		return;



	if (gain > 0x7fff)

		gain = 0x7fff;



	play->vmax_mv = ((u32)(gain * config->vmax_mv)) / 0x7fff;

	qti_haptics_config_vmax(chip, play->vmax_mv);

}



static int qti_haptics_hw_init(struct qti_hap_chip *chip)

{

	struct qti_hap_config *config = &chip->config;
@@ -1429,6 +1445,7 @@ static int qti_haptics_probe(struct platform_device *pdev) 
	chip->input_dev = input_dev;



	input_set_capability(input_dev, EV_FF, FF_CONSTANT);

	input_set_capability(input_dev, EV_FF, FF_GAIN);

	if (chip->effects_count != 0) {

		input_set_capability(input_dev, EV_FF, FF_PERIODIC);

		input_set_capability(input_dev, EV_FF, FF_CUSTOM);
@@ -1449,6 +1466,7 @@ static int qti_haptics_probe(struct platform_device *pdev) 
	ff->upload = qti_haptics_upload_effect;

	ff->playback = qti_haptics_playback;

	ff->erase = qti_haptics_erase;

	ff->set_gain = qti_haptics_set_gain;



	rc = input_register_device(input_dev);

	if (rc < 0) {