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Commit e89c011a authored by Abir Ghosh's avatar Abir Ghosh
Browse files

qbt: Fix touch event filtering logic 



Fix touch event codes in filtering logic.

Change-Id: I4de929b4c4c8591a8372ae1b195db85c57acf974
Signed-off-by: default avatarAbir Ghosh <abirg@codeaurora.org>
parent 2ff59c37

drivers/soc/qcom/qbt_handler.c

+10 −7
Original line number Diff line number Diff line
@@ -108,13 +108,13 @@ static void qbt_add_touch_event(struct touch_event *evt) 
	event.touch_valid = true;

	switch (evt->type) {

	case 'D':

		event.state = 1;

		event.state = QBT_EVENT_FINGER_DOWN;

		break;

	case 'U':

		event.state = 0;

		event.state = QBT_EVENT_FINGER_UP;

		break;

	case 'M':

		event.state = 2;

		event.state = QBT_EVENT_FINGER_MOVE;

		break;

	default:

		pr_err("Invalid touch event type\n");
@@ -131,7 +131,8 @@ static void qbt_radius_filter(struct touch_event *evt) 
{

	struct qbt_drvdata *drvdata = drvdata_g;

	struct fd_event event;

	int fifo_len = 0, last_x = 0, last_y = 0, last_state = 0,

	int fifo_len = 0, last_x = 0, last_y = 0,

			last_state = QBT_EVENT_FINGER_UP,

			delta_x = 0, delta_y = 0, i = 0;



	fifo_len = kfifo_len(&drvdata->fd_events);
@@ -147,7 +148,8 @@ static void qbt_radius_filter(struct touch_event *evt) 
			kfifo_put(&drvdata->fd_events, event);

		}

	}

	if (last_state == 1 || last_state == 3) {

	if (last_state == QBT_EVENT_FINGER_DOWN ||

			last_state == QBT_EVENT_FINGER_MOVE) {

		delta_x = abs(last_x - evt->x);

		delta_y = abs(last_y - evt->y);

		if (delta_x > drvdata->touch_config.rad_x ||
@@ -743,7 +745,7 @@ static void qbt_fd_report_event(struct qbt_drvdata *drvdata, int state) 
	drvdata->fd_gpio.event_reported = 1;

	drvdata->fd_gpio.last_gpio_state = state;



	event.state = state ? 1 : 2;

	event.state = state;

	event.touch_valid = false;

	do_gettimeofday(&event.timestamp);
@@ -771,7 +773,8 @@ static void qbt_gpio_work_func(struct work_struct *work) 


	drvdata = container_of(work, struct qbt_drvdata, fd_gpio.work);



	state = (__gpio_get_value(drvdata->fd_gpio.gpio) ? 1 : 0)

	state = (__gpio_get_value(drvdata->fd_gpio.gpio) ?

			QBT_EVENT_FINGER_DOWN : QBT_EVENT_FINGER_UP)

			^ drvdata->fd_gpio.active_low;



	qbt_fd_report_event(drvdata, state);

include/uapi/linux/qbt_handler.h

+13 −0
Original line number Diff line number Diff line
@@ -16,6 +16,19 @@ 
#define QBT_DISABLE_FD           105

#define QBT_CONFIGURE_TOUCH_FD   106



/*

 * enum qbt_finger_events -

 *      enumeration of qbt finger events

 * @QBT_EVENT_FINGER_UP - finger up detected

 * @QBT_EVENT_FINGER_DOWN - finger down detected

 * @QBT_EVENT_FINGER_MOVE - finger move detected

 */

enum qbt_finger_events {

	QBT_EVENT_FINGER_UP,

	QBT_EVENT_FINGER_DOWN,

	QBT_EVENT_FINGER_MOVE

};



/*

 * enum qbt_fw_event -

 *      enumeration of firmware events