android_kernel_samsung_sm8650-modules/focaltech_touch/focaltech_point_report_check.c

/*
 *
 * FocalTech TouchScreen driver.
 *
 * Copyright (c) 2012-2019, FocalTech Systems, Ltd., all rights reserved.
 *
 * This software is licensed under the terms of the GNU General Public
 * License version 2, as published by the Free Software Foundation, and
 * may be copied, distributed, and modified under those terms.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 */

/*****************************************************************************
*
* File Name: focaltech_point_report_check.c
*
* Author: Focaltech Driver Team
*
* Created: 2016-11-16
*
* Abstract: point report check function
*
* Version: v1.0
*
* Revision History:
*
*****************************************************************************/

/*****************************************************************************
* Included header files
*****************************************************************************/
#include "focaltech_core.h"

#if FTS_POINT_REPORT_CHECK_EN
/*****************************************************************************
* Private constant and macro definitions using #define
*****************************************************************************/
#define POINT_REPORT_CHECK_WAIT_TIME              200    /* unit:ms */

/*****************************************************************************
* functions body
*****************************************************************************/
/*****************************************************************************
*  Name: fts_prc_func
*  Brief: fts point report check work func, report whole up of points
*  Input:
*  Output:
*  Return:
*****************************************************************************/
static void fts_prc_func(struct work_struct *work)
{
	struct fts_ts_data *ts_data = container_of(work,
					struct fts_ts_data, prc_work.work);
	struct input_dev *input_dev = ts_data->input_dev;
#if FTS_MT_PROTOCOL_B_EN
	u32 finger_count = 0;
	u32 max_touches = fts_data->pdata->max_touch_number;
#endif

	FTS_FUNC_ENTER();
	mutex_lock(&ts_data->report_mutex);

#if FTS_MT_PROTOCOL_B_EN
	for (finger_count = 0; finger_count < max_touches; finger_count++) {
		input_mt_slot(input_dev, finger_count);
		input_mt_report_slot_state(input_dev, MT_TOOL_FINGER, false);
	}
#else
	input_mt_sync(input_dev);
#endif
	input_report_key(input_dev, BTN_TOUCH, 0);
	input_sync(input_dev);

	mutex_unlock(&ts_data->report_mutex);

	FTS_FUNC_EXIT();
}

/*****************************************************************************
*  Name: fts_prc_queue_work
*  Brief: fts point report check queue work, call it when interrupt comes
*  Input:
*  Output:
*  Return:
*****************************************************************************/
void fts_prc_queue_work(struct fts_ts_data *ts_data)
{
	cancel_delayed_work_sync(&ts_data->prc_work);
	queue_delayed_work(ts_data->ts_workqueue, &ts_data->prc_work,
			msecs_to_jiffies(POINT_REPORT_CHECK_WAIT_TIME));
}

/*****************************************************************************
*  Name: fts_point_report_check_init
*  Brief:
*  Input:
*  Output:
*  Return: < 0: Fail to create esd check queue
*****************************************************************************/
int fts_point_report_check_init(struct fts_ts_data *ts_data)
{
	FTS_FUNC_ENTER();

	if (ts_data->ts_workqueue) {
		INIT_DELAYED_WORK(&ts_data->prc_work, fts_prc_func);
	} else {
		FTS_ERROR("fts workqueue is NULL, can't run point report check function");
		return -EINVAL;
	}

	FTS_FUNC_EXIT();
	return 0;
}

/*****************************************************************************
*  Name: fts_point_report_check_exit
*  Brief:
*  Input:
*  Output:
*  Return:
*****************************************************************************/
int fts_point_report_check_exit(struct fts_ts_data *ts_data)
{
	FTS_FUNC_ENTER();

	FTS_FUNC_EXIT();
	return 0;
}
#endif /* FTS_POINT_REPORT_CHECK_EN */