| // SPDX-License-Identifier: GPL-2.0-only |
| /* |
| * FTS Capacitive touch screen controller (FingerTipS) |
| * |
| * Copyright (C) 2016-2019, STMicroelectronics Limited. |
| * Authors: AMG(Analog Mems Group) <marco.cali@st.com> |
| * |
| * |
| * This program is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 as published by |
| * the Free Software Foundation. |
| * |
| * 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. |
| * |
| * You should have received a copy of the GNU General Public License along with |
| * this program. If not, see <http://www.gnu.org/licenses/>. |
| */ |
| |
| /** |
| * |
| ************************************************************************** |
| ** STMicroelectronics ** |
| ************************************************************************** |
| ** marco.cali@st.com ** |
| ************************************************************************** |
| * * |
| * FTS Utility for mesuring/handling the time * |
| * * |
| ************************************************************************** |
| *************************************************************************** |
| */ |
| |
| #include <linux/init.h> |
| #include <linux/errno.h> |
| #include <linux/platform_device.h> |
| #include <linux/kernel.h> |
| #include <linux/module.h> |
| #include <linux/slab.h> |
| #include <linux/string.h> |
| #include <stdarg.h> |
| #include <linux/input.h> |
| #include <linux/interrupt.h> |
| #include <linux/serio.h> |
| #include <linux/time.h> |
| #include <linux/pm.h> |
| #include <linux/delay.h> |
| #include <linux/ctype.h> |
| #include <linux/gpio.h> |
| #include <linux/i2c.h> |
| #include <linux/i2c-dev.h> |
| #include <linux/fs.h> |
| #include <linux/uaccess.h> |
| #include <linux/power_supply.h> |
| #include <linux/firmware.h> |
| #include <linux/regulator/consumer.h> |
| #include <linux/of_gpio.h> |
| #include <linux/timekeeping.h> |
| //#include <linux/sec_sysfs.h> |
| |
| #include "ftsCrossCompile.h" |
| #include "ftsTime.h" |
| |
| |
| void startStopWatch(struct StopWatch *w) |
| { |
| ktime_get_ts(&w->start); |
| } |
| |
| void stopStopWatch(struct StopWatch *w) |
| { |
| ktime_get_ts(&w->end); |
| } |
| |
| int elapsedMillisecond(struct StopWatch *w) |
| { |
| int result; |
| |
| result = ((w->end.tv_sec - w->start.tv_sec) * 1000) |
| + (w->end.tv_nsec - w->start.tv_nsec) / 1000000; |
| return result; |
| } |
| |
| int elapsedNanosecond(struct StopWatch *w) |
| { |
| int result; |
| |
| result = ((w->end.tv_sec - w->start.tv_sec) * 1000000000) |
| + (w->end.tv_nsec - w->start.tv_nsec); |
| return result; |
| } |
| |
| char *timestamp() |
| { |
| char *result = NULL; |
| |
| result = (char *)kmalloc_array(1, sizeof(char), GFP_KERNEL); |
| if (result == NULL) |
| return NULL; |
| result[0] = ' '; |
| return result; |
| } |
| |
| void stdelay(unsigned long ms) |
| { |
| msleep(ms); |
| } |