unleashed-firmware/lib/ST25RFAL002/timer.c
あく e3c7201a20
Furi: core refactoring and CMSIS removal part 2 ()
* Furi: rename and move core
* Furi: drop CMSIS_OS header and unused api, partially refactor and cleanup the rest
* Furi: CMSIS_OS drop and refactoring.
* Furi: refactoring, remove cmsis legacy
* Furi: fix incorrect assert on queue deallocation, cleanup timer
* Furi: improve delay api, get rid of floats
* hal: dropped furi_hal_crc
* Furi: move DWT based delay to cortex HAL
* Furi: update core documentation

Co-authored-by: hedger <hedger@nanode.su>
2022-07-20 13:56:33 +03:00

106 lines
3.2 KiB
C

/******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT 2016 STMicroelectronics</center></h2>
*
* Licensed under ST MYLIBERTY SOFTWARE LICENSE AGREEMENT (the "License");
* You may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.st.com/myliberty
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied,
* AND SPECIFICALLY DISCLAIMING THE IMPLIED WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE, AND NON-INFRINGEMENT.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************/
/*
* PROJECT: ST25R391x firmware
* $Revision: $
* LANGUAGE: ANSI C
*/
/*! \file timer.c
*
* \brief SW Timer implementation
*
* \author Gustavo Patricio
*
* This module makes use of a System Tick in millisconds and provides
* an abstraction for SW timers
*
*/
/*
******************************************************************************
* INCLUDES
******************************************************************************
*/
#include "timer.h"
#include <furi.h>
/*
******************************************************************************
* LOCAL DEFINES
******************************************************************************
*/
/*
******************************************************************************
* LOCAL VARIABLES
******************************************************************************
*/
static uint32_t timerStopwatchTick;
/*
******************************************************************************
* GLOBAL FUNCTIONS
******************************************************************************
*/
/*******************************************************************************/
uint32_t timerCalculateTimer(uint16_t time) {
return (furi_get_tick() + time);
}
/*******************************************************************************/
bool timerIsExpired(uint32_t timer) {
uint32_t uDiff;
int32_t sDiff;
uDiff = (timer - furi_get_tick()); /* Calculate the diff between the timers */
sDiff = uDiff; /* Convert the diff to a signed var */
/* Check if the given timer has expired already */
if(sDiff < 0) {
return true;
}
return false;
}
/*******************************************************************************/
void timerDelay(uint16_t tOut) {
uint32_t t;
/* Calculate the timer and wait blocking until is running */
t = timerCalculateTimer(tOut);
while(timerIsRunning(t))
;
}
/*******************************************************************************/
void timerStopwatchStart(void) {
timerStopwatchTick = furi_get_tick();
}
/*******************************************************************************/
uint32_t timerStopwatchMeasure(void) {
return (uint32_t)(furi_get_tick() - timerStopwatchTick);
}