mirror of
https://bitbucket.org/librepilot/librepilot.git
synced 2024-11-29 07:24:13 +01:00
88 lines
3.0 KiB
C
88 lines
3.0 KiB
C
/**
|
|
******************************************************************************
|
|
* @addtogroup OpenPilot library
|
|
* @brief These files contain the code for stopwatch handling.
|
|
*
|
|
* @file stopwatch.h
|
|
* @author The OpenPilot Team, http://www.openpilot.org Copyright (C) 2014.
|
|
* @brief Generic pios_delay based stopwatch functions.
|
|
* @see The GNU Public License (GPL) Version 3
|
|
*
|
|
*****************************************************************************/
|
|
/*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 3 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* 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, write to the Free Software Foundation, Inc.,
|
|
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*/
|
|
|
|
#ifndef _STOPWATCH_H
|
|
#define _STOPWATCH_H
|
|
#include <stdint.h>
|
|
#include <pios_delay.h>
|
|
/////////////////////////////////////////////////////////////////////////////
|
|
// Global definitions
|
|
/////////////////////////////////////////////////////////////////////////////
|
|
|
|
|
|
/////////////////////////////////////////////////////////////////////////////
|
|
// Global Types
|
|
/////////////////////////////////////////////////////////////////////////////
|
|
typedef struct {
|
|
uint32_t raw;
|
|
uint32_t resolution;
|
|
} stopwatch_t;
|
|
|
|
/////////////////////////////////////////////////////////////////////////////
|
|
// Prototypes
|
|
/////////////////////////////////////////////////////////////////////////////
|
|
|
|
|
|
inline int32_t STOPWATCH_Init(uint32_t resolution, stopwatch_t *stopwatch)
|
|
{
|
|
stopwatch->raw = PIOS_DELAY_GetRaw();
|
|
stopwatch->resolution = resolution;
|
|
return 0; // no error
|
|
}
|
|
|
|
/////////////////////////////////////////////////////////////////////////////
|
|
// ! Resets the stopwatch
|
|
// ! \return < 0 on errors
|
|
/////////////////////////////////////////////////////////////////////////////
|
|
inline int32_t STOPWATCH_Reset(stopwatch_t *stopwatch)
|
|
{
|
|
stopwatch->raw = PIOS_DELAY_GetRaw();
|
|
return 0; // no error
|
|
}
|
|
|
|
/////////////////////////////////////////////////////////////////////////////
|
|
// ! Returns current value of stopwatch
|
|
// ! \return stopwatch value
|
|
/////////////////////////////////////////////////////////////////////////////
|
|
inline uint32_t STOPWATCH_ValueGet(stopwatch_t *stopwatch)
|
|
{
|
|
uint32_t value = PIOS_DELAY_GetuSSince(stopwatch->raw);
|
|
|
|
if (stopwatch > 1) {
|
|
value = value / stopwatch->resolution;
|
|
}
|
|
return value;
|
|
}
|
|
|
|
|
|
/////////////////////////////////////////////////////////////////////////////
|
|
// Export global variables
|
|
/////////////////////////////////////////////////////////////////////////////
|
|
|
|
|
|
#endif /* _STOPWATCH_H */
|