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/* mbed Microcontroller Library
* Copyright (c) 2006-2012 ARM Limited
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#ifndef RTOS_TIMER_H
#define RTOS_TIMER_H
#include <stdint.h>
#include "cmsis_os.h"
namespace rtos {
/** The RtosTimer class allow creating and and controlling of timer functions in the system.
A timer function is called when a time period expires whereby both on-shot and
periodic timers are possible. A timer can be started, restarted, or stopped.
Timers are handled in the thread osTimerThread.
Callback functions run under control of this thread and may use CMSIS-RTOS API calls.
*/
class RtosTimer {
public:
/** Create and Start timer.
@param task name of the timer call back function.
@param type osTimerOnce for one-shot or osTimerPeriodic for periodic behaviour. (default: osTimerPeriodic)
@param argument argument to the timer call back function. (default: NULL)
*/
RtosTimer(void (*task)(void const *argument),
os_timer_type type=osTimerPeriodic,
void *argument=NULL);
/** Stop the timer.
@return status code that indicates the execution status of the function.
*/
osStatus stop(void);
/** start a timer.
@param millisec time delay value of the timer.
@return status code that indicates the execution status of the function.
*/
osStatus start(uint32_t millisec);
~RtosTimer();
private:
osTimerId _timer_id;
osTimerDef_t _timer;
#ifdef CMSIS_OS_RTX
uint32_t _timer_data[5];
#endif
};
}
#endif
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