timers.h

opentcp_mcf5282原代码

/******************************************************************************
File:			timers.h

Date:			22.1.2004

Version:		0.1

Author:			Jari Lahti ([e-mail])

Description:	Implements simple timer pool. No timer chaining

Version Info:	22.1.2004 - First version (JaL)
*******************************************************************************/

#ifndef __INCLUDE_OPENTCP_TIMERS_H__
#define __INCLUDE_OPENTCP_TIMERS_H__

#include "datatypes.h"

/* API for Timers */

#define NUMTIMERS 40
#define TIMERTIC 100			/* Timer period 1/secs			*/

#define BaseTimer	0			/* Free running system timer	*/

UINT8 get_timer(void);			/* Get Timer from Timer Pool 	*/
void free_timer(UINT8);			/* Return Timer to Timer Pool	*/
void init_timer(UINT8,UINT32);	/* Init timers timeout value	*/
void init_timerPool(void);		/* Init the pool when uC starts	*/
UINT32 check_timer(UINT8);		/* Return Timers value			*/


struct timers
{
	UINT32 TimerField;
	UINT8 Free;
};


/******************************************************************************
Function:		init_timerpool

Parameters:		none

Return val:		void

Date:			18.7.2001

Desc:			Initialize timer pool
*******************************************************************************/
void init_timerpool(void);

/******************************************************************************
Function:		get_timer

Parameters:		none

Return val:		Return handle of free timer

Date:			18.7.2001

Desc:			Gets free timer from the timer pool
*******************************************************************************/
UINT8 get_timer(void);

/******************************************************************************
Function:		free_timer

Parameters:		none

Return val:		UINT8 nbr - number

Date:			18.7.2001

Desc:			puts the given timer back to the timer pool
*******************************************************************************/
void free_timer(UINT8 nbr);

/******************************************************************************
Function:		init_timer

Parameters:		UINT8 nbr - number
				UINT32 tout -  time out

Return val:		none

Date:			18.7.2001

Desc:			Initializes given timer to given time-out
*******************************************************************************/
void init_timer(UINT8 nbr, UINT32 tout);

/******************************************************************************
Function:		check_timer

Parameters:		UINT8 nbr - number

Return val:		return the value of given timer

Date:			18.7.2001

Desc:			return the value of given timer
*******************************************************************************/
UINT32 check_timer(UINT8 nbr);

/******************************************************************************
Function:		irqhandler_timer

Parameters:		void

Return val:		void

Date:			18.7.2001

Desc:			Call this function on timer interrupt
*******************************************************************************/
void irqhandler_timer(void);




#endif //guard

/* EOF	*/