timers.h

udp,tcp/ip在智能家居芯片上的代码实现．包括芯片NE64的网络驱动源代码

/*
 *Copyright (c) 2000-2002 Viola Systems Ltd.
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 *any, must include the following acknowledgment:
 *	"This product includes software developed by Viola 
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 *====================================================================
 *
 *OpenTCP is the unified open source TCP/IP stack available on a series 
 *of 8/16-bit microcontrollers, please see <http://www.opentcp.org>.
 *
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/** \file timers.h
 *	\brief OpenTCP timers interface file
 *	\author 
 *		\li Jari Lahti ([e-mail])
 *	\version 1.0
 *	\date 18.7.2002
 * 	
 *	OpenTCP timers function declarations, constants, etc.
 */

#ifndef INCLUDE_TIMERS_H
#define INCLUDE_TIMERS_H

#include <datatypes.h>

/* API for Timers */

/** \def NUMTIMERS
 *	\ingroup opentcp_config
 *	\brief Number of timers available in the system
 *
 *	Change this number to change the size of the timer pool.
 */
#define NUMTIMERS 55

/** \def TIMERTIC
 *	\brief Frequency of timer interrupt
 *
 *	This value should be changed to reflect the frequency in which
 *	timers are decremented. Standard value for this is 100.
 *
 */
#define TIMERTIC 100			/* Timer period 1/secs			*/


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 timer_pool_init(void);		/* Init the pool when uC starts	*/
UINT32 check_timer(UINT8);		/* Return Timers value			*/ 	
void decrement_timers(void);	/* decrement all timers' values */

#endif