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/*
* COPYRIGHT (c) 1989-1999.
* On-Line Applications Research Corporation (OAR).
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.OARcorp.com/rtems/license.html.
*
* $Id$
*/
#ifndef __ITRON_TIME_h_
#define __ITRON_TIME_h_
#ifdef __cplusplus
extern "C" {
#endif
/*
* System Time Data Type
*
* Member configuration depends on the bit width of the processor and
* on the implementation. A total of 48 bits is recommended.
*
*/
typedef struct t_systime {
H utime; /* upper 16 bits */
UW ltime; /* lower 32 bits */
} SYSTIME, CYCTIME, ALMTIME;
/*
* XXX Look this up in the spec and figure out where it comes
* XXX from. dly_tim() references it but it was left out
* XXX of the initial cut at the header files.
*/
typedef int DLYTIME;
/*
* XXX (def_cyc) Structure
*/
typedef struct t_dcyc {
VP exinf; /* extended information */
ATR cycatr; /* cyclic handler attributes */
FP cychdr; /* cyclic handler address */
UINT cycact; /* cyclic handler activation */
CYCTIME cyctim; /* cyclic startup period */
} T_DCYC;
/*
* cycact
*/
#define TCY_OFF 0x00 /* do not invoke cyclic handler */
#define TCY_ON 0x01 /* invoke cyclic handler */
#define TCY_INT 0x02 /* initialize cycle count */
/*
* Reference Cyclic Handler (ref_cyc) Structure
*/
typedef struct t_rcyc {
VP exinf; /* extended information */
CYCTIME lfttim; /* time left before next handler startup */
UINT cycact; /* cyclic handler activation */
/* additional information may be included depending on the implementation */
} T_RCYC;
/*
* Define Alarm (def_alm) Structure
*/
typedef struct t_dalm {
VP exinf; /* extended information */
ATR almatr; /* alarm handler attributes */
FP almhdr; /* alarm handler address */
UINT tmmode; /* start time specification mode */
ALMTIME almtim; /* handler startup time */
} T_DALM;
/*
* tmmode
*/
#define TTM_ABS 0x00 /* specified as an absolute time */
#define TTM_REL 0x01 /* specified as a relative time */
/*
* Reference Alarm (ref_alm) Structure
*/
typedef struct t_ralm {
VP exinf; /* extended information */
ALMTIME lfttim; /* time left before next handler startup */
/* additional information may be included depending on the implementation */
} T_RALM;
/*
* Time Management Functions
*/
/*
* set_tim - Set System Clock
*/
ER set_tim(
SYSTIME *pk_tim
);
/*
* get_tim - Get System Clock
*/
ER get_tim(
SYSTIME *pk_tim
);
/*
* dly_tsk - Delay Task
*/
ER dly_tsk(
DLYTIME dlytim
);
/*
* def_cyc - Define Cyclic Handler
*/
ER def_cyc(
HNO cycno,
T_DCYC *pk_dcyc
);
/*
* act_cyc - Activate Cyclic Handler
*/
ER act_cyc(
HNO cycno,
UINT cycact
);
/*
* ref_cyc - Reference Cyclic Handler Status
*/
ER ref_cyc(
T_RCYC *pk_rcyc,
HNO cycno
);
/*
* def_alm - Define Alarm Handler
*/
ER def_alm(
HNO almno,
T_DALM *pk_dalm
);
/*
* ref_alm - Reference Alarm Handler Status
*/
ER ref_alm(
T_RALM *pk_ralm,
HNO almno
);
/*
* ret_tmr - Return from Timer Handler
*/
void ret_tmr( void );
#ifdef __cplusplus
}
#endif
#endif
/* end of include file */
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