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[/] [openrisc/] [trunk/] [rtos/] [rtems/] [c/] [src/] [exec/] [itron/] [include/] [itronsys/] [time.h] - Rev 484
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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: time.h,v 1.2 2001-09-27 11:59:12 chris Exp $ */ #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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