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102 lines
4.6 KiB
C
102 lines
4.6 KiB
C
#ifndef __ALT_PRIV_ALARM_H__
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#define __ALT_PRIV_ALARM_H__
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/******************************************************************************
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* *
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* License Agreement *
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* *
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* Copyright (c) 2004 Altera Corporation, San Jose, California, USA. *
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* All rights reserved. *
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* *
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* Permission is hereby granted, free of charge, to any person obtaining a *
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* copy of this software and associated documentation files (the "Software"), *
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* to deal in the Software without restriction, including without limitation *
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* the rights to use, copy, modify, merge, publish, distribute, sublicense, *
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* and/or sell copies of the Software, and to permit persons to whom the *
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* Software is furnished to do so, subject to the following conditions: *
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* *
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* The above copyright notice and this permission notice shall be included in *
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* all copies or substantial portions of the Software. *
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* *
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR *
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, *
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE *
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER *
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING *
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER *
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* DEALINGS IN THE SOFTWARE. *
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* *
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* This agreement shall be governed in all respects by the laws of the State *
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* of California and by the laws of the United States of America. *
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* *
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* Altera does not recommend, suggest or require that this reference design *
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* file be used in conjunction or combination with any other product. *
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******************************************************************************/
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/******************************************************************************
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* *
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* THIS IS A LIBRARY READ-ONLY SOURCE FILE. DO NOT EDIT. *
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* *
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******************************************************************************/
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#include "alt_types.h"
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/*
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* This header provides the internal defenitions required by the public
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* interface alt_alarm.h. These variables and structures are not guaranteed to
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* exist in future implementations of the HAL.
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*/
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#ifdef __cplusplus
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extern "C"
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{
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#endif /* __cplusplus */
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/*
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* "alt_alarm_s" is a structure type used to maintain lists of alarm callback
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* functions.
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*/
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struct alt_alarm_s
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{
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alt_llist llist; /* linked list */
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alt_u32 time; /* time in system ticks of the callback */
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alt_u32 (*callback) (void* context); /* callback function. The return
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* value is the period for the next callback; where
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* zero indicates that the alarm should be removed
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* from the list.
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*/
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alt_u8 rollover; /* set when desired alarm time + current time causes
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overflow, to prevent premature alarm */
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void* context; /* Argument for the callback */
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};
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/*
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* "_alt_tick_rate" is a global variable used to store the system clock rate
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* in ticks per second. This is initialised to zero, which coresponds to there
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* being no system clock available.
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*
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* It is then set to it's final value by the system clock driver through a call
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* to alt_sysclk_init().
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*/
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extern alt_u32 _alt_tick_rate;
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/*
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* "_alt_nticks" is a global variable which records the elapsed number of
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* system clock ticks since the last call to settimeofday() or since reset if
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* settimeofday() has not been called.
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*/
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extern volatile alt_u32 _alt_nticks;
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/* The list of registered alarms. */
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extern alt_llist alt_alarm_list;
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#ifdef __cplusplus
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}
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#endif
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#endif /* __ALT_PRIV_ALARM_H__ */
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