RTEMS
6.1-rc6
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bsps
powerpc
include
libcpu
c_clock.h
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/*
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* Clock Tick Device Driver
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*
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* This routine utilizes the Decrementer Register common to the PPC family.
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*
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* The tick frequency is directly programmed to the configured number of
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* microseconds per tick.
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*
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* COPYRIGHT (c) 1989-1997.
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* On-Line Applications Research Corporation (OAR).
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*
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* The license and distribution terms for this file may in
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* the file LICENSE in this distribution or at
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* http://www.rtems.org/license/LICENSE.
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*
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* Modified to support the MPC750.
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* Modifications Copyright (c) 1999 Eric Valette valette@crf.canon.fr
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*/
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#ifndef _LIBCPU_C_CLOCK_H
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#define _LIBCPU_C_CLOCK_H
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#include <
rtems.h
>
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/*
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* These functions and variables represent the API exported by the
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* CPU to the BSP.
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*/
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extern
void
clockOff (
void
* unused);
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extern
void
clockOn (
void
* unused);
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extern
void
clockIsr (
void
* unused);
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/* bookE decrementer is slightly different */
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extern
void
clockIsrBookE (
void
*unused);
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extern
int
clockIsOn (
void
* unused);
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/*
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* These functions and variables represent the assumptions of this
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* driver on the BSP.
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*/
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extern
int
BSP_disconnect_clock_handler (
void
);
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/*
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* PCI Bus Frequency
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*/
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extern
unsigned
int
BSP_bus_frequency;
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/*
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* processor clock frequency
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*/
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extern
unsigned
int
BSP_processor_frequency;
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/*
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* Time base divisior (how many tick for 1 second).
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*/
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extern
unsigned
int
BSP_time_base_divisor;
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#endif
rtems.h
This header file defines the RTEMS Classic API.
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