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skrzyp |
#ifndef CYGONCE_KERNEL_CLOCK_INL
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#define CYGONCE_KERNEL_CLOCK_INL
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//==========================================================================
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//
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// clock.inl
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//
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// Clock and Alarm class inlines
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//
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//==========================================================================
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// ####ECOSGPLCOPYRIGHTBEGIN####
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// -------------------------------------------
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// This file is part of eCos, the Embedded Configurable Operating System.
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// Copyright (C) 1998, 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
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//
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// eCos is free software; you can redistribute it and/or modify it under
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// the terms of the GNU General Public License as published by the Free
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// Software Foundation; either version 2 or (at your option) any later
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// version.
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//
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// eCos is distributed in the hope that it will be useful, but WITHOUT
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// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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// FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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// for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with eCos; if not, write to the Free Software Foundation, Inc.,
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// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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//
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// As a special exception, if other files instantiate templates or use
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// macros or inline functions from this file, or you compile this file
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// and link it with other works to produce a work based on this file,
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// this file does not by itself cause the resulting work to be covered by
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// the GNU General Public License. However the source code for this file
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// must still be made available in accordance with section (3) of the GNU
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// General Public License v2.
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//
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// This exception does not invalidate any other reasons why a work based
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// on this file might be covered by the GNU General Public License.
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// -------------------------------------------
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// ####ECOSGPLCOPYRIGHTEND####
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//==========================================================================
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//#####DESCRIPTIONBEGIN####
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//
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// Author(s): nickg
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// Contributors: nickg
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// Date: 1997-09-30
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// Purpose: Define Clock and Alarm class inlines
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// Description: Define inline functions for counter, clock and alarm
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// classes.
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// Usage: #include
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// #include
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//
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//####DESCRIPTIONEND####
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//
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//==========================================================================
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#include
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// -------------------------------------------------------------------------
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// -------------------------------------------------------------------------
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// Counter class inlines
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// Return current value of counter
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inline cyg_tick_count Cyg_Counter::current_value()
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{
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return counter;
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}
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inline cyg_uint32 Cyg_Counter::current_value_lo()
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{
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return counter&0xFFFFFFFF;
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}
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inline cyg_uint32 Cyg_Counter::current_value_hi()
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{
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return (counter>>32)&0xFFFFFFFF;
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}
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// Set the counter's current value
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inline void Cyg_Counter::set_value( cyg_tick_count new_value)
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{
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counter = new_value;
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}
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// -------------------------------------------------------------------------
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// -------------------------------------------------------------------------
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// Clock class inlines
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// Return current resolution
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inline Cyg_Clock::cyg_resolution Cyg_Clock::get_resolution()
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{
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return resolution;
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}
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// Set new resolution
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inline void Cyg_Clock::set_resolution(
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Cyg_Clock::cyg_resolution new_resolution
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)
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{
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resolution = new_resolution;
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}
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inline cyg_tick_count Cyg_Clock::convert(
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cyg_tick_count value,
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struct converter *pcc )
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{
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cyg_uint64 t = (cyg_uint64)value;
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// Do this in an order to prevent overflow at the expense of
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// accuracy:
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t *= pcc->mul1;
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t += pcc->div1 / 2;
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t /= pcc->div1;
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t *= pcc->mul2;
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t += pcc->div2 / 2;
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t /= pcc->div2;
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// The alternative would be to do the 2 multiplies first
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// for smaller arguments.
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return (cyg_tick_count)t;
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}
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// -------------------------------------------------------------------------
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#endif // ifndef CYGONCE_KERNEL_CLOCK_INL
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// EOF clock.inl
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