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#ifndef CYGONCE_HAL_VAR_ARCH_H
#define CYGONCE_HAL_VAR_ARCH_H
//=============================================================================
//
//      var_arch.h
//
//      AT91 variant architecture overrides
//
//=============================================================================
// ####ECOSGPLCOPYRIGHTBEGIN####                                            
// -------------------------------------------                              
// This file is part of eCos, the Embedded Configurable Operating System.   
// Copyright (C) 2003 Free Software Foundation, Inc.                        
//
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// version.                                                                 
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// for more details.                                                        
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//
// As a special exception, if other files instantiate templates or use      
// macros or inline functions from this file, or you compile this file      
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// this file does not by itself cause the resulting work to be covered by   
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// General Public License v2.                                               
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// ####ECOSGPLCOPYRIGHTEND####                                              
//=============================================================================
//#####DESCRIPTIONBEGIN####
//
// Author(s):    jlarmour
// Contributors: Daniel Neri
// Date:         2003-06-24
// Purpose:      AT91 variant architecture overrides
// Description: 
// Usage:        #include <cyg/hal/hal_arch.h>
//
//####DESCRIPTIONEND####
//
//=============================================================================
 
#include <pkgconf/hal.h>
#include <cyg/hal/hal_io.h>
 
//--------------------------------------------------------------------------
// Idle thread code.
// This macro is called in the idle thread loop, and gives the HAL the
// chance to insert code. Typical idle thread behaviour might be to halt the
// processor. These implementations halt the system core clock.
 
#ifndef HAL_IDLE_THREAD_ACTION
 
 
#if defined(CYGHWR_HAL_ARM_AT91_R40807) || \
    defined(CYGHWR_HAL_ARM_AT91_R40008)
 
#define HAL_IDLE_THREAD_ACTION(_count_)                       \
CYG_MACRO_START                                               \
    HAL_WRITE_UINT32(AT91_PS+AT91_PS_CR, AT91_PS_CR_CPU);     \
CYG_MACRO_END
 
#elif defined(CYGHWR_HAL_ARM_AT91_M42800A) || \
      defined(CYGHWR_HAL_ARM_AT91_M55800A) || \
      defined(CYGHWR_HAL_ARM_AT91SAM7)
 
#define HAL_IDLE_THREAD_ACTION(_count_)                       \
CYG_MACRO_START                                               \
    HAL_WRITE_UINT32(AT91_PMC+AT91_PMC_SCDR, 1);              \
CYG_MACRO_END
 
#elif defined(CYGHWR_HAL_ARM_AT91_JTST) 
// No idle action for the JTST
#else
#error Unknown AT91 variant
 
#endif
 
#endif
 
//-----------------------------------------------------------------------------
// end of var_arch.h
#endif // CYGONCE_HAL_VAR_ARCH_H