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#ifndef CYGONCE_HAL_VAR_ARCH_H
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#define CYGONCE_HAL_VAR_ARCH_H
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//=============================================================================
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//
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// var_arch.h
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//
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// AT91 variant architecture overrides
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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) 2003 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): jlarmour
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// Contributors: Daniel Neri
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// Date: 2003-06-24
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// Purpose: AT91 variant architecture overrides
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// Description:
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// Usage: #include <cyg/hal/hal_arch.h>
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//
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//####DESCRIPTIONEND####
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//
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//=============================================================================
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#include <pkgconf/hal.h>
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#include <cyg/hal/hal_io.h>
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//--------------------------------------------------------------------------
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// Idle thread code.
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// This macro is called in the idle thread loop, and gives the HAL the
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// chance to insert code. Typical idle thread behaviour might be to halt the
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// processor. These implementations halt the system core clock.
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#ifndef HAL_IDLE_THREAD_ACTION
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#if defined(CYGHWR_HAL_ARM_AT91_R40807) || \
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defined(CYGHWR_HAL_ARM_AT91_R40008)
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#define HAL_IDLE_THREAD_ACTION(_count_) \
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CYG_MACRO_START \
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HAL_WRITE_UINT32(AT91_PS+AT91_PS_CR, AT91_PS_CR_CPU); \
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CYG_MACRO_END
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#elif defined(CYGHWR_HAL_ARM_AT91_M42800A) || \
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defined(CYGHWR_HAL_ARM_AT91_M55800A) || \
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defined(CYGHWR_HAL_ARM_AT91SAM7)
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#define HAL_IDLE_THREAD_ACTION(_count_) \
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CYG_MACRO_START \
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HAL_WRITE_UINT32(AT91_PMC+AT91_PMC_SCDR, 1); \
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CYG_MACRO_END
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#elif defined(CYGHWR_HAL_ARM_AT91_JTST)
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// No idle action for the JTST
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#else
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#error Unknown AT91 variant
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#endif
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#endif
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//-----------------------------------------------------------------------------
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// end of var_arch.h
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#endif // CYGONCE_HAL_VAR_ARCH_H
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