proc_misc.c

eCos操作系统源码

//==========================================================================
//
//      proc_misc.c
//
//      HAL implementation miscellaneous functions
//
//==========================================================================
//####ECOSGPLCOPYRIGHTBEGIN####
// -------------------------------------------
// This file is part of eCos, the Embedded Configurable Operating System.
// Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
//
// eCos is free software; you can redistribute it and/or modify it under
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// for more details.
//
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//
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// or inline functions from this file, or you compile this file and link it
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// -------------------------------------------
//####ECOSGPLCOPYRIGHTEND####
//==========================================================================

#include <pkgconf/hal.h>
#include <cyg/infra/cyg_type.h>

#include <cyg/hal/proc_arch.h>
#include <cyg/hal/hal_memmap.h>

//      Define the global pointer to the SIM registers.

volatile mcf5272_sim_t * const mcf5272_sim_p = (mcf5272_sim_t *)MCF5272_MBAR;

//      Define a mirror copy of  the interrupt control  registers used to  set
// interrupt priorities.  In order to mask and unmask a specific interrupt, we
// must be able to set its priority  to  zero  and  then  restore  it  to  ist
// original priority.  We use  these  locations  to  determine  the  level  to
// restore the interrupt to in the unmask macro.

cyg_uint32 hal_icr_pri_mirror[4];

//--------------------------------------------------------------------------
// End of var_misc.c