forked from Imagelibrary/rtems
36c187a0cd
* rtems/score/nios2-utility.h: Avoid redefines with Altera HAL. Declare _Nios2_ISR_Set_level(). * nios2-context-initialize.c: Use _Nios2_ISR_Set_level(). * nios2-isr-set-level.c: Define _Nios2_ISR_Set_level().
62 lines
1.5 KiB
C
62 lines
1.5 KiB
C
/*
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* Copyright (c) 2011 embedded brains GmbH
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*
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* Copyright (c) 2006 Kolja Waschk (rtemsdev/ixo.de)
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*
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* COPYRIGHT (c) 1989-2006
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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 be
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* found in the file LICENSE in this distribution or at
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* http://www.rtems.com/license/LICENSE.
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*
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* $Id$
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <rtems/score/cpu.h>
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#include <rtems/score/interr.h>
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#include <rtems/score/nios2-utility.h>
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uint32_t _Nios2_ISR_Set_level( uint32_t new_level, uint32_t status )
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{
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switch ( _Nios2_Get_ISR_status_mask() ) {
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case NIOS2_ISR_STATUS_MASK_IIC:
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if ( new_level == 0 ) {
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status |= NIOS2_STATUS_PIE;
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} else {
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status &= ~NIOS2_STATUS_PIE;
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}
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break;
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case NIOS2_ISR_STATUS_MASK_EIC_IL:
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status &= ~NIOS2_STATUS_IL_MASK;
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status |= (new_level << NIOS2_STATUS_IL_OFFSET) & NIOS2_STATUS_IL_MASK;
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break;
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case NIOS2_ISR_STATUS_MASK_EIC_RSIE:
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if ( new_level == 0 ) {
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status |= NIOS2_STATUS_RSIE;
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} else {
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status &= ~NIOS2_STATUS_RSIE;
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}
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break;
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default:
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/* FIXME */
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_Internal_error_Occurred( INTERNAL_ERROR_CORE, false, 0xdeadbeef );
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break;
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}
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return status;
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}
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void _CPU_ISR_Set_level( uint32_t new_level )
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{
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uint32_t status = _Nios2_Get_ctlreg_status();
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status = _Nios2_ISR_Set_level( new_level, status );
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_Nios2_Set_ctlreg_status( status );
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}
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