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/* SPDX-License-Identifier: BSD-2-Clause */
/**
* @file
*
* RM5231 Interrupt Vectoring
*/
/*
* COPYRIGHT (c) 1989-2012.
* On-Line Applications Research Corporation (OAR).
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <rtems.h>
#include <stdlib.h>
#include <libcpu/isr_entries.h>
#include <libcpu/rm5231.h>
#include <bsp/irq.h>
#include <bsp/irq-generic.h>
#include <rtems/bspIo.h> /* for printk */
void mips_default_isr( int vector );
void mips_vector_isr_handlers( CPU_Interrupt_frame *frame )
{
unsigned int sr;
unsigned int cause;
unsigned int i;
unsigned int mask;
mips_get_sr( sr );
mips_get_cause( cause );
cause &= (sr & SR_IMASK);
cause >>= CAUSE_IPSHIFT;
for ( i=1, mask=0x80 ; i<=8 ; i++, mask >>= 1 ) {
if ( cause & mask )
bsp_interrupt_handler_dispatch( MIPS_INTERRUPT_BASE + 8 - i );
}
}
void mips_default_isr( int vector )
{
unsigned int sr;
unsigned int cause;
mips_get_sr( sr );
mips_get_cause( cause );
printk( "Unhandled isr exception: vector 0x%02x, cause 0x%08X, sr 0x%08X\n",
vector, cause, sr );
rtems_fatal_error_occurred(1);
}
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