forked from Imagelibrary/rtems
65 lines
1.4 KiB
C
65 lines
1.4 KiB
C
/**
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* @file
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*
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* TX4925 Interrupt Vectoring
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*/
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/*
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* COPYRIGHT (c) 1989-2012.
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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.org/license/LICENSE.
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*/
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#include <rtems.h>
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#include <stdlib.h>
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#include <libcpu/isr_entries.h>
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#include <libcpu/tx4938.h>
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#include <bsp/irq.h>
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#include <bsp/irq-generic.h>
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#include <rtems/bspIo.h> /* for printk */
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void mips_default_isr( int vector );
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void mips_vector_isr_handlers( CPU_Interrupt_frame *frame )
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{
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unsigned int sr;
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unsigned int cause;
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unsigned int pending;
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mips_get_sr( sr );
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mips_get_cause( cause );
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pending = (cause & sr & 0x700) >> CAUSE_IPSHIFT;
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if ( pending & 0x4 ) { /* (IP[2] == 1) ==> IP[3-7] are valid */
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unsigned int v = (cause >> (CAUSE_IPSHIFT + 3)) & 0x1f;
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bsp_interrupt_handler_dispatch( MIPS_INTERRUPT_BASE + v );
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}
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if ( pending & 0x01 ) /* IP[0] */
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bsp_interrupt_handler_dispatch( TX4938_IRQ_SOFTWARE_1 );
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if ( pending & 0x02 ) /* IP[1] */
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bsp_interrupt_handler_dispatch( TX4938_IRQ_SOFTWARE_2 );
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}
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void mips_default_isr( int vector )
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{
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unsigned int sr;
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unsigned int cause;
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mips_get_sr( sr );
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mips_get_cause( cause );
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printk( "Unhandled isr exception: vector 0x%02x, cause 0x%08X, sr 0x%08X\n",
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vector, cause, sr );
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while(1); /* Lock it up */
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rtems_fatal_error_occurred(1);
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}
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