forked from Imagelibrary/rtems
52 lines
1.2 KiB
C
52 lines
1.2 KiB
C
/*
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* Copyright (c) 2010 embedded brains GmbH.
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*
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* PXA255 Interrupt handler by Yang Xi <hiyangxi@gmail.com>
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* Copyright (c) 2004 by Jay Monkman <jtm@lopingdog.com>
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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/score/armv4.h>
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#include <bsp.h>
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#include <bsp/irq.h>
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#include <bsp/irq-generic.h>
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#include <pxa255.h>
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void bsp_interrupt_dispatch(void)
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{
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rtems_vector_number vector = 31 - __builtin_clz(XSCALE_INT_ICIP);
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bsp_interrupt_handler_dispatch(vector);
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}
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void bsp_interrupt_vector_enable(rtems_vector_number vector)
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{
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bsp_interrupt_assert(bsp_interrupt_is_valid_vector(vector));
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XSCALE_INT_ICMR |= 1 << vector;
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}
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void bsp_interrupt_vector_disable(rtems_vector_number vector)
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{
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bsp_interrupt_assert(bsp_interrupt_is_valid_vector(vector));
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XSCALE_INT_ICMR &= ~(1 << vector);
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}
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rtems_status_code bsp_interrupt_facility_initialize(void)
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{
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/* disable all interrupts */
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XSCALE_INT_ICMR = 0x0;
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/* Direct the interrupt to IRQ*/
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XSCALE_INT_ICLR = 0x0;
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/* Install the IRQ exception handler */
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_CPU_ISR_install_vector(ARM_EXCEPTION_IRQ, _ARMV4_Exception_interrupt, NULL);
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return RTEMS_SUCCESSFUL;
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}
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