forked from Imagelibrary/rtems
68 lines
1.7 KiB
C
68 lines
1.7 KiB
C
/*
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* Copyright (c) 2011-2012 Sebastian Huber. All rights reserved.
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*
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* embedded brains GmbH
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* Obere Lagerstr. 30
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* 82178 Puchheim
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* Germany
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* <rtems@embedded-brains.de>
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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 <string.h>
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#include <rtems/score/armv7m.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 <bsp/linker-symbols.h>
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#include <bsp/armv7m-irq.h>
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#ifdef ARM_MULTILIB_ARCH_V7M
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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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_ARMV7M_NVIC_Set_enable((int) 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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_ARMV7M_NVIC_Clear_enable((int) 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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int i;
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ARMV7M_Exception_handler *vector_table =
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(ARMV7M_Exception_handler *) bsp_vector_table_begin;
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if (bsp_vector_table_begin != bsp_start_vector_table_begin) {
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memcpy(
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vector_table,
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bsp_start_vector_table_begin,
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(size_t) bsp_vector_table_size
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);
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}
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_ARMV7M_SCB->icsr = ARMV7M_SCB_ICSR_PENDSVCLR | ARMV7M_SCB_ICSR_PENDSTCLR;
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for (i = BSP_INTERRUPT_VECTOR_MIN; i <= BSP_INTERRUPT_VECTOR_MAX; ++i) {
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vector_table [ARMV7M_VECTOR_IRQ(i)] = _ARMV7M_NVIC_Interrupt_dispatch;
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_ARMV7M_NVIC_Clear_enable(i);
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_ARMV7M_NVIC_Clear_pending(i);
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_ARMV7M_NVIC_Set_priority(i, BSP_ARMV7M_IRQ_PRIORITY_DEFAULT);
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}
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_ARMV7M_SCB->vtor = vector_table;
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return RTEMS_SUCCESSFUL;
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}
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#endif /* ARM_MULTILIB_ARCH_V7M */
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