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/*
* Copyright (c) 2011-2012 Sebastian Huber. All rights reserved.
*
* embedded brains GmbH
* Obere Lagerstr. 30
* 82178 Puchheim
* Germany
* <rtems@embedded-brains.de>
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.org/license/LICENSE.
*/
#include <string.h>
#include <rtems/score/armv7m.h>
#include <bsp.h>
#include <bsp/irq.h>
#include <bsp/irq-generic.h>
#include <bsp/linker-symbols.h>
#include <bsp/armv7m-irq.h>
#ifdef ARM_MULTILIB_ARCH_V7M
void bsp_interrupt_vector_enable(rtems_vector_number vector)
{
bsp_interrupt_assert(bsp_interrupt_is_valid_vector(vector));
_ARMV7M_NVIC_Set_enable((int) vector);
}
void bsp_interrupt_vector_disable(rtems_vector_number vector)
{
bsp_interrupt_assert(bsp_interrupt_is_valid_vector(vector));
_ARMV7M_NVIC_Clear_enable((int) vector);
}
rtems_status_code bsp_interrupt_facility_initialize(void)
{
int i;
ARMV7M_Exception_handler *vector_table =
(ARMV7M_Exception_handler *) bsp_vector_table_begin;
if (bsp_vector_table_begin != bsp_start_vector_table_begin) {
memcpy(
vector_table,
bsp_start_vector_table_begin,
(size_t) bsp_vector_table_size
);
}
_ARMV7M_SCB->icsr = ARMV7M_SCB_ICSR_PENDSVCLR | ARMV7M_SCB_ICSR_PENDSTCLR;
for (i = BSP_INTERRUPT_VECTOR_MIN; i <= BSP_INTERRUPT_VECTOR_MAX; ++i) {
vector_table [ARMV7M_VECTOR_IRQ(i)] = _ARMV7M_NVIC_Interrupt_dispatch;
_ARMV7M_NVIC_Clear_enable(i);
_ARMV7M_NVIC_Clear_pending(i);
_ARMV7M_NVIC_Set_priority(i, BSP_ARMV7M_IRQ_PRIORITY_DEFAULT);
}
_ARMV7M_SCB->vtor = vector_table;
return RTEMS_SUCCESSFUL;
}
#endif /* ARM_MULTILIB_ARCH_V7M */
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