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/* SPDX-License-Identifier: BSD-2-Clause */
/*
* Copyright (C) 2020 embedded brains GmbH (http://www.embedded-brains.de)
* Copyright (C) 2011, 2012 Sebastian Huber
*
* 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 <bsp/irq-generic.h>
#include <bsp.h>
#include <bsp/irq.h>
#include <bsp/linker-symbols.h>
#include <bsp/armv7m-irq.h>
#include <rtems/score/armv7m.h>
#include <string.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)
{
ARMV7M_Exception_handler *vector_table;
int i;
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 = 0; i <= BSP_INTERRUPT_VECTOR_MAX; ++i) {
_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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