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dynamic_isr.c
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dynamic_isr.c
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/*
* Copyright (c) 2018 Intel Corporation.
*
* SPDX-License-Identifier: Apache-2.0
*/
#include "sw_isr_common.h"
#include <zephyr/sw_isr_table.h>
#include <zephyr/irq.h>
#include <zephyr/sys/__assert.h>
void __weak z_isr_install(unsigned int irq, void (*routine)(const void *),
const void *param)
{
unsigned int table_idx;
/*
* Do not assert on the IRQ enable status for ARM GIC since the SGI
* type interrupts are always enabled and attempting to install an ISR
* for them will cause the assertion to fail.
*/
#ifndef CONFIG_GIC
__ASSERT(!irq_is_enabled(irq), "IRQ %d is enabled", irq);
#endif /* !CONFIG_GIC */
table_idx = z_get_sw_isr_table_idx(irq);
/* If dynamic IRQs are enabled, then the _sw_isr_table is in RAM and
* can be modified
*/
_sw_isr_table[table_idx].arg = param;
_sw_isr_table[table_idx].isr = routine;
}
/* Some architectures don't/can't interpret flags or priority and have
* no more processing to do than this. Provide a generic fallback.
*/
int __weak arch_irq_connect_dynamic(unsigned int irq,
unsigned int priority,
void (*routine)(const void *),
const void *parameter,
uint32_t flags)
{
ARG_UNUSED(flags);
ARG_UNUSED(priority);
z_isr_install(irq, routine, parameter);
return irq;
}