Zephyr API Documentation  3.6.99
A Scalable Open Source RTOS
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nvic.h
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1/*
2 * Copyright (c) 2020, Linaro Ltd.
3 *
4 * SPDX-License-Identifier: Apache-2.0
5 */
6
7#ifndef ZEPHYR_INCLUDE_ARCH_ARM_CORTEX_M_NVIC_H_
8#define ZEPHYR_INCLUDE_ARCH_ARM_CORTEX_M_NVIC_H_
9
10#include <zephyr/devicetree.h>
11
12#if defined(CONFIG_ARMV8_1_M_MAINLINE)
13/* The order here is on purpose since ARMv8.1-M SoCs may define
14 * CONFIG_ARMV6_M_ARMV8_M_BASELINE, CONFIG_ARMV7_M_ARMV8_M_MAINLINE or
15 * CONFIG_ARMV8_M_MAINLINE so we want to check for ARMv8.1-M first.
16 */
17#define NVIC_NODEID DT_INST(0, arm_v8_1m_nvic)
18#elif defined(CONFIG_ARMV8_M_BASELINE) || defined(CONFIG_ARMV8_M_MAINLINE)
19#define NVIC_NODEID DT_INST(0, arm_v8m_nvic)
20#elif defined(CONFIG_ARMV7_M_ARMV8_M_MAINLINE)
21#define NVIC_NODEID DT_INST(0, arm_v7m_nvic)
22#elif defined(CONFIG_ARMV6_M_ARMV8_M_BASELINE)
23#define NVIC_NODEID DT_INST(0, arm_v6m_nvic)
24#endif
25
26#define NUM_IRQ_PRIO_BITS DT_PROP(NVIC_NODEID, arm_num_irq_priority_bits)
27
28#endif /* ZEPHYR_INCLUDE_ARCH_ARM_CORTEX_M_NVIC_H_ */
Devicetree main header.