Zephyr API Documentation 4.0.0-rc2
A Scalable Open Source RTOS
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intel-ioapic.h
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1/*
2 * Copyright (c) 2017 Linaro Limited
3 *
4 * SPDX-License-Identifier: Apache-2.0
5 */
6#ifndef ZEPHYR_INCLUDE_DT_BINDINGS_INTERRUPT_CONTROLLER_INTEL_IOAPIC_H_
7#define ZEPHYR_INCLUDE_DT_BINDINGS_INTERRUPT_CONTROLLER_INTEL_IOAPIC_H_
8
9#define IRQ_TYPE_LEVEL 0x00008000
10#define IRQ_TYPE_EDGE 0x00000000
11#define IRQ_TYPE_LOW 0x00002000
12#define IRQ_TYPE_HIGH 0x00000000
13#define IRQ_DELIVERY_LOWEST 0x00000100
14#define IRQ_DELIVERY_FIXED 0x00000000
15
16/*
17 * for most device interrupts, lowest priority delivery is preferred
18 * since this ensures only one CPU gets the interrupt in SMP systems.
19 */
20#define IRQ_TYPE_LOWEST_EDGE_RISING (IRQ_DELIVERY_LOWEST | IRQ_TYPE_EDGE | IRQ_TYPE_HIGH)
21#define IRQ_TYPE_LOWEST_EDGE_FALLING (IRQ_DELIVERY_LOWEST | IRQ_TYPE_EDGE | IRQ_TYPE_LOW)
22#define IRQ_TYPE_LOWEST_LEVEL_HIGH (IRQ_DELIVERY_LOWEST | IRQ_TYPE_LEVEL | IRQ_TYPE_HIGH)
23#define IRQ_TYPE_LOWEST_LEVEL_LOW (IRQ_DELIVERY_LOWEST | IRQ_TYPE_LEVEL | IRQ_TYPE_LOW)
24
25/* for interrupts that want to be delivered to all CPUs, e.g. HPET */
26#define IRQ_TYPE_FIXED_EDGE_RISING (IRQ_DELIVERY_FIXED | IRQ_TYPE_EDGE | IRQ_TYPE_HIGH)
27#define IRQ_TYPE_FIXED_EDGE_FALLING (IRQ_DELIVERY_FIXED | IRQ_TYPE_EDGE | IRQ_TYPE_LOW)
28#define IRQ_TYPE_FIXED_LEVEL_HIGH (IRQ_DELIVERY_FIXED | IRQ_TYPE_LEVEL | IRQ_TYPE_HIGH)
29#define IRQ_TYPE_FIXED_LEVEL_LOW (IRQ_DELIVERY_FIXED | IRQ_TYPE_LEVEL | IRQ_TYPE_LOW)
30
31#endif