/**************************************************************************** * arch/arm/src/armv8-m/arm_trigger_irq.c * * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright ownership. The * ASF licenses this file to you under the Apache License, Version 2.0 (the * "License"); you may not use this file except in compliance with the * License. You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the * License for the specific language governing permissions and limitations * under the License. * ****************************************************************************/ /**************************************************************************** * Included Files ****************************************************************************/ #include #include #include #include #include #include "arm_arch.h" #include "nvic.h" #ifdef CONFIG_ARCH_HAVE_IRQTRIGGER /**************************************************************************** * Public Functions ****************************************************************************/ /**************************************************************************** * Name: up_trigger_irq * * Description: * Trigger an IRQ by software. * ****************************************************************************/ void up_trigger_irq(int irq) { uint32_t pend_bit = 0; DEBUGASSERT(irq >= NVIC_IRQ_NMI && irq < NR_IRQS); if (irq >= NVIC_IRQ_FIRST) { putreg32(irq - NVIC_IRQ_FIRST, NVIC_STIR); } else { switch (irq) { case NVIC_IRQ_PENDSV: pend_bit = NVIC_INTCTRL_PENDSVSET; break; case NVIC_IRQ_NMI: pend_bit = NVIC_INTCTRL_NMIPENDSET; break; case NVIC_IRQ_SYSTICK: pend_bit = NVIC_INTCTRL_PENDSTSET; break; default: break; } if (pend_bit) { modifyreg32(NVIC_INTCTRL, 0, pend_bit); } } } #endif /* CONFIG_ARCH_HAVE_IRQTRIGGER */