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86 lines
1.6 KiB
C
86 lines
1.6 KiB
C
/*
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* Copyright (C) 2020 Koen Zandberg <koen@bergzand.net>
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*
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* This file is subject to the terms and conditions of the GNU Lesser
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* General Public License v2.1. See the file LICENSE in the top level
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* directory for more details.
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*/
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/**
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* @ingroup cpu_riscv_common
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* @{
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*
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* @file
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* @brief Platform-Level interrupt controller driver
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*
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* @author Koen Zandberg <koen@bergzand.net>
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*/
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#ifndef PLIC_H
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#define PLIC_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* @brief PLIC callback declaration
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*
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* @param irq Interrupt number
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*/
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typedef void (*plic_isr_cb_t)(int irq);
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/**
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* @brief Initialize the Platform-level interrupt controller
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*/
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void plic_init(void);
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/**
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* @brief Disable an interrupt on the PLIC
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*
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* @param irq Interrupt number
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*/
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void plic_disable_interrupt(unsigned irq);
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/**
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* @brief Enable an interrupt on the PLIC
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*
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* @param irq Interrupt number
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*/
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void plic_enable_interrupt(unsigned irq);
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/**
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* @brief Set an interrupt priority
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*
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* @param irq Interrupt number
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* @param priority Priority
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*/
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void plic_set_priority(unsigned irq, unsigned priority);
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/**
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* @brief Set the interrupt callback
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*
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* @param irq Interrupt number
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* @param cb Callback to call on interrupt
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*/
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void plic_set_isr_cb(unsigned irq, plic_isr_cb_t cb);
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/**
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* @brief External ISR callback
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*/
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/**
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* @brief Interrupt handler for the PLIC
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*
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* Must be called from the trap handler when an interrupt from the PLIC is
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* pending
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*/
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void plic_isr_handler(void);
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#ifdef __cplusplus
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}
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#endif
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#endif /* PLIC_H */
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/** @} */
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