24914fcb4f
only by entering the kernel, the tick counter will be updated => by using this feature, MetalSVM supports only LwIP's raw interface, because we have no guarantee that the tcpip thread will get computation time => no NETCONN & BSD socket support => no load balancing support
84 lines
2 KiB
C
84 lines
2 KiB
C
/*
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* Copyright 2010 Stefan Lankes, Chair for Operating Systems,
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* RWTH Aachen University
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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* This file is part of MetalSVM.
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*/
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/**
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* @author Stefan Lankes
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* @file arch/x86/include/asm/irq.h
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* @brief Functions related to IRQs
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*
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* This file contains functions and a pointer type related to interrupt requests.
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*/
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#ifndef __ARCH_IRQ_H__
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#define __ARCH_IRQ_H__
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#include <metalsvm/stddef.h>
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#include <metalsvm/tasks_types.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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/** @brief Pointer-type to IRQ-handling functions
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*
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* Whenever you write a IRQ-handling function it has to match this signature.
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*/
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typedef void (*irq_handler_t)(struct state *);
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/** @brief Install a custom IRQ handler for a given IRQ
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*
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* @param irq The desired irq
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* @param handler The handler to install
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*/
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int irq_install_handler(unsigned int irq, irq_handler_t handler);
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/** @brief Clear the handler for a given IRQ
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*
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* @param irq The handler's IRQ
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*/
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int irq_uninstall_handler(unsigned int irq);
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/** @brief Procedure to initialize IRQ
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*
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* This procedure is just a small collection of calls:
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* - idt_install();
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* - isrs_install();
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* - irq_install();
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*
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* @return Just returns 0 in any case
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*/
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int irq_init(void);
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/** @brief Disable the timer interrupt
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*
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* @return 0 on success
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*/
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int disable_timer_irq(void);
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/** @brief Enable the timer interrupt
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*
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* @return 0 on success
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*/
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int enable_timer_irq(void);
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#ifdef __cplusplus
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}
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#endif
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#endif
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