52 lines
1.3 KiB
C
52 lines
1.3 KiB
C
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/*
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* Copyright (c) 2016 Intel Corporation
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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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/**
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* @file
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* @brief Kernel event logger support for Nios II
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*/
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#ifndef __KERNEL_EVENT_LOGGER_ARCH_H__
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#define __KERNEL_EVENT_LOGGER_ARCH_H__
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#include <arch/cpu.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 Get the identification of the current interrupt.
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*
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* This routine obtain the key of the interrupt that is currently processed
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* if it is called from a ISR context.
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*
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* @return The key of the interrupt that is currently being processed.
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*/
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static inline int _sys_current_irq_key_get(void)
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{
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uint32_t ipending;
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ipending = _nios2_creg_read(NIOS2_CR_IPENDING);
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return find_lsb_set(ipending) - 1;
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}
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#ifdef __cplusplus
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}
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#endif
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#endif /* __KERNEL_EVENT_LOGGER_ARCH_H__ */
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