mirror of https://github.com/thesofproject/sof.git
44 lines
776 B
C
44 lines
776 B
C
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/* SPDX-License-Identifier: BSD-3-Clause
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*
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* Copyright(c) 2022 Intel Corporation. All rights reserved.
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*
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*/
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/*
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* Simple mutex implementation for SOF.
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*/
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#ifndef __POSIX_RTOS_MUTEX_H
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#define __POSIX_RTOS_MUTEX_H
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#include <rtos/kernel.h>
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#include <rtos/spinlock.h>
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#include <stdint.h>
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#define K_FOREVER ((k_timeout_t) { .ticks = 0xffffffff })
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struct k_mutex {
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struct k_spinlock lock;
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k_spinlock_key_t key;
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};
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static inline int k_mutex_init(struct k_mutex *mutex)
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{
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k_spinlock_init(&mutex->lock);
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return 0;
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}
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static inline int k_mutex_lock(struct k_mutex *mutex, k_timeout_t timeout)
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{
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mutex->key = k_spin_lock(&mutex->lock);
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return 0;
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}
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static inline int k_mutex_unlock(struct k_mutex *mutex)
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{
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k_spin_unlock(&mutex->lock, mutex->key);
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return 0;
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}
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#endif
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