/* SPDX-License-Identifier: BSD-3-Clause

*

* Copyright(c) 2022 Intel Corporation. All rights reserved.

*

*/

/*

* Simple mutex implementation for SOF.

*/

#ifndef __XTOS_RTOS_MUTEX_H

#define __XTOS_RTOS_MUTEX_H

#include <rtos/kernel.h>

#include <rtos/spinlock.h>

#include <stdint.h>

#define K_FOREVER ((k_timeout_t) { .ticks = 0xffffffff })

struct k_mutex {

struct k_spinlock lock;

k_spinlock_key_t key;

};

static inline int k_mutex_init(struct k_mutex *mutex)

{

k_spinlock_init(&mutex->lock);

return 0;

}

static inline int k_mutex_lock(struct k_mutex *mutex, k_timeout_t timeout)

{

mutex->key = k_spin_lock(&mutex->lock);

return 0;

}

static inline int k_mutex_unlock(struct k_mutex *mutex)

{

k_spin_unlock(&mutex->lock, mutex->key);

return 0;

}

#endif