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/*
* Copyright (c) 2025 Ian Marco Moffett and the Osmora Team.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of Hyra nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/errno.h>
#include <mu/spinlock.h>
#include <kern/spinlock.h>
#include <lib/string.h>
int
spinlock_init(const char *name, struct spinlock *lock)
{
size_t name_len;
if (name == NULL || lock == NULL) {
return -EINVAL;
}
name_len = strlen(name);
if (name_len >= SPINLOCK_NAMELEN - 1) {
return -ENAMETOOLONG;
}
memcpy(lock->name, name, name_len);
lock->name[name_len] = '\0';
lock->lock = 0;
return 0;
}
void
spinlock_acquire(struct spinlock *lock, bool irqclr)
{
int flags = 0;
if (irqclr) {
flags |= SPINLOCK_INTTOG;
}
mu_spinlock_acq(&lock->lock, flags);
}
void
spinlock_release(struct spinlock *lock, bool irqset)
{
int flags = 0;
if (irqset) {
flags |= SPINLOCK_INTTOG;
}
mu_spinlock_rel(&lock->lock, flags);
}
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