68 lines
2.4 KiB
C
68 lines
2.4 KiB
C
/* ---------------------------------------------------------------------------
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* Copyright (c) @CompanyNameMagicTag 2021-2021. All rights reserved.
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* Description: Adapt the NuttX semaphore interface
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* Create: 2021-01-25
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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* 1. Redistributions of source code must retain the above copyright notice, this list of
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* conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice, this list
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* of conditions and the following disclaimer in the documentation and/or other materials
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* provided with the distribution.
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* 3. Neither the name of the copyright holder nor the names of its contributors may be used
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* to endorse or promote products derived from this software without specific prior written
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* permission.
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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* --------------------------------------------------------------------------- */
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#include "dpal_typedef.h"
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#include "dpal_errno.h"
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#include "dpal_sam.h"
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#include "nuttx.h"
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int nxsem_init(nu_sem *sem, int pshared, unsigned int value)
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{
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(void)pshared;
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if (sem == NULL || value > SEM_COUNT_MAX) {
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return -EINVAL;
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}
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return dpal_sem_init(sem, value);
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}
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int nxsem_post(nu_sem *sem)
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{
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if (sem == NULL) {
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return -EINVAL;
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}
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dpal_sem_up(sem);
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return 0;
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}
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int nxsem_wait(nu_sem *sem)
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{
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if (sem == NULL) {
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return -EINVAL;
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}
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return dpal_sem_down_interruptible(sem);
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}
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int nxsem_destroy(nu_sem *sem)
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{
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if (sem == NULL) {
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return -EINVAL;
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}
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dpal_sem_destroy(sem);
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return 0;
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}
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