83 lines
2.5 KiB
C
83 lines
2.5 KiB
C
/****************************************************************************
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* drivers/power/pm_lock.c
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. 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, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <nuttx/arch.h>
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#include <nuttx/irq.h>
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#include <nuttx/power/pm.h>
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#include <assert.h>
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#include <sched.h>
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#include "pm.h"
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#if defined(CONFIG_PM)
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: pm_lock
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*
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* Description:
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* Lock the power management operation.
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*
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* Input Parameters:
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* domain - The PM domain to lock
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*
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****************************************************************************/
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irqstate_t pm_lock(int domain)
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{
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if (!up_interrupt_context() && !sched_idletask())
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{
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nxrmutex_lock(&g_pmglobals.domain[domain].lock);
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}
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return enter_critical_section();
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}
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/****************************************************************************
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* Name: pm_unlock
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*
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* Description:
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* Unlock the power management operation.
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*
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* Input Parameters:
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* domain - The PM domain to unlock
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*
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****************************************************************************/
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void pm_unlock(int domain, irqstate_t flags)
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{
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leave_critical_section(flags);
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if (!up_interrupt_context() && !sched_idletask())
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{
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nxrmutex_unlock(&g_pmglobals.domain[domain].lock);
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}
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}
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#endif /* CONFIG_PM */
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