nuttx/drivers/power/pm_autoupdate.c

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/****************************************************************************
* drivers/power/pm_autoupdate.c
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership. The
* ASF licenses this file to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance with the
* License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <assert.h>
#include <stdint.h>
#include <nuttx/arch.h>
#include <nuttx/irq.h>
#include <nuttx/power/pm.h>
#include "pm.h"
#if defined(CONFIG_PM)
/****************************************************************************
* Private Functions
****************************************************************************/
static void pm_auto_updatestate_cb(FAR void *arg)
{
int domain = (uintptr_t)arg;
enum pm_state_e newstate;
newstate = pm_checkstate(domain);
pm_changestate(domain, newstate);
}
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: pm_auto_updatestate
*
* Description:
* This function update the domain state and notify the power system.
*
* Input Parameters:
* domain - The PM domain to check
*
* Returned Value:
* None.
*
****************************************************************************/
void pm_auto_updatestate(int domain)
{
FAR struct pm_domain_s *pdom;
pdom = &g_pmglobals.domain[domain];
if (pdom->auto_update)
{
#if defined(CONFIG_SCHED_WORKQUEUE)
if (up_interrupt_context())
{
work_queue(HPWORK, &pdom->update_work,
pm_auto_updatestate_cb, (FAR void *)domain, 0);
}
else
#endif
{
pm_auto_updatestate_cb((FAR void *)domain);
}
}
}
/****************************************************************************
* Name: pm_auto_update
*
* Description:
* This function set the domain with assign mode.
*
* Input Parameters:
* domain - The PM domain to check
* auto_update - The PM domain auto update or not
*
* Returned Value:
* None.
*
****************************************************************************/
void pm_auto_update(int domain, bool auto_update)
{
FAR struct pm_domain_s *pdom;
irqstate_t flags;
DEBUGASSERT(domain >= 0 && domain < CONFIG_PM_NDOMAINS);
pdom = &g_pmglobals.domain[domain];
flags = pm_lock();
pdom->auto_update = auto_update;
pm_unlock(flags);
}
#endif /* CONFIG_PM */