incubator-nuttx/drivers/power/pm_governor.c

93 lines
3.0 KiB
C

/****************************************************************************
* drivers/power/pm_governor.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 <sys/types.h>
#include <errno.h>
#include <debug.h>
#include <nuttx/power/pm.h>
#include "pm.h"
/****************************************************************************
* Private Types
****************************************************************************/
/****************************************************************************
* Private Function Prototypes
****************************************************************************/
/****************************************************************************
* Private Data
****************************************************************************/
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: pm_set_governor
*
* Description:
* This function set the domain with assigned governor
*
* Input Parameters:
* domain - The PM domain to Set
* gov - The governor to use
*
* Returned Value:
* On success - OK
* On error - -EINVAL
*
****************************************************************************/
int pm_set_governor(int domain, FAR const struct pm_governor_s *gov)
{
if (gov == NULL)
{
return -EINVAL;
}
if (g_pmglobals.domain[domain].governor &&
g_pmglobals.domain[domain].governor->deinitialize)
{
g_pmglobals.domain[domain].governor->deinitialize();
}
g_pmglobals.domain[domain].governor = gov;
if (g_pmglobals.domain[domain].governor->initialize)
{
g_pmglobals.domain[domain].governor->initialize();
}
return 0;
}