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      1 /*
      2  * Copyright (C) 2017 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 #ifndef CHRE_PLATFORM_POWER_CONTROL_UTIL_H
     18 #define CHRE_PLATFORM_POWER_CONTROL_UTIL_H
     19 
     20 extern "C" {
     21 
     22 #include "qurt_island.h"
     23 
     24 }  // extern "C"
     25 
     26 #include "chre/core/event_loop_manager.h"
     27 #include "chre/platform/slpi/uimg_util.h"
     28 
     29 namespace chre {
     30 
     31 /**
     32  * @return true if we're currently running in micro-image, aka island mode.
     33  */
     34 inline bool slpiInUImage() {
     35   return (qurt_island_get_status() == 1);
     36 }
     37 
     38 /**
     39  * @return true if the successfully made a micro to big image transition.
     40  */
     41 inline bool slpiForceBigImage() {
     42   bool success = false;
     43   if (isSlpiUimgSupported() && slpiInUImage()) {
     44     success = EventLoopManagerSingleton::get()->getEventLoop().
     45         getPowerControlManager().voteBigImage(true);
     46   }
     47 
     48   return success;
     49 }
     50 
     51 /**
     52  * Removes a big image vote from CHRE. Should only be called when the system is
     53  * idle.
     54  *
     55  * @return true if the vote succeeds.
     56  */
     57 inline bool slpiRemoveBigImageVote() {
     58   return EventLoopManagerSingleton::get()->getEventLoop().
     59       getPowerControlManager().voteBigImage(false);
     60 }
     61 
     62 } // namespace chre
     63 
     64 #endif // CHRE_PLATFORM_POWER_CONTROL_UTIL_H
     65