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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 /**
     18  * Defines the FastRPC interface between CHRE running on the SLPI and the host
     19  * daemon running on the AP.
     20  *
     21  * Note that the interface name gets prefixed to the function names in the
     22  * generated sources, with an underscore separating them.
     23  *
     24  * Refer to the implementations of these functions in the CHRE code that runs on
     25  * the SLPI for documentation covering the parameters, return values, etc.
     26  */
     27 interface chre_slpi {
     28   long start_thread();
     29   long wait_on_thread_exit();
     30   long initialize_reverse_monitor();
     31   long stop_thread();
     32 
     33   long get_message_to_host(rout sequence<octet> buffer,
     34                            rout unsigned long messageLen);
     35 
     36   long deliver_message_from_host(in sequence<octet> message);
     37 };
     38