1 /*
2  * Copyright (c) 2019, The Linux Foundation. All rights reserved.
3  *
4  * Redistribution and use in source and binary forms, with or without
5  * modification, are permitted provided that the following conditions are
6  * met:
7  *    * Redistributions of source code must retain the above copyright
8  *      notice, this list of conditions and the following disclaimer.
9  *    * Redistributions in binary form must reproduce the above
10  *      copyright notice, this list of conditions and the following
11  *      disclaimer in the documentation and/or other materials provided
12  *      with the distribution.
13  *    * Neither the name of The Linux Foundation. nor the names of its
14  *      contributors may be used to endorse or promote products derived
15  *      from this software without specific prior written permission.
16  *
17  * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
18  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
19  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
21  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
22  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
23  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
24  * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
25  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
26  * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
27  * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28  */
29 #include <hidl/LegacySupport.h>
30 #include "QtiComposer.h"
31 
32 using android::ProcessState;
33 using android::sp;
34 using android::hardware::configureRpcThreadpool;
35 using android::hardware::joinRpcThreadpool;
36 using android::hardware::graphics::composer::V2_3::IComposer;
37 using vendor::qti::hardware::display::composer::V3_0::IQtiComposer;
38 using vendor::qti::hardware::display::composer::V3_0::implementation::QtiComposer;
39 
main(int,char **)40 int main(int, char **) {
41   // TODO(user): double-check for SCHED_FIFO logic
42   // the conventional HAL might start binder services
43   ProcessState::initWithDriver("/dev/vndbinder");
44   sp<ProcessState> ps(ProcessState::self());
45   ps->setThreadPoolMaxThreadCount(4);
46   ps->startThreadPool();
47 
48   // same as SF main thread
49   struct sched_param param = {0};
50   param.sched_priority = 2;
51   if (sched_setscheduler(0, SCHED_FIFO | SCHED_RESET_ON_FORK, &param) != 0) {
52     ALOGE("Couldn't set SCHED_FIFO: %d", errno);
53   }
54 
55   sp<IQtiComposer> composer = QtiComposer::initialize();
56   if (composer == nullptr) {
57     ALOGE("Cannot initialize composer");
58     return -EINVAL;
59   }
60 
61   configureRpcThreadpool(4, true /*callerWillJoin*/);
62   if (composer->registerAsService() != android::OK) {
63     ALOGE("Cannot register QTI composer service");
64     return -EINVAL;
65   }
66 
67   ALOGI("Initialized qti-composer");
68   joinRpcThreadpool();
69   return 0;
70 }
71