1 /*
2 * Copyright (c) 2013-14, 2018, 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
30 #ifndef QSERVICEUTILS_H
31 #define QSERVICEUTILS_H
32 #include <binder/Parcel.h>
33 #include <binder/IServiceManager.h>
34 #include <utils/RefBase.h>
35 #include <IQService.h>
36
37 // ----------------------------------------------------------------------------
38 // Helpers
39 // ----------------------------------------------------------------------------
getBinder()40 inline android::sp<qService::IQService> getBinder() {
41 android::sp<android::IServiceManager> sm = android::defaultServiceManager();
42 android::sp<qService::IQService> binder =
43 android::interface_cast<qService::IQService>
44 (sm->getService(android::String16("display.qservice")));
45 if (binder == NULL) {
46 ALOGE("%s: invalid binder object", __FUNCTION__);
47 }
48 return binder;
49 }
50
sendSingleParam(uint32_t command,uint32_t value)51 inline android::status_t sendSingleParam(uint32_t command, uint32_t value) {
52 android::status_t err = (android::status_t) android::FAILED_TRANSACTION;
53 android::sp<qService::IQService> binder = getBinder();
54 android::Parcel inParcel, outParcel;
55 inParcel.writeInt32(value);
56 if(binder != NULL) {
57 err = binder->dispatch(command, &inParcel , &outParcel);
58 }
59 return err;
60 }
61
62 // ----------------------------------------------------------------------------
63 // Convenience wrappers that clients can call
64 // ----------------------------------------------------------------------------
screenRefresh(int dpy)65 inline android::status_t screenRefresh(int dpy) {
66 return sendSingleParam(qService::IQService::SCREEN_REFRESH, dpy);
67 }
68
toggleScreenUpdate(uint32_t on)69 inline android::status_t toggleScreenUpdate(uint32_t on) {
70 return sendSingleParam(qService::IQService::TOGGLE_SCREEN_UPDATES, on);
71 }
72
setCameraLaunchStatus(uint32_t on)73 inline android::status_t setCameraLaunchStatus(uint32_t on) {
74 return sendSingleParam(qService::IQService::SET_CAMERA_STATUS, on);
75 }
76
displayBWTransactionPending()77 inline bool displayBWTransactionPending() {
78 android::status_t err = (android::status_t) android::FAILED_TRANSACTION;
79 bool ret = false;
80 android::sp<qService::IQService> binder = getBinder();
81 android::Parcel inParcel, outParcel;
82 if(binder != NULL) {
83 err = binder->dispatch(qService::IQService::GET_BW_TRANSACTION_STATUS,
84 &inParcel , &outParcel);
85 if(err != android::NO_ERROR){
86 ALOGE("GET_BW_TRANSACTION_STATUS binder call failed err=%d", err);
87 return ret;
88 }
89 }
90 ret = outParcel.readInt32();
91 return ret;
92 }
93 #endif /* end of include guard: QSERVICEUTILS_H */
94