1/*
2* Copyright (c) 2013-14 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// ----------------------------------------------------------------------------
40inline 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
51inline 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// ----------------------------------------------------------------------------
65inline android::status_t screenRefresh() {
66    return sendSingleParam(qService::IQService::SCREEN_REFRESH, 1);
67}
68
69inline android::status_t toggleScreenUpdate(uint32_t on) {
70    return sendSingleParam(qService::IQService::TOGGLE_SCREEN_UPDATES, on);
71}
72
73inline android::status_t setExtOrientation(uint32_t orientation) {
74    return sendSingleParam(qService::IQService::EXTERNAL_ORIENTATION,
75            orientation);
76}
77
78inline android::status_t setBufferMirrorMode(uint32_t enable) {
79    return sendSingleParam(qService::IQService::BUFFER_MIRRORMODE, enable);
80}
81
82inline android::status_t setCameraLaunchStatus(uint32_t on) {
83    return sendSingleParam(qService::IQService::SET_CAMERA_STATUS, on);
84}
85
86inline bool displayBWTransactionPending() {
87    android::status_t err = (android::status_t) android::FAILED_TRANSACTION;
88    bool ret = false;
89    android::sp<qService::IQService> binder = getBinder();
90    android::Parcel inParcel, outParcel;
91    if(binder != NULL) {
92        err = binder->dispatch(qService::IQService::GET_BW_TRANSACTION_STATUS,
93                &inParcel , &outParcel);
94        if(err != android::NO_ERROR){
95          ALOGE("GET_BW_TRANSACTION_STATUS binder call failed err=%d", err);
96          return ret;
97        }
98    }
99    ret = outParcel.readInt32();
100    return ret;
101}
102#endif /* end of include guard: QSERVICEUTILS_H */
103