1/*
2 *  Copyright (c) 2012-2014, 2016, 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#include <QService.h>
31#include <binder/Parcel.h>
32#include <binder/IPCThreadState.h>
33
34#define QSERVICE_DEBUG 0
35
36using namespace android;
37
38namespace qService {
39
40QService* QService::sQService = NULL;
41// ----------------------------------------------------------------------------
42QService::QService()
43{
44    ALOGD_IF(QSERVICE_DEBUG, "QService Constructor invoked");
45}
46
47QService::~QService()
48{
49    ALOGD_IF(QSERVICE_DEBUG,"QService Destructor invoked");
50}
51
52void QService::connect(const sp<qClient::IQClient>& client) {
53    ALOGD_IF(QSERVICE_DEBUG,"HWC client connected");
54    mClient = client;
55}
56
57void QService::connect(const sp<qClient::IQHDMIClient>& client) {
58    ALOGD_IF(QSERVICE_DEBUG,"HDMI client connected");
59    mHDMIClient = client;
60}
61
62status_t QService::dispatch(uint32_t command, const Parcel* inParcel,
63        Parcel* outParcel) {
64    status_t err = (status_t) FAILED_TRANSACTION;
65    IPCThreadState* ipc = IPCThreadState::self();
66    //Rewind parcel in case we're calling from the same process
67    bool sameProcess = (ipc->getCallingPid() == getpid());
68    if(sameProcess)
69        inParcel->setDataPosition(0);
70    if (mClient.get()) {
71        ALOGD_IF(QSERVICE_DEBUG, "Dispatching command: %d", command);
72        err = mClient->notifyCallback(command, inParcel, outParcel);
73        //Rewind parcel in case we're calling from the same process
74        if (sameProcess)
75            outParcel->setDataPosition(0);
76    }
77    return err;
78}
79
80void QService::onHdmiHotplug(int connected) {
81    if(mHDMIClient.get()) {
82        ALOGD_IF(QSERVICE_DEBUG, "%s: HDMI hotplug", __FUNCTION__);
83        mHDMIClient->onHdmiHotplug(connected);
84    } else {
85        ALOGW("%s: Failed to get a valid HDMI client", __FUNCTION__);
86    }
87}
88
89void QService::onCECMessageReceived(char *msg, ssize_t len) {
90    if(mHDMIClient.get()) {
91        ALOGD_IF(QSERVICE_DEBUG, "%s: CEC message received", __FUNCTION__);
92        mHDMIClient->onCECMessageRecieved(msg, len);
93    } else {
94        ALOGW("%s: Failed to get a valid HDMI client", __FUNCTION__);
95    }
96}
97
98
99void QService::init()
100{
101    if(!sQService) {
102        sQService = new QService();
103        sp<IServiceManager> sm = defaultServiceManager();
104        sm->addService(String16("display.qservice"), sQService);
105        if(sm->checkService(String16("display.qservice")) != NULL)
106            ALOGD_IF(QSERVICE_DEBUG, "adding display.qservice succeeded");
107        else
108            ALOGD_IF(QSERVICE_DEBUG, "adding display.qservice failed");
109    }
110}
111
112}
113