1/*
2 * Copyright (C) 2015 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
19#define LOG_TAG "VehicleNetworkListener"
20
21#include <memory>
22
23#include <utils/Errors.h>
24#include <utils/Log.h>
25
26#include <VehicleNetworkProto.pb.h>
27
28#include <IVehicleNetworkListener.h>
29
30#include "VehicleNetworkProtoUtil.h"
31
32namespace android {
33
34enum {
35    ON_EVENTS = IBinder::FIRST_CALL_TRANSACTION,
36    ON_HAL_ERROR,
37    ON_HAL_RESTART,
38};
39
40class BpVehicleNetworkListener : public BpInterface<IVehicleNetworkListener>
41{
42public:
43    BpVehicleNetworkListener(const sp<IBinder> & impl)
44        : BpInterface<IVehicleNetworkListener>(impl) {
45    }
46
47    virtual void onEvents(sp<VehiclePropValueListHolder>& events) {
48        Parcel data, reply;
49        data.writeInterfaceToken(IVehicleNetworkListener::getInterfaceDescriptor());
50        std::unique_ptr<VehiclePropValues> values(new VehiclePropValues());
51        ASSERT_OR_HANDLE_NO_MEMORY(values.get(), return NO_MEMORY);
52        status_t r = VehicleNetworkProtoUtil::toVehiclePropValues(events->getList(), *values.get());
53        if (r != NO_ERROR) {
54            ALOGE("onEvents: toVehiclePropValues failed %d", r);
55            return;
56        }
57        data.writeInt32(1); // for java compatibility
58        WritableBlobHolder blob(new Parcel::WritableBlob());
59        int size = values->ByteSize();
60        data.writeInt32(size);
61        data.writeBlob(size, false, blob.blob);
62        values->SerializeToArray(blob.blob->data(), size);
63        remote()->transact(ON_EVENTS, data, &reply);
64    }
65
66    virtual void onHalError(int32_t errorCode, int32_t property, int32_t operation) {
67        Parcel data, reply;
68        data.writeInterfaceToken(IVehicleNetworkListener::getInterfaceDescriptor());
69        data.writeInt32(errorCode);
70        data.writeInt32(property);
71        data.writeInt32(operation);
72        remote()->transact(ON_HAL_ERROR, data, &reply);
73    }
74
75    virtual void onHalRestart(bool inMocking) {
76        Parcel data, reply;
77        data.writeInterfaceToken(IVehicleNetworkListener::getInterfaceDescriptor());
78        data.writeInt32(inMocking ? 1 : 0);
79        remote()->transact(ON_HAL_RESTART, data, &reply);
80    }
81};
82
83IMPLEMENT_META_INTERFACE(VehicleNetworkListener, "com.android.car.vehiclenetwork.IVehicleNetworkListener");
84
85// ----------------------------------------------------------------------
86
87status_t BnVehicleNetworkListener::onTransact(uint32_t code, const Parcel& data, Parcel* reply,
88        uint32_t flags) {
89    status_t r;
90    switch (code) {
91        case ON_EVENTS: {
92            CHECK_INTERFACE(IVehicleNetworkListener, data, reply);
93            if (data.readInt32() == 0) { // java side allows passing null with this.
94                return BAD_VALUE;
95            }
96            List<vehicle_prop_value_t*>* list = new List<vehicle_prop_value_t*>();
97            ASSERT_OR_HANDLE_NO_MEMORY(list, return NO_MEMORY);
98            sp<VehiclePropValueListHolder> holder(new VehiclePropValueListHolder(list));
99            ASSERT_OR_HANDLE_NO_MEMORY(holder.get(), return NO_MEMORY);
100            ReadableBlobHolder blob(new Parcel::ReadableBlob());
101            ASSERT_OR_HANDLE_NO_MEMORY(blob.blob, return NO_MEMORY);
102            int32_t size = data.readInt32();
103            r = data.readBlob(size, blob.blob);
104            if (r != NO_ERROR) {
105                ALOGE("onEvents: cannot read blob");
106                return r;
107            }
108            std::unique_ptr<VehiclePropValues> v(new VehiclePropValues());
109            ASSERT_OR_HANDLE_NO_MEMORY(v.get(), return NO_MEMORY);
110            if (!v->ParseFromArray(blob.blob->data(), size)) {
111                ALOGE("onEvents: cannot parse data");
112                return BAD_VALUE;
113            }
114            r = VehicleNetworkProtoUtil::fromVehiclePropValues(*v.get(), *list);
115            if (r != NO_ERROR) {
116                ALOGE("onEvents: cannot convert data");
117                return BAD_VALUE;
118            }
119            onEvents(holder);
120            return NO_ERROR;
121        } break;
122        case ON_HAL_ERROR: {
123            CHECK_INTERFACE(IVehicleNetworkListener, data, reply);
124            int32_t errorCode = data.readInt32();
125            int32_t property = data.readInt32();
126            int32_t operation = data.readInt32();
127            onHalError(errorCode, property, operation);
128            return NO_ERROR;
129        } break;
130        case ON_HAL_RESTART: {
131            CHECK_INTERFACE(IVehicleNetworkListener, data, reply);
132            bool inMocking = (data.readInt32() == 1);
133            onHalRestart(inMocking);
134            return NO_ERROR;
135        } break;
136        default:
137            return BBinder::onTransact(code, data, reply, flags);
138    }
139}
140
141}; // namespace android
142