1 /*
2 * Copyright (C) 2010 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 #include <stdint.h>
18 #include <sys/types.h>
19
20 #include <utils/Errors.h>
21 #include <utils/RefBase.h>
22 #include <utils/Timers.h>
23
24 #include <binder/Parcel.h>
25 #include <binder/IInterface.h>
26
27 #include <gui/ISensorEventConnection.h>
28 #include <gui/BitTube.h>
29
30 namespace android {
31 // ----------------------------------------------------------------------------
32
33 enum {
34 GET_SENSOR_CHANNEL = IBinder::FIRST_CALL_TRANSACTION,
35 ENABLE_DISABLE,
36 SET_EVENT_RATE,
37 FLUSH_SENSOR
38 };
39
40 class BpSensorEventConnection : public BpInterface<ISensorEventConnection>
41 {
42 public:
BpSensorEventConnection(const sp<IBinder> & impl)43 BpSensorEventConnection(const sp<IBinder>& impl)
44 : BpInterface<ISensorEventConnection>(impl)
45 {
46 }
47
getSensorChannel() const48 virtual sp<BitTube> getSensorChannel() const
49 {
50 Parcel data, reply;
51 data.writeInterfaceToken(ISensorEventConnection::getInterfaceDescriptor());
52 remote()->transact(GET_SENSOR_CHANNEL, data, &reply);
53 return new BitTube(reply);
54 }
55
enableDisable(int handle,bool enabled,nsecs_t samplingPeriodNs,nsecs_t maxBatchReportLatencyNs,int reservedFlags)56 virtual status_t enableDisable(int handle, bool enabled, nsecs_t samplingPeriodNs,
57 nsecs_t maxBatchReportLatencyNs, int reservedFlags)
58 {
59 Parcel data, reply;
60 data.writeInterfaceToken(ISensorEventConnection::getInterfaceDescriptor());
61 data.writeInt32(handle);
62 data.writeInt32(enabled);
63 data.writeInt64(samplingPeriodNs);
64 data.writeInt64(maxBatchReportLatencyNs);
65 data.writeInt32(reservedFlags);
66 remote()->transact(ENABLE_DISABLE, data, &reply);
67 return reply.readInt32();
68 }
69
setEventRate(int handle,nsecs_t ns)70 virtual status_t setEventRate(int handle, nsecs_t ns)
71 {
72 Parcel data, reply;
73 data.writeInterfaceToken(ISensorEventConnection::getInterfaceDescriptor());
74 data.writeInt32(handle);
75 data.writeInt64(ns);
76 remote()->transact(SET_EVENT_RATE, data, &reply);
77 return reply.readInt32();
78 }
79
flush()80 virtual status_t flush() {
81 Parcel data, reply;
82 data.writeInterfaceToken(ISensorEventConnection::getInterfaceDescriptor());
83 remote()->transact(FLUSH_SENSOR, data, &reply);
84 return reply.readInt32();
85 }
86 };
87
88 IMPLEMENT_META_INTERFACE(SensorEventConnection, "android.gui.SensorEventConnection");
89
90 // ----------------------------------------------------------------------------
91
onTransact(uint32_t code,const Parcel & data,Parcel * reply,uint32_t flags)92 status_t BnSensorEventConnection::onTransact(
93 uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
94 {
95 switch(code) {
96 case GET_SENSOR_CHANNEL: {
97 CHECK_INTERFACE(ISensorEventConnection, data, reply);
98 sp<BitTube> channel(getSensorChannel());
99 channel->writeToParcel(reply);
100 return NO_ERROR;
101 } break;
102 case ENABLE_DISABLE: {
103 CHECK_INTERFACE(ISensorEventConnection, data, reply);
104 int handle = data.readInt32();
105 int enabled = data.readInt32();
106 nsecs_t samplingPeriodNs = data.readInt64();
107 nsecs_t maxBatchReportLatencyNs = data.readInt64();
108 int reservedFlags = data.readInt32();
109 status_t result = enableDisable(handle, enabled, samplingPeriodNs,
110 maxBatchReportLatencyNs, reservedFlags);
111 reply->writeInt32(result);
112 return NO_ERROR;
113 } break;
114 case SET_EVENT_RATE: {
115 CHECK_INTERFACE(ISensorEventConnection, data, reply);
116 int handle = data.readInt32();
117 int ns = data.readInt64();
118 status_t result = setEventRate(handle, ns);
119 reply->writeInt32(result);
120 return NO_ERROR;
121 } break;
122 case FLUSH_SENSOR: {
123 CHECK_INTERFACE(ISensorEventConnection, data, reply);
124 status_t result = flush();
125 reply->writeInt32(result);
126 return NO_ERROR;
127 } break;
128 }
129 return BBinder::onTransact(code, data, reply, flags);
130 }
131
132 // ----------------------------------------------------------------------------
133 }; // namespace android
134