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 #ifndef ANDROID_HARDWARE_RADIO_H
18 #define ANDROID_HARDWARE_RADIO_H
19 
20 #include <binder/IBinder.h>
21 #include <utils/threads.h>
22 #include <radio/RadioCallback.h>
23 #include <radio/IRadio.h>
24 #include <radio/IRadioService.h>
25 #include <radio/IRadioClient.h>
26 #include <system/radio.h>
27 
28 namespace android {
29 
30 class MemoryDealer;
31 
32 class Radio : public BnRadioClient,
33                         public IBinder::DeathRecipient
34 {
35 public:
36 
37     virtual ~Radio();
38 
39     static  status_t listModules(struct radio_properties *properties,
40                                  uint32_t *numModules);
41     static  sp<Radio> attach(radio_handle_t handle,
42                              const struct radio_band_config *config,
43                              bool withAudio,
44                              const sp<RadioCallback>& callback);
45 
46 
47             void detach();
48 
49             status_t setConfiguration(const struct radio_band_config *config);
50 
51             status_t getConfiguration(struct radio_band_config *config);
52 
53             status_t setMute(bool mute);
54 
55             status_t getMute(bool *mute);
56 
57             status_t step(radio_direction_t direction, bool skipSubChannel);
58 
59             status_t scan(radio_direction_t direction, bool skipSubChannel);
60 
61             status_t tune(unsigned int channel, unsigned int subChannel);
62 
63             status_t cancel();
64 
65             status_t getProgramInformation(struct radio_program_info *info);
66 
67             status_t hasControl(bool *hasControl);
68 
69             // BpRadioClient
70             virtual void onEvent(const sp<IMemory>& eventMemory);
71 
72             //IBinder::DeathRecipient
73             virtual void binderDied(const wp<IBinder>& who);
74 
75 private:
76             Radio(radio_handle_t handle,
77                             const sp<RadioCallback>&);
78             static const sp<IRadioService>& getRadioService();
79 
80             Mutex                   mLock;
81             sp<IRadio>              mIRadio;
82             const radio_handle_t    mHandle;
83             sp<RadioCallback>       mCallback;
84 };
85 
86 }; // namespace android
87 
88 #endif //ANDROID_HARDWARE_RADIO_H
89