1 /*
2 * Copyright (C) 2014 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 #define LOG_TAG "ATVAudioPolicyManager"
18 //#define LOG_NDEBUG 0
19 #include <media/AudioParameter.h>
20 #include <media/mediarecorder.h>
21 #include <utils/Log.h>
22 #include <utils/String16.h>
23 #include <utils/String8.h>
24 #include <utils/StrongPointer.h>
25
26 #include "AudioHardwareOutput.h"
27 #include "ATVAudioPolicyManager.h"
28
29 #ifdef REMOTE_CONTROL_INTERFACE
30 #include <IRemoteControlService.h>
31 #endif
32
33
34 namespace android {
35 extern AudioHardwareOutput gAudioHardwareOutput;
36
37 // ----------------------------------------------------------------------------
38 // Common audio policy manager code is implemented in AudioPolicyManager class
39 // ----------------------------------------------------------------------------
40
41 // --- class factory
42
43
createAudioPolicyManager(AudioPolicyClientInterface * clientInterface)44 extern "C" AudioPolicyInterface* createAudioPolicyManager(
45 AudioPolicyClientInterface *clientInterface)
46 {
47 return new ATVAudioPolicyManager(clientInterface);
48 }
49
destroyAudioPolicyManager(AudioPolicyInterface * interface)50 extern "C" void destroyAudioPolicyManager(AudioPolicyInterface *interface)
51 {
52 delete interface;
53 }
54
ATVAudioPolicyManager(AudioPolicyClientInterface * clientInterface)55 ATVAudioPolicyManager::ATVAudioPolicyManager(
56 AudioPolicyClientInterface *clientInterface)
57 : AudioPolicyManager(clientInterface), mForceSubmixInputSelection(false)
58 {
59 }
60
computeVolume(audio_stream_type_t stream,int index,audio_io_handle_t output,audio_devices_t device)61 float ATVAudioPolicyManager::computeVolume(audio_stream_type_t stream,
62 int index,
63 audio_io_handle_t output,
64 audio_devices_t device)
65 {
66 // We only use master volume, so all audio flinger streams
67 // should be set to maximum
68 (void)stream;
69 (void)index;
70 (void)output;
71 (void)device;
72 return 1.0;
73 }
74
setDeviceConnectionState(audio_devices_t device,audio_policy_dev_state_t state,const char * device_address)75 status_t ATVAudioPolicyManager::setDeviceConnectionState(audio_devices_t device,
76 audio_policy_dev_state_t state,
77 const char *device_address)
78 {
79 audio_devices_t tmp = AUDIO_DEVICE_NONE;;
80 ALOGE("setDeviceConnectionState %08x %x %s", device, state,
81 device_address ? device_address : "(null)");
82
83 // If the input device is the remote submix and an address starting with "force=" was
84 // specified, enable "force=1" / disable "force=0" the forced selection of the remote submix
85 // input device over hardware input devices (e.g RemoteControl).
86 if (device == AUDIO_DEVICE_IN_REMOTE_SUBMIX && device_address) {
87 AudioParameter parameters = AudioParameter(String8(device_address));
88 int forceValue;
89 if (parameters.getInt(String8("force"), forceValue) == OK) {
90 mForceSubmixInputSelection = forceValue != 0;
91 }
92 }
93
94 if (audio_is_output_device(device)) {
95 switch (state) {
96 case AUDIO_POLICY_DEVICE_STATE_AVAILABLE:
97 tmp = mAvailableOutputDevices.types() | device;
98 break;
99
100 case AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE:
101 tmp = mAvailableOutputDevices.types() & ~device;
102 break;
103 default:
104 ALOGE("setDeviceConnectionState() invalid state: %x", state);
105 return BAD_VALUE;
106 }
107
108 gAudioHardwareOutput.updateRouting(tmp);
109 tmp = mAvailableOutputDevices.types();
110 }
111
112 status_t ret = 0;
113 if (device != AUDIO_DEVICE_IN_REMOTE_SUBMIX) {
114 ret = AudioPolicyManager::setDeviceConnectionState(
115 device, state, device_address);
116 }
117
118 if (audio_is_output_device(device)) {
119 if (tmp != mAvailableOutputDevices.types())
120 gAudioHardwareOutput.updateRouting(mAvailableOutputDevices.types());
121 }
122
123 return ret;
124 }
125
getDeviceForInputSource(audio_source_t inputSource)126 audio_devices_t ATVAudioPolicyManager::getDeviceForInputSource(audio_source_t inputSource)
127 {
128 uint32_t device = AUDIO_DEVICE_NONE;
129 bool usePhysRemote = true;
130
131 if (inputSource == AUDIO_SOURCE_VOICE_RECOGNITION) {
132 #ifdef REMOTE_CONTROL_INTERFACE
133 // Check if remote is actually connected or we should move on
134 sp<IRemoteControlService> service = IRemoteControlService::getInstance();
135 if (service == NULL) {
136 ALOGV("getDeviceForInputSource No RemoteControl service detected, ignoring");
137 usePhysRemote = false;
138 } else if (!service->hasActiveRemote()) {
139 ALOGV("getDeviceForInputSource No active connected device, passing onto submix");
140 usePhysRemote = false;
141 }
142 #endif
143 ALOGV("getDeviceForInputSource %s %s", usePhysRemote ? "use physical" : "",
144 mForceSubmixInputSelection ? "use virtual" : "");
145 audio_devices_t availableDeviceTypes = mAvailableInputDevices.types() &
146 ~AUDIO_DEVICE_BIT_IN;
147 if (availableDeviceTypes & AUDIO_DEVICE_IN_WIRED_HEADSET &&
148 usePhysRemote) {
149 // User a wired headset (physical remote) if available, connected and active
150 ALOGV("Wired Headset available");
151 device = AUDIO_DEVICE_IN_WIRED_HEADSET;
152 } else if (availableDeviceTypes & AUDIO_DEVICE_IN_REMOTE_SUBMIX &&
153 mForceSubmixInputSelection) {
154 // REMOTE_SUBMIX should always be avaible, let's make sure it's being forced at the moment
155 ALOGV("Virtual remote available");
156 device = AUDIO_DEVICE_IN_REMOTE_SUBMIX;
157 }
158 }
159
160 ALOGV("getDeviceForInputSource() input source %d, device %08x", inputSource, device);
161 return device;
162 }
163
164 } // namespace android
165