commit e1715a465a29db625da9d0ea365edf371e39e201
author Eric Laurent <elaurent@google.com> Tue May 20 11:30:42 2014 -0700
committer Eric Laurent <elaurent@google.com> Fri May 30 17:22:58 2014 -0700
tree 771fdda7b99935e05e7b3c36487abf523930dd34
parent 1afeecb88bea660b2c10b2096be0fd02433303ce

audio policy: add audio port gain control

Implement setAudioPortConfig() API to configure an
audio port.
Currently limited to gain control.

Bug: 14815883.

Change-Id: Ic1b268e5ba5c277e9f5b8fa63c81dd7c0b250024

services/audiopolicy/AudioPolicyService.cpp

diff --git a/services/audiopolicy/AudioPolicyService.cpp b/services/audiopolicy/AudioPolicyService.cpp
index f3d92ed..a2a0461 100644
--- a/services/audiopolicy/AudioPolicyService.cpp
+++ b/services/audiopolicy/AudioPolicyService.cpp
@@ -226,6 +226,12 @@
     }
 }
 
+status_t AudioPolicyService::clientSetAudioPortConfig(const struct audio_port_config *config,
+                                                      int delayMs)
+{
+    return mAudioCommandThread->setAudioPortConfigCommand(config, delayMs);
+}
+
 AudioPolicyService::NotificationClient::NotificationClient(const sp<AudioPolicyService>& service,
                                                      const sp<IAudioPolicyServiceClient>& client,
                                                      uid_t uid)
@@ -506,6 +512,16 @@
                     svc->doOnAudioPatchListUpdate();
                     mLock.lock();
                     }break;
+                case SET_AUDIOPORT_CONFIG: {
+                    SetAudioPortConfigData *data = (SetAudioPortConfigData *)command->mParam.get();
+                    ALOGV("AudioCommandThread() processing set port config");
+                    sp<IAudioFlinger> af = AudioSystem::get_audio_flinger();
+                    if (af == 0) {
+                        command->mStatus = PERMISSION_DENIED;
+                    } else {
+                        command->mStatus = af->setAudioPortConfig(&data->mConfig);
+                    }
+                    } break;
                 default:
                     ALOGW("AudioCommandThread() unknown command %d", command->mCommand);
                 }
@@ -716,6 +732,19 @@
     sendCommand(command);
 }
 
+status_t AudioPolicyService::AudioCommandThread::setAudioPortConfigCommand(
+                                            const struct audio_port_config *config, int delayMs)
+{
+    sp<AudioCommand> command = new AudioCommand();
+    command->mCommand = SET_AUDIOPORT_CONFIG;
+    SetAudioPortConfigData *data = new SetAudioPortConfigData();
+    data->mConfig = *config;
+    command->mParam = data;
+    command->mWaitStatus = true;
+    ALOGV("AudioCommandThread() adding set port config delay %d", delayMs);
+    return sendCommand(command, delayMs);
+}
+
 status_t AudioPolicyService::AudioCommandThread::sendCommand(sp<AudioCommand>& command, int delayMs)
 {
     {