audio policy: fix several device descriptor issues.

- checkOutputsForDevice() should only clear device descriptor attributes
if the device is digital.
- checkInputsForDevice() did not clear device descriptor attributes at all.
- AudioPort::clearCapabilities() and importAudioPort() should not
manage gains as these are device specific.
- importAudioPort() should load a default port config.

Bug: 21990937.
Change-Id: Ida762ed8f9baaabae392cb4291eff1a8d3009751

4 files changed, 9 insertions, 17 deletions

diff --git a/services/audiopolicy/common/managerdefinitions/include/AudioPort.h b/services/audiopolicy/common/managerdefinitions/include/AudioPort.h
index 82e2c43..4fdf5b4 100644
--- a/services/audiopolicy/common/managerdefinitions/include/AudioPort.h
+++ b/services/audiopolicy/common/managerdefinitions/include/AudioPort.h
@@ -42,7 +42,7 @@ public:
 
     virtual void toAudioPort(struct audio_port *port) const;
 
-    void importAudioPort(const sp<AudioPort> port);
+    virtual void importAudioPort(const sp<AudioPort> port);
     void clearCapabilities();
 
     void loadSamplingRates(char *name);
diff --git a/services/audiopolicy/common/managerdefinitions/include/DeviceDescriptor.h b/services/audiopolicy/common/managerdefinitions/include/DeviceDescriptor.h
index d1a2f4f..c42ece6 100644
--- a/services/audiopolicy/common/managerdefinitions/include/DeviceDescriptor.h
+++ b/services/audiopolicy/common/managerdefinitions/include/DeviceDescriptor.h
@@ -44,6 +44,7 @@ public:
     virtual void attach(const sp<HwModule>& module);
     virtual void loadGains(cnode *root);
     virtual void toAudioPort(struct audio_port *port) const;
+    virtual void importAudioPort(const sp<AudioPort> port);
 
     audio_port_handle_t getId() const;
     audio_devices_t type() const { return mDeviceType; }
diff --git a/services/audiopolicy/common/managerdefinitions/src/AudioPort.cpp b/services/audiopolicy/common/managerdefinitions/src/AudioPort.cpp
index afcd073..4e24f19 100644
--- a/services/audiopolicy/common/managerdefinitions/src/AudioPort.cpp
+++ b/services/audiopolicy/common/managerdefinitions/src/AudioPort.cpp
@@ -151,28 +151,12 @@ void AudioPort::importAudioPort(const sp<AudioPort> port) {
             }
         }
     }
-    for (size_t k = 0 ; k < port->mGains.size() ; k++) {
-        sp<AudioGain> gain = port->mGains.itemAt(k);
-        if (gain != 0) {
-            bool hasGain = false;
-            for (size_t l = 0 ; l < mGains.size() ; l++) {
-                if (gain == mGains.itemAt(l)) {
-                    hasGain = true;
-                    break;
-                }
-            }
-            if (!hasGain) { // never import a gain twice
-                mGains.add(gain);
-            }
-        }
-    }
 }
 
 void AudioPort::clearCapabilities() {
     mChannelMasks.clear();
     mFormats.clear();
     mSamplingRates.clear();
-    mGains.clear();
 }
 
 void AudioPort::loadSamplingRates(char *name)
diff --git a/services/audiopolicy/common/managerdefinitions/src/DeviceDescriptor.cpp b/services/audiopolicy/common/managerdefinitions/src/DeviceDescriptor.cpp
index 797077a..1f1fca3 100644
--- a/services/audiopolicy/common/managerdefinitions/src/DeviceDescriptor.cpp
+++ b/services/audiopolicy/common/managerdefinitions/src/DeviceDescriptor.cpp
@@ -301,6 +301,13 @@ void DeviceDescriptor::toAudioPort(struct audio_port *port) const
     strncpy(port->ext.device.address, mAddress.string(), AUDIO_DEVICE_MAX_ADDRESS_LEN);
 }
 
+void DeviceDescriptor::importAudioPort(const sp<AudioPort> port) {
+    AudioPort::importAudioPort(port);
+    mSamplingRate = port->pickSamplingRate();
+    mFormat = port->pickFormat();
+    mChannelMask = port->pickChannelMask();
+}
+
 status_t DeviceDescriptor::dump(int fd, int spaces, int index) const
 {
     const size_t SIZE = 256;