Call getAudioPort to get supported attributes for audio devices.

GetAudioPort API will return the supported attributes for the devices.
Call getAudioPort to get the supported attributes for the audio
devices so that it is no needed to get supported attributes via
getParameters API.

Bug: 160352965
Test: make
Test: atest audiopolicy_tests AudioPlaybackCaptureTest
Change-Id: Icdfe76e15066bbff10308d6dfd1cf742da33fec9
diff --git a/services/audioflinger/AudioFlinger.h b/services/audioflinger/AudioFlinger.h
index 2ff6af5..14ed2ad 100644
--- a/services/audioflinger/AudioFlinger.h
+++ b/services/audioflinger/AudioFlinger.h
@@ -266,7 +266,7 @@
                                     struct audio_port *ports);
 
     /* Get attributes for a given audio port */
-    virtual status_t getAudioPort(struct audio_port *port);
+    virtual status_t getAudioPort(struct audio_port_v7 *port);
 
     /* Create an audio patch between several source and sink ports */
     virtual status_t createAudioPatch(const struct audio_patch *patch,
diff --git a/services/audioflinger/AudioHwDevice.cpp b/services/audioflinger/AudioHwDevice.cpp
index dda164c..16b25f6 100644
--- a/services/audioflinger/AudioHwDevice.cpp
+++ b/services/audioflinger/AudioHwDevice.cpp
@@ -98,5 +98,9 @@
     return mHwDevice->supportsAudioPatches(&result) == OK ? result : false;
 }
 
+status_t AudioHwDevice::getAudioPort(struct audio_port_v7 *port) const {
+    return mHwDevice->getAudioPort(port);
+}
+
 
 }; // namespace android
diff --git a/services/audioflinger/AudioHwDevice.h b/services/audioflinger/AudioHwDevice.h
index 6709d17..fc2c693 100644
--- a/services/audioflinger/AudioHwDevice.h
+++ b/services/audioflinger/AudioHwDevice.h
@@ -83,6 +83,8 @@
 
     bool supportsAudioPatches() const;
 
+    status_t getAudioPort(struct audio_port_v7 *port) const;
+
 private:
     const audio_module_handle_t mHandle;
     const char * const          mModuleName;
diff --git a/services/audioflinger/PatchPanel.cpp b/services/audioflinger/PatchPanel.cpp
index b58fd8b..b956b96 100644
--- a/services/audioflinger/PatchPanel.cpp
+++ b/services/audioflinger/PatchPanel.cpp
@@ -55,8 +55,7 @@
 }
 
 /* Get supported attributes for a given audio port */
-status_t AudioFlinger::getAudioPort(struct audio_port *port)
-{
+status_t AudioFlinger::getAudioPort(struct audio_port_v7 *port) {
     Mutex::Autolock _l(mLock);
     return mPatchPanel.getAudioPort(port);
 }
@@ -103,10 +102,22 @@
 }
 
 /* Get supported attributes for a given audio port */
-status_t AudioFlinger::PatchPanel::getAudioPort(struct audio_port *port __unused)
+status_t AudioFlinger::PatchPanel::getAudioPort(struct audio_port_v7 *port)
 {
-    ALOGV(__func__);
-    return NO_ERROR;
+    if (port->type != AUDIO_PORT_TYPE_DEVICE) {
+        // Only query the HAL when the port is a device.
+        // TODO: implement getAudioPort for mix.
+        return INVALID_OPERATION;
+    }
+    AudioHwDevice* hwDevice = findAudioHwDeviceByModule(port->ext.device.hw_module);
+    if (hwDevice == nullptr) {
+        ALOGW("%s cannot find hw module %d", __func__, port->ext.device.hw_module);
+        return BAD_VALUE;
+    }
+    if (!hwDevice->supportsAudioPatches()) {
+        return INVALID_OPERATION;
+    }
+    return hwDevice->getAudioPort(port);
 }
 
 /* Connect a patch between several source and sink ports */
diff --git a/services/audioflinger/PatchPanel.h b/services/audioflinger/PatchPanel.h
index 89d4eb1..2568dd3 100644
--- a/services/audioflinger/PatchPanel.h
+++ b/services/audioflinger/PatchPanel.h
@@ -52,7 +52,7 @@
                                     struct audio_port *ports);
 
     /* Get supported attributes for a given audio port */
-    status_t getAudioPort(struct audio_port *port);
+    status_t getAudioPort(struct audio_port_v7 *port);
 
     /* Create a patch between several source and sink ports */
     status_t createAudioPatch(const struct audio_patch *patch,