gsi: sysbta: Implement all existing audio HAL versions

This is needed because libaudiohal.so can only interact with one HAL
version at a time (loading only one of the libaudiohal@version.so
implementations), so only the interface that matches the stock HAL
version will be used. libaudiohal decides which version to use by
looking through the interfaces whose variant is `default` and picking
the highest versioned one, so our hal will not interfere in the process
(because we use `sysbta` as our variant).

audio/hal/Android.bp

@@ -37,6 +37,52 @@ cc_defaults {
     ]
 }
 
+cc_library_shared {
+    name: "android.hardware.audio@2.0-impl-system",
+    defaults: ["android.hardware.audio-impl-system_default"],
+    shared_libs: [
+        "android.hardware.audio@2.0",
+        "android.hardware.audio@2.0-util",
+        "android.hardware.audio.common@2.0",
+        "android.hardware.audio.common@2.0-util",
+    ],
+    cflags: [
+        "-DMAJOR_VERSION=2",
+        "-DMINOR_VERSION=0",
+        "-include common/all-versions/VersionMacro.h",
+    ],
+}
+cc_library_shared {
+    name: "android.hardware.audio@4.0-impl-system",
+    defaults: ["android.hardware.audio-impl-system_default"],
+    shared_libs: [
+        "android.hardware.audio@4.0",
+        "android.hardware.audio@4.0-util",
+        "android.hardware.audio.common@4.0",
+        "android.hardware.audio.common@4.0-util",
+    ],
+    cflags: [
+        "-DMAJOR_VERSION=4",
+        "-DMINOR_VERSION=0",
+        "-include common/all-versions/VersionMacro.h",
+    ],
+}
+cc_library_shared {
+    name: "android.hardware.audio@5.0-impl-system",
+    defaults: ["android.hardware.audio-impl-system_default"],
+    shared_libs: [
+        "android.hardware.audio@5.0",
+        "android.hardware.audio@5.0-util",
+        "android.hardware.audio.common@5.0",
+        "android.hardware.audio.common@5.0-util",
+    ],
+    cflags: [
+        "-DMAJOR_VERSION=5",
+        "-DMINOR_VERSION=0",
+        "-include common/all-versions/VersionMacro.h",
+    ],
+}
+
 cc_library_shared {
     name: "android.hardware.audio@6.0-impl-system",
     defaults: ["android.hardware.audio-impl-system_default"],
@@ -49,6 +95,43 @@ cc_library_shared {
     cflags: [
         "-DMAJOR_VERSION=6",
         "-DMINOR_VERSION=0",
+        "-include common/all-versions/VersionMacro.h",
+    ],
+}
+
+cc_library_shared {
+    name: "android.hardware.audio@7.0-impl-system",
+    defaults: ["android.hardware.audio-impl-system_default"],
+    shared_libs: [
+        "android.hardware.audio@7.0",
+        "android.hardware.audio@7.0-util",
+        "android.hardware.audio.common@7.0",
+        "android.hardware.audio.common@7.0-enums",
+        "android.hardware.audio.common@7.0-util",
+        "libbase",
+    ],
+    cflags: [
+        "-DMAJOR_VERSION=7",
+        "-DMINOR_VERSION=0",
+        "-include common/all-versions/VersionMacro.h",
+    ],
+}
+
+cc_library_shared {
+    name: "android.hardware.audio@7.1-impl-system",
+    defaults: ["android.hardware.audio-impl-system_default"],
+    shared_libs: [
+        "android.hardware.audio@7.0",
+        "android.hardware.audio@7.1",
+        "android.hardware.audio@7.1-util",
+        "android.hardware.audio.common@7.0",
+        "android.hardware.audio.common@7.1-enums",
+        "android.hardware.audio.common@7.1-util",
+        "libbase",
+    ],
+    cflags: [
+        "-DMAJOR_VERSION=7",
+        "-DMINOR_VERSION=1",
         "-DCOMMON_TYPES_MINOR_VERSION=0",
         "-DCORE_TYPES_MINOR_VERSION=0",
         "-include common/all-versions/VersionMacro.h",

bluetooth/audio/hal/Android.bp

@@ -30,6 +30,11 @@ cc_binary {
     ],
     required: [
         // Audio HAL impls
+        "android.hardware.audio@2.0-impl-system",
+        "android.hardware.audio@4.0-impl-system",
+        "android.hardware.audio@5.0-impl-system",
         "android.hardware.audio@6.0-impl-system",
+        "android.hardware.audio@7.0-impl-system",
+        "android.hardware.audio@7.1-impl-system",
     ],
 }

bluetooth/audio/hal/bluetooth_audio_system.xml

@@ -7,6 +7,11 @@
     <hal>
         <name>android.hardware.audio</name>
         <transport>hwbinder</transport>
+        <fqname>@2.0::IDevicesFactory/sysbta</fqname>
+        <fqname>@4.0::IDevicesFactory/sysbta</fqname>
+        <fqname>@5.0::IDevicesFactory/sysbta</fqname>
         <fqname>@6.0::IDevicesFactory/sysbta</fqname>
+        <fqname>@7.0::IDevicesFactory/sysbta</fqname>
+        <fqname>@7.1::IDevicesFactory/sysbta</fqname>
     </hal>
 </manifest>

bluetooth/audio/hal/service_system.cpp

@@ -23,24 +23,14 @@
 #include <android/binder_process.h>
 #include <utils/Log.h>
 #include <hidl/HidlTransportSupport.h>
-//#include <hidl/LegacySupport.h>
 #include <hwbinder/ProcessState.h>
 #include <binder/ProcessState.h>
 
-//#include PATH(android/hardware/audio/FILE_VERSION/IDevicesFactory.h)
-
-//#include <hardware/audio.h>
-
 #include "BluetoothAudioProviderFactory.h"
-//#include "DevicesFactory.h"
 
-//using namespace android::hardware;
 using ::aidl::android::hardware::bluetooth::audio::
     BluetoothAudioProviderFactory;
 
-//using ::android::hardware::audio::CPP_VERSION::implementation::DevicesFactory;
-//using namespace ::android::hardware::audio::CPP_VERSION;
-
 #if defined(__LP64__)
 #define HAL_LIBRARY_PATH "/system/lib64/hw"
 #else
@@ -49,7 +39,12 @@ using ::aidl::android::hardware::bluetooth::audio::
 
 void registerAudioInterfaces() {
   const char *interface_libs[] = {
+    "android.hardware.audio@2.0-impl-system.so",
+    "android.hardware.audio@4.0-impl-system.so",
+    "android.hardware.audio@5.0-impl-system.so",
     "android.hardware.audio@6.0-impl-system.so",
+    "android.hardware.audio@7.0-impl-system.so",
+    "android.hardware.audio@7.1-impl-system.so",
   };
 
   for (auto& lib : interface_libs) {
@@ -89,10 +84,6 @@ int main() {
   ALOGW_IF(aidl_status != STATUS_OK, "Could not register %s, status=%d",
            instance_name.c_str(), aidl_status);
 
-  //::android::sp<IDevicesFactory> audio_factory = new DevicesFactory();
-  //::android::status_t hidl_status = audio_factory->registerAsService("sysbta");
-  //ALOGW_IF(hidl_status != STATUS_OK, "Could not register sysbta, status=%d", hidl_status);
-
   // We must also implement audio HAL interfaces in order to serve audio.sysbta.default.so
   // It must be served in the *same* process to access the same libbluetooth_audio_session
   registerAudioInterfaces();