commit a7d8cc3f2194b70950a2d3f48427f6ec95b9c0e5
author Jorge E. Moreira <jemoreira@google.com> Tue Apr 26 16:07:22 2022 -0700
committer Jorge E. Moreira <jemoreira@google.com> Tue Apr 26 16:07:22 2022 -0700
tree 1d5cee3d15317cde577ca88ffbd54cdba0a54d7c
parent b4a6e3623f036ce5f621c3cf03fd6b0e57c79907

Configure hal correctly when audio is disabled

When audio is disabled the HAL will use the NullSink and
GeneratedSource classes instead of the ones based on tinyalsa because
there won't be an audio device for tinyalsa to interact with.

Bug: 226979862
Test: locally
Change-Id: Ifaf854e63b1f28200e6d8b5b72cf285901a393cc

host/libs/config/bootconfig_args.cpp

diff --git a/host/libs/config/bootconfig_args.cpp b/host/libs/config/bootconfig_args.cpp
index 00673f6..44e86ae 100644
--- a/host/libs/config/bootconfig_args.cpp
+++ b/host/libs/config/bootconfig_args.cpp
@@ -141,6 +141,11 @@
                instance.audiocontrol_server_port()));
   }
 
+  if (!config.enable_audio()) {
+    bootconfig_args.push_back("androidboot.audio.tinyalsa.ignore_output=true");
+    bootconfig_args.push_back("androidboot.audio.tinyalsa.simulate_input=true");
+  }
+
   if (instance.camera_server_port()) {
     bootconfig_args.push_back(concat("androidboot.vsock_camera_port=",
                                      instance.camera_server_port()));