From 3f313a10cc80fcd3cec9b8eab431a9d8a1756162 Mon Sep 17 00:00:00 2001
From: "Venkatarama NG. Avadhani" <venkatarama.avadhani@ittiam.com>
Date: Wed, 20 Jan 2021 15:17:53 +0530
Subject: [PATCH] HDMICEC: Add setsystemaudiomode shell command

Add command to set the system audio mode ON or OFF.

Bug: 177973980
Test: adb shell cmd hdmi_control setsam on
Change-Id: I870850724a35315a0057e248182fba5568c79253
---
 .../server/hdmi/HdmiControlShellCommand.java  | 30 +++++++++++++++++++
 1 file changed, 30 insertions(+)

diff --git a/services/core/java/com/android/server/hdmi/HdmiControlShellCommand.java b/services/core/java/com/android/server/hdmi/HdmiControlShellCommand.java
index ef3c4052971b4..7226cc22f95f0 100644
--- a/services/core/java/com/android/server/hdmi/HdmiControlShellCommand.java
+++ b/services/core/java/com/android/server/hdmi/HdmiControlShellCommand.java
@@ -88,6 +88,8 @@ final class HdmiControlShellCommand extends ShellCommand {
         pw.println("      Get the current value of a CEC setting");
         pw.println("  cec_setting set <setting name> <value>");
         pw.println("      Set the value of a CEC setting");
+        pw.println("  setsystemaudiomode, setsam [on|off]");
+        pw.println("      Sets the System Audio Mode feature on or off on TV devices");
     }
 
     private int handleShellCommand(String cmd) throws RemoteException {
@@ -101,6 +103,9 @@ final class HdmiControlShellCommand extends ShellCommand {
                 return vendorCommand(pw);
             case "cec_setting":
                 return cecSetting(pw);
+            case "setsystemaudiomode":
+            case "setsam":
+                return setSystemAudioMode(pw);
         }
 
         getErrPrintWriter().println("Unhandled command: " + cmd);
@@ -199,6 +204,31 @@ final class HdmiControlShellCommand extends ShellCommand {
         }
     }
 
+    private int setSystemAudioMode(PrintWriter pw) throws RemoteException {
+        if (1 > getRemainingArgsCount()) {
+            throw new IllegalArgumentException(
+                    "Please indicate if System Audio Mode should be turned \"on\" or \"off\".");
+        }
+
+        String arg = getNextArg();
+        if (arg.equals("on")) {
+            pw.println("Setting System Audio Mode on");
+            mBinderService.setSystemAudioMode(true, mHdmiControlCallback);
+        } else if (arg.equals("off")) {
+            pw.println("Setting System Audio Mode off");
+            mBinderService.setSystemAudioMode(false, mHdmiControlCallback);
+        } else {
+            throw new IllegalArgumentException(
+                    "Please indicate if System Audio Mode should be turned \"on\" or \"off\".");
+        }
+
+        if (!receiveCallback("Set System Audio Mode")) {
+            return 1;
+        }
+
+        return mCecResult.get() == HdmiControlManager.RESULT_SUCCESS ? 0 : 1;
+    }
+
     private boolean receiveCallback(String command) {
         try {
             if (!mLatch.await(HdmiConfig.TIMEOUT_MS, TimeUnit.MILLISECONDS)) {