From 5fe3a6cbfc50a8faf9cf051f1f09a7eb1ef6b7ee Mon Sep 17 00:00:00 2001
From: Jinsuk Kim <jinsukkim@google.com>
Date: Wed, 29 Oct 2014 07:02:06 +0900
Subject: [PATCH] CEC: Use language code "chi" for Traditional Chinese

Android by default returns "zho" for all sorts of Chinese variants.
Use "chi" for traditional one used in Taiwan/Hong Kong/Macau
as required in CEC standard.

Bug: 18149804

Change-Id: I86ac7e2f0f1121641c52032a0d98a6405554457c
---
 .../android/server/hdmi/HdmiControlService.java  | 16 +++++++++++++++-
 1 file changed, 15 insertions(+), 1 deletion(-)

diff --git a/services/core/java/com/android/server/hdmi/HdmiControlService.java b/services/core/java/com/android/server/hdmi/HdmiControlService.java
index e741fc4f8dc13..aeb21dbfa1361 100644
--- a/services/core/java/com/android/server/hdmi/HdmiControlService.java
+++ b/services/core/java/com/android/server/hdmi/HdmiControlService.java
@@ -90,6 +90,8 @@ import java.util.Locale;
  */
 public final class HdmiControlService extends SystemService {
     private static final String TAG = "HdmiControlService";
+    private final Locale HONG_KONG = new Locale("zh", "HK");
+    private final Locale MACAU = new Locale("zh", "MO");
 
     static final String PERMISSION = "android.permission.HDMI_CEC";
 
@@ -146,13 +148,25 @@ public final class HdmiControlService extends SystemService {
                     }
                     break;
                 case Intent.ACTION_CONFIGURATION_CHANGED:
-                    String language = Locale.getDefault().getISO3Language();
+                    String language = getMenuLanguage();
                     if (!mLanguage.equals(language)) {
                         onLanguageChanged(language);
                     }
                     break;
             }
         }
+
+        private String getMenuLanguage() {
+            Locale locale = Locale.getDefault();
+            if (locale.equals(Locale.TAIWAN) || locale.equals(HONG_KONG) || locale.equals(MACAU)) {
+                // Android always returns "zho" for all Chinese variants.
+                // Use "bibliographic" code defined in CEC639-2 for traditional
+                // Chinese used in Taiwan/Hong Kong/Macau.
+                return "chi";
+            } else {
+                return locale.getISO3Language();
+            }
+        }
     }
 
     // A thread to handle synchronous IO of CEC and MHL control service.