diff --git a/tv/tuner/1.1/IFilterCallback.hal b/tv/tuner/1.1/IFilterCallback.hal
index 3e5f047..9960a23 100644
--- a/tv/tuner/1.1/IFilterCallback.hal
+++ b/tv/tuner/1.1/IFilterCallback.hal
@@ -18,7 +18,7 @@
 
 import @1.0::IFilterCallback;
 import @1.0::DemuxFilterEvent;
-import @1.1::DemuxFilterEventExt;
+import DemuxFilterEventExt;
 
 interface IFilterCallback extends @1.0::IFilterCallback {
     /**
diff --git a/tv/tuner/1.1/IFrontend.hal b/tv/tuner/1.1/IFrontend.hal
index 0b0ce39..9858d4b 100644
--- a/tv/tuner/1.1/IFrontend.hal
+++ b/tv/tuner/1.1/IFrontend.hal
@@ -45,7 +45,8 @@
      *         INVALID_STATE if tuning can't be applied at current stage,
      *         UNKNOWN_ERROR if tuning failed for other reasons.
      */
-    tune_1_1(FrontendSettings settings, FrontendSettingsExt settingsExt) generates (Result result);
+    tune_1_1(FrontendSettings settings, FrontendSettingsExt settingsExt)
+        generates (Result result);
 
     /**
      * Scan the frontend to use the settings given.
@@ -66,7 +67,7 @@
      *         UNKNOWN_ERROR if tuning failed for other reasons.
      */
     scan_1_1(FrontendSettings settings, FrontendScanType type, FrontendSettingsExt settingsExt)
-            generates (Result result);
+        generates (Result result);
 
     /**
      * Link Conditional Access Modules (CAM) to Frontend support Common Interface (CI) bypass mode.
diff --git a/tv/tuner/1.1/types.hal b/tv/tuner/1.1/types.hal
index 9e2f453..fe35811 100644
--- a/tv/tuner/1.1/types.hal
+++ b/tv/tuner/1.1/types.hal
@@ -20,6 +20,7 @@
 import @1.0::DemuxFilterMmtpRecordEvent;
 import @1.0::DemuxFilterTsRecordEvent;
 import @1.0::FrontendDvbcSpectralInversion;
+import @1.0::FrontendDvbtConstellation;
 import @1.0::FrontendDvbtTransmissionMode;
 import android.hidl.safe_union@1.0;
 import android.hidl.safe_union@1.0::Monostate;
@@ -106,16 +107,6 @@
 };
 
 /**
- *  Rotation status for a DVBT Frontend.
- */
-@export
-enum FrontendDvbtRotation : uint32_t {
-    UNDEFINED,
-    NOT_ROTATED,
-    ROTATED,
-};
-
-/**
  * AFT flag for an Analog Frontend.
  */
 @export
@@ -131,13 +122,22 @@
 @export
 enum FrontendDvbtTransmissionMode : @1.0::FrontendDvbtTransmissionMode {
     MODE_8K_E = 1 << 7,
-
     MODE_16K_E = 1 << 8,
-
     MODE_32K_E = 1 << 9,
 };
 
 /**
+ *  Extended Constellation for DVBT.
+ */
+@export
+enum FrontendDvbtConstellation : @1.0::FrontendDvbtConstellation {
+    CONSTELLATION_QPSK_R = 1 << 5,
+    CONSTELLATION_16QAM_R = 1 << 6,
+    CONSTELLATION_64QAM_R = 1 << 7,
+    CONSTELLATION_256QAM_R = 1 << 8,
+};
+
+/**
  *  Extended Signal Settings for a DVBS Frontend.
  */
 struct FrontendDvbsSettingsExt {
@@ -148,7 +148,7 @@
  *  Extended Signal Settings for a DVBT Frontend.
  */
 struct FrontendDvbtSettingsExt {
-    FrontendDvbtRotation rotation;
+    FrontendDvbtConstellation constellation;
 
     FrontendDvbtTransmissionMode transmissionMode;
 };