diff --git a/include/android/input.h b/include/android/input.h
index f51cd79..dbfd61e 100644
--- a/include/android/input.h
+++ b/include/android/input.h
@@ -793,6 +793,8 @@
     AMOTION_EVENT_TOOL_TYPE_MOUSE = 3,
     /** eraser */
     AMOTION_EVENT_TOOL_TYPE_ERASER = 4,
+    /** palm */
+    AMOTION_EVENT_TOOL_TYPE_PALM = 5,
 };
 
 /**
diff --git a/services/inputflinger/reader/mapper/MultiTouchInputMapper.cpp b/services/inputflinger/reader/mapper/MultiTouchInputMapper.cpp
index c567c8b..f42ddcf 100644
--- a/services/inputflinger/reader/mapper/MultiTouchInputMapper.cpp
+++ b/services/inputflinger/reader/mapper/MultiTouchInputMapper.cpp
@@ -209,6 +209,8 @@
                 return AMOTION_EVENT_TOOL_TYPE_FINGER;
             case MT_TOOL_PEN:
                 return AMOTION_EVENT_TOOL_TYPE_STYLUS;
+            case MT_TOOL_PALM:
+                return AMOTION_EVENT_TOOL_TYPE_PALM;
         }
     }
     return AMOTION_EVENT_TOOL_TYPE_UNKNOWN;
@@ -247,6 +249,14 @@
             continue;
         }
 
+        if (inSlot->getToolType() == AMOTION_EVENT_TOOL_TYPE_PALM) {
+            if (!mCurrentMotionAborted) {
+                ALOGI("Canceling touch gesture from device %s because the palm event was detected",
+                      getDeviceName().c_str());
+                cancelTouch(when);
+            }
+        }
+
         if (outCount >= MAX_POINTERS) {
 #if DEBUG_POINTERS
             ALOGD("MultiTouch device %s emitted more than maximum of %d pointers; "
diff --git a/services/inputflinger/tests/InputReader_test.cpp b/services/inputflinger/tests/InputReader_test.cpp
index 1fc8217..a9d7793 100644
--- a/services/inputflinger/tests/InputReader_test.cpp
+++ b/services/inputflinger/tests/InputReader_test.cpp
@@ -6798,4 +6798,95 @@
     ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyMotionWasNotCalled());
 }
 
+TEST_F(MultiTouchInputMapperTest, Process_ShouldHandleSingleTouch) {
+    MultiTouchInputMapper* mapper = new MultiTouchInputMapper(mDevice);
+    addConfigurationProperty("touch.deviceType", "touchScreen");
+    prepareDisplay(DISPLAY_ORIENTATION_0);
+    prepareAxes(POSITION | ID | SLOT | TOOL_TYPE);
+    addMapperAndConfigure(mapper);
+
+    NotifyMotionArgs motionArgs;
+
+    constexpr int32_t x1 = 100, y1 = 200, x2 = 120, y2 = 220, x3 = 140, y3 = 240;
+    // finger down
+    processId(mapper, 1);
+    processPosition(mapper, x1, y1);
+    processSync(mapper);
+    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyMotionWasCalled(&motionArgs));
+    ASSERT_EQ(AMOTION_EVENT_ACTION_DOWN, motionArgs.action);
+    ASSERT_EQ(AMOTION_EVENT_TOOL_TYPE_FINGER, motionArgs.pointerProperties[0].toolType);
+
+    // finger move
+    processId(mapper, 1);
+    processPosition(mapper, x2, y2);
+    processSync(mapper);
+    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyMotionWasCalled(&motionArgs));
+    ASSERT_EQ(AMOTION_EVENT_ACTION_MOVE, motionArgs.action);
+    ASSERT_EQ(AMOTION_EVENT_TOOL_TYPE_FINGER, motionArgs.pointerProperties[0].toolType);
+
+    // finger up.
+    processId(mapper, -1);
+    processSync(mapper);
+    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyMotionWasCalled(&motionArgs));
+    ASSERT_EQ(AMOTION_EVENT_ACTION_UP, motionArgs.action);
+    ASSERT_EQ(AMOTION_EVENT_TOOL_TYPE_FINGER, motionArgs.pointerProperties[0].toolType);
+
+    // new finger down
+    processId(mapper, 1);
+    processPosition(mapper, x3, y3);
+    processSync(mapper);
+    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyMotionWasCalled(&motionArgs));
+    ASSERT_EQ(AMOTION_EVENT_ACTION_DOWN, motionArgs.action);
+    ASSERT_EQ(AMOTION_EVENT_TOOL_TYPE_FINGER, motionArgs.pointerProperties[0].toolType);
+}
+
+/**
+ * Test touch should be canceled when received the MT_TOOL_PALM event, and the following MOVE and
+ * UP events should be ignored.
+ */
+TEST_F(MultiTouchInputMapperTest, Process_ShouldHandlePalmToolType) {
+    MultiTouchInputMapper* mapper = new MultiTouchInputMapper(mDevice);
+    addConfigurationProperty("touch.deviceType", "touchScreen");
+    prepareDisplay(DISPLAY_ORIENTATION_0);
+    prepareAxes(POSITION | ID | SLOT | TOOL_TYPE);
+    addMapperAndConfigure(mapper);
+
+    NotifyMotionArgs motionArgs;
+
+    // default tool type is finger
+    constexpr int32_t x1 = 100, y1 = 200, x2 = 120, y2 = 220, x3 = 140, y3 = 240;
+    processId(mapper, 1);
+    processPosition(mapper, x1, y1);
+    processSync(mapper);
+    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyMotionWasCalled(&motionArgs));
+    ASSERT_EQ(AMOTION_EVENT_ACTION_DOWN, motionArgs.action);
+    ASSERT_EQ(AMOTION_EVENT_TOOL_TYPE_FINGER, motionArgs.pointerProperties[0].toolType);
+
+    // Tool changed to MT_TOOL_PALM expect sending the cancel event.
+    processToolType(mapper, MT_TOOL_PALM);
+    processSync(mapper);
+    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyMotionWasCalled(&motionArgs));
+    ASSERT_EQ(AMOTION_EVENT_ACTION_CANCEL, motionArgs.action);
+
+    // Ignore the following MOVE and UP events if had detect a palm event.
+    processId(mapper, 1);
+    processPosition(mapper, x2, y2);
+    processSync(mapper);
+    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyMotionWasNotCalled());
+
+    // finger up.
+    processId(mapper, -1);
+    processSync(mapper);
+    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyMotionWasNotCalled());
+
+    // new finger down
+    processToolType(mapper, MT_TOOL_FINGER);
+    processId(mapper, 1);
+    processPosition(mapper, x3, y3);
+    processSync(mapper);
+    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyMotionWasCalled(&motionArgs));
+    ASSERT_EQ(AMOTION_EVENT_ACTION_DOWN, motionArgs.action);
+    ASSERT_EQ(AMOTION_EVENT_TOOL_TYPE_FINGER, motionArgs.pointerProperties[0].toolType);
+}
+
 } // namespace android