composer: add DisplayCapability::SUSPEND

Also remove the redundant APIs getDisplayBrightnessSupport
and getDozeSupport.

Bug: 209889459
Test: VTS
Change-Id: Id7e4da62fdcf65b279656a9f115e60b6145e8b5d
diff --git a/graphics/composer/aidl/aidl_api/android.hardware.graphics.composer3/current/android/hardware/graphics/composer3/DisplayCapability.aidl b/graphics/composer/aidl/aidl_api/android.hardware.graphics.composer3/current/android/hardware/graphics/composer3/DisplayCapability.aidl
index 0bcd870..9f5342e 100644
--- a/graphics/composer/aidl/aidl_api/android.hardware.graphics.composer3/current/android/hardware/graphics/composer3/DisplayCapability.aidl
+++ b/graphics/composer/aidl/aidl_api/android.hardware.graphics.composer3/current/android/hardware/graphics/composer3/DisplayCapability.aidl
@@ -40,4 +40,5 @@
   BRIGHTNESS = 3,
   PROTECTED_CONTENTS = 4,
   AUTO_LOW_LATENCY_MODE = 5,
+  SUSPEND = 6,
 }
diff --git a/graphics/composer/aidl/aidl_api/android.hardware.graphics.composer3/current/android/hardware/graphics/composer3/IComposerClient.aidl b/graphics/composer/aidl/aidl_api/android.hardware.graphics.composer3/current/android/hardware/graphics/composer3/IComposerClient.aidl
index 4717218..2bdbc9f 100644
--- a/graphics/composer/aidl/aidl_api/android.hardware.graphics.composer3/current/android/hardware/graphics/composer3/IComposerClient.aidl
+++ b/graphics/composer/aidl/aidl_api/android.hardware.graphics.composer3/current/android/hardware/graphics/composer3/IComposerClient.aidl
@@ -43,7 +43,6 @@
   android.hardware.graphics.composer3.ColorMode[] getColorModes(long display);
   float[] getDataspaceSaturationMatrix(android.hardware.graphics.common.Dataspace dataspace);
   int getDisplayAttribute(long display, int config, android.hardware.graphics.composer3.DisplayAttribute attribute);
-  boolean getDisplayBrightnessSupport(long display);
   android.hardware.graphics.composer3.DisplayCapability[] getDisplayCapabilities(long display);
   int[] getDisplayConfigs(long display);
   android.hardware.graphics.composer3.DisplayConnectionType getDisplayConnectionType(long display);
@@ -52,7 +51,6 @@
   int getDisplayVsyncPeriod(long display);
   android.hardware.graphics.composer3.DisplayContentSample getDisplayedContentSample(long display, long maxFrames, long timestamp);
   android.hardware.graphics.composer3.DisplayContentSamplingAttributes getDisplayedContentSamplingAttributes(long display);
-  boolean getDozeSupport(long display);
   android.hardware.graphics.composer3.HdrCapabilities getHdrCapabilities(long display);
   android.hardware.graphics.composer3.LayerGenericMetadataKey[] getLayerGenericMetadataKeys();
   int getMaxVirtualDisplayCount();
diff --git a/graphics/composer/aidl/android/hardware/graphics/composer3/DisplayCapability.aidl b/graphics/composer/aidl/android/hardware/graphics/composer3/DisplayCapability.aidl
index 54f09c1..bfaa15b 100644
--- a/graphics/composer/aidl/android/hardware/graphics/composer3/DisplayCapability.aidl
+++ b/graphics/composer/aidl/android/hardware/graphics/composer3/DisplayCapability.aidl
@@ -42,7 +42,8 @@
     SKIP_CLIENT_COLOR_TRANSFORM = 1,
     /**
      * Indicates that the display supports PowerMode::DOZE and
-     * PowerMode::DOZE_SUSPEND. DOZE_SUSPEND may not provide any benefit
+     * potentially PowerMode::DOZE_SUSPEND if DisplayCapability.SUSPEND is also
+     * supported. DOZE_SUSPEND may not provide any benefit
      * over DOZE (see the definition of PowerMode for more information),
      * but if both DOZE and DOZE_SUSPEND are no different from
      * PowerMode::ON, the device must not claim support.
@@ -66,4 +67,12 @@
      * support a low latency mode, such as HDMI 2.1 Auto Low Latency Mode.
      */
     AUTO_LOW_LATENCY_MODE = 5,
+    /**
+     * Indicates that the display supports PowerMode.ON_SUSPEND.
+     * If PowerMode.ON_SUSPEND is no different from PowerMode.ON, the device must not
+     * claim support.
+     * If the display supports DisplayCapability.DOZE and DisplayCapability.SUSPEND, then
+     * PowerMode.ON_SUSPEND and PowerMode.DOZE_SUSPEND must be supported.
+     */
+    SUSPEND = 6,
 }
diff --git a/graphics/composer/aidl/android/hardware/graphics/composer3/IComposerClient.aidl b/graphics/composer/aidl/android/hardware/graphics/composer3/IComposerClient.aidl
index 570d5d9..b89b4c4 100644
--- a/graphics/composer/aidl/android/hardware/graphics/composer3/IComposerClient.aidl
+++ b/graphics/composer/aidl/android/hardware/graphics/composer3/IComposerClient.aidl
@@ -247,22 +247,6 @@
     int getDisplayAttribute(long display, int config, DisplayAttribute attribute);
 
     /**
-     * Use getDisplayCapabilities instead. If brightness is supported, must return
-     * DisplayCapability::BRIGHTNESS as one of the display capabilities via getDisplayCapabilities.
-     * Only use getDisplayCapabilities as the source of truth to query brightness support.
-     *
-     * Gets whether brightness operations are supported on a display.
-     *
-     * @param display The display.
-     *
-     * @return Whether brightness operations are supported on the display.
-     *
-     * @exception EX_BAD_DISPLAY   when the display is invalid, or
-     * @exception EX_BAD_PARAMETER when the output parameter is invalid.
-     */
-    boolean getDisplayBrightnessSupport(long display);
-
-    /**
      * Provides a list of supported capabilities (as described in the
      * definition of DisplayCapability above). This list must not change after
      * initialization.
@@ -371,21 +355,6 @@
     DisplayContentSamplingAttributes getDisplayedContentSamplingAttributes(long display);
 
     /**
-     * Returns whether the given display supports PowerMode::DOZE and
-     * PowerMode::DOZE_SUSPEND. DOZE_SUSPEND may not provide any benefit over
-     * DOZE (see the definition of PowerMode for more information), but if
-     * both DOZE and DOZE_SUSPEND are no different from PowerMode::ON, the
-     * device must not claim support.
-     *
-     * @param display is the display to query.
-     *
-     * @return is true only when the display supports doze modes.
-     *
-     * @exception EX_BAD_DISPLAY when an invalid display handle was passed in.
-     */
-    boolean getDozeSupport(long display);
-
-    /**
      * Returns the high dynamic range (HDR) capabilities of the given display,
      * which are invariant with regard to the active configuration.
      *
diff --git a/graphics/composer/aidl/android/hardware/graphics/composer3/vts/functional/VtsHalGraphicsComposer3_TargetTest.cpp b/graphics/composer/aidl/android/hardware/graphics/composer3/vts/functional/VtsHalGraphicsComposer3_TargetTest.cpp
index 17b0ebd..20fffa9 100644
--- a/graphics/composer/aidl/android/hardware/graphics/composer3/vts/functional/VtsHalGraphicsComposer3_TargetTest.cpp
+++ b/graphics/composer/aidl/android/hardware/graphics/composer3/vts/functional/VtsHalGraphicsComposer3_TargetTest.cpp
@@ -566,25 +566,6 @@
     }
 }
 
-TEST_P(GraphicsComposerAidlTest, getDisplayCapabilitiesBasic) {
-    std::vector<DisplayCapability> capabilities;
-    const auto error = mComposerClient->getDisplayCapabilities(mPrimaryDisplay, &capabilities);
-    ASSERT_TRUE(error.isOk());
-    const bool hasDozeSupport = std::find(capabilities.begin(), capabilities.end(),
-                                          DisplayCapability::DOZE) != capabilities.end();
-    bool isDozeSupported = false;
-    EXPECT_TRUE(mComposerClient->getDozeSupport(mPrimaryDisplay, &isDozeSupported).isOk());
-    EXPECT_EQ(hasDozeSupport, isDozeSupported);
-
-    bool hasBrightnessSupport = std::find(capabilities.begin(), capabilities.end(),
-                                          DisplayCapability::BRIGHTNESS) != capabilities.end();
-    bool isBrightnessSupported = false;
-    EXPECT_TRUE(
-            mComposerClient->getDisplayBrightnessSupport(mPrimaryDisplay, &isBrightnessSupported)
-                    .isOk());
-    EXPECT_EQ(isBrightnessSupported, hasBrightnessSupport);
-}
-
 /*
  * Test that if brightness operations are supported, setDisplayBrightness works as expected.
  */
@@ -1009,16 +990,14 @@
     }
 }
 
-TEST_P(GraphicsComposerAidlTest, GetDozeSupportBadDisplay) {
-    bool isDozeSupport;
-    const auto error = mComposerClient->getDozeSupport(mInvalidDisplayId, &isDozeSupport);
-    EXPECT_FALSE(error.isOk());
-    ASSERT_EQ(IComposerClient::EX_BAD_DISPLAY, error.getServiceSpecificError());
-}
-
 TEST_P(GraphicsComposerAidlTest, SetPowerModeUnsupported) {
-    bool isDozeSupported;
-    mComposerClient->getDozeSupport(mPrimaryDisplay, &isDozeSupported).isOk();
+    std::vector<DisplayCapability> capabilities;
+    const auto error = mComposerClient->getDisplayCapabilities(mPrimaryDisplay, &capabilities);
+    ASSERT_TRUE(error.isOk());
+    const bool isDozeSupported = std::find(capabilities.begin(), capabilities.end(),
+                                           DisplayCapability::DOZE) != capabilities.end();
+    const bool isSuspendSupported = std::find(capabilities.begin(), capabilities.end(),
+                                              DisplayCapability::SUSPEND) != capabilities.end();
     if (!isDozeSupported) {
         auto error = mComposerClient->setPowerMode(mPrimaryDisplay, PowerMode::DOZE);
         EXPECT_FALSE(error.isOk());
@@ -1028,6 +1007,16 @@
         EXPECT_FALSE(error.isOk());
         EXPECT_EQ(IComposerClient::EX_UNSUPPORTED, error.getServiceSpecificError());
     }
+
+    if (!isSuspendSupported) {
+        auto error = mComposerClient->setPowerMode(mPrimaryDisplay, PowerMode::ON_SUSPEND);
+        EXPECT_FALSE(error.isOk());
+        EXPECT_EQ(IComposerClient::EX_UNSUPPORTED, error.getServiceSpecificError());
+
+        error = mComposerClient->setPowerMode(mPrimaryDisplay, PowerMode::DOZE_SUSPEND);
+        EXPECT_FALSE(error.isOk());
+        EXPECT_EQ(IComposerClient::EX_UNSUPPORTED, error.getServiceSpecificError());
+    }
 }
 
 TEST_P(GraphicsComposerAidlTest, SetVsyncEnabled) {
@@ -1041,15 +1030,27 @@
 }
 
 TEST_P(GraphicsComposerAidlTest, SetPowerMode) {
+    std::vector<DisplayCapability> capabilities;
+    const auto error = mComposerClient->getDisplayCapabilities(mPrimaryDisplay, &capabilities);
+    ASSERT_TRUE(error.isOk());
+    const bool isDozeSupported = std::find(capabilities.begin(), capabilities.end(),
+                                           DisplayCapability::DOZE) != capabilities.end();
+    const bool isSuspendSupported = std::find(capabilities.begin(), capabilities.end(),
+                                              DisplayCapability::SUSPEND) != capabilities.end();
+
     std::vector<PowerMode> modes;
     modes.push_back(PowerMode::OFF);
-    modes.push_back(PowerMode::ON_SUSPEND);
     modes.push_back(PowerMode::ON);
 
-    bool isDozeSupported;
-    EXPECT_TRUE(mComposerClient->getDozeSupport(mPrimaryDisplay, &isDozeSupported).isOk());
+    if (isSuspendSupported) {
+        modes.push_back(PowerMode::ON_SUSPEND);
+    }
+
     if (isDozeSupported) {
         modes.push_back(PowerMode::DOZE);
+    }
+
+    if (isSuspendSupported && isDozeSupported) {
         modes.push_back(PowerMode::DOZE_SUSPEND);
     }
 
@@ -1059,6 +1060,14 @@
 }
 
 TEST_P(GraphicsComposerAidlTest, SetPowerModeVariations) {
+    std::vector<DisplayCapability> capabilities;
+    const auto error = mComposerClient->getDisplayCapabilities(mPrimaryDisplay, &capabilities);
+    ASSERT_TRUE(error.isOk());
+    const bool isDozeSupported = std::find(capabilities.begin(), capabilities.end(),
+                                           DisplayCapability::DOZE) != capabilities.end();
+    const bool isSuspendSupported = std::find(capabilities.begin(), capabilities.end(),
+                                              DisplayCapability::SUSPEND) != capabilities.end();
+
     std::vector<PowerMode> modes;
 
     modes.push_back(PowerMode::OFF);
@@ -1083,15 +1092,15 @@
     }
     modes.clear();
 
-    modes.push_back(PowerMode::ON_SUSPEND);
-    modes.push_back(PowerMode::ON_SUSPEND);
-    for (auto mode : modes) {
-        EXPECT_TRUE(mComposerClient->setPowerMode(mPrimaryDisplay, mode).isOk());
+    if (isSuspendSupported) {
+        modes.push_back(PowerMode::ON_SUSPEND);
+        modes.push_back(PowerMode::ON_SUSPEND);
+        for (auto mode : modes) {
+            EXPECT_TRUE(mComposerClient->setPowerMode(mPrimaryDisplay, mode).isOk());
+        }
+        modes.clear();
     }
-    modes.clear();
 
-    bool isDozeSupported = false;
-    ASSERT_TRUE(mComposerClient->getDozeSupport(mPrimaryDisplay, &isDozeSupported).isOk());
     if (isDozeSupported) {
         modes.push_back(PowerMode::DOZE);
         modes.push_back(PowerMode::DOZE);
@@ -1099,12 +1108,15 @@
             EXPECT_TRUE(mComposerClient->setPowerMode(mPrimaryDisplay, mode).isOk());
         }
         modes.clear();
+    }
 
+    if (isSuspendSupported && isDozeSupported) {
         modes.push_back(PowerMode::DOZE_SUSPEND);
         modes.push_back(PowerMode::DOZE_SUSPEND);
         for (auto mode : modes) {
             EXPECT_TRUE(mComposerClient->setPowerMode(mPrimaryDisplay, mode).isOk());
         }
+        modes.clear();
     }
 }