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-rw-r--r--core/java/android/os/SystemVibrator.java18
-rw-r--r--core/tests/coretests/src/android/os/VibratorTest.java62
2 files changed, 69 insertions, 11 deletions
diff --git a/core/java/android/os/SystemVibrator.java b/core/java/android/os/SystemVibrator.java
index 6091bf9088d3..bf72b1d7a035 100644
--- a/core/java/android/os/SystemVibrator.java
+++ b/core/java/android/os/SystemVibrator.java
@@ -21,6 +21,7 @@ import android.annotation.NonNull;
import android.annotation.Nullable;
import android.compat.annotation.UnsupportedAppUsage;
import android.content.Context;
+import android.hardware.vibrator.IVibrator;
import android.util.ArrayMap;
import android.util.Log;
import android.util.Range;
@@ -313,8 +314,14 @@ public class SystemVibrator extends Vibrator {
private static final float EPSILON = 1e-5f;
public MultiVibratorInfo(VibratorInfo[] vibrators) {
+ // Need to use an extra constructor to share the computation in super initialization.
+ this(vibrators, frequencyProfileIntersection(vibrators));
+ }
+
+ private MultiVibratorInfo(VibratorInfo[] vibrators,
+ VibratorInfo.FrequencyProfile mergedProfile) {
super(/* id= */ -1,
- capabilitiesIntersection(vibrators),
+ capabilitiesIntersection(vibrators, mergedProfile.isEmpty()),
supportedEffectsIntersection(vibrators),
supportedBrakingIntersection(vibrators),
supportedPrimitivesAndDurationsIntersection(vibrators),
@@ -323,14 +330,19 @@ public class SystemVibrator extends Vibrator {
integerLimitIntersection(vibrators, VibratorInfo::getPwlePrimitiveDurationMax),
integerLimitIntersection(vibrators, VibratorInfo::getPwleSizeMax),
floatPropertyIntersection(vibrators, VibratorInfo::getQFactor),
- frequencyProfileIntersection(vibrators));
+ mergedProfile);
}
- private static int capabilitiesIntersection(VibratorInfo[] infos) {
+ private static int capabilitiesIntersection(VibratorInfo[] infos,
+ boolean frequencyProfileIsEmpty) {
int intersection = ~0;
for (VibratorInfo info : infos) {
intersection &= info.getCapabilities();
}
+ if (frequencyProfileIsEmpty) {
+ // Revoke frequency control if the merged frequency profile ended up empty.
+ intersection &= ~IVibrator.CAP_FREQUENCY_CONTROL;
+ }
return intersection;
}
diff --git a/core/tests/coretests/src/android/os/VibratorTest.java b/core/tests/coretests/src/android/os/VibratorTest.java
index 7ebebc965d8d..c59a3f518da8 100644
--- a/core/tests/coretests/src/android/os/VibratorTest.java
+++ b/core/tests/coretests/src/android/os/VibratorTest.java
@@ -246,10 +246,12 @@ public class VibratorTest {
@Test
public void getQFactorAndResonantFrequency_differentValues_returnsNaN() {
VibratorInfo firstVibrator = new VibratorInfo.Builder(/* id= */ 1)
+ .setCapabilities(IVibrator.CAP_FREQUENCY_CONTROL)
.setQFactor(1f)
.setFrequencyProfile(new VibratorInfo.FrequencyProfile(1, 1, 1, null))
.build();
VibratorInfo secondVibrator = new VibratorInfo.Builder(/* id= */ 2)
+ .setCapabilities(IVibrator.CAP_FREQUENCY_CONTROL)
.setQFactor(2f)
.setFrequencyProfile(new VibratorInfo.FrequencyProfile(2, 2, 2, null))
.build();
@@ -258,6 +260,7 @@ public class VibratorTest {
assertTrue(Float.isNaN(info.getQFactor()));
assertTrue(Float.isNaN(info.getResonantFrequencyHz()));
+ assertEmptyFrequencyProfileAndControl(info);
// One vibrator with values undefined.
VibratorInfo thirdVibrator = new VibratorInfo.Builder(/* id= */ 3).build();
@@ -266,16 +269,19 @@ public class VibratorTest {
assertTrue(Float.isNaN(info.getQFactor()));
assertTrue(Float.isNaN(info.getResonantFrequencyHz()));
+ assertEmptyFrequencyProfileAndControl(info);
}
@Test
public void getQFactorAndResonantFrequency_sameValues_returnsValue() {
VibratorInfo firstVibrator = new VibratorInfo.Builder(/* id= */ 1)
+ .setCapabilities(IVibrator.CAP_FREQUENCY_CONTROL)
.setQFactor(10f)
.setFrequencyProfile(new VibratorInfo.FrequencyProfile(
/* resonantFrequencyHz= */ 11, 10, 0.5f, null))
.build();
VibratorInfo secondVibrator = new VibratorInfo.Builder(/* id= */ 2)
+ .setCapabilities(IVibrator.CAP_FREQUENCY_CONTROL)
.setQFactor(10f)
.setFrequencyProfile(new VibratorInfo.FrequencyProfile(
/* resonantFrequencyHz= */ 11, 5, 1, null))
@@ -285,113 +291,131 @@ public class VibratorTest {
assertEquals(10f, info.getQFactor(), TEST_TOLERANCE);
assertEquals(11f, info.getResonantFrequencyHz(), TEST_TOLERANCE);
+
+ // No frequency range defined.
+ assertTrue(info.getFrequencyProfile().isEmpty());
+ assertEquals(false, info.hasCapability(IVibrator.CAP_FREQUENCY_CONTROL));
}
@Test
public void getFrequencyProfile_noVibrator_returnsEmpty() {
VibratorInfo info = new SystemVibrator.NoVibratorInfo();
- assertTrue(info.getFrequencyProfile().isEmpty());
+ assertEmptyFrequencyProfileAndControl(info);
}
@Test
public void getFrequencyProfile_differentResonantFrequencyOrResolutionValues_returnsEmpty() {
VibratorInfo firstVibrator = new VibratorInfo.Builder(/* id= */ 1)
+ .setCapabilities(IVibrator.CAP_FREQUENCY_CONTROL)
.setFrequencyProfile(new VibratorInfo.FrequencyProfile(1, 1, 1,
new float[] { 0, 1 }))
.build();
VibratorInfo differentResonantFrequency = new VibratorInfo.Builder(/* id= */ 2)
+ .setCapabilities(IVibrator.CAP_FREQUENCY_CONTROL)
.setFrequencyProfile(new VibratorInfo.FrequencyProfile(2, 1, 1,
new float[] { 0, 1 }))
.build();
VibratorInfo info = new SystemVibrator.MultiVibratorInfo(
new VibratorInfo[]{firstVibrator, differentResonantFrequency});
- assertTrue(info.getFrequencyProfile().isEmpty());
+ assertEmptyFrequencyProfileAndControl(info);
VibratorInfo differentFrequencyResolution = new VibratorInfo.Builder(/* id= */ 2)
+ .setCapabilities(IVibrator.CAP_FREQUENCY_CONTROL)
.setFrequencyProfile(new VibratorInfo.FrequencyProfile(1, 1, 2,
new float[] { 0, 1 }))
.build();
info = new SystemVibrator.MultiVibratorInfo(
new VibratorInfo[]{firstVibrator, differentFrequencyResolution});
- assertTrue(info.getFrequencyProfile().isEmpty());
+ assertEmptyFrequencyProfileAndControl(info);
}
@Test
public void getFrequencyProfile_missingValues_returnsEmpty() {
VibratorInfo firstVibrator = new VibratorInfo.Builder(/* id= */ 1)
+ .setCapabilities(IVibrator.CAP_FREQUENCY_CONTROL)
.setFrequencyProfile(new VibratorInfo.FrequencyProfile(1, 1, 1,
new float[] { 0, 1 }))
.build();
VibratorInfo missingResonantFrequency = new VibratorInfo.Builder(/* id= */ 2)
+ .setCapabilities(IVibrator.CAP_FREQUENCY_CONTROL)
.setFrequencyProfile(new VibratorInfo.FrequencyProfile(Float.NaN, 1, 1,
new float[] { 0, 1 }))
.build();
VibratorInfo info = new SystemVibrator.MultiVibratorInfo(
new VibratorInfo[]{firstVibrator, missingResonantFrequency});
- assertTrue(info.getFrequencyProfile().isEmpty());
+ assertEmptyFrequencyProfileAndControl(info);
VibratorInfo missingMinFrequency = new VibratorInfo.Builder(/* id= */ 2)
+ .setCapabilities(IVibrator.CAP_FREQUENCY_CONTROL)
.setFrequencyProfile(new VibratorInfo.FrequencyProfile(1, Float.NaN, 1,
new float[] { 0, 1 }))
.build();
info = new SystemVibrator.MultiVibratorInfo(
new VibratorInfo[]{firstVibrator, missingMinFrequency});
- assertTrue(info.getFrequencyProfile().isEmpty());
+ assertEmptyFrequencyProfileAndControl(info);
VibratorInfo missingFrequencyResolution = new VibratorInfo.Builder(/* id= */ 2)
+ .setCapabilities(IVibrator.CAP_FREQUENCY_CONTROL)
.setFrequencyProfile(new VibratorInfo.FrequencyProfile(1, 1, Float.NaN,
new float[] { 0, 1 }))
.build();
info = new SystemVibrator.MultiVibratorInfo(
new VibratorInfo[]{firstVibrator, missingFrequencyResolution});
- assertTrue(info.getFrequencyProfile().isEmpty());
+ assertEmptyFrequencyProfileAndControl(info);
VibratorInfo missingMaxAmplitudes = new VibratorInfo.Builder(/* id= */ 2)
+ .setCapabilities(IVibrator.CAP_FREQUENCY_CONTROL)
.setFrequencyProfile(new VibratorInfo.FrequencyProfile(1, 1, 1, null))
.build();
info = new SystemVibrator.MultiVibratorInfo(
new VibratorInfo[]{firstVibrator, missingMaxAmplitudes});
- assertTrue(info.getFrequencyProfile().isEmpty());
+ assertEmptyFrequencyProfileAndControl(info);
}
@Test
public void getFrequencyProfile_unalignedMaxAmplitudes_returnsEmpty() {
VibratorInfo firstVibrator = new VibratorInfo.Builder(/* id= */ 1)
+ .setCapabilities(IVibrator.CAP_FREQUENCY_CONTROL)
.setFrequencyProfile(new VibratorInfo.FrequencyProfile(11, 10, 0.5f,
new float[] { 0, 1, 1, 0 }))
.build();
VibratorInfo unalignedMinFrequency = new VibratorInfo.Builder(/* id= */ 2)
+ .setCapabilities(IVibrator.CAP_FREQUENCY_CONTROL)
.setFrequencyProfile(new VibratorInfo.FrequencyProfile(11, 10.1f, 0.5f,
new float[] { 0, 1, 1, 0 }))
.build();
VibratorInfo thirdVibrator = new VibratorInfo.Builder(/* id= */ 2)
+ .setCapabilities(IVibrator.CAP_FREQUENCY_CONTROL)
.setFrequencyProfile(new VibratorInfo.FrequencyProfile(11, 10.5f, 0.5f,
new float[] { 0, 1, 1, 0 }))
.build();
VibratorInfo info = new SystemVibrator.MultiVibratorInfo(
new VibratorInfo[]{firstVibrator, unalignedMinFrequency, thirdVibrator});
- assertTrue(info.getFrequencyProfile().isEmpty());
+ assertEmptyFrequencyProfileAndControl(info);
}
@Test
public void getFrequencyProfile_alignedProfiles_returnsIntersection() {
VibratorInfo firstVibrator = new VibratorInfo.Builder(/* id= */ 1)
+ .setCapabilities(IVibrator.CAP_FREQUENCY_CONTROL)
.setFrequencyProfile(new VibratorInfo.FrequencyProfile(11, 10, 0.5f,
new float[] { 0.5f, 1, 1, 0.5f }))
.build();
VibratorInfo secondVibrator = new VibratorInfo.Builder(/* id= */ 2)
+ .setCapabilities(IVibrator.CAP_FREQUENCY_CONTROL)
.setFrequencyProfile(new VibratorInfo.FrequencyProfile(11, 10.5f, 0.5f,
new float[] { 1, 1, 1 }))
.build();
VibratorInfo thirdVibrator = new VibratorInfo.Builder(/* id= */ 3)
+ .setCapabilities(IVibrator.CAP_FREQUENCY_CONTROL)
.setFrequencyProfile(new VibratorInfo.FrequencyProfile(11, 10.5f, 0.5f,
new float[] { 0.8f, 1, 0.8f, 0.5f }))
.build();
@@ -401,6 +425,20 @@ public class VibratorTest {
assertEquals(
new VibratorInfo.FrequencyProfile(11, 10.5f, 0.5f, new float[] { 0.8f, 1, 0.5f }),
info.getFrequencyProfile());
+ assertEquals(true, info.hasCapability(IVibrator.CAP_FREQUENCY_CONTROL));
+
+ // Third vibrator without frequency control capability.
+ thirdVibrator = new VibratorInfo.Builder(/* id= */ 3)
+ .setFrequencyProfile(new VibratorInfo.FrequencyProfile(11, 10.5f, 0.5f,
+ new float[] { 0.8f, 1, 0.8f, 0.5f }))
+ .build();
+ info = new SystemVibrator.MultiVibratorInfo(
+ new VibratorInfo[]{firstVibrator, secondVibrator, thirdVibrator});
+
+ assertEquals(
+ new VibratorInfo.FrequencyProfile(11, 10.5f, 0.5f, new float[] { 0.8f, 1, 0.5f }),
+ info.getFrequencyProfile());
+ assertEquals(false, info.hasCapability(IVibrator.CAP_FREQUENCY_CONTROL));
}
@Test
@@ -547,4 +585,12 @@ public class VibratorTest {
VibrationAttributes vibrationAttributes = captor.getValue();
assertEquals(new VibrationAttributes.Builder().build(), vibrationAttributes);
}
+
+ /**
+ * Asserts that the frequency profile is empty, and therefore frequency control isn't supported.
+ */
+ void assertEmptyFrequencyProfileAndControl(VibratorInfo info) {
+ assertTrue(info.getFrequencyProfile().isEmpty());
+ assertEquals(false, info.hasCapability(IVibrator.CAP_FREQUENCY_CONTROL));
+ }
}
generated by cgit v1.2.3-59-g8ed1b (git 2.39.0) at 2025-11-01 16:05:51 +0000