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CEC: Make dumpsys message history size editable

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Increase or decrease the dumpsys message history using adb shell
command.

Bug: 197220407
Test: adb shell cmd hdmi_control history_size set 300
      adb shell cmd hdmi_control history_size get
Change-Id: I729fcb5ef9f993f1a465d0093ebf605ff0e7cf2d
This commit is contained in:
Venkatarama NG. Avadhani
2021-08-25 19:05:18 +05:30
committed by Yan Han
parent 006c201920
commit 49b51e6772
6 changed files with 129 additions and 6 deletions
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20
core/java/android/hardware/hdmi/HdmiControlServiceWrapper.java
View File

@@ -294,6 +294,16 @@ public final class HdmiControlServiceWrapper {
HdmiControlServiceWrapper.this.removeHdmiCecVolumeControlFeatureListener(listener);
}
@Override
public int getMessageHistorySize() {
return HdmiControlServiceWrapper.this.getMessageHistorySize();
}
@Override
public boolean setMessageHistorySize(int newSize) {
return HdmiControlServiceWrapper.this.setMessageHistorySize(newSize);
}
@Override
public void addCecSettingChangeListener(String name,
IHdmiCecSettingChangeListener listener) {
@@ -522,6 +532,16 @@ public final class HdmiControlServiceWrapper {
public void removeHdmiCecVolumeControlFeatureListener(
IHdmiCecVolumeControlFeatureListener listener) {}
/** @hide */
public int getMessageHistorySize() {
return 0;
}
/** @hide */
public boolean setMessageHistorySize(int newSize) {
return true;
}
/** @hide */
public void addCecSettingChangeListener(String name,
IHdmiCecSettingChangeListener listener) {}

2
core/java/android/hardware/hdmi/IHdmiControlService.aidl
View File

@@ -88,6 +88,8 @@ interface IHdmiControlService {
void setStandbyMode(boolean isStandbyModeOn);
void reportAudioStatus(int deviceType, int volume, int maxVolume, boolean isMute);
void setSystemAudioModeOnForAudioOnlySource();
boolean setMessageHistorySize(int newSize);
int getMessageHistorySize();
void addCecSettingChangeListener(String name, IHdmiCecSettingChangeListener listener);
void removeCecSettingChangeListener(String name, IHdmiCecSettingChangeListener listener);
List<String> getUserCecSettings();

11
core/tests/hdmitests/src/android/hardware/hdmi/HdmiAudioSystemClientTest.java
View File

@@ -375,6 +375,17 @@ public class HdmiAudioSystemClientTest {
IHdmiCecVolumeControlFeatureListener listener) {
}
@Override
public int getMessageHistorySize() {
return 0;
}
@Override
public boolean setMessageHistorySize(int newSize) {
return true;
}
@Override
public List<String> getUserCecSettings() {
return new ArrayList<>();

41
services/core/java/com/android/server/hdmi/HdmiCecController.java
View File

@@ -90,7 +90,7 @@ final class HdmiCecController {
private static final int MAX_DEDICATED_ADDRESS = 11;
private static final int MAX_HDMI_MESSAGE_HISTORY = 250;
private static final int INITIAL_HDMI_MESSAGE_HISTORY_SIZE = 250;
private static final int INVALID_PHYSICAL_ADDRESS = 0xFFFF;
@@ -138,8 +138,10 @@ final class HdmiCecController {
private final HdmiControlService mService;
// Stores recent CEC messages and HDMI Hotplug event history for debugging purpose.
private final ArrayBlockingQueue<Dumpable> mMessageHistory =
new ArrayBlockingQueue<>(MAX_HDMI_MESSAGE_HISTORY);
private ArrayBlockingQueue<Dumpable> mMessageHistory =
new ArrayBlockingQueue<>(INITIAL_HDMI_MESSAGE_HISTORY_SIZE);
private final Object mMessageHistoryLock = new Object();
private final NativeWrapper mNativeWrapperImpl;
@@ -750,12 +752,39 @@ final class HdmiCecController {
}
private void addEventToHistory(Dumpable event) {
if (!mMessageHistory.offer(event)) {
mMessageHistory.poll();
mMessageHistory.offer(event);
synchronized (mMessageHistoryLock) {
if (!mMessageHistory.offer(event)) {
mMessageHistory.poll();
mMessageHistory.offer(event);
}
}
}
int getMessageHistorySize() {
synchronized (mMessageHistoryLock) {
return mMessageHistory.size() + mMessageHistory.remainingCapacity();
}
}
boolean setMessageHistorySize(int newSize) {
if (newSize < INITIAL_HDMI_MESSAGE_HISTORY_SIZE) {
return false;
}
ArrayBlockingQueue<Dumpable> newMessageHistory = new ArrayBlockingQueue<>(newSize);
synchronized (mMessageHistoryLock) {
if (newSize < mMessageHistory.size()) {
for (int i = 0; i < mMessageHistory.size() - newSize; i++) {
mMessageHistory.poll();
}
}
newMessageHistory.addAll(mMessageHistory);
mMessageHistory = newMessageHistory;
}
return true;
}
void dump(final IndentingPrintWriter pw) {
pw.println("CEC message history:");
pw.increaseIndent();

19
services/core/java/com/android/server/hdmi/HdmiControlService.java
View File

@@ -2365,6 +2365,25 @@ public class HdmiControlService extends SystemService {
}
}
@Override
public boolean setMessageHistorySize(int newSize) {
enforceAccessPermission();
if (mCecController == null) {
return false;
}
return mCecController.setMessageHistorySize(newSize);
}
@Override
public int getMessageHistorySize() {
enforceAccessPermission();
if (mCecController != null) {
return mCecController.getMessageHistorySize();
} else {
return 0;
}
}
@Override
public void addCecSettingChangeListener(String name,
final IHdmiCecSettingChangeListener listener) {

42
services/core/java/com/android/server/hdmi/HdmiControlShellCommand.java
View File

@@ -95,6 +95,11 @@ final class HdmiControlShellCommand extends ShellCommand {
pw.println(" deviceselect <device id>");
pw.println(" Switch to device with given id");
pw.println(" The device's id is represented by its logical address.");
pw.println(" history_size get");
pw.println(" Gets the number of messages that can be stored in dumpsys history");
pw.println(" history_size set <new_size>");
pw.println(" Changes the number of messages that can be stored in dumpsys history to"
+ " new_size");
}
private int handleShellCommand(String cmd) throws RemoteException {
@@ -115,6 +120,8 @@ final class HdmiControlShellCommand extends ShellCommand {
return setArcMode(pw);
case "deviceselect":
return deviceSelect(pw);
case "history_size":
return historySize(pw);
}
getErrPrintWriter().println("Unhandled command: " + cmd);
@@ -275,6 +282,41 @@ final class HdmiControlShellCommand extends ShellCommand {
return 0;
}
private int historySize(PrintWriter pw) throws RemoteException {
if (1 > getRemainingArgsCount()) {
throw new IllegalArgumentException("Use 'set' or 'get' for the command action");
}
String operation = getNextArgRequired();
switch (operation) {
case "get": {
int value = mBinderService.getMessageHistorySize();
pw.println("CEC dumpsys message history size = " + value);
return 0;
}
case "set": {
String arg = getNextArgRequired();
int value;
try {
value = Integer.parseInt(arg);
} catch (NumberFormatException nfe) {
pw.println("Cannot set CEC dumpsys message history size to " + arg);
return 1;
}
if (mBinderService.setMessageHistorySize(value)) {
pw.println("Setting CEC dumpsys message history size to " + value);
} else {
pw.println(
"Message history size not changed, was it lower than the minimum "
+ "size?");
}
return 0;
}
default:
throw new IllegalArgumentException("Unknown operation: " + operation);
}
}
private boolean receiveCallback(String command) {
try {
if (!mLatch.await(HdmiConfig.TIMEOUT_MS, TimeUnit.MILLISECONDS)) {