Android/frameworks_base
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Implement retransmission of cec request.

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BUG: 16218422
Change-Id: I4a6692ba8815e9a0ae26c872656b31b678d54fd6

Conflicts:
	services/core/java/com/android/server/hdmi/HdmiCecController.java
This commit is contained in:
Jungshik Jang
2014-07-11 11:56:46 +09:00
parent ff0d298adb
commit 8ed86c467a
2 changed files with 20 additions and 4 deletions
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17
services/core/java/com/android/server/hdmi/HdmiCecController.java
View File

@@ -533,16 +533,25 @@ final class HdmiCecController {
@Override
public void run() {
byte[] body = buildBody(cecMessage.getOpcode(), cecMessage.getParams());
final int error = nativeSendCecCommand(mNativePtr, cecMessage.getSource(),
cecMessage.getDestination(), body);
if (error != Constants.SEND_RESULT_SUCCESS) {
int i = 0;
int errorCode = Constants.SEND_RESULT_SUCCESS;
do {
errorCode = nativeSendCecCommand(mNativePtr, cecMessage.getSource(),
cecMessage.getDestination(), body);
if (errorCode == Constants.SEND_RESULT_SUCCESS) {
break;
}
} while (i++ < HdmiConfig.RETRANSMISSION_COUNT);
final int finalError = errorCode;
if (finalError != Constants.SEND_RESULT_SUCCESS) {
Slog.w(TAG, "Failed to send " + cecMessage);
}
if (callback != null) {
runOnServiceThread(new Runnable() {
@Override
public void run() {
callback.onSendCompleted(error);
callback.onSendCompleted(finalError);
}
});
}

7
services/core/java/com/android/server/hdmi/HdmiConfig.java
View File

@@ -39,5 +39,12 @@ final class HdmiConfig {
// Number of retries for polling each device in address allocation mechanism.
static final int ADDRESS_ALLOCATION_RETRY = 3;
// CEC spec said that it should try retransmission at least once.
// The actual number of send request for a single command will be at most
// RETRANSMISSION_COUNT + 1. Note that it affects only to normal commands
// and polling message for logical address allocation and device discovery
// action. They will have their own retransmission count.
static final int RETRANSMISSION_COUNT = 1;
private HdmiConfig() { /* cannot be instantiated */ }
}