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Code Issues Releases Activity

AndroidGCS HID: Use the dettached message to shut down HID telemetry properly

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This commit is contained in:
James Cotton 2012-08-13 01:25:08 -05:00
parent daab45d14d
commit 3ea9ecd53b
1 changed files with 22 additions and 9 deletions
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31
androidgcs/src/org/openpilot/androidgcs/telemetry/HidUAVTalk.java
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@ -64,6 +64,7 @@ public class HidUAVTalk extends TelemetryTask {
private boolean readPending = false;
private boolean writePending = false;
private IntentFilter deviceAttachedFilter;
public HidUAVTalk(OPTelemetryService service) {
super(service);
@ -73,7 +74,7 @@ public class HidUAVTalk extends TelemetryTask {
public void disconnect() {
CleanUpAndClose();
//hostDisplayActivity.unregisterReceiver(usbReceiver);
telemService.unregisterReceiver(usbReceiver);
telemService.unregisterReceiver(usbPermissionReceiver);
super.disconnect();
@ -110,6 +111,11 @@ public class HidUAVTalk extends TelemetryTask {
permissionFilter = new IntentFilter(ACTION_USB_PERMISSION);
telemService.registerReceiver(usbPermissionReceiver, permissionFilter);
deviceAttachedFilter = new IntentFilter();
//deviceAttachedFilter.addAction(UsbManager.ACTION_USB_DEVICE_ATTACHED);
deviceAttachedFilter.addAction(UsbManager.ACTION_USB_DEVICE_DETACHED);
telemService.registerReceiver(usbReceiver, deviceAttachedFilter);
// Go through all the devices plugged in
HashMap<String, UsbDevice> deviceList = usbManager.getDeviceList();
if (DEBUG) Log.d(TAG, "Found " + deviceList.size() + " devices");
@ -176,7 +182,6 @@ public class HidUAVTalk extends TelemetryTask {
}
};
/* TODO: Detect dettached events and close the connection
private final BroadcastReceiver usbReceiver = new BroadcastReceiver()
{
@Override
@ -195,8 +200,10 @@ public class HidUAVTalk extends TelemetryTask {
{
if (device.equals(currentDevice))
{
if (DEBUG) Log.d(TAG, "Matching device disconnected");
// call your method that cleans up and closes communication with the device
CleanUpAndClose();
disconnect();
}
}
}
@ -213,7 +220,7 @@ public class HidUAVTalk extends TelemetryTask {
}
}
}
}; */
};
protected void CleanUpAndClose() {
@ -314,8 +321,10 @@ public class HidUAVTalk extends TelemetryTask {
if (returned == readRequest) {
if (DEBUG) Log.d(TAG, "Received read request");
readData();
} else
} else {
Log.e(TAG, "Received unknown USB response");
break;
}
}
}
@ -328,7 +337,8 @@ public class HidUAVTalk extends TelemetryTask {
if (DEBUG) Log.d(TAG, "Starting HID write thread");
while(!shutdown) {
try {
sendDataSynchronous();
if (sendDataSynchronous() == false)
break;
} catch (InterruptedException e) {
break;
}
@ -436,15 +446,18 @@ public class HidUAVTalk extends TelemetryTask {
* Send a packet if data is available
* @throws InterruptedException
*/
public void sendDataSynchronous() throws InterruptedException {
public boolean sendDataSynchronous() throws InterruptedException {
ByteBuffer packet = outTalkStream.getHIDpacketBlocking();
if (packet != null) {
if (DEBUG) Log.d(TAG, "sendDataSynchronous() Writing to device()");
if (usbDeviceConnection.bulkTransfer(usbEndpointWrite, packet.array(), MAX_HID_PACKET_SIZE, 1000) < 0)
Log.e(TAG, "Failed to perform bult write");
if (usbDeviceConnection.bulkTransfer(usbEndpointWrite, packet.array(), MAX_HID_PACKET_SIZE, 1000) < 0) {
Log.e(TAG, "Failed to perform bulk write");
return false;
}
}
return true;
}
/*********** Helper classes for telemetry streams ************/