private void restartInquiry() {
clearMessages();
addMessage("Restart Inquiry");
state = STATE.w4_scan_result;
services.clear();
devices.clear();
counter = 0;
btstack.HCIInquiry(HCI_INQUIRY_LAP, INQUIRY_INTERVAL, 0);
}
@SuppressLint("DefaultLocale")
public void handlePacket(Packet packet) {
if (packet instanceof HCIEventHardwareError) {
clearMessages();
addMessage(
"Received HCIEventHardwareError, \nhandle power cycle of the Bluetooth \nchip of the device.");
}
if (packet instanceof HCIEventDisconnectionComplete) {
HCIEventDisconnectionComplete event = (HCIEventDisconnectionComplete) packet;
testHandle = event.getConnectionHandle();
addMessage(
String.format(
"Received disconnect, status %d, handle %x", event.getStatus(), testHandle));
restartInquiry();
return;
}
switch (state) {
case w4_btstack_working:
if (packet instanceof BTstackEventState) {
BTstackEventState event = (BTstackEventState) packet;
if (event.getState() == 2) {
addMessage("BTstack working. Set write inquiry mode.");
state = STATE.w4_write_inquiry_mode;
btstack.HCIWriteInquiryMode(1); // with RSSI
}
}
break;
case w4_write_inquiry_mode:
if (packet instanceof HCIEventCommandComplete) {
state = STATE.w4_scan_result;
btstack.HCIInquiry(HCI_INQUIRY_LAP, INQUIRY_INTERVAL, 0);
}
break;
case w4_scan_result:
if (packet instanceof HCIEventInquiryResultWithRssi) {
HCIEventInquiryResultWithRssi result = (HCIEventInquiryResultWithRssi) packet;
devices.add(
new RemoteDevice(
result.getBdAddr(), result.getPageScanRepetitionMode(), result.getClockOffset()));
addMessage("Found device: " + result.getBdAddr());
}
if (packet instanceof HCIEventInquiryComplete) {
state = STATE.w4_remote_name;
if (hasMoreRemoteNameRequests()) {
doNextRemoteNameRequest();
break;
}
}
break;
case w4_remote_name:
if (packet instanceof HCIEventRemoteNameRequestComplete) {
HCIEventRemoteNameRequestComplete result = (HCIEventRemoteNameRequestComplete) packet;
if (result.getStatus() == 0) {
// store name on success
setNameForDeviceWithBDAddr(result.getRemoteName(), result.getBdAddr());
}
if (hasMoreRemoteNameRequests()) {
doNextRemoteNameRequest();
break;
}
// discovery done, connect to device with remote name prefix
RemoteDevice remoteDevice = null;
for (RemoteDevice device : devices) {
if (device.getName() != null
&& device.getName().startsWith(REMOTE_DEVICE_NAME_PREFIX)) {
remoteDevice = device;
}
}
// try first one otherwise
if (remoteDevice == null && devices.size() > 0) {
remoteDevice = devices.get(0);
}
// no device, restart inquiry
if (remoteDevice == null) {
restartInquiry();
break;
}
// start SDP query for RFCOMMM services
remoteBDAddr = remoteDevice.getBDAddress();
if (remoteDevice.getName() == null) {
addMessage("Start SDP Query of " + remoteDevice.getBDAddress());
} else {
addMessage("Start SDP Query of " + remoteDevice.getName());
}
state = STATE.w4_sdp_query_result;
byte[] serviceSearchPattern = Util.serviceSearchPatternForUUID16(SPP_UUID);
btstack.SDPClientQueryRFCOMMServices(remoteBDAddr, serviceSearchPattern);
break;
}
break;
case w4_sdp_query_result:
if (packet instanceof SDPQueryRFCOMMService) {
SDPQueryRFCOMMService service = (SDPQueryRFCOMMService) packet;
services.add(service);
addMessage(
String.format(
"Found \"%s\", channel %d", service.getName(), service.getRFCOMMChannel()));
}
if (packet instanceof SDPQueryComplete) {
// find service with "SPP" prefix
SDPQueryRFCOMMService selectedService = null;
for (SDPQueryRFCOMMService service : services) {
if (service.getName().startsWith(RFCOMM_SERVICE_PREFIX)) {
selectedService = service;
break;
}
}
// restart demo, if no service with prefix found
if (selectedService == null) {
restartInquiry();
break;
}
// connect
state = STATE.w4_connected;
clearMessages();
addMessage("SPP Test Application / Part 2");
addMessage("Connect to channel nr " + selectedService.getRFCOMMChannel());
btstack.RFCOMMCreateChannel(remoteBDAddr, selectedService.getRFCOMMChannel());
}
break;
case w4_connected:
if (packet instanceof RFCOMMEventOpenChannelComplete) {
RFCOMMEventOpenChannelComplete e = (RFCOMMEventOpenChannelComplete) packet;
if (e.getStatus() != 0) {
addMessage("RFCOMM channel open failed, status " + e.getStatus());
} else {
state = STATE.active;
rfcommChannelID = e.getRFCOMMCid();
mtu = e.getMaxFrameSize();
addMessage(
String.format(
"RFCOMM channel open succeeded. \nNew RFCOMM Channel ID %d,\n max frame size %d",
rfcommChannelID, mtu));
counter = 0;
new Thread(
new Runnable() {
@Override
public void run() {
try {
while (state == STATE.active) {
Thread.sleep(1000);
byte[] data;
try {
data =
String.format("BTstack SPP Counter %d\n", counter)
.getBytes("utf8");
if (counter < Integer.MAX_VALUE) {
counter++;
} else {
counter = 0;
}
btstack.RFCOMMSendData(rfcommChannelID, data);
} catch (UnsupportedEncodingException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
} catch (InterruptedException e) {
}
}
})
.start();
}
}
break;
case active:
if (packet instanceof RFCOMMDataPacket) {
addTempMessage("Received RFCOMM data packet: \n" + packet.toString());
}
break;
default:
break;
}
}