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https://github.com/bluekitchen/btstack.git
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daemon/java: add LEStreamerClient
This commit is contained in:
Matthias Ringwald
parent
fccb5f315e
commit
31ee742e25
@ -8,7 +8,7 @@
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<property name="classes.dir" value="${build.dir}/classes"/>
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<property name="jar.dir" value="${build.dir}/jar"/>
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<property name="test-class" value="com.bluekitchen.GATTClientTest"/>
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<property name="test-class" value="com.bluekitchen.LEStreamerClient"/>
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<target name="clean">
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<delete dir="${build.dir}"/>
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@ -0,0 +1,192 @@
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package com.bluekitchen;
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import com.bluekitchen.btstack.BD_ADDR;
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import com.bluekitchen.btstack.BT_UUID;
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import com.bluekitchen.btstack.BTstack;
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import com.bluekitchen.btstack.GATTCharacteristic;
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import com.bluekitchen.btstack.GATTService;
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import com.bluekitchen.btstack.Packet;
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import com.bluekitchen.btstack.PacketHandler;
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import com.bluekitchen.btstack.Util;
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import com.bluekitchen.btstack.event.BTstackEventState;
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import com.bluekitchen.btstack.event.GAPEventAdvertisingReport;
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import com.bluekitchen.btstack.event.GATTEventCharacteristicQueryResult;
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import com.bluekitchen.btstack.event.GATTEventCharacteristicValueQueryResult;
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import com.bluekitchen.btstack.event.GATTEventNotification;
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import com.bluekitchen.btstack.event.GATTEventQueryComplete;
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import com.bluekitchen.btstack.event.GATTEventServiceQueryResult;
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import com.bluekitchen.btstack.event.HCIEventDisconnectionComplete;
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import com.bluekitchen.btstack.event.HCIEventLEConnectionComplete;
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import com.bluekitchen.btstack.event.SMEventJustWorksRequest;
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import java.nio.charset.StandardCharsets;
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public class LEStreamerClient implements PacketHandler {
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private enum STATE {
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w4_btstack_working, w4_scan_result, w4_connected, w4_services_complete, w4_characteristic_complete,
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w4_write_client_config_characteristic_complete, active
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};
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private BTstack btstack;
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private STATE state;
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private int testAddrType;
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private BD_ADDR testAddr = new BD_ADDR("00:1A:7D:DA:71:01");
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private int connectionHandle;
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private BT_UUID testServiceUUID = new BT_UUID("0000FF10-0000-1000-8000-00805F9B34FB");
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private BT_UUID testCharacteristicUUID = new BT_UUID("0000FF11-0000-1000-8000-00805F9B34FB");
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private byte testNotification = 1;
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private GATTService testService;
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private GATTCharacteristic testCharacteristic;
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public void handlePacket(Packet packet){
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System.out.println("Event " + packet);
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if (packet instanceof SMEventJustWorksRequest){
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SMEventJustWorksRequest event = (SMEventJustWorksRequest) packet;
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System.out.println("Received Just Works pairing request from " + event.getAddress() + " -> auto-accept");
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btstack.SMJustWorksConfirm(event.getHandle());
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return;
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}
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if (packet instanceof HCIEventDisconnectionComplete){
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System.out.println("Received dissconnect, restart scannning.");
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state = STATE.w4_scan_result;
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btstack.GAPLEScanStart();
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return;
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}
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switch (state){
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case w4_btstack_working:
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if (packet instanceof BTstackEventState){
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BTstackEventState event = (BTstackEventState) packet;
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if (event.getState() == 2) {
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System.out.println("BTstack working, start scanning.");
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state = STATE.w4_scan_result;
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btstack.GAPLEScanStart();
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}
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}
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break;
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case w4_scan_result:
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if (packet instanceof GAPEventAdvertisingReport){
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// Advertisement received. Connect to the found BT address.
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GAPEventAdvertisingReport report = (GAPEventAdvertisingReport) packet;
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System.out.println(String.format("Adv: type %d, addr %s\ndata: %s\n", report.getAddressType(), report.getAddress(), Util.asHexdump(report.getData())));
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// hack to find 'LE Streamer'
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if (new String(report.getData(), StandardCharsets.UTF_8).indexOf("LE Streamer") > 0){
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testAddrType = report.getAddressType();
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testAddr = report.getAddress();
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System.out.println(String.format("LE Streamer found, connect to %s\n", testAddr));
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btstack.GAPLEScanStop();
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state = STATE.w4_connected;
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btstack.GAPLEConnect(testAddrType, testAddr);
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}
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}
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break;
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case w4_connected:
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if (packet instanceof HCIEventLEConnectionComplete){
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HCIEventLEConnectionComplete event = (HCIEventLEConnectionComplete) packet;
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if (event.getStatus() != 0) {
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System.out.println(testAddr + String.format(" - connection failed, status %d.\nRestart scanning.", event.getStatus()));
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state = STATE.w4_scan_result;
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btstack.GAPLEScanStart();
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break;
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}
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// Query test service.
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state = STATE.w4_services_complete;
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connectionHandle = event.getConnectionHandle();
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System.out.println(testAddr + String.format(" - connected %x.\nQuery streamer service.", connectionHandle));
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btstack.GATTDiscoverPrimaryServicesByUUID128(connectionHandle, testServiceUUID);
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}
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break;
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case w4_services_complete:
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if (packet instanceof GATTEventServiceQueryResult){
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// Store streamer service. Wait for GATTEventQueryComplete event to send next GATT command.
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GATTEventServiceQueryResult event = (GATTEventServiceQueryResult) packet;
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System.out.println(testAddr + String.format(" - streamer service %s", event.getService().getUUID()));
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testService = event.getService();
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break;
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}
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if (packet instanceof GATTEventQueryComplete){
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// Check if streamer service is found.
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if (testService == null) {
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System.out.println(testAddr + " - no streamer service. \nRestart scanning.");
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state = STATE.w4_scan_result;
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btstack.GAPLEScanStart();
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break;
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}
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System.out.println(testAddr + " - query streamer characteristic.");
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state = STATE.w4_characteristic_complete;
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btstack.GATTDiscoverCharacteristicsForServiceByUUID128(connectionHandle, testService, testCharacteristicUUID);
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}
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break;
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case w4_characteristic_complete:
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if (packet instanceof GATTEventCharacteristicQueryResult){
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// Store streamer characteristic. Wait for GATTEventQueryComplete event to send next GATT command.
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GATTEventCharacteristicQueryResult event = (GATTEventCharacteristicQueryResult) packet;
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testCharacteristic = event.getCharacteristic();
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System.out.println(testAddr + " - streamer characteristic found.");
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break;
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}
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if (!(packet instanceof GATTEventQueryComplete)) break;
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if (testCharacteristic == null) {
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System.out.println("No streamer characteristic found");
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break;
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}
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System.out.println(testAddr + " - enable notifications.");
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state = STATE.w4_write_client_config_characteristic_complete;
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btstack.GATTWriteClientCharacteristicConfiguration(connectionHandle, testCharacteristic, this.testNotification);
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break;
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case w4_write_client_config_characteristic_complete:
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if (packet instanceof GATTEventQueryComplete){
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System.out.println(testAddr + " - notification enabled.");
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state = STATE.active;
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}
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break;
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case active:
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if (packet instanceof GATTEventNotification){
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System.out.println("Data:");
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System.out.println(packet.toString());
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}
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break;
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default:
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break;
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}
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}
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void test(){
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System.out.println("LE Streamer Client");
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// connect to BTstack Daemon via default port on localhost
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btstack = new BTstack();
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btstack.setTcpPort(BTstack.DEFAULT_TCP_PORT);
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btstack.registerPacketHandler(this);
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boolean ok = btstack.connect();
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if (!ok) {
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System.out.println("Failed to connect to BTstack Server");
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return;
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}
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System.out.println("BTstackSetPowerMode(1)");
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// btstack.SMSetAuthenticationRequirements(8 | 4);
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// btstack.SMSetIoCapabilities(4);
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state = STATE.w4_btstack_working;
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btstack.BTstackSetPowerMode(1);
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}
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public static void main(String args[]){
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new LEStreamerClient().test();
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}
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}
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