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Populate Watch ID and WatchSD version from BLE data source

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This commit is contained in:
Graham Jones
2023-12-13 15:51:45 +00:00
parent 0d7bfc197e
commit 7f2855bd09
3 changed files with 71 additions and 13 deletions
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80
app/src/main/java/uk/org/openseizuredetector/SdDataSourceBLE.java
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@@ -23,6 +23,7 @@
*/
package uk.org.openseizuredetector;
import android.Manifest;
import android.bluetooth.BluetoothAdapter;
import android.bluetooth.BluetoothDevice;
import android.bluetooth.BluetoothGatt;
@@ -34,15 +35,19 @@ import android.bluetooth.BluetoothManager;
import android.bluetooth.BluetoothProfile;
import android.content.Context;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.os.Handler;
import android.preference.PreferenceManager;
import android.text.format.Time;
import android.util.Log;
import androidx.core.app.ActivityCompat;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import java.nio.charset.StandardCharsets;
import java.util.HashMap;
import java.util.List;
import java.util.UUID;
@@ -85,8 +90,8 @@ public class SdDataSourceBLE extends SdDataSource {
public static String SERV_HEART_RATE = "0000180d-0000-1000-8000-00805f9b34fb";
public static String CHAR_HEART_RATE_MEASUREMENT = "00002a37-0000-1000-8000-00805f9b34fb";
public static String SERV_OSD = "000085e9-0000-1000-8000-00805f9b34fb";
public static String CHAR_OSD_ACC_DATA = "000085e9-0001-1000-8000-00805f9b34fb";
public static String SERV_OSD = "000085e9-0000-1000-8000-00805f9b34fb";
public static String CHAR_OSD_ACC_DATA = "000085e9-0001-1000-8000-00805f9b34fb";
public static String CHAR_OSD_BATT_DATA = "000085e9-0002-1000-8000-00805f9b34fb";
public static String CHAR_OSD_WATCH_ID = "000085e9-0003-1000-8000-00805f9b34fb";
public static String CHAR_OSD_WATCH_FW = "000085e9-0004-1000-8000-00805f9b34fb";
@@ -155,7 +160,7 @@ public class SdDataSourceBLE extends SdDataSource {
try {
device = mBluetoothAdapter.getRemoteDevice(mBleDeviceAddr);
} catch (Exception e) {
Log.w(TAG, "bleConnect(): Error connecting to device address "+mBleDeviceAddr+".");
Log.w(TAG, "bleConnect(): Error connecting to device address " + mBleDeviceAddr + ".");
device = null;
}
if (device == null) {
@@ -261,16 +266,17 @@ public class SdDataSourceBLE extends SdDataSource {
if (charUuidStr.equals(CHAR_OSD_ACC_DATA)) {
Log.v(TAG, "Subscribing to Acceleration Data Change Notifications");
mOsdChar = gattCharacteristic;
setCharacteristicNotification(gattCharacteristic,true);
}
else if (charUuidStr.equals(CHAR_OSD_BATT_DATA)) {
setCharacteristicNotification(gattCharacteristic, true);
} else if (charUuidStr.equals(CHAR_OSD_BATT_DATA)) {
Log.v(TAG, "Subscribing to battery change Notifications");
setCharacteristicNotification(gattCharacteristic,true);
setCharacteristicNotification(gattCharacteristic, true);
} else if (charUuidStr.equals(CHAR_OSD_WATCH_ID)) {
Log.v(TAG, "Reading Watch ID");
executeReadCharacteristic(gattCharacteristic);
} else if (charUuidStr.equals(CHAR_OSD_WATCH_FW)) {
Log.v(TAG, "Reading Watch Firmware Version");
executeReadCharacteristic(gattCharacteristic);
}
//else if (charUuidStr.equals(CHAR_OSD_HR_DATA)) {
// Log.v(TAG, "Subscribing to HR change Notifications");
// setCharacteristicNotification(gattCharacteristic,true);
//.}
}
}
}
@@ -291,6 +297,46 @@ public class SdDataSourceBLE extends SdDataSource {
}
}
/**
* executeReadCharacteristic runs teh bluetoothGatt readCharacteristic command to read the value
* of a given characteristic.
* Because only one BLE operation can be taking place at a time, it may fail, in which case
* the read is re-tried after a 100ms delay.
* @param gattCharacteristic - the characteristic to be read.
*/
private void executeReadCharacteristic(BluetoothGattCharacteristic gattCharacteristic) {
boolean retVal = mBluetoothGatt.readCharacteristic(gattCharacteristic);
if (retVal) {
Log.d(TAG,"executeReadCharacteristic - read initiated successfully");
} else {
Log.d(TAG,"executeReadCharacteristic - read initiation failed - waiting, then re-trying");
mHandler.postDelayed(new Runnable() {
public void run() {
Log.w(TAG, "Executing delayed read of characteristic");
executeReadCharacteristic(gattCharacteristic);
}
}, 100);
}
}
private boolean permissionsOK() {
if (ActivityCompat.checkSelfPermission(mContext, Manifest.permission.BLUETOOTH_CONNECT) != PackageManager.PERMISSION_GRANTED) {
// TODO: Consider calling
// ActivityCompat#requestPermissions
// here to request the missing permissions, and then overriding
// public void onRequestPermissionsResult(int requestCode, String[] permissions,
// int[] grantResults)
// to handle the case where the user grants the permission. See the documentation
// for ActivityCompat#requestPermissions for more details.
Log.e(TAG,"permissionsOK() - Bluetooth Permmission Not Granted");
mUtil.showToast("ERROR - Bluetooth Permission not Granted");
return (false);
} else {
return (true);
}
}
public void onDataReceived(BluetoothGattCharacteristic characteristic) {
/**
* onDataReceived - called whenever a BLE characteristic notifies us that its data has changed.
@@ -349,6 +395,18 @@ public class SdDataSourceBLE extends SdDataSource {
Log.v(TAG,"onDataReceived(): CHAR_OSD_BATT_DATA: " + String.format("%d", batteryPc));
mSdData.haveSettings = true;
}
else if (characteristic.getUuid().toString().equals(CHAR_OSD_WATCH_ID)) {
byte[] rawDataBytes = characteristic.getValue();
String watchId = new String(rawDataBytes, StandardCharsets.UTF_8);
Log.v(TAG,"Received Watch ID: "+watchId);
mSdData.watchSdName = watchId;
}
else if (characteristic.getUuid().toString().equals(CHAR_OSD_WATCH_FW)) {
byte[] rawDataBytes = characteristic.getValue();
String watchFwVer = new String(rawDataBytes, StandardCharsets.UTF_8);
Log.v(TAG,"Received Watch Firmware Version: "+watchFwVer);
mSdData.watchSdVersion = watchFwVer;
}
else {
Log.v(TAG,"Unrecognised Characteristic Updated "+
characteristic.getUuid().toString());