--- /dev/null
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.bluetooth.gatt;
+
+import android.bluetooth.BluetoothUuid;
+import android.bluetooth.le.AdvertiseData;
+import android.bluetooth.le.AdvertiseSettings;
+import android.os.ParcelUuid;
+import android.util.Log;
+import com.android.bluetooth.Utils;
+import java.io.ByteArrayOutputStream;
+
+class AdvertiseHelper {
+
+ private static final String TAG = "AdvertiseHelper";
+
+ // Advertise interval for different modes.
+ private static final int ADVERTISING_INTERVAL_HIGH_MILLS = 1000;
+ private static final int ADVERTISING_INTERVAL_MEDIUM_MILLS = 250;
+ private static final int ADVERTISING_INTERVAL_LOW_MILLS = 100;
+
+ private static final int ADVERTISING_TX_POWER_MIN = 0;
+ private static final int ADVERTISING_TX_POWER_LOW = 1;
+ private static final int ADVERTISING_TX_POWER_MID = 2;
+ private static final int ADVERTISING_TX_POWER_UPPER = 3;
+ // Note this is not exposed to the Java API.
+ private static final int ADVERTISING_TX_POWER_MAX = 4;
+
+ // Note we don't expose connectable directed advertising to API.
+ private static final int ADVERTISING_EVENT_TYPE_CONNECTABLE = 0;
+ private static final int ADVERTISING_EVENT_TYPE_SCANNABLE = 2;
+ private static final int ADVERTISING_EVENT_TYPE_NON_CONNECTABLE = 3;
+
+ private static final int DEVICE_NAME_MAX = 18;
+
+ private static final int COMPLETE_LIST_16_BIT_SERVICE_UUIDS = 0X03;
+ private static final int COMPLETE_LIST_32_BIT_SERVICE_UUIDS = 0X05;
+ private static final int COMPLETE_LIST_128_BIT_SERVICE_UUIDS = 0X07;
+ private static final int SHORTENED_LOCAL_NAME = 0X08;
+ private static final int COMPLETE_LOCAL_NAME = 0X09;
+ private static final int TX_POWER_LEVEL = 0x0A;
+ private static final int SERVICE_DATA_16_BIT_UUID = 0X16;
+ private static final int SERVICE_DATA_32_BIT_UUID = 0X20;
+ private static final int SERVICE_DATA_128_BIT_UUID = 0X21;
+ private static final int MANUFACTURER_SPECIFIC_DATA = 0XFF;
+
+ public static byte[] advertiseDataToBytes(AdvertiseData data, String name) {
+
+ if (data == null) return new byte[0];
+
+ // Flags are added by lower layers of the stack, only if needed;
+ // no need to add them here.
+
+ ByteArrayOutputStream ret = new ByteArrayOutputStream();
+
+ if (data.getIncludeDeviceName()) {
+ try {
+ byte[] nameBytes = name.getBytes("UTF-8");
+
+ int nameLength = nameBytes.length;
+ byte type;
+
+ // TODO(jpawlowski) put a better limit on device name!
+ if (nameLength > DEVICE_NAME_MAX) {
+ nameLength = DEVICE_NAME_MAX;
+ type = SHORTENED_LOCAL_NAME;
+ } else {
+ type = COMPLETE_LOCAL_NAME;
+ }
+
+ ret.write(nameLength + 1);
+ ret.write(type);
+ ret.write(nameBytes, 0, nameLength);
+ } catch (java.io.UnsupportedEncodingException e) {
+ Log.e(TAG, "Can't include name - encoding error!", e);
+ }
+ }
+
+ for (int i = 0; i < data.getManufacturerSpecificData().size(); i++) {
+ int manufacturerId = data.getManufacturerSpecificData().keyAt(i);
+
+ byte[] manufacturerData = data.getManufacturerSpecificData().get(manufacturerId);
+ int dataLen = 2 + (manufacturerData == null ? 0 : manufacturerData.length);
+ byte[] concated = new byte[dataLen];
+ // First two bytes are manufacturer id in little-endian.
+ concated[0] = (byte) (manufacturerId & 0xFF);
+ concated[1] = (byte) ((manufacturerId >> 8) & 0xFF);
+ if (manufacturerData != null) {
+ System.arraycopy(manufacturerData, 0, concated, 2, manufacturerData.length);
+ }
+
+ ret.write(concated.length + 1);
+ ret.write(MANUFACTURER_SPECIFIC_DATA);
+ ret.write(concated, 0, concated.length);
+ }
+
+ if (data.getIncludeTxPowerLevel()) {
+ ret.write(2 /* Length */);
+ ret.write(TX_POWER_LEVEL);
+ ret.write(0); // lower layers will fill this value.
+ }
+
+ if (data.getServiceUuids() != null) {
+ ByteArrayOutputStream serviceUuids16 = new ByteArrayOutputStream();
+ ByteArrayOutputStream serviceUuids32 = new ByteArrayOutputStream();
+ ByteArrayOutputStream serviceUuids128 = new ByteArrayOutputStream();
+
+ for (ParcelUuid parcelUuid : data.getServiceUuids()) {
+ byte[] uuid = BluetoothUuid.uuidToBytes(parcelUuid);
+
+ if (uuid.length == BluetoothUuid.UUID_BYTES_16_BIT) {
+ serviceUuids16.write(uuid, 0, uuid.length);
+ } else if (uuid.length == BluetoothUuid.UUID_BYTES_32_BIT) {
+ serviceUuids32.write(uuid, 0, uuid.length);
+ } else /*if (uuid.length == BluetoothUuid.UUID_BYTES_128_BIT)*/ {
+ serviceUuids128.write(uuid, 0, uuid.length);
+ }
+ }
+
+ if (serviceUuids16.size() != 0) {
+ ret.write(serviceUuids16.size() + 1);
+ ret.write(COMPLETE_LIST_16_BIT_SERVICE_UUIDS);
+ ret.write(serviceUuids16.toByteArray(), 0, serviceUuids16.size());
+ }
+
+ if (serviceUuids32.size() != 0) {
+ ret.write(serviceUuids32.size() + 1);
+ ret.write(COMPLETE_LIST_32_BIT_SERVICE_UUIDS);
+ ret.write(serviceUuids32.toByteArray(), 0, serviceUuids32.size());
+ }
+
+ if (serviceUuids128.size() != 0) {
+ ret.write(serviceUuids128.size() + 1);
+ ret.write(COMPLETE_LIST_128_BIT_SERVICE_UUIDS);
+ ret.write(serviceUuids128.toByteArray(), 0, serviceUuids128.size());
+ }
+ }
+
+ if (!data.getServiceData().isEmpty()) {
+ for (ParcelUuid parcelUuid : data.getServiceData().keySet()) {
+ byte[] serviceData = data.getServiceData().get(parcelUuid);
+
+ byte[] uuid = BluetoothUuid.uuidToBytes(parcelUuid);
+ int uuidLen = uuid.length;
+
+ int dataLen = uuidLen + (serviceData == null ? 0 : serviceData.length);
+ byte[] concated = new byte[dataLen];
+
+ System.arraycopy(uuid, 0, concated, 0, uuidLen);
+
+ if (serviceData != null) {
+ System.arraycopy(serviceData, 0, concated, uuidLen, serviceData.length);
+ }
+
+ if (uuid.length == BluetoothUuid.UUID_BYTES_16_BIT) {
+ ret.write(concated.length + 1);
+ ret.write(SERVICE_DATA_16_BIT_UUID);
+ ret.write(concated, 0, concated.length);
+ } else if (uuid.length == BluetoothUuid.UUID_BYTES_32_BIT) {
+ ret.write(concated.length + 1);
+ ret.write(SERVICE_DATA_32_BIT_UUID);
+ ret.write(concated, 0, concated.length);
+ } else /*if (uuid.length == BluetoothUuid.UUID_BYTES_128_BIT)*/ {
+ ret.write(concated.length + 1);
+ ret.write(SERVICE_DATA_128_BIT_UUID);
+ ret.write(concated, 0, concated.length);
+ }
+ }
+ }
+
+ return ret.toByteArray();
+ }
+
+ // Convert settings tx power level to stack tx power level.
+ public static int getTxPowerLevel(AdvertiseSettings settings) {
+ switch (settings.getTxPowerLevel()) {
+ case AdvertiseSettings.ADVERTISE_TX_POWER_ULTRA_LOW:
+ return ADVERTISING_TX_POWER_MIN;
+ case AdvertiseSettings.ADVERTISE_TX_POWER_LOW:
+ return ADVERTISING_TX_POWER_LOW;
+ case AdvertiseSettings.ADVERTISE_TX_POWER_MEDIUM:
+ return ADVERTISING_TX_POWER_MID;
+ case AdvertiseSettings.ADVERTISE_TX_POWER_HIGH:
+ return ADVERTISING_TX_POWER_UPPER;
+ default:
+ // Shouldn't happen, just in case.
+ return ADVERTISING_TX_POWER_MID;
+ }
+ }
+
+ // Convert advertising event type to stack values.
+ public static int getAdvertisingEventType(AdvertiseClient client) {
+ AdvertiseSettings settings = client.settings;
+ if (settings.isConnectable()) {
+ return ADVERTISING_EVENT_TYPE_CONNECTABLE;
+ }
+ return client.scanResponse == null
+ ? ADVERTISING_EVENT_TYPE_NON_CONNECTABLE
+ : ADVERTISING_EVENT_TYPE_SCANNABLE;
+ }
+
+ // Convert advertising milliseconds to advertising units(one unit is 0.625 millisecond).
+ public static long getAdvertisingIntervalUnit(AdvertiseSettings settings) {
+ switch (settings.getMode()) {
+ case AdvertiseSettings.ADVERTISE_MODE_LOW_POWER:
+ return Utils.millsToUnit(ADVERTISING_INTERVAL_HIGH_MILLS);
+ case AdvertiseSettings.ADVERTISE_MODE_BALANCED:
+ return Utils.millsToUnit(ADVERTISING_INTERVAL_MEDIUM_MILLS);
+ case AdvertiseSettings.ADVERTISE_MODE_LOW_LATENCY:
+ return Utils.millsToUnit(ADVERTISING_INTERVAL_LOW_MILLS);
+ default:
+ // Shouldn't happen, just in case.
+ return Utils.millsToUnit(ADVERTISING_INTERVAL_HIGH_MILLS);
+ }
+ }
+}
package com.android.bluetooth.gatt;
-import android.bluetooth.BluetoothUuid;
import android.bluetooth.le.AdvertiseCallback;
-import android.bluetooth.le.AdvertiseData;
import android.bluetooth.le.AdvertiseSettings;
import android.os.Handler;
import android.os.HandlerThread;
import android.os.Looper;
import android.os.Message;
-import android.os.ParcelUuid;
import android.os.RemoteException;
import android.util.Log;
-
import com.android.bluetooth.Utils;
import com.android.bluetooth.btservice.AdapterService;
-
-import java.nio.ByteBuffer;
-import java.nio.ByteOrder;
-import java.io.ByteArrayOutputStream;
import java.util.HashSet;
import java.util.Set;
import java.util.UUID;
// Class that wraps advertise native related constants, methods etc.
private class AdvertiseNative {
- // Advertise interval for different modes.
- private static final int ADVERTISING_INTERVAL_HIGH_MILLS = 1000;
- private static final int ADVERTISING_INTERVAL_MEDIUM_MILLS = 250;
- private static final int ADVERTISING_INTERVAL_LOW_MILLS = 100;
// Add some randomness to the advertising min/max interval so the controller can do some
// optimization.
private static final int ADVERTISING_CHANNEL_38 = 1 << 1;
private static final int ADVERTISING_CHANNEL_39 = 1 << 2;
private static final int ADVERTISING_CHANNEL_ALL =
- ADVERTISING_CHANNEL_37 | ADVERTISING_CHANNEL_38 | ADVERTISING_CHANNEL_39;
-
- private static final int ADVERTISING_TX_POWER_MIN = 0;
- private static final int ADVERTISING_TX_POWER_LOW = 1;
- private static final int ADVERTISING_TX_POWER_MID = 2;
- private static final int ADVERTISING_TX_POWER_UPPER = 3;
- // Note this is not exposed to the Java API.
- private static final int ADVERTISING_TX_POWER_MAX = 4;
-
- // Note we don't expose connectable directed advertising to API.
- private static final int ADVERTISING_EVENT_TYPE_CONNECTABLE = 0;
- private static final int ADVERTISING_EVENT_TYPE_SCANNABLE = 2;
- private static final int ADVERTISING_EVENT_TYPE_NON_CONNECTABLE = 3;
+ ADVERTISING_CHANNEL_37 | ADVERTISING_CHANNEL_38 | ADVERTISING_CHANNEL_39;
boolean startAdverising(AdvertiseClient client) {
logd("starting advertising");
int advertiserId = client.advertiserId;
- int minAdvertiseUnit = (int) getAdvertisingIntervalUnit(client.settings);
+ int minAdvertiseUnit = (int) AdvertiseHelper.getAdvertisingIntervalUnit(client.settings);
int maxAdvertiseUnit = minAdvertiseUnit + ADVERTISING_INTERVAL_DELTA_UNIT;
- int advertiseEventType = getAdvertisingEventType(client);
- int txPowerLevel = getTxPowerLevel(client.settings);
+ int advertiseEventType = AdvertiseHelper.getAdvertisingEventType(client);
+ int txPowerLevel = AdvertiseHelper.getTxPowerLevel(client.settings);
- byte [] adv_data = advertiseDataToBytes(client.advertiseData);
- byte [] scan_resp_data = advertiseDataToBytes(client.scanResponse);
+ byte [] adv_data = AdvertiseHelper.advertiseDataToBytes(client.advertiseData,
+ mAdapterService.getName());
+ byte [] scan_resp_data = AdvertiseHelper.advertiseDataToBytes(client.scanResponse,
+ mAdapterService.getName());
int advertiseTimeoutSeconds = (int) TimeUnit.MILLISECONDS.toSeconds(
client.settings.getTimeout());
}
}
- private static final int DEVICE_NAME_MAX = 18;
-
- private static final int COMPLETE_LIST_16_BIT_SERVICE_UUIDS = 0X03;
- private static final int COMPLETE_LIST_32_BIT_SERVICE_UUIDS = 0X05;
- private static final int COMPLETE_LIST_128_BIT_SERVICE_UUIDS = 0X07;
- private static final int SHORTENED_LOCAL_NAME = 0X08;
- private static final int COMPLETE_LOCAL_NAME = 0X09;
- private static final int TX_POWER_LEVEL = 0x0A;
- private static final int SERVICE_DATA_16_BIT_UUID = 0X16;
- private static final int SERVICE_DATA_32_BIT_UUID = 0X20;
- private static final int SERVICE_DATA_128_BIT_UUID = 0X21;
- private static final int MANUFACTURER_SPECIFIC_DATA = 0XFF;
-
- private byte[] advertiseDataToBytes(AdvertiseData data) {
-
- if (data == null)
- return new byte[0];
-
- // Flags are added by lower layers of the stack, only if needed;
- // no need to add them here.
-
- ByteArrayOutputStream ret = new ByteArrayOutputStream();
-
- if (data.getIncludeDeviceName()) {
- String name = mAdapterService.getName();
- try {
- byte[] nameBytes = name.getBytes("UTF-8");
-
- int nameLength = nameBytes.length;
- byte type;
-
- // TODO(jpawlowski) put a better limit on device name!
- if (nameLength > DEVICE_NAME_MAX) {
- nameLength = DEVICE_NAME_MAX;
- type = SHORTENED_LOCAL_NAME;
- } else {
- type = COMPLETE_LOCAL_NAME;
- }
-
- ret.write(nameLength + 1);
- ret.write(type);
- ret.write(nameBytes, 0, nameLength);
- } catch (java.io.UnsupportedEncodingException e) {
- loge("Can't include name - encoding error!", e);
- }
- }
-
- for (int i = 0; i< data.getManufacturerSpecificData().size(); i++) {
- int manufacturerId = data.getManufacturerSpecificData().keyAt(i);
-
- byte[] manufacturerData = data.getManufacturerSpecificData().get(
- manufacturerId);
- int dataLen = 2 + (manufacturerData == null ? 0 : manufacturerData.length);
- byte[] concated = new byte[dataLen];
- // First two bytes are manufacturer id in little-endian.
- concated[0] = (byte) (manufacturerId & 0xFF);
- concated[1] = (byte) ((manufacturerId >> 8) & 0xFF);
- if (manufacturerData != null) {
- System.arraycopy(manufacturerData, 0, concated, 2, manufacturerData.length);
- }
-
- ret.write(concated.length + 1);
- ret.write(MANUFACTURER_SPECIFIC_DATA);
- ret.write(concated, 0, concated.length);
- }
-
- if (data.getIncludeTxPowerLevel()) {
- ret.write(2 /* Length */);
- ret.write(TX_POWER_LEVEL);
- ret.write(0); // lower layers will fill this value.
- }
-
- if (data.getServiceUuids() != null) {
- ByteArrayOutputStream serviceUuids16 = new ByteArrayOutputStream();
- ByteArrayOutputStream serviceUuids32 = new ByteArrayOutputStream();
- ByteArrayOutputStream serviceUuids128 = new ByteArrayOutputStream();
-
- for (ParcelUuid parcelUuid : data.getServiceUuids()) {
- byte[] uuid = BluetoothUuid.uuidToBytes(parcelUuid);
-
- if (uuid.length == BluetoothUuid.UUID_BYTES_16_BIT) {
- serviceUuids16.write(uuid, 0, uuid.length);
- } else if (uuid.length == BluetoothUuid.UUID_BYTES_32_BIT) {
- serviceUuids32.write(uuid, 0, uuid.length);
- } else /*if (uuid.length == BluetoothUuid.UUID_BYTES_128_BIT)*/ {
- serviceUuids128.write(uuid, 0, uuid.length);
- }
- }
-
- if (serviceUuids16.size() != 0) {
- ret.write(serviceUuids16.size() + 1);
- ret.write(COMPLETE_LIST_16_BIT_SERVICE_UUIDS);
- ret.write(serviceUuids16.toByteArray(), 0, serviceUuids16.size());
- }
-
- if (serviceUuids32.size() != 0) {
- ret.write(serviceUuids32.size() + 1);
- ret.write(COMPLETE_LIST_32_BIT_SERVICE_UUIDS);
- ret.write(serviceUuids32.toByteArray(), 0, serviceUuids32.size());
- }
-
- if (serviceUuids128.size() != 0) {
- ret.write(serviceUuids128.size() + 1);
- ret.write(COMPLETE_LIST_128_BIT_SERVICE_UUIDS);
- ret.write(serviceUuids128.toByteArray(), 0, serviceUuids128.size());
- }
- }
-
- if (!data.getServiceData().isEmpty()) {
- for (ParcelUuid parcelUuid: data.getServiceData().keySet()) {
- byte[] serviceData = data.getServiceData().get(parcelUuid);
-
- byte[] uuid = BluetoothUuid.uuidToBytes(parcelUuid);
- int uuidLen = uuid.length;
-
- int dataLen = uuidLen + (serviceData == null ? 0 : serviceData.length);
- byte[] concated = new byte[dataLen];
-
- System.arraycopy(uuid, 0, concated, 0, uuidLen);
-
- if (serviceData != null) {
- System.arraycopy(serviceData, 0, concated, uuidLen, serviceData.length);
- }
-
- if (uuid.length == BluetoothUuid.UUID_BYTES_16_BIT) {
- ret.write(concated.length + 1);
- ret.write(SERVICE_DATA_16_BIT_UUID);
- ret.write(concated, 0, concated.length);
- } else if (uuid.length == BluetoothUuid.UUID_BYTES_32_BIT) {
- ret.write(concated.length + 1);
- ret.write(SERVICE_DATA_32_BIT_UUID);
- ret.write(concated, 0, concated.length);
- } else /*if (uuid.length == BluetoothUuid.UUID_BYTES_128_BIT)*/ {
- ret.write(concated.length + 1);
- ret.write(SERVICE_DATA_128_BIT_UUID);
- ret.write(concated, 0, concated.length);
- }
- }
- }
-
- return ret.toByteArray();
- }
-
- // Convert settings tx power level to stack tx power level.
- private int getTxPowerLevel(AdvertiseSettings settings) {
- switch (settings.getTxPowerLevel()) {
- case AdvertiseSettings.ADVERTISE_TX_POWER_ULTRA_LOW:
- return ADVERTISING_TX_POWER_MIN;
- case AdvertiseSettings.ADVERTISE_TX_POWER_LOW:
- return ADVERTISING_TX_POWER_LOW;
- case AdvertiseSettings.ADVERTISE_TX_POWER_MEDIUM:
- return ADVERTISING_TX_POWER_MID;
- case AdvertiseSettings.ADVERTISE_TX_POWER_HIGH:
- return ADVERTISING_TX_POWER_UPPER;
- default:
- // Shouldn't happen, just in case.
- return ADVERTISING_TX_POWER_MID;
- }
- }
-
- // Convert advertising event type to stack values.
- private int getAdvertisingEventType(AdvertiseClient client) {
- AdvertiseSettings settings = client.settings;
- if (settings.isConnectable()) {
- return ADVERTISING_EVENT_TYPE_CONNECTABLE;
- }
- return client.scanResponse == null ? ADVERTISING_EVENT_TYPE_NON_CONNECTABLE
- : ADVERTISING_EVENT_TYPE_SCANNABLE;
- }
-
- // Convert advertising milliseconds to advertising units(one unit is 0.625 millisecond).
- private long getAdvertisingIntervalUnit(AdvertiseSettings settings) {
- switch (settings.getMode()) {
- case AdvertiseSettings.ADVERTISE_MODE_LOW_POWER:
- return Utils.millsToUnit(ADVERTISING_INTERVAL_HIGH_MILLS);
- case AdvertiseSettings.ADVERTISE_MODE_BALANCED:
- return Utils.millsToUnit(ADVERTISING_INTERVAL_MEDIUM_MILLS);
- case AdvertiseSettings.ADVERTISE_MODE_LOW_LATENCY:
- return Utils.millsToUnit(ADVERTISING_INTERVAL_LOW_MILLS);
- default:
- // Shouldn't happen, just in case.
- return Utils.millsToUnit(ADVERTISING_INTERVAL_HIGH_MILLS);
- }
- }
-
// Native functions
private native void registerAdvertiserNative(long app_uuid_lsb,
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