BluetoothGattCharacteristic.java revision 8d312a84d627dd50f23291fb0ed97b871ef28bb7
19908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta/* 29908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * Copyright (C) 2013 The Android Open Source Project 39908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * 49908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * Licensed under the Apache License, Version 2.0 (the "License"); 59908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * you may not use this file except in compliance with the License. 69908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * You may obtain a copy of the License at 79908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * 89908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * http://www.apache.org/licenses/LICENSE-2.0 99908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * 109908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * Unless required by applicable law or agreed to in writing, software 119908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * distributed under the License is distributed on an "AS IS" BASIS, 129908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 139908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * See the License for the specific language governing permissions and 149908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * limitations under the License. 159908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 169908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Battapackage android.bluetooth; 179908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 188d312a84d627dd50f23291fb0ed97b871ef28bb7Jakub Pawlowskiimport android.os.Parcel; 198d312a84d627dd50f23291fb0ed97b871ef28bb7Jakub Pawlowskiimport android.os.Parcelable; 208d312a84d627dd50f23291fb0ed97b871ef28bb7Jakub Pawlowskiimport android.os.ParcelUuid; 219908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Battaimport java.util.ArrayList; 229908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Battaimport java.util.List; 239908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Battaimport java.util.UUID; 249908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 259908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta/** 26ddf7e4756c31d0ed90802f98abeaa79df6d16b2aMatthew Xie * Represents a Bluetooth GATT Characteristic 2733ec9840c70ddc7cd008ecf2660c441defc5f302Matthew Xie * 2833ec9840c70ddc7cd008ecf2660c441defc5f302Matthew Xie * <p>A GATT characteristic is a basic data element used to construct a GATT service, 2933ec9840c70ddc7cd008ecf2660c441defc5f302Matthew Xie * {@link BluetoothGattService}. The characteristic contains a value as well as 3033ec9840c70ddc7cd008ecf2660c441defc5f302Matthew Xie * additional information and optional GATT descriptors, {@link BluetoothGattDescriptor}. 319908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 328d312a84d627dd50f23291fb0ed97b871ef28bb7Jakub Pawlowskipublic class BluetoothGattCharacteristic implements Parcelable { 339908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 349908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /** 359908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * Characteristic proprty: Characteristic is broadcastable. 369908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 379908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta public static final int PROPERTY_BROADCAST = 0x01; 389908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 399908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /** 409908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * Characteristic property: Characteristic is readable. 419908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 429908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta public static final int PROPERTY_READ = 0x02; 439908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 449908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /** 459908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * Characteristic property: Characteristic can be written without response. 469908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 479908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta public static final int PROPERTY_WRITE_NO_RESPONSE = 0x04; 489908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 499908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /** 509908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * Characteristic property: Characteristic can be written. 519908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 529908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta public static final int PROPERTY_WRITE = 0x08; 539908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 549908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /** 559908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * Characteristic property: Characteristic supports notification 569908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 579908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta public static final int PROPERTY_NOTIFY = 0x10; 589908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 599908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /** 609908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * Characteristic property: Characteristic supports indication 619908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 629908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta public static final int PROPERTY_INDICATE = 0x20; 639908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 649908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /** 659908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * Characteristic property: Characteristic supports write with signature 669908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 679908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta public static final int PROPERTY_SIGNED_WRITE = 0x40; 689908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 699908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /** 709908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * Characteristic property: Characteristic has extended properties 719908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 729908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta public static final int PROPERTY_EXTENDED_PROPS = 0x80; 739908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 749908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /** 759908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * Characteristic read permission 769908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 779908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta public static final int PERMISSION_READ = 0x01; 789908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 799908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /** 809908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * Characteristic permission: Allow encrypted read operations 819908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 829908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta public static final int PERMISSION_READ_ENCRYPTED = 0x02; 839908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 849908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /** 859908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * Characteristic permission: Allow reading with man-in-the-middle protection 869908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 879908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta public static final int PERMISSION_READ_ENCRYPTED_MITM = 0x04; 889908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 899908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /** 909908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * Characteristic write permission 919908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 929908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta public static final int PERMISSION_WRITE = 0x10; 939908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 949908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /** 959908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * Characteristic permission: Allow encrypted writes 969908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 979908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta public static final int PERMISSION_WRITE_ENCRYPTED = 0x20; 989908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 999908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /** 1009908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * Characteristic permission: Allow encrypted writes with man-in-the-middle 1019908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * protection 1029908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 1039908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta public static final int PERMISSION_WRITE_ENCRYPTED_MITM = 0x40; 1049908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 1059908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /** 1069908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * Characteristic permission: Allow signed write operations 1079908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 1089908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta public static final int PERMISSION_WRITE_SIGNED = 0x80; 1099908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 1109908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /** 1119908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * Characteristic permission: Allow signed write operations with 1129908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * man-in-the-middle protection 1139908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 1149908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta public static final int PERMISSION_WRITE_SIGNED_MITM = 0x100; 1159908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 1169908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /** 1179908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * Write characteristic, requesting acknoledgement by the remote device 1189908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 1199908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta public static final int WRITE_TYPE_DEFAULT = 0x02; 1209908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 1219908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /** 1229908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * Wrtite characteristic without requiring a response by the remote device 1239908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 1249908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta public static final int WRITE_TYPE_NO_RESPONSE = 0x01; 1259908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 1269908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /** 127ddf7e4756c31d0ed90802f98abeaa79df6d16b2aMatthew Xie * Write characteristic including authentication signature 1289908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 1299908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta public static final int WRITE_TYPE_SIGNED = 0x04; 1309908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 1319908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /** 1329908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * Characteristic value format type uint8 1339908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 1349908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta public static final int FORMAT_UINT8 = 0x11; 1359908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 1369908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /** 1379908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * Characteristic value format type uint16 1389908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 1399908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta public static final int FORMAT_UINT16 = 0x12; 1409908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 1419908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /** 1429908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * Characteristic value format type uint32 1439908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 1449908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta public static final int FORMAT_UINT32 = 0x14; 1459908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 1469908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /** 1479908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * Characteristic value format type sint8 1489908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 1499908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta public static final int FORMAT_SINT8 = 0x21; 1509908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 1519908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /** 1529908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * Characteristic value format type sint16 1539908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 1549908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta public static final int FORMAT_SINT16 = 0x22; 1559908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 1569908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /** 1579908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * Characteristic value format type sint32 1589908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 1599908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta public static final int FORMAT_SINT32 = 0x24; 1609908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 1619908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /** 1629908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * Characteristic value format type sfloat (16-bit float) 1639908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 1649908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta public static final int FORMAT_SFLOAT = 0x32; 1659908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 1669908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /** 1679908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * Characteristic value format type float (32-bit float) 1689908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 1699908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta public static final int FORMAT_FLOAT = 0x34; 1709908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 1719908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 1729908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /** 1739908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * The UUID of this characteristic. 1749908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * @hide 1759908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 1769908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta protected UUID mUuid; 1779908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 1789908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /** 1799908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * Instance ID for this characteristic. 1809908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * @hide 1819908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 1829908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta protected int mInstance; 1839908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 1849908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /** 1859908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * Characteristic properties. 1869908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * @hide 1879908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 1889908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta protected int mProperties; 1899908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 1909908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /** 1919908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * Characteristic permissions. 1929908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * @hide 1939908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 1949908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta protected int mPermissions; 1959908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 1969908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /** 1979908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * Key size (default = 16). 1989908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * @hide 1999908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 2009908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta protected int mKeySize = 16; 2019908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 2029908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /** 2039908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * Write type for this characteristic. 2049908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * See WRITE_TYPE_* constants. 2059908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * @hide 2069908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 2079908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta protected int mWriteType; 2089908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 2099908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /** 2109908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * Back-reference to the service this characteristic belongs to. 2119908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * @hide 2129908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 2139908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta protected BluetoothGattService mService; 2149908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 2159908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /** 2169908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * The cached value of this characteristic. 2179908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * @hide 2189908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 2199908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta protected byte[] mValue; 2209908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 2219908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /** 2229908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * List of descriptors included in this characteristic. 2239908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 2249908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta protected List<BluetoothGattDescriptor> mDescriptors; 2259908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 2269908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /** 227ddf7e4756c31d0ed90802f98abeaa79df6d16b2aMatthew Xie * Create a new BluetoothGattCharacteristic. 228ddf7e4756c31d0ed90802f98abeaa79df6d16b2aMatthew Xie * <p>Requires {@link android.Manifest.permission#BLUETOOTH} permission. 229ddf7e4756c31d0ed90802f98abeaa79df6d16b2aMatthew Xie * 230ddf7e4756c31d0ed90802f98abeaa79df6d16b2aMatthew Xie * @param uuid The UUID for this characteristic 231ddf7e4756c31d0ed90802f98abeaa79df6d16b2aMatthew Xie * @param properties Properties of this characteristic 232ddf7e4756c31d0ed90802f98abeaa79df6d16b2aMatthew Xie * @param permissions Permissions for this characteristic 233ddf7e4756c31d0ed90802f98abeaa79df6d16b2aMatthew Xie */ 234ddf7e4756c31d0ed90802f98abeaa79df6d16b2aMatthew Xie public BluetoothGattCharacteristic(UUID uuid, int properties, int permissions) { 235ddf7e4756c31d0ed90802f98abeaa79df6d16b2aMatthew Xie initCharacteristic(null, uuid, 0, properties, permissions); 236ddf7e4756c31d0ed90802f98abeaa79df6d16b2aMatthew Xie } 237ddf7e4756c31d0ed90802f98abeaa79df6d16b2aMatthew Xie 238ddf7e4756c31d0ed90802f98abeaa79df6d16b2aMatthew Xie /** 2399908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * Create a new BluetoothGattCharacteristic 2409908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * @hide 2419908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 2429908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /*package*/ BluetoothGattCharacteristic(BluetoothGattService service, 2439908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta UUID uuid, int instanceId, 2449908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta int properties, int permissions) { 245ddf7e4756c31d0ed90802f98abeaa79df6d16b2aMatthew Xie initCharacteristic(service, uuid, instanceId, properties, permissions); 246ddf7e4756c31d0ed90802f98abeaa79df6d16b2aMatthew Xie } 247ddf7e4756c31d0ed90802f98abeaa79df6d16b2aMatthew Xie 2488d312a84d627dd50f23291fb0ed97b871ef28bb7Jakub Pawlowski /** 2498d312a84d627dd50f23291fb0ed97b871ef28bb7Jakub Pawlowski * Create a new BluetoothGattCharacteristic 2508d312a84d627dd50f23291fb0ed97b871ef28bb7Jakub Pawlowski * @hide 2518d312a84d627dd50f23291fb0ed97b871ef28bb7Jakub Pawlowski */ 2528d312a84d627dd50f23291fb0ed97b871ef28bb7Jakub Pawlowski public BluetoothGattCharacteristic(UUID uuid, int instanceId, 2538d312a84d627dd50f23291fb0ed97b871ef28bb7Jakub Pawlowski int properties, int permissions) { 2548d312a84d627dd50f23291fb0ed97b871ef28bb7Jakub Pawlowski initCharacteristic(null, uuid, instanceId, properties, permissions); 2558d312a84d627dd50f23291fb0ed97b871ef28bb7Jakub Pawlowski } 2568d312a84d627dd50f23291fb0ed97b871ef28bb7Jakub Pawlowski 257ddf7e4756c31d0ed90802f98abeaa79df6d16b2aMatthew Xie private void initCharacteristic(BluetoothGattService service, 258ddf7e4756c31d0ed90802f98abeaa79df6d16b2aMatthew Xie UUID uuid, int instanceId, 259ddf7e4756c31d0ed90802f98abeaa79df6d16b2aMatthew Xie int properties, int permissions) { 2609908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta mUuid = uuid; 2619908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta mInstance = instanceId; 2629908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta mProperties = properties; 2639908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta mPermissions = permissions; 2649908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta mService = service; 2659908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta mValue = null; 2669908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta mDescriptors = new ArrayList<BluetoothGattDescriptor>(); 2679908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 2689908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta if ((mProperties & PROPERTY_WRITE_NO_RESPONSE) != 0) { 2699908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta mWriteType = WRITE_TYPE_NO_RESPONSE; 2709908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta } else { 2719908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta mWriteType = WRITE_TYPE_DEFAULT; 2729908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta } 2739908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta } 2749908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 2759908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /** 2768d312a84d627dd50f23291fb0ed97b871ef28bb7Jakub Pawlowski * @hide 2778d312a84d627dd50f23291fb0ed97b871ef28bb7Jakub Pawlowski */ 2788d312a84d627dd50f23291fb0ed97b871ef28bb7Jakub Pawlowski public int describeContents() { 2798d312a84d627dd50f23291fb0ed97b871ef28bb7Jakub Pawlowski return 0; 2808d312a84d627dd50f23291fb0ed97b871ef28bb7Jakub Pawlowski } 2818d312a84d627dd50f23291fb0ed97b871ef28bb7Jakub Pawlowski 2828d312a84d627dd50f23291fb0ed97b871ef28bb7Jakub Pawlowski public void writeToParcel(Parcel out, int flags) { 2838d312a84d627dd50f23291fb0ed97b871ef28bb7Jakub Pawlowski out.writeParcelable(new ParcelUuid(mUuid), 0); 2848d312a84d627dd50f23291fb0ed97b871ef28bb7Jakub Pawlowski out.writeInt(mInstance); 2858d312a84d627dd50f23291fb0ed97b871ef28bb7Jakub Pawlowski out.writeInt(mProperties); 2868d312a84d627dd50f23291fb0ed97b871ef28bb7Jakub Pawlowski out.writeInt(mPermissions); 2878d312a84d627dd50f23291fb0ed97b871ef28bb7Jakub Pawlowski out.writeTypedList(mDescriptors); 2888d312a84d627dd50f23291fb0ed97b871ef28bb7Jakub Pawlowski } 2898d312a84d627dd50f23291fb0ed97b871ef28bb7Jakub Pawlowski 2908d312a84d627dd50f23291fb0ed97b871ef28bb7Jakub Pawlowski public static final Parcelable.Creator<BluetoothGattCharacteristic> CREATOR 2918d312a84d627dd50f23291fb0ed97b871ef28bb7Jakub Pawlowski = new Parcelable.Creator<BluetoothGattCharacteristic>() { 2928d312a84d627dd50f23291fb0ed97b871ef28bb7Jakub Pawlowski public BluetoothGattCharacteristic createFromParcel(Parcel in) { 2938d312a84d627dd50f23291fb0ed97b871ef28bb7Jakub Pawlowski return new BluetoothGattCharacteristic(in); 2948d312a84d627dd50f23291fb0ed97b871ef28bb7Jakub Pawlowski } 2958d312a84d627dd50f23291fb0ed97b871ef28bb7Jakub Pawlowski 2968d312a84d627dd50f23291fb0ed97b871ef28bb7Jakub Pawlowski public BluetoothGattCharacteristic[] newArray(int size) { 2978d312a84d627dd50f23291fb0ed97b871ef28bb7Jakub Pawlowski return new BluetoothGattCharacteristic[size]; 2988d312a84d627dd50f23291fb0ed97b871ef28bb7Jakub Pawlowski } 2998d312a84d627dd50f23291fb0ed97b871ef28bb7Jakub Pawlowski }; 3008d312a84d627dd50f23291fb0ed97b871ef28bb7Jakub Pawlowski 3018d312a84d627dd50f23291fb0ed97b871ef28bb7Jakub Pawlowski private BluetoothGattCharacteristic(Parcel in) { 3028d312a84d627dd50f23291fb0ed97b871ef28bb7Jakub Pawlowski mUuid = ((ParcelUuid)in.readParcelable(null)).getUuid(); 3038d312a84d627dd50f23291fb0ed97b871ef28bb7Jakub Pawlowski mInstance = in.readInt(); 3048d312a84d627dd50f23291fb0ed97b871ef28bb7Jakub Pawlowski mProperties = in.readInt(); 3058d312a84d627dd50f23291fb0ed97b871ef28bb7Jakub Pawlowski mPermissions = in.readInt(); 3068d312a84d627dd50f23291fb0ed97b871ef28bb7Jakub Pawlowski 3078d312a84d627dd50f23291fb0ed97b871ef28bb7Jakub Pawlowski mDescriptors = new ArrayList<BluetoothGattDescriptor>(); 3088d312a84d627dd50f23291fb0ed97b871ef28bb7Jakub Pawlowski 3098d312a84d627dd50f23291fb0ed97b871ef28bb7Jakub Pawlowski ArrayList<BluetoothGattDescriptor> descs = 3108d312a84d627dd50f23291fb0ed97b871ef28bb7Jakub Pawlowski in.createTypedArrayList(BluetoothGattDescriptor.CREATOR); 3118d312a84d627dd50f23291fb0ed97b871ef28bb7Jakub Pawlowski if (descs != null) { 3128d312a84d627dd50f23291fb0ed97b871ef28bb7Jakub Pawlowski for (BluetoothGattDescriptor desc: descs) { 3138d312a84d627dd50f23291fb0ed97b871ef28bb7Jakub Pawlowski desc.setCharacteristic(this); 3148d312a84d627dd50f23291fb0ed97b871ef28bb7Jakub Pawlowski mDescriptors.add(desc); 3158d312a84d627dd50f23291fb0ed97b871ef28bb7Jakub Pawlowski } 3168d312a84d627dd50f23291fb0ed97b871ef28bb7Jakub Pawlowski } 3178d312a84d627dd50f23291fb0ed97b871ef28bb7Jakub Pawlowski } 3188d312a84d627dd50f23291fb0ed97b871ef28bb7Jakub Pawlowski 3198d312a84d627dd50f23291fb0ed97b871ef28bb7Jakub Pawlowski /** 3209908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * Returns the deisred key size. 3219908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * @hide 3229908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 3239908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /*package*/ int getKeySize() { 3249908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta return mKeySize; 3259908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta } 3269908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 3279908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /** 328ddf7e4756c31d0ed90802f98abeaa79df6d16b2aMatthew Xie * Adds a descriptor to this characteristic. 329ddf7e4756c31d0ed90802f98abeaa79df6d16b2aMatthew Xie * <p>Requires {@link android.Manifest.permission#BLUETOOTH} permission. 330ddf7e4756c31d0ed90802f98abeaa79df6d16b2aMatthew Xie * 331ddf7e4756c31d0ed90802f98abeaa79df6d16b2aMatthew Xie * @param descriptor Descriptor to be added to this characteristic. 332ddf7e4756c31d0ed90802f98abeaa79df6d16b2aMatthew Xie * @return true, if the descriptor was added to the characteristic 3339908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 334ddf7e4756c31d0ed90802f98abeaa79df6d16b2aMatthew Xie public boolean addDescriptor(BluetoothGattDescriptor descriptor) { 3359908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta mDescriptors.add(descriptor); 336ddf7e4756c31d0ed90802f98abeaa79df6d16b2aMatthew Xie descriptor.setCharacteristic(this); 337ddf7e4756c31d0ed90802f98abeaa79df6d16b2aMatthew Xie return true; 3389908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta } 3399908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 3409908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /** 34125b9cf953bd3e97f726f8c27d7a752b27c9a2373Andre Eisenbach * Get a descriptor by UUID and isntance id. 34225b9cf953bd3e97f726f8c27d7a752b27c9a2373Andre Eisenbach * @hide 34325b9cf953bd3e97f726f8c27d7a752b27c9a2373Andre Eisenbach */ 34425b9cf953bd3e97f726f8c27d7a752b27c9a2373Andre Eisenbach /*package*/ BluetoothGattDescriptor getDescriptor(UUID uuid, int instanceId) { 34525b9cf953bd3e97f726f8c27d7a752b27c9a2373Andre Eisenbach for(BluetoothGattDescriptor descriptor : mDescriptors) { 34625b9cf953bd3e97f726f8c27d7a752b27c9a2373Andre Eisenbach if (descriptor.getUuid().equals(uuid) 34725b9cf953bd3e97f726f8c27d7a752b27c9a2373Andre Eisenbach && descriptor.getInstanceId() == instanceId) { 34825b9cf953bd3e97f726f8c27d7a752b27c9a2373Andre Eisenbach return descriptor; 34925b9cf953bd3e97f726f8c27d7a752b27c9a2373Andre Eisenbach } 35025b9cf953bd3e97f726f8c27d7a752b27c9a2373Andre Eisenbach } 35125b9cf953bd3e97f726f8c27d7a752b27c9a2373Andre Eisenbach return null; 35225b9cf953bd3e97f726f8c27d7a752b27c9a2373Andre Eisenbach } 35325b9cf953bd3e97f726f8c27d7a752b27c9a2373Andre Eisenbach 35425b9cf953bd3e97f726f8c27d7a752b27c9a2373Andre Eisenbach /** 3559908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * Returns the service this characteristic belongs to. 3569908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * @return The asscociated service 3579908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 3589908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta public BluetoothGattService getService() { 3599908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta return mService; 3609908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta } 3619908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 3629908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /** 363ddf7e4756c31d0ed90802f98abeaa79df6d16b2aMatthew Xie * Sets the service associated with this device. 364ddf7e4756c31d0ed90802f98abeaa79df6d16b2aMatthew Xie * @hide 365ddf7e4756c31d0ed90802f98abeaa79df6d16b2aMatthew Xie */ 366ddf7e4756c31d0ed90802f98abeaa79df6d16b2aMatthew Xie /*package*/ void setService(BluetoothGattService service) { 367ddf7e4756c31d0ed90802f98abeaa79df6d16b2aMatthew Xie mService = service; 368ddf7e4756c31d0ed90802f98abeaa79df6d16b2aMatthew Xie } 369ddf7e4756c31d0ed90802f98abeaa79df6d16b2aMatthew Xie 370ddf7e4756c31d0ed90802f98abeaa79df6d16b2aMatthew Xie /** 3719908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * Returns the UUID of this characteristic 3729908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * 3739908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * @return UUID of this characteristic 3749908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 3759908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta public UUID getUuid() { 3769908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta return mUuid; 3779908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta } 3789908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 3799908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /** 3809908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * Returns the instance ID for this characteristic. 3819908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * 3829908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * <p>If a remote device offers multiple characteristics with the same UUID, 3839908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * the instance ID is used to distuinguish between characteristics. 3849908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * 3859908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * @return Instance ID of this characteristic 3869908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 3879908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta public int getInstanceId() { 3889908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta return mInstance; 3899908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta } 3909908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 3919908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /** 3929908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * Returns the properties of this characteristic. 3939908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * 3949908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * <p>The properties contain a bit mask of property flags indicating 3959908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * the features of this characteristic. 3969908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * 3979908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * @return Properties of this characteristic 3989908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 3999908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta public int getProperties() { 4009908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta return mProperties; 4019908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta } 4029908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 4039908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /** 4049908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * Returns the permissions for this characteristic. 4059908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * 4069908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * @return Permissions of this characteristic 4079908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 4089908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta public int getPermissions() { 4099908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta return mPermissions; 4109908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta } 4119908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 4129908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /** 4139908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * Gets the write type for this characteristic. 4149908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * 4159908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * @return Write type for this characteristic 4169908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 4179908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta public int getWriteType() { 4189908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta return mWriteType; 4199908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta } 4209908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 4219908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /** 4229908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * Set the write type for this characteristic 4239908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * 4249908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * <p>Setting the write type of a characteristic determines how the 4259908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * {@link BluetoothGatt#writeCharacteristic} function write this 4269908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * characteristic. 4279908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * 4289908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * @param writeType The write type to for this characteristic. Can be one 4299908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * of: 4309908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * {@link #WRITE_TYPE_DEFAULT}, 4319908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * {@link #WRITE_TYPE_NO_RESPONSE} or 4329908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * {@link #WRITE_TYPE_SIGNED}. 4339908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 4349908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta public void setWriteType(int writeType) { 4359908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta mWriteType = writeType; 4369908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta } 4379908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 4389908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /** 439ddf7e4756c31d0ed90802f98abeaa79df6d16b2aMatthew Xie * Set the desired key size. 440ddf7e4756c31d0ed90802f98abeaa79df6d16b2aMatthew Xie * @hide 441ddf7e4756c31d0ed90802f98abeaa79df6d16b2aMatthew Xie */ 442ddf7e4756c31d0ed90802f98abeaa79df6d16b2aMatthew Xie public void setKeySize(int keySize) { 443ddf7e4756c31d0ed90802f98abeaa79df6d16b2aMatthew Xie mKeySize = keySize; 444ddf7e4756c31d0ed90802f98abeaa79df6d16b2aMatthew Xie } 445ddf7e4756c31d0ed90802f98abeaa79df6d16b2aMatthew Xie 446ddf7e4756c31d0ed90802f98abeaa79df6d16b2aMatthew Xie /** 4479908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * Returns a list of descriptors for this characteristic. 4489908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * 4499908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * @return Descriptors for this characteristic 4509908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 4519908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta public List<BluetoothGattDescriptor> getDescriptors() { 4529908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta return mDescriptors; 4539908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta } 4549908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 4559908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /** 4569908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * Returns a descriptor with a given UUID out of the list of 4579908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * descriptors for this characteristic. 4589908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * 459ddf7e4756c31d0ed90802f98abeaa79df6d16b2aMatthew Xie * @return GATT descriptor object or null if no descriptor with the 4609908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * given UUID was found. 4619908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 4629908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta public BluetoothGattDescriptor getDescriptor(UUID uuid) { 4639908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta for(BluetoothGattDescriptor descriptor : mDescriptors) { 4649908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta if (descriptor.getUuid().equals(uuid)) { 4659908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta return descriptor; 4669908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta } 4679908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta } 4689908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta return null; 4699908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta } 4709908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 4719908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /** 4729908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * Get the stored value for this characteristic. 4739908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * 4749908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * <p>This function returns the stored value for this characteristic as 475ddf7e4756c31d0ed90802f98abeaa79df6d16b2aMatthew Xie * retrieved by calling {@link BluetoothGatt#readCharacteristic}. The cached 4769908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * value of the characteristic is updated as a result of a read characteristic 4779908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * operation or if a characteristic update notification has been received. 4789908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * 4799908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * @return Cached value of the characteristic 4809908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 4819908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta public byte[] getValue() { 4829908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta return mValue; 4839908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta } 4849908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 4859908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /** 4869908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * Return the stored value of this characteristic. 4879908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * 4889908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * <p>The formatType parameter determines how the characteristic value 4899908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * is to be interpreted. For example, settting formatType to 4909908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * {@link #FORMAT_UINT16} specifies that the first two bytes of the 4919908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * characteristic value at the given offset are interpreted to generate the 4929908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * return value. 4939908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * 4949908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * @param formatType The format type used to interpret the characteristic 4959908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * value. 4969908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * @param offset Offset at which the integer value can be found. 4979908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * @return Cached value of the characteristic or null of offset exceeds 4989908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * value size. 4999908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 5009908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta public Integer getIntValue(int formatType, int offset) { 5019908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta if ((offset + getTypeLen(formatType)) > mValue.length) return null; 5029908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 5039908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta switch (formatType) { 5049908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta case FORMAT_UINT8: 5059908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta return unsignedByteToInt(mValue[offset]); 5069908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 5079908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta case FORMAT_UINT16: 5089908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta return unsignedBytesToInt(mValue[offset], mValue[offset+1]); 5099908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 5109908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta case FORMAT_UINT32: 5119908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta return unsignedBytesToInt(mValue[offset], mValue[offset+1], 5129908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta mValue[offset+2], mValue[offset+3]); 5139908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta case FORMAT_SINT8: 5149908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta return unsignedToSigned(unsignedByteToInt(mValue[offset]), 8); 5159908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 5169908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta case FORMAT_SINT16: 5179908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta return unsignedToSigned(unsignedBytesToInt(mValue[offset], 5189908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta mValue[offset+1]), 16); 5199908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 5209908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta case FORMAT_SINT32: 5219908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta return unsignedToSigned(unsignedBytesToInt(mValue[offset], 5229908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta mValue[offset+1], mValue[offset+2], mValue[offset+3]), 32); 5239908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta } 5249908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 5259908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta return null; 5269908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta } 5279908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 5289908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /** 5299908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * Return the stored value of this characteristic. 5309908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * <p>See {@link #getValue} for details. 5319908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * 5329908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * @param formatType The format type used to interpret the characteristic 5339908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * value. 5349908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * @param offset Offset at which the float value can be found. 5359908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * @return Cached value of the characteristic at a given offset or null 5369908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * if the requested offset exceeds the value size. 5379908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 5389908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta public Float getFloatValue(int formatType, int offset) { 5399908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta if ((offset + getTypeLen(formatType)) > mValue.length) return null; 5409908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 5419908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta switch (formatType) { 5429908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta case FORMAT_SFLOAT: 5439908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta return bytesToFloat(mValue[offset], mValue[offset+1]); 5449908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 5459908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta case FORMAT_FLOAT: 5469908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta return bytesToFloat(mValue[offset], mValue[offset+1], 5479908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta mValue[offset+2], mValue[offset+3]); 5489908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta } 5499908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 5509908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta return null; 5519908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta } 5529908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 5539908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /** 5549908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * Return the stored value of this characteristic. 5559908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * <p>See {@link #getValue} for details. 556ddf7e4756c31d0ed90802f98abeaa79df6d16b2aMatthew Xie * 5579908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * @param offset Offset at which the string value can be found. 5589908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * @return Cached value of the characteristic 5599908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 5609908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta public String getStringValue(int offset) { 5610fd06a19bdc56fec8eb736d248abb56fe5a2727dAndre Eisenbach if (mValue == null || offset > mValue.length) return null; 5629908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta byte[] strBytes = new byte[mValue.length - offset]; 5639908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta for (int i=0; i != (mValue.length-offset); ++i) strBytes[i] = mValue[offset+i]; 5649908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta return new String(strBytes); 5659908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta } 5669908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 5679908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /** 5689908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * Updates the locally stored value of this characteristic. 5699908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * 5709908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * <p>This function modifies the locally stored cached value of this 5719908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * characteristic. To send the value to the remote device, call 5729908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * {@link BluetoothGatt#writeCharacteristic} to send the value to the 5739908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * remote device. 5749908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * 5759908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * @param value New value for this characteristic 5769908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * @return true if the locally stored value has been set, false if the 5779908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * requested value could not be stored locally. 5789908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 5799908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta public boolean setValue(byte[] value) { 5809908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta mValue = value; 5819908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta return true; 5829908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta } 5839908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 5849908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /** 5859908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * Set the locally stored value of this characteristic. 5869908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * <p>See {@link #setValue(byte[])} for details. 5879908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * 5889908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * @param value New value for this characteristic 5899908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * @param formatType Integer format type used to transform the value parameter 5909908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * @param offset Offset at which the value should be placed 5919908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * @return true if the locally stored value has been set 5929908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 5939908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta public boolean setValue(int value, int formatType, int offset) { 5949908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta int len = offset + getTypeLen(formatType); 5959908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta if (mValue == null) mValue = new byte[len]; 5969908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta if (len > mValue.length) return false; 5979908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 5989908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta switch (formatType) { 5999908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta case FORMAT_SINT8: 6009908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta value = intToSignedBits(value, 8); 6019908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta // Fall-through intended 6029908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta case FORMAT_UINT8: 6039908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta mValue[offset] = (byte)(value & 0xFF); 6049908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta break; 6059908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 6069908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta case FORMAT_SINT16: 6079908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta value = intToSignedBits(value, 16); 6089908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta // Fall-through intended 6099908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta case FORMAT_UINT16: 6109908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta mValue[offset++] = (byte)(value & 0xFF); 6119908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta mValue[offset] = (byte)((value >> 8) & 0xFF); 6129908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta break; 6139908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 6149908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta case FORMAT_SINT32: 6159908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta value = intToSignedBits(value, 32); 6169908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta // Fall-through intended 6179908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta case FORMAT_UINT32: 6189908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta mValue[offset++] = (byte)(value & 0xFF); 6199908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta mValue[offset++] = (byte)((value >> 8) & 0xFF); 6203f36660a60ce065b71f6d5eb24911012b6d66fddAndre Eisenbach mValue[offset++] = (byte)((value >> 16) & 0xFF); 6213f36660a60ce065b71f6d5eb24911012b6d66fddAndre Eisenbach mValue[offset] = (byte)((value >> 24) & 0xFF); 6229908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta break; 6239908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 6249908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta default: 6259908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta return false; 6269908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta } 6279908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta return true; 6289908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta } 6299908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 6309908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /** 6319908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * Set the locally stored value of this characteristic. 6329908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * <p>See {@link #setValue(byte[])} for details. 633ddf7e4756c31d0ed90802f98abeaa79df6d16b2aMatthew Xie * 6349908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * @param mantissa Mantissa for this characteristic 6359908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * @param exponent exponent value for this characteristic 6369908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * @param formatType Float format type used to transform the value parameter 6379908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * @param offset Offset at which the value should be placed 6389908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * @return true if the locally stored value has been set 6399908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 6409908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta public boolean setValue(int mantissa, int exponent, int formatType, int offset) { 6419908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta int len = offset + getTypeLen(formatType); 6429908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta if (mValue == null) mValue = new byte[len]; 6439908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta if (len > mValue.length) return false; 6449908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 6459908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta switch (formatType) { 6469908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta case FORMAT_SFLOAT: 6479908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta mantissa = intToSignedBits(mantissa, 12); 6489908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta exponent = intToSignedBits(exponent, 4); 6499908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta mValue[offset++] = (byte)(mantissa & 0xFF); 6509908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta mValue[offset] = (byte)((mantissa >> 8) & 0x0F); 6519908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta mValue[offset] += (byte)((exponent & 0x0F) << 4); 6529908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta break; 6539908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 6549908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta case FORMAT_FLOAT: 6559908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta mantissa = intToSignedBits(mantissa, 24); 6569908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta exponent = intToSignedBits(exponent, 8); 6579908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta mValue[offset++] = (byte)(mantissa & 0xFF); 6589908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta mValue[offset++] = (byte)((mantissa >> 8) & 0xFF); 6599908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta mValue[offset++] = (byte)((mantissa >> 16) & 0xFF); 6609908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta mValue[offset] += (byte)(exponent & 0xFF); 6619908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta break; 6629908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 6639908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta default: 6649908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta return false; 6659908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta } 6669908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 6679908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta return true; 6689908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta } 6699908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 6709908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /** 6719908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * Set the locally stored value of this characteristic. 6729908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * <p>See {@link #setValue(byte[])} for details. 673ddf7e4756c31d0ed90802f98abeaa79df6d16b2aMatthew Xie * 6749908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * @param value New value for this characteristic 6759908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * @return true if the locally stored value has been set 6769908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 6779908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta public boolean setValue(String value) { 6789908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta mValue = value.getBytes(); 6799908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta return true; 6809908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta } 6819908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 6829908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /** 6839908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * Returns the size of a give value type. 6849908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 6859908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta private int getTypeLen(int formatType) { 6869908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta return formatType & 0xF; 6879908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta } 6889908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 6899908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /** 6909908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * Convert a signed byte to an unsigned int. 6919908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 6929908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta private int unsignedByteToInt(byte b) { 6939908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta return b & 0xFF; 6949908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta } 6959908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 6969908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /** 6979908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * Convert signed bytes to a 16-bit unsigned int. 6989908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 6999908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta private int unsignedBytesToInt(byte b0, byte b1) { 7009908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta return (unsignedByteToInt(b0) + (unsignedByteToInt(b1) << 8)); 7019908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta } 7029908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 7039908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /** 7049908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * Convert signed bytes to a 32-bit unsigned int. 7059908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 7069908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta private int unsignedBytesToInt(byte b0, byte b1, byte b2, byte b3) { 7079908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta return (unsignedByteToInt(b0) + (unsignedByteToInt(b1) << 8)) 7089908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta + (unsignedByteToInt(b2) << 16) + (unsignedByteToInt(b3) << 24); 7099908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta } 7109908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 7119908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /** 7129908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * Convert signed bytes to a 16-bit short float value. 7139908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 7149908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta private float bytesToFloat(byte b0, byte b1) { 7159908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta int mantissa = unsignedToSigned(unsignedByteToInt(b0) 7169908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta + ((unsignedByteToInt(b1) & 0x0F) << 8), 12); 7179908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta int exponent = unsignedToSigned(unsignedByteToInt(b1) >> 4, 4); 7189908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta return (float)(mantissa * Math.pow(10, exponent)); 7199908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta } 7209908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 7219908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /** 7229908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * Convert signed bytes to a 32-bit short float value. 7239908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 7249908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta private float bytesToFloat(byte b0, byte b1, byte b2, byte b3) { 7259908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta int mantissa = unsignedToSigned(unsignedByteToInt(b0) 7269908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta + (unsignedByteToInt(b1) << 8) 7279908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta + (unsignedByteToInt(b2) << 16), 24); 7289908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta return (float)(mantissa * Math.pow(10, b3)); 7299908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta } 7309908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 7319908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /** 7329908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * Convert an unsigned integer value to a two's-complement encoded 7339908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * signed value. 7349908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 7359908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta private int unsignedToSigned(int unsigned, int size) { 7369908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta if ((unsigned & (1 << size-1)) != 0) { 7379908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta unsigned = -1 * ((1 << size-1) - (unsigned & ((1 << size-1) - 1))); 7389908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta } 7399908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta return unsigned; 7409908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta } 7419908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta 7429908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta /** 7439908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta * Convert an integer into the signed bits of a given length. 7449908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta */ 7459908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta private int intToSignedBits(int i, int size) { 7469908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta if (i < 0) { 7479908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta i = (1 << size-1) + (i & ((1 << size-1) - 1)); 7489908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta } 7499908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta return i; 7509908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta } 7519908112fd085d8b0d91e0562d32eebd1884f09a5Ganesh Ganapathi Batta} 752