Wang Xinglu / BLE_API

High level Bluetooth Low Energy API and radio abstraction layer

Dependencies:   nRF51822

Dependents:   LinkNode_LIS3DH

Fork of BLE_API by Bluetooth Low Energy

services/BatteryService.h@710:b2e1a2660ec2, 2015-06-19 (annotated)

Committer:
rgrover1
Date:
Fri Jun 19 15:53:28 2015 +0100
Revision:
710:b2e1a2660ec2
Parent:
671:33ec93d25695 
Synchronized with git rev 7e8977d8

Author: Rohit Grover

Release 0.3.8

=============



This is a minor set of enhancements before we yotta-ize BLE_API.



Enhancements

~~~~~~~~~~~~



* Minor rework for class UUID; added a default and copy constructor; and a != operator.



* Added copy constructor and accessors for GapAdvertisingParams.



* GapScanningParams:: remove unnecessary checks for SCAN_TIMEOUT_MAX.



* Add a comment header block to explain why BLEDevice::init() may not be safe

  to call from global static context.



* Introduce GattAttribute::INVALID_HANDLE.



* Replace some deprecated uses of Gap::address_t with Gap::Address_t.



Bugfixes

~~~~~~~~



* None.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Rohit Grover 118:620d28e7a1ba 1 /* mbed Microcontroller Library
Rohit Grover 118:620d28e7a1ba 2 * Copyright (c) 2006-2013 ARM Limited
Rohit Grover 118:620d28e7a1ba 3 *
Rohit Grover 118:620d28e7a1ba 4 * Licensed under the Apache License, Version 2.0 (the "License");
Rohit Grover 118:620d28e7a1ba 5 * you may not use this file except in compliance with the License.
Rohit Grover 118:620d28e7a1ba 6 * You may obtain a copy of the License at
Rohit Grover 118:620d28e7a1ba 7 *
Rohit Grover 118:620d28e7a1ba 8 * http://www.apache.org/licenses/LICENSE-2.0
Rohit Grover 118:620d28e7a1ba 9 *
Rohit Grover 118:620d28e7a1ba 10 * Unless required by applicable law or agreed to in writing, software
Rohit Grover 118:620d28e7a1ba 11 * distributed under the License is distributed on an "AS IS" BASIS,
Rohit Grover 118:620d28e7a1ba 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
Rohit Grover 118:620d28e7a1ba 13 * See the License for the specific language governing permissions and
Rohit Grover 118:620d28e7a1ba 14 * limitations under the License.
Rohit Grover 118:620d28e7a1ba 15 */
Rohit Grover 118:620d28e7a1ba 16
Rohit Grover 118:620d28e7a1ba 17 #ifndef __BLE_BATTERY_SERVICE_H__
Rohit Grover 118:620d28e7a1ba 18 #define __BLE_BATTERY_SERVICE_H__
Rohit Grover 118:620d28e7a1ba 19
rgrover1 710:b2e1a2660ec2 20 #include "BLEDevice.h"
Rohit Grover 118:620d28e7a1ba 21
rgrover1 242:0e9201b67e2f 22 /**
mbedAustin 238:905d6fc17fda 23 * @class BatteryService
rgrover1 242:0e9201b67e2f 24 * @brief BLE Battery Service. This service displays the battery level from 0%->100% represented as a 8bit number.<br>
mbedAustin 238:905d6fc17fda 25 * Service: https://developer.bluetooth.org/gatt/services/Pages/ServiceViewer.aspx?u=org.bluetooth.service.battery_service.xml <br>
rgrover1 242:0e9201b67e2f 26 * Battery Level Char: https://developer.bluetooth.org/gatt/characteristics/Pages/CharacteristicViewer.aspx?u=org.bluetooth.characteristic.battery_level.xml
mbedAustin 238:905d6fc17fda 27 */
Rohit Grover 118:620d28e7a1ba 28 class BatteryService {
Rohit Grover 118:620d28e7a1ba 29 public:
mbedAustin 238:905d6fc17fda 30 /**
mbedAustin 238:905d6fc17fda 31 * @param[ref] _ble
rgrover1 710:b2e1a2660ec2 32 * BLEDevice object for the underlying controller.
mbedAustin 238:905d6fc17fda 33 * @param[in] level
rgrover1 242:0e9201b67e2f 34 * 8bit batterly level. Usually used to represent percentage of batterly charge remaining.
mbedAustin 238:905d6fc17fda 35 */
rgrover1 710:b2e1a2660ec2 36 BatteryService(BLEDevice &_ble, uint8_t level = 100) :
Rohit Grover 118:620d28e7a1ba 37 ble(_ble),
Rohit Grover 118:620d28e7a1ba 38 batteryLevel(level),
rgrover1 277:1407d2f1ce3c 39 batteryLevelCharacteristic(GattCharacteristic::UUID_BATTERY_LEVEL_CHAR, &batteryLevel, GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_NOTIFY) {
Rohit Grover 118:620d28e7a1ba 40
rgrover1 710:b2e1a2660ec2 41 static bool serviceAdded = false; /* We should only ever need to add the heart rate service once. */
rgrover1 710:b2e1a2660ec2 42 if (serviceAdded) {
rgrover1 710:b2e1a2660ec2 43 return;
rgrover1 710:b2e1a2660ec2 44 }
rgrover1 710:b2e1a2660ec2 45
Rohit Grover 118:620d28e7a1ba 46 GattCharacteristic *charTable[] = {&batteryLevelCharacteristic};
Rohit Grover 118:620d28e7a1ba 47 GattService batteryService(GattService::UUID_BATTERY_SERVICE, charTable, sizeof(charTable) / sizeof(GattCharacteristic *));
Rohit Grover 118:620d28e7a1ba 48
Rohit Grover 118:620d28e7a1ba 49 ble.addService(batteryService);
rgrover1 710:b2e1a2660ec2 50 serviceAdded = true;
Rohit Grover 118:620d28e7a1ba 51 }
Rohit Grover 118:620d28e7a1ba 52
Rohit Grover 118:620d28e7a1ba 53 /**
rgrover1 242:0e9201b67e2f 54 * @brief Update the battery level with a new value. Valid values range from
Rohit Grover 118:620d28e7a1ba 55 * 0..100. Anything outside this range will be ignored.
rgrover1 242:0e9201b67e2f 56 *
rgrover1 242:0e9201b67e2f 57 * @param newLevel
mbedAustin 238:905d6fc17fda 58 * update to battery level.
Rohit Grover 118:620d28e7a1ba 59 */
Rohit Grover 118:620d28e7a1ba 60 void updateBatteryLevel(uint8_t newLevel) {
Rohit Grover 118:620d28e7a1ba 61 batteryLevel = newLevel;
Rohit Grover 118:620d28e7a1ba 62 ble.updateCharacteristicValue(batteryLevelCharacteristic.getValueAttribute().getHandle(), &batteryLevel, 1);
Rohit Grover 118:620d28e7a1ba 63 }
Rohit Grover 118:620d28e7a1ba 64
rgrover1 710:b2e1a2660ec2 65 private:
rgrover1 710:b2e1a2660ec2 66 BLEDevice &ble;
rgrover1 277:1407d2f1ce3c 67
rgrover1 277:1407d2f1ce3c 68 uint8_t batteryLevel;
rgrover1 277:1407d2f1ce3c 69 ReadOnlyGattCharacteristic<uint8_t> batteryLevelCharacteristic;
Rohit Grover 118:620d28e7a1ba 70 };
Rohit Grover 118:620d28e7a1ba 71
rgrover1 242:0e9201b67e2f 72 #endif /* #ifndef __BLE_BATTERY_SERVICE_H__*/