João Adriano Freitas / microbit-dal

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Dependencies:   BLE_API mbed-dev-bin nRF51822

Dependents:   microbit

Fork of microbit-dal by Lancaster University

source/bluetooth/MicroBitButtonService.cpp@1:8aa5cdb4ab67, 2016-04-07 (annotated)

Committer:
Jonathan Austin
Date:
Thu Apr 07 01:33:22 2016 +0100
Revision:
1:8aa5cdb4ab67
Child:
32:ece16b5987dd
Synchronized with git rev 55cb9199

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Jonathan Austin 1:8aa5cdb4ab67 1 /*
Jonathan Austin 1:8aa5cdb4ab67 2 The MIT License (MIT)
Jonathan Austin 1:8aa5cdb4ab67 3
Jonathan Austin 1:8aa5cdb4ab67 4 Copyright (c) 2016 British Broadcasting Corporation.
Jonathan Austin 1:8aa5cdb4ab67 5 This software is provided by Lancaster University by arrangement with the BBC.
Jonathan Austin 1:8aa5cdb4ab67 6
Jonathan Austin 1:8aa5cdb4ab67 7 Permission is hereby granted, free of charge, to any person obtaining a
Jonathan Austin 1:8aa5cdb4ab67 8 copy of this software and associated documentation files (the "Software"),
Jonathan Austin 1:8aa5cdb4ab67 9 to deal in the Software without restriction, including without limitation
Jonathan Austin 1:8aa5cdb4ab67 10 the rights to use, copy, modify, merge, publish, distribute, sublicense,
Jonathan Austin 1:8aa5cdb4ab67 11 and/or sell copies of the Software, and to permit persons to whom the
Jonathan Austin 1:8aa5cdb4ab67 12 Software is furnished to do so, subject to the following conditions:
Jonathan Austin 1:8aa5cdb4ab67 13
Jonathan Austin 1:8aa5cdb4ab67 14 The above copyright notice and this permission notice shall be included in
Jonathan Austin 1:8aa5cdb4ab67 15 all copies or substantial portions of the Software.
Jonathan Austin 1:8aa5cdb4ab67 16
Jonathan Austin 1:8aa5cdb4ab67 17 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
Jonathan Austin 1:8aa5cdb4ab67 18 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
Jonathan Austin 1:8aa5cdb4ab67 19 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
Jonathan Austin 1:8aa5cdb4ab67 20 THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
Jonathan Austin 1:8aa5cdb4ab67 21 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
Jonathan Austin 1:8aa5cdb4ab67 22 FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
Jonathan Austin 1:8aa5cdb4ab67 23 DEALINGS IN THE SOFTWARE.
Jonathan Austin 1:8aa5cdb4ab67 24 */
Jonathan Austin 1:8aa5cdb4ab67 25
Jonathan Austin 1:8aa5cdb4ab67 26 /**
Jonathan Austin 1:8aa5cdb4ab67 27 * Class definition for the custom MicroBit Button Service.
Jonathan Austin 1:8aa5cdb4ab67 28 * Provides a BLE service to remotely read the state of each button, and configure its behaviour.
Jonathan Austin 1:8aa5cdb4ab67 29 */
Jonathan Austin 1:8aa5cdb4ab67 30 #include "MicroBitConfig.h"
Jonathan Austin 1:8aa5cdb4ab67 31 #include "ble/UUID.h"
Jonathan Austin 1:8aa5cdb4ab67 32
Jonathan Austin 1:8aa5cdb4ab67 33 #include "MicroBitButtonService.h"
Jonathan Austin 1:8aa5cdb4ab67 34 #include "MicroBitButton.h"
Jonathan Austin 1:8aa5cdb4ab67 35
Jonathan Austin 1:8aa5cdb4ab67 36 /**
Jonathan Austin 1:8aa5cdb4ab67 37 * Constructor.
Jonathan Austin 1:8aa5cdb4ab67 38 * Create a representation of the ButtonService
Jonathan Austin 1:8aa5cdb4ab67 39 * @param _ble The instance of a BLE device that we're running on.
Jonathan Austin 1:8aa5cdb4ab67 40 */
Jonathan Austin 1:8aa5cdb4ab67 41 MicroBitButtonService::MicroBitButtonService(BLEDevice &_ble) :
Jonathan Austin 1:8aa5cdb4ab67 42 ble(_ble)
Jonathan Austin 1:8aa5cdb4ab67 43 {
Jonathan Austin 1:8aa5cdb4ab67 44 // Create the data structures that represent each of our characteristics in Soft Device.
Jonathan Austin 1:8aa5cdb4ab67 45 GattCharacteristic buttonADataCharacteristic(MicroBitButtonAServiceDataUUID, (uint8_t *)&buttonADataCharacteristicBuffer, 0,
Jonathan Austin 1:8aa5cdb4ab67 46 sizeof(buttonADataCharacteristicBuffer), GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_READ | GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_NOTIFY);
Jonathan Austin 1:8aa5cdb4ab67 47
Jonathan Austin 1:8aa5cdb4ab67 48 GattCharacteristic buttonBDataCharacteristic(MicroBitButtonBServiceDataUUID, (uint8_t *)&buttonADataCharacteristicBuffer, 0,
Jonathan Austin 1:8aa5cdb4ab67 49 sizeof(buttonADataCharacteristicBuffer), GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_READ | GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_NOTIFY);
Jonathan Austin 1:8aa5cdb4ab67 50
Jonathan Austin 1:8aa5cdb4ab67 51
Jonathan Austin 1:8aa5cdb4ab67 52 // Initialise our characteristic values.
Jonathan Austin 1:8aa5cdb4ab67 53 buttonADataCharacteristicBuffer = 0;
Jonathan Austin 1:8aa5cdb4ab67 54 buttonBDataCharacteristicBuffer = 0;
Jonathan Austin 1:8aa5cdb4ab67 55
Jonathan Austin 1:8aa5cdb4ab67 56 // Set default security requirements
Jonathan Austin 1:8aa5cdb4ab67 57 buttonADataCharacteristic.requireSecurity(SecurityManager::MICROBIT_BLE_SECURITY_LEVEL);
Jonathan Austin 1:8aa5cdb4ab67 58 buttonBDataCharacteristic.requireSecurity(SecurityManager::MICROBIT_BLE_SECURITY_LEVEL);
Jonathan Austin 1:8aa5cdb4ab67 59
Jonathan Austin 1:8aa5cdb4ab67 60 GattCharacteristic *characteristics[] = {&buttonADataCharacteristic, &buttonBDataCharacteristic};
Jonathan Austin 1:8aa5cdb4ab67 61 GattService service(MicroBitButtonServiceUUID, characteristics, sizeof(characteristics) / sizeof(GattCharacteristic *));
Jonathan Austin 1:8aa5cdb4ab67 62
Jonathan Austin 1:8aa5cdb4ab67 63 ble.addService(service);
Jonathan Austin 1:8aa5cdb4ab67 64
Jonathan Austin 1:8aa5cdb4ab67 65 buttonADataCharacteristicHandle = buttonADataCharacteristic.getValueHandle();
Jonathan Austin 1:8aa5cdb4ab67 66 buttonBDataCharacteristicHandle = buttonBDataCharacteristic.getValueHandle();
Jonathan Austin 1:8aa5cdb4ab67 67
Jonathan Austin 1:8aa5cdb4ab67 68 ble.gattServer().write(buttonADataCharacteristicHandle,(uint8_t *)&buttonADataCharacteristicBuffer, sizeof(buttonADataCharacteristicBuffer));
Jonathan Austin 1:8aa5cdb4ab67 69 ble.gattServer().write(buttonBDataCharacteristicHandle,(uint8_t *)&buttonBDataCharacteristicBuffer, sizeof(buttonBDataCharacteristicBuffer));
Jonathan Austin 1:8aa5cdb4ab67 70
Jonathan Austin 1:8aa5cdb4ab67 71 if (EventModel::defaultEventBus)
Jonathan Austin 1:8aa5cdb4ab67 72 {
Jonathan Austin 1:8aa5cdb4ab67 73 EventModel::defaultEventBus->listen(MICROBIT_ID_BUTTON_A, MICROBIT_EVT_ANY, this, &MicroBitButtonService::buttonAUpdate, MESSAGE_BUS_LISTENER_IMMEDIATE);
Jonathan Austin 1:8aa5cdb4ab67 74 EventModel::defaultEventBus->listen(MICROBIT_ID_BUTTON_B, MICROBIT_EVT_ANY, this, &MicroBitButtonService::buttonBUpdate, MESSAGE_BUS_LISTENER_IMMEDIATE);
Jonathan Austin 1:8aa5cdb4ab67 75 }
Jonathan Austin 1:8aa5cdb4ab67 76 }
Jonathan Austin 1:8aa5cdb4ab67 77
Jonathan Austin 1:8aa5cdb4ab67 78
Jonathan Austin 1:8aa5cdb4ab67 79 /**
Jonathan Austin 1:8aa5cdb4ab67 80 * Button B update callback
Jonathan Austin 1:8aa5cdb4ab67 81 */
Jonathan Austin 1:8aa5cdb4ab67 82 void MicroBitButtonService::buttonAUpdate(MicroBitEvent e)
Jonathan Austin 1:8aa5cdb4ab67 83 {
Jonathan Austin 1:8aa5cdb4ab67 84 if (ble.getGapState().connected)
Jonathan Austin 1:8aa5cdb4ab67 85 {
Jonathan Austin 1:8aa5cdb4ab67 86 if (e.value == MICROBIT_BUTTON_EVT_UP)
Jonathan Austin 1:8aa5cdb4ab67 87 {
Jonathan Austin 1:8aa5cdb4ab67 88 buttonADataCharacteristicBuffer = 0;
Jonathan Austin 1:8aa5cdb4ab67 89 ble.gattServer().notify(buttonADataCharacteristicHandle,(uint8_t *)&buttonADataCharacteristicBuffer, sizeof(buttonADataCharacteristicBuffer));
Jonathan Austin 1:8aa5cdb4ab67 90 }
Jonathan Austin 1:8aa5cdb4ab67 91
Jonathan Austin 1:8aa5cdb4ab67 92 if (e.value == MICROBIT_BUTTON_EVT_DOWN)
Jonathan Austin 1:8aa5cdb4ab67 93 {
Jonathan Austin 1:8aa5cdb4ab67 94 buttonADataCharacteristicBuffer = 1;
Jonathan Austin 1:8aa5cdb4ab67 95 ble.gattServer().notify(buttonADataCharacteristicHandle,(uint8_t *)&buttonADataCharacteristicBuffer, sizeof(buttonADataCharacteristicBuffer));
Jonathan Austin 1:8aa5cdb4ab67 96 }
Jonathan Austin 1:8aa5cdb4ab67 97
Jonathan Austin 1:8aa5cdb4ab67 98 if (e.value == MICROBIT_BUTTON_EVT_HOLD)
Jonathan Austin 1:8aa5cdb4ab67 99 {
Jonathan Austin 1:8aa5cdb4ab67 100 buttonADataCharacteristicBuffer = 2;
Jonathan Austin 1:8aa5cdb4ab67 101 ble.gattServer().notify(buttonADataCharacteristicHandle,(uint8_t *)&buttonADataCharacteristicBuffer, sizeof(buttonADataCharacteristicBuffer));
Jonathan Austin 1:8aa5cdb4ab67 102 }
Jonathan Austin 1:8aa5cdb4ab67 103 }
Jonathan Austin 1:8aa5cdb4ab67 104 }
Jonathan Austin 1:8aa5cdb4ab67 105
Jonathan Austin 1:8aa5cdb4ab67 106 /**
Jonathan Austin 1:8aa5cdb4ab67 107 * Button A update callback
Jonathan Austin 1:8aa5cdb4ab67 108 */
Jonathan Austin 1:8aa5cdb4ab67 109 void MicroBitButtonService::buttonBUpdate(MicroBitEvent e)
Jonathan Austin 1:8aa5cdb4ab67 110 {
Jonathan Austin 1:8aa5cdb4ab67 111 if (ble.getGapState().connected)
Jonathan Austin 1:8aa5cdb4ab67 112 {
Jonathan Austin 1:8aa5cdb4ab67 113 if (e.value == MICROBIT_BUTTON_EVT_UP)
Jonathan Austin 1:8aa5cdb4ab67 114 {
Jonathan Austin 1:8aa5cdb4ab67 115 buttonBDataCharacteristicBuffer = 0;
Jonathan Austin 1:8aa5cdb4ab67 116 ble.gattServer().notify(buttonBDataCharacteristicHandle,(uint8_t *)&buttonBDataCharacteristicBuffer, sizeof(buttonBDataCharacteristicBuffer));
Jonathan Austin 1:8aa5cdb4ab67 117 }
Jonathan Austin 1:8aa5cdb4ab67 118
Jonathan Austin 1:8aa5cdb4ab67 119 if (e.value == MICROBIT_BUTTON_EVT_DOWN)
Jonathan Austin 1:8aa5cdb4ab67 120 {
Jonathan Austin 1:8aa5cdb4ab67 121 buttonBDataCharacteristicBuffer = 1;
Jonathan Austin 1:8aa5cdb4ab67 122 ble.gattServer().notify(buttonBDataCharacteristicHandle,(uint8_t *)&buttonBDataCharacteristicBuffer, sizeof(buttonBDataCharacteristicBuffer));
Jonathan Austin 1:8aa5cdb4ab67 123 }
Jonathan Austin 1:8aa5cdb4ab67 124
Jonathan Austin 1:8aa5cdb4ab67 125 if (e.value == MICROBIT_BUTTON_EVT_HOLD)
Jonathan Austin 1:8aa5cdb4ab67 126 {
Jonathan Austin 1:8aa5cdb4ab67 127 buttonBDataCharacteristicBuffer = 2;
Jonathan Austin 1:8aa5cdb4ab67 128 ble.gattServer().notify(buttonBDataCharacteristicHandle,(uint8_t *)&buttonBDataCharacteristicBuffer, sizeof(buttonBDataCharacteristicBuffer));
Jonathan Austin 1:8aa5cdb4ab67 129 }
Jonathan Austin 1:8aa5cdb4ab67 130 }
Jonathan Austin 1:8aa5cdb4ab67 131 }
Jonathan Austin 1:8aa5cdb4ab67 132
Jonathan Austin 1:8aa5cdb4ab67 133 const uint8_t MicroBitButtonServiceUUID[] = {
Jonathan Austin 1:8aa5cdb4ab67 134 0xe9,0x5d,0x98,0x82,0x25,0x1d,0x47,0x0a,0xa0,0x62,0xfa,0x19,0x22,0xdf,0xa9,0xa8
Jonathan Austin 1:8aa5cdb4ab67 135 };
Jonathan Austin 1:8aa5cdb4ab67 136
Jonathan Austin 1:8aa5cdb4ab67 137 const uint8_t MicroBitButtonAServiceDataUUID[] = {
Jonathan Austin 1:8aa5cdb4ab67 138 0xe9,0x5d,0xda,0x90,0x25,0x1d,0x47,0x0a,0xa0,0x62,0xfa,0x19,0x22,0xdf,0xa9,0xa8
Jonathan Austin 1:8aa5cdb4ab67 139 }
Jonathan Austin 1:8aa5cdb4ab67 140 ;
Jonathan Austin 1:8aa5cdb4ab67 141 const uint8_t MicroBitButtonBServiceDataUUID[] = {
Jonathan Austin 1:8aa5cdb4ab67 142 0xe9,0x5d,0xda,0x91,0x25,0x1d,0x47,0x0a,0xa0,0x62,0xfa,0x19,0x22,0xdf,0xa9,0xa8
Jonathan Austin 1:8aa5cdb4ab67 143 };