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@35:8ce23bc1af38, 2016-07-13 (annotated)

Committer:
LancasterUniversity
Date:
Wed Jul 13 12:18:14 2016 +0100
Revision:
35:8ce23bc1af38
Parent:
32:ece16b5987dd
Child:
37:b624ae5e94a5
Synchronized with git rev 732971e7

Author: James Devine

microbit-dal: Added events to MicroBitPin



Added rise, fall, pulse HI and LO events.



The pulse Hi and LO event timestamp given in the MicroBitEvent is the

duration for which the input was HI or LO for.



eventOn(int eventType) is used to configure the events generated

from the pin instance.

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
LancasterUniversity 35:8ce23bc1af38 48 GattCharacteristic buttonBDataCharacteristic(MicroBitButtonBServiceDataUUID, (uint8_t *)&buttonADataCharacteristicBuffer, 0,
LancasterUniversity 35:8ce23bc1af38 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
LancasterUniversity 32:ece16b5987dd 143 };