Damien Abos / microbit-dal

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Dependencies:   BLE_API mbed-dev-bin nRF51822

source/bluetooth/MicroBitValueService.cpp@74:06ddfe5ccbea, 22 months ago (annotated)

Committer:
leejinRMX
Date:
Fri Nov 04 18:30:19 2022 +0000
Revision:
74:06ddfe5ccbea
add blutooth service

Who changed what in which revision?

UserRevisionLine numberNew contents of line
leejinRMX 74:06ddfe5ccbea 1 /*
leejinRMX 74:06ddfe5ccbea 2 The MIT License (MIT)
leejinRMX 74:06ddfe5ccbea 3
leejinRMX 74:06ddfe5ccbea 4 Copyright (c) 2016 British Broadcasting Corporation.
leejinRMX 74:06ddfe5ccbea 5 This software is provided by Lancaster University by arrangement with the BBC.
leejinRMX 74:06ddfe5ccbea 6
leejinRMX 74:06ddfe5ccbea 7 Permission is hereby granted, free of charge, to any person obtaining a
leejinRMX 74:06ddfe5ccbea 8 copy of this software and associated documentation files (the "Software"),
leejinRMX 74:06ddfe5ccbea 9 to deal in the Software without restriction, including without limitation
leejinRMX 74:06ddfe5ccbea 10 the rights to use, copy, modify, merge, publish, distribute, sublicense,
leejinRMX 74:06ddfe5ccbea 11 and/or sell copies of the Software, and to permit persons to whom the
leejinRMX 74:06ddfe5ccbea 12 Software is furnished to do so, subject to the following conditions:
leejinRMX 74:06ddfe5ccbea 13
leejinRMX 74:06ddfe5ccbea 14 The above copyright notice and this permission notice shall be included in
leejinRMX 74:06ddfe5ccbea 15 all copies or substantial portions of the Software.
leejinRMX 74:06ddfe5ccbea 16
leejinRMX 74:06ddfe5ccbea 17 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
leejinRMX 74:06ddfe5ccbea 18 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
leejinRMX 74:06ddfe5ccbea 19 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
leejinRMX 74:06ddfe5ccbea 20 THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
leejinRMX 74:06ddfe5ccbea 21 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
leejinRMX 74:06ddfe5ccbea 22 FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
leejinRMX 74:06ddfe5ccbea 23 DEALINGS IN THE SOFTWARE.
leejinRMX 74:06ddfe5ccbea 24 */
leejinRMX 74:06ddfe5ccbea 25
leejinRMX 74:06ddfe5ccbea 26 /**
leejinRMX 74:06ddfe5ccbea 27 * Class definition for the MicroBit BLE Magnetometer Service.
leejinRMX 74:06ddfe5ccbea 28 * Provides access to live magnetometer data via BLE, and provides basic configuration options.
leejinRMX 74:06ddfe5ccbea 29 */
leejinRMX 74:06ddfe5ccbea 30 #include "MicroBitConfig.h"
leejinRMX 74:06ddfe5ccbea 31 #include "ble/UUID.h"
leejinRMX 74:06ddfe5ccbea 32
leejinRMX 74:06ddfe5ccbea 33 #include "MicroBitValueService.h"
leejinRMX 74:06ddfe5ccbea 34
leejinRMX 74:06ddfe5ccbea 35 /**
leejinRMX 74:06ddfe5ccbea 36 * Constructor.
leejinRMX 74:06ddfe5ccbea 37 * Create a representation of the MagnetometerService.
leejinRMX 74:06ddfe5ccbea 38 * @param _ble The instance of a BLE device that we're running on.
leejinRMX 74:06ddfe5ccbea 39 * @param _compass An instance of MicroBitCompass to use as our Magnetometer source.
leejinRMX 74:06ddfe5ccbea 40 */
leejinRMX 74:06ddfe5ccbea 41 MicroBitValueService::MicroBitValueService(BLEDevice &_ble, uint16_t *_value) :
leejinRMX 74:06ddfe5ccbea 42 ble(_ble), value(_value)
leejinRMX 74:06ddfe5ccbea 43 {
leejinRMX 74:06ddfe5ccbea 44 #if CONFIG_ENABLED(MICROBIT_DBG)
leejinRMX 74:06ddfe5ccbea 45 if(SERIAL_DEBUG) SERIAL_DEBUG->printf("MicroBitValueService::MicroBitValueService value = %i\r\n", *value);
leejinRMX 74:06ddfe5ccbea 46 #endif
leejinRMX 74:06ddfe5ccbea 47 // Create the data structures that represent each of our characteristics in Soft Device.
leejinRMX 74:06ddfe5ccbea 48
leejinRMX 74:06ddfe5ccbea 49 GattCharacteristic valueCharacteristic(MicroBitValueServiceDataUUID, (uint8_t *)&valueCharacteristicBuffer, 0,
leejinRMX 74:06ddfe5ccbea 50 sizeof(valueCharacteristicBuffer),
leejinRMX 74:06ddfe5ccbea 51 GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_READ | GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_WRITE);
leejinRMX 74:06ddfe5ccbea 52
leejinRMX 74:06ddfe5ccbea 53 // Initialise our characteristic values.
leejinRMX 74:06ddfe5ccbea 54 valueCharacteristicBuffer = *value;
leejinRMX 74:06ddfe5ccbea 55
leejinRMX 74:06ddfe5ccbea 56 // Set default security requirements
leejinRMX 74:06ddfe5ccbea 57 valueCharacteristic.requireSecurity(SecurityManager::MICROBIT_BLE_SECURITY_LEVEL);
leejinRMX 74:06ddfe5ccbea 58
leejinRMX 74:06ddfe5ccbea 59 GattCharacteristic *characteristics[] = {&valueCharacteristic};
leejinRMX 74:06ddfe5ccbea 60 GattService service(MicroBitValueServiceUUID, characteristics, sizeof(characteristics) / sizeof(GattCharacteristic *));
leejinRMX 74:06ddfe5ccbea 61
leejinRMX 74:06ddfe5ccbea 62 ble.addService(service);
leejinRMX 74:06ddfe5ccbea 63
leejinRMX 74:06ddfe5ccbea 64 valueCharacteristicHandle = valueCharacteristic.getValueHandle();
leejinRMX 74:06ddfe5ccbea 65
leejinRMX 74:06ddfe5ccbea 66 ble.gattServer().write(valueCharacteristicHandle, (const uint8_t *)&valueCharacteristicBuffer, sizeof(valueCharacteristicBuffer));
leejinRMX 74:06ddfe5ccbea 67
leejinRMX 74:06ddfe5ccbea 68 ble.gattServer().onDataWritten(this, &MicroBitValueService::onDataWritten);
leejinRMX 74:06ddfe5ccbea 69
leejinRMX 74:06ddfe5ccbea 70 if (EventModel::defaultEventBus)
leejinRMX 74:06ddfe5ccbea 71 {
leejinRMX 74:06ddfe5ccbea 72 EventModel::defaultEventBus->listen(MICROBIT_ID_VALUE, MICROBIT_VALUE_EVT_UPDATE, this, &MicroBitValueService::valueUpdate, MESSAGE_BUS_LISTENER_IMMEDIATE);
leejinRMX 74:06ddfe5ccbea 73 }
leejinRMX 74:06ddfe5ccbea 74 }
leejinRMX 74:06ddfe5ccbea 75
leejinRMX 74:06ddfe5ccbea 76 /**
leejinRMX 74:06ddfe5ccbea 77 * Callback. Invoked when any of our attributes are written via BLE.
leejinRMX 74:06ddfe5ccbea 78 */
leejinRMX 74:06ddfe5ccbea 79 void MicroBitValueService::onDataWritten(const GattWriteCallbackParams *params)
leejinRMX 74:06ddfe5ccbea 80 {
leejinRMX 74:06ddfe5ccbea 81
leejinRMX 74:06ddfe5ccbea 82 if (params->handle == valueCharacteristicHandle && params->len >= sizeof(valueCharacteristicBuffer))
leejinRMX 74:06ddfe5ccbea 83 {
leejinRMX 74:06ddfe5ccbea 84 valueCharacteristicBuffer = *((uint16_t *)params->data);
leejinRMX 74:06ddfe5ccbea 85 *value = valueCharacteristicBuffer;
leejinRMX 74:06ddfe5ccbea 86 //MicroBitEvent e(41, MICROBIT_VALUE_EVT_UPDATE);
leejinRMX 74:06ddfe5ccbea 87 }
leejinRMX 74:06ddfe5ccbea 88 }
leejinRMX 74:06ddfe5ccbea 89
leejinRMX 74:06ddfe5ccbea 90 /**
leejinRMX 74:06ddfe5ccbea 91 * Magnetometer update callback
leejinRMX 74:06ddfe5ccbea 92 */
leejinRMX 74:06ddfe5ccbea 93 void MicroBitValueService::valueUpdate(MicroBitEvent)
leejinRMX 74:06ddfe5ccbea 94 {
leejinRMX 74:06ddfe5ccbea 95
leejinRMX 74:06ddfe5ccbea 96 #if CONFIG_ENABLED(MICROBIT_DBG)
leejinRMX 74:06ddfe5ccbea 97 if(SERIAL_DEBUG) SERIAL_DEBUG->printf("MicroBitValueService::valueUpdate\r\n");
leejinRMX 74:06ddfe5ccbea 98 #endif
leejinRMX 74:06ddfe5ccbea 99
leejinRMX 74:06ddfe5ccbea 100 if (ble.getGapState().connected)
leejinRMX 74:06ddfe5ccbea 101 {
leejinRMX 74:06ddfe5ccbea 102 valueCharacteristicBuffer = *value;
leejinRMX 74:06ddfe5ccbea 103 ble.gattServer().write(valueCharacteristicHandle, (const uint8_t *)&valueCharacteristicBuffer, sizeof(valueCharacteristicBuffer));
leejinRMX 74:06ddfe5ccbea 104 }
leejinRMX 74:06ddfe5ccbea 105
leejinRMX 74:06ddfe5ccbea 106 }
leejinRMX 74:06ddfe5ccbea 107
leejinRMX 74:06ddfe5ccbea 108 const uint8_t MicroBitValueServiceUUID[] = {
leejinRMX 74:06ddfe5ccbea 109 0xab,0x05,0xf2,0xd8,0x25,0x1d,0x47,0x0a,0xa0,0x62,0xfa,0x19,0x22,0xdf,0xa9,0xa8
leejinRMX 74:06ddfe5ccbea 110 };
leejinRMX 74:06ddfe5ccbea 111
leejinRMX 74:06ddfe5ccbea 112 const uint8_t MicroBitValueServiceDataUUID[] = {
leejinRMX 74:06ddfe5ccbea 113 0xab,0x05,0xfb,0x11,0x25,0x1d,0x47,0x0a,0xa0,0x62,0xfa,0x19,0x22,0xdf,0xa9,0xa8
leejinRMX 74:06ddfe5ccbea 114 };
leejinRMX 74:06ddfe5ccbea 115
leejinRMX 74:06ddfe5ccbea 116 const uint8_t MicroBitValueServicePeriodUUID[] = {
leejinRMX 74:06ddfe5ccbea 117 0xab,0x05,0x38,0x6c,0x25,0x1d,0x47,0x0a,0xa0,0x62,0xfa,0x19,0x22,0xdf,0xa9,0xa8
leejinRMX 74:06ddfe5ccbea 118 };
leejinRMX 74:06ddfe5ccbea 119
leejinRMX 74:06ddfe5ccbea 120 const uint8_t MicroBitValueServiceBearingUUID[] = {
leejinRMX 74:06ddfe5ccbea 121 0xab,0x05,0x97,0x15,0x25,0x1d,0x47,0x0a,0xa0,0x62,0xfa,0x19,0x22,0xdf,0xa9,0xa8
leejinRMX 74:06ddfe5ccbea 122 };