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Dependencies: BLE_API mbed-dev-bin nRF51822
source/bluetooth/MicroBitValueService.cpp@74:06ddfe5ccbea, 23 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?
User | Revision | Line number | New contents of line |
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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 | }; |