Jan Jongboom / Mbed OS ble-devicelink-example

Example program for mbed Cloud Bluetooth Devicelink

Dependencies:   ChainableLED

source/main.cpp@0:cfbdc6a35374, 2017-05-01 (annotated)

Committer:
Jan Jongboom
Date:
Mon May 01 14:04:51 2017 +0200
Revision:
0:cfbdc6a35374
Initial commit

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Jan Jongboom 0:cfbdc6a35374 1 /* mbed Microcontroller Library
Jan Jongboom 0:cfbdc6a35374 2 * Copyright (c) 2006-2013 ARM Limited
Jan Jongboom 0:cfbdc6a35374 3 *
Jan Jongboom 0:cfbdc6a35374 4 * Licensed under the Apache License, Version 2.0 (the "License");
Jan Jongboom 0:cfbdc6a35374 5 * you may not use this file except in compliance with the License.
Jan Jongboom 0:cfbdc6a35374 6 * You may obtain a copy of the License at
Jan Jongboom 0:cfbdc6a35374 7 *
Jan Jongboom 0:cfbdc6a35374 8 * http://www.apache.org/licenses/LICENSE-2.0
Jan Jongboom 0:cfbdc6a35374 9 *
Jan Jongboom 0:cfbdc6a35374 10 * Unless required by applicable law or agreed to in writing, software
Jan Jongboom 0:cfbdc6a35374 11 * distributed under the License is distributed on an "AS IS" BASIS,
Jan Jongboom 0:cfbdc6a35374 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
Jan Jongboom 0:cfbdc6a35374 13 * See the License for the specific language governing permissions and
Jan Jongboom 0:cfbdc6a35374 14 * limitations under the License.
Jan Jongboom 0:cfbdc6a35374 15 */
Jan Jongboom 0:cfbdc6a35374 16 #include <events/mbed_events.h>
Jan Jongboom 0:cfbdc6a35374 17
Jan Jongboom 0:cfbdc6a35374 18 #include <mbed.h>
Jan Jongboom 0:cfbdc6a35374 19 #include "ble/BLE.h"
Jan Jongboom 0:cfbdc6a35374 20 #include "ble/Gap.h"
Jan Jongboom 0:cfbdc6a35374 21 #include "ButtonService.h"
Jan Jongboom 0:cfbdc6a35374 22 #include "GroveLedService.h"
Jan Jongboom 0:cfbdc6a35374 23 #include "ChainableLED.h"
Jan Jongboom 0:cfbdc6a35374 24
Jan Jongboom 0:cfbdc6a35374 25 DigitalOut led1(LED1, 1);
Jan Jongboom 0:cfbdc6a35374 26 InterruptIn button(BLE_BUTTON_PIN_NAME);
Jan Jongboom 0:cfbdc6a35374 27 ChainableLED grove_led(D2, D3, 1);
Jan Jongboom 0:cfbdc6a35374 28
Jan Jongboom 0:cfbdc6a35374 29 static EventQueue eventQueue(
Jan Jongboom 0:cfbdc6a35374 30 /* event count */ 10 * /* event size */ 32
Jan Jongboom 0:cfbdc6a35374 31 );
Jan Jongboom 0:cfbdc6a35374 32
Jan Jongboom 0:cfbdc6a35374 33 const static char DEVICE_NAME[] = "DeviceLinkTest";
Jan Jongboom 0:cfbdc6a35374 34 static const uint16_t uuid16_list[] = {ButtonService::BUTTON_SERVICE_UUID, GroveLEDService::LED_SERVICE_UUID};
Jan Jongboom 0:cfbdc6a35374 35
Jan Jongboom 0:cfbdc6a35374 36 ButtonService *buttonServicePtr;
Jan Jongboom 0:cfbdc6a35374 37 GroveLEDService *ledServicePtr;
Jan Jongboom 0:cfbdc6a35374 38
Jan Jongboom 0:cfbdc6a35374 39 static uint8_t button_count = 0;
Jan Jongboom 0:cfbdc6a35374 40
Jan Jongboom 0:cfbdc6a35374 41 void buttonPressedCallback(void)
Jan Jongboom 0:cfbdc6a35374 42 {
Jan Jongboom 0:cfbdc6a35374 43 eventQueue.call(Callback<void(uint8_t)>(buttonServicePtr, &ButtonService::updateButtonState), ++button_count);
Jan Jongboom 0:cfbdc6a35374 44 }
Jan Jongboom 0:cfbdc6a35374 45
Jan Jongboom 0:cfbdc6a35374 46 void disconnectionCallback(const Gap::DisconnectionCallbackParams_t *params)
Jan Jongboom 0:cfbdc6a35374 47 {
Jan Jongboom 0:cfbdc6a35374 48 BLE::Instance().gap().startAdvertising(); // restart advertising
Jan Jongboom 0:cfbdc6a35374 49 }
Jan Jongboom 0:cfbdc6a35374 50
Jan Jongboom 0:cfbdc6a35374 51 void blinkCallback(void)
Jan Jongboom 0:cfbdc6a35374 52 {
Jan Jongboom 0:cfbdc6a35374 53 led1 = !led1; /* Do blinky on LED1 to indicate system aliveness. */
Jan Jongboom 0:cfbdc6a35374 54 }
Jan Jongboom 0:cfbdc6a35374 55
Jan Jongboom 0:cfbdc6a35374 56 void onBleInitError(BLE &ble, ble_error_t error)
Jan Jongboom 0:cfbdc6a35374 57 {
Jan Jongboom 0:cfbdc6a35374 58 /* Initialization error handling should go here */
Jan Jongboom 0:cfbdc6a35374 59 }
Jan Jongboom 0:cfbdc6a35374 60
Jan Jongboom 0:cfbdc6a35374 61 /**
Jan Jongboom 0:cfbdc6a35374 62 * This callback allows the LEDService to receive updates to the ledState Characteristic.
Jan Jongboom 0:cfbdc6a35374 63 *
Jan Jongboom 0:cfbdc6a35374 64 * @param[in] params
Jan Jongboom 0:cfbdc6a35374 65 * Information about the characteristic being updated.
Jan Jongboom 0:cfbdc6a35374 66 */
Jan Jongboom 0:cfbdc6a35374 67 void onDataWrittenCallback(const GattWriteCallbackParams *params) {
Jan Jongboom 0:cfbdc6a35374 68 if ((params->handle == ledServicePtr->getValueHandle()) && (params->len >= 3)) {
Jan Jongboom 0:cfbdc6a35374 69 grove_led.setColorRGB(0, params->data[0], params->data[1], params->data[2]);
Jan Jongboom 0:cfbdc6a35374 70 }
Jan Jongboom 0:cfbdc6a35374 71 }
Jan Jongboom 0:cfbdc6a35374 72
Jan Jongboom 0:cfbdc6a35374 73 void bleInitComplete(BLE::InitializationCompleteCallbackContext *params)
Jan Jongboom 0:cfbdc6a35374 74 {
Jan Jongboom 0:cfbdc6a35374 75 BLE& ble = params->ble;
Jan Jongboom 0:cfbdc6a35374 76 ble_error_t error = params->error;
Jan Jongboom 0:cfbdc6a35374 77
Jan Jongboom 0:cfbdc6a35374 78 if (error != BLE_ERROR_NONE) {
Jan Jongboom 0:cfbdc6a35374 79 /* In case of error, forward the error handling to onBleInitError */
Jan Jongboom 0:cfbdc6a35374 80 onBleInitError(ble, error);
Jan Jongboom 0:cfbdc6a35374 81 return;
Jan Jongboom 0:cfbdc6a35374 82 }
Jan Jongboom 0:cfbdc6a35374 83
Jan Jongboom 0:cfbdc6a35374 84 /* Ensure that it is the default instance of BLE */
Jan Jongboom 0:cfbdc6a35374 85 if(ble.getInstanceID() != BLE::DEFAULT_INSTANCE) {
Jan Jongboom 0:cfbdc6a35374 86 return;
Jan Jongboom 0:cfbdc6a35374 87 }
Jan Jongboom 0:cfbdc6a35374 88
Jan Jongboom 0:cfbdc6a35374 89 ble.gap().onDisconnection(disconnectionCallback);
Jan Jongboom 0:cfbdc6a35374 90 ble.gattServer().onDataWritten(onDataWrittenCallback);
Jan Jongboom 0:cfbdc6a35374 91
Jan Jongboom 0:cfbdc6a35374 92 button.fall(buttonPressedCallback);
Jan Jongboom 0:cfbdc6a35374 93
Jan Jongboom 0:cfbdc6a35374 94 buttonServicePtr = new ButtonService(ble, 0);
Jan Jongboom 0:cfbdc6a35374 95 ledServicePtr = new GroveLEDService(ble, 0xff0000);
Jan Jongboom 0:cfbdc6a35374 96
Jan Jongboom 0:cfbdc6a35374 97 /* setup advertising */
Jan Jongboom 0:cfbdc6a35374 98 ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::BREDR_NOT_SUPPORTED | GapAdvertisingData::LE_GENERAL_DISCOVERABLE);
Jan Jongboom 0:cfbdc6a35374 99 ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LIST_16BIT_SERVICE_IDS, (uint8_t *)uuid16_list, sizeof(uuid16_list));
Jan Jongboom 0:cfbdc6a35374 100 ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LOCAL_NAME, (uint8_t *)DEVICE_NAME, sizeof(DEVICE_NAME));
Jan Jongboom 0:cfbdc6a35374 101 ble.gap().setAdvertisingType(GapAdvertisingParams::ADV_CONNECTABLE_UNDIRECTED);
Jan Jongboom 0:cfbdc6a35374 102 ble.gap().setAdvertisingInterval(1000); /* 1000ms. */
Jan Jongboom 0:cfbdc6a35374 103 ble.gap().startAdvertising();
Jan Jongboom 0:cfbdc6a35374 104 }
Jan Jongboom 0:cfbdc6a35374 105
Jan Jongboom 0:cfbdc6a35374 106 void scheduleBleEventsProcessing(BLE::OnEventsToProcessCallbackContext* context) {
Jan Jongboom 0:cfbdc6a35374 107 BLE &ble = BLE::Instance();
Jan Jongboom 0:cfbdc6a35374 108 eventQueue.call(Callback<void()>(&ble, &BLE::processEvents));
Jan Jongboom 0:cfbdc6a35374 109 }
Jan Jongboom 0:cfbdc6a35374 110
Jan Jongboom 0:cfbdc6a35374 111 int main()
Jan Jongboom 0:cfbdc6a35374 112 {
Jan Jongboom 0:cfbdc6a35374 113 grove_led.setColorRGB(0, 0xff, 0, 0); // red
Jan Jongboom 0:cfbdc6a35374 114
Jan Jongboom 0:cfbdc6a35374 115 eventQueue.call_every(500, blinkCallback);
Jan Jongboom 0:cfbdc6a35374 116
Jan Jongboom 0:cfbdc6a35374 117 BLE &ble = BLE::Instance();
Jan Jongboom 0:cfbdc6a35374 118 ble.onEventsToProcess(scheduleBleEventsProcessing);
Jan Jongboom 0:cfbdc6a35374 119 ble.init(bleInitComplete);
Jan Jongboom 0:cfbdc6a35374 120
Jan Jongboom 0:cfbdc6a35374 121 eventQueue.dispatch_forever();
Jan Jongboom 0:cfbdc6a35374 122
Jan Jongboom 0:cfbdc6a35374 123 return 0;
Jan Jongboom 0:cfbdc6a35374 124 }