Dmitry Rozhkov / Mbed 2 deprecated BLE_LED

hello world

Dependencies:   BLE_API mbed nRF51822

main.cpp@0:269758c0b6ae, 2016-12-19 (annotated)

Committer:
rojkov
Date:
Mon Dec 19 15:08:08 2016 +0000
Revision:
0:269758c0b6ae
initial commit

Who changed what in which revision?

UserRevisionLine numberNew contents of line
rojkov 0:269758c0b6ae 1 /* mbed Microcontroller Library
rojkov 0:269758c0b6ae 2 * Copyright (c) 2006-2013 ARM Limited
rojkov 0:269758c0b6ae 3 *
rojkov 0:269758c0b6ae 4 * Licensed under the Apache License, Version 2.0 (the "License");
rojkov 0:269758c0b6ae 5 * you may not use this file except in compliance with the License.
rojkov 0:269758c0b6ae 6 * You may obtain a copy of the License at
rojkov 0:269758c0b6ae 7 *
rojkov 0:269758c0b6ae 8 * http://www.apache.org/licenses/LICENSE-2.0
rojkov 0:269758c0b6ae 9 *
rojkov 0:269758c0b6ae 10 * Unless required by applicable law or agreed to in writing, software
rojkov 0:269758c0b6ae 11 * distributed under the License is distributed on an "AS IS" BASIS,
rojkov 0:269758c0b6ae 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
rojkov 0:269758c0b6ae 13 * See the License for the specific language governing permissions and
rojkov 0:269758c0b6ae 14 * limitations under the License.
rojkov 0:269758c0b6ae 15 */
rojkov 0:269758c0b6ae 16
rojkov 0:269758c0b6ae 17 #include "mbed.h"
rojkov 0:269758c0b6ae 18 #include "ble/BLE.h"
rojkov 0:269758c0b6ae 19 #include "LEDService.h"
rojkov 0:269758c0b6ae 20
rojkov 0:269758c0b6ae 21 DigitalOut alivenessLED(LED1, 0);
rojkov 0:269758c0b6ae 22 DigitalOut actuatedLED(LED2, 0);
rojkov 0:269758c0b6ae 23
rojkov 0:269758c0b6ae 24 const static char DEVICE_NAME[] = "LED";
rojkov 0:269758c0b6ae 25 static const uint16_t uuid16_list[] = {LEDService::LED_SERVICE_UUID};
rojkov 0:269758c0b6ae 26
rojkov 0:269758c0b6ae 27 LEDService *ledServicePtr;
rojkov 0:269758c0b6ae 28
rojkov 0:269758c0b6ae 29 Ticker ticker;
rojkov 0:269758c0b6ae 30
rojkov 0:269758c0b6ae 31 void disconnectionCallback(const Gap::DisconnectionCallbackParams_t *params)
rojkov 0:269758c0b6ae 32 {
rojkov 0:269758c0b6ae 33 BLE::Instance().gap().startAdvertising();
rojkov 0:269758c0b6ae 34 }
rojkov 0:269758c0b6ae 35
rojkov 0:269758c0b6ae 36 void periodicCallback(void)
rojkov 0:269758c0b6ae 37 {
rojkov 0:269758c0b6ae 38 alivenessLED = !alivenessLED; /* Do blinky on LED1 to indicate system aliveness. */
rojkov 0:269758c0b6ae 39 }
rojkov 0:269758c0b6ae 40
rojkov 0:269758c0b6ae 41 /**
rojkov 0:269758c0b6ae 42 * This callback allows the LEDService to receive updates to the ledState Characteristic.
rojkov 0:269758c0b6ae 43 *
rojkov 0:269758c0b6ae 44 * @param[in] params
rojkov 0:269758c0b6ae 45 * Information about the characterisitc being updated.
rojkov 0:269758c0b6ae 46 */
rojkov 0:269758c0b6ae 47 void onDataWrittenCallback(const GattWriteCallbackParams *params) {
rojkov 0:269758c0b6ae 48 if ((params->handle == ledServicePtr->getValueHandle()) && (params->len == 1)) {
rojkov 0:269758c0b6ae 49 actuatedLED = *(params->data);
rojkov 0:269758c0b6ae 50 }
rojkov 0:269758c0b6ae 51 }
rojkov 0:269758c0b6ae 52
rojkov 0:269758c0b6ae 53 /**
rojkov 0:269758c0b6ae 54 * This function is called when the ble initialization process has failed
rojkov 0:269758c0b6ae 55 */
rojkov 0:269758c0b6ae 56 void onBleInitError(BLE &ble, ble_error_t error)
rojkov 0:269758c0b6ae 57 {
rojkov 0:269758c0b6ae 58 /* Initialization error handling should go here */
rojkov 0:269758c0b6ae 59 }
rojkov 0:269758c0b6ae 60
rojkov 0:269758c0b6ae 61 /**
rojkov 0:269758c0b6ae 62 * Callback triggered when the ble initialization process has finished
rojkov 0:269758c0b6ae 63 */
rojkov 0:269758c0b6ae 64 void bleInitComplete(BLE::InitializationCompleteCallbackContext *params)
rojkov 0:269758c0b6ae 65 {
rojkov 0:269758c0b6ae 66 BLE& ble = params->ble;
rojkov 0:269758c0b6ae 67 ble_error_t error = params->error;
rojkov 0:269758c0b6ae 68
rojkov 0:269758c0b6ae 69 if (error != BLE_ERROR_NONE) {
rojkov 0:269758c0b6ae 70 /* In case of error, forward the error handling to onBleInitError */
rojkov 0:269758c0b6ae 71 onBleInitError(ble, error);
rojkov 0:269758c0b6ae 72 return;
rojkov 0:269758c0b6ae 73 }
rojkov 0:269758c0b6ae 74
rojkov 0:269758c0b6ae 75 /* Ensure that it is the default instance of BLE */
rojkov 0:269758c0b6ae 76 if(ble.getInstanceID() != BLE::DEFAULT_INSTANCE) {
rojkov 0:269758c0b6ae 77 return;
rojkov 0:269758c0b6ae 78 }
rojkov 0:269758c0b6ae 79
rojkov 0:269758c0b6ae 80 ble.gap().onDisconnection(disconnectionCallback);
rojkov 0:269758c0b6ae 81 ble.gattServer().onDataWritten(onDataWrittenCallback);
rojkov 0:269758c0b6ae 82
rojkov 0:269758c0b6ae 83 bool initialValueForLEDCharacteristic = false;
rojkov 0:269758c0b6ae 84 ledServicePtr = new LEDService(ble, initialValueForLEDCharacteristic);
rojkov 0:269758c0b6ae 85
rojkov 0:269758c0b6ae 86 /* setup advertising */
rojkov 0:269758c0b6ae 87 ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::BREDR_NOT_SUPPORTED | GapAdvertisingData::LE_GENERAL_DISCOVERABLE);
rojkov 0:269758c0b6ae 88 ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LIST_16BIT_SERVICE_IDS, (uint8_t *)uuid16_list, sizeof(uuid16_list));
rojkov 0:269758c0b6ae 89 ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LOCAL_NAME, (uint8_t *)DEVICE_NAME, sizeof(DEVICE_NAME));
rojkov 0:269758c0b6ae 90 ble.gap().setAdvertisingType(GapAdvertisingParams::ADV_CONNECTABLE_UNDIRECTED);
rojkov 0:269758c0b6ae 91 ble.gap().setAdvertisingInterval(1000); /* 1000ms. */
rojkov 0:269758c0b6ae 92 ble.gap().startAdvertising();
rojkov 0:269758c0b6ae 93 }
rojkov 0:269758c0b6ae 94
rojkov 0:269758c0b6ae 95 int main(void)
rojkov 0:269758c0b6ae 96 {
rojkov 0:269758c0b6ae 97 ticker.attach(periodicCallback, 1); /* Blink LED every second */
rojkov 0:269758c0b6ae 98
rojkov 0:269758c0b6ae 99 BLE &ble = BLE::Instance();
rojkov 0:269758c0b6ae 100 ble.init(bleInitComplete);
rojkov 0:269758c0b6ae 101
rojkov 0:269758c0b6ae 102 /* SpinWait for initialization to complete. This is necessary because the
rojkov 0:269758c0b6ae 103 * BLE object is used in the main loop below. */
rojkov 0:269758c0b6ae 104 while (ble.hasInitialized() == false) { /* spin loop */ }
rojkov 0:269758c0b6ae 105
rojkov 0:269758c0b6ae 106 while (true) {
rojkov 0:269758c0b6ae 107 ble.waitForEvent();
rojkov 0:269758c0b6ae 108 }
rojkov 0:269758c0b6ae 109 }