Tests for BLE Uart Service
Fork of mbed-os-example-ble-HeartRate by
Diff: source/main.cpp
- Revision:
- 25:1bd8d5cc86ef
- Parent:
- 10:ac3615194d04
--- a/source/main.cpp Wed Apr 05 23:00:38 2017 +0100 +++ b/source/main.cpp Fri May 05 11:24:34 2017 +0200 @@ -1,114 +1,130 @@ -/* mbed Microcontroller Library - * Copyright (c) 2006-2015 ARM Limited - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ - -#include <events/mbed_events.h> -#include <mbed.h> -#include "ble/BLE.h" -#include "ble/Gap.h" -#include "ble/services/HeartRateService.h" - -DigitalOut led1(LED1, 1); - -const static char DEVICE_NAME[] = "HRM"; -static const uint16_t uuid16_list[] = {GattService::UUID_HEART_RATE_SERVICE}; - -static uint8_t hrmCounter = 100; // init HRM to 100bps -static HeartRateService *hrServicePtr; - -static EventQueue eventQueue( - /* event count */ 16 * /* event size */ 32 -); - -void disconnectionCallback(const Gap::DisconnectionCallbackParams_t *params) -{ - BLE::Instance().gap().startAdvertising(); // restart advertising -} - -void updateSensorValue() { - // Do blocking calls or whatever is necessary for sensor polling. - // In our case, we simply update the HRM measurement. - hrmCounter++; - - // 100 <= HRM bps <=175 - if (hrmCounter == 175) { - hrmCounter = 100; - } - - hrServicePtr->updateHeartRate(hrmCounter); -} - -void periodicCallback(void) -{ - led1 = !led1; /* Do blinky on LED1 while we're waiting for BLE events */ - - if (BLE::Instance().getGapState().connected) { - eventQueue.call(updateSensorValue); - } -} - -void onBleInitError(BLE &ble, ble_error_t error) -{ - (void)ble; - (void)error; - /* Initialization error handling should go here */ -} - -void bleInitComplete(BLE::InitializationCompleteCallbackContext *params) -{ - BLE& ble = params->ble; - ble_error_t error = params->error; - - if (error != BLE_ERROR_NONE) { - onBleInitError(ble, error); - return; - } - - if (ble.getInstanceID() != BLE::DEFAULT_INSTANCE) { - return; - } - - ble.gap().onDisconnection(disconnectionCallback); - - /* Setup primary service. */ - hrServicePtr = new HeartRateService(ble, hrmCounter, HeartRateService::LOCATION_FINGER); - - /* Setup advertising. */ - ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::BREDR_NOT_SUPPORTED | GapAdvertisingData::LE_GENERAL_DISCOVERABLE); - ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LIST_16BIT_SERVICE_IDS, (uint8_t *)uuid16_list, sizeof(uuid16_list)); - ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::GENERIC_HEART_RATE_SENSOR); - ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LOCAL_NAME, (uint8_t *)DEVICE_NAME, sizeof(DEVICE_NAME)); - ble.gap().setAdvertisingType(GapAdvertisingParams::ADV_CONNECTABLE_UNDIRECTED); - ble.gap().setAdvertisingInterval(1000); /* 1000ms */ - ble.gap().startAdvertising(); -} - -void scheduleBleEventsProcessing(BLE::OnEventsToProcessCallbackContext* context) { - BLE &ble = BLE::Instance(); - eventQueue.call(Callback<void()>(&ble, &BLE::processEvents)); -} - -int main() -{ - eventQueue.call_every(500, periodicCallback); - - BLE &ble = BLE::Instance(); - ble.onEventsToProcess(scheduleBleEventsProcessing); - ble.init(bleInitComplete); - - eventQueue.dispatch_forever(); - - return 0; -} +/* mbed Microcontroller Library + * Copyright (c) 2006-2015 ARM Limited + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include <events/mbed_events.h> +#include <mbed.h> +#include "ble/BLE.h" +#include "ble/Gap.h" +#include "ble/services/UARTService.h" + +#define NEED_CONSOLE_OUTPUT 1 /* Set this if you need debug messages on the console; + * it will have an impact on code-size and power consumption. */ + +#if NEED_CONSOLE_OUTPUT +#define DEBUG(STR) { if (uartServicePtr) uartServicePtr->write(STR, strlen(STR)); } +#else +#define DEBUG(...) /* nothing */ +#endif /* #if NEED_CONSOLE_OUTPUT */ + +DigitalOut led1(LED1, 1); + +const static char DEVICE_NAME[] = "BLE UART"; + +static uint8_t hrmCounter = 100; // init HRM to 100bps +static UARTService *uartServicePtr; + +static EventQueue eventQueue( + /* event count */ 16 * /* event size */ 32 +); + +void disconnectionCallback(const Gap::DisconnectionCallbackParams_t *params) +{ + BLE::Instance().gap().startAdvertising(); // restart advertising +} + +void updateSensorValue() +{ + char buffer[5]; + + // Do blocking calls or whatever is necessary for sensor polling. + // In our case, we simply update the HRM measurement. + hrmCounter++; + + // 100 <= HRM bps <=175 + if (hrmCounter == 175) { + hrmCounter = 100; + } + + sniprintf(buffer, 5, "%d\n\r", hrmCounter); + DEBUG(buffer); + printf("update hrmCounter: %s\n\r", buffer); +} + +void periodicCallback(void) +{ + led1 = !led1; /* Do blinky on LED1 while we're waiting for BLE events */ + + if (BLE::Instance().getGapState().connected) { + eventQueue.call(updateSensorValue); + } +} + +void onBleInitError(BLE &ble, ble_error_t error) +{ + (void)ble; + (void)error; + /* Initialization error handling should go here */ +} + +void bleInitComplete(BLE::InitializationCompleteCallbackContext *params) +{ + BLE& ble = params->ble; + ble_error_t error = params->error; + + if (error != BLE_ERROR_NONE) { + onBleInitError(ble, error); + return; + } + + if (ble.getInstanceID() != BLE::DEFAULT_INSTANCE) { + return; + } + + ble.gap().onDisconnection(disconnectionCallback); + + /* Setup primary service. */ + uartServicePtr = new UARTService(ble); + + /* Setup advertising. */ + ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::BREDR_NOT_SUPPORTED | GapAdvertisingData::LE_GENERAL_DISCOVERABLE); + ble.gap().setAdvertisingType(GapAdvertisingParams::ADV_CONNECTABLE_UNDIRECTED); + ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::SHORTENED_LOCAL_NAME, (uint8_t *)DEVICE_NAME, sizeof(DEVICE_NAME)); + + ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LIST_128BIT_SERVICE_IDS, (uint8_t *)UARTServiceUUID_reversed, sizeof(UARTServiceUUID_reversed)); + + ble.gap().setAdvertisingInterval(100); /* 100ms */ + ble.gap().startAdvertising(); +} + +void scheduleBleEventsProcessing(BLE::OnEventsToProcessCallbackContext* context) { + BLE &ble = BLE::Instance(); + eventQueue.call(Callback<void()>(&ble, &BLE::processEvents)); +} + +int main() +{ + eventQueue.call_every(100, periodicCallback); + + BLE &ble = BLE::Instance(); + ble.onEventsToProcess(scheduleBleEventsProcessing); + ble.init(bleInitComplete); + + printf("Start up...\n\r"); + + eventQueue.dispatch_forever(); + + return 0; +}