File content as of revision 0:ea0fa3076efd:

/*
Copyright (c) 2016 Y. Miyakawa

Permission is hereby granted, free of charge, to any person obtaining a copy of this software 
and associated documentation files (the "Software"), to deal in the Software without restriction, 
including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, 
and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, 
subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, 
INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR 
PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE 
FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 
ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/

#include "mbed.h"
#include "ble/BLE.h"
#include "CyclingSpeedAndCadenceService.h"
#include "ble/services/DeviceInformationService.h"

DigitalOut led1(LED1);

const static char     DEVICE_NAME[] = "CSC1";
static const uint16_t uuid16_list[] = {GattService::UUID_CYCLING_SPEED_AND_CADENCE,
                                       GattService::UUID_DEVICE_INFORMATION_SERVICE};

static volatile bool triggerSensorPolling = false;

CyclingSpeedAndCadenceService *cyclingSpeedAndCadenceService;
DeviceInformationService *deviceInfo;

uint16_t feature = CyclingSpeedAndCadenceService::FEATURE_WHEEL_REVOLUTION_DATA
                 + CyclingSpeedAndCadenceService::FEATURE_CRANK_REVOLUTION_DATA;

uint8_t flags = CyclingSpeedAndCadenceService::FLAG_WHEEL_REVOLUTION_DATA_PRESENT
              + CyclingSpeedAndCadenceService::FLAG_CRANK_REVOLUTION_DATA_PRESENT;

uint8_t location = CyclingSpeedAndCadenceService::LOCATION_CHAINSTAY;

void connectionCallback(const Gap::ConnectionCallbackParams_t *params)
{
}

void disconnectionCallback(const Gap::DisconnectionCallbackParams_t *params)
{
    triggerSensorPolling = false;
    BLE::Instance(BLE::DEFAULT_INSTANCE).gap().startAdvertising(); // restart advertising
}

void confirmationRcvCallBack(Gap::Handle_t handle)
{
}

void periodicCallback(void)
{
    led1 = !led1; /* Do blinky on LED1 while we're waiting for BLE events */

    /* Note that the periodicCallback() executes in interrupt context, so it is safer to do
     * heavy-weight sensor polling from the main thread. */
    triggerSensorPolling = true;
}

void bleInitComplete(BLE::InitializationCompleteCallbackContext *params)
{
    BLE &ble          = params->ble;
    ble_error_t error = params->error;

    if (error != BLE_ERROR_NONE) {
        return;
    }

    ble.gap().onConnection(connectionCallback);
    ble.gap().onDisconnection(disconnectionCallback);
    ble.onConfirmationReceived(confirmationRcvCallBack);

    /* Setup primary service. */
    cyclingSpeedAndCadenceService = new CyclingSpeedAndCadenceService(ble, feature, location);

    /* Setup auxiliary service. */
    deviceInfo = new DeviceInformationService(ble, "ARM", "Model1", "SN1", "hw-rev1", "fw-rev1", "soft-rev1");

    /* 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();
}

int main(void)
{
    uint16_t dCumulativeWheelRev =    4;
    uint16_t dLastWheelEventTime = 1024;
    uint16_t dCumulativeCrankRev =    1;
    uint16_t dLastCrankEventTime = 1024;

    led1 = 1;

    Ticker ticker;
    ticker.attach(periodicCallback, 1); // blink LED every second

    BLE& ble = BLE::Instance(BLE::DEFAULT_INSTANCE);
    ble.init(bleInitComplete);

    /* SpinWait for initialization to complete. This is necessary because the
     * BLE object is used in the main loop below. */
    while (ble.hasInitialized() == false) { /* spin loop */ }

    // infinite loop
    while(1) {
        if (triggerSensorPolling && ble.getGapState().connected) {
            triggerSensorPolling = false;
            dLastWheelEventTime -= 32;
            dLastCrankEventTime -= 32;
            if (dLastWheelEventTime < 512) {
                dLastWheelEventTime = 1024;
                dLastCrankEventTime = 1024;
            }
            cyclingSpeedAndCadenceService->updateCyclingSpeedAndCadence(flags, 
                dCumulativeWheelRev, dLastWheelEventTime, dCumulativeCrankRev, dLastCrankEventTime);
        } else {
            ble.waitForEvent(); // low power wait for event
        }
    }
}