File content as of revision 0:cfbdc6a35374:

/* mbed Microcontroller Library
 * Copyright (c) 2006-2013 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 "ButtonService.h"
#include "GroveLedService.h"
#include "ChainableLED.h"

DigitalOut  led1(LED1, 1);
InterruptIn button(BLE_BUTTON_PIN_NAME);
ChainableLED grove_led(D2, D3, 1);

static EventQueue eventQueue(
    /* event count */ 10 * /* event size */ 32
);

const static char     DEVICE_NAME[] = "DeviceLinkTest";
static const uint16_t uuid16_list[] = {ButtonService::BUTTON_SERVICE_UUID, GroveLEDService::LED_SERVICE_UUID};

ButtonService *buttonServicePtr;
GroveLEDService *ledServicePtr;

static uint8_t button_count = 0;

void buttonPressedCallback(void)
{
    eventQueue.call(Callback<void(uint8_t)>(buttonServicePtr, &ButtonService::updateButtonState), ++button_count);
}

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

void blinkCallback(void)
{
    led1 = !led1; /* Do blinky on LED1 to indicate system aliveness. */
}

void onBleInitError(BLE &ble, ble_error_t error)
{
    /* Initialization error handling should go here */
}

/**
 * This callback allows the LEDService to receive updates to the ledState Characteristic.
 *
 * @param[in] params
 *     Information about the characteristic being updated.
 */
void onDataWrittenCallback(const GattWriteCallbackParams *params) {
    if ((params->handle == ledServicePtr->getValueHandle()) && (params->len >= 3)) {
        grove_led.setColorRGB(0, params->data[0], params->data[1], params->data[2]);
    }
}

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

    if (error != BLE_ERROR_NONE) {
        /* In case of error, forward the error handling to onBleInitError */
        onBleInitError(ble, error);
        return;
    }

    /* Ensure that it is the default instance of BLE */
    if(ble.getInstanceID() != BLE::DEFAULT_INSTANCE) {
        return;
    }

    ble.gap().onDisconnection(disconnectionCallback);
    ble.gattServer().onDataWritten(onDataWrittenCallback);

    button.fall(buttonPressedCallback);

    buttonServicePtr = new ButtonService(ble, 0);
    ledServicePtr    = new GroveLEDService(ble, 0xff0000);

    /* 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::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()
{
    grove_led.setColorRGB(0, 0xff, 0, 0); // red

    eventQueue.call_every(500, blinkCallback);

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

    eventQueue.dispatch_forever();

    return 0;
}