Diff: main.cpp

Revision:

0:5ed42babfd71

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Mon Sep 17 02:26:52 2018 +0000
@@ -0,0 +1,161 @@
+/* SDT-example-ble-uart-echo
+ * 
+ * Copyright (c) 2018 Sigma Delta Technologies Inc.
+ * 
+ * MIT License
+ * 
+ * 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 "features/FEATURE_BLE/ble/BLE.h"
+#include "features/FEATURE_BLE/ble/services/UARTService.h"
+
+/* Serial */
+#define BAUDRATE 9600
+Serial g_Serial_pc(USBTX, USBRX, BAUDRATE);
+
+/* DigitalOut */
+#define LED_ON      0
+#define LED_OFF     1
+DigitalOut g_DO_LedRed(LED_RED, LED_OFF);
+DigitalOut g_DO_LedGreen(LED_GREEN, LED_OFF);
+DigitalOut g_DO_LedBlue(LED_BLUE, LED_OFF);
+DigitalOut* g_pDO_Led = &g_DO_LedBlue;
+
+/* Ticker */
+Ticker g_Ticker;
+
+/* BLE */
+#define BLE_DEVICE_NAME "SDT Device"
+BLE& g_pBle = BLE::Instance();      // you can't use this name, 'ble', because this name is already declared in UARTService.h
+
+/* UART service */
+UARTService* g_pUartService;
+
+/* Variable */
+bool g_b_BleConnect = false;
+
+
+
+void callbackTicker(void) {
+    g_Serial_pc.printf("LED Toggle\n");
+    // *g_pDO_Led = !(*g_pDO_Led);
+}
+
+void setLED(char data) {
+    if (data <= 0) {
+        return;
+    }
+
+    if (data == 'R' || data == 'r') {
+        g_DO_LedRed = 0; g_DO_LedGreen = 1; g_DO_LedBlue = 1;
+    }
+    else if (data == 'G' || data == 'g') {
+        g_DO_LedRed = 1; g_DO_LedGreen = 0; g_DO_LedBlue = 1;
+    }
+    else if (data == 'B' || data == 'b') {
+        g_DO_LedRed = 1; g_DO_LedGreen = 1; g_DO_LedBlue = 0;
+    }
+    else {
+        g_DO_LedRed = 1; g_DO_LedGreen = 1; g_DO_LedBlue = 1;
+    }
+}
+
+void callbackBleDataWritten(const GattWriteCallbackParams* params) {
+    if ((g_pUartService != NULL) && (params->handle == g_pUartService->getTXCharacteristicHandle())) {
+        uint16_t bytesRead = params->len;
+        const uint8_t* pBleRxBuf = params->data;
+        g_Serial_pc.printf("data from BLE: %s\r\n", pBleRxBuf);
+
+        g_pBle.gattServer().write(g_pUartService->getRXCharacteristicHandle(), pBleRxBuf, bytesRead);
+        setLED(pBleRxBuf[0]);
+    }
+}
+
+void callbackBleConnection(const Gap::ConnectionCallbackParams_t* params) {
+    g_Serial_pc.printf("Connected!\n");
+    g_b_BleConnect = true;
+    *g_pDO_Led = LED_OFF;
+    g_pDO_Led = &g_DO_LedGreen;
+}
+
+void callbackBleDisconnection(const Gap::DisconnectionCallbackParams_t* params) {
+    g_Serial_pc.printf("Disconnected!\n");
+    g_Serial_pc.printf("Restarting the advertising process\n\r");
+    g_b_BleConnect = false;
+    *g_pDO_Led = LED_OFF;
+    g_pDO_Led = &g_DO_LedBlue;
+    g_pBle.gap().startAdvertising();
+}
+
+void callbackBleInitComplete(BLE::InitializationCompleteCallbackContext* params) {
+    BLE& ble = params->ble;                     // 'ble' equals g_pBle declared in global
+    ble_error_t error = params->error;          // 'error' has BLE_ERROR_NONE if the initialization procedure started successfully.
+
+    if (error == BLE_ERROR_NONE) {
+        g_Serial_pc.printf("Initialization completed successfully\n");
+    }
+    else {
+        /* In case of error, forward the error handling to onBleInitError */
+        g_Serial_pc.printf("Initialization failled\n");
+        return;
+    }
+
+    /* Ensure that it is the default instance of BLE */
+    if(ble.getInstanceID() != BLE::DEFAULT_INSTANCE) {
+        g_Serial_pc.printf("ID of BLE instance is not DEFAULT_INSTANCE\n");
+        return;
+    }
+
+    /* Setup UARTService */
+    g_pUartService = new UARTService(ble);
+
+    /* Setup and start advertising */
+    ble.gattServer().onDataWritten(callbackBleDataWritten);
+    ble.gap().onConnection(callbackBleConnection);
+    ble.gap().onDisconnection(callbackBleDisconnection);
+    ble.gap().setAdvertisingType(GapAdvertisingParams::ADV_CONNECTABLE_UNDIRECTED);
+    ble.gap().setAdvertisingInterval(1000);     // Advertising interval in units of milliseconds
+    ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::BREDR_NOT_SUPPORTED);
+    ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::SHORTENED_LOCAL_NAME, (const uint8_t *)BLE_DEVICE_NAME, sizeof(BLE_DEVICE_NAME) - 1);
+    ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LIST_128BIT_SERVICE_IDS, (const uint8_t *)UARTServiceUUID_reversed, sizeof(UARTServiceUUID_reversed));
+    ble.gap().startAdvertising();
+    g_Serial_pc.printf("Start advertising\n");
+}
+
+int main(void) {
+    g_Serial_pc.printf("< Sigma Delta Technologies Inc. >\n\r");
+
+    /* Init BLE */
+    // g_pBle.onEventsToProcess(callbackEventsToProcess);
+    g_pBle.init(callbackBleInitComplete);
+
+    /* Check whether IC is running or not */
+    g_Ticker.attach(callbackTicker, 1);
+
+    while (true) {
+        g_pBle.waitForEvent();
+    }
+
+    return 0;
+}