Diff: BlynkSimpleRedBearLab_BLE_Nano.h

Revision:

2:c5b857d4f9f6

Child:

4:fa1450a7dd08

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/BlynkSimpleRedBearLab_BLE_Nano.h	Fri Jun 24 00:58:58 2016 +0300
@@ -0,0 +1,189 @@
+/**
+ * @file       BlynkSimpleRedBearLab_BLE_Nano.h
+ * @author     Volodymyr Shymanskyy
+ * @license    This project is released under the MIT License (MIT)
+ * @copyright  Copyright (c) 2015 Volodymyr Shymanskyy
+ * @date       May 2016
+ * @brief
+ *
+ */
+
+#ifndef BlynkSimpleRedBearLab_BLE_Nano_h
+#define BlynkSimpleRedBearLab_BLE_Nano_h
+
+#ifndef BLYNK_INFO_CONNECTION
+#define BLYNK_INFO_CONNECTION "RBL_BLE_Nano"
+#endif
+
+#define BLYNK_NO_YIELD
+#define BLYNK_SEND_ATOMIC
+#define BLYNK_SEND_CHUNK 20
+#define BLYNK_SEND_THROTTLE 20
+
+#include <BlynkApiArduino.h>
+#include <Blynk/BlynkProtocol.h>
+#include <utility/BlynkFifo2.h>
+#include <BLE_API.h>
+
+/*
+ * The Nordic UART Service
+ */
+static const uint8_t uart_base_uuid[]     = {0x71, 0x3D, 0, 0, 0x50, 0x3E, 0x4C, 0x75, 0xBA, 0x94, 0x31, 0x48, 0xF1, 0x8D, 0x94, 0x1E};
+static const uint8_t uart_base_uuid_rev[] = {0x1E, 0x94, 0x8D, 0xF1, 0x48, 0x31, 0x94, 0xBA, 0x75, 0x4C, 0x3E, 0x50, 0, 0, 0x3D, 0x71};
+static const uint8_t uart_tx_uuid[]       = {0x71, 0x3D, 0, 3, 0x50, 0x3E, 0x4C, 0x75, 0xBA, 0x94, 0x31, 0x48, 0xF1, 0x8D, 0x94, 0x1E};
+static const uint8_t uart_rx_uuid[]       = {0x71, 0x3D, 0, 2, 0x50, 0x3E, 0x4C, 0x75, 0xBA, 0x94, 0x31, 0x48, 0xF1, 0x8D, 0x94, 0x1E};
+static const uint8_t uart_dev_name[]      = "Blynk";
+
+#define TXRX_BUF_LEN 20
+uint8_t txPayload[TXRX_BUF_LEN] = {0,};
+uint8_t rxPayload[TXRX_BUF_LEN] = {0,};
+
+GattCharacteristic  txCharacteristic (uart_tx_uuid, txPayload, 1, TXRX_BUF_LEN,
+                                      GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_WRITE |
+                                      GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_WRITE_WITHOUT_RESPONSE);
+
+GattCharacteristic  rxCharacteristic (uart_rx_uuid, rxPayload, 1, TXRX_BUF_LEN,
+                                      GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_NOTIFY);
+
+GattCharacteristic *uartChars[] = {&txCharacteristic, &rxCharacteristic};
+
+GattService         uartService(uart_base_uuid, uartChars, sizeof(uartChars) / sizeof(GattCharacteristic*));
+
+BLE  ble;
+
+class BlynkTransportRedBearLab_BLE_Nano
+{
+public:
+	BlynkTransportRedBearLab_BLE_Nano()
+        : mConn (false)
+    {}
+
+    void begin() {
+        instance = this;
+
+        ble.gap().onConnection(connectCallback);
+        ble.gap().onDisconnection(disconnectCallback);
+
+        ble.gattServer().addService(uartService);
+        ble.gattServer().onDataWritten(writeCallback);
+        ble.gattServer().onDataSent(sentCallback);
+
+        // Setup advertising
+        ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LIST_128BIT_SERVICE_IDS,
+                                              uart_base_uuid_rev, sizeof(uart_base_uuid));
+
+    }
+
+    bool connect() {
+        mBuffRX.clear();
+        return mConn = true;
+    }
+
+    void disconnect() {
+        mConn = false;
+    }
+
+    bool connected() {
+        return mConn;
+    }
+
+    size_t read(void* buf, size_t len) {
+        uint32_t start = millis();
+        while (millis() - start < BLYNK_TIMEOUT_MS) {
+            if (available() < len) {
+                ble.waitForEvent();
+            } else {
+                break;
+            }
+        }
+        noInterrupts();
+        size_t res = mBuffRX.get((uint8_t*)buf, len);
+        interrupts();
+        return res;
+    }
+
+    size_t write(const void* buf, size_t len) {
+        ble.updateCharacteristicValue(rxCharacteristic.getValueAttribute().getHandle(), (uint8_t*)buf, len);
+        return len;
+    }
+
+    size_t available() {
+        noInterrupts();
+        size_t rxSize = mBuffRX.size();
+        interrupts();
+        return rxSize;
+    }
+
+private:
+    static BlynkTransportRedBearLab_BLE_Nano* instance;
+
+    static
+    void writeCallback(const GattWriteCallbackParams *params)
+    {
+        if (!instance)
+            return;
+      noInterrupts();
+      //BLYNK_DBG_DUMP(">> ", params->data, params->len);
+      instance->mBuffRX.put(params->data, params->len);
+      interrupts();
+    }
+
+    static
+    void sentCallback(unsigned count)
+    {
+      //Serial.print("SENT: ");
+      //Serial.println(count);
+    }
+
+    static
+    void connectCallback(const Gap::ConnectionCallbackParams_t *params);
+
+    static
+    void disconnectCallback(const Gap::DisconnectionCallbackParams_t *params);
+
+private:
+    bool mConn;
+
+    BlynkFifo<uint8_t, BLYNK_MAX_READBYTES*2> mBuffRX;
+};
+
+class BlynkRedBearLab_BLE_Nano
+    : public BlynkProtocol<BlynkTransportRedBearLab_BLE_Nano>
+{
+    typedef BlynkProtocol<BlynkTransportRedBearLab_BLE_Nano> Base;
+public:
+    BlynkRedBearLab_BLE_Nano(BlynkTransportRedBearLab_BLE_Nano& transp)
+        : Base(transp)
+    {}
+
+    void begin(const char* auth)
+    {
+        Base::begin(auth);
+        state = DISCONNECTED;
+        conn.begin();
+    }
+};
+
+BlynkTransportRedBearLab_BLE_Nano* BlynkTransportRedBearLab_BLE_Nano::instance = NULL;
+
+static BlynkTransportRedBearLab_BLE_Nano _blynkTransport;
+BlynkRedBearLab_BLE_Nano Blynk(_blynkTransport);
+
+void BlynkTransportRedBearLab_BLE_Nano::connectCallback(const Gap::ConnectionCallbackParams_t *params)
+{
+  BLYNK_LOG1("Device connected");
+  Blynk.startSession();
+}
+
+void BlynkTransportRedBearLab_BLE_Nano::disconnectCallback(const Gap::DisconnectionCallbackParams_t *params)
+{
+  BLYNK_LOG1("Device disconnected");
+  //__disable_irq();
+  Blynk.disconnect();
+  //__enable_irq();
+  ble.startAdvertising();
+}
+
+#include <BlynkWidgets.h>
+
+#endif