Diff: HSP/Hsp_BLE/BluetoothLE/BluetoothLE.cpp

Revision:

0:e4a10ed6eb92

Child:

1:9490836294ea

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/HSP/Hsp_BLE/BluetoothLE/BluetoothLE.cpp	Tue Oct 25 15:22:11 2016 +0000
@@ -0,0 +1,172 @@
+/*******************************************************************************
+ * Copyright (C) 2016 Maxim Integrated Products, Inc., All Rights Reserved.
+ *
+ * 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 MAXIM INTEGRATED 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.
+ *
+ * Except as contained in this notice, the name of Maxim Integrated
+ * Products, Inc. shall not be used except as stated in the Maxim Integrated
+ * Products, Inc. Branding Policy.
+ *
+ * The mere transfer of this software does not imply any licenses
+ * of trade secrets, proprietary technology, copyrights, patents,
+ * trademarks, maskwork rights, or any other form of intellectual
+ * property whatsoever. Maxim Integrated Products, Inc. retains all
+ * ownership rights.
+ *******************************************************************************
+ */
+#include "BluetoothLE.h"
+#include "Characteristic.h"
+
+/**
+ * @brief Constructor for class
+ */
+BluetoothLE::BluetoothLE(BLE *ble, int numberOfCharacteristics)
+    : ble(ble), runningIndex(0),
+      numberOfCharacteristics(numberOfCharacteristics) {
+  characteristics = new Characteristic *[numberOfCharacteristics];
+  gattCharacteristics = new GattCharacteristic *[numberOfCharacteristics];
+}
+
+/**
+ * @brief Destructor for class
+ */
+BluetoothLE::~BluetoothLE(void) {
+  for (int i = 0; i < numberOfCharacteristics; i++) delete characteristics[i];
+  delete[] gattCharacteristics;
+  delete[] characteristics;
+}
+
+/**
+ * @brief Initialize the advertising, characteristics, service for this platform
+ */
+void BluetoothLE::addCharacteristic(Characteristic *characteristic) {
+  characteristic->setBLE(ble);
+  characteristic->setIndex(runningIndex);
+  characteristics[runningIndex] = characteristic;
+  gattCharacteristics[runningIndex] = characteristic->getGattCharacteristic();
+  runningIndex++;
+}
+
+/**
+ * @brief Initialize the advertising, characteristics, service for this platform
+ */
+void BluetoothLE::initService(uint8_t *serialNumber, uint8_t *deviceName,
+                              int nameSize, uint8_t *serviceUUID) {
+  ble->init();
+  ble->onDisconnection(this, &BluetoothLE::disconnectionCallback);
+
+  ble->gap().setAddress((BLEProtocol::AddressType_t)0, serialNumber);
+
+  // Setup Advertising
+  ble->accumulateAdvertisingPayload(
+      GapAdvertisingData::BREDR_NOT_SUPPORTED |
+      GapAdvertisingData::LE_GENERAL_DISCOVERABLE);
+  ble->accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LOCAL_NAME,
+                                    (uint8_t *)deviceName, nameSize);
+  ble->setAdvertisingType(GapAdvertisingParams::ADV_CONNECTABLE_UNDIRECTED);
+  ble->setAdvertisingInterval(1600); // 1000ms; in multiples of 0.625ms.
+  GattService envService(serviceUUID, gattCharacteristics,
+                         numberOfCharacteristics);
+  ble->gattServer().addService(envService);
+  ble->onDataWritten(this, &BluetoothLE::onDataWritten);
+  // Start Advertising
+  ble->startAdvertising();
+}
+
+static const Gap::ConnectionParams_t paramsLowPower = {
+    400,    /**< Minimum Connection Interval in 1.25 ms units, see @ref BLE_GAP_CP_LIMITS.*/
+    400,    /**< Maximum Connection Interval in 1.25 ms units, see @ref BLE_GAP_CP_LIMITS.*/
+    60,     /**< Slave Latency in number of connection events, see @ref BLE_GAP_CP_LIMITS.*/
+    3100    /**< Connection Supervision Timeout in 10 ms units, see @ref BLE_GAP_CP_LIMITS.*/
+};
+
+static Gap::Handle_t connHandle = 0;
+
+/**
+ * @brief Called on BLE connection
+ */
+void BluetoothLE::connectionCallback(
+    const Gap::ConnectionCallbackParams_t *params) {
+  connHandle = params->handle;
+}
+
+/**
+ * @brief Start advertising on a disconnect
+ */
+void BluetoothLE::disconnectionCallback(
+    const Gap::DisconnectionCallbackParams_t *params) {
+  _isConnected = false;
+  ble->startAdvertising();
+}
+
+/**
+ * @brief Called when the client writes to a writable characteristic
+ * @param params Pointer to a structure that contains details on what was
+ * written
+ */
+void BluetoothLE::onDataWritten(const GattWriteCallbackParams *params) {
+  int i;
+  int index = 0;
+  // match the characteristic handle
+  printf("BluetoothLE::onDataWritten ");
+  for (i = 0; i < numberOfCharacteristics; i++) {
+    if (params->handle == gattCharacteristics[i]->getValueHandle()) {
+      characteristics[i]->copyDataWritten(params);
+      index = i;
+      break;
+    }
+  }
+  (*_onDataWritten)(index);
+}
+
+/**
+* @brief Update the characteristic notification
+* @param index Index of the characteristic
+* @param data Pointer to the byte data to update the charateristic payload
+*/
+void BluetoothLE::notifyCharacteristic(int index, uint8_t *data) {
+  for (int i = 0; i < characteristics[index]->getPayloadLength(); i++) {
+    characteristics[index]->getPayloadBytes()[i] = data[i];
+  }
+  characteristics[index]->update();
+}
+
+/**
+* @brief Update the characteristic notification
+* @param index Index of the characteristic
+* @param data Pointer to the byte data to update the charateristic payload
+*/
+void BluetoothLE::notifyCharacteristicTest(int index) {
+  for (int i = 0; i < characteristics[index]->getPayloadLength(); i++) {
+    characteristics[index]->getPayloadBytes()[i]++;
+  }
+  characteristics[index]->update();
+}
+
+uint8_t *BluetoothLE::getDataWritten(int index, int *length) {
+  return characteristics[index]->getDataWritten(length);
+}
+
+/**
+* @brief Function to query if a BLE connection is active
+* @return true if BLE connected, false if BLE is not connected
+*/
+bool BluetoothLE::isConnected(void) {
+  return (ble->getGapState().connected == 1 ? true : false);
+}