Diff: main.cpp

Revision:

0:7d5ec759888b

Child:

5:b7d7ca715fdb

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Mon Jul 25 16:32:20 2016 +0300
@@ -0,0 +1,342 @@
+/*
+ * Copyright (c) 2015 ARM Limited. All rights reserved.
+ * SPDX-License-Identifier: Apache-2.0
+ * 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 "simpleclient.h"
+#include <string>
+#include <sstream>
+#include <vector>
+#include "mbed-trace/mbed_trace.h"
+
+#include "security.h"
+
+#include "mbed.h"
+#include "rtos.h"
+
+#define ETHERNET        1
+#define WIFI            2
+#define MESH_LOWPAN_ND  3
+#define MESH_THREAD     4
+
+#define STRINGIFY(s) #s
+
+#if MBED_CONF_APP_NETWORK_INTERFACE == WIFI
+#include "ESP8266Interface.h"
+ESP8266Interface esp(D1, D0);
+#elif MBED_CONF_APP_NETWORK_INTERFACE == ETHERNET
+#include "EthernetInterface.h"
+EthernetInterface eth;
+#elif MBED_CONF_APP_NETWORK_INTERFACE == MESH_LOWPAN_ND
+#define MESH
+#include "NanostackInterface.h"
+LoWPANNDInterface mesh;
+#elif MBED_CONF_APP_NETWORK_INTERFACE == MESH_THREAD
+#define MESH
+#include "NanostackInterface.h"
+ThreadInterface mesh;
+#endif
+
+#ifndef MESH
+// This is address to mbed Device Connector
+#define MBED_SERVER_ADDRESS "coap://api.connector.mbed.com:5684"
+#else
+// This is address to mbed Device Connector
+#define MBED_SERVER_ADDRESS "coaps://[2607:f0d0:2601:52::20]:5684"
+#endif
+
+Serial output(USBTX, USBRX);
+
+// These are example resource values for the Device Object
+struct MbedClientDevice device = {
+    "Manufacturer_String",      // Manufacturer
+    "Type_String",              // Type
+    "ModelNumber_String",       // ModelNumber
+    "SerialNumber_String"       // SerialNumber
+};
+
+// Instantiate the class which implements LWM2M Client API (from simpleclient.h)
+MbedClient mbed_client(device);
+
+// Set up Hardware interrupt button.
+InterruptIn obs_button(SW2);
+InterruptIn unreg_button(SW3);
+
+// LED Output
+DigitalOut led1(LED1);
+
+/*
+ * The Led contains one property (pattern) and a function (blink).
+ * When the function blink is executed, the pattern is read, and the LED
+ * will blink based on the pattern.
+ */
+class LedResource {
+public:
+    LedResource() {
+        // create ObjectID with metadata tag of '3201', which is 'digital output'
+        led_object = M2MInterfaceFactory::create_object("3201");
+        M2MObjectInstance* led_inst = led_object->create_object_instance();
+
+        // 5853 = Multi-state output
+        M2MResource* pattern_res = led_inst->create_dynamic_resource("5853", "Pattern",
+            M2MResourceInstance::STRING, false);
+        // read and write
+        pattern_res->set_operation(M2MBase::GET_PUT_ALLOWED);
+        // set initial pattern (toggle every 200ms. 7 toggles in total)
+        pattern_res->set_value((const uint8_t*)"500:500:500:500:500:500:500", 27);
+
+        // there's not really an execute LWM2M ID that matches... hmm...
+        M2MResource* led_res = led_inst->create_dynamic_resource("5850", "Blink",
+            M2MResourceInstance::OPAQUE, false);
+        // we allow executing a function here...
+        led_res->set_operation(M2MBase::POST_ALLOWED);
+        // when a POST comes in, we want to execute the led_execute_callback
+        led_res->set_execute_function(execute_callback(this, &LedResource::blink));
+    }
+
+    M2MObject* get_object() {
+        return led_object;
+    }
+
+    void blink(void *) {
+        // read the value of 'Pattern'
+        M2MObjectInstance* inst = led_object->object_instance();
+        M2MResource* res = inst->resource("5853");
+
+        // values in mbed Client are all buffers, and we need a vector of int's
+        uint8_t* buffIn = NULL;
+        uint32_t sizeIn;
+        res->get_value(buffIn, sizeIn);
+
+        // turn the buffer into a string, and initialize a vector<int> on the heap
+        std::string s((char*)buffIn, sizeIn);
+        std::vector<uint32_t>* v = new std::vector<uint32_t>;
+
+        output.printf("led_execute_callback pattern=%s\r\n", s.c_str());
+
+        // our pattern is something like 500:200:500, so parse that
+        std::size_t found = s.find_first_of(":");
+        while (found!=std::string::npos) {
+
+            v->push_back(atoi((const char*)s.substr(0,found).c_str()));
+            s = s.substr(found+1);
+            found=s.find_first_of(":");
+            if(found == std::string::npos) {
+                v->push_back(atoi((const char*)s.c_str()));
+            }
+        }
+
+
+        // do_blink is called with the vector, and starting at -1
+        do_blink(v, 0);
+    }
+
+private:
+    M2MObject* led_object;
+
+    void do_blink(std::vector<uint32_t>* pattern, uint16_t position) {
+        // blink the LED
+        led1 = !led1;
+
+        // up the position, if we reached the end of the vector
+        if (position >= pattern->size()) {
+            // free memory, and exit this function
+            delete pattern;
+            return;
+        }
+
+        // how long do we need to wait before the next blink?
+        uint32_t delay_ms = pattern->at(position);
+
+        // Invoke same function after `delay_ms` (upping position)
+        Thread::wait(delay_ms);
+        do_blink(pattern, ++position);
+    }
+};
+
+/*
+ * The button contains one property (click count).
+ * When `handle_button_click` is executed, the counter updates.
+ */
+class ButtonResource {
+public:
+    ButtonResource(): counter(0) {
+        // create ObjectID with metadata tag of '3200', which is 'digital input'
+        btn_object = M2MInterfaceFactory::create_object("3200");
+        M2MObjectInstance* btn_inst = btn_object->create_object_instance();
+        // create resource with ID '5501', which is digital input counter
+        M2MResource* btn_res = btn_inst->create_dynamic_resource("5501", "Button",
+            M2MResourceInstance::INTEGER, true /* observable */);
+        // we can read this value
+        btn_res->set_operation(M2MBase::GET_ALLOWED);
+        // set initial value (all values in mbed Client are buffers)
+        // to be able to read this data easily in the Connector console, we'll use a string
+        btn_res->set_value((uint8_t*)"0", 1);        
+    }
+
+    ~ButtonResource() {
+    }
+
+    M2MObject* get_object() {
+        return btn_object;
+    }
+
+    /*
+     * When you press the button, we read the current value of the click counter
+     * from mbed Device Connector, then up the value with one.
+     */
+    void handle_button_click() {
+        M2MObjectInstance* inst = btn_object->object_instance();
+        M2MResource* res = inst->resource("5501");
+
+        // up counter
+        counter++;
+
+        printf("handle_button_click, new value of counter is %d\r\n", counter);
+
+        // serialize the value of counter as a string, and tell connector
+        char buffer[20];
+        int size = sprintf(buffer,"%d",counter);
+        res->set_value((uint8_t*)buffer, size);
+    }
+
+private:
+    M2MObject* btn_object;
+    uint16_t counter;
+};
+
+// Network interaction must be performed outside of interrupt context
+Semaphore updates(0);
+volatile bool registered = false;
+volatile bool clicked = false;
+osThreadId mainThread;
+
+void unregister() {
+    registered = false;
+    updates.release();
+}
+
+void button_clicked() {
+    clicked = true;
+    updates.release();
+}
+
+// debug printf function
+void trace_printer(const char* str) {
+    printf("%s\r\n", str);
+}
+
+// Status indication
+Ticker status_ticker;
+DigitalOut status_led(LED1);
+void blinky() { status_led = !status_led; }
+
+
+// Entry point to the program
+int main() {
+    status_ticker.attach_us(blinky, 250000);
+
+    // Keep track of the main thread
+    mainThread = osThreadGetId();
+
+    // Sets the console baud-rate
+    output.baud(115200);
+
+    output.printf("Starting mbed Client example...\r\n");
+
+    mbed_trace_init();
+    mbed_trace_print_function_set(trace_printer);
+
+    NetworkInterface *network_interface = 0;
+    int connect_success = -1;
+#if MBED_CONF_APP_NETWORK_INTERFACE == WIFI
+    output.printf("\n\rUsing WiFi \r\n");
+    output.printf("\n\rConnecting to WiFi..\r\n");
+    connect_success = esp.connect(MBED_CONF_APP_WIFI_SSID, MBED_CONF_APP_WIFI_PASSWORD);
+    network_interface = &esp;
+#elif MBED_CONF_APP_NETWORK_INTERFACE == ETHERNET
+    output.printf("Using Ethernet\r\n");
+    connect_success = eth.connect();
+    network_interface = &eth;
+#endif
+#ifdef MESH
+    output.printf("Using Mesh\r\n");
+    output.printf("\n\rConnecting to Mesh..\r\n");
+    connect_success = mesh.connect();
+    network_interface = &mesh;
+#endif
+    if(connect_success == 0) {
+    output.printf("\n\rConnected to Network successfully\r\n");
+    } else {
+        output.printf("\n\rConnection to Network Failed %d! Exiting application....\r\n", connect_success);
+        return 0;
+    }
+    const char *ip_addr = network_interface->get_ip_address();
+    if (ip_addr) {
+        output.printf("IP address %s\r\n", ip_addr);
+    } else {
+        output.printf("No IP address\r\n");
+    }
+
+    // we create our button and LED resources
+    ButtonResource button_resource;
+    LedResource led_resource;
+
+    // On press of SW3 button on K64F board, example application
+    // will call unregister API towards mbed Device Connector
+    //unreg_button.fall(&mbed_client,&MbedClient::test_unregister);
+    unreg_button.fall(&unregister);
+
+    // Observation Button (SW2) press will send update of endpoint resource values to connector
+    obs_button.fall(&button_clicked);
+
+    // Create endpoint interface to manage register and unregister
+    mbed_client.create_interface(MBED_SERVER_ADDRESS, network_interface);
+
+    // Create Objects of varying types, see simpleclient.h for more details on implementation.
+    M2MSecurity* register_object = mbed_client.create_register_object(); // server object specifying connector info
+    M2MDevice*   device_object   = mbed_client.create_device_object();   // device resources object
+
+    // Create list of Objects to register
+    M2MObjectList object_list;
+
+    // Add objects to list
+    object_list.push_back(device_object);
+    object_list.push_back(button_resource.get_object());
+    object_list.push_back(led_resource.get_object());
+
+    // Set endpoint registration object
+    mbed_client.set_register_object(register_object);
+
+    // Register with mbed Device Connector
+    mbed_client.test_register(register_object, object_list);
+    registered = true;
+
+    while (true) {
+        updates.wait(25000);
+        if(registered) {
+            if(!clicked) {
+                mbed_client.test_update_register();
+            }
+        }else {
+            break;
+        }
+        if(clicked) {
+           clicked = false;
+            button_resource.handle_button_click();
+        }
+    }
+
+    mbed_client.test_unregister();
+    status_ticker.detach();
+}