David Walters / Mbed OS example-Ethernet-mbed-Cloud-connect

Mbed Cloud Connect for Ethernet Platforms

Fork of example-Ethernet-mbed-Cloud-connect by ST

main.cpp@4:53eff875f5d0, 2018-02-27 (annotated)

Committer:
MarceloSalazar
Date:
Tue Feb 27 17:36:27 2018 +0000
Revision:
4:53eff875f5d0
Parent:
3:b35ad81a2d6a
Child:
6:2d0e0866f2e7
Switch to Heap block device

Who changed what in which revision?

UserRevisionLine numberNew contents of line
MarceloSalazar 0:e9c53d5f59e3 1 // ----------------------------------------------------------------------------
MarceloSalazar 0:e9c53d5f59e3 2 // Copyright 2016-2017 ARM Ltd.
MarceloSalazar 0:e9c53d5f59e3 3 //
MarceloSalazar 0:e9c53d5f59e3 4 // SPDX-License-Identifier: Apache-2.0
MarceloSalazar 0:e9c53d5f59e3 5 //
MarceloSalazar 0:e9c53d5f59e3 6 // Licensed under the Apache License, Version 2.0 (the "License");
MarceloSalazar 0:e9c53d5f59e3 7 // you may not use this file except in compliance with the License.
MarceloSalazar 0:e9c53d5f59e3 8 // You may obtain a copy of the License at
MarceloSalazar 0:e9c53d5f59e3 9 //
MarceloSalazar 0:e9c53d5f59e3 10 // http://www.apache.org/licenses/LICENSE-2.0
MarceloSalazar 0:e9c53d5f59e3 11 //
MarceloSalazar 0:e9c53d5f59e3 12 // Unless required by applicable law or agreed to in writing, software
MarceloSalazar 0:e9c53d5f59e3 13 // distributed under the License is distributed on an "AS IS" BASIS,
MarceloSalazar 0:e9c53d5f59e3 14 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
MarceloSalazar 0:e9c53d5f59e3 15 // See the License for the specific language governing permissions and
MarceloSalazar 0:e9c53d5f59e3 16 // limitations under the License.
MarceloSalazar 0:e9c53d5f59e3 17 // ----------------------------------------------------------------------------
MarceloSalazar 0:e9c53d5f59e3 18
MarceloSalazar 0:e9c53d5f59e3 19 #include "mbed.h"
MarceloSalazar 0:e9c53d5f59e3 20 #include "mbed-trace/mbed_trace.h"
MarceloSalazar 0:e9c53d5f59e3 21 #include "mbed-trace-helper.h"
MarceloSalazar 0:e9c53d5f59e3 22 #include "simple-mbed-cloud-client.h"
MarceloSalazar 0:e9c53d5f59e3 23 #include "key-config-manager/kcm_status.h"
MarceloSalazar 0:e9c53d5f59e3 24 #include "key-config-manager/key_config_manager.h"
MarceloSalazar 4:53eff875f5d0 25 #include "HeapBlockDevice.h"
MarceloSalazar 4:53eff875f5d0 26 #include "BlockDevice.h"
MarceloSalazar 4:53eff875f5d0 27 #include "LittleFileSystem.h"
MarceloSalazar 0:e9c53d5f59e3 28 #include "EthernetInterface.h"
MarceloSalazar 0:e9c53d5f59e3 29
MarceloSalazar 0:e9c53d5f59e3 30 // Placeholder to hardware that trigger events (timer, button, etc)
MarceloSalazar 0:e9c53d5f59e3 31 Ticker timer;
MarceloSalazar 0:e9c53d5f59e3 32
MarceloSalazar 0:e9c53d5f59e3 33 // Placeholder for storage
MarceloSalazar 4:53eff875f5d0 34 HeapBlockDevice bd(1024*28, 128); // 28 KBytes - Block size: 128 bytes
MarceloSalazar 4:53eff875f5d0 35 LittleFileSystem fs("sd");
MarceloSalazar 0:e9c53d5f59e3 36
MarceloSalazar 0:e9c53d5f59e3 37 // Pointers to the resources that will be created in main_application().
MarceloSalazar 0:e9c53d5f59e3 38 static MbedCloudClientResource* pattern_ptr;
MarceloSalazar 0:e9c53d5f59e3 39
MarceloSalazar 0:e9c53d5f59e3 40 // Pointer to mbedClient, used for calling close function.
MarceloSalazar 0:e9c53d5f59e3 41 static SimpleMbedCloudClient *client;
MarceloSalazar 0:e9c53d5f59e3 42
MarceloSalazar 0:e9c53d5f59e3 43 static bool button_pressed = false;
MarceloSalazar 0:e9c53d5f59e3 44
MarceloSalazar 0:e9c53d5f59e3 45 void button_press() {
MarceloSalazar 0:e9c53d5f59e3 46 button_pressed = true;
MarceloSalazar 0:e9c53d5f59e3 47 }
MarceloSalazar 0:e9c53d5f59e3 48
MarceloSalazar 0:e9c53d5f59e3 49 void pattern_updated(const char *) {
MarceloSalazar 0:e9c53d5f59e3 50 printf("PUT received, new value: %s\n", pattern_ptr->get_value().c_str());
MarceloSalazar 0:e9c53d5f59e3 51 // Placeholder for PUT action
MarceloSalazar 0:e9c53d5f59e3 52 }
MarceloSalazar 0:e9c53d5f59e3 53
MarceloSalazar 0:e9c53d5f59e3 54 void blink_callback(void *) {
MarceloSalazar 0:e9c53d5f59e3 55 String pattern_str = pattern_ptr->get_value();
MarceloSalazar 0:e9c53d5f59e3 56 const char *pattern = pattern_str.c_str();
MarceloSalazar 0:e9c53d5f59e3 57 printf("POST received. LED pattern = %s\n", pattern);
MarceloSalazar 0:e9c53d5f59e3 58 // Placeholder for POST action
MarceloSalazar 0:e9c53d5f59e3 59 // The pattern is something like 500:200:500, so parse that.
MarceloSalazar 0:e9c53d5f59e3 60 }
MarceloSalazar 0:e9c53d5f59e3 61
MarceloSalazar 0:e9c53d5f59e3 62 void button_callback(const M2MBase& object, const NoticationDeliveryStatus status)
MarceloSalazar 0:e9c53d5f59e3 63 {
MarceloSalazar 0:e9c53d5f59e3 64 printf("Button notification. Callback: (%s)\n", object.uri_path());
MarceloSalazar 0:e9c53d5f59e3 65 // Placeholder for GET
MarceloSalazar 0:e9c53d5f59e3 66 }
MarceloSalazar 0:e9c53d5f59e3 67
MarceloSalazar 0:e9c53d5f59e3 68
MarceloSalazar 0:e9c53d5f59e3 69 int main(void)
MarceloSalazar 0:e9c53d5f59e3 70 {
MarceloSalazar 0:e9c53d5f59e3 71 // Requires DAPLink 245+ (https://github.com/ARMmbed/DAPLink/pull/364)
MarceloSalazar 0:e9c53d5f59e3 72 // Older versions: workaround to prevent possible deletion of credentials:
MarceloSalazar 0:e9c53d5f59e3 73 wait(2);
MarceloSalazar 0:e9c53d5f59e3 74
MarceloSalazar 0:e9c53d5f59e3 75 // Misc OS setup
MarceloSalazar 0:e9c53d5f59e3 76 srand(time(NULL));
MarceloSalazar 0:e9c53d5f59e3 77
MarceloSalazar 0:e9c53d5f59e3 78 // Placeholder for network
MarceloSalazar 0:e9c53d5f59e3 79 EthernetInterface net;
MarceloSalazar 0:e9c53d5f59e3 80
MarceloSalazar 0:e9c53d5f59e3 81 printf("Start Simple Mbed Cloud Client\n");
MarceloSalazar 0:e9c53d5f59e3 82
MarceloSalazar 4:53eff875f5d0 83 // Initialize Block Device
MarceloSalazar 4:53eff875f5d0 84 int status = bd.init();
MarceloSalazar 0:e9c53d5f59e3 85 if (status != BD_ERROR_OK) {
MarceloSalazar 4:53eff875f5d0 86 printf("Failed to init Block Device\r\n");
MarceloSalazar 0:e9c53d5f59e3 87 return -1;
MarceloSalazar 0:e9c53d5f59e3 88 }
MarceloSalazar 0:e9c53d5f59e3 89
MarceloSalazar 0:e9c53d5f59e3 90 // Mount the file system (reformatting on failure)
MarceloSalazar 4:53eff875f5d0 91 status = fs.mount(&bd);
MarceloSalazar 0:e9c53d5f59e3 92 if (status) {
MarceloSalazar 4:53eff875f5d0 93 printf("Failed to mount filesystem, reformatting...\r\n");
MarceloSalazar 4:53eff875f5d0 94 status = fs.reformat(&bd);
MarceloSalazar 0:e9c53d5f59e3 95 if (status) {
MarceloSalazar 4:53eff875f5d0 96 printf("Failed to reformat filesystem\r\n");
MarceloSalazar 0:e9c53d5f59e3 97 return -1;
MarceloSalazar 0:e9c53d5f59e3 98 } else {
MarceloSalazar 0:e9c53d5f59e3 99 printf("Reformat and mount complete\r\n");
MarceloSalazar 0:e9c53d5f59e3 100 }
MarceloSalazar 0:e9c53d5f59e3 101 }
MarceloSalazar 0:e9c53d5f59e3 102
MarceloSalazar 0:e9c53d5f59e3 103 printf("Connecting to the network using Ethernet...\n");
MarceloSalazar 0:e9c53d5f59e3 104
MarceloSalazar 0:e9c53d5f59e3 105 status = net.connect();
MarceloSalazar 0:e9c53d5f59e3 106 if (status) {
MarceloSalazar 0:e9c53d5f59e3 107 printf("Connection to Network Failed %d!\n", status);
MarceloSalazar 0:e9c53d5f59e3 108 return -1;
MarceloSalazar 0:e9c53d5f59e3 109 } else {
MarceloSalazar 0:e9c53d5f59e3 110 const char *ip_addr = net.get_ip_address();
MarceloSalazar 0:e9c53d5f59e3 111 printf("Connected successfully\n");
MarceloSalazar 0:e9c53d5f59e3 112 printf("IP address %s\n", ip_addr);
MarceloSalazar 0:e9c53d5f59e3 113 }
MarceloSalazar 0:e9c53d5f59e3 114
MarceloSalazar 0:e9c53d5f59e3 115 SimpleMbedCloudClient mbedClient(&net);
MarceloSalazar 0:e9c53d5f59e3 116 // Save pointer to mbedClient so that other functions can access it.
MarceloSalazar 0:e9c53d5f59e3 117 client = &mbedClient;
MarceloSalazar 0:e9c53d5f59e3 118
MarceloSalazar 0:e9c53d5f59e3 119 status = mbedClient.init();
MarceloSalazar 0:e9c53d5f59e3 120 if (status) {
MarceloSalazar 0:e9c53d5f59e3 121 return -1;
MarceloSalazar 0:e9c53d5f59e3 122 }
MarceloSalazar 0:e9c53d5f59e3 123
MarceloSalazar 0:e9c53d5f59e3 124 printf("Client initialized\r\n");
MarceloSalazar 0:e9c53d5f59e3 125
MarceloSalazar 0:e9c53d5f59e3 126 // Mbed Cloud Client resource setup
MarceloSalazar 0:e9c53d5f59e3 127 MbedCloudClientResource *button = mbedClient.create_resource("3200/0/5501", "button_resource");
MarceloSalazar 0:e9c53d5f59e3 128 button->set_value("0");
MarceloSalazar 0:e9c53d5f59e3 129 button->methods(M2MMethod::GET);
MarceloSalazar 0:e9c53d5f59e3 130 button->observable(true);
MarceloSalazar 0:e9c53d5f59e3 131 button->attach_notification_callback(button_callback);
MarceloSalazar 0:e9c53d5f59e3 132
MarceloSalazar 0:e9c53d5f59e3 133 MbedCloudClientResource *pattern = mbedClient.create_resource("3201/0/5853", "pattern_resource");
MarceloSalazar 0:e9c53d5f59e3 134 pattern->set_value("500:500:500:500");
MarceloSalazar 0:e9c53d5f59e3 135 pattern->methods(M2MMethod::GET | M2MMethod::PUT);
MarceloSalazar 0:e9c53d5f59e3 136 pattern->attach_put_callback(pattern_updated);
MarceloSalazar 0:e9c53d5f59e3 137 pattern_ptr = pattern;
MarceloSalazar 0:e9c53d5f59e3 138
MarceloSalazar 0:e9c53d5f59e3 139 MbedCloudClientResource *blink = mbedClient.create_resource("3201/0/5850", "blink_resource");
MarceloSalazar 0:e9c53d5f59e3 140 blink->methods(M2MMethod::POST);
MarceloSalazar 0:e9c53d5f59e3 141 blink->attach_post_callback(blink_callback);
MarceloSalazar 0:e9c53d5f59e3 142
MarceloSalazar 0:e9c53d5f59e3 143 mbedClient.register_and_connect();
MarceloSalazar 0:e9c53d5f59e3 144
MarceloSalazar 0:e9c53d5f59e3 145 // Wait for client to finish registering
MarceloSalazar 0:e9c53d5f59e3 146 while (!mbedClient.is_client_registered()) {
MarceloSalazar 0:e9c53d5f59e3 147 wait_ms(100);
MarceloSalazar 0:e9c53d5f59e3 148 }
MarceloSalazar 0:e9c53d5f59e3 149
MarceloSalazar 0:e9c53d5f59e3 150 // Placeholder for callback to update local resource when GET comes.
MarceloSalazar 0:e9c53d5f59e3 151 timer.attach(&button_press, 5.0);
MarceloSalazar 0:e9c53d5f59e3 152
MarceloSalazar 0:e9c53d5f59e3 153 // Check if client is registering or registered, if true sleep and repeat.
MarceloSalazar 0:e9c53d5f59e3 154 while (mbedClient.is_register_called()) {
MarceloSalazar 0:e9c53d5f59e3 155 static int button_count = 0;
MarceloSalazar 0:e9c53d5f59e3 156 wait_ms(100);
MarceloSalazar 0:e9c53d5f59e3 157
MarceloSalazar 0:e9c53d5f59e3 158 if (button_pressed) {
MarceloSalazar 0:e9c53d5f59e3 159 button_pressed = false;
MarceloSalazar 0:e9c53d5f59e3 160 printf("Simulated button clicked %d times\r\n", ++button_count);
MarceloSalazar 0:e9c53d5f59e3 161 button->set_value(button_count);
MarceloSalazar 0:e9c53d5f59e3 162 }
MarceloSalazar 0:e9c53d5f59e3 163 }
MarceloSalazar 0:e9c53d5f59e3 164
MarceloSalazar 0:e9c53d5f59e3 165 // Client unregistered, exit program.
MarceloSalazar 0:e9c53d5f59e3 166 return 0;
MarceloSalazar 0:e9c53d5f59e3 167 }