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@11:bb67b71b6c9d, 2018-05-18 (annotated)

Committer:
davwal04@E108444.Emea.Arm.com
Date:
Fri May 18 15:32:36 2018 +0100
Branch:
update-1.3.0
Revision:
11:bb67b71b6c9d
Parent:
10:8da380655d09 
Changing Stack size to 5000, enabling NUCLEO_F767ZI and NUCLEO_F746ZG

Who changed what in which revision?

UserRevisionLine numberNew contents of line
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 1 // ----------------------------------------------------------------------------
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 2 // Copyright 2016-2018 ARM Ltd.
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 3 //
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 4 // SPDX-License-Identifier: Apache-2.0
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 5 //
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 6 // Licensed under the Apache License, Version 2.0 (the "License");
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 7 // you may not use this file except in compliance with the License.
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 8 // You may obtain a copy of the License at
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 9 //
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 10 // http://www.apache.org/licenses/LICENSE-2.0
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 11 //
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 12 // Unless required by applicable law or agreed to in writing, software
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 13 // distributed under the License is distributed on an "AS IS" BASIS,
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 14 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 15 // See the License for the specific language governing permissions and
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 16 // limitations under the License.
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 17 // ----------------------------------------------------------------------------
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 18
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 19 #include "mbed.h"
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 20 #include "simple-mbed-cloud-client.h"
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 21 #include "SDBlockDevice.h"
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 22 #include "FATFileSystem.h"
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 23 #include "EthernetInterface.h"
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 24
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 25 // An event queue is a very useful structure to debounce information between contexts (e.g. ISR and normal threads)
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 26 // This is great because things such as network operations are illegal in ISR, so updating a resource in a button's fall() function is not allowed
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 27 EventQueue eventQueue;
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 28
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 29 // Storage implementation definition, currently using SDBlockDevice (SPI flash, DataFlash, and internal flash are also available)
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 30 SDBlockDevice bd(MBED_CONF_APP_SPI_MOSI, MBED_CONF_APP_SPI_MISO, MBED_CONF_APP_SPI_CLK, MBED_CONF_APP_SPI_CS);
davwal04@E108444.Emea.Arm.com 8:f4f5b7622f8d 31 FATFileSystem fs("sd", &bd);
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 32
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 33 // Declaring pointers for access to Mbed Cloud Client resources outside of main()
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 34 MbedCloudClientResource *button_res;
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 35 MbedCloudClientResource *pattern_res;
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 36
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 37 // This function gets triggered by the timer. It's easy to replace it by an InterruptIn and fall() mode on a real button
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 38 void fake_button_press() {
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 39 int v = button_res->get_value_int() + 1;
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 40
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 41 button_res->set_value(v);
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 42
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 43 printf("Simulated button clicked %d times\n", v);
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 44 }
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 45
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 46 /**
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 47 * PUT handler
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 48 * @param resource The resource that triggered the callback
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 49 * @param newValue Updated value for the resource
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 50 */
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 51 void pattern_updated(MbedCloudClientResource *resource, m2m::String newValue) {
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 52 printf("PUT received, new value: %s\n", newValue.c_str());
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 53 }
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 54
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 55 /**
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 56 * POST handler
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 57 * @param resource The resource that triggered the callback
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 58 * @param buffer If a body was passed to the POST function, this contains the data.
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 59 * Note that the buffer is deallocated after leaving this function, so copy it if you need it longer.
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 60 * @param size Size of the body
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 61 */
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 62 void blink_callback(MbedCloudClientResource *resource, const uint8_t *buffer, uint16_t size) {
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 63 printf("POST received. Going to blink LED pattern: %s\n", pattern_res->get_value().c_str());
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 64
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 65 static DigitalOut augmentedLed(LED1); // LED that is used for blinking the pattern
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 66
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 67 // Parse the pattern string, and toggle the LED in that pattern
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 68 string s = std::string(pattern_res->get_value().c_str());
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 69 size_t i = 0;
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 70 size_t pos = s.find(':');
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 71 while (pos != string::npos) {
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 72 wait_ms(atoi(s.substr(i, pos - i).c_str()));
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 73 augmentedLed = !augmentedLed;
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 74
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 75 i = ++pos;
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 76 pos = s.find(':', pos);
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 77
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 78 if (pos == string::npos) {
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 79 wait_ms(atoi(s.substr(i, s.length()).c_str()));
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 80 augmentedLed = !augmentedLed;
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 81 }
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 82 }
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 83 }
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 84
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 85 /**
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 86 * Notification callback handler
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 87 * @param resource The resource that triggered the callback
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 88 * @param status The delivery status of the notification
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 89 */
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 90 void button_callback(MbedCloudClientResource *resource, const NoticationDeliveryStatus status) {
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 91 printf("Button notification, status %s (%d)\n", MbedCloudClientResource::delivery_status_to_string(status), status);
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 92 }
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 93
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 94 /**
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 95 * Registration callback handler
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 96 * @param endpoint Information about the registered endpoint such as the name (so you can find it back in portal)
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 97 */
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 98 void registered(const ConnectorClientEndpointInfo *endpoint) {
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 99 printf("Connected to Mbed Cloud. Endpoint Name: %s\n", endpoint->internal_endpoint_name.c_str());
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 100 }
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 101
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 102 int main(void) {
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 103 printf("Starting Simple Mbed Cloud Client example\n");
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 104 printf("Connecting to the network using Ethernet...\n");
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 105
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 106 // Connect to the internet (DHCP is expected to be on)
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 107 EthernetInterface net;
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 108 nsapi_error_t status = net.connect();
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 109
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 110 if (status != 0) {
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 111 printf("Connecting to the network failed %d!\n", status);
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 112 return -1;
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 113 }
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 114
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 115 printf("Connected to the network successfully. IP address: %s\n", net.get_ip_address());
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 116
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 117 // SimpleMbedCloudClient handles registering over LwM2M to Mbed Cloud
davwal04@E108444.Emea.Arm.com 10:8da380655d09 118 SimpleMbedCloudClient client(&net, &bd, &fs);
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 119 int client_status = client.init();
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 120 if (client_status != 0) {
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 121 printf("Initializing Mbed Cloud Client failed (%d)\n", client_status);
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 122 return -1;
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 123 }
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 124
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 125 // Creating resources, which can be written or read from the cloud
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 126 button_res = client.create_resource("3200/0/5501", "button_count");
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 127 button_res->set_value(0);
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 128 button_res->methods(M2MMethod::GET);
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 129 button_res->observable(true);
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 130 button_res->attach_notification_callback(button_callback);
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 131
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 132 pattern_res = client.create_resource("3201/0/5853", "blink_pattern");
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 133 pattern_res->set_value("500:500:500:500:500:500:500:500");
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 134 pattern_res->methods(M2MMethod::GET | M2MMethod::PUT);
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 135 pattern_res->attach_put_callback(pattern_updated);
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 136
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 137 MbedCloudClientResource *blink_res = client.create_resource("3201/0/5850", "blink_action");
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 138 blink_res->methods(M2MMethod::POST);
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 139 blink_res->attach_post_callback(blink_callback);
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 140
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 141 printf("Initialized Mbed Cloud Client. Registering...\n");
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 142
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 143 // Callback that fires when registering is complete
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 144 client.on_registered(&registered);
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 145
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 146 // Register with Mbed Cloud
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 147 client.register_and_connect();
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 148
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 149 // Placeholder for callback to update local resource when GET comes.
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 150 // The timer fires on an interrupt context, but debounces it to the eventqueue, so it's safe to do network operations
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 151 Ticker timer;
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 152 timer.attach(eventQueue.event(&fake_button_press), 5.0);
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 153
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 154 // You can easily run the eventQueue in a separate thread if required
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 155 eventQueue.dispatch_forever();
davwal04@E108444.Emea.Arm.com 6:2d0e0866f2e7 156 }