Qasim Zia / Mbed OS pelion-example-common-odinw2

pelion-example-common-odinw2

main.cpp@1:74e24f935f2f, 2019-10-04 (annotated)

Committer:
qasimublox
Date:
Fri Oct 04 13:27:22 2019 +0000
Revision:
1:74e24f935f2f
Parent:
0:7e9105051efa 
C030_U201 support removed

Who changed what in which revision?

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fahimalavi 0:7e9105051efa 1 // ----------------------------------------------------------------------------
fahimalavi 0:7e9105051efa 2 // Copyright 2016-2018 ARM Ltd.
fahimalavi 0:7e9105051efa 3 //
fahimalavi 0:7e9105051efa 4 // SPDX-License-Identifier: Apache-2.0
fahimalavi 0:7e9105051efa 5 //
fahimalavi 0:7e9105051efa 6 // Licensed under the Apache License, Version 2.0 (the "License");
fahimalavi 0:7e9105051efa 7 // you may not use this file except in compliance with the License.
fahimalavi 0:7e9105051efa 8 // You may obtain a copy of the License at
fahimalavi 0:7e9105051efa 9 //
fahimalavi 0:7e9105051efa 10 // http://www.apache.org/licenses/LICENSE-2.0
fahimalavi 0:7e9105051efa 11 //
fahimalavi 0:7e9105051efa 12 // Unless required by applicable law or agreed to in writing, software
fahimalavi 0:7e9105051efa 13 // distributed under the License is distributed on an "AS IS" BASIS,
fahimalavi 0:7e9105051efa 14 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
fahimalavi 0:7e9105051efa 15 // See the License for the specific language governing permissions and
fahimalavi 0:7e9105051efa 16 // limitations under the License.
fahimalavi 0:7e9105051efa 17 // ----------------------------------------------------------------------------
fahimalavi 0:7e9105051efa 18 #ifndef MBED_TEST_MODE
fahimalavi 0:7e9105051efa 19
fahimalavi 0:7e9105051efa 20 #include "mbed.h"
fahimalavi 0:7e9105051efa 21 #include "simple-mbed-cloud-client.h"
fahimalavi 0:7e9105051efa 22 #include "FATFileSystem.h"
fahimalavi 0:7e9105051efa 23 #include "LittleFileSystem.h"
fahimalavi 0:7e9105051efa 24
fahimalavi 0:7e9105051efa 25 // Default network interface object. Don't forget to change the WiFi SSID/password in mbed_app.json if you're using WiFi.
fahimalavi 0:7e9105051efa 26 NetworkInterface *net = NetworkInterface::get_default_instance();
fahimalavi 0:7e9105051efa 27
fahimalavi 0:7e9105051efa 28 // Default block device available on the target board
fahimalavi 0:7e9105051efa 29 BlockDevice *bd = BlockDevice::get_default_instance();
fahimalavi 0:7e9105051efa 30
fahimalavi 0:7e9105051efa 31 #if COMPONENT_SD || COMPONENT_NUSD
fahimalavi 0:7e9105051efa 32 // Use FATFileSystem for SD card type blockdevices
fahimalavi 0:7e9105051efa 33 FATFileSystem fs("fs");
fahimalavi 0:7e9105051efa 34 #else
fahimalavi 0:7e9105051efa 35 // Use LittleFileSystem for non-SD block devices to enable wear leveling and other functions
fahimalavi 0:7e9105051efa 36 LittleFileSystem fs("fs");
fahimalavi 0:7e9105051efa 37 #endif
fahimalavi 0:7e9105051efa 38
fahimalavi 0:7e9105051efa 39 // Default User button for GET example
fahimalavi 0:7e9105051efa 40 InterruptIn button(BUTTON1);
fahimalavi 0:7e9105051efa 41 // Default LED to use for PUT/POST example
fahimalavi 0:7e9105051efa 42 DigitalOut led(LED1, 0);
fahimalavi 0:7e9105051efa 43
fahimalavi 0:7e9105051efa 44 // Declaring pointers for access to Pelion Device Management Client resources outside of main()
fahimalavi 0:7e9105051efa 45 MbedCloudClientResource *res_button;
fahimalavi 0:7e9105051efa 46 MbedCloudClientResource *res_led;
fahimalavi 0:7e9105051efa 47 MbedCloudClientResource *res_post;
fahimalavi 0:7e9105051efa 48
fahimalavi 0:7e9105051efa 49 // An event queue is a very useful structure to debounce information between contexts (e.g. ISR and normal threads)
fahimalavi 0:7e9105051efa 50 // 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
fahimalavi 0:7e9105051efa 51 EventQueue eventQueue;
fahimalavi 0:7e9105051efa 52
fahimalavi 0:7e9105051efa 53 // When the device is registered, this variable will be used to access various useful information, like device ID etc.
fahimalavi 0:7e9105051efa 54 static const ConnectorClientEndpointInfo* endpointInfo;
fahimalavi 0:7e9105051efa 55
fahimalavi 0:7e9105051efa 56 /**
fahimalavi 0:7e9105051efa 57 * PUT handler - sets the value of the built-in LED
fahimalavi 0:7e9105051efa 58 * @param resource The resource that triggered the callback
fahimalavi 0:7e9105051efa 59 * @param newValue Updated value for the resource
fahimalavi 0:7e9105051efa 60 */
fahimalavi 0:7e9105051efa 61 void put_callback(MbedCloudClientResource *resource, m2m::String newValue) {
fahimalavi 0:7e9105051efa 62 printf("*** PUT received, new value: %s \n", newValue.c_str());
fahimalavi 0:7e9105051efa 63 led = atoi(newValue.c_str());
fahimalavi 0:7e9105051efa 64 }
fahimalavi 0:7e9105051efa 65
fahimalavi 0:7e9105051efa 66 /**
fahimalavi 0:7e9105051efa 67 * POST handler - prints the content of the payload
fahimalavi 0:7e9105051efa 68 * @param resource The resource that triggered the callback
fahimalavi 0:7e9105051efa 69 * @param buffer If a body was passed to the POST function, this contains the data.
fahimalavi 0:7e9105051efa 70 * Note that the buffer is deallocated after leaving this function, so copy it if you need it longer.
fahimalavi 0:7e9105051efa 71 * @param size Size of the body
fahimalavi 0:7e9105051efa 72 */
fahimalavi 0:7e9105051efa 73 void post_callback(MbedCloudClientResource *resource, const uint8_t *buffer, uint16_t size) {
fahimalavi 0:7e9105051efa 74 printf("*** POST received (length %u). Payload: ", size);
fahimalavi 0:7e9105051efa 75 for (size_t ix = 0; ix < size; ix++) {
fahimalavi 0:7e9105051efa 76 printf("%02x ", buffer[ix]);
fahimalavi 0:7e9105051efa 77 }
fahimalavi 0:7e9105051efa 78 printf("\n");
fahimalavi 0:7e9105051efa 79 }
fahimalavi 0:7e9105051efa 80
fahimalavi 0:7e9105051efa 81 /**
fahimalavi 0:7e9105051efa 82 * Button handler
fahimalavi 0:7e9105051efa 83 * This function will be triggered either by a physical button press or by a ticker every 5 seconds (see below)
fahimalavi 0:7e9105051efa 84 */
fahimalavi 0:7e9105051efa 85 void button_press() {
fahimalavi 0:7e9105051efa 86 int v = res_button->get_value_int() + 1;
fahimalavi 0:7e9105051efa 87 res_button->set_value(v);
fahimalavi 0:7e9105051efa 88 printf("*** Button clicked %d times \n", v);
fahimalavi 0:7e9105051efa 89 }
fahimalavi 0:7e9105051efa 90
fahimalavi 0:7e9105051efa 91 /**
fahimalavi 0:7e9105051efa 92 * Notification callback handler
fahimalavi 0:7e9105051efa 93 * @param resource The resource that triggered the callback
fahimalavi 0:7e9105051efa 94 * @param status The delivery status of the notification
fahimalavi 0:7e9105051efa 95 */
fahimalavi 0:7e9105051efa 96 void button_callback(MbedCloudClientResource *resource, const NoticationDeliveryStatus status) {
fahimalavi 0:7e9105051efa 97 printf("*** Button notification, status %s (%d) \n", MbedCloudClientResource::delivery_status_to_string(status), status);
fahimalavi 0:7e9105051efa 98 }
fahimalavi 0:7e9105051efa 99
fahimalavi 0:7e9105051efa 100 /**
fahimalavi 0:7e9105051efa 101 * Registration callback handler
fahimalavi 0:7e9105051efa 102 * @param endpoint Information about the registered endpoint such as the name (so you can find it back in portal)
fahimalavi 0:7e9105051efa 103 */
fahimalavi 0:7e9105051efa 104 void registered(const ConnectorClientEndpointInfo *endpoint) {
fahimalavi 0:7e9105051efa 105 printf("Registered to Pelion Device Management. Endpoint Name: %s\n", endpoint->internal_endpoint_name.c_str());
fahimalavi 0:7e9105051efa 106 endpointInfo = endpoint;
fahimalavi 0:7e9105051efa 107 }
fahimalavi 0:7e9105051efa 108
fahimalavi 0:7e9105051efa 109 int main(void) {
fahimalavi 0:7e9105051efa 110 printf("\nStarting Simple Pelion Device Management Client example\n");
fahimalavi 0:7e9105051efa 111
fahimalavi 0:7e9105051efa 112 int storage_status = fs.mount(bd);
fahimalavi 0:7e9105051efa 113 if (storage_status != 0) {
fahimalavi 0:7e9105051efa 114 printf("Storage mounting failed.\n");
fahimalavi 0:7e9105051efa 115 }
fahimalavi 0:7e9105051efa 116 // If the User button is pressed ons start, then format storage.
fahimalavi 0:7e9105051efa 117 bool btn_pressed = (button.read() == MBED_CONF_APP_BUTTON_PRESSED_STATE);
fahimalavi 0:7e9105051efa 118 if (btn_pressed) {
fahimalavi 0:7e9105051efa 119 printf("User button is pushed on start...\n");
fahimalavi 0:7e9105051efa 120 }
fahimalavi 0:7e9105051efa 121
fahimalavi 0:7e9105051efa 122 if (storage_status || btn_pressed) {
fahimalavi 0:7e9105051efa 123 printf("Formatting the storage...\n");
fahimalavi 0:7e9105051efa 124 int storage_status = StorageHelper::format(&fs, bd);
fahimalavi 0:7e9105051efa 125 if (storage_status != 0) {
fahimalavi 0:7e9105051efa 126 printf("ERROR: Failed to reformat the storage (%d).\n", storage_status);
fahimalavi 0:7e9105051efa 127 }
fahimalavi 0:7e9105051efa 128 } else {
fahimalavi 0:7e9105051efa 129 printf("You can hold the user button during boot to format the storage and change the device identity.\n");
fahimalavi 0:7e9105051efa 130 }
fahimalavi 0:7e9105051efa 131
fahimalavi 0:7e9105051efa 132 // Connect to the Internet (DHCP is expected to be on)
fahimalavi 0:7e9105051efa 133 printf("Connecting to the network using the default network interface...\n");
fahimalavi 0:7e9105051efa 134 net = NetworkInterface::get_default_instance();
fahimalavi 0:7e9105051efa 135
fahimalavi 0:7e9105051efa 136 nsapi_error_t net_status = NSAPI_ERROR_NO_CONNECTION;
fahimalavi 0:7e9105051efa 137 while ((net_status = net->connect()) != NSAPI_ERROR_OK) {
fahimalavi 0:7e9105051efa 138 printf("Unable to connect to network (%d). Retrying...\n", net_status);
fahimalavi 0:7e9105051efa 139 }
fahimalavi 0:7e9105051efa 140
fahimalavi 0:7e9105051efa 141 printf("Connected to the network successfully. IP address: %s\n", net->get_ip_address());
fahimalavi 0:7e9105051efa 142
fahimalavi 0:7e9105051efa 143 printf("Initializing Pelion Device Management Client...\n");
fahimalavi 0:7e9105051efa 144
fahimalavi 0:7e9105051efa 145 // SimpleMbedCloudClient handles registering over LwM2M to Pelion Device Management
fahimalavi 0:7e9105051efa 146 SimpleMbedCloudClient client(net, bd, &fs);
fahimalavi 0:7e9105051efa 147 int client_status = client.init();
fahimalavi 0:7e9105051efa 148 if (client_status != 0) {
fahimalavi 0:7e9105051efa 149 printf("Pelion Client initialization failed (%d)\n", client_status);
fahimalavi 0:7e9105051efa 150 return -1;
fahimalavi 0:7e9105051efa 151 }
fahimalavi 0:7e9105051efa 152
fahimalavi 0:7e9105051efa 153 // Creating resources, which can be written or read from the cloud
fahimalavi 0:7e9105051efa 154 res_button = client.create_resource("3200/0/5501", "Button Count");
fahimalavi 0:7e9105051efa 155 res_button->set_value(0);
fahimalavi 0:7e9105051efa 156 res_button->methods(M2MMethod::GET);
fahimalavi 0:7e9105051efa 157 res_button->observable(true);
fahimalavi 0:7e9105051efa 158 res_button->attach_notification_callback(button_callback);
fahimalavi 0:7e9105051efa 159
fahimalavi 0:7e9105051efa 160 res_led = client.create_resource("3201/0/5853", "LED State");
fahimalavi 0:7e9105051efa 161 res_led->set_value(led.read());
fahimalavi 0:7e9105051efa 162 res_led->methods(M2MMethod::GET | M2MMethod::PUT);
fahimalavi 0:7e9105051efa 163 res_led->attach_put_callback(put_callback);
fahimalavi 0:7e9105051efa 164
fahimalavi 0:7e9105051efa 165 res_post = client.create_resource("3300/0/5605", "Execute Function");
fahimalavi 0:7e9105051efa 166 res_post->methods(M2MMethod::POST);
fahimalavi 0:7e9105051efa 167 res_post->attach_post_callback(post_callback);
fahimalavi 0:7e9105051efa 168
fahimalavi 0:7e9105051efa 169 printf("Initialized Pelion Device Management Client. Registering...\n");
fahimalavi 0:7e9105051efa 170
fahimalavi 0:7e9105051efa 171 // Callback that fires when registering is complete
fahimalavi 0:7e9105051efa 172 client.on_registered(&registered);
fahimalavi 0:7e9105051efa 173
fahimalavi 0:7e9105051efa 174 // Register with Pelion DM
fahimalavi 0:7e9105051efa 175 client.register_and_connect();
fahimalavi 0:7e9105051efa 176
fahimalavi 0:7e9105051efa 177 // The button fires on an interrupt context, but debounces it to the eventqueue, so it's safe to do network operations
fahimalavi 0:7e9105051efa 178 button.fall(eventQueue.event(&button_press));
fahimalavi 0:7e9105051efa 179 printf("Press the user button to increment the LwM2M resource value...\n");
fahimalavi 0:7e9105051efa 180
fahimalavi 0:7e9105051efa 181 // You can easily run the eventQueue in a separate thread if required
fahimalavi 0:7e9105051efa 182 eventQueue.dispatch_forever();
fahimalavi 0:7e9105051efa 183 }
fahimalavi 0:7e9105051efa 184
fahimalavi 0:7e9105051efa 185 #endif /* MBED_TEST_MODE */