Qasim Zia / Mbed OS pelion-example-common

pelion-example-common

Dependencies:   ublox-at-cellular-interface ublox-cellular-base

main.cpp@6:2fb5057c0e42, 2019-02-20 (annotated)

Committer:
screamer
Date:
Wed Feb 20 15:33:02 2019 +0000
Revision:
6:2fb5057c0e42
Parent:
3:3b2db67b206e
Child:
7:230af466efc4
Updated to Mbed OS 5.11.4 and SMCC 2.1.1.3

Who changed what in which revision?

UserRevisionLine numberNew contents of line
screamer 0:a076a1bbe630 1 // ----------------------------------------------------------------------------
screamer 0:a076a1bbe630 2 // Copyright 2016-2018 ARM Ltd.
screamer 0:a076a1bbe630 3 //
screamer 0:a076a1bbe630 4 // SPDX-License-Identifier: Apache-2.0
screamer 0:a076a1bbe630 5 //
screamer 0:a076a1bbe630 6 // Licensed under the Apache License, Version 2.0 (the "License");
screamer 0:a076a1bbe630 7 // you may not use this file except in compliance with the License.
screamer 0:a076a1bbe630 8 // You may obtain a copy of the License at
screamer 0:a076a1bbe630 9 //
screamer 0:a076a1bbe630 10 // http://www.apache.org/licenses/LICENSE-2.0
screamer 0:a076a1bbe630 11 //
screamer 0:a076a1bbe630 12 // Unless required by applicable law or agreed to in writing, software
screamer 0:a076a1bbe630 13 // distributed under the License is distributed on an "AS IS" BASIS,
screamer 0:a076a1bbe630 14 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
screamer 0:a076a1bbe630 15 // See the License for the specific language governing permissions and
screamer 0:a076a1bbe630 16 // limitations under the License.
screamer 0:a076a1bbe630 17 // ----------------------------------------------------------------------------
screamer 0:a076a1bbe630 18 #ifndef MBED_TEST_MODE
screamer 0:a076a1bbe630 19
screamer 0:a076a1bbe630 20 #include "mbed.h"
screamer 0:a076a1bbe630 21 #include "simple-mbed-cloud-client.h"
screamer 0:a076a1bbe630 22 #include "FATFileSystem.h"
screamer 0:a076a1bbe630 23 #include "LittleFileSystem.h"
screamer 0:a076a1bbe630 24
screamer 3:3b2db67b206e 25 // Default network interface object. Don't forget to change the WiFi SSID/password in mbed_app.json if you're using WiFi.
screamer 0:a076a1bbe630 26 NetworkInterface *net = NetworkInterface::get_default_instance();
screamer 0:a076a1bbe630 27
screamer 3:3b2db67b206e 28 // Default block device available on the target board
screamer 0:a076a1bbe630 29 BlockDevice *bd = BlockDevice::get_default_instance();
screamer 3:3b2db67b206e 30
screamer 3:3b2db67b206e 31 #if COMPONENT_SD || COMPONENT_NUSD
screamer 3:3b2db67b206e 32 // Use FATFileSystem for SD card type blockdevices
screamer 3:3b2db67b206e 33 FATFileSystem fs("fs", bd);
screamer 3:3b2db67b206e 34 #else
screamer 3:3b2db67b206e 35 // Use LittleFileSystem for non-SD block devices to enable wear leveling and other functions
screamer 3:3b2db67b206e 36 LittleFileSystem fs("fs", bd);
screamer 3:3b2db67b206e 37 #endif
screamer 3:3b2db67b206e 38
screamer 6:2fb5057c0e42 39 #if USE_BUTTON == 1
screamer 6:2fb5057c0e42 40 InterruptIn button(BUTTON1);
screamer 6:2fb5057c0e42 41 #endif /* USE_BUTTON */
screamer 0:a076a1bbe630 42
screamer 0:a076a1bbe630 43 // Default LED to use for PUT/POST example
screamer 0:a076a1bbe630 44 DigitalOut led(LED1);
screamer 1:a50c1e691ff1 45
screamer 6:2fb5057c0e42 46 // Declaring pointers for access to Pelion Device Management Client resources outside of main()
screamer 6:2fb5057c0e42 47 MbedCloudClientResource *button_res;
screamer 6:2fb5057c0e42 48 MbedCloudClientResource *led_res;
screamer 6:2fb5057c0e42 49 MbedCloudClientResource *post_res;
screamer 0:a076a1bbe630 50
screamer 6:2fb5057c0e42 51 // An event queue is a very useful structure to debounce information between contexts (e.g. ISR and normal threads)
screamer 6:2fb5057c0e42 52 // 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
screamer 6:2fb5057c0e42 53 EventQueue eventQueue;
screamer 0:a076a1bbe630 54
screamer 0:a076a1bbe630 55 /**
screamer 6:2fb5057c0e42 56 * PUT handler - sets the value of the built-in LED
screamer 0:a076a1bbe630 57 * @param resource The resource that triggered the callback
screamer 0:a076a1bbe630 58 * @param newValue Updated value for the resource
screamer 0:a076a1bbe630 59 */
screamer 6:2fb5057c0e42 60 void put_callback(MbedCloudClientResource *resource, m2m::String newValue) {
screamer 3:3b2db67b206e 61 printf("PUT received. New value: %s\n", newValue.c_str());
screamer 0:a076a1bbe630 62 led = atoi(newValue.c_str());
screamer 0:a076a1bbe630 63 }
screamer 0:a076a1bbe630 64
screamer 0:a076a1bbe630 65 /**
screamer 6:2fb5057c0e42 66 * POST handler - prints the content of the payload
screamer 0:a076a1bbe630 67 * @param resource The resource that triggered the callback
screamer 0:a076a1bbe630 68 * @param buffer If a body was passed to the POST function, this contains the data.
screamer 0:a076a1bbe630 69 * Note that the buffer is deallocated after leaving this function, so copy it if you need it longer.
screamer 0:a076a1bbe630 70 * @param size Size of the body
screamer 0:a076a1bbe630 71 */
screamer 6:2fb5057c0e42 72 void post_callback(MbedCloudClientResource *resource, const uint8_t *buffer, uint16_t size) {
screamer 6:2fb5057c0e42 73 printf("POST received (length %u). Payload: ", size);
screamer 6:2fb5057c0e42 74 for (size_t ix = 0; ix < size; ix++) {
screamer 6:2fb5057c0e42 75 printf("%02x ", buffer[ix]);
screamer 6:2fb5057c0e42 76 }
screamer 6:2fb5057c0e42 77 printf("\n");
screamer 0:a076a1bbe630 78 }
screamer 0:a076a1bbe630 79
screamer 0:a076a1bbe630 80 /**
screamer 6:2fb5057c0e42 81 * Button handler
screamer 6:2fb5057c0e42 82 * This function will be triggered either by a physical button press or by a ticker every 5 seconds (see below)
screamer 0:a076a1bbe630 83 */
screamer 0:a076a1bbe630 84 void button_press() {
screamer 6:2fb5057c0e42 85 int v = button_res->get_value_int() + 1;
screamer 6:2fb5057c0e42 86 button_res->set_value(v);
screamer 0:a076a1bbe630 87 printf("Button clicked %d times\n", v);
screamer 0:a076a1bbe630 88 }
screamer 0:a076a1bbe630 89
screamer 0:a076a1bbe630 90 /**
screamer 0:a076a1bbe630 91 * Notification callback handler
screamer 0:a076a1bbe630 92 * @param resource The resource that triggered the callback
screamer 0:a076a1bbe630 93 * @param status The delivery status of the notification
screamer 0:a076a1bbe630 94 */
screamer 0:a076a1bbe630 95 void button_callback(MbedCloudClientResource *resource, const NoticationDeliveryStatus status) {
screamer 0:a076a1bbe630 96 printf("Button notification, status %s (%d)\n", MbedCloudClientResource::delivery_status_to_string(status), status);
screamer 0:a076a1bbe630 97 }
screamer 0:a076a1bbe630 98
screamer 0:a076a1bbe630 99 /**
screamer 0:a076a1bbe630 100 * Registration callback handler
screamer 0:a076a1bbe630 101 * @param endpoint Information about the registered endpoint such as the name (so you can find it back in portal)
screamer 0:a076a1bbe630 102 */
screamer 0:a076a1bbe630 103 void registered(const ConnectorClientEndpointInfo *endpoint) {
screamer 3:3b2db67b206e 104 printf("Registered to Pelion Device Management. Endpoint Name: %s\n", endpoint->internal_endpoint_name.c_str());
screamer 0:a076a1bbe630 105 }
screamer 0:a076a1bbe630 106
screamer 0:a076a1bbe630 107 int main(void) {
screamer 3:3b2db67b206e 108 printf("\nStarting Simple Pelion Device Management Client example\n");
screamer 0:a076a1bbe630 109
screamer 6:2fb5057c0e42 110 #if USE_BUTTON == 1
screamer 0:a076a1bbe630 111 // If the User button is pressed ons start, then format storage.
screamer 6:2fb5057c0e42 112 if (button.read() == MBED_CONF_APP_BUTTON_PRESSED_STATE) {
screamer 0:a076a1bbe630 113 printf("User button is pushed on start. Formatting the storage...\n");
screamer 6:2fb5057c0e42 114 int storage_status = StorageHelper::format(&fs, bd);
screamer 0:a076a1bbe630 115 if (storage_status != 0) {
screamer 0:a076a1bbe630 116 printf("ERROR: Failed to reformat the storage (%d).\n", storage_status);
screamer 0:a076a1bbe630 117 }
screamer 3:3b2db67b206e 118 } else {
screamer 3:3b2db67b206e 119 printf("You can hold the user button during boot to format the storage and change the device identity.\n");
screamer 0:a076a1bbe630 120 }
screamer 6:2fb5057c0e42 121 #endif /* USE_BUTTON */
screamer 0:a076a1bbe630 122
screamer 6:2fb5057c0e42 123 // Connect to the Internet (DHCP is expected to be on)
screamer 6:2fb5057c0e42 124 printf("Connecting to the network using the default network interface...\n");
screamer 0:a076a1bbe630 125 net = NetworkInterface::get_default_instance();
screamer 0:a076a1bbe630 126
screamer 6:2fb5057c0e42 127 nsapi_error_t net_status = NSAPI_ERROR_NO_CONNECTION;
screamer 6:2fb5057c0e42 128 while ((net_status = net->connect()) != NSAPI_ERROR_OK) {
screamer 6:2fb5057c0e42 129 printf("Unable to connect to network (%d). Retrying...\n", net_status);
screamer 0:a076a1bbe630 130 }
screamer 0:a076a1bbe630 131
screamer 0:a076a1bbe630 132 printf("Connected to the network successfully. IP address: %s\n", net->get_ip_address());
screamer 0:a076a1bbe630 133
screamer 6:2fb5057c0e42 134 printf("Initializing Pelion Device Management Client...\n");
screamer 6:2fb5057c0e42 135
screamer 6:2fb5057c0e42 136 // SimpleMbedCloudClient handles registering over LwM2M to Pelion Device Management
screamer 0:a076a1bbe630 137 SimpleMbedCloudClient client(net, bd, &fs);
screamer 0:a076a1bbe630 138 int client_status = client.init();
screamer 0:a076a1bbe630 139 if (client_status != 0) {
screamer 6:2fb5057c0e42 140 printf("Pelion Client initialization failed (%d)\n", client_status);
screamer 0:a076a1bbe630 141 return -1;
screamer 0:a076a1bbe630 142 }
screamer 0:a076a1bbe630 143
screamer 0:a076a1bbe630 144 // Creating resources, which can be written or read from the cloud
screamer 6:2fb5057c0e42 145 button_res = client.create_resource("3200/0/5501", "button_count");
screamer 6:2fb5057c0e42 146 button_res->set_value(0);
screamer 6:2fb5057c0e42 147 button_res->methods(M2MMethod::GET);
screamer 6:2fb5057c0e42 148 button_res->observable(true);
screamer 6:2fb5057c0e42 149 button_res->attach_notification_callback(button_callback);
screamer 0:a076a1bbe630 150
screamer 6:2fb5057c0e42 151 led_res = client.create_resource("3201/0/5853", "led_state");
screamer 6:2fb5057c0e42 152 led_res->set_value(led.read());
screamer 6:2fb5057c0e42 153 led_res->methods(M2MMethod::GET | M2MMethod::PUT);
screamer 6:2fb5057c0e42 154 led_res->attach_put_callback(put_callback);
screamer 0:a076a1bbe630 155
screamer 6:2fb5057c0e42 156 post_res = client.create_resource("3300/0/5605", "execute_function");
screamer 6:2fb5057c0e42 157 post_res->methods(M2MMethod::POST);
screamer 6:2fb5057c0e42 158 post_res->attach_post_callback(post_callback);
screamer 0:a076a1bbe630 159
screamer 6:2fb5057c0e42 160 printf("Initialized Pelion Device Management Client. Registering...\n");
screamer 0:a076a1bbe630 161
screamer 0:a076a1bbe630 162 // Callback that fires when registering is complete
screamer 0:a076a1bbe630 163 client.on_registered(&registered);
screamer 0:a076a1bbe630 164
screamer 0:a076a1bbe630 165 // Register with Pelion DM
screamer 0:a076a1bbe630 166 client.register_and_connect();
screamer 0:a076a1bbe630 167
screamer 6:2fb5057c0e42 168 #if USE_BUTTON == 1
screamer 6:2fb5057c0e42 169 // The button fires on an interrupt context, but debounces it to the eventqueue, so it's safe to do network operations
screamer 0:a076a1bbe630 170 button.fall(eventQueue.event(&button_press));
screamer 3:3b2db67b206e 171 printf("Press the user button to increment the LwM2M resource value...\n");
screamer 6:2fb5057c0e42 172 #else
screamer 0:a076a1bbe630 173 // The timer fires on an interrupt context, but debounces it to the eventqueue, so it's safe to do network operations
screamer 0:a076a1bbe630 174 Ticker timer;
screamer 6:2fb5057c0e42 175 timer.attach(eventQueue.event(&button_press), 5.0);
screamer 6:2fb5057c0e42 176 printf("Simulating button press every 5 seconds...\n");
screamer 6:2fb5057c0e42 177 #endif /* USE_BUTTON */
screamer 0:a076a1bbe630 178
screamer 0:a076a1bbe630 179 // You can easily run the eventQueue in a separate thread if required
screamer 0:a076a1bbe630 180 eventQueue.dispatch_forever();
screamer 0:a076a1bbe630 181 }
screamer 6:2fb5057c0e42 182
screamer 6:2fb5057c0e42 183 #endif /* MBED_TEST_MODE */