Qasim Zia / Mbed OS pelion-example-common

pelion-example-common

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

main.cpp@12:dd17519b5e30, 2019-07-04 (annotated)

Committer:
fahimalavi
Date:
Thu Jul 04 14:47:10 2019 +0500
Revision:
12:dd17519b5e30
Parent:
11:7cdc7397d270
Child:
13:f5b874c31495
Reverting back as Odin-W2 has build error with Mbed-os 5.12.4 and SMCC, reverting back to 230af466efc4

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"
fahimalavi 11:7cdc7397d270 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 7:230af466efc4 33 FATFileSystem fs("fs");
screamer 3:3b2db67b206e 34 #else
screamer 3:3b2db67b206e 35 // Use LittleFileSystem for non-SD block devices to enable wear leveling and other functions
screamer 7:230af466efc4 36 LittleFileSystem fs("fs");
screamer 3:3b2db67b206e 37 #endif
screamer 3:3b2db67b206e 38
screamer 7:230af466efc4 39 // Default User button for GET example
screamer 6:2fb5057c0e42 40 InterruptIn button(BUTTON1);
screamer 0:a076a1bbe630 41 // Default LED to use for PUT/POST example
screamer 7:230af466efc4 42 DigitalOut led(LED1, 0);
screamer 1:a50c1e691ff1 43
screamer 6:2fb5057c0e42 44 // Declaring pointers for access to Pelion Device Management Client resources outside of main()
screamer 7:230af466efc4 45 MbedCloudClientResource *res_button;
screamer 7:230af466efc4 46 MbedCloudClientResource *res_led;
screamer 7:230af466efc4 47 MbedCloudClientResource *res_post;
screamer 0:a076a1bbe630 48
screamer 6:2fb5057c0e42 49 // An event queue is a very useful structure to debounce information between contexts (e.g. ISR and normal threads)
screamer 6:2fb5057c0e42 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
screamer 6:2fb5057c0e42 51 EventQueue eventQueue;
screamer 0:a076a1bbe630 52
screamer 7:230af466efc4 53 // When the device is registered, this variable will be used to access various useful information, like device ID etc.
screamer 7:230af466efc4 54 static const ConnectorClientEndpointInfo* endpointInfo;
screamer 7:230af466efc4 55
screamer 0:a076a1bbe630 56 /**
screamer 6:2fb5057c0e42 57 * PUT handler - sets the value of the built-in LED
screamer 0:a076a1bbe630 58 * @param resource The resource that triggered the callback
screamer 0:a076a1bbe630 59 * @param newValue Updated value for the resource
screamer 0:a076a1bbe630 60 */
screamer 6:2fb5057c0e42 61 void put_callback(MbedCloudClientResource *resource, m2m::String newValue) {
screamer 7:230af466efc4 62 printf("*** PUT received, new value: %s \n", newValue.c_str());
screamer 0:a076a1bbe630 63 led = atoi(newValue.c_str());
screamer 0:a076a1bbe630 64 }
screamer 0:a076a1bbe630 65
screamer 0:a076a1bbe630 66 /**
screamer 6:2fb5057c0e42 67 * POST handler - prints the content of the payload
screamer 0:a076a1bbe630 68 * @param resource The resource that triggered the callback
screamer 0:a076a1bbe630 69 * @param buffer If a body was passed to the POST function, this contains the data.
screamer 0:a076a1bbe630 70 * Note that the buffer is deallocated after leaving this function, so copy it if you need it longer.
screamer 0:a076a1bbe630 71 * @param size Size of the body
screamer 0:a076a1bbe630 72 */
screamer 6:2fb5057c0e42 73 void post_callback(MbedCloudClientResource *resource, const uint8_t *buffer, uint16_t size) {
screamer 7:230af466efc4 74 printf("*** POST received (length %u). Payload: ", size);
screamer 6:2fb5057c0e42 75 for (size_t ix = 0; ix < size; ix++) {
screamer 6:2fb5057c0e42 76 printf("%02x ", buffer[ix]);
screamer 6:2fb5057c0e42 77 }
screamer 6:2fb5057c0e42 78 printf("\n");
screamer 0:a076a1bbe630 79 }
screamer 0:a076a1bbe630 80
screamer 0:a076a1bbe630 81 /**
screamer 6:2fb5057c0e42 82 * Button handler
screamer 6:2fb5057c0e42 83 * This function will be triggered either by a physical button press or by a ticker every 5 seconds (see below)
screamer 0:a076a1bbe630 84 */
screamer 0:a076a1bbe630 85 void button_press() {
screamer 7:230af466efc4 86 int v = res_button->get_value_int() + 1;
screamer 7:230af466efc4 87 res_button->set_value(v);
screamer 7:230af466efc4 88 printf("*** Button clicked %d times \n", v);
screamer 0:a076a1bbe630 89 }
screamer 0:a076a1bbe630 90
screamer 0:a076a1bbe630 91 /**
screamer 0:a076a1bbe630 92 * Notification callback handler
screamer 0:a076a1bbe630 93 * @param resource The resource that triggered the callback
screamer 0:a076a1bbe630 94 * @param status The delivery status of the notification
screamer 0:a076a1bbe630 95 */
screamer 0:a076a1bbe630 96 void button_callback(MbedCloudClientResource *resource, const NoticationDeliveryStatus status) {
screamer 7:230af466efc4 97 printf("*** Button notification, status %s (%d) \n", MbedCloudClientResource::delivery_status_to_string(status), status);
screamer 0:a076a1bbe630 98 }
screamer 0:a076a1bbe630 99
screamer 0:a076a1bbe630 100 /**
screamer 0:a076a1bbe630 101 * Registration callback handler
screamer 0:a076a1bbe630 102 * @param endpoint Information about the registered endpoint such as the name (so you can find it back in portal)
screamer 0:a076a1bbe630 103 */
screamer 0:a076a1bbe630 104 void registered(const ConnectorClientEndpointInfo *endpoint) {
screamer 3:3b2db67b206e 105 printf("Registered to Pelion Device Management. Endpoint Name: %s\n", endpoint->internal_endpoint_name.c_str());
screamer 7:230af466efc4 106 endpointInfo = endpoint;
screamer 0:a076a1bbe630 107 }
screamer 0:a076a1bbe630 108
screamer 0:a076a1bbe630 109 int main(void) {
screamer 3:3b2db67b206e 110 printf("\nStarting Simple Pelion Device Management Client example\n");
screamer 0:a076a1bbe630 111
screamer 7:230af466efc4 112 int storage_status = fs.mount(bd);
screamer 7:230af466efc4 113 if (storage_status != 0) {
screamer 7:230af466efc4 114 printf("Storage mounting failed.\n");
screamer 7:230af466efc4 115 }
screamer 0:a076a1bbe630 116 // If the User button is pressed ons start, then format storage.
screamer 7:230af466efc4 117 bool btn_pressed = (button.read() == MBED_CONF_APP_BUTTON_PRESSED_STATE);
screamer 7:230af466efc4 118 if (btn_pressed) {
screamer 7:230af466efc4 119 printf("User button is pushed on start...\n");
screamer 7:230af466efc4 120 }
screamer 7:230af466efc4 121
screamer 7:230af466efc4 122 if (storage_status || btn_pressed) {
screamer 7:230af466efc4 123 printf("Formatting the storage...\n");
screamer 6:2fb5057c0e42 124 int storage_status = StorageHelper::format(&fs, bd);
screamer 0:a076a1bbe630 125 if (storage_status != 0) {
screamer 0:a076a1bbe630 126 printf("ERROR: Failed to reformat the storage (%d).\n", storage_status);
screamer 0:a076a1bbe630 127 }
screamer 3:3b2db67b206e 128 } else {
screamer 3:3b2db67b206e 129 printf("You can hold the user button during boot to format the storage and change the device identity.\n");
screamer 0:a076a1bbe630 130 }
screamer 0:a076a1bbe630 131
screamer 6:2fb5057c0e42 132 // Connect to the Internet (DHCP is expected to be on)
screamer 6:2fb5057c0e42 133 printf("Connecting to the network using the default network interface...\n");
screamer 0:a076a1bbe630 134 net = NetworkInterface::get_default_instance();
screamer 0:a076a1bbe630 135
screamer 6:2fb5057c0e42 136 nsapi_error_t net_status = NSAPI_ERROR_NO_CONNECTION;
screamer 6:2fb5057c0e42 137 while ((net_status = net->connect()) != NSAPI_ERROR_OK) {
screamer 6:2fb5057c0e42 138 printf("Unable to connect to network (%d). Retrying...\n", net_status);
screamer 0:a076a1bbe630 139 }
screamer 0:a076a1bbe630 140
screamer 0:a076a1bbe630 141 printf("Connected to the network successfully. IP address: %s\n", net->get_ip_address());
screamer 0:a076a1bbe630 142
screamer 6:2fb5057c0e42 143 printf("Initializing Pelion Device Management Client...\n");
screamer 6:2fb5057c0e42 144
screamer 6:2fb5057c0e42 145 // SimpleMbedCloudClient handles registering over LwM2M to Pelion Device Management
screamer 0:a076a1bbe630 146 SimpleMbedCloudClient client(net, bd, &fs);
screamer 0:a076a1bbe630 147 int client_status = client.init();
screamer 0:a076a1bbe630 148 if (client_status != 0) {
screamer 6:2fb5057c0e42 149 printf("Pelion Client initialization failed (%d)\n", client_status);
screamer 0:a076a1bbe630 150 return -1;
screamer 0:a076a1bbe630 151 }
screamer 0:a076a1bbe630 152
screamer 0:a076a1bbe630 153 // Creating resources, which can be written or read from the cloud
screamer 7:230af466efc4 154 res_button = client.create_resource("3200/0/5501", "Button Count");
screamer 7:230af466efc4 155 res_button->set_value(0);
screamer 7:230af466efc4 156 res_button->methods(M2MMethod::GET);
screamer 7:230af466efc4 157 res_button->observable(true);
screamer 7:230af466efc4 158 res_button->attach_notification_callback(button_callback);
screamer 0:a076a1bbe630 159
screamer 7:230af466efc4 160 res_led = client.create_resource("3201/0/5853", "LED State");
screamer 7:230af466efc4 161 res_led->set_value(led.read());
screamer 7:230af466efc4 162 res_led->methods(M2MMethod::GET | M2MMethod::PUT);
screamer 7:230af466efc4 163 res_led->attach_put_callback(put_callback);
screamer 0:a076a1bbe630 164
screamer 7:230af466efc4 165 res_post = client.create_resource("3300/0/5605", "Execute Function");
screamer 7:230af466efc4 166 res_post->methods(M2MMethod::POST);
screamer 7:230af466efc4 167 res_post->attach_post_callback(post_callback);
screamer 0:a076a1bbe630 168
screamer 6:2fb5057c0e42 169 printf("Initialized Pelion Device Management Client. Registering...\n");
screamer 0:a076a1bbe630 170
screamer 0:a076a1bbe630 171 // Callback that fires when registering is complete
screamer 0:a076a1bbe630 172 client.on_registered(&registered);
screamer 0:a076a1bbe630 173
screamer 0:a076a1bbe630 174 // Register with Pelion DM
screamer 0:a076a1bbe630 175 client.register_and_connect();
screamer 0:a076a1bbe630 176
screamer 6:2fb5057c0e42 177 // The button fires on an interrupt context, but debounces it to the eventqueue, so it's safe to do network operations
screamer 0:a076a1bbe630 178 button.fall(eventQueue.event(&button_press));
screamer 3:3b2db67b206e 179 printf("Press the user button to increment the LwM2M resource value...\n");
screamer 0:a076a1bbe630 180
screamer 0:a076a1bbe630 181 // You can easily run the eventQueue in a separate thread if required
screamer 0:a076a1bbe630 182 eventQueue.dispatch_forever();
screamer 0:a076a1bbe630 183 }
screamer 6:2fb5057c0e42 184
screamer 6:2fb5057c0e42 185 #endif /* MBED_TEST_MODE */