Realtek / Mbed OS example-RTL8195AM-mbed-cloud-connect

This repository contains the example code to: 1) Connect RTL8195AM board to Pelion 2) Enable and run firmware update on RTL8195AM

RTL8195AM SMCC application demonstrates how to create a Simple Mbed Cloud Client application that can connect to Pelion, register resources and get FW updates.

main.cpp@7:f3c46cdb5ccf, 2018-12-14 (annotated)

Committer:
Lu Zhang
Date:
Fri Dec 14 18:59:27 2018 +0800
Revision:
7:f3c46cdb5ccf
Parent:
5:d1d54f04217e 
Update mbed-os.lib link to the master repository (14 Dec 2018)

Who changed what in which revision?

UserRevisionLine numberNew contents of line
prashantrar 0:07e701513236 1 // ----------------------------------------------------------------------------
prashantrar 1:fe5f4acd0b5e 2 // Copyright 2016-2018 ARM Ltd.
prashantrar 0:07e701513236 3 //
prashantrar 0:07e701513236 4 // SPDX-License-Identifier: Apache-2.0
prashantrar 0:07e701513236 5 //
prashantrar 0:07e701513236 6 // Licensed under the Apache License, Version 2.0 (the "License");
prashantrar 0:07e701513236 7 // you may not use this file except in compliance with the License.
prashantrar 0:07e701513236 8 // You may obtain a copy of the License at
prashantrar 0:07e701513236 9 //
prashantrar 0:07e701513236 10 // http://www.apache.org/licenses/LICENSE-2.0
prashantrar 0:07e701513236 11 //
prashantrar 0:07e701513236 12 // Unless required by applicable law or agreed to in writing, software
prashantrar 0:07e701513236 13 // distributed under the License is distributed on an "AS IS" BASIS,
prashantrar 0:07e701513236 14 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
prashantrar 0:07e701513236 15 // See the License for the specific language governing permissions and
prashantrar 0:07e701513236 16 // limitations under the License.
prashantrar 0:07e701513236 17 // ----------------------------------------------------------------------------
prashantrar 0:07e701513236 18
prashantrar 0:07e701513236 19 #include "mbed.h"
prashantrar 0:07e701513236 20 #include "simple-mbed-cloud-client.h"
prashantrar 0:07e701513236 21 #include "SDBlockDevice.h"
prashantrar 0:07e701513236 22 #include "FATFileSystem.h"
prashantrar 0:07e701513236 23 #include "RTWInterface.h"
prashantrar 0:07e701513236 24
prashantrar 1:fe5f4acd0b5e 25 // An event queue is a very useful structure to debounce information between contexts (e.g. ISR and normal threads)
prashantrar 1:fe5f4acd0b5e 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
prashantrar 1:fe5f4acd0b5e 27 EventQueue eventQueue;
prashantrar 0:07e701513236 28
prashantrar 1:fe5f4acd0b5e 29 // Storage implementation definition, currently using SDBlockDevice (SPI flash, DataFlash, and internal flash are also available)
prashantrar 4:6ef46ab40055 30 SDBlockDevice sd(D11, D12, D13, D10); // MOSI, MISO, CLK, CS
prashantrar 1:fe5f4acd0b5e 31 FATFileSystem fs("sd", &sd);
prashantrar 0:07e701513236 32
prashantrar 1:fe5f4acd0b5e 33 // Declaring pointers for access to Mbed Cloud Client resources outside of main()
prashantrar 1:fe5f4acd0b5e 34 MbedCloudClientResource *button_res;
prashantrar 1:fe5f4acd0b5e 35 MbedCloudClientResource *pattern_res;
prashantrar 0:07e701513236 36
prashantrar 1:fe5f4acd0b5e 37 // This function gets triggered by the timer. It's easy to replace it by an InterruptIn and fall() mode on a real button
prashantrar 1:fe5f4acd0b5e 38 void fake_button_press() {
prashantrar 1:fe5f4acd0b5e 39 int v = button_res->get_value_int() + 1;
prashantrar 0:07e701513236 40
prashantrar 1:fe5f4acd0b5e 41 button_res->set_value(v);
prashantrar 0:07e701513236 42
Tony Wu 5:d1d54f04217e 43 if (v % 10 == 1) {
Tony Wu 5:d1d54f04217e 44 printf("Simulated button clicked %d times\n", v);
Tony Wu 5:d1d54f04217e 45 }
prashantrar 0:07e701513236 46 }
prashantrar 0:07e701513236 47
prashantrar 1:fe5f4acd0b5e 48 /**
prashantrar 1:fe5f4acd0b5e 49 * PUT handler
prashantrar 1:fe5f4acd0b5e 50 * @param resource The resource that triggered the callback
prashantrar 1:fe5f4acd0b5e 51 * @param newValue Updated value for the resource
prashantrar 1:fe5f4acd0b5e 52 */
prashantrar 1:fe5f4acd0b5e 53 void pattern_updated(MbedCloudClientResource *resource, m2m::String newValue) {
prashantrar 1:fe5f4acd0b5e 54 printf("PUT received, new value: %s\n", newValue.c_str());
prashantrar 0:07e701513236 55 }
prashantrar 0:07e701513236 56
prashantrar 1:fe5f4acd0b5e 57 /**
prashantrar 1:fe5f4acd0b5e 58 * POST handler
prashantrar 1:fe5f4acd0b5e 59 * @param resource The resource that triggered the callback
prashantrar 1:fe5f4acd0b5e 60 * @param buffer If a body was passed to the POST function, this contains the data.
prashantrar 1:fe5f4acd0b5e 61 * Note that the buffer is deallocated after leaving this function, so copy it if you need it longer.
prashantrar 1:fe5f4acd0b5e 62 * @param size Size of the body
prashantrar 1:fe5f4acd0b5e 63 */
prashantrar 1:fe5f4acd0b5e 64 void blink_callback(MbedCloudClientResource *resource, const uint8_t *buffer, uint16_t size) {
prashantrar 1:fe5f4acd0b5e 65 printf("POST received. Going to blink LED pattern: %s\n", pattern_res->get_value().c_str());
prashantrar 1:fe5f4acd0b5e 66
prashantrar 1:fe5f4acd0b5e 67 static DigitalOut augmentedLed(LED1); // LED that is used for blinking the pattern
prashantrar 0:07e701513236 68
prashantrar 1:fe5f4acd0b5e 69 // Parse the pattern string, and toggle the LED in that pattern
prashantrar 1:fe5f4acd0b5e 70 string s = std::string(pattern_res->get_value().c_str());
prashantrar 1:fe5f4acd0b5e 71 size_t i = 0;
prashantrar 1:fe5f4acd0b5e 72 size_t pos = s.find(':');
prashantrar 1:fe5f4acd0b5e 73 while (pos != string::npos) {
prashantrar 1:fe5f4acd0b5e 74 wait_ms(atoi(s.substr(i, pos - i).c_str()));
prashantrar 1:fe5f4acd0b5e 75 augmentedLed = !augmentedLed;
prashantrar 1:fe5f4acd0b5e 76
prashantrar 1:fe5f4acd0b5e 77 i = ++pos;
prashantrar 1:fe5f4acd0b5e 78 pos = s.find(':', pos);
prashantrar 1:fe5f4acd0b5e 79
prashantrar 1:fe5f4acd0b5e 80 if (pos == string::npos) {
prashantrar 1:fe5f4acd0b5e 81 wait_ms(atoi(s.substr(i, s.length()).c_str()));
prashantrar 1:fe5f4acd0b5e 82 augmentedLed = !augmentedLed;
prashantrar 1:fe5f4acd0b5e 83 }
prashantrar 1:fe5f4acd0b5e 84 }
prashantrar 0:07e701513236 85 }
prashantrar 0:07e701513236 86
prashantrar 1:fe5f4acd0b5e 87 /**
prashantrar 1:fe5f4acd0b5e 88 * Notification callback handler
prashantrar 1:fe5f4acd0b5e 89 * @param resource The resource that triggered the callback
prashantrar 1:fe5f4acd0b5e 90 * @param status The delivery status of the notification
prashantrar 1:fe5f4acd0b5e 91 */
prashantrar 1:fe5f4acd0b5e 92 void button_callback(MbedCloudClientResource *resource, const NoticationDeliveryStatus status) {
prashantrar 1:fe5f4acd0b5e 93 printf("Button notification, status %s (%d)\n", MbedCloudClientResource::delivery_status_to_string(status), status);
prashantrar 1:fe5f4acd0b5e 94 }
prashantrar 0:07e701513236 95
prashantrar 1:fe5f4acd0b5e 96 /**
prashantrar 1:fe5f4acd0b5e 97 * Registration callback handler
prashantrar 1:fe5f4acd0b5e 98 * @param endpoint Information about the registered endpoint such as the name (so you can find it back in portal)
prashantrar 1:fe5f4acd0b5e 99 */
prashantrar 1:fe5f4acd0b5e 100 void registered(const ConnectorClientEndpointInfo *endpoint) {
prashantrar 1:fe5f4acd0b5e 101 printf("Connected to Mbed Cloud. Endpoint Name: %s\n", endpoint->internal_endpoint_name.c_str());
prashantrar 1:fe5f4acd0b5e 102 }
prashantrar 0:07e701513236 103
prashantrar 1:fe5f4acd0b5e 104 int main(void) {
prashantrar 1:fe5f4acd0b5e 105 printf("Starting Simple Mbed Cloud Client example\n");
prashantrar 1:fe5f4acd0b5e 106 printf("Connecting to the network using RTW Wifi...\n");
prashantrar 1:fe5f4acd0b5e 107
prashantrar 1:fe5f4acd0b5e 108 // Connect to the internet (DHCP is expected to be on)
prashantrar 1:fe5f4acd0b5e 109 RTWInterface net;
prashantrar 1:fe5f4acd0b5e 110 nsapi_error_t status = net.connect(MBED_CONF_APP_WIFI_SSID, MBED_CONF_APP_WIFI_PASSWORD, NSAPI_SECURITY_WPA_WPA2);
prashantrar 1:fe5f4acd0b5e 111
prashantrar 1:fe5f4acd0b5e 112 if (status != 0) {
prashantrar 1:fe5f4acd0b5e 113 printf("Connecting to the network failed %d!\n", status);
prashantrar 0:07e701513236 114 return -1;
prashantrar 0:07e701513236 115 }
prashantrar 0:07e701513236 116
prashantrar 1:fe5f4acd0b5e 117 printf("Connected to the network successfully. IP address: %s\n", net.get_ip_address());
prashantrar 0:07e701513236 118
prashantrar 1:fe5f4acd0b5e 119 // SimpleMbedCloudClient handles registering over LwM2M to Mbed Cloud
prashantrar 1:fe5f4acd0b5e 120 SimpleMbedCloudClient client(&net, &sd, &fs);
prashantrar 1:fe5f4acd0b5e 121 int client_status = client.init();
prashantrar 1:fe5f4acd0b5e 122 if (client_status != 0) {
prashantrar 1:fe5f4acd0b5e 123 printf("Initializing Mbed Cloud Client failed (%d)\n", client_status);
prashantrar 0:07e701513236 124 return -1;
prashantrar 0:07e701513236 125 }
prashantrar 0:07e701513236 126
prashantrar 1:fe5f4acd0b5e 127 // Creating resources, which can be written or read from the cloud
prashantrar 1:fe5f4acd0b5e 128 button_res = client.create_resource("3200/0/5501", "button_count");
prashantrar 1:fe5f4acd0b5e 129 button_res->set_value(0);
prashantrar 1:fe5f4acd0b5e 130 button_res->methods(M2MMethod::GET);
prashantrar 1:fe5f4acd0b5e 131 button_res->observable(true);
prashantrar 1:fe5f4acd0b5e 132 button_res->attach_notification_callback(button_callback);
prashantrar 0:07e701513236 133
prashantrar 1:fe5f4acd0b5e 134 pattern_res = client.create_resource("3201/0/5853", "blink_pattern");
prashantrar 1:fe5f4acd0b5e 135 pattern_res->set_value("500:500:500:500:500:500:500:500");
prashantrar 1:fe5f4acd0b5e 136 pattern_res->methods(M2MMethod::GET | M2MMethod::PUT);
prashantrar 1:fe5f4acd0b5e 137 pattern_res->attach_put_callback(pattern_updated);
prashantrar 0:07e701513236 138
prashantrar 1:fe5f4acd0b5e 139 MbedCloudClientResource *blink_res = client.create_resource("3201/0/5850", "blink_action");
prashantrar 1:fe5f4acd0b5e 140 blink_res->methods(M2MMethod::POST);
prashantrar 1:fe5f4acd0b5e 141 blink_res->attach_post_callback(blink_callback);
prashantrar 1:fe5f4acd0b5e 142
prashantrar 1:fe5f4acd0b5e 143 printf("Initialized Mbed Cloud Client. Registering...\n");
prashantrar 0:07e701513236 144
prashantrar 1:fe5f4acd0b5e 145 // Callback that fires when registering is complete
prashantrar 1:fe5f4acd0b5e 146 client.on_registered(&registered);
prashantrar 0:07e701513236 147
prashantrar 1:fe5f4acd0b5e 148 // Register with Mbed Cloud
prashantrar 1:fe5f4acd0b5e 149 client.register_and_connect();
prashantrar 0:07e701513236 150
prashantrar 0:07e701513236 151 // Placeholder for callback to update local resource when GET comes.
prashantrar 1:fe5f4acd0b5e 152 // The timer fires on an interrupt context, but debounces it to the eventqueue, so it's safe to do network operations
prashantrar 1:fe5f4acd0b5e 153 Ticker timer;
prashantrar 1:fe5f4acd0b5e 154 timer.attach(eventQueue.event(&fake_button_press), 5.0);
prashantrar 0:07e701513236 155
prashantrar 1:fe5f4acd0b5e 156 // You can easily run the eventQueue in a separate thread if required
prashantrar 1:fe5f4acd0b5e 157 eventQueue.dispatch_forever();
prashantrar 0:07e701513236 158 }