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@4:6ef46ab40055, 2018-07-24 (annotated)

Committer:
prashantrar
Date:
Tue Jul 24 12:00:03 2018 +0800
Revision:
4:6ef46ab40055
Parent:
1:fe5f4acd0b5e
Child:
5:d1d54f04217e
fixing missing pin

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
prashantrar 1:fe5f4acd0b5e 43 printf("Simulated button clicked %d times\n", v);
prashantrar 0:07e701513236 44 }
prashantrar 0:07e701513236 45
prashantrar 1:fe5f4acd0b5e 46 /**
prashantrar 1:fe5f4acd0b5e 47 * PUT handler
prashantrar 1:fe5f4acd0b5e 48 * @param resource The resource that triggered the callback
prashantrar 1:fe5f4acd0b5e 49 * @param newValue Updated value for the resource
prashantrar 1:fe5f4acd0b5e 50 */
prashantrar 1:fe5f4acd0b5e 51 void pattern_updated(MbedCloudClientResource *resource, m2m::String newValue) {
prashantrar 1:fe5f4acd0b5e 52 printf("PUT received, new value: %s\n", newValue.c_str());
prashantrar 0:07e701513236 53 }
prashantrar 0:07e701513236 54
prashantrar 1:fe5f4acd0b5e 55 /**
prashantrar 1:fe5f4acd0b5e 56 * POST handler
prashantrar 1:fe5f4acd0b5e 57 * @param resource The resource that triggered the callback
prashantrar 1:fe5f4acd0b5e 58 * @param buffer If a body was passed to the POST function, this contains the data.
prashantrar 1:fe5f4acd0b5e 59 * Note that the buffer is deallocated after leaving this function, so copy it if you need it longer.
prashantrar 1:fe5f4acd0b5e 60 * @param size Size of the body
prashantrar 1:fe5f4acd0b5e 61 */
prashantrar 1:fe5f4acd0b5e 62 void blink_callback(MbedCloudClientResource *resource, const uint8_t *buffer, uint16_t size) {
prashantrar 1:fe5f4acd0b5e 63 printf("POST received. Going to blink LED pattern: %s\n", pattern_res->get_value().c_str());
prashantrar 1:fe5f4acd0b5e 64
prashantrar 1:fe5f4acd0b5e 65 static DigitalOut augmentedLed(LED1); // LED that is used for blinking the pattern
prashantrar 0:07e701513236 66
prashantrar 1:fe5f4acd0b5e 67 // Parse the pattern string, and toggle the LED in that pattern
prashantrar 1:fe5f4acd0b5e 68 string s = std::string(pattern_res->get_value().c_str());
prashantrar 1:fe5f4acd0b5e 69 size_t i = 0;
prashantrar 1:fe5f4acd0b5e 70 size_t pos = s.find(':');
prashantrar 1:fe5f4acd0b5e 71 while (pos != string::npos) {
prashantrar 1:fe5f4acd0b5e 72 wait_ms(atoi(s.substr(i, pos - i).c_str()));
prashantrar 1:fe5f4acd0b5e 73 augmentedLed = !augmentedLed;
prashantrar 1:fe5f4acd0b5e 74
prashantrar 1:fe5f4acd0b5e 75 i = ++pos;
prashantrar 1:fe5f4acd0b5e 76 pos = s.find(':', pos);
prashantrar 1:fe5f4acd0b5e 77
prashantrar 1:fe5f4acd0b5e 78 if (pos == string::npos) {
prashantrar 1:fe5f4acd0b5e 79 wait_ms(atoi(s.substr(i, s.length()).c_str()));
prashantrar 1:fe5f4acd0b5e 80 augmentedLed = !augmentedLed;
prashantrar 1:fe5f4acd0b5e 81 }
prashantrar 1:fe5f4acd0b5e 82 }
prashantrar 0:07e701513236 83 }
prashantrar 0:07e701513236 84
prashantrar 1:fe5f4acd0b5e 85 /**
prashantrar 1:fe5f4acd0b5e 86 * Notification callback handler
prashantrar 1:fe5f4acd0b5e 87 * @param resource The resource that triggered the callback
prashantrar 1:fe5f4acd0b5e 88 * @param status The delivery status of the notification
prashantrar 1:fe5f4acd0b5e 89 */
prashantrar 1:fe5f4acd0b5e 90 void button_callback(MbedCloudClientResource *resource, const NoticationDeliveryStatus status) {
prashantrar 1:fe5f4acd0b5e 91 printf("Button notification, status %s (%d)\n", MbedCloudClientResource::delivery_status_to_string(status), status);
prashantrar 1:fe5f4acd0b5e 92 }
prashantrar 0:07e701513236 93
prashantrar 1:fe5f4acd0b5e 94 /**
prashantrar 1:fe5f4acd0b5e 95 * Registration callback handler
prashantrar 1:fe5f4acd0b5e 96 * @param endpoint Information about the registered endpoint such as the name (so you can find it back in portal)
prashantrar 1:fe5f4acd0b5e 97 */
prashantrar 1:fe5f4acd0b5e 98 void registered(const ConnectorClientEndpointInfo *endpoint) {
prashantrar 1:fe5f4acd0b5e 99 printf("Connected to Mbed Cloud. Endpoint Name: %s\n", endpoint->internal_endpoint_name.c_str());
prashantrar 1:fe5f4acd0b5e 100 }
prashantrar 0:07e701513236 101
prashantrar 1:fe5f4acd0b5e 102 int main(void) {
prashantrar 1:fe5f4acd0b5e 103 printf("Starting Simple Mbed Cloud Client example\n");
prashantrar 1:fe5f4acd0b5e 104 printf("Connecting to the network using RTW Wifi...\n");
prashantrar 1:fe5f4acd0b5e 105
prashantrar 1:fe5f4acd0b5e 106 // Connect to the internet (DHCP is expected to be on)
prashantrar 1:fe5f4acd0b5e 107 RTWInterface net;
prashantrar 1:fe5f4acd0b5e 108 nsapi_error_t status = net.connect(MBED_CONF_APP_WIFI_SSID, MBED_CONF_APP_WIFI_PASSWORD, NSAPI_SECURITY_WPA_WPA2);
prashantrar 1:fe5f4acd0b5e 109
prashantrar 1:fe5f4acd0b5e 110 if (status != 0) {
prashantrar 1:fe5f4acd0b5e 111 printf("Connecting to the network failed %d!\n", status);
prashantrar 0:07e701513236 112 return -1;
prashantrar 0:07e701513236 113 }
prashantrar 0:07e701513236 114
prashantrar 1:fe5f4acd0b5e 115 printf("Connected to the network successfully. IP address: %s\n", net.get_ip_address());
prashantrar 0:07e701513236 116
prashantrar 1:fe5f4acd0b5e 117 // SimpleMbedCloudClient handles registering over LwM2M to Mbed Cloud
prashantrar 1:fe5f4acd0b5e 118 SimpleMbedCloudClient client(&net, &sd, &fs);
prashantrar 1:fe5f4acd0b5e 119 int client_status = client.init();
prashantrar 1:fe5f4acd0b5e 120 if (client_status != 0) {
prashantrar 1:fe5f4acd0b5e 121 printf("Initializing Mbed Cloud Client failed (%d)\n", client_status);
prashantrar 0:07e701513236 122 return -1;
prashantrar 0:07e701513236 123 }
prashantrar 0:07e701513236 124
prashantrar 1:fe5f4acd0b5e 125 // Creating resources, which can be written or read from the cloud
prashantrar 1:fe5f4acd0b5e 126 button_res = client.create_resource("3200/0/5501", "button_count");
prashantrar 1:fe5f4acd0b5e 127 button_res->set_value(0);
prashantrar 1:fe5f4acd0b5e 128 button_res->methods(M2MMethod::GET);
prashantrar 1:fe5f4acd0b5e 129 button_res->observable(true);
prashantrar 1:fe5f4acd0b5e 130 button_res->attach_notification_callback(button_callback);
prashantrar 0:07e701513236 131
prashantrar 1:fe5f4acd0b5e 132 pattern_res = client.create_resource("3201/0/5853", "blink_pattern");
prashantrar 1:fe5f4acd0b5e 133 pattern_res->set_value("500:500:500:500:500:500:500:500");
prashantrar 1:fe5f4acd0b5e 134 pattern_res->methods(M2MMethod::GET | M2MMethod::PUT);
prashantrar 1:fe5f4acd0b5e 135 pattern_res->attach_put_callback(pattern_updated);
prashantrar 0:07e701513236 136
prashantrar 1:fe5f4acd0b5e 137 MbedCloudClientResource *blink_res = client.create_resource("3201/0/5850", "blink_action");
prashantrar 1:fe5f4acd0b5e 138 blink_res->methods(M2MMethod::POST);
prashantrar 1:fe5f4acd0b5e 139 blink_res->attach_post_callback(blink_callback);
prashantrar 1:fe5f4acd0b5e 140
prashantrar 1:fe5f4acd0b5e 141 printf("Initialized Mbed Cloud Client. Registering...\n");
prashantrar 0:07e701513236 142
prashantrar 1:fe5f4acd0b5e 143 // Callback that fires when registering is complete
prashantrar 1:fe5f4acd0b5e 144 client.on_registered(&registered);
prashantrar 0:07e701513236 145
prashantrar 1:fe5f4acd0b5e 146 // Register with Mbed Cloud
prashantrar 1:fe5f4acd0b5e 147 client.register_and_connect();
prashantrar 0:07e701513236 148
prashantrar 0:07e701513236 149 // Placeholder for callback to update local resource when GET comes.
prashantrar 1:fe5f4acd0b5e 150 // The timer fires on an interrupt context, but debounces it to the eventqueue, so it's safe to do network operations
prashantrar 1:fe5f4acd0b5e 151 Ticker timer;
prashantrar 1:fe5f4acd0b5e 152 timer.attach(eventQueue.event(&fake_button_press), 5.0);
prashantrar 0:07e701513236 153
prashantrar 1:fe5f4acd0b5e 154 // You can easily run the eventQueue in a separate thread if required
prashantrar 1:fe5f4acd0b5e 155 eventQueue.dispatch_forever();
prashantrar 0:07e701513236 156 }