Mbed Cloud Connect for Ethernet Platforms
Fork of example-Ethernet-mbed-Cloud-connect by
main.cpp@11:bb67b71b6c9d, 2018-05-18 (annotated)
- Committer:
- davwal04@E108444.Emea.Arm.com
- Date:
- Fri May 18 15:32:36 2018 +0100
- Branch:
- update-1.3.0
- Revision:
- 11:bb67b71b6c9d
- Parent:
- 10:8da380655d09
Changing Stack size to 5000, enabling NUCLEO_F767ZI and NUCLEO_F746ZG
Who changed what in which revision?
User | Revision | Line number | New contents of line |
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davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 1 | // ---------------------------------------------------------------------------- |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 2 | // Copyright 2016-2018 ARM Ltd. |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 3 | // |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 4 | // SPDX-License-Identifier: Apache-2.0 |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 5 | // |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 6 | // Licensed under the Apache License, Version 2.0 (the "License"); |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 7 | // you may not use this file except in compliance with the License. |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 8 | // You may obtain a copy of the License at |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 9 | // |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 10 | // http://www.apache.org/licenses/LICENSE-2.0 |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 11 | // |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 12 | // Unless required by applicable law or agreed to in writing, software |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 13 | // distributed under the License is distributed on an "AS IS" BASIS, |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 14 | // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 15 | // See the License for the specific language governing permissions and |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 16 | // limitations under the License. |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 17 | // ---------------------------------------------------------------------------- |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 18 | |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 19 | #include "mbed.h" |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 20 | #include "simple-mbed-cloud-client.h" |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 21 | #include "SDBlockDevice.h" |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 22 | #include "FATFileSystem.h" |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 23 | #include "EthernetInterface.h" |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 24 | |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 25 | // An event queue is a very useful structure to debounce information between contexts (e.g. ISR and normal threads) |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 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 |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 27 | EventQueue eventQueue; |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 28 | |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 29 | // Storage implementation definition, currently using SDBlockDevice (SPI flash, DataFlash, and internal flash are also available) |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 30 | SDBlockDevice bd(MBED_CONF_APP_SPI_MOSI, MBED_CONF_APP_SPI_MISO, MBED_CONF_APP_SPI_CLK, MBED_CONF_APP_SPI_CS); |
davwal04@E108444.Emea.Arm.com | 8:f4f5b7622f8d | 31 | FATFileSystem fs("sd", &bd); |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 32 | |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 33 | // Declaring pointers for access to Mbed Cloud Client resources outside of main() |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 34 | MbedCloudClientResource *button_res; |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 35 | MbedCloudClientResource *pattern_res; |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 36 | |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 37 | // This function gets triggered by the timer. It's easy to replace it by an InterruptIn and fall() mode on a real button |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 38 | void fake_button_press() { |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 39 | int v = button_res->get_value_int() + 1; |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 40 | |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 41 | button_res->set_value(v); |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 42 | |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 43 | printf("Simulated button clicked %d times\n", v); |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 44 | } |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 45 | |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 46 | /** |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 47 | * PUT handler |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 48 | * @param resource The resource that triggered the callback |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 49 | * @param newValue Updated value for the resource |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 50 | */ |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 51 | void pattern_updated(MbedCloudClientResource *resource, m2m::String newValue) { |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 52 | printf("PUT received, new value: %s\n", newValue.c_str()); |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 53 | } |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 54 | |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 55 | /** |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 56 | * POST handler |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 57 | * @param resource The resource that triggered the callback |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 58 | * @param buffer If a body was passed to the POST function, this contains the data. |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 59 | * Note that the buffer is deallocated after leaving this function, so copy it if you need it longer. |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 60 | * @param size Size of the body |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 61 | */ |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 62 | void blink_callback(MbedCloudClientResource *resource, const uint8_t *buffer, uint16_t size) { |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 63 | printf("POST received. Going to blink LED pattern: %s\n", pattern_res->get_value().c_str()); |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 64 | |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 65 | static DigitalOut augmentedLed(LED1); // LED that is used for blinking the pattern |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 66 | |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 67 | // Parse the pattern string, and toggle the LED in that pattern |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 68 | string s = std::string(pattern_res->get_value().c_str()); |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 69 | size_t i = 0; |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 70 | size_t pos = s.find(':'); |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 71 | while (pos != string::npos) { |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 72 | wait_ms(atoi(s.substr(i, pos - i).c_str())); |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 73 | augmentedLed = !augmentedLed; |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 74 | |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 75 | i = ++pos; |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 76 | pos = s.find(':', pos); |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 77 | |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 78 | if (pos == string::npos) { |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 79 | wait_ms(atoi(s.substr(i, s.length()).c_str())); |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 80 | augmentedLed = !augmentedLed; |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 81 | } |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 82 | } |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 83 | } |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 84 | |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 85 | /** |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 86 | * Notification callback handler |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 87 | * @param resource The resource that triggered the callback |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 88 | * @param status The delivery status of the notification |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 89 | */ |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 90 | void button_callback(MbedCloudClientResource *resource, const NoticationDeliveryStatus status) { |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 91 | printf("Button notification, status %s (%d)\n", MbedCloudClientResource::delivery_status_to_string(status), status); |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 92 | } |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 93 | |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 94 | /** |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 95 | * Registration callback handler |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 96 | * @param endpoint Information about the registered endpoint such as the name (so you can find it back in portal) |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 97 | */ |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 98 | void registered(const ConnectorClientEndpointInfo *endpoint) { |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 99 | printf("Connected to Mbed Cloud. Endpoint Name: %s\n", endpoint->internal_endpoint_name.c_str()); |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 100 | } |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 101 | |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 102 | int main(void) { |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 103 | printf("Starting Simple Mbed Cloud Client example\n"); |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 104 | printf("Connecting to the network using Ethernet...\n"); |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 105 | |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 106 | // Connect to the internet (DHCP is expected to be on) |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 107 | EthernetInterface net; |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 108 | nsapi_error_t status = net.connect(); |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 109 | |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 110 | if (status != 0) { |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 111 | printf("Connecting to the network failed %d!\n", status); |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 112 | return -1; |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 113 | } |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 114 | |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 115 | printf("Connected to the network successfully. IP address: %s\n", net.get_ip_address()); |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 116 | |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 117 | // SimpleMbedCloudClient handles registering over LwM2M to Mbed Cloud |
davwal04@E108444.Emea.Arm.com | 10:8da380655d09 | 118 | SimpleMbedCloudClient client(&net, &bd, &fs); |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 119 | int client_status = client.init(); |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 120 | if (client_status != 0) { |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 121 | printf("Initializing Mbed Cloud Client failed (%d)\n", client_status); |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 122 | return -1; |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 123 | } |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 124 | |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 125 | // Creating resources, which can be written or read from the cloud |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 126 | button_res = client.create_resource("3200/0/5501", "button_count"); |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 127 | button_res->set_value(0); |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 128 | button_res->methods(M2MMethod::GET); |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 129 | button_res->observable(true); |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 130 | button_res->attach_notification_callback(button_callback); |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 131 | |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 132 | pattern_res = client.create_resource("3201/0/5853", "blink_pattern"); |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 133 | pattern_res->set_value("500:500:500:500:500:500:500:500"); |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 134 | pattern_res->methods(M2MMethod::GET | M2MMethod::PUT); |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 135 | pattern_res->attach_put_callback(pattern_updated); |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 136 | |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 137 | MbedCloudClientResource *blink_res = client.create_resource("3201/0/5850", "blink_action"); |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 138 | blink_res->methods(M2MMethod::POST); |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 139 | blink_res->attach_post_callback(blink_callback); |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 140 | |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 141 | printf("Initialized Mbed Cloud Client. Registering...\n"); |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 142 | |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 143 | // Callback that fires when registering is complete |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 144 | client.on_registered(®istered); |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 145 | |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 146 | // Register with Mbed Cloud |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 147 | client.register_and_connect(); |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 148 | |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 149 | // Placeholder for callback to update local resource when GET comes. |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 150 | // The timer fires on an interrupt context, but debounces it to the eventqueue, so it's safe to do network operations |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 151 | Ticker timer; |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 152 | timer.attach(eventQueue.event(&fake_button_press), 5.0); |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 153 | |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 154 | // You can easily run the eventQueue in a separate thread if required |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 155 | eventQueue.dispatch_forever(); |
davwal04@E108444.Emea.Arm.com | 6:2d0e0866f2e7 | 156 | } |