61 lines
2.6 KiB
ReStructuredText
61 lines
2.6 KiB
ReStructuredText
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Wi-Fi Provisioning
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==================
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Overview
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--------
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This component provides protocomm endpoint handler - `wifi_prov_config_data_handler` - and related protobuf framework which can be used for Wi-Fi configuration in the context of device provisioning, though it may be used in non-provisioning cases as well. The configuration consists of three commands :
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* `get_status` - For querying the Wi-Fi connection status
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* `set_config` - For setting the Wi-Fi connection credentials
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* `apply_config` - For applying the credentials saved during `set_config` and (re)start the Wi-Fi station
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The way this is supposed to work is that the desired Wi-Fi configuration for the ESP32, which is to run as a station and thus connect to an AP with certain credentials, is to be sent during `set_config`. Then `apply_config` is supposed to start (or restart) the Wi-Fi in station mode with the previously set AP credentials. Afterwords, `get_config` command is used to probe the device continuously for Wi-Fi connection status, to ensure that the connection was indeed successful. If the connection failed, then appropriate status code along with disconnection reason, is to be conveyed through `get_config`.
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Application Example
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-------------------
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.. highlight:: c
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::
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esp_err_t get_status_handler(wifi_prov_config_get_data_t *resp_data)
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{
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/* Fill the wifi_prov_config_get_data_t structure
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* with Wi-Fi station connection status information. */
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return ESP_OK;
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}
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esp_err_t set_config_handler(const wifi_prov_config_set_data_t *req_data)
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{
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/* Copy contents of req_data->ssid and req_data->password
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* which are Wi-Fi AP credentials to which the device will connect */
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return ESP_OK;
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}
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esp_err_t apply_config_handler(void)
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{
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/* Apply the Wi-Fi STA credentials saved during set_config */
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return ESP_OK;
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}
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/* Structure with various config command handlers to be passed
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* as private data during endpoint registration with protocomm */
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wifi_prov_config_handlers_t wifi_prov_handlers = {
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.get_status_handler = get_status_handler,
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.set_config_handler = set_config_handler,
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.apply_config_handler = apply_config_handler,
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};
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/* Set the endpoint handler */
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protocomm_add_endpoint(pc, "wifi_config_endpoint",
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wifi_prov_config_data_handler,
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(void *) &wifi_prov_handlers);
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API Reference
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-------------
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.. include:: /_build/inc/wifi_config.inc
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