ESP-IDF
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Outline
#include <stdio.h>
#include <string.h>
#include <esp_err.h>
#include <esp_log.h>
#include <protocomm_ble.h>
#include <esp_local_ctrl.h>
#include "esp_local_ctrl_priv.h"
#define LOCAL_CTRL_VERSION
TAG
start_ble_transport(protocomm_t *, const esp_local_ctrl_transport_config_t *)
stop_ble_transport(protocomm_t *)
copy_ble_config(esp_local_ctrl_transport_config_t *, const esp_local_ctrl_transport_config_t *)
declare_endpoint(esp_local_ctrl_transport_config_t *, const char *, uint16_t)
free_config(esp_local_ctrl_transport_config_t *)
esp_local_ctrl_get_transport_ble()
Files
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SourceVuESP-IDF Framework and ExamplesESP-IDFcomponents/esp_local_ctrl/src/esp_local_ctrl_transport_ble.c
 
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// Copyright 2019 Espressif Systems (Shanghai) PTE LTD // // Licensed under the Apache License, Version 2.0 (the "License"); // you may not use this file except in compliance with the License. // You may obtain a copy of the License at // // http://www.apache.org/licenses/LICENSE-2.0 // // Unless required by applicable law or agreed to in writing, software // distributed under the License is distributed on an "AS IS" BASIS, // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. // See the License for the specific language governing permissions and // limitations under the License. #include <stdio.h> #include <string.h> #include <esp_err.h> #include <esp_log.h> #include <protocomm_ble.h> #include <esp_local_ctrl.h> #include "esp_local_ctrl_priv.h"7 includes #define LOCAL_CTRL_VERSION "v1.0" static const char *TAG = "esp_local_ctrl_transport_ble"; static esp_err_t start_ble_transport(protocomm_t *pc, const esp_local_ctrl_transport_config_t *config) { if (!config || !config->ble) { ESP_LOGE(TAG, "NULL configuration provided"); return ESP_ERR_INVALID_ARG; }{...} return protocomm_ble_start(pc, config->ble); }{ ... } static void stop_ble_transport(protocomm_t *pc) { protocomm_ble_stop(pc); }{ ... } static esp_err_t copy_ble_config(esp_local_ctrl_transport_config_t *dest_config, const esp_local_ctrl_transport_config_t *src_config) { if (!dest_config || !src_config || !src_config->ble) { ESP_LOGE(TAG, "NULL arguments provided"); return ESP_ERR_INVALID_ARG; }{...} dest_config->ble = calloc(1, sizeof(protocomm_ble_config_t)); if (!dest_config->ble) { ESP_LOGE(TAG, "Failed to allocate memory for BLE transport config"); return ESP_ERR_NO_MEM; }{...} /* Copy BLE device name */ memcpy(dest_config->ble->device_name, src_config->ble->device_name, sizeof(src_config->ble->device_name)); /* Copy Service UUID */ memcpy(dest_config->ble->service_uuid, src_config->ble->service_uuid, sizeof(src_config->ble->service_uuid)); dest_config->ble->nu_lookup_count = 0; if (src_config->ble->nu_lookup_count) { /* Copy any provided name-uuid lookup table */ dest_config->ble->nu_lookup = calloc(src_config->ble->nu_lookup_count, sizeof(protocomm_ble_name_uuid_t)); if (!dest_config->ble->nu_lookup) { ESP_LOGE(TAG, "Failed to allocate memory for BLE characteristic names"); free(dest_config->ble); return ESP_ERR_NO_MEM; }{...} for (uint16_t i = 0; i < src_config->ble->nu_lookup_count; i++) { dest_config->ble->nu_lookup[i].uuid = src_config->ble->nu_lookup[i].uuid; if (!src_config->ble->nu_lookup[i].name) { ESP_LOGE(TAG, "Endpoint name cannot be null"); return ESP_ERR_INVALID_ARG; }{...} dest_config->ble->nu_lookup[i].name = strdup(src_config->ble->nu_lookup[i].name); if (!dest_config->ble->nu_lookup[i].name) { ESP_LOGE(TAG, "Failed to allocate memory for endpoint name"); return ESP_ERR_NO_MEM; }{...} dest_config->ble->nu_lookup_count++; }{...} }{...} return ESP_OK; }{ ... } static esp_err_t declare_endpoint(esp_local_ctrl_transport_config_t *config, const char *ep_name, uint16_t ep_uuid) { if (!config || !config->ble) { ESP_LOGE(TAG, "NULL configuration provided"); return ESP_ERR_INVALID_ARG; }{...} protocomm_ble_name_uuid_t *nu_lookup = realloc(config->ble->nu_lookup, (config->ble->nu_lookup_count + 1) * sizeof(protocomm_ble_name_uuid_t)); if (!nu_lookup) { ESP_LOGE(TAG, "Failed to allocate memory for new endpoint entry"); return ESP_ERR_NO_MEM; }{...} config->ble->nu_lookup = nu_lookup; nu_lookup[config->ble->nu_lookup_count].uuid = ep_uuid; nu_lookup[config->ble->nu_lookup_count].name = strdup(ep_name); if (!nu_lookup[config->ble->nu_lookup_count].name) { ESP_LOGE(TAG, "Failed to allocate memory for new endpoint name"); return ESP_ERR_NO_MEM; }{...} config->ble->nu_lookup_count++; return ESP_OK; }{ ... } static void free_config(esp_local_ctrl_transport_config_t *config) { if (config && config->ble) { for (unsigned int i = 0; i < config->ble->nu_lookup_count; i++) { free((void*) config->ble->nu_lookup[i].name); }{...} free(config->ble->nu_lookup); free(config->ble); config->ble = NULL; }{...} }{ ... } const esp_local_ctrl_transport_t *esp_local_ctrl_get_transport_ble(void) { static const esp_local_ctrl_transport_t tp = { .start_service = start_ble_transport, .stop_service = stop_ble_transport, .copy_config = copy_ble_config, .declare_ep = declare_endpoint, .free_config = free_config }{...}; return &tp; }{ ... };
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