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https://github.com/0xFEEDC0DE64/arduino-esp32.git
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101 lines
3.1 KiB
C
101 lines
3.1 KiB
C
// Copyright 2018 Espressif Systems (Shanghai) PTE LTD
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#pragma once
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#include <protocomm.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* BLE device name cannot be larger than this value
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*/
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#define MAX_BLE_DEVNAME_LEN 13
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/**
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* @brief This structure maps handler required by protocomm layer to
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* UUIDs which are used to uniquely identify BLE characteristics
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* from a smartphone or a similar client device.
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*/
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typedef struct name_uuid {
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/**
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* Name of the handler, which is passed to protocomm layer
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*/
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const char *name;
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/**
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* UUID to be assigned to the BLE characteristic which is
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* mapped to the handler
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*/
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uint16_t uuid;
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} protocomm_ble_name_uuid_t;
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/**
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* @brief Config parameters for protocomm BLE service
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*/
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typedef struct {
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/**
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* BLE device name being broadcast at the time of provisioning
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*/
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char device_name[MAX_BLE_DEVNAME_LEN];
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uint8_t service_uuid[16]; /*!< SSID of the provisioning service */
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ssize_t nu_lookup_count; /*!< Number of entries in the Name-UUID lookup table */
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/**
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* Pointer to the Name-UUID lookup table
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*/
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protocomm_ble_name_uuid_t *nu_lookup;
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} protocomm_ble_config_t;
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/**
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* @brief Start Bluetooth Low Energy based transport layer for provisioning
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*
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* Initialize and start required BLE service for provisioning. This includes
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* the initialization for characteristics/service for BLE.
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*
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* @param[in] pc Protocomm instance pointer obtained from protocomm_new()
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* @param[in] config Pointer to config structure for initializing BLE
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*
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* @return
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* - ESP_OK : Success
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* - ESP_FAIL : Simple BLE start error
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* - ESP_ERR_NO_MEM : Error allocating memory for internal resources
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* - ESP_ERR_INVALID_STATE : Error in ble config
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* - ESP_ERR_INVALID_ARG : Null arguments
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*/
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esp_err_t protocomm_ble_start(protocomm_t *pc, const protocomm_ble_config_t *config);
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/**
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* @brief Stop Bluetooth Low Energy based transport layer for provisioning
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*
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* Stops service/task responsible for BLE based interactions for provisioning
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*
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* @note You might want to optionally reclaim memory from Bluetooth.
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* Refer to the documentation of `esp_bt_mem_release` in that case.
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*
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* @param[in] pc Same protocomm instance that was passed to protocomm_ble_start()
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*
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* @return
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* - ESP_OK : Success
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* - ESP_FAIL : Simple BLE stop error
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* - ESP_ERR_INVALID_ARG : Null / incorrect protocomm instance
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*/
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esp_err_t protocomm_ble_stop(protocomm_t *pc);
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#ifdef __cplusplus
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}
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#endif
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