52 lines
1.5 KiB
C
52 lines
1.5 KiB
C
// Copyright 2015-2017 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.
|
|
|
|
#ifndef __ESP_GATT_COMMON_API_H__
|
|
#define __ESP_GATT_COMMON_API_H__
|
|
|
|
#include <stdint.h>
|
|
#include <stdbool.h>
|
|
|
|
#include "esp_err.h"
|
|
#include "esp_bt_defs.h"
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
// Maximum Transmission Unit used in GATT
|
|
#define ESP_GATT_DEF_BLE_MTU_SIZE 23 /* relate to GATT_DEF_BLE_MTU_SIZE in stack/gatt_api.h */
|
|
|
|
// Maximum Transmission Unit allowed in GATT
|
|
#define ESP_GATT_MAX_MTU_SIZE 517 /* relate to GATT_MAX_MTU_SIZE in stack/gatt_api.h */
|
|
|
|
/**
|
|
* @brief This function is called to set local MTU,
|
|
* the function is called before BLE connection.
|
|
*
|
|
* @param[in] mtu: the size of MTU.
|
|
*
|
|
* @return
|
|
* - ESP_OK: success
|
|
* - other: failed
|
|
*
|
|
*/
|
|
extern esp_err_t esp_ble_gatt_set_local_mtu (uint16_t mtu);
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif /* __ESP_GATT_COMMON_API_H__ */
|