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// Copyright 2018-2019 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.
#ifndef _ESP_WIFI_INTERNAL_H
#define _ESP_WIFI_INTERNAL_H
#ifdef __cplusplus
extern "C" {
#endif
typedef enum {
WIFI_RX_PBUF_IRAM, /** save rx buffer to iram and upload to tcpip*/
WIFI_RX_PBUF_DRAM, /** save rx buffer to dram and upload to tcpip */
} wifi_rx_pbuf_mem_type_t;
/**
* @brief Set WIFI received TCP/IP data cache ram type
*
* @param type if use dram
*/
void esp_wifi_set_rx_pbuf_mem_type(wifi_rx_pbuf_mem_type_t type);
/**
* @brief get WIFI received TCP/IP data cache ram type
*
* @return true if use dram or false
*/
wifi_rx_pbuf_mem_type_t esp_wifi_get_rx_pbuf_mem_type(void);
int8_t esp_wifi_get_ap_rssi(void);
/**
* @brief The RX callback function when receive probe request packet.
* When probe request packet is received, the callback function will be called.
*
* @param frame Data of received probe request.
* @param len length of received probe request.
* @param rssi rssi of received probe request.
*/
typedef void (*wifi_sta_rx_probe_req_t)(const uint8_t *frame, int len, int rssi);
/**
* @brief Register the RX callback function when receive probe request.
*
* When probe request packet is received, the registered callback function will be called.
*
* @param cb callback
*
* @return
* - ESP_OK: succeed
* - ESP_ERR_WIFI_NOT_INIT: WiFi is not initialized by esp_wifi_init
*/
esp_err_t esp_wifi_set_sta_rx_probe_req(wifi_sta_rx_probe_req_t cb);
/**
* @brief free the rx buffer which allocated by wifi driver
*
* @param void* buffer: rx buffer pointer
*/
void esp_wifi_internal_free_rx_buffer(void* buffer);
/**
* @brief transmit the buffer via wifi driver
*
* @param wifi_interface_t wifi_if : wifi interface id
* @param void *buffer : the buffer to be tansmit
* @param uint16_t len : the length of buffer
*
* @return
* - ERR_OK : Successfully transmit the buffer to wifi driver
* - ERR_MEM : Out of memory
* - ERR_IF : WiFi driver error
* - ERR_ARG : Invalid argument
*/
int esp_wifi_internal_tx(wifi_interface_t wifi_if, void *buffer, uint16_t len);
/**
* @brief The WiFi RX callback function
*
* Each time the WiFi need to forward the packets to high layer, the callback function will be called
*/
typedef esp_err_t (*wifi_rxcb_t)(void *buffer, uint16_t len, void *eb);
/**
* @brief Set the WiFi RX callback
*
* @attention 1. Currently we support only one RX callback for each interface
*
* @param wifi_interface_t ifx : interface
* @param wifi_rxcb_t fn : WiFi RX callback
*
* @return
* - ESP_OK : succeed
* - others : fail
*/
esp_err_t esp_wifi_internal_reg_rxcb(wifi_interface_t ifx, wifi_rxcb_t fn);
#ifdef __cplusplus
}
#endif
#endif /* _ESP_WIFI_INTERNAL_H */