178 lines
5.3 KiB
C
178 lines
5.3 KiB
C
// Copyright 2015-2016 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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// 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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/*
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* All the APIs declared here are internal only APIs, it can only be used by
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* espressif internal modules, such as SSC, LWIP, TCPIP adapter etc, espressif
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* customers are not recommended to use them.
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*
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* If someone really want to use specified APIs declared in here, please contact
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* espressif AE/developer to make sure you know the limitations or risk of
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* the API, otherwise you may get unexpected behavior!!!
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*
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*/
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#ifndef __ESP_WIFI_INTERNAL_H__
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#define __ESP_WIFI_INTERNAL_H__
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#include <stdint.h>
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#include <stdbool.h>
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#include "freertos/FreeRTOS.h"
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#include "freertos/queue.h"
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#include "rom/queue.h"
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#include "esp_err.h"
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#include "esp_wifi_types.h"
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#include "esp_event.h"
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#include "esp_wifi.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef struct {
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QueueHandle_t handle; /**< FreeRTOS queue handler */
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void *storage; /**< storage for FreeRTOS queue */
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} wifi_static_queue_t;
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/**
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* @brief Initialize Wi-Fi Driver
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* Alloc resource for WiFi driver, such as WiFi control structure, RX/TX buffer,
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* WiFi NVS structure among others.
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*
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* For the most part, you need not call this function directly. It gets called
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* from esp_wifi_init().
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*
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* This function may be called, if you only need to initialize the Wi-Fi driver
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* without having to use the network stack on top.
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*
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* @param config provide WiFi init configuration
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*
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* @return
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* - ESP_OK: succeed
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* - ESP_ERR_WIFI_NO_MEM: out of memory
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* - others: refer to error code esp_err.h
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*/
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esp_err_t esp_wifi_init_internal(const wifi_init_config_t *config);
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/**
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* @brief get whether the wifi driver is allowed to transmit data or not
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*
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* @return
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* - true : upper layer should stop to transmit data to wifi driver
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* - false : upper layer can transmit data to wifi driver
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*/
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bool esp_wifi_internal_tx_is_stop(void);
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/**
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* @brief free the rx buffer which allocated by wifi driver
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*
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* @param void* buffer: rx buffer pointer
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*/
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void esp_wifi_internal_free_rx_buffer(void* buffer);
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/**
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* @brief transmit the buffer via wifi driver
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*
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* @param wifi_interface_t wifi_if : wifi interface id
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* @param void *buffer : the buffer to be tansmit
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* @param u16_t len : the length of buffer
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*
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* @return
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* - ERR_OK : Successfully transmit the buffer to wifi driver
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* - ERR_MEM : Out of memory
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* - ERR_IF : WiFi driver error
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* - ERR_ARG : Invalid argument
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*/
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int esp_wifi_internal_tx(wifi_interface_t wifi_if, void *buffer, u16_t len);
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/**
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* @brief The WiFi RX callback function
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*
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* Each time the WiFi need to forward the packets to high layer, the callback function will be called
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*/
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typedef esp_err_t (*wifi_rxcb_t)(void *buffer, uint16_t len, void *eb);
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/**
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* @brief Set the WiFi RX callback
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*
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* @attention 1. Currently we support only one RX callback for each interface
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*
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* @param wifi_interface_t ifx : interface
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* @param wifi_rxcb_t fn : WiFi RX callback
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*
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* @return
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* - ESP_OK : succeed
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* - others : fail
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*/
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esp_err_t esp_wifi_internal_reg_rxcb(wifi_interface_t ifx, wifi_rxcb_t fn);
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/**
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* @brief Notify WIFI driver that the station got ip successfully
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*
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* @return
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* - ESP_OK : succeed
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* - others : fail
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*/
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esp_err_t esp_wifi_internal_set_sta_ip(void);
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/**
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* @brief Allocate a chunk of memory for WiFi driver
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*
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* @attention This API is not used for DMA memory allocation.
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*
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* @param size_t size : Size, in bytes, of the amount of memory to allocate
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*
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* @return A pointer to the memory allocated on success, NULL on failure
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*/
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void *wifi_malloc( size_t size );
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/**
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* @brief Reallocate a chunk of memory for WiFi driver
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*
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* @attention This API is not used for DMA memory allocation.
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*
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* @param void * ptr : Pointer to previously allocated memory, or NULL for a new allocation.
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* @param size_t size : Size, in bytes, of the amount of memory to allocate
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*
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* @return A pointer to the memory allocated on success, NULL on failure
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*/
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void *wifi_realloc( void *ptr, size_t size );
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/**
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* @brief Callocate memory for WiFi driver
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*
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* @attention This API is not used for DMA memory allocation.
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*
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* @param size_t n : Number of continuing chunks of memory to allocate
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* @param size_t size : Size, in bytes, of the amount of memory to allocate
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*
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* @return A pointer to the memory allocated on success, NULL on failure
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*/
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void *wifi_calloc( size_t n, size_t size );
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/**
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* @brief Update WiFi MAC time
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*
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* @param uint32_t time_delta : time duration since the WiFi/BT common clock is disabled
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*
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* @return Always returns ESP_OK
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*/
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esp_err_t esp_wifi_internal_update_mac_time( uint32_t time_delta );
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#ifdef __cplusplus
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}
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#endif
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#endif /* __ESP_WIFI_H__ */
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