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https://github.com/espressif/esp-idf.git
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350 lines
11 KiB
C
350 lines
11 KiB
C
// Copyright 2019 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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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <stdbool.h>
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#include "esp_eth_com.h"
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#include "sdkconfig.h"
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#if CONFIG_ETH_USE_SPI_ETHERNET
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#include "driver/spi_master.h"
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#endif
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/**
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* @brief Ethernet MAC
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*
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*/
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typedef struct esp_eth_mac_s esp_eth_mac_t;
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/**
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* @brief Ethernet MAC
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*
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*/
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struct esp_eth_mac_s {
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/**
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* @brief Set mediator for Ethernet MAC
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*
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* @param[in] mac: Ethernet MAC instance
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* @param[in] eth: Ethernet mediator
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*
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* @return
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* - ESP_OK: set mediator for Ethernet MAC successfully
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* - ESP_ERR_INVALID_ARG: set mediator for Ethernet MAC failed because of invalid argument
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*
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*/
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esp_err_t (*set_mediator)(esp_eth_mac_t *mac, esp_eth_mediator_t *eth);
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/**
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* @brief Initialize Ethernet MAC
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*
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* @param[in] mac: Ethernet MAC instance
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*
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* @return
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* - ESP_OK: initialize Ethernet MAC successfully
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* - ESP_ERR_TIMEOUT: initialize Ethernet MAC failed because of timeout
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* - ESP_FAIL: initialize Ethernet MAC failed because some other error occurred
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*
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*/
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esp_err_t (*init)(esp_eth_mac_t *mac);
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/**
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* @brief Deinitialize Ethernet MAC
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*
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* @param[in] mac: Ethernet MAC instance
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*
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* @return
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* - ESP_OK: deinitialize Ethernet MAC successfully
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* - ESP_FAIL: deinitialize Ethernet MAC failed because some error occurred
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*
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*/
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esp_err_t (*deinit)(esp_eth_mac_t *mac);
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/**
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* @brief Start Ethernet MAC
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*
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* @param[in] mac: Ethernet MAC instance
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*
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* @return
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* - ESP_OK: start Ethernet MAC successfully
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* - ESP_FAIL: start Ethernet MAC failed because some other error occurred
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*
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*/
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esp_err_t (*start)(esp_eth_mac_t *mac);
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/**
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* @brief Stop Ethernet MAC
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*
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* @param[in] mac: Ethernet MAC instance
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*
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* @return
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* - ESP_OK: stop Ethernet MAC successfully
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* - ESP_FAIL: stop Ethernet MAC failed because some error occurred
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*
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*/
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esp_err_t (*stop)(esp_eth_mac_t *mac);
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/**
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* @brief Transmit packet from Ethernet MAC
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*
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* @param[in] mac: Ethernet MAC instance
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* @param[in] buf: packet buffer to transmit
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* @param[in] length: length of packet
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*
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* @return
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* - ESP_OK: transmit packet successfully
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* - ESP_ERR_INVALID_ARG: transmit packet failed because of invalid argument
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* - ESP_ERR_INVALID_STATE: transmit packet failed because of wrong state of MAC
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* - ESP_FAIL: transmit packet failed because some other error occurred
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*
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*/
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esp_err_t (*transmit)(esp_eth_mac_t *mac, uint8_t *buf, uint32_t length);
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/**
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* @brief Receive packet from Ethernet MAC
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*
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* @param[in] mac: Ethernet MAC instance
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* @param[out] buf: packet buffer which will preserve the received frame
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* @param[out] length: length of the received packet
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*
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* @note Memory of buf is allocated in the Layer2, make sure it get free after process.
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* @note Before this function got invoked, the value of "length" should set by user, equals the size of buffer.
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* After the function returned, the value of "length" means the real length of received data.
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*
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* @return
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* - ESP_OK: receive packet successfully
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* - ESP_ERR_INVALID_ARG: receive packet failed because of invalid argument
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* - ESP_ERR_INVALID_SIZE: input buffer size is not enough to hold the incoming data.
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* in this case, value of returned "length" indicates the real size of incoming data.
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* - ESP_FAIL: receive packet failed because some other error occurred
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*
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*/
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esp_err_t (*receive)(esp_eth_mac_t *mac, uint8_t *buf, uint32_t *length);
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/**
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* @brief Read PHY register
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*
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* @param[in] mac: Ethernet MAC instance
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* @param[in] phy_addr: PHY chip address (0~31)
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* @param[in] phy_reg: PHY register index code
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* @param[out] reg_value: PHY register value
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*
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* @return
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* - ESP_OK: read PHY register successfully
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* - ESP_ERR_INVALID_ARG: read PHY register failed because of invalid argument
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* - ESP_ERR_INVALID_STATE: read PHY register failed because of wrong state of MAC
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* - ESP_ERR_TIMEOUT: read PHY register failed because of timeout
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* - ESP_FAIL: read PHY register failed because some other error occurred
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*
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*/
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esp_err_t (*read_phy_reg)(esp_eth_mac_t *mac, uint32_t phy_addr, uint32_t phy_reg, uint32_t *reg_value);
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/**
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* @brief Write PHY register
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*
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* @param[in] mac: Ethernet MAC instance
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* @param[in] phy_addr: PHY chip address (0~31)
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* @param[in] phy_reg: PHY register index code
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* @param[in] reg_value: PHY register value
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*
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* @return
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* - ESP_OK: write PHY register successfully
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* - ESP_ERR_INVALID_STATE: write PHY register failed because of wrong state of MAC
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* - ESP_ERR_TIMEOUT: write PHY register failed because of timeout
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* - ESP_FAIL: write PHY register failed because some other error occurred
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*
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*/
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esp_err_t (*write_phy_reg)(esp_eth_mac_t *mac, uint32_t phy_addr, uint32_t phy_reg, uint32_t reg_value);
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/**
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* @brief Set MAC address
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*
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* @param[in] mac: Ethernet MAC instance
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* @param[in] addr: MAC address
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*
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* @return
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* - ESP_OK: set MAC address successfully
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* - ESP_ERR_INVALID_ARG: set MAC address failed because of invalid argument
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* - ESP_FAIL: set MAC address failed because some other error occurred
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*
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*/
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esp_err_t (*set_addr)(esp_eth_mac_t *mac, uint8_t *addr);
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/**
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* @brief Get MAC address
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*
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* @param[in] mac: Ethernet MAC instance
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* @param[out] addr: MAC address
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*
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* @return
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* - ESP_OK: get MAC address successfully
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* - ESP_ERR_INVALID_ARG: get MAC address failed because of invalid argument
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* - ESP_FAIL: get MAC address failed because some other error occurred
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*
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*/
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esp_err_t (*get_addr)(esp_eth_mac_t *mac, uint8_t *addr);
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/**
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* @brief Set speed of MAC
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*
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* @param[in] ma:c Ethernet MAC instance
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* @param[in] speed: MAC speed
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*
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* @return
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* - ESP_OK: set MAC speed successfully
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* - ESP_ERR_INVALID_ARG: set MAC speed failed because of invalid argument
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* - ESP_FAIL: set MAC speed failed because some other error occurred
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*
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*/
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esp_err_t (*set_speed)(esp_eth_mac_t *mac, eth_speed_t speed);
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/**
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* @brief Set duplex mode of MAC
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*
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* @param[in] mac: Ethernet MAC instance
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* @param[in] duplex: MAC duplex
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*
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* @return
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* - ESP_OK: set MAC duplex mode successfully
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* - ESP_ERR_INVALID_ARG: set MAC duplex failed because of invalid argument
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* - ESP_FAIL: set MAC duplex failed because some other error occurred
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*
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*/
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esp_err_t (*set_duplex)(esp_eth_mac_t *mac, eth_duplex_t duplex);
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/**
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* @brief Set link status of MAC
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*
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* @param[in] mac: Ethernet MAC instance
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* @param[in] link: Link status
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*
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* @return
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* - ESP_OK: set link status successfully
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* - ESP_ERR_INVALID_ARG: set link status failed because of invalid argument
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* - ESP_FAIL: set link status failed because some other error occurred
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*
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*/
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esp_err_t (*set_link)(esp_eth_mac_t *mac, eth_link_t link);
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/**
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* @brief Set promiscuous of MAC
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*
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* @param[in] mac: Ethernet MAC instance
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* @param[in] enable: set true to enable promiscuous mode; set false to disable promiscuous mode
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*
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* @return
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* - ESP_OK: set promiscuous mode successfully
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* - ESP_FAIL: set promiscuous mode failed because some error occurred
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*
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*/
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esp_err_t (*set_promiscuous)(esp_eth_mac_t *mac, bool enable);
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/**
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* @brief Free memory of Ethernet MAC
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*
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* @param[in] mac: Ethernet MAC instance
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*
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* @return
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* - ESP_OK: free Ethernet MAC instance successfully
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* - ESP_FAIL: free Ethernet MAC instance failed because some error occurred
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*
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*/
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esp_err_t (*del)(esp_eth_mac_t *mac);
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};
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/**
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* @brief Configuration of Ethernet MAC object
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*
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*/
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typedef struct {
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uint32_t sw_reset_timeout_ms; /*!< Software reset timeout value (Unit: ms) */
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uint32_t rx_task_stack_size; /*!< Stack size of the receive task */
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uint32_t rx_task_prio; /*!< Priority of the receive task */
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int smi_mdc_gpio_num; /*!< SMI MDC GPIO number */
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int smi_mdio_gpio_num; /*!< SMI MDIO GPIO number */
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uint32_t flags; /*!< Flags that specify extra capability for mac driver */
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} eth_mac_config_t;
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#define ETH_MAC_FLAG_WORK_WITH_CACHE_DISABLE (1 << 0) /*!< MAC driver can work when cache is disabled */
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/**
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* @brief Default configuration for Ethernet MAC object
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*
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*/
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#define ETH_MAC_DEFAULT_CONFIG() \
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{ \
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.sw_reset_timeout_ms = 100, \
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.rx_task_stack_size = 4096, \
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.rx_task_prio = 15, \
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.smi_mdc_gpio_num = 23, \
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.smi_mdio_gpio_num = 18, \
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.flags = 0, \
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}
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#if CONFIG_ETH_USE_ESP32_EMAC
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/**
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* @brief Create ESP32 Ethernet MAC instance
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*
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* @param config: Ethernet MAC configuration
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*
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* @return
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* - instance: create MAC instance successfully
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* - NULL: create MAC instance failed because some error occurred
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*/
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esp_eth_mac_t *esp_eth_mac_new_esp32(const eth_mac_config_t *config);
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#endif
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#if CONFIG_ETH_SPI_ETHERNET_DM9051
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/**
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* @brief DM9051 specific configuration
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*
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*/
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typedef struct {
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spi_device_handle_t spi_hdl; /*!< Handle of SPI device driver */
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int int_gpio_num; /*!< Interrupt GPIO number */
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} eth_dm9051_config_t;
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/**
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* @brief Default DM9051 specific configuration
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*
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*/
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#define ETH_DM9051_DEFAULT_CONFIG(spi_device) \
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{ \
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.spi_hdl = spi_device, \
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.int_gpio_num = 4, \
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}
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/**
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* @brief Create DM9051 Ethernet MAC instance
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*
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* @param dm9051_config: DM9051 specific configuration
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* @param mac_config: Ethernet MAC configuration
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*
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* @return
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* - instance: create MAC instance successfully
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* - NULL: create MAC instance failed because some error occurred
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*/
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esp_eth_mac_t *esp_eth_mac_new_dm9051(const eth_dm9051_config_t *dm9051_config, const eth_mac_config_t *mac_config);
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#endif
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#if CONFIG_ETH_USE_OPENETH
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esp_eth_mac_t *esp_eth_mac_new_openeth(const eth_mac_config_t *config);
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#endif // CONFIG_ETH_USE_OPENETH
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#ifdef __cplusplus
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}
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#endif
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