// Copyright 2015-2016 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_ETH_H__
#define __ESP_ETH_H__
#include <stdbool.h>
#include <stdint.h>
#include "esp_err.h"
#ifdef __cplusplus
extern "C" {
#endif
typedef enum {
ETH_MODE_RMII = 0,
ETH_MODE_MII,
} eth_mode_t;
typedef enum {
ETH_SPEED_MODE_10M = 0,
ETH_SPEED_MODE_100M,
} eth_speed_mode_t;
typedef enum {
ETH_MODE_HALFDUPLEX = 0,
ETH_MODE_FULLDUPLEX,
} eth_duplex_mode_t;
typedef enum {
PHY0 = 0,
PHY1,
PHY2,
PHY3,
PHY4,
PHY5,
PHY6,
PHY7,
PHY8,
PHY9,
PHY10,
PHY11,
PHY12,
PHY13,
PHY14,
PHY15,
PHY16,
PHY17,
PHY18,
PHY19,
PHY20,
PHY21,
PHY22,
PHY23,
PHY24,
PHY25,
PHY26,
PHY27,
PHY28,
PHY29,
PHY30,
PHY31,
} eth_phy_base_t;
typedef bool (*eth_phy_check_link_func)(void);
typedef void (*eth_phy_check_init_func)(void);
typedef eth_speed_mode_t (*eth_phy_get_speed_mode_func)(void);
typedef eth_duplex_mode_t (*eth_phy_get_duplex_mode_func)(void);
typedef void (*eth_phy_func)(void);
typedef esp_err_t (*eth_tcpip_input_func)(void *buffer, uint16_t len, void *eb);
typedef void (*eth_gpio_config_func)(void);
typedef bool (*eth_phy_get_partner_pause_enable_func)(void);
typedef void (*eth_phy_power_enable_func)(bool enable);
/**
* @brief ethernet configuration
*
*/
typedef struct {
eth_phy_base_t phy_addr; /*!< phy base addr (0~31) */
eth_mode_t mac_mode; /*!< mac mode only support RMII now */
eth_tcpip_input_func tcpip_input; /*!< tcpip input func */
eth_phy_func phy_init; /*!< phy init func */
eth_phy_check_link_func phy_check_link; /*!< phy check link func */
eth_phy_check_init_func phy_check_init; /*!< phy check init func */
eth_phy_get_speed_mode_func phy_get_speed_mode; /*!< phy check init func */
eth_phy_get_duplex_mode_func phy_get_duplex_mode; /*!< phy check init func */
eth_gpio_config_func gpio_config; /*!< gpio config func */
bool flow_ctrl_enable; /*!< flag of flow ctrl enable */
eth_phy_get_partner_pause_enable_func phy_get_partner_pause_enable; /*!< get partner pause enable */
eth_phy_power_enable_func phy_power_enable; /*!< enable or disable phy power */
} eth_config_t;
/**
* @brief Init ethernet mac
*
* @note config can not be NULL,and phy chip must be suitable to phy init func.
*
* @param[in] config mac init data.
*
* @return
* - ESP_OK
* - ESP_FAIL
*/
esp_err_t esp_eth_init(eth_config_t *config);
/**
* @brief Init Ethernet mac driver only
*
* For the most part, you need not call this function directly. It gets called
* from esp_eth_init().
*
* This function may be called, if you only need to initialize the Ethernet
* driver without having to use the network stack on top.
*
* @note config can not be NULL,and phy chip must be suitable to phy init func.
* @param[in] config mac init data.
*
* @return
* - ESP_OK
* - ESP_FAIL
*/
esp_err_t esp_eth_init_internal(eth_config_t *config);
/**
* @brief Send packet from tcp/ip to mac
*
* @note buf can not be NULL,size must be less than 1580
*
* @param[in] buf: start address of packet data.
*
* @param[in] size: size (byte) of packet data.
*
* @return
* - ESP_OK
* - ESP_FAIL
*/
esp_err_t esp_eth_tx(uint8_t *buf, uint16_t size);
/**
* @brief Enable ethernet interface
*
* @note Shout be called after esp_eth_init
*
* @return
* - ESP_OK
* - ESP_FAIL
*/
esp_err_t esp_eth_enable(void);
/**
* @brief Disable ethernet interface
*
* @note Shout be called after esp_eth_init
*
* @return
* - ESP_OK
* - ESP_FAIL
*/
esp_err_t esp_eth_disable(void);
/**
* @brief Get mac addr
*
* @note mac addr must be a valid unicast address
*
* @param[out] mac: start address of mac address.
*/
void esp_eth_get_mac(uint8_t mac[6]);
/**
* @brief Read phy reg with smi interface.
*
* @note phy base addr must be right.
*
* @param[in] reg_num: phy reg num.
*
* @param[in] value: value which write to phy reg.
*/
void esp_eth_smi_write(uint32_t reg_num, uint16_t value);
/**
* @brief Read phy reg with smi interface.
*
* @note phy base addr must be right.
*
* @param[in] reg_num: phy reg num.
*
* @return value what read from phy reg
*/
uint16_t esp_eth_smi_read(uint32_t reg_num);
/**
* @brief Continuously read a PHY register over SMI interface, wait until the register has the desired value.
*
* @note PHY base address must be right.
*
* @param reg_num: PHY register number
* @param value: Value to wait for (masked with value_mask)
* @param value_mask: Mask of bits to match in the register.
* @param timeout_ms: Timeout to wait for this value (milliseconds). 0 means never timeout.
*
* @return ESP_OK if desired value matches, ESP_ERR_TIMEOUT if timed out.
*/
esp_err_t esp_eth_smi_wait_value(uint32_t reg_num, uint16_t value, uint16_t value_mask, int timeout_ms);
/**
* @brief Continuously read a PHY register over SMI interface, wait until the register has all bits in a mask set.
*
* @note PHY base address must be right.
*
* @param reg_num: PHY register number
* @param value_mask: Value mask to wait for (all bits in this mask must be set)
* @param timeout_ms: Timeout to wait for this value (milliseconds). 0 means never timeout.
*
* @return ESP_OK if desired value matches, ESP_ERR_TIMEOUT if timed out.
*/
static inline esp_err_t esp_eth_smi_wait_set(uint32_t reg_num, uint16_t value_mask, int timeout_ms) {
return esp_eth_smi_wait_value(reg_num, value_mask, value_mask, timeout_ms);
}
/**
* @brief Free emac rx buf.
*
* @note buf can not be null,and it is tcpip input buf.
*
* @param[in] buf: start address of recevie packet data.
*
*/
void esp_eth_free_rx_buf(void *buf);
#ifdef __cplusplus
}
#endif
#endif