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ETH.cpp
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/*
ETH.h - espre ETH PHY support.
Based on WiFi.h from Arduino WiFi shield library.
Copyright (c) 2011-2014 Arduino. All right reserved.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
// Disable the automatic pin remapping of the API calls in this file
#define ARDUINO_CORE_BUILD
#include "ETH.h"
#if CONFIG_ETH_ENABLED
#include "esp_system.h"
#include "esp_event.h"
#include "esp_eth.h"
#include "esp_eth_mac.h"
#include "esp_eth_com.h"
#include "driver/gpio.h"
#include "driver/spi_master.h"
#if CONFIG_ETH_USE_ESP32_EMAC
#if defined __has_include && __has_include("soc/emac_ext_struct.h")
#include "soc/emac_ext_struct.h"
#endif /* __has_include("soc/emac_ext_struct.h" */
#include "soc/rtc.h"
#endif /* CONFIG_ETH_USE_ESP32_EMAC */
#include "esp32-hal-periman.h"
#include "lwip/err.h"
#include "lwip/dns.h"
#include "esp_mac.h"
#include "esp_netif.h"
#include "esp_netif_types.h"
#include "esp_netif_defaults.h"
#include "esp_eth_phy.h"
#define NUM_SUPPORTED_ETH_PORTS 3
static ETHClass *_ethernets[NUM_SUPPORTED_ETH_PORTS] = {NULL, NULL, NULL};
static esp_event_handler_instance_t _eth_ev_instance = NULL;
static void _eth_event_cb(void *arg, esp_event_base_t event_base, int32_t event_id, void *event_data) {
if (event_base == ETH_EVENT) {
esp_eth_handle_t eth_handle = *((esp_eth_handle_t *)event_data);
for (int i = 0; i < NUM_SUPPORTED_ETH_PORTS; ++i) {
if (_ethernets[i] != NULL && _ethernets[i]->handle() == eth_handle) {
_ethernets[i]->_onEthEvent(event_id, event_data);
}
}
}
}
// This callback needs to be aware of which interface it should match against
static void onEthConnected(arduino_event_id_t event, arduino_event_info_t info) {
if (event == ARDUINO_EVENT_ETH_CONNECTED) {
uint8_t index = NUM_SUPPORTED_ETH_PORTS;
for (int i = 0; i < NUM_SUPPORTED_ETH_PORTS; ++i) {
if (_ethernets[i] != NULL && _ethernets[i]->handle() == info.eth_connected) {
index = i;
break;
}
}
if (index == NUM_SUPPORTED_ETH_PORTS) {
log_e("Could not find ETH interface with that handle!");
return;
}
#if CONFIG_LWIP_IPV6
if (_ethernets[index]->getStatusBits() & ESP_NETIF_WANT_IP6_BIT) {
esp_err_t err = esp_netif_create_ip6_linklocal(_ethernets[index]->netif());
if (err != ESP_OK) {
log_e("Failed to enable IPv6 Link Local on ETH: [%d] %s", err, esp_err_to_name(err));
} else {
log_v("Enabled IPv6 Link Local on %s", _ethernets[index]->desc());
}
}
#endif
}
}
esp_eth_handle_t ETHClass::handle() const {
return _eth_handle;
}
void ETHClass::_onEthEvent(int32_t event_id, void *event_data) {
arduino_event_t arduino_event;
arduino_event.event_id = ARDUINO_EVENT_MAX;
if (event_id == ETHERNET_EVENT_CONNECTED) {
log_v("%s Connected", desc());
arduino_event.event_id = ARDUINO_EVENT_ETH_CONNECTED;
arduino_event.event_info.eth_connected = handle();
setStatusBits(ESP_NETIF_CONNECTED_BIT);
} else if (event_id == ETHERNET_EVENT_DISCONNECTED) {
log_v("%s Disconnected", desc());
arduino_event.event_id = ARDUINO_EVENT_ETH_DISCONNECTED;
clearStatusBits(ESP_NETIF_CONNECTED_BIT | ESP_NETIF_HAS_IP_BIT | ESP_NETIF_HAS_LOCAL_IP6_BIT | ESP_NETIF_HAS_GLOBAL_IP6_BIT);
} else if (event_id == ETHERNET_EVENT_START) {
log_v("%s Started", desc());
arduino_event.event_id = ARDUINO_EVENT_ETH_START;
setStatusBits(ESP_NETIF_STARTED_BIT);
} else if (event_id == ETHERNET_EVENT_STOP) {
log_v("%s Stopped", desc());
arduino_event.event_id = ARDUINO_EVENT_ETH_STOP;
clearStatusBits(
ESP_NETIF_STARTED_BIT | ESP_NETIF_CONNECTED_BIT | ESP_NETIF_HAS_IP_BIT | ESP_NETIF_HAS_LOCAL_IP6_BIT | ESP_NETIF_HAS_GLOBAL_IP6_BIT
| ESP_NETIF_HAS_STATIC_IP_BIT
);
}
if (arduino_event.event_id < ARDUINO_EVENT_MAX) {
Network.postEvent(&arduino_event);
}
}
ETHClass::ETHClass(uint8_t eth_index)
: _eth_handle(NULL), _eth_index(eth_index), _phy_type(ETH_PHY_MAX), _glue_handle(NULL), _mac(NULL), _phy(NULL), _eth_started(false), _link_speed(100),
_full_duplex(true), _auto_negotiation(true)
#if ETH_SPI_SUPPORTS_CUSTOM
,
_spi(NULL)
#endif
,
_spi_freq_mhz(20), _pin_cs(-1), _pin_irq(-1), _pin_rst(-1), _pin_sck(-1), _pin_miso(-1), _pin_mosi(-1)
#if CONFIG_ETH_USE_ESP32_EMAC
,
_pin_mcd(-1), _pin_mdio(-1), _pin_power(-1), _pin_rmii_clock(-1)
#endif /* CONFIG_ETH_USE_ESP32_EMAC */
,
_task_stack_size(4096) {
}
ETHClass::~ETHClass() {}
bool ETHClass::ethDetachBus(void *bus_pointer) {
ETHClass *bus = (ETHClass *)bus_pointer;
bus->end();
return true;
}
void ETHClass::setTaskStackSize(size_t size) {
_task_stack_size = size;
}
#if CONFIG_ETH_USE_ESP32_EMAC
#if CONFIG_IDF_TARGET_ESP32
#define ETH_EMAC_DEFAULT_CONFIG() ETH_ESP32_EMAC_DEFAULT_CONFIG()
#elif CONFIG_IDF_TARGET_ESP32P4
// clang-format off
#define ETH_EMAC_DEFAULT_CONFIG() \
{ \
.smi_gpio = {.mdc_num = 31, .mdio_num = 52}, \
.interface = EMAC_DATA_INTERFACE_RMII, \
.clock_config = { \
.rmii = { \
.clock_mode = EMAC_CLK_EXT_IN, \
.clock_gpio = (emac_rmii_clock_gpio_t)ETH_RMII_CLK \
} \
}, \
.dma_burst_len = ETH_DMA_BURST_LEN_32, \
.intr_priority = 0, \
.emac_dataif_gpio = { \
.rmii = { \
.tx_en_num = ETH_RMII_TX_EN, \
.txd0_num = ETH_RMII_TX0, \
.txd1_num = ETH_RMII_TX1, \
.crs_dv_num = ETH_RMII_CRS_DV, \
.rxd0_num = ETH_RMII_RX0, \
.rxd1_num = ETH_RMII_RX1_EN \
} \
}, \
.clock_config_out_in = { \
.rmii = { \
.clock_mode = EMAC_CLK_EXT_IN, \
.clock_gpio = (emac_rmii_clock_gpio_t) - 1 \
} \
}, \
}
#endif
// clang-format on
bool ETHClass::begin(eth_phy_type_t type, int32_t phy_addr, int mdc, int mdio, int power, eth_clock_mode_t clock_mode) {
esp_err_t ret = ESP_OK;
if (_eth_index > 2) {
return false;
}
if (_esp_netif != NULL) {
return true;
}
if (phy_addr < ETH_PHY_ADDR_AUTO) {
log_e("Invalid PHY address: %d, set to ETH_PHY_ADDR_AUTO for auto detection", phy_addr);
return false;
}
perimanSetBusDeinit(ESP32_BUS_TYPE_ETHERNET_RMII, ETHClass::ethDetachBus);
perimanSetBusDeinit(ESP32_BUS_TYPE_ETHERNET_CLK, ETHClass::ethDetachBus);
perimanSetBusDeinit(ESP32_BUS_TYPE_ETHERNET_MCD, ETHClass::ethDetachBus);
perimanSetBusDeinit(ESP32_BUS_TYPE_ETHERNET_MDIO, ETHClass::ethDetachBus);
if (power != -1) {
perimanSetBusDeinit(ESP32_BUS_TYPE_ETHERNET_PWR, ETHClass::ethDetachBus);
}
Network.begin();
_ethernets[_eth_index] = this;
#if CONFIG_IDF_TARGET_ESP32
#undef DEFAULT_RMII_CLK_GPIO
#define DEFAULT_RMII_CLK_GPIO (emac_rmii_clock_gpio_t)(0)
#endif
eth_esp32_emac_config_t mac_config = ETH_EMAC_DEFAULT_CONFIG();
#if CONFIG_IDF_TARGET_ESP32
mac_config.clock_config.rmii.clock_mode = (clock_mode) ? EMAC_CLK_OUT : EMAC_CLK_EXT_IN;
mac_config.clock_config.rmii.clock_gpio = (1 == clock_mode) ? EMAC_APPL_CLK_OUT_GPIO
: (2 == clock_mode) ? EMAC_CLK_OUT_GPIO
: (3 == clock_mode) ? EMAC_CLK_OUT_180_GPIO
: EMAC_CLK_IN_GPIO;
#elif CONFIG_IDF_TARGET_ESP32P4
mac_config.clock_config.rmii.clock_mode = (emac_rmii_clock_mode_t)clock_mode;
#endif
mac_config.smi_gpio.mdc_num = digitalPinToGPIONumber(mdc);
mac_config.smi_gpio.mdio_num = digitalPinToGPIONumber(mdio);
_pin_mcd = digitalPinToGPIONumber(mdc);
_pin_mdio = digitalPinToGPIONumber(mdio);
_pin_rmii_clock = mac_config.clock_config.rmii.clock_gpio;
_pin_power = digitalPinToGPIONumber(power);
if (!perimanClearPinBus(_pin_rmii_clock)) {
return false;
}
if (!perimanClearPinBus(_pin_mcd)) {
return false;
}
if (!perimanClearPinBus(_pin_mdio)) {
return false;
}
if (!perimanClearPinBus(ETH_RMII_TX_EN)) {
return false;
}
if (!perimanClearPinBus(ETH_RMII_TX0)) {
return false;
}
if (!perimanClearPinBus(ETH_RMII_TX1)) {
return false;
}
if (!perimanClearPinBus(ETH_RMII_RX0)) {
return false;
}
if (!perimanClearPinBus(ETH_RMII_RX1_EN)) {
return false;
}
if (!perimanClearPinBus(ETH_RMII_CRS_DV)) {
return false;
}
if (_pin_power != -1) {
if (!perimanClearPinBus(_pin_power)) {
return false;
}
}
eth_mac_config_t eth_mac_config = ETH_MAC_DEFAULT_CONFIG();
eth_mac_config.sw_reset_timeout_ms = 1000;
eth_mac_config.rx_task_stack_size = _task_stack_size;
_mac = esp_eth_mac_new_esp32(&mac_config, ð_mac_config);
if (_mac == NULL) {
log_e("esp_eth_mac_new_esp32 failed");
return false;
}
eth_phy_config_t phy_config = ETH_PHY_DEFAULT_CONFIG();
phy_config.phy_addr = phy_addr;
phy_config.reset_gpio_num = _pin_power;
switch (type) {
#if ESP_IDF_VERSION >= ESP_IDF_VERSION_VAL(5, 4, 0)
case ETH_PHY_GENERIC: _phy = esp_eth_phy_new_generic(&phy_config); break;
#endif
case ETH_PHY_LAN8720: _phy = esp_eth_phy_new_lan87xx(&phy_config); break;
case ETH_PHY_TLK110: _phy = esp_eth_phy_new_ip101(&phy_config); break;
case ETH_PHY_RTL8201: _phy = esp_eth_phy_new_rtl8201(&phy_config); break;
case ETH_PHY_DP83848: _phy = esp_eth_phy_new_dp83848(&phy_config); break;
case ETH_PHY_KSZ8041: _phy = esp_eth_phy_new_ksz80xx(&phy_config); break;
case ETH_PHY_KSZ8081: _phy = esp_eth_phy_new_ksz80xx(&phy_config); break;
default: log_e("Unsupported PHY %d", type); break;
}
if (_phy == NULL) {
log_e("esp_eth_phy_new failed");
return false;
}
_eth_handle = NULL;
esp_eth_config_t eth_config = ETH_DEFAULT_CONFIG(_mac, _phy);
ret = esp_eth_driver_install(ð_config, &_eth_handle);
if (ret != ESP_OK) {
log_e("Ethernet driver install failed: %d", ret);
return false;
}
if (_eth_handle == NULL) {
log_e("esp_eth_driver_install failed! eth_handle is NULL");
return false;
}
esp_netif_config_t cfg = ESP_NETIF_DEFAULT_ETH();
// Use ESP_NETIF_INHERENT_DEFAULT_ETH when multiple Ethernet interfaces are used and so you need to modify
// esp-netif configuration parameters for each interface (name, priority, etc.).
char if_key_str[10];
char if_desc_str[10];
char num_str[3];
itoa(_eth_index, num_str, 10);
if (_eth_index == 0) {
strcpy(if_key_str, "ETH_DEF");
} else {
strcat(strcpy(if_key_str, "ETH_"), num_str);
}
strcat(strcpy(if_desc_str, "eth"), num_str);
esp_netif_inherent_config_t esp_netif_config = ESP_NETIF_INHERENT_DEFAULT_ETH();
esp_netif_config.if_key = if_key_str;
esp_netif_config.if_desc = if_desc_str;
esp_netif_config.route_prio -= _eth_index * 5;
cfg.base = &esp_netif_config;
_esp_netif = esp_netif_new(&cfg);
if (_esp_netif == NULL) {
log_e("esp_netif_new failed");
return false;
}
_glue_handle = esp_eth_new_netif_glue(_eth_handle);
if (_glue_handle == NULL) {
log_e("esp_eth_new_netif_glue failed");
return false;
}
/* attach Ethernet driver to TCP/IP stack */
ret = esp_netif_attach(_esp_netif, _glue_handle);
if (ret != ESP_OK) {
log_e("esp_netif_attach failed: %d", ret);
return false;
}
// auto negotiation needs to be disabled to change duplex mode and link speed
if (!_auto_negotiation) {
if (!_setAutoNegotiation(_auto_negotiation)) {
return false;
}
if (!_setFullDuplex(_full_duplex)) {
return false;
}
if (!_setLinkSpeed(_link_speed)) {
return false;
}
}
if (_eth_ev_instance == NULL && esp_event_handler_instance_register(ETH_EVENT, ESP_EVENT_ANY_ID, &_eth_event_cb, NULL, &_eth_ev_instance)) {
log_e("event_handler_instance_register for ETH_EVENT Failed!");
return false;
}
/* attach to receive events */
initNetif((Network_Interface_ID)(ESP_NETIF_ID_ETH + _eth_index));
Network.onSysEvent(onEthConnected, ARDUINO_EVENT_ETH_CONNECTED);
ret = esp_eth_start(_eth_handle);
if (ret != ESP_OK) {
log_e("esp_eth_start failed: %d", ret);
return false;
}
_eth_started = true;
if (!perimanSetPinBus(_pin_rmii_clock, ESP32_BUS_TYPE_ETHERNET_CLK, (void *)(this), -1, -1)) {
goto err;
}
if (!perimanSetPinBus(_pin_mcd, ESP32_BUS_TYPE_ETHERNET_MCD, (void *)(this), -1, -1)) {
goto err;
}
if (!perimanSetPinBus(_pin_mdio, ESP32_BUS_TYPE_ETHERNET_MDIO, (void *)(this), -1, -1)) {
goto err;
}
if (!perimanSetPinBus(ETH_RMII_TX_EN, ESP32_BUS_TYPE_ETHERNET_RMII, (void *)(this), -1, -1)) {
goto err;
}
if (!perimanSetPinBus(ETH_RMII_TX0, ESP32_BUS_TYPE_ETHERNET_RMII, (void *)(this), -1, -1)) {
goto err;
}
if (!perimanSetPinBus(ETH_RMII_TX1, ESP32_BUS_TYPE_ETHERNET_RMII, (void *)(this), -1, -1)) {
goto err;
}
if (!perimanSetPinBus(ETH_RMII_RX0, ESP32_BUS_TYPE_ETHERNET_RMII, (void *)(this), -1, -1)) {
goto err;
}
if (!perimanSetPinBus(ETH_RMII_RX1_EN, ESP32_BUS_TYPE_ETHERNET_RMII, (void *)(this), -1, -1)) {
goto err;
}
if (!perimanSetPinBus(ETH_RMII_CRS_DV, ESP32_BUS_TYPE_ETHERNET_RMII, (void *)(this), -1, -1)) {
goto err;
}
if (_pin_power != -1) {
if (!perimanSetPinBus(_pin_power, ESP32_BUS_TYPE_ETHERNET_PWR, (void *)(this), -1, -1)) {
goto err;
}
}
// holds a few milliseconds to let DHCP start and enter into a good state
// FIX ME -- addresses issue https://github.com/espressif/arduino-esp32/issues/5733
delay(50);
return true;
err:
log_e("Failed to set all pins bus to ETHERNET");
ETHClass::ethDetachBus((void *)(this));
return false;
}
#endif /* CONFIG_ETH_USE_ESP32_EMAC */
#if ETH_SPI_SUPPORTS_CUSTOM
__unused static void *_eth_spi_init(const void *ctx) {
return (void *)ctx;
}
__unused static esp_err_t _eth_spi_deinit(void *ctx) {
return ESP_OK;
}
esp_err_t ETHClass::_eth_spi_read(void *ctx, uint32_t cmd, uint32_t addr, void *data, uint32_t data_len) {
return ((ETHClass *)ctx)->eth_spi_read(cmd, addr, data, data_len);
}
esp_err_t ETHClass::_eth_spi_write(void *ctx, uint32_t cmd, uint32_t addr, const void *data, uint32_t data_len) {
return ((ETHClass *)ctx)->eth_spi_write(cmd, addr, data, data_len);
}
esp_err_t ETHClass::eth_spi_read(uint32_t cmd, uint32_t addr, void *data, uint32_t data_len) {
if (_spi == NULL) {
return ESP_FAIL;
}
// log_i(" 0x%04lx 0x%04lx %lu", cmd, addr, data_len);
_spi->beginTransaction(SPISettings(_spi_freq_mhz * 1000 * 1000, MSBFIRST, SPI_MODE0));
digitalWrite(_pin_cs, LOW);
#if CONFIG_ETH_SPI_ETHERNET_DM9051
if (_phy_type == ETH_PHY_DM9051) {
_spi->write(((cmd & 0x01) << 7) | (addr & 0x7F));
} else
#endif
#if CONFIG_ETH_SPI_ETHERNET_W5500
if (_phy_type == ETH_PHY_W5500) {
_spi->write16(cmd);
_spi->write(addr);
} else
#endif
#if CONFIG_ETH_SPI_ETHERNET_KSZ8851SNL
if (_phy_type == ETH_PHY_KSZ8851) {
if (cmd > 1) {
_spi->write(cmd << 6 | addr);
} else {
_spi->write16(cmd << 14 | addr);
}
} else
#endif
{
log_e("Unsupported PHY module: %d", _phy_type);
digitalWrite(_pin_cs, HIGH);
_spi->endTransaction();
return ESP_FAIL;
}
_spi->transferBytes(NULL, (uint8_t *)data, data_len);
digitalWrite(_pin_cs, HIGH);
_spi->endTransaction();
return ESP_OK;
}
esp_err_t ETHClass::eth_spi_write(uint32_t cmd, uint32_t addr, const void *data, uint32_t data_len) {
if (_spi == NULL) {
return ESP_FAIL;
}
// log_i("0x%04lx 0x%04lx %lu", cmd, addr, data_len);
_spi->beginTransaction(SPISettings(_spi_freq_mhz * 1000 * 1000, MSBFIRST, SPI_MODE0));
digitalWrite(_pin_cs, LOW);
#if CONFIG_ETH_SPI_ETHERNET_DM9051
if (_phy_type == ETH_PHY_DM9051) {
_spi->write(((cmd & 0x01) << 7) | (addr & 0x7F));
} else
#endif
#if CONFIG_ETH_SPI_ETHERNET_W5500
if (_phy_type == ETH_PHY_W5500) {
_spi->write16(cmd);
_spi->write(addr);
} else
#endif
#if CONFIG_ETH_SPI_ETHERNET_KSZ8851SNL
if (_phy_type == ETH_PHY_KSZ8851) {
if (cmd > 1) {
_spi->write(cmd << 6 | addr);
} else {
_spi->write16(cmd << 14 | addr);
}
} else
#endif
{
log_e("Unsupported PHY module: %d", _phy_type);
digitalWrite(_pin_cs, HIGH);
_spi->endTransaction();
return ESP_FAIL;
}
_spi->writeBytes((const uint8_t *)data, data_len);
digitalWrite(_pin_cs, HIGH);
_spi->endTransaction();
return ESP_OK;
}
#endif
bool ETHClass::beginSPI(
eth_phy_type_t type, int32_t phy_addr, uint8_t *mac_addr_p, int cs, int irq, int rst,
#if ETH_SPI_SUPPORTS_CUSTOM
SPIClass *spi,
#endif
int sck, int miso, int mosi, spi_host_device_t spi_host, uint8_t spi_freq_mhz
) {
esp_err_t ret = ESP_OK;
if (_esp_netif != NULL || _eth_handle != NULL) {
log_w("ETH Already Started");
return true;
}
#if ETH_SPI_SUPPORTS_NO_IRQ
if (cs < 0) {
log_e("CS pin must be defined!");
#else
if (cs < 0 || irq < 0) {
log_e("CS and IRQ pins must be defined!");
#endif
return false;
}
if (phy_addr < ETH_PHY_ADDR_AUTO) {
log_e("Invalid PHY address: %d, set to ETH_PHY_ADDR_AUTO for auto detection", phy_addr);
return false;
}
perimanSetBusDeinit(ESP32_BUS_TYPE_ETHERNET_SPI, ETHClass::ethDetachBus);
if (_pin_cs != -1) {
if (!perimanClearPinBus(_pin_cs)) {
return false;
}
}
if (_pin_rst != -1) {
if (!perimanClearPinBus(_pin_rst)) {
return false;
}
}
if (_pin_irq != -1) {
if (!perimanClearPinBus(_pin_irq)) {
return false;
}
}
if (_pin_sck != -1) {
if (!perimanClearPinBus(_pin_sck)) {
return false;
}
}
if (_pin_miso != -1) {
if (!perimanClearPinBus(_pin_miso)) {
return false;
}
}
if (_pin_mosi != -1) {
if (!perimanClearPinBus(_pin_mosi)) {
return false;
}
}
#if ETH_SPI_SUPPORTS_CUSTOM
_spi = spi;
#endif
if (spi_freq_mhz) {
_spi_freq_mhz = spi_freq_mhz;
}
_phy_type = type;
_pin_cs = digitalPinToGPIONumber(cs);
_pin_irq = digitalPinToGPIONumber(irq);
_pin_rst = digitalPinToGPIONumber(rst);
_pin_sck = digitalPinToGPIONumber(sck);
_pin_miso = digitalPinToGPIONumber(miso);
_pin_mosi = digitalPinToGPIONumber(mosi);
#if ETH_SPI_SUPPORTS_CUSTOM
if (_spi != NULL) {
pinMode(_pin_cs, OUTPUT);
digitalWrite(_pin_cs, HIGH);
char cs_num_str[3];
itoa(_eth_index, cs_num_str, 10);
strcat(strcpy(_cs_str, "ETH_CS["), cs_num_str);
strcat(_cs_str, "]");
perimanSetPinBusExtraType(_pin_cs, _cs_str);
}
#endif
// Init SPI bus
if (_pin_sck >= 0 && _pin_miso >= 0 && _pin_mosi >= 0) {
spi_bus_config_t buscfg;
memset(&buscfg, 0, sizeof(spi_bus_config_t));
buscfg.mosi_io_num = _pin_mosi;
buscfg.miso_io_num = _pin_miso;
buscfg.sclk_io_num = _pin_sck;
buscfg.quadwp_io_num = -1;
buscfg.quadhd_io_num = -1;
buscfg.data4_io_num = -1;
buscfg.data5_io_num = -1;
buscfg.data6_io_num = -1;
buscfg.data7_io_num = -1;
buscfg.max_transfer_sz = -1;
ret = spi_bus_initialize(spi_host, &buscfg, SPI_DMA_CH_AUTO);
if (ret != ESP_OK && ret != ESP_ERR_INVALID_STATE) {
log_e("SPI bus initialize failed: %d", ret);
return false;
}
}
Network.begin();
_ethernets[_eth_index] = this;
// Install GPIO ISR handler to be able to service SPI Eth modules interrupts
ret = gpio_install_isr_service(0);
if (ret != ESP_OK && ret != ESP_ERR_INVALID_STATE) {
log_e("GPIO ISR handler install failed: %d", ret);
return false;
}
// Init common MAC and PHY configs to default
__unused eth_mac_config_t eth_mac_config = ETH_MAC_DEFAULT_CONFIG();
__unused eth_phy_config_t phy_config = ETH_PHY_DEFAULT_CONFIG();
// Set RX Task Stack Size
eth_mac_config.rx_task_stack_size = _task_stack_size;
// Update PHY config based on board specific configuration
phy_config.phy_addr = phy_addr;
phy_config.reset_gpio_num = _pin_rst;
// Configure SPI interface for specific SPI module
spi_device_interface_config_t spi_devcfg;
memset(&spi_devcfg, 0, sizeof(spi_device_interface_config_t));
spi_devcfg.mode = 0;
spi_devcfg.clock_speed_hz = _spi_freq_mhz * 1000 * 1000;
spi_devcfg.input_delay_ns = 20;
spi_devcfg.spics_io_num = _pin_cs;
spi_devcfg.queue_size = 20;
#if CONFIG_ETH_SPI_ETHERNET_W5500
if (type == ETH_PHY_W5500) {
eth_w5500_config_t mac_config = ETH_W5500_DEFAULT_CONFIG(spi_host, &spi_devcfg);
mac_config.int_gpio_num = _pin_irq;
#if ETH_SPI_SUPPORTS_NO_IRQ
if (_pin_irq < 0) {
mac_config.poll_period_ms = 10;
}
#endif
#if ETH_SPI_SUPPORTS_CUSTOM
if (_spi != NULL) {
mac_config.custom_spi_driver.config = this;
mac_config.custom_spi_driver.init = _eth_spi_init;
mac_config.custom_spi_driver.deinit = _eth_spi_deinit;
mac_config.custom_spi_driver.read = _eth_spi_read;
mac_config.custom_spi_driver.write = _eth_spi_write;
}
#endif
_mac = esp_eth_mac_new_w5500(&mac_config, ð_mac_config);
_phy = esp_eth_phy_new_w5500(&phy_config);
} else
#endif
#if CONFIG_ETH_SPI_ETHERNET_DM9051
if (type == ETH_PHY_DM9051) {
eth_dm9051_config_t mac_config = ETH_DM9051_DEFAULT_CONFIG(spi_host, &spi_devcfg);
mac_config.int_gpio_num = _pin_irq;
#if ETH_SPI_SUPPORTS_CUSTOM
if (_spi != NULL) {
mac_config.custom_spi_driver.config = this;
mac_config.custom_spi_driver.init = _eth_spi_init;
mac_config.custom_spi_driver.deinit = _eth_spi_deinit;
mac_config.custom_spi_driver.read = _eth_spi_read;
mac_config.custom_spi_driver.write = _eth_spi_write;
}
#endif
_mac = esp_eth_mac_new_dm9051(&mac_config, ð_mac_config);
_phy = esp_eth_phy_new_dm9051(&phy_config);
} else
#endif
#if CONFIG_ETH_SPI_ETHERNET_KSZ8851SNL
if (type == ETH_PHY_KSZ8851) {
eth_ksz8851snl_config_t mac_config = ETH_KSZ8851SNL_DEFAULT_CONFIG(spi_host, &spi_devcfg);
mac_config.int_gpio_num = _pin_irq;
#if ETH_SPI_SUPPORTS_CUSTOM
if (_spi != NULL) {
mac_config.custom_spi_driver.config = this;
mac_config.custom_spi_driver.init = _eth_spi_init;
mac_config.custom_spi_driver.deinit = _eth_spi_deinit;
mac_config.custom_spi_driver.read = _eth_spi_read;
mac_config.custom_spi_driver.write = _eth_spi_write;
}
#endif
_mac = esp_eth_mac_new_ksz8851snl(&mac_config, ð_mac_config);
_phy = esp_eth_phy_new_ksz8851snl(&phy_config);
} else
#endif
{
log_e("Unsupported PHY module: %d", (int)type);
return false;
}
// Init Ethernet driver to default and install it
esp_eth_config_t eth_config = ETH_DEFAULT_CONFIG(_mac, _phy);
ret = esp_eth_driver_install(ð_config, &_eth_handle);
if (ret != ESP_OK) {
log_e("SPI Ethernet driver install failed: %d", ret);
return false;
}
if (_eth_handle == NULL) {
log_e("esp_eth_driver_install failed! eth_handle is NULL");
return false;
}
uint8_t mac_addr[ETH_ADDR_LEN];
if (mac_addr_p != nullptr) {
memcpy(mac_addr, mac_addr_p, ETH_ADDR_LEN);
} else {
// Derive a new MAC address for this interface
uint8_t base_mac_addr[ETH_ADDR_LEN];
ret = esp_efuse_mac_get_default(base_mac_addr);
if (ret != ESP_OK) {
log_e("Get EFUSE MAC failed: %d", ret);
return false;
}
base_mac_addr[ETH_ADDR_LEN - 1] += _eth_index; //Increment by the ETH number
esp_derive_local_mac(mac_addr, base_mac_addr);
}
ret = esp_eth_ioctl(_eth_handle, ETH_CMD_S_MAC_ADDR, mac_addr);
if (ret != ESP_OK) {
log_e("SPI Ethernet MAC address config failed: %d", ret);
return false;
}
// Use ESP_NETIF_DEFAULT_ETH when just one Ethernet interface is used and you don't need to modify
// default esp-netif configuration parameters.
esp_netif_config_t cfg = ESP_NETIF_DEFAULT_ETH();
// Use ESP_NETIF_INHERENT_DEFAULT_ETH when multiple Ethernet interfaces are used and so you need to modify
// esp-netif configuration parameters for each interface (name, priority, etc.).
char if_key_str[10];
char if_desc_str[10];
char num_str[3];
itoa(_eth_index, num_str, 10);
if (_eth_index == 0) {
strcpy(if_key_str, "ETH_DEF");
} else {
strcat(strcpy(if_key_str, "ETH_"), num_str);
}
strcat(strcpy(if_desc_str, "eth"), num_str);
esp_netif_inherent_config_t esp_netif_config = ESP_NETIF_INHERENT_DEFAULT_ETH();
esp_netif_config.if_key = if_key_str;
esp_netif_config.if_desc = if_desc_str;
esp_netif_config.route_prio -= _eth_index * 5;
cfg.base = &esp_netif_config;
_esp_netif = esp_netif_new(&cfg);
if (_esp_netif == NULL) {
log_e("esp_netif_new failed");
return false;
}
// Attach Ethernet driver to TCP/IP stack
_glue_handle = esp_eth_new_netif_glue(_eth_handle);
if (_glue_handle == NULL) {
log_e("esp_eth_new_netif_glue failed");
return false;
}
ret = esp_netif_attach(_esp_netif, _glue_handle);
if (ret != ESP_OK) {
log_e("esp_netif_attach failed: %d", ret);
return false;
}
// auto negotiation needs to be disabled to change duplex mode and link speed
if (!_auto_negotiation) {
if (!_setAutoNegotiation(_auto_negotiation)) {
return false;
}
if (!_setFullDuplex(_full_duplex)) {
return false;
}
if (!_setLinkSpeed(_link_speed)) {
return false;
}
}
if (_eth_ev_instance == NULL && esp_event_handler_instance_register(ETH_EVENT, ESP_EVENT_ANY_ID, &_eth_event_cb, NULL, &_eth_ev_instance)) {
log_e("event_handler_instance_register for ETH_EVENT Failed!");
return false;
}
/* attach to receive events */
initNetif((Network_Interface_ID)(ESP_NETIF_ID_ETH + _eth_index));
// Start Ethernet driver state machine
ret = esp_eth_start(_eth_handle);
if (ret != ESP_OK) {
log_e("esp_eth_start failed: %d", ret);
return false;
}
_eth_started = true;
// If Arduino's SPI is used, cs pin is in GPIO mode
#if ETH_SPI_SUPPORTS_CUSTOM
if (_spi == NULL) {
#endif
if (!perimanSetPinBus(_pin_cs, ESP32_BUS_TYPE_ETHERNET_SPI, (void *)(this), _eth_index, -1)) {
goto err;
}
perimanSetPinBusExtraType(_pin_cs, "ETH_SPI_CS");
#if ETH_SPI_SUPPORTS_CUSTOM
}
#endif
#if ETH_SPI_SUPPORTS_NO_IRQ
if (_pin_irq != -1) {
#endif
if (!perimanSetPinBus(_pin_irq, ESP32_BUS_TYPE_ETHERNET_SPI, (void *)(this), _eth_index, -1)) {
goto err;
}
perimanSetPinBusExtraType(_pin_irq, "ETH_IRQ");
#if ETH_SPI_SUPPORTS_NO_IRQ
}
#endif
if (_pin_sck != -1) {
if (!perimanSetPinBus(_pin_sck, ESP32_BUS_TYPE_ETHERNET_SPI, (void *)(this), _eth_index, -1)) {
goto err;
}
perimanSetPinBusExtraType(_pin_sck, "ETH_SPI_SCK");
}
if (_pin_miso != -1) {
if (!perimanSetPinBus(_pin_miso, ESP32_BUS_TYPE_ETHERNET_SPI, (void *)(this), _eth_index, -1)) {
goto err;
}
perimanSetPinBusExtraType(_pin_miso, "ETH_SPI_MISO");
}
if (_pin_mosi != -1) {
if (!perimanSetPinBus(_pin_mosi, ESP32_BUS_TYPE_ETHERNET_SPI, (void *)(this), _eth_index, -1)) {
goto err;
}
perimanSetPinBusExtraType(_pin_mosi, "ETH_SPI_MOSI");
}
if (_pin_rst != -1) {
if (!perimanSetPinBus(_pin_rst, ESP32_BUS_TYPE_ETHERNET_SPI, (void *)(this), _eth_index, -1)) {
goto err;
}
perimanSetPinBusExtraType(_pin_rst, "ETH_RST");
}
Network.onSysEvent(onEthConnected, ARDUINO_EVENT_ETH_CONNECTED);
return true;
err:
log_e("Failed to set all pins bus to ETHERNET");
ETHClass::ethDetachBus((void *)(this));
return false;
}
#if ETH_SPI_SUPPORTS_CUSTOM
bool ETHClass::begin(eth_phy_type_t type, int32_t phy_addr, int cs, int irq, int rst, SPIClass &spi, uint8_t spi_freq_mhz) {
return beginSPI(type, phy_addr, nullptr, cs, irq, rst, &spi, -1, -1, -1, SPI2_HOST, spi_freq_mhz);
}
#endif
bool ETHClass::begin(
eth_phy_type_t type, int32_t phy_addr, int cs, int irq, int rst, spi_host_device_t spi_host, int sck, int miso, int mosi, uint8_t spi_freq_mhz
) {
return beginSPI(
type, phy_addr, nullptr, cs, irq, rst,
#if ETH_SPI_SUPPORTS_CUSTOM
NULL,
#endif
sck, miso, mosi, spi_host, spi_freq_mhz
);
}
static bool empty_ethDetachBus(void *bus_pointer) {
return true;
}
void ETHClass::end(void) {
Network.removeEvent(onEthConnected, ARDUINO_EVENT_ETH_CONNECTED);
if (_eth_handle != NULL) {
if (esp_eth_stop(_eth_handle) != ESP_OK) {
log_e("Failed to stop Ethernet");
return;
}
//wait for stop
while (getStatusBits() & ESP_NETIF_STARTED_BIT) {
delay(10);
}
_eth_started = false;
//delete glue first
if (_glue_handle != NULL) {
if (esp_eth_del_netif_glue(_glue_handle) != ESP_OK) {
log_e("Failed to del_netif_glue Ethernet");
return;
}
_glue_handle = NULL;
}
//uninstall driver
if (esp_eth_driver_uninstall(_eth_handle) != ESP_OK) {
log_e("Failed to uninstall Ethernet");
return;
}
_eth_handle = NULL;
//delete mac
if (_mac != NULL) {
_mac->del(_mac);
_mac = NULL;
}
//delete phy
if (_phy != NULL) {
_phy->del(_phy);
_phy = NULL;
}
}
if (_eth_ev_instance != NULL) {
bool do_not_unreg_ev_handler = false;
for (int i = 0; i < NUM_SUPPORTED_ETH_PORTS; ++i) {
if (_ethernets[i] != NULL && _ethernets[i]->netif() != NULL && _ethernets[i]->netif() != _esp_netif) {
do_not_unreg_ev_handler = true;
break;
}
}
if (!do_not_unreg_ev_handler) {
if (esp_event_handler_unregister(ETH_EVENT, ESP_EVENT_ANY_ID, &_eth_event_cb) == ESP_OK) {
_eth_ev_instance = NULL;
log_v("Unregistered event handler");
} else {
log_e("Failed to unregister event handler");
}
}
}
destroyNetif();
#if ETH_SPI_SUPPORTS_CUSTOM
_spi = NULL;
#endif
#if (CONFIG_ETH_USE_ESP32_EMAC && !defined(CONFIG_IDF_TARGET_ESP32P4))
perimanSetBusDeinit(ESP32_BUS_TYPE_ETHERNET_RMII, empty_ethDetachBus);
perimanSetBusDeinit(ESP32_BUS_TYPE_ETHERNET_CLK, empty_ethDetachBus);
perimanSetBusDeinit(ESP32_BUS_TYPE_ETHERNET_MCD, empty_ethDetachBus);
perimanSetBusDeinit(ESP32_BUS_TYPE_ETHERNET_MDIO, empty_ethDetachBus);
perimanSetBusDeinit(ESP32_BUS_TYPE_ETHERNET_PWR, empty_ethDetachBus);
if (_pin_rmii_clock != -1 && _pin_mcd != -1 && _pin_mdio != -1) {
perimanClearPinBus(_pin_rmii_clock);
perimanClearPinBus(_pin_mcd);
perimanClearPinBus(_pin_mdio);
perimanClearPinBus(ETH_RMII_TX_EN);
perimanClearPinBus(ETH_RMII_TX0);
perimanClearPinBus(ETH_RMII_TX1);
perimanClearPinBus(ETH_RMII_RX0);
perimanClearPinBus(ETH_RMII_RX1_EN);
perimanClearPinBus(ETH_RMII_CRS_DV);
_pin_rmii_clock = -1;