Add support for lan867x Microchip 10BASE-T1S Single Pair Ethernet PHY via espressif

esp-eth-drivers component for IDF>=5.3.0

Signed-off-by: Viacheslav Bocharov <adeep@lexina.in>

esphome/components/ethernet/__init__.py

@@ -1,7 +1,12 @@
 import logging
+
 from esphome import pins
 import esphome.codegen as cg
-from esphome.components.esp32 import add_idf_sdkconfig_option, get_esp32_variant
+from esphome.components.esp32 import (
+    add_idf_component,
+    add_idf_sdkconfig_option,
+    get_esp32_variant,
+)
 from esphome.components.esp32.const import (
     VARIANT_ESP32C3,
     VARIANT_ESP32S2,
@@ -65,6 +70,7 @@ ETHERNET_TYPES = {
     "KSZ8081RNA": EthernetType.ETHERNET_TYPE_KSZ8081RNA,
     "W5500": EthernetType.ETHERNET_TYPE_W5500,
     "OPENETH": EthernetType.ETHERNET_TYPE_OPENETH,
+    "LAN867X": EthernetType.ETHERNET_TYPE_LAN867X,
 }
 
 SPI_ETHERNET_TYPES = ["W5500"]
@@ -131,6 +137,9 @@ def _validate(config):
         else:
             use_address = CORE.name + config[CONF_DOMAIN]
         config[CONF_USE_ADDRESS] = use_address
+    if config.get(CONF_TYPE) == "LAN867X":
+        validator = cv.require_framework_version(esp_idf=cv.Version(5, 3, 0))
+        validator(config)
     if config[CONF_TYPE] in SPI_ETHERNET_TYPES:
         if _is_framework_spi_polling_mode_supported():
             if CONF_POLLING_INTERVAL in config and CONF_INTERRUPT_PIN in config:
@@ -175,6 +184,7 @@ PHY_REGISTER_SCHEMA = cv.Schema(
         cv.Optional(CONF_PAGE_ID): cv.hex_int,
     }
 )
+
 RMII_SCHEMA = BASE_SCHEMA.extend(
     cv.Schema(
         {
@@ -221,6 +231,7 @@ CONFIG_SCHEMA = cv.All(
             "JL1101": RMII_SCHEMA,
             "KSZ8081": RMII_SCHEMA,
             "KSZ8081RNA": RMII_SCHEMA,
+            "LAN867X": RMII_SCHEMA,
             "W5500": SPI_SCHEMA,
             "OPENETH": BASE_SCHEMA,
         },
@@ -277,6 +288,17 @@ async def to_code(config):
     var = cg.new_Pvariable(config[CONF_ID])
     await cg.register_component(var, config)
 
+    if config[CONF_TYPE] == "LAN867X":
+        add_idf_component(
+            name="esp-eth-drivers",
+            repo="https://github.com/espressif/esp-eth-drivers.git",
+            ref="master",
+            path="lan867x",
+        )
+        add_idf_sdkconfig_option("CONFIG_GPIO_CTRL_FUNC_IN_IRAM", True)
+        add_idf_sdkconfig_option("CONFIG_ETHERNET_INTERNAL_SUPPORT", True)
+        add_idf_sdkconfig_option("CONFIG_ETHERNET_PHY_LAN867X", True)
+
     if config[CONF_TYPE] == "W5500":
         cg.add(var.set_clk_pin(config[CONF_CLK_PIN]))
         cg.add(var.set_miso_pin(config[CONF_MISO_PIN]))

esphome/components/ethernet/ethernet_component.cpp

@@ -191,6 +191,12 @@ void EthernetComponent::setup() {
       this->phy_ = esp_eth_phy_new_w5500(&phy_config);
       break;
     }
+#endif
+#if ESP_IDF_VERSION_MAJOR >= 5 && ESP_IDF_VERSION_MINOR >= 3
+    case ETHERNET_TYPE_LAN867X: {
+      this->phy_ = esp_eth_phy_new_lan867x(&phy_config);
+      break;
+    }
 #endif
     default: {
       this->mark_failed();
@@ -318,6 +324,10 @@ void EthernetComponent::dump_config() {
       eth_type = "OPENETH";
       break;
 
+    case ETHERNET_TYPE_LAN867X:
+      eth_type = "LAN867X";
+      break;
+
     default:
       eth_type = "Unknown";
       break;

esphome/components/ethernet/ethernet_component.h

@@ -12,6 +12,10 @@
 #include "esp_netif.h"
 #include "esp_mac.h"
 
+#if ESP_IDF_VERSION_MAJOR >= 5 && ESP_IDF_VERSION_MINOR >= 3
+#include "esp_eth_phy_lan867x.h"
+#endif
+
 namespace esphome {
 namespace ethernet {
 
@@ -26,6 +30,7 @@ enum EthernetType {
   ETHERNET_TYPE_KSZ8081RNA,
   ETHERNET_TYPE_W5500,
   ETHERNET_TYPE_OPENETH,
+  ETHERNET_TYPE_LAN867X,
 };
 
 struct ManualIP {