From 0547f2a9316fd80712515993304a1b5049f56ea7 Mon Sep 17 00:00:00 2001
From: Fabian <Fabian-Schmidt@users.noreply.github.com>
Date: Wed, 12 Apr 2023 23:22:08 +0200
Subject: [PATCH] Add KSZ8081 support. (#4668)

Co-authored-by: Your Name <you@example.com>
---
 esphome/components/ethernet/__init__.py         |  1 +
 .../components/ethernet/ethernet_component.cpp  | 17 +++++++++++++++--
 .../components/ethernet/ethernet_component.h    |  6 ++++--
 3 files changed, 20 insertions(+), 4 deletions(-)

diff --git a/esphome/components/ethernet/__init__.py b/esphome/components/ethernet/__init__.py
index f6ca376681..bedc0a4c30 100644
--- a/esphome/components/ethernet/__init__.py
+++ b/esphome/components/ethernet/__init__.py
@@ -34,6 +34,7 @@ ETHERNET_TYPES = {
     "DP83848": EthernetType.ETHERNET_TYPE_DP83848,
     "IP101": EthernetType.ETHERNET_TYPE_IP101,
     "JL1101": EthernetType.ETHERNET_TYPE_JL1101,
+    "KSZ8081": EthernetType.ETHERNET_TYPE_KSZ8081,
 }
 
 emac_rmii_clock_mode_t = cg.global_ns.enum("emac_rmii_clock_mode_t")
diff --git a/esphome/components/ethernet/ethernet_component.cpp b/esphome/components/ethernet/ethernet_component.cpp
index 4792728a71..8eb4718f49 100644
--- a/esphome/components/ethernet/ethernet_component.cpp
+++ b/esphome/components/ethernet/ethernet_component.cpp
@@ -74,6 +74,10 @@ void EthernetComponent::setup() {
       phy = esp_eth_phy_new_jl1101(&phy_config);
       break;
     }
+    case ETHERNET_TYPE_KSZ8081: {
+      phy = esp_eth_phy_new_ksz8081(&phy_config);
+      break;
+    }
     default: {
       this->mark_failed();
       return;
@@ -140,7 +144,7 @@ void EthernetComponent::loop() {
 }
 
 void EthernetComponent::dump_config() {
-  std::string eth_type;
+  const char *eth_type;
   switch (this->type_) {
     case ETHERNET_TYPE_LAN8720:
       eth_type = "LAN8720";
@@ -158,6 +162,14 @@ void EthernetComponent::dump_config() {
       eth_type = "IP101";
       break;
 
+    case ETHERNET_TYPE_JL1101:
+      eth_type = "JL1101";
+      break;
+
+    case ETHERNET_TYPE_KSZ8081:
+      eth_type = "KSZ8081";
+      break;
+
     default:
       eth_type = "Unknown";
       break;
@@ -170,7 +182,8 @@ void EthernetComponent::dump_config() {
   }
   ESP_LOGCONFIG(TAG, "  MDC Pin: %u", this->mdc_pin_);
   ESP_LOGCONFIG(TAG, "  MDIO Pin: %u", this->mdio_pin_);
-  ESP_LOGCONFIG(TAG, "  Type: %s", eth_type.c_str());
+  ESP_LOGCONFIG(TAG, "  Type: %s", eth_type);
+  ESP_LOGCONFIG(TAG, "  PHY addr: %u", this->phy_addr_);
 }
 
 float EthernetComponent::get_setup_priority() const { return setup_priority::WIFI; }
diff --git a/esphome/components/ethernet/ethernet_component.h b/esphome/components/ethernet/ethernet_component.h
index 872ed17044..0d9ebf29a8 100644
--- a/esphome/components/ethernet/ethernet_component.h
+++ b/esphome/components/ethernet/ethernet_component.h
@@ -14,11 +14,13 @@ namespace esphome {
 namespace ethernet {
 
 enum EthernetType {
-  ETHERNET_TYPE_LAN8720 = 0,
+  ETHERNET_TYPE_UNKNOWN = 0,
+  ETHERNET_TYPE_LAN8720,
   ETHERNET_TYPE_RTL8201,
   ETHERNET_TYPE_DP83848,
   ETHERNET_TYPE_IP101,
   ETHERNET_TYPE_JL1101,
+  ETHERNET_TYPE_KSZ8081,
 };
 
 struct ManualIP {
@@ -69,7 +71,7 @@ class EthernetComponent : public Component {
   int power_pin_{-1};
   uint8_t mdc_pin_{23};
   uint8_t mdio_pin_{18};
-  EthernetType type_{ETHERNET_TYPE_LAN8720};
+  EthernetType type_{ETHERNET_TYPE_UNKNOWN};
   emac_rmii_clock_mode_t clk_mode_{EMAC_CLK_EXT_IN};
   emac_rmii_clock_gpio_t clk_gpio_{EMAC_CLK_IN_GPIO};
   optional<ManualIP> manual_ip_{};