PHY address setter

Author: JAndrassy

README.md

@@ -49,7 +49,7 @@ W5500Driver driver(4, 26, 27); // CS pin is 4, INT pin is 26, reset pin is 27
 W5500Driver driver(SS, -1, 27); // CS pin is default, INT is not used and reset pin is 27
 ```
 
-To use other SPIClass instance set it on driver with `setSPI`. To change the SPI frequency use `setSpiFreq`. Default frequency is 20 MHz.
+To use other SPIClass instance set it on driver with `setSPI`. To change the SPI frequency use `setSpiFreq`. Default frequency is 20 MHz. Sometimes automatic PHY address detection doesn't work, then use `setPhyAddr` to set the right PHY address. 
 
 Example with all options specified (using HSPI as SPI1 on FSPI pins):
 
@@ -64,6 +64,7 @@ void setup() {
 
   driver.setSPI(SPI1);
   driver.setSpiFreq(10);
+  driver.setPhyAddress(0);
 
   Ethernet.init(driver);
 
@@ -113,6 +114,8 @@ The EMACDriver has optional parameters:
 
 The values for clockPin and clockMode are [enums from ESP-IDF](https://docs.espressif.com/projects/esp-idf/en/stable/esp32/api-reference/network/esp_eth.html?highlight=rmii#id14).
 
+Sometimes automatic PHY address detection doesn't work, then use `setPhyAddr` to set the right PHY address. 
+
 ## The Ethernet object
 
 ### MAC address

src/utility/DM9051Driver.cpp

@@ -41,7 +41,7 @@ esp_eth_mac_t* DM9051Driver::newMAC() {
 
 esp_eth_phy_t* DM9051Driver::newPHY() {
   eth_phy_config_t phy_config = ETH_PHY_DEFAULT_CONFIG();
-  phy_config.phy_addr = ESP_ETH_PHY_ADDR_AUTO;
+  phy_config.phy_addr = phyAddr;
   phy_config.reset_gpio_num = digitalPinToGPIONumber(pinRst);
 
   return esp_eth_phy_new_dm9051(&phy_config);

src/utility/EMACDriver.cpp

@@ -48,6 +48,7 @@ esp_eth_mac_t* EMACDriver::newMAC() {
 
 esp_eth_phy_t* EMACDriver::newPHY() {
   eth_phy_config_t phy_config = ETH_PHY_DEFAULT_CONFIG();
+  phy_config.phy_addr = phyAddr;
   phy_config.reset_gpio_num = digitalPinToGPIONumber(powerPin);
 
   switch (type) {

src/utility/ENC28J60Driver.cpp

@@ -41,7 +41,7 @@ esp_eth_mac_t* ENC28J60Driver::newMAC() {
 
 esp_eth_phy_t* ENC28J60Driver::newPHY() {
   eth_phy_config_t phy_config = ETH_PHY_DEFAULT_CONFIG();
-  phy_config.phy_addr = ESP_ETH_PHY_ADDR_AUTO;
+  phy_config.phy_addr = phyAddr;
   phy_config.reset_gpio_num = digitalPinToGPIONumber(pinRst);
 
   return esp_eth_phy_new_enc28j60(&phy_config);

src/utility/EthDriver.cpp

@@ -39,6 +39,10 @@ void EthDriver::end() {
   }
 }
 
+void EthDriver::setPhyAddress(int32_t addr) {
+  phyAddr = addr;
+}
+
 EthDriver::~EthDriver() {
   end();
 };

src/utility/EthDriver.h

@@ -37,6 +37,8 @@ class EthDriver {
   void begin();
   void end();
 
+  void setPhyAddress(int32_t addr);
+
   virtual bool usesIRQ() = 0;
 
 protected:
@@ -45,6 +47,8 @@ class EthDriver {
 
   friend class EthernetClass;
 
+  int32_t phyAddr = ESP_ETH_PHY_ADDR_AUTO;
+
   esp_eth_mac_t* mac = NULL;
   esp_eth_phy_t* phy = NULL;
 };

src/utility/KSZ8851SNLDriver.cpp

@@ -41,7 +41,7 @@ esp_eth_mac_t* KSZ8851SNLDriver::newMAC() {
 
 esp_eth_phy_t* KSZ8851SNLDriver::newPHY() {
   eth_phy_config_t phy_config = ETH_PHY_DEFAULT_CONFIG();
-  phy_config.phy_addr = ESP_ETH_PHY_ADDR_AUTO;
+  phy_config.phy_addr = phyAddr;
   phy_config.reset_gpio_num = digitalPinToGPIONumber(pinRst);
 
   return esp_eth_phy_new_w5500(&phy_config);

src/utility/W5500Driver.cpp

@@ -41,7 +41,7 @@ esp_eth_mac_t* W5500Driver::newMAC() {
 
 esp_eth_phy_t* W5500Driver::newPHY() {
   eth_phy_config_t phy_config = ETH_PHY_DEFAULT_CONFIG();
-  phy_config.phy_addr = ESP_ETH_PHY_ADDR_AUTO;
+  phy_config.phy_addr = phyAddr;
   phy_config.reset_gpio_num = digitalPinToGPIONumber(pinRst);
 
   return esp_eth_phy_new_w5500(&phy_config);