From 0fdb9e17640aaa5d96b83f9d97857db7f705d1dc Mon Sep 17 00:00:00 2001
From: zinkett <96108358+zinkett@users.noreply.github.com>
Date: Mon, 14 Jul 2025 14:41:11 +0200
Subject: [PATCH] feat(examples): improved example for Ethernet SPI polling
 mode without interrupt

Update example for polling mode, without interrupt pin
---
 .../protocol_examples_common/Kconfig.projbuild     | 10 +++++++++-
 .../protocol_examples_common/eth_connect.c         | 14 ++++++++++----
 2 files changed, 19 insertions(+), 5 deletions(-)

diff --git a/examples/common_components/protocol_examples_common/Kconfig.projbuild b/examples/common_components/protocol_examples_common/Kconfig.projbuild
index f9ccbfb569..98d541f34d 100644
--- a/examples/common_components/protocol_examples_common/Kconfig.projbuild
+++ b/examples/common_components/protocol_examples_common/Kconfig.projbuild
@@ -295,10 +295,18 @@ menu "Example Connection Configuration"
 
             config EXAMPLE_ETH_SPI_INT_GPIO
                 int "Interrupt GPIO number"
-                range ENV_GPIO_RANGE_MIN ENV_GPIO_IN_RANGE_MAX
+                range -1 ENV_GPIO_IN_RANGE_MAX
                 default 4
                 help
                     Set the GPIO number used by the SPI Ethernet module interrupt line.
+                    Set -1 to use SPI Ethernet module in polling mode.
+
+            config EXAMPLE_ETH_SPI_POLLING_MS_VAL
+                depends on EXAMPLE_ETH_SPI_INT_GPIO < 0
+                int "Polling period in msec of SPI Ethernet Module"
+                default 10
+                help
+                    Set SPI Ethernet module polling period.
         endif # EXAMPLE_USE_SPI_ETHERNET
 
         config EXAMPLE_ETH_PHY_RST_GPIO
diff --git a/examples/common_components/protocol_examples_common/eth_connect.c b/examples/common_components/protocol_examples_common/eth_connect.c
index ad48069021..a69a0bd217 100644
--- a/examples/common_components/protocol_examples_common/eth_connect.c
+++ b/examples/common_components/protocol_examples_common/eth_connect.c
@@ -1,5 +1,5 @@
 /*
- * SPDX-FileCopyrightText: 2022-2024 Espressif Systems (Shanghai) CO LTD
+ * SPDX-FileCopyrightText: 2022-2025 Espressif Systems (Shanghai) CO LTD
  *
  * SPDX-License-Identifier: Unlicense OR CC0-1.0
  */
@@ -115,7 +115,7 @@ static esp_netif_t *eth_start(void)
     s_phy = esp_eth_phy_new_dp83848(&phy_config);
 #elif CONFIG_EXAMPLE_ETH_PHY_KSZ80XX
     s_phy = esp_eth_phy_new_ksz80xx(&phy_config);
-#endif
+#endif // CONFIG_EXAMPLE_ETH_PHY_GENERIC
 #elif CONFIG_EXAMPLE_USE_SPI_ETHERNET
     gpio_install_isr_service(0);
     spi_bus_config_t buscfg = {
@@ -136,20 +136,26 @@ static esp_netif_t *eth_start(void)
     /* dm9051 ethernet driver is based on spi driver */
     eth_dm9051_config_t dm9051_config = ETH_DM9051_DEFAULT_CONFIG(CONFIG_EXAMPLE_ETH_SPI_HOST, &spi_devcfg);
     dm9051_config.int_gpio_num = CONFIG_EXAMPLE_ETH_SPI_INT_GPIO;
+#if CONFIG_EXAMPLE_ETH_SPI_INT_GPIO < 0
+    dm9051_config.poll_period_ms = CONFIG_EXAMPLE_ETH_SPI_POLLING_MS_VAL;
+#endif // CONFIG_EXAMPLE_ETH_SPI_INT_GPIO
     s_mac = esp_eth_mac_new_dm9051(&dm9051_config, &mac_config);
     s_phy = esp_eth_phy_new_dm9051(&phy_config);
 #elif CONFIG_EXAMPLE_USE_W5500
     /* w5500 ethernet driver is based on spi driver */
     eth_w5500_config_t w5500_config = ETH_W5500_DEFAULT_CONFIG(CONFIG_EXAMPLE_ETH_SPI_HOST, &spi_devcfg);
     w5500_config.int_gpio_num = CONFIG_EXAMPLE_ETH_SPI_INT_GPIO;
+#if CONFIG_EXAMPLE_ETH_SPI_INT_GPIO < 0
+    w5500_config.poll_period_ms = CONFIG_EXAMPLE_ETH_SPI_POLLING_MS_VAL;
+#endif // CONFIG_EXAMPLE_ETH_SPI_INT_GPIO
     s_mac = esp_eth_mac_new_w5500(&w5500_config, &mac_config);
     s_phy = esp_eth_phy_new_w5500(&phy_config);
-#endif
+#endif // CONFIG_EXAMPLE_USE_DM9051
 #elif CONFIG_EXAMPLE_USE_OPENETH
     phy_config.autonego_timeout_ms = 100;
     s_mac = esp_eth_mac_new_openeth(&mac_config);
     s_phy = esp_eth_phy_new_dp83848(&phy_config);
-#endif
+#endif // CONFIG_EXAMPLE_USE_INTERNAL_ETHERNET
 
     // Install Ethernet driver
     esp_eth_config_t config = ETH_DEFAULT_CONFIG(s_mac, s_phy);