From 2ee4716091fbcc7364a64a3eb7cf5e4d3d978b63 Mon Sep 17 00:00:00 2001
From: Pieter De Gendt <pieter.degendt@basalte.be>
Date: Mon, 11 Mar 2024 15:14:05 +0100
Subject: [PATCH] drivers: ethernet: Build ethernet drivers with
 ETH_DRIVER_RAW_MODE

Allow building ethernet drivers without NET_L2_ETHERNET config symbol.

Signed-off-by: Pieter De Gendt <pieter.degendt@basalte.be>
---
 drivers/CMakeLists.txt          |  2 +-
 drivers/ethernet/CMakeLists.txt |  5 ++++
 drivers/ethernet/eth_raw.c      | 48 +++++++++++++++++++++++++++++++++
 3 files changed, 54 insertions(+), 1 deletion(-)
 create mode 100644 drivers/ethernet/eth_raw.c

diff --git a/drivers/CMakeLists.txt b/drivers/CMakeLists.txt
index f0236ef653a..e1dbab7e1a2 100644
--- a/drivers/CMakeLists.txt
+++ b/drivers/CMakeLists.txt
@@ -35,6 +35,7 @@ add_subdirectory_ifdef(CONFIG_EDAC edac)
 add_subdirectory_ifdef(CONFIG_EEPROM eeprom)
 add_subdirectory_ifdef(CONFIG_ENTROPY_GENERATOR entropy)
 add_subdirectory_ifdef(CONFIG_ESPI espi)
+add_subdirectory_ifdef(CONFIG_ETH_DRIVER ethernet)
 add_subdirectory_ifdef(CONFIG_FLASH flash)
 add_subdirectory_ifdef(CONFIG_FPGA fpga)
 add_subdirectory_ifdef(CONFIG_FUEL_GAUGE fuel_gauge)
@@ -61,7 +62,6 @@ add_subdirectory_ifdef(CONFIG_MIPI_DSI mipi_dsi)
 add_subdirectory_ifdef(CONFIG_MM_DRV mm)
 add_subdirectory_ifdef(CONFIG_MODEM modem)
 add_subdirectory_ifdef(CONFIG_NET_DRIVERS net)
-add_subdirectory_ifdef(CONFIG_NET_L2_ETHERNET ethernet)
 add_subdirectory_ifdef(CONFIG_PECI peci)
 add_subdirectory_ifdef(CONFIG_PINCTRL pinctrl)
 add_subdirectory_ifdef(CONFIG_PM_CPU_OPS pm_cpu_ops)
diff --git a/drivers/ethernet/CMakeLists.txt b/drivers/ethernet/CMakeLists.txt
index def0c5bf186..fcc43cf77f7 100644
--- a/drivers/ethernet/CMakeLists.txt
+++ b/drivers/ethernet/CMakeLists.txt
@@ -2,6 +2,11 @@
 
 zephyr_library()
 zephyr_library_property(ALLOW_EMPTY TRUE)
+zephyr_library_include_directories(${ZEPHYR_BASE}/subsys/net/l2)
+
+zephyr_library_sources_ifdef(CONFIG_ETH_DRIVER_RAW_MODE
+  eth_raw.c
+  )
 
 zephyr_library_sources_ifdef(CONFIG_ETH_GECKO
 	eth_gecko.c
diff --git a/drivers/ethernet/eth_raw.c b/drivers/ethernet/eth_raw.c
new file mode 100644
index 00000000000..69ab3b528f7
--- /dev/null
+++ b/drivers/ethernet/eth_raw.c
@@ -0,0 +1,48 @@
+/**
+ * @file
+ * @brief Ethernet Driver raw mode
+ *
+ * This file contains a collection of functions called from the ethernet drivers
+ * to the missing upper layer.
+ */
+
+/*
+ * Copyright 2024 Basalte bv
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include <zephyr/net/ethernet.h>
+
+__weak void ethernet_init(struct net_if *iface)
+{
+	ARG_UNUSED(iface);
+}
+
+__weak void net_eth_carrier_on(struct net_if *iface)
+{
+	ARG_UNUSED(iface);
+}
+
+__weak void net_eth_carrier_off(struct net_if *iface)
+{
+	ARG_UNUSED(iface);
+}
+
+__weak int net_recv_data(struct net_if *iface, struct net_pkt *pkt)
+{
+	ARG_UNUSED(iface);
+	ARG_UNUSED(pkt);
+
+	return -ENOTSUP;
+}
+
+__weak void net_if_carrier_on(struct net_if *iface)
+{
+	ARG_UNUSED(iface);
+}
+
+__weak void net_if_carrier_off(struct net_if *iface)
+{
+	ARG_UNUSED(iface);
+}