Socket component (#2250)

esphome/components/socket/__init__.py

@@ -0,0 +1,28 @@
+import esphome.config_validation as cv
+import esphome.codegen as cg
+
+CODEOWNERS = ["@esphome/core"]
+
+CONF_IMPLEMENTATION = "implementation"
+IMPLEMENTATION_LWIP_TCP = "lwip_tcp"
+IMPLEMENTATION_BSD_SOCKETS = "bsd_sockets"
+
+CONFIG_SCHEMA = cv.Schema(
+    {
+        cv.SplitDefault(
+            CONF_IMPLEMENTATION,
+            esp8266=IMPLEMENTATION_LWIP_TCP,
+            esp32=IMPLEMENTATION_BSD_SOCKETS,
+        ): cv.one_of(
+            IMPLEMENTATION_LWIP_TCP, IMPLEMENTATION_BSD_SOCKETS, lower=True, space="_"
+        ),
+    }
+)
+
+
+async def to_code(config):
+    impl = config[CONF_IMPLEMENTATION]
+    if impl == IMPLEMENTATION_LWIP_TCP:
+        cg.add_define("USE_SOCKET_IMPL_LWIP_TCP")
+    elif impl == IMPLEMENTATION_BSD_SOCKETS:
+        cg.add_define("USE_SOCKET_IMPL_BSD_SOCKETS")