initial refactoring

protobuf/proto/Ethernet.proto

@@ -0,0 +1,52 @@
+syntax = "proto3";
+
+package sys;
+import "Common.proto";
+import "GPIO.proto";
+import "nanopb.proto";
+import "customoptions.proto";
+option (nanopb_fileopt).enum_to_string = true;
+
+enum EthModelEnum {
+  UNSPECIFIED_ETHMODEL = 0;
+  LAN8720 = 1;
+  DM9051 = 2;
+  W5500 = 3;
+}
+enum EthType {  // This enum is used to define the union type for Eth
+  UNSPECIFIED_ETH = 0;  // for unspecified type
+  SPI = 1;
+  RMII = 2;
+}
+message EthCommon { 
+  option (nanopb_msgopt).msgid  = 10025;
+  EthModelEnum model = 1;
+  GPIO rst = 2;
+}
+
+// SPI Specific Ethernet definitions
+message EthSPI {
+  option (nanopb_msgopt).msgid  = 10026;
+  GPIO cs = 1; // CS pin
+  int32 speed = 2 [(nanopb).int_size = IS_16]; // SPI Bus speed
+  GPIO intr = 3;
+  int32 host = 4  [(nanopb).int_size = IS_8,(cust_field).v_int32 = 2 ];  // Defaults to 2 in your application logic
+}
+
+// RMII Specific Ethernet definitions
+message EthRMII {
+  option (nanopb_msgopt).msgid  = 10027;
+  GPIO mdc = 1;
+  GPIO mdio = 2;
+}
+
+// Ethernet module configuration
+message Eth {
+  option (nanopb_msgopt).msgid  = 10028;
+  DeviceTypeEnum type = 1;
+  EthCommon common = 2;
+  oneof ethType {
+    EthSPI spi = 3;
+    EthRMII rmii = 4;
+  }
+}