added UsbDataHandler

proto/firmware.proto

@@ -0,0 +1,32 @@
+syntax = "proto2";
+
+import "nanopb.proto";
+
+message FirmwareStart {
+  required string name = 1 [(nanopb).max_size = 32];
+  required uint32 size = 2;
+  required uint32 packages = 3;
+  required uint32 device_id = 4;
+  required uint32 crc_fw = 5;
+}
+
+message FirmwarePackage {
+  required uint32 counter = 1;
+  required uint32 crc_pac = 2;
+  required uint32 device_id = 3;
+  required bytes data = 4 [(nanopb).max_size = 256];
+}
+
+message FirmwarePackageAck {
+  required uint32 counter = 1;
+  required uint32 crc_pac = 2;
+  required uint32 device_id = 3;
+  required bool ack =4;
+}
+
+message FirmwareDone {
+  required uint32 size = 1;
+  required uint32 crc_fw = 2;
+  required uint32 device_id = 3;
+}
+