Merge pull request #903 from meshtastic/serial_hal

Add SerialHal proto definitions

Author: thebentern

meshtastic/serial_hal.proto

@@ -0,0 +1,44 @@
+syntax = "proto3";
+
+package meshtastic;
+
+option csharp_namespace = "Meshtastic.Protobufs";
+option go_package = "github.com/meshtastic/go/generated";
+option java_outer_classname = "SerialHal";
+option java_package = "org.meshtastic.proto";
+option swift_prefix = "";
+
+message SerialHalCommand {
+  enum Type {
+    UNSET = 0;
+    PIN_MODE = 1;
+    DIGITAL_WRITE = 2;
+    DIGITAL_READ = 3;
+    ATTACH_INTERRUPT = 4;
+    DETACH_INTERRUPT = 5;
+    SPI_TRANSFER = 6;
+    NOOP = 7;
+  }
+
+  uint32 transaction_id = 1;
+  Type type = 2;
+  uint32 pin = 3;
+  uint32 value = 4;
+  uint32 mode = 5;
+  bytes data = 6;
+}
+
+message SerialHalResponse {
+  enum Result {
+    OK = 0;
+    ERROR = 1;
+    BAD_REQUEST = 2;
+    UNSUPPORTED = 3;
+  }
+
+  uint32 transaction_id = 1;
+  Result result = 2;
+  uint32 value = 3;
+  bytes data = 4;
+  string error = 5;
+}