option optimize_for = SPEED;
option cc_generic_services = false;

enum EHIDDeviceLocation {
	k_EDeviceLocationLocal = 0;
	k_EDeviceLocationRemote = 2;
	k_EDeviceLocationAny = 3;
}

enum EHIDDeviceDisconnectMethod {
	k_EDeviceDisconnectMethodUnknown = 0;
	k_EDeviceDisconnectMethodBluetooth = 1;
	k_EDeviceDisconnectMethodFeatureReport = 2;
	k_EDeviceDisconnectMethodOutputReport = 3;
}

message CHIDDeviceInfo {
	optional .EHIDDeviceLocation location = 1 [default = k_EDeviceLocationLocal];
	optional string path = 2;
	optional uint32 vendor_id = 3;
	optional uint32 product_id = 4;
	optional string serial_number = 5;
	optional uint32 release_number = 6;
	optional string manufacturer_string = 7;
	optional string product_string = 8;
	optional uint32 usage_page = 9;
	optional uint32 usage = 10;
	optional int32 interface_number = 11 [default = -1];
	optional int32 ostype = 12 [default = -1];
	optional bool is_generic_gamepad = 13;
	optional bool is_generic_joystick = 14;
	optional uint32 caps_bits = 15;
	optional uint32 session_id = 16;
	optional uint32 eControllerType_OBSOLETE = 17 [default = 0];
	optional bool is_xinput_device_OBSOLETE = 18 [default = false];
	optional uint32 session_remote_play_together_appid = 19;
	optional bool is_steamvr_device = 20 [default = false];
}

message CHIDDeviceInputReport {
	optional bytes full_report = 1;
	optional bytes delta_report = 2;
	optional uint32 delta_report_size = 3;
	optional uint32 delta_report_crc = 4;
}

message CHIDMessageToRemote {
	message DeviceOpen {
		optional .CHIDDeviceInfo info = 1;
	}

	message DeviceClose {
		optional uint32 device = 1;
	}

	message DeviceWrite {
		optional uint32 device = 1;
		optional bytes data = 2;
	}

	message DeviceRead {
		optional uint32 device = 1;
		optional uint32 length = 2;
		optional int32 timeout_ms = 3;
	}

	message DeviceSendFeatureReport {
		optional uint32 device = 1;
		optional bytes data = 2;
	}

	message DeviceGetFeatureReport {
		optional uint32 device = 1;
		optional bytes report_number = 2;
		optional uint32 length = 3;
	}

	message DeviceGetVendorString {
		optional uint32 device = 1;
	}

	message DeviceGetProductString {
		optional uint32 device = 1;
	}

	message DeviceGetSerialNumberString {
		optional uint32 device = 1;
	}

	message DeviceStartInputReports {
		optional uint32 device = 1;
		optional uint32 length = 2;
	}

	message DeviceRequestFullReport {
		optional uint32 device = 1;
	}

	message DeviceDisconnect {
		optional uint32 device = 1;
		optional .EHIDDeviceDisconnectMethod disconnectMethod = 2 [default = k_EDeviceDisconnectMethodUnknown];
		optional bytes data = 3;
	}

	optional uint32 request_id = 1;

	oneof command {
		.CHIDMessageToRemote.DeviceOpen device_open = 2;
		.CHIDMessageToRemote.DeviceClose device_close = 3;
		.CHIDMessageToRemote.DeviceWrite device_write = 4;
		.CHIDMessageToRemote.DeviceRead device_read = 5;
		.CHIDMessageToRemote.DeviceSendFeatureReport device_send_feature_report = 6;
		.CHIDMessageToRemote.DeviceGetFeatureReport device_get_feature_report = 7;
		.CHIDMessageToRemote.DeviceGetVendorString device_get_vendor_string = 8;
		.CHIDMessageToRemote.DeviceGetProductString device_get_product_string = 9;
		.CHIDMessageToRemote.DeviceGetSerialNumberString device_get_serial_number_string = 10;
		.CHIDMessageToRemote.DeviceStartInputReports device_start_input_reports = 11;
		.CHIDMessageToRemote.DeviceRequestFullReport device_request_full_report = 12;
		.CHIDMessageToRemote.DeviceDisconnect device_disconnect = 13;
	}
}

message CHIDMessageFromRemote {
	message UpdateDeviceList {
		repeated .CHIDDeviceInfo devices = 1;
	}

	message RequestResponse {
		optional uint32 request_id = 1;
		optional int32 result = 2;
		optional bytes data = 3;
	}

	message DeviceInputReports {
		message DeviceInputReport {
			optional uint32 device = 1;
			repeated .CHIDDeviceInputReport reports = 2;
		}

		repeated .CHIDMessageFromRemote.DeviceInputReports.DeviceInputReport device_reports = 1;
	}

	message CloseDevice {
		optional uint32 device = 1;
	}

	message CloseAllDevices {
	}

	oneof command {
		.CHIDMessageFromRemote.UpdateDeviceList update_device_list = 1;
		.CHIDMessageFromRemote.RequestResponse response = 2;
		.CHIDMessageFromRemote.DeviceInputReports reports = 3;
		.CHIDMessageFromRemote.CloseDevice close_device = 4;
		.CHIDMessageFromRemote.CloseAllDevices close_all_devices = 5;
	}
}