adds abstraction for connection (#111)

1 files changed, 53 insertions, 0 deletions

diff --git a/hid/lib/drivers/connection.h b/hid/lib/drivers/connection.h
new file mode 100644
index 00000000..20560571
--- /dev/null
+++ b/hid/lib/drivers/connection.h
@@ -0,0 +1,53 @@
+/*****************************************************************************
+#                                                                            #
+#    KVMD - The main PiKVM daemon.                                           #
+#                                                                            #
+#    Copyright (C) 2018-2022  Maxim Devaev <[email protected]>               #
+#                                                                            #
+#    This program is free software: you can redistribute it and/or modify    #
+#    it under the terms of the GNU General Public License as published by    #
+#    the Free Software Foundation, either version 3 of the License, or       #
+#    (at your option) any later version.                                     #
+#                                                                            #
+#    This program is distributed in the hope that it will be useful,         #
+#    but WITHOUT ANY WARRANTY; without even the implied warranty of          #
+#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the           #
+#    GNU General Public License for more details.                            #
+#                                                                            #
+#    You should have received a copy of the GNU General Public License       #
+#    along with this program.  If not, see <https://www.gnu.org/licenses/>.  #
+#                                                                            #
+*****************************************************************************/
+
+
+#pragma once
+
+#include "driver.h"
+#include "stdint.h"
+
+namespace DRIVERS {
+	typedef void(*DataHandler)(const uint8_t * data, size_t len);
+	typedef void(*TimeoutHandler)();
+
+	struct Connection : public Driver {
+		using Driver::Driver;
+
+		virtual void begin() {}
+		
+		virtual void periodic() {}
+
+		void onTimeout(TimeoutHandler cb) {
+			_timeout_cb = cb;
+		}
+
+		void onData(DataHandler cb) {
+			_data_cb = cb;
+		}
+
+		virtual void write(const uint8_t *data, size_t size) = 0;
+		
+		protected:
+			TimeoutHandler _timeout_cb = nullptr;
+			DataHandler _data_cb = nullptr;
+	};
+}