init commit

python_app/hardware_full/librevna_driver/exceptions.py

@@ -0,0 +1,39 @@
+"""Project exceptions for direct USB and protocol operations."""
+
+from __future__ import annotations
+
+
+class LibreVNAError(Exception):
+    """Base error for all library exceptions."""
+
+
+class ProtocolVersionMismatch(LibreVNAError):
+    """Raised when device protocol version differs from required version."""
+
+
+class CRCError(LibreVNAError):
+    """Raised when packet CRC validation fails."""
+
+
+class NackError(LibreVNAError):
+    """Raised when the device explicitly responds with NACK."""
+
+
+class TimeoutError(LibreVNAError):
+    """Raised when waiting for packet/ack times out."""
+
+
+class DeviceDisconnectedError(LibreVNAError):
+    """Raised when USB transport is disconnected or unavailable."""
+
+
+class IncompleteSweepError(LibreVNAError):
+    """Raised when a sweep does not contain the required points."""
+
+
+class ParseError(LibreVNAError):
+    """Raised when packet decoding or payload parsing fails."""
+
+
+class UnsupportedHardwareError(LibreVNAError):
+    """Raised when a requested operation is unsupported for hardware family."""