C2: Add LIN message support

2026-08-05 01:18:36 +02:00 · 2026-04-15 15:50:33 -04:00
parent 6dc005fcea
commit f5f6d0828b
11 changed files with 1199 additions and 12 deletions
@@ -216,3 +216,133 @@ icsneoc2_error_t icsneoc2_message_is_can(icsneoc2_message_t* message, bool* is_c
 	return icsneoc2_error_success;

 }
+
+icsneoc2_error_t icsneoc2_message_is_lin(icsneoc2_message_t* message, bool* is_lin) {
+	if(!message || !is_lin) {
+		return icsneoc2_error_invalid_parameters;
+	}
+	*is_lin = std::dynamic_pointer_cast<LINMessage>(message->message) != nullptr;
+	return icsneoc2_error_success;
+}
+
+icsneoc2_error_t icsneoc2_message_lin_create(icsneoc2_message_t** message, uint8_t id) {
+	if(!message) {
+		return icsneoc2_error_invalid_parameters;
+	}
+	try {
+		*message = new icsneoc2_message_t;
+		(*message)->message = std::make_shared<LINMessage>(id);
+	} catch(const std::bad_alloc&) {
+		return icsneoc2_error_out_of_memory;
+	}
+	return icsneoc2_error_success;
+}
+
+icsneoc2_error_t icsneoc2_message_lin_props_get(const icsneoc2_message_t* message,
+	uint8_t* id, uint8_t* protected_id, uint8_t* checksum,
+	icsneoc2_lin_msg_type_t* msg_type, bool* is_enhanced_checksum) {
+	if(!message) {
+		return icsneoc2_error_invalid_parameters;
+	}
+	auto lin_msg = std::dynamic_pointer_cast<LINMessage>(message->message);
+	if(!lin_msg) {
+		return icsneoc2_error_invalid_type;
+	}
+	if(id) {
+		*id = lin_msg->ID;
+	}
+	if(protected_id) {
+		*protected_id = lin_msg->protectedID;
+	}
+	if(checksum) {
+		*checksum = lin_msg->checksum;
+	}
+	if(msg_type) {
+		*msg_type = static_cast<icsneoc2_lin_msg_type_t>(lin_msg->linMsgType);
+	}
+	if(is_enhanced_checksum) {
+		*is_enhanced_checksum = lin_msg->isEnhancedChecksum;
+	}
+	return icsneoc2_error_success;
+}
+
+icsneoc2_error_t icsneoc2_message_lin_props_set(icsneoc2_message_t* message,
+	const uint8_t* id, const uint8_t* checksum,
+	const icsneoc2_lin_msg_type_t* msg_type, const bool* is_enhanced_checksum) {
+	if(!message) {
+		return icsneoc2_error_invalid_parameters;
+	}
+	auto lin_msg = std::dynamic_pointer_cast<LINMessage>(message->message);
+	if(!lin_msg) {
+		return icsneoc2_error_invalid_type;
+	}
+	if(id) {
+		lin_msg->ID = *id & 0x3Fu;
+		lin_msg->protectedID = lin_msg->calcProtectedID(lin_msg->ID);
+	}
+	if(checksum) {
+		lin_msg->checksum = *checksum;
+	}
+	if(msg_type) {
+		lin_msg->linMsgType = static_cast<LINMessage::Type>(*msg_type);
+	}
+	if(is_enhanced_checksum) {
+		lin_msg->isEnhancedChecksum = *is_enhanced_checksum;
+	}
+	return icsneoc2_error_success;
+}
+
+icsneoc2_error_t icsneoc2_message_lin_err_flags_get(const icsneoc2_message_t* message, icsneoc2_lin_err_flags_t* err_flags) {
+	if(!message || !err_flags) {
+		return icsneoc2_error_invalid_parameters;
+	}
+	auto lin_msg = std::dynamic_pointer_cast<LINMessage>(message->message);
+	if(!lin_msg) {
+		return icsneoc2_error_invalid_type;
+	}
+	*err_flags = 0;
+	if(lin_msg->errFlags.ErrRxBreakOnly) *err_flags |= ICSNEOC2_LIN_ERR_RX_BREAK_ONLY;
+	if(lin_msg->errFlags.ErrRxBreakSyncOnly) *err_flags |= ICSNEOC2_LIN_ERR_RX_BREAK_SYNC_ONLY;
+	if(lin_msg->errFlags.ErrTxRxMismatch) *err_flags |= ICSNEOC2_LIN_ERR_TX_RX_MISMATCH;
+	if(lin_msg->errFlags.ErrRxBreakNotZero) *err_flags |= ICSNEOC2_LIN_ERR_RX_BREAK_NOT_ZERO;
+	if(lin_msg->errFlags.ErrRxBreakTooShort) *err_flags |= ICSNEOC2_LIN_ERR_RX_BREAK_TOO_SHORT;
+	if(lin_msg->errFlags.ErrRxSyncNot55) *err_flags |= ICSNEOC2_LIN_ERR_RX_SYNC_NOT_55;
+	if(lin_msg->errFlags.ErrRxDataLenOver8) *err_flags |= ICSNEOC2_LIN_ERR_RX_DATA_LEN_OVER_8;
+	if(lin_msg->errFlags.ErrFrameSync) *err_flags |= ICSNEOC2_LIN_ERR_FRAME_SYNC;
+	if(lin_msg->errFlags.ErrFrameMessageID) *err_flags |= ICSNEOC2_LIN_ERR_FRAME_MESSAGE_ID;
+	if(lin_msg->errFlags.ErrFrameResponderData) *err_flags |= ICSNEOC2_LIN_ERR_FRAME_RESPONDER_DATA;
+	if(lin_msg->errFlags.ErrChecksumMatch) *err_flags |= ICSNEOC2_LIN_ERR_CHECKSUM_MATCH;
+	return icsneoc2_error_success;
+}
+
+icsneoc2_error_t icsneoc2_message_lin_status_flags_get(const icsneoc2_message_t* message, icsneoc2_lin_status_flags_t* status_flags) {
+	if(!message || !status_flags) {
+		return icsneoc2_error_invalid_parameters;
+	}
+	auto lin_msg = std::dynamic_pointer_cast<LINMessage>(message->message);
+	if(!lin_msg) {
+		return icsneoc2_error_invalid_type;
+	}
+	*status_flags = 0;
+	if(lin_msg->statusFlags.TxChecksumEnhanced) *status_flags |= ICSNEOC2_LIN_STATUS_TX_CHECKSUM_ENHANCED;
+	if(lin_msg->statusFlags.TxCommander) *status_flags |= ICSNEOC2_LIN_STATUS_TX_COMMANDER;
+	if(lin_msg->statusFlags.TxResponder) *status_flags |= ICSNEOC2_LIN_STATUS_TX_RESPONDER;
+	if(lin_msg->statusFlags.TxAborted) *status_flags |= ICSNEOC2_LIN_STATUS_TX_ABORTED;
+	if(lin_msg->statusFlags.UpdateResponderOnce) *status_flags |= ICSNEOC2_LIN_STATUS_UPDATE_RESPONDER_ONCE;
+	if(lin_msg->statusFlags.HasUpdatedResponderOnce) *status_flags |= ICSNEOC2_LIN_STATUS_HAS_UPDATED_RESPONDER_ONCE;
+	if(lin_msg->statusFlags.BusRecovered) *status_flags |= ICSNEOC2_LIN_STATUS_BUS_RECOVERED;
+	if(lin_msg->statusFlags.BreakOnly) *status_flags |= ICSNEOC2_LIN_STATUS_BREAK_ONLY;
+	return icsneoc2_error_success;
+}
+
+icsneoc2_error_t icsneoc2_message_lin_calc_checksum(icsneoc2_message_t* message) {
+	if(!message) {
+		return icsneoc2_error_invalid_parameters;
+	}
+	auto lin_msg = std::dynamic_pointer_cast<LINMessage>(message->message);
+	if(!lin_msg) {
+		return icsneoc2_error_invalid_type;
+	}
+	LINMessage::calcChecksum(*lin_msg);
+	return icsneoc2_error_success;
+}