Bugfix/modbus fix copyright headers

* Original commit: espressif/esp-idf@bdf0298009

components/freemodbus/common/esp_modbus_callbacks.h

@@ -1,16 +1,7 @@
-/* Copyright 2018 Espressif Systems (Shanghai) PTE LTD
+/*
+ * SPDX-FileCopyrightText: 2016-2021 Espressif Systems (Shanghai) CO LTD
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
+ * SPDX-License-Identifier: Apache-2.0
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
  */
 
 // Stack callback functions prototypes

components/freemodbus/common/esp_modbus_master.c

@@ -1,16 +1,7 @@
-/* Copyright 2018 Espressif Systems (Shanghai) PTE LTD
+/*
+ * SPDX-FileCopyrightText: 2016-2021 Espressif Systems (Shanghai) CO LTD
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
+ * SPDX-License-Identifier: Apache-2.0
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
  */
 
 #include "esp_err.h"            // for esp_err_t

components/freemodbus/common/esp_modbus_master_serial.c

@@ -1,16 +1,7 @@
-/* Copyright 2018 Espressif Systems (Shanghai) PTE LTD
+/*
+ * SPDX-FileCopyrightText: 2016-2021 Espressif Systems (Shanghai) CO LTD
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
+ * SPDX-License-Identifier: Apache-2.0
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
  */
 
 #include "esp_err.h"                // for esp_err_t

components/freemodbus/common/esp_modbus_master_tcp.c

@@ -1,16 +1,7 @@
-/* Copyright 2018 Espressif Systems (Shanghai) PTE LTD
+/*
+ * SPDX-FileCopyrightText: 2016-2021 Espressif Systems (Shanghai) CO LTD
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
+ * SPDX-License-Identifier: Apache-2.0
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
  */
 
 #include "esp_err.h"                // for esp_err_t

components/freemodbus/common/esp_modbus_slave.c

@@ -1,16 +1,7 @@
-/* Copyright 2018 Espressif Systems (Shanghai) PTE LTD
+/*
+ * SPDX-FileCopyrightText: 2016-2021 Espressif Systems (Shanghai) CO LTD
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
+ * SPDX-License-Identifier: Apache-2.0
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
  */
 
 #include "esp_err.h"                // for esp_err_t

components/freemodbus/common/esp_modbus_slave_serial.c

@@ -1,16 +1,7 @@
-/* Copyright 2018 Espressif Systems (Shanghai) PTE LTD
+/*
+ * SPDX-FileCopyrightText: 2016-2021 Espressif Systems (Shanghai) CO LTD
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
+ * SPDX-License-Identifier: Apache-2.0
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
  */
 
 #include "esp_err.h"                    // for esp_err_t

components/freemodbus/common/esp_modbus_slave_tcp.c

@@ -1,16 +1,7 @@
-/* Copyright 2018 Espressif Systems (Shanghai) PTE LTD
+/*
+ * SPDX-FileCopyrightText: 2016-2021 Espressif Systems (Shanghai) CO LTD
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
+ * SPDX-License-Identifier: Apache-2.0
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
  */
 
 #include "esp_err.h"                // for esp_err_t

components/freemodbus/common/include/esp_modbus_common.h

@@ -1,16 +1,7 @@
-/* Copyright 2018 Espressif Systems (Shanghai) PTE LTD
+/*
+ * SPDX-FileCopyrightText: 2016-2021 Espressif Systems (Shanghai) CO LTD
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
+ * SPDX-License-Identifier: Apache-2.0
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
  */
 
 #ifndef _MB_IFACE_COMMON_H

components/freemodbus/common/include/esp_modbus_master.h

@@ -1,16 +1,7 @@
-/* Copyright 2018 Espressif Systems (Shanghai) PTE LTD
+/*
+ * SPDX-FileCopyrightText: 2016-2021 Espressif Systems (Shanghai) CO LTD
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
+ * SPDX-License-Identifier: Apache-2.0
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
  */
 
 #ifndef _ESP_MB_MASTER_INTERFACE_H

components/freemodbus/common/include/esp_modbus_slave.h

@@ -1,16 +1,7 @@
-/* Copyright 2018 Espressif Systems (Shanghai) PTE LTD
+/*
+ * SPDX-FileCopyrightText: 2016-2021 Espressif Systems (Shanghai) CO LTD
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
+ * SPDX-License-Identifier: Apache-2.0
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
  */
 
 #ifndef _ESP_MB_SLAVE_INTERFACE_H

components/freemodbus/common/include/mbcontroller.h

@@ -1,16 +1,7 @@
-/* Copyright 2018 Espressif Systems (Shanghai) PTE LTD
+/*
+ * SPDX-FileCopyrightText: 2016-2021 Espressif Systems (Shanghai) CO LTD
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
+ * SPDX-License-Identifier: Apache-2.0
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
  */
 //  mbcontroller.h
 //  mbcontroller - common Modbus controller header file

components/freemodbus/common/mbc_master.h

@@ -1,17 +1,9 @@
-/* Copyright 2018 Espressif Systems (Shanghai) PTE LTD
+/*
+ * SPDX-FileCopyrightText: 2016-2021 Espressif Systems (Shanghai) CO LTD
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
+ * SPDX-License-Identifier: Apache-2.0
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
  */
+
 #ifndef _MB_CONTROLLER_MASTER_H
 #define _MB_CONTROLLER_MASTER_H
 

components/freemodbus/common/mbc_slave.h

@@ -1,17 +1,9 @@
-/* Copyright 2018 Espressif Systems (Shanghai) PTE LTD
+/*
+ * SPDX-FileCopyrightText: 2016-2021 Espressif Systems (Shanghai) CO LTD
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
+ * SPDX-License-Identifier: Apache-2.0
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
  */
+
 #ifndef _MB_CONTROLLER_SLAVE_H
 #define _MB_CONTROLLER_SLAVE_H
 

components/freemodbus/modbus/ascii/mbascii.c

@@ -1,3 +1,10 @@
+/*
+ * SPDX-FileCopyrightText: 2006 Christian Walter
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ * SPDX-FileContributor: 2016-2021 Espressif Systems (Shanghai) CO LTD
+ */
 /*
  * FreeModbus Libary: A portable Modbus implementation for Modbus ASCII/RTU.
  * Copyright (c) 2006 Christian Walter <wolti@sil.at>

components/freemodbus/modbus/ascii/mbascii.h

@@ -1,3 +1,10 @@
+/*
+ * SPDX-FileCopyrightText: 2006 Christian Walter
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ * SPDX-FileContributor: 2016-2021 Espressif Systems (Shanghai) CO LTD
+ */
 /*
  * FreeModbus Libary: A portable Modbus implementation for Modbus ASCII/RTU.
  * Copyright (c) 2006 Christian Walter <wolti@sil.at>

components/freemodbus/modbus/ascii/mbascii_m.c

@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2016-2021 Espressif Systems (Shanghai) CO LTD
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
 /*
  * FreeModbus Libary: A portable Modbus implementation for Modbus ASCII/RTU.
  * Copyright (c) 2006 Christian Walter <wolti@sil.at>

components/freemodbus/modbus/functions/mbfunccoils.c

@@ -1,3 +1,10 @@
+/*
+ * SPDX-FileCopyrightText: 2006 Christian Walter
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ * SPDX-FileContributor: 2016-2021 Espressif Systems (Shanghai) CO LTD
+ */
 /*
  * FreeModbus Libary: A portable Modbus implementation for Modbus ASCII/RTU.
  * Copyright (c) 2006 Christian Walter <wolti@sil.at>

components/freemodbus/modbus/functions/mbfunccoils_m.c

@@ -1,3 +1,10 @@
+/*
+ * SPDX-FileCopyrightText: 2013 Armink
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ * SPDX-FileContributor: 2016-2021 Espressif Systems (Shanghai) CO LTD
+ */
 /*
  * FreeModbus Libary: A portable Modbus implementation for Modbus ASCII/RTU.
  * Copyright (C) 2013 Armink <armink.ztl@gmail.com>

components/freemodbus/modbus/functions/mbfuncdiag.c

@@ -1,3 +1,10 @@
+/*
+ * SPDX-FileCopyrightText: 2006 Christian Walter
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ * SPDX-FileContributor: 2016-2021 Espressif Systems (Shanghai) CO LTD
+ */
 /*
  * FreeModbus Libary: A portable Modbus implementation for Modbus ASCII/RTU.
  * Copyright (c) 2006 Christian Walter <wolti@sil.at>

components/freemodbus/modbus/functions/mbfuncdisc.c

@@ -1,3 +1,10 @@
+/*
+ * SPDX-FileCopyrightText: 2006 Christian Walter
+ *
+ * SPDX-License-Identifier: LGPL-2.0-only
+ *
+ * SPDX-FileContributor: 2016-2021 Espressif Systems (Shanghai) CO LTD
+ */
  /*
   * FreeRTOS Modbus Libary: A Modbus serial implementation for FreeRTOS
   * Copyright (C) 2006 Christian Walter <wolti@sil.at>

components/freemodbus/modbus/functions/mbfuncdisc_m.c

@@ -1,3 +1,10 @@
+/*
+ * SPDX-FileCopyrightText: 2013 Armink
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ * SPDX-FileContributor: 2016-2021 Espressif Systems (Shanghai) CO LTD
+ */
 /*
  * FreeModbus Libary: A portable Modbus implementation for Modbus ASCII/RTU.
  * Copyright (C) 2013 Armink <armink.ztl@gmail.com>
@@ -28,8 +35,6 @@
  * File: $Id: mbfuncdisc_m.c,v 1.60 2013/10/15 8:48:20 Armink Add Master Functions  Exp $
  */
 
-
-
 /* ----------------------- System includes ----------------------------------*/
 #include "stdlib.h"
 #include "string.h"

components/freemodbus/modbus/functions/mbfuncholding.c

@@ -1,3 +1,10 @@
+/*
+ * SPDX-FileCopyrightText: 2006 Christian Walter
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ * SPDX-FileContributor: 2016-2021 Espressif Systems (Shanghai) CO LTD
+ */
 /*
  * FreeModbus Libary: A portable Modbus implementation for Modbus ASCII/RTU.
  * Copyright (c) 2006 Christian Walter <wolti@sil.at>

components/freemodbus/modbus/functions/mbfuncholding_m.c

@@ -1,3 +1,10 @@
+/*
+ * SPDX-FileCopyrightText: 2013 Armink
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ * SPDX-FileContributor: 2016-2021 Espressif Systems (Shanghai) CO LTD
+ */
 /*
  * FreeModbus Libary: A portable Modbus implementation for Modbus ASCII/RTU.
  * Copyright (C) 2013 Armink <armink.ztl@gmail.com>

components/freemodbus/modbus/functions/mbfuncinput.c

@@ -1,3 +1,10 @@
+/*
+ * SPDX-FileCopyrightText: 2006 Christian Walter
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ * SPDX-FileContributor: 2016-2021 Espressif Systems (Shanghai) CO LTD
+ */
 /*
  * FreeModbus Libary: A portable Modbus implementation for Modbus ASCII/RTU.
  * Copyright (c) 2006 Christian Walter <wolti@sil.at>

components/freemodbus/modbus/functions/mbfuncinput_m.c

@@ -1,3 +1,10 @@
+/*
+ * SPDX-FileCopyrightText: 2013 Armink
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ * SPDX-FileContributor: 2016-2021 Espressif Systems (Shanghai) CO LTD
+ */
 /*
  * FreeModbus Libary: A portable Modbus implementation for Modbus ASCII/RTU.
  * Copyright (C) 2013 Armink <armink.ztl@gmail.com>

components/freemodbus/modbus/functions/mbfuncother.c

@@ -1,3 +1,10 @@
+/*
+ * SPDX-FileCopyrightText: 2006 Christian Walter
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ * SPDX-FileContributor: 2016-2021 Espressif Systems (Shanghai) CO LTD
+ */
 /*
  * FreeModbus Libary: A portable Modbus implementation for Modbus ASCII/RTU.
  * Copyright (c) 2006 Christian Walter <wolti@sil.at>

components/freemodbus/modbus/functions/mbutils.c

@@ -1,3 +1,10 @@
+/*
+ * SPDX-FileCopyrightText: 2006 Christian Walter
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ * SPDX-FileContributor: 2016-2021 Espressif Systems (Shanghai) CO LTD
+ */
 /*
  * FreeModbus Libary: A portable Modbus implementation for Modbus ASCII/RTU.
  * Copyright (c) 2006 Christian Walter <wolti@sil.at>

components/freemodbus/modbus/include/mb.h

@@ -1,3 +1,10 @@
+/*
+ * SPDX-FileCopyrightText: 2006 Christian Walter
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ * SPDX-FileContributor: 2016-2021 Espressif Systems (Shanghai) CO LTD
+ */
 /*
  * FreeModbus Libary: A portable Modbus implementation for Modbus ASCII/RTU.
  * Copyright (c) 2006 Christian Walter <wolti@sil.at>

components/freemodbus/modbus/include/mb_m.h

@@ -1,3 +1,10 @@
+/*
+ * SPDX-FileCopyrightText: 2013 Armink
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ * SPDX-FileContributor: 2016-2021 Espressif Systems (Shanghai) CO LTD
+ */
 /*
  * FreeModbus Libary: A portable Modbus implementation for Modbus ASCII/RTU.
  * Copyright (C) 2013 Armink <armink.ztl@gmail.com>

components/freemodbus/modbus/include/mbconfig.h

@@ -1,3 +1,10 @@
+/*
+ * SPDX-FileCopyrightText: 2006 Christian Walter
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ * SPDX-FileContributor: 2016-2021 Espressif Systems (Shanghai) CO LTD
+ */
 /*
  * FreeModbus Libary: A portable Modbus implementation for Modbus ASCII/RTU.
  * Copyright (c) 2006 Christian Walter <wolti@sil.at>

components/freemodbus/modbus/include/mbframe.h

@@ -1,3 +1,10 @@
+/*
+ * SPDX-FileCopyrightText: 2006 Christian Walter
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ * SPDX-FileContributor: 2016-2021 Espressif Systems (Shanghai) CO LTD
+ */
 /*
  * FreeModbus Libary: A portable Modbus implementation for Modbus ASCII/RTU.
  * Copyright (c) 2006 Christian Walter <wolti@sil.at>

components/freemodbus/modbus/include/mbfunc.h

@@ -1,3 +1,10 @@
+/*
+ * SPDX-FileCopyrightText: 2006 Christian Walter
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ * SPDX-FileContributor: 2016-2021 Espressif Systems (Shanghai) CO LTD
+ */
 /*
  * FreeModbus Libary: A portable Modbus implementation for Modbus ASCII/RTU.
  * Copyright (c) 2006 Christian Walter <wolti@sil.at>

components/freemodbus/modbus/include/mbport.h

@@ -1,3 +1,10 @@
+/*
+ * SPDX-FileCopyrightText: 2006 Christian Walter
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ * SPDX-FileContributor: 2016-2021 Espressif Systems (Shanghai) CO LTD
+ */
 /*
  * FreeModbus Libary: A portable Modbus implementation for Modbus ASCII/RTU.
  * Copyright (c) 2006 Christian Walter <wolti@sil.at>

components/freemodbus/modbus/include/mbproto.h

@@ -1,3 +1,10 @@
+/*
+ * SPDX-FileCopyrightText: 2006 Christian Walter
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ * SPDX-FileContributor: 2016-2021 Espressif Systems (Shanghai) CO LTD
+ */
 /*
  * FreeModbus Libary: A portable Modbus implementation for Modbus ASCII/RTU.
  * Copyright (c) 2006 Christian Walter <wolti@sil.at>

components/freemodbus/modbus/include/mbutils.h

@@ -1,3 +1,10 @@
+/*
+ * SPDX-FileCopyrightText: 2006 Christian Walter
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ * SPDX-FileContributor: 2016-2021 Espressif Systems (Shanghai) CO LTD
+ */
 /*
  * FreeModbus Libary: A portable Modbus implementation for Modbus ASCII/RTU.
  * Copyright (c) 2006 Christian Walter <wolti@sil.at>

components/freemodbus/modbus/mb.c

@@ -1,3 +1,10 @@
+/*
+ * SPDX-FileCopyrightText: 2006 Christian Walter
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ * SPDX-FileContributor: 2016-2021 Espressif Systems (Shanghai) CO LTD
+ */
 /*
  * FreeModbus Libary: A portable Modbus implementation for Modbus ASCII/RTU.
  * Copyright (c) 2006 Christian Walter <wolti@sil.at>

components/freemodbus/modbus/mb_m.c

@@ -1,3 +1,10 @@
+/*
+ * SPDX-FileCopyrightText: 2013 Armink
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ * SPDX-FileContributor: 2016-2021 Espressif Systems (Shanghai) CO LTD
+ */
 /*
  * FreeModbus Libary: A portable Modbus implementation for Modbus ASCII/RTU.
  * Copyright (C) 2013 Armink <armink.ztl@gmail.com>

components/freemodbus/modbus/rtu/mbcrc.c

@@ -1,3 +1,10 @@
+/*
+ * SPDX-FileCopyrightText: 2006 Christian Walter
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ * SPDX-FileContributor: 2016-2021 Espressif Systems (Shanghai) CO LTD
+ */
 /*
  * FreeModbus Libary: A portable Modbus implementation for Modbus ASCII/RTU.
  * Copyright (c) 2006 Christian Walter <wolti@sil.at>

components/freemodbus/modbus/rtu/mbcrc.h

@@ -1,3 +1,10 @@
+/*
+ * SPDX-FileCopyrightText: 2006 Christian Walter
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ * SPDX-FileContributor: 2016-2021 Espressif Systems (Shanghai) CO LTD
+ */
 /*
  * FreeModbus Libary: A portable Modbus implementation for Modbus ASCII/RTU.
  * Copyright (c) 2006 Christian Walter <wolti@sil.at>

components/freemodbus/modbus/rtu/mbrtu.c

@@ -1,3 +1,10 @@
+/*
+ * SPDX-FileCopyrightText: 2006 Christian Walter
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ * SPDX-FileContributor: 2016-2021 Espressif Systems (Shanghai) CO LTD
+ */
 /*
  * FreeModbus Libary: A portable Modbus implementation for Modbus ASCII/RTU.
  * Copyright (c) 2006 Christian Walter <wolti@sil.at>

components/freemodbus/modbus/rtu/mbrtu.h

@@ -1,3 +1,10 @@
+/*
+ * SPDX-FileCopyrightText: 2006 Christian Walter
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ * SPDX-FileContributor: 2016-2021 Espressif Systems (Shanghai) CO LTD
+ */
 /*
  * FreeModbus Libary: A portable Modbus implementation for Modbus ASCII/RTU.
  * Copyright (c) 2006 Christian Walter <wolti@sil.at>

components/freemodbus/modbus/rtu/mbrtu_m.c

@@ -1,3 +1,10 @@
+/*
+ * SPDX-FileCopyrightText: 2013 Armink
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ * SPDX-FileContributor: 2016-2021 Espressif Systems (Shanghai) CO LTD
+ */
 /*
  * FreeModbus Libary: A portable Modbus implementation for Modbus ASCII/RTU.
  * Copyright (c) 2013 China Beijing Armink <armink.ztl@gmail.com>

components/freemodbus/modbus/tcp/mbtcp.c

@@ -1,3 +1,10 @@
+/*
+ * SPDX-FileCopyrightText: 2006 Christian Walter
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ * SPDX-FileContributor: 2016-2021 Espressif Systems (Shanghai) CO LTD
+ */
 /*
  * FreeModbus Libary: A portable Modbus implementation for Modbus ASCII/RTU.
  * Copyright (c) 2006 Christian Walter <wolti@sil.at>

components/freemodbus/modbus/tcp/mbtcp.h

@@ -1,3 +1,10 @@
+/*
+ * SPDX-FileCopyrightText: 2006 Christian Walter
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ * SPDX-FileContributor: 2016-2021 Espressif Systems (Shanghai) CO LTD
+ */
 /*
  * FreeModbus Libary: A portable Modbus implementation for Modbus ASCII/RTU.
  * Copyright (c) 2006 Christian Walter <wolti@sil.at>

components/freemodbus/modbus/tcp/mbtcp_m.c

@@ -1,3 +1,10 @@
+/*
+ * SPDX-FileCopyrightText: 2006 Christian Walter
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ * SPDX-FileContributor: 2016-2021 Espressif Systems (Shanghai) CO LTD
+ */
 /*
  * FreeModbus Libary: A portable Modbus implementation for Modbus ASCII/RTU.
  * Copyright (c) 2006 Christian Walter <wolti@sil.at>

components/freemodbus/modbus/tcp/mbtcp_m.h

@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2016-2021 Espressif Systems (Shanghai) CO LTD
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
 /*
  * FreeModbus Libary: A portable Modbus implementation for Modbus ASCII/RTU.
  * Copyright (c) 2006 Christian Walter <wolti@sil.at>

components/freemodbus/port/port.c

@@ -1,16 +1,9 @@
-/* Copyright 2018 Espressif Systems (Shanghai) PTE LTD
+/*
+ * SPDX-FileCopyrightText: 2013 Armink
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
+ * SPDX-License-Identifier: LGPL-2.0-only
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ * SPDX-FileContributor: 2016-2021 Espressif Systems (Shanghai) CO LTD
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
  */
 /*
   * FreeModbus Libary: RT-Thread Port

components/freemodbus/port/port.h

@@ -1,16 +1,38 @@
-/* Copyright 2018 Espressif Systems (Shanghai) PTE LTD
+/*
+ * SPDX-FileCopyrightText: 2010 Christian Walter
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
+ * SPDX-License-Identifier: BSD-3-Clause
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ * SPDX-FileContributor: 2016-2021 Espressif Systems (Shanghai) CO LTD
+ */
+/*
+ * FreeModbus Libary: ESP32 Port Demo Application
+ * Copyright (C) 2010 Christian Walter <cwalter@embedded-solutions.at>
  *
- * Unless required by applicable law or agreed to in writing, software
+ *
- * distributed under the License is distributed on an "AS IS" BASIS,
+ * Redistribution and use in source and binary forms, with or without
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * modification, are permitted provided that the following conditions
- * See the License for the specific language governing permissions and
+ * are met:
- * limitations under the License.
+ * 1. Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *   notice, this list of conditions and the following disclaimer in the
+ *   documentation and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *   derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * IF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * File: $Id: portother.c,v 1.1 2010/06/06 13:07:20 wolti Exp $
  */
 
 #ifndef PORT_COMMON_H_

components/freemodbus/port/portevent.c

@@ -1,16 +1,9 @@
-/* Copyright 2018 Espressif Systems (Shanghai) PTE LTD
+/*
+ * SPDX-FileCopyrightText: 2010 Christian Walter
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
+ * SPDX-License-Identifier: BSD-3-Clause
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ * SPDX-FileContributor: 2016-2021 Espressif Systems (Shanghai) CO LTD
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
  */
 /*
  * FreeModbus Libary: ESP32 Port Demo Application

components/freemodbus/port/portevent_m.c

@@ -1,16 +1,9 @@
-/* Copyright 2018 Espressif Systems (Shanghai) PTE LTD
+/*
+ * SPDX-FileCopyrightText: 2013 Armink
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
+ * SPDX-License-Identifier: LGPL-2.0-only
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ * SPDX-FileContributor: 2016-2021 Espressif Systems (Shanghai) CO LTD
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
  */
 /*
  * FreeModbus Libary: ESP32 Port Demo Application

components/freemodbus/port/portother.c

@@ -1,16 +1,9 @@
-/* Copyright 2018 Espressif Systems (Shanghai) PTE LTD
+/*
+ * SPDX-FileCopyrightText: 2010 Christian Walter
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
+ * SPDX-License-Identifier: BSD-3-Clause
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ * SPDX-FileContributor: 2016-2021 Espressif Systems (Shanghai) CO LTD
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
  */
 /*
  * FreeModbus Libary: ESP32 Demo Application

components/freemodbus/port/portother_m.c

@@ -1,16 +1,9 @@
-/* Copyright 2018 Espressif Systems (Shanghai) PTE LTD
+/*
+ * SPDX-FileCopyrightText: 2006 Christian Walter
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
+ * SPDX-License-Identifier: BSD-3-Clause
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ * SPDX-FileContributor: 2016-2021 Espressif Systems (Shanghai) CO LTD
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
  */
 /*
  * FreeModbus Libary: ESP32 Demo Application

components/freemodbus/port/portserial.c

@@ -1,16 +1,9 @@
-/* Copyright 2018 Espressif Systems (Shanghai) PTE LTD
+/*
+ * SPDX-FileCopyrightText: 2010 Christian Walter
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
+ * SPDX-License-Identifier: BSD-3-Clause
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ * SPDX-FileContributor: 2016-2021 Espressif Systems (Shanghai) CO LTD
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
  */
 /*
  * FreeModbus Libary: ESP32 Port Demo Application

components/freemodbus/port/portserial_m.c

@@ -1,16 +1,9 @@
-/* Copyright 2018 Espressif Systems (Shanghai) PTE LTD
+/*
+ * SPDX-FileCopyrightText: 2013 Armink
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
+ * SPDX-License-Identifier: LGPL-2.0-only
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ * SPDX-FileContributor: 2016-2021 Espressif Systems (Shanghai) CO LTD
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
  */
 /*
  * FreeModbus Libary: ESP32 Port Demo Application

components/freemodbus/port/porttimer.c

@@ -1,7 +1,9 @@
 /*
- * SPDX-FileCopyrightText: 2018-2021 Espressif Systems (Shanghai) CO LTD
+ * SPDX-FileCopyrightText: 2010 Christian Walter
  *
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ * SPDX-FileContributor: 2016-2021 Espressif Systems (Shanghai) CO LTD
  */
 /*
  * FreeModbus Libary: ESP32 Port Demo Application

components/freemodbus/port/porttimer_m.c

@@ -1,7 +1,9 @@
 /*
- * SPDX-FileCopyrightText: 2018-2021 Espressif Systems (Shanghai) CO LTD
+ * SPDX-FileCopyrightText: 2013 Armink
  *
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: LGPL-2.0-only
+ *
+ * SPDX-FileContributor: 2016-2021 Espressif Systems (Shanghai) CO LTD
  */
 /*
  * FreeModbus Libary: ESP32 Port Demo Application

components/freemodbus/serial_master/modbus_controller/mbc_serial_master.c

@@ -1,16 +1,7 @@
-/* Copyright 2018 Espressif Systems (Shanghai) PTE LTD
+/*
+ * SPDX-FileCopyrightText: 2016-2021 Espressif Systems (Shanghai) CO LTD
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
+ * SPDX-License-Identifier: Apache-2.0
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
  */
 
 // mbc_serial_master.c

components/freemodbus/serial_master/modbus_controller/mbc_serial_master.h

@@ -1,16 +1,7 @@
-/* Copyright 2018 Espressif Systems (Shanghai) PTE LTD
+/*
+ * SPDX-FileCopyrightText: 2016-2021 Espressif Systems (Shanghai) CO LTD
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
+ * SPDX-License-Identifier: Apache-2.0
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
  */
 
 //  mbc_serial_master.h Modbus controller serial master implementation header file

components/freemodbus/serial_master/port/port_serial_master.h

@@ -1,16 +1,9 @@
-/* Copyright 2018 Espressif Systems (Shanghai) PTE LTD
+/*
+ * SPDX-FileCopyrightText: 2010 Christian Walter
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
+ * SPDX-License-Identifier: BSD-3-Clause
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ * SPDX-FileContributor: 2016-2021 Espressif Systems (Shanghai) CO LTD
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
  */
 /*
  * FreeModbus Libary: ESP32 Port Demo Application

components/freemodbus/serial_slave/modbus_controller/mbc_serial_slave.c

@@ -1,18 +1,8 @@
-/* Copyright 2018 Espressif Systems (Shanghai) PTE LTD
+/*
+ * SPDX-FileCopyrightText: 2016-2021 Espressif Systems (Shanghai) CO LTD
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
+ * SPDX-License-Identifier: Apache-2.0
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
  */
-
 // mbc_serial_slave.c
 // Implementation of the Modbus controller serial slave
 

components/freemodbus/serial_slave/modbus_controller/mbc_serial_slave.h

@@ -1,16 +1,7 @@
-/* Copyright 2018 Espressif Systems (Shanghai) PTE LTD
+/*
+ * SPDX-FileCopyrightText: 2016-2021 Espressif Systems (Shanghai) CO LTD
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
+ * SPDX-License-Identifier: Apache-2.0
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
  */
 
 //  mbc_serial_slave.h Modbus controller serial slave implementation header file

components/freemodbus/serial_slave/port/port_serial_slave.h

@@ -1,16 +1,9 @@
-/* Copyright 2018 Espressif Systems (Shanghai) PTE LTD
+/*
+ * SPDX-FileCopyrightText: 2010 Christian Walter
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
+ * SPDX-License-Identifier: BSD-3-Clause
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ * SPDX-FileContributor: 2016-2021 Espressif Systems (Shanghai) CO LTD
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
  */
 /*
  * FreeModbus Libary: ESP32 Port Demo Application

components/freemodbus/tcp_master/modbus_controller/mbc_tcp_master.h

@@ -1,16 +1,7 @@
-/* Copyright 2018 Espressif Systems (Shanghai) PTE LTD
+/*
+ * SPDX-FileCopyrightText: 2016-2021 Espressif Systems (Shanghai) CO LTD
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
+ * SPDX-License-Identifier: Apache-2.0
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
  */
 
 //  mbc_tcp_master.h Modbus controller TCP master implementation header file

components/freemodbus/tcp_master/port/port_tcp_master.c

@@ -1,16 +1,9 @@
-/* Copyright 2018 Espressif Systems (Shanghai) PTE LTD
+/*
+ * SPDX-FileCopyrightText: 2006 Christian Walter
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
+ * SPDX-License-Identifier: LGPL-2.0-only
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ * SPDX-FileContributor: 2016-2021 Espressif Systems (Shanghai) CO LTD
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
  */
 /*
   * FreeModbus Libary: ESP32 TCP Port

components/freemodbus/tcp_master/port/port_tcp_master.h

@@ -1,16 +1,9 @@
- /* Copyright 2018 Espressif Systems (Shanghai) PTE LTD
+/*
+ * SPDX-FileCopyrightText: 2006 Christian Walter
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
+ * SPDX-License-Identifier: LGPL-2.0-only
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ * SPDX-FileContributor: 2016-2021 Espressif Systems (Shanghai) CO LTD
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
  */
  /*
   * FreeModbus Libary: ESP32 TCP Port

components/freemodbus/tcp_slave/modbus_controller/mbc_tcp_slave.c

@@ -1,16 +1,7 @@
-/* Copyright 2018 Espressif Systems (Shanghai) PTE LTD
+/*
+ * SPDX-FileCopyrightText: 2016-2021 Espressif Systems (Shanghai) CO LTD
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
+ * SPDX-License-Identifier: Apache-2.0
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
  */
 
 // mbc_tcp_slave.c

components/freemodbus/tcp_slave/modbus_controller/mbc_tcp_slave.h

@@ -1,16 +1,7 @@
-/* Copyright 2018 Espressif Systems (Shanghai) PTE LTD
+/*
+ * SPDX-FileCopyrightText: 2016-2021 Espressif Systems (Shanghai) CO LTD
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
+ * SPDX-License-Identifier: Apache-2.0
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
  */
 
 //  mbc_tcp_slave.h Modbus controller TCP slave implementation header file

components/freemodbus/tcp_slave/port/port_tcp_slave.c

@@ -1,16 +1,9 @@
-/* Copyright 2018 Espressif Systems (Shanghai) PTE LTD
+/*
+ * SPDX-FileCopyrightText: 2006 Christian Walter
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
+ * SPDX-License-Identifier: LGPL-2.0-only
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ * SPDX-FileContributor: 2016-2021 Espressif Systems (Shanghai) CO LTD
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
  */
 /*
   * FreeModbus Libary: ESP32 TCP Port

components/freemodbus/tcp_slave/port/port_tcp_slave.h

@@ -1,16 +1,9 @@
- /* Copyright 2018 Espressif Systems (Shanghai) PTE LTD
+/*
+ * SPDX-FileCopyrightText: 2006 Christian Walter
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
+ * SPDX-License-Identifier: LGPL-2.0-only
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ * SPDX-FileContributor: 2016-2021 Espressif Systems (Shanghai) CO LTD
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
  */
  /*
   * FreeModbus Libary: ESP32 TCP Port

examples/protocols/modbus/mb_example_common/modbus_params.c

@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2016-2021 Espressif Systems (Shanghai) CO LTD
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
 /*=====================================================================================
  * Description:
  *   C file to define parameter storage instances

examples/protocols/modbus/serial/example_test.py

@@ -1,3 +1,6 @@
+# SPDX-FileCopyrightText: 2016-2021 Espressif Systems (Shanghai) CO LTD
+# SPDX-License-Identifier: Apache-2.0
+
 # Need Python 3 string formatting functions
 from __future__ import print_function
 
@@ -283,6 +286,5 @@ if __name__ == '__main__':
     logger.addHandler(fh)
     logger.addHandler(ch)
     logger.info('Start script %s.' % os.path.basename(__file__))
-    print('Logging file name: %s' % logger.handlers[0].baseFilename)
     test_modbus_communication()
     logging.shutdown()

examples/protocols/modbus/serial/mb_master/main/master.c

@@ -1,16 +1,8 @@
-// Copyright 2016-2019 Espressif Systems (Shanghai) PTE LTD
+/*
-//
+ * SPDX-FileCopyrightText: 2016-2021 Espressif Systems (Shanghai) CO LTD
-// Licensed under the Apache License, Version 2.0 (the "License");
+ *
-// you may not use this file except in compliance with the License.
+ * SPDX-License-Identifier: Apache-2.0
-// You may obtain a copy of the License at
+ */
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
 
 #include "string.h"
 #include "esp_log.h"

examples/protocols/modbus/serial/mb_slave/main/slave.c

@@ -1,9 +1,11 @@
-/* FreeModbus Slave Example ESP32
+/*
-
+ * SPDX-FileCopyrightText: 2016-2021 Espressif Systems (Shanghai) CO LTD
-   Unless required by applicable law or agreed to in writing, this
+ *
-   software is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
+ * SPDX-License-Identifier: Apache-2.0
-   CONDITIONS OF ANY KIND, either express or implied.
  */
+
+// FreeModbus Slave Example ESP32
+
 #include <stdio.h>
 #include <stdint.h>
 #include "esp_err.h"

examples/protocols/modbus/tcp/example_test.py

@@ -1,3 +1,6 @@
+# SPDX-FileCopyrightText: 2016-2021 Espressif Systems (Shanghai) CO LTD
+# SPDX-License-Identifier: Apache-2.0
+
 import logging
 import os
 import re

examples/protocols/modbus/tcp/mb_tcp_master/main/tcp_master.c

@@ -1,16 +1,10 @@
-// Copyright 2016-2019 Espressif Systems (Shanghai) PTE LTD
+/*
-//
+ * SPDX-FileCopyrightText: 2016-2021 Espressif Systems (Shanghai) CO LTD
-// Licensed under the Apache License, Version 2.0 (the "License");
+ *
-// you may not use this file except in compliance with the License.
+ * SPDX-License-Identifier: Apache-2.0
-// You may obtain a copy of the License at
+ */
-//
+
-//     http://www.apache.org/licenses/LICENSE-2.0
+// FreeModbus Master Example ESP32
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
 
 #include "string.h"
 #include "esp_log.h"

examples/protocols/modbus/tcp/mb_tcp_slave/main/tcp_slave.c

@@ -1,9 +1,11 @@
-/* FreeModbus Slave Example ESP32
+/*
-
+ * SPDX-FileCopyrightText: 2016-2021 Espressif Systems (Shanghai) CO LTD
-   Unless required by applicable law or agreed to in writing, this
+ *
-   software is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
+ * SPDX-License-Identifier: Apache-2.0
-   CONDITIONS OF ANY KIND, either express or implied.
  */
+
+// FreeModbus Slave Example ESP32
+
 #include <stdio.h>
 #include "esp_err.h"
 #include "sdkconfig.h"