LICENSE: Complete and clarify

This file provides licensing information on the code provided in this repository.

Two licenses are in use in this repository: Apache-2.0 and BSD-3-Clause.

Three licenses are in use in this repository: Apache-2.0, BSD-3-Clause and ST SLA0044.

They are applied according to the following scheme:

- All files imported from official STM32Cube repositories are subject to their

  original license: BSD-3-Clause

- All files imported from STM32Cube packages are subject to their original

  license: BSD-3-Clause. This covers following folders:

                - stm32cube/stm32*

                - lib/*

- All files in dts/ folder are subject to usual Zephyr project license: Apache-2.0

- Binary blobs explicitly fetched by the user with command `west blobs fetch stm32`

  and stored under zephyr/blobs/stm32wba/lib are subject to ST proprietary

  License SLA0044.

- All other files, which are put in place for adaptation to Zephyr RTOS

  (CMakeLists.txt, ...) or available as utilities (scripts/) are subject to

  usual Zephyr project license: Apache-2.0

- Files missing explicit license information fall under the Apache-2.0

For these two licenses, full length texts are available hereafter:

For these three licenses, full length texts are available hereafter:

                             BSD 3-Clause License

   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.

                  SLA0044 Rev5/February 2018

                 ## Software license agreement

        ### __ULTIMATE LIBERTY SOFTWARE LICENSE AGREEMENT__

BY INSTALLING, COPYING, DOWNLOADING, ACCESSING OR OTHERWISE USING THIS SOFTWARE

OR ANY PART THEREOF (AND THE RELATED DOCUMENTATION) FROM STMICROELECTRONICS

INTERNATIONAL N.V, SWISS BRANCH AND/OR ITS AFFILIATED COMPANIES

(STMICROELECTRONICS), THE RECIPIENT, ON BEHALF OF HIMSELF OR HERSELF, OR ON

BEHALF OF ANY ENTITY BY WHICH SUCH RECIPIENT IS EMPLOYED AND/OR ENGAGED AGREES

TO BE BOUND BY THIS SOFTWARE LICENSE AGREEMENT.

Under STMicroelectronics’ intellectual property rights, the redistribution,

reproduction and use in source and binary forms of the software or any part

thereof, with or without modification, are permitted provided that the following

conditions are met:

1. Redistribution of source code (modified or not) must retain any copyright

notice, this list of conditions and the disclaimer set forth below as items 10

and 11.

2. Redistributions in binary form, except as embedded into microcontroller or

microprocessor device manufactured by or for STMicroelectronics or a software

update for such device, must reproduce any copyright notice provided with the

binary code, this list of conditions, and the disclaimer set forth below as

items 10 and 11, in documentation and/or other materials provided with the

distribution.

3. Neither the name of STMicroelectronics nor the names of other contributors to

this software may be used to endorse or promote products derived from this

software or part thereof without specific written permission.

4. This software or any part thereof, including modifications and/or derivative

works of this software, must be used and execute solely and exclusively on or in

combination with a microcontroller or microprocessor device manufactured by or

for STMicroelectronics.

5. No use, reproduction or redistribution of this software partially or totally

may be done in any manner that would subject this software to any Open Source

Terms. “Open Source Terms” shall mean any open source license which requires as

part of distribution of software that the source code of such software is

distributed therewith or otherwise made available, or open source license that

substantially complies with the Open Source definition specified at

www.opensource.org and any other comparable open source license such as for

example GNU General Public License (GPL), Eclipse Public License (EPL), Apache

Software License, BSD license or MIT license.

6. STMicroelectronics has no obligation to provide any maintenance, support or

updates for the software.

7. The software is and will remain the exclusive property of STMicroelectronics

and its licensors. The recipient will not take any action that jeopardizes

STMicroelectronics and its licensors' proprietary rights or acquire any rights

in the software, except the limited rights specified hereunder.

8. The recipient shall comply with all applicable laws and regulations affecting

the use of the software or any part thereof including any applicable export

control law or regulation.

9. Redistribution and use of this software or any part thereof other than as

permitted under this license is void and will automatically terminate your

rights under this license.

10. THIS SOFTWARE IS PROVIDED BY STMICROELECTRONICS AND CONTRIBUTORS "AS IS" AND

ANY EXPRESS, IMPLIED OR STATUTORY WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND

NON-INFRINGEMENT OF THIRD PARTY INTELLECTUAL PROPERTY RIGHTS, WHICH ARE

DISCLAIMED TO THE FULLEST EXTENT PERMITTED BY LAW. IN NO EVENT SHALL

STMICROELECTRONICS OR CONTRIBUTORS 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.

11. EXCEPT AS EXPRESSLY PERMITTED HEREUNDER, NO LICENSE OR OTHER RIGHTS, WHETHER

EXPRESS OR IMPLIED, ARE GRANTED UNDER ANY PATENT OR OTHER INTELLECTUAL PROPERTY

RIGHTS OF STMICROELECTRONICS OR ANY THIRD PARTY.