zipm: initial working commit.

added also ping-pong sample

Signed-off-by: Felipe Neves <[email protected]>

Author: uLipe

.github/workflows/ci.yml

@@ -0,0 +1,29 @@
+# Copyright (c) 2024, Felipe Neves
+# SPDX-License-Identifier: Apache-2.0
+
+name: Build
+
+on: [push, pull_request]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    container: zephyrprojectrtos/ci:latest
+    env:
+      CMAKE_PREFIX_PATH: /opt/toolchains
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+        with:
+          submodules: recursive
+          path: zipm
+
+      - name: Setup Zephyr project
+        uses: zephyrproject-rtos/action-zephyr-setup@v1
+        with:
+          app-path: zipm
+          toolchains: arm-zephyr-eabi
+
+      # - name: Build
+      #   run: |
+      #     west build -palways -barduino_giga_r1/stm32h747xx/m7 samples/mf4005_shell

CMakeLists.txt

@@ -0,0 +1,17 @@
+# Copyright (c) 2024 Felipe Neves
+# SPDX-License-Identifier: Apache-2.0
+
+if(CONFIG_ZIPM)
+
+zephyr_interface_library_named(ZIPM)
+zephyr_include_directories(include)
+
+zephyr_library()
+zephyr_library_sources(src/zipm.c)
+zephyr_library_sources(src/zipm_node_pool.c)
+zephyr_library_sources(src/zipm_shared_queue.c)
+
+zephyr_library_link_libraries(ZIPM)
+target_link_libraries(ZIPM INTERFACE zephyr_interface)
+
+endif() # CONFIG_ZIPM

Kconfig

@@ -0,0 +1,7 @@
+# Copyright (c) 2024 Felipe Neves
+# SPDX-License-Identifier: Apache-2.0
+
+config ZIPM
+    bool "Enables Zephyr Inter-Processor Messaging"
+    help
+      Enables Zephyr Inter-Processor Messaging module

LICENSE

@@ -0,0 +1,202 @@
+
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+   1. Definitions.
+
+      "License" shall mean the terms and conditions for use, reproduction,
+      and distribution as defined by Sections 1 through 9 of this document.
+
+      "Licensor" shall mean the copyright owner or entity authorized by
+      the copyright owner that is granting the License.
+
+      "Legal Entity" shall mean the union of the acting entity and all
+      other entities that control, are controlled by, or are under common
+      control with that entity. For the purposes of this definition,
+      "control" means (i) the power, direct or indirect, to cause the
+      direction or management of such entity, whether by contract or
+      otherwise, or (ii) ownership of fifty percent (50%) or more of the
+      outstanding shares, or (iii) beneficial ownership of such entity.
+
+      "You" (or "Your") shall mean an individual or Legal Entity
+      exercising permissions granted by this License.
+
+      "Source" form shall mean the preferred form for making modifications,
+      including but not limited to software source code, documentation
+      source, and configuration files.
+
+      "Object" form shall mean any form resulting from mechanical
+      transformation or translation of a Source form, including but
+      not limited to compiled object code, generated documentation,
+      and conversions to other media types.
+
+      "Work" shall mean the work of authorship, whether in Source or
+      Object form, made available under the License, as indicated by a
+      copyright notice that is included in or attached to the work
+      (an example is provided in the Appendix below).
+
+      "Derivative Works" shall mean any work, whether in Source or Object
+      form, that is based on (or derived from) the Work and for which the
+      editorial revisions, annotations, elaborations, or other modifications
+      represent, as a whole, an original work of authorship. For the purposes
+      of this License, Derivative Works shall not include works that remain
+      separable from, or merely link (or bind by name) to the interfaces of,
+      the Work and Derivative Works thereof.
+
+      "Contribution" shall mean any work of authorship, including
+      the original version of the Work and any modifications or additions
+      to that Work or Derivative Works thereof, that is intentionally
+      submitted to Licensor for inclusion in the Work by the copyright owner
+      or by an individual or Legal Entity authorized to submit on behalf of
+      the copyright owner. For the purposes of this definition, "submitted"
+      means any form of electronic, verbal, or written communication sent
+      to the Licensor or its representatives, including but not limited to
+      communication on electronic mailing lists, source code control systems,
+      and issue tracking systems that are managed by, or on behalf of, the
+      Licensor for the purpose of discussing and improving the Work, but
+      excluding communication that is conspicuously marked or otherwise
+      designated in writing by the copyright owner as "Not a Contribution."
+
+      "Contributor" shall mean Licensor and any individual or Legal Entity
+      on behalf of whom a Contribution has been received by Licensor and
+      subsequently incorporated within the Work.
+
+   2. Grant of Copyright License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+      copyright license to reproduce, prepare Derivative Works of,
+      publicly display, publicly perform, sublicense, and distribute the
+      Work and such Derivative Works in Source or Object form.
+
+   3. Grant of Patent License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+      (except as stated in this section) patent license to make, have made,
+      use, offer to sell, sell, import, and otherwise transfer the Work,
+      where such license applies only to those patent claims licensable
+      by such Contributor that are necessarily infringed by their
+      Contribution(s) alone or by combination of their Contribution(s)
+      with the Work to which such Contribution(s) was submitted. If You
+      institute patent litigation against any entity (including a
+      cross-claim or counterclaim in a lawsuit) alleging that the Work
+      or a Contribution incorporated within the Work constitutes direct
+      or contributory patent infringement, then any patent licenses
+      granted to You under this License for that Work shall terminate
+      as of the date such litigation is filed.
+
+   4. Redistribution. You may reproduce and distribute copies of the
+      Work or Derivative Works thereof in any medium, with or without
+      modifications, and in Source or Object form, provided that You
+      meet the following conditions:
+
+      (a) You must give any other recipients of the Work or
+          Derivative Works a copy of this License; and
+
+      (b) You must cause any modified files to carry prominent notices
+          stating that You changed the files; and
+
+      (c) You must retain, in the Source form of any Derivative Works
+          that You distribute, all copyright, patent, trademark, and
+          attribution notices from the Source form of the Work,
+          excluding those notices that do not pertain to any part of
+          the Derivative Works; and
+
+      (d) If the Work includes a "NOTICE" text file as part of its
+          distribution, then any Derivative Works that You distribute must
+          include a readable copy of the attribution notices contained
+          within such NOTICE file, excluding those notices that do not
+          pertain to any part of the Derivative Works, in at least one
+          of the following places: within a NOTICE text file distributed
+          as part of the Derivative Works; within the Source form or
+          documentation, if provided along with the Derivative Works; or,
+          within a display generated by the Derivative Works, if and
+          wherever such third-party notices normally appear. The contents
+          of the NOTICE file are for informational purposes only and
+          do not modify the License. You may add Your own attribution
+          notices within Derivative Works that You distribute, alongside
+          or as an addendum to the NOTICE text from the Work, provided
+          that such additional attribution notices cannot be construed
+          as modifying the License.
+
+      You may add Your own copyright statement to Your modifications and
+      may provide additional or different license terms and conditions
+      for use, reproduction, or distribution of Your modifications, or
+      for any such Derivative Works as a whole, provided Your use,
+      reproduction, and distribution of the Work otherwise complies with
+      the conditions stated in this License.
+
+   5. Submission of Contributions. Unless You explicitly state otherwise,
+      any Contribution intentionally submitted for inclusion in the Work
+      by You to the Licensor shall be under the terms and conditions of
+      this License, without any additional terms or conditions.
+      Notwithstanding the above, nothing herein shall supersede or modify
+      the terms of any separate license agreement you may have executed
+      with Licensor regarding such Contributions.
+
+   6. Trademarks. This License does not grant permission to use the trade
+      names, trademarks, service marks, or product names of the Licensor,
+      except as required for reasonable and customary use in describing the
+      origin of the Work and reproducing the content of the NOTICE file.
+
+   7. Disclaimer of Warranty. Unless required by applicable law or
+      agreed to in writing, Licensor provides the Work (and each
+      Contributor provides its Contributions) on an "AS IS" BASIS,
+      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+      implied, including, without limitation, any warranties or conditions
+      of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
+      PARTICULAR PURPOSE. You are solely responsible for determining the
+      appropriateness of using or redistributing the Work and assume any
+      risks associated with Your exercise of permissions under this License.
+
+   8. Limitation of Liability. In no event and under no legal theory,
+      whether in tort (including negligence), contract, or otherwise,
+      unless required by applicable law (such as deliberate and grossly
+      negligent acts) or agreed to in writing, shall any Contributor be
+      liable to You for damages, including any direct, indirect, special,
+      incidental, or consequential damages of any character arising as a
+      result of this License or out of the use or inability to use the
+      Work (including but not limited to damages for loss of goodwill,
+      work stoppage, computer failure or malfunction, or any and all
+      other commercial damages or losses), even if such Contributor
+      has been advised of the possibility of such damages.
+
+   9. Accepting Warranty or Additional Liability. While redistributing
+      the Work or Derivative Works thereof, You may choose to offer,
+      and charge a fee for, acceptance of support, warranty, indemnity,
+      or other liability obligations and/or rights consistent with this
+      License. However, in accepting such obligations, You may act only
+      on Your own behalf and on Your sole responsibility, not on behalf
+      of any other Contributor, and only if You agree to indemnify,
+      defend, and hold each Contributor harmless for any liability
+      incurred by, or claims asserted against, such Contributor by reason
+      of your accepting any such warranty or additional liability.
+
+   END OF TERMS AND CONDITIONS
+
+   APPENDIX: How to apply the Apache License to your work.
+
+      To apply the Apache License to your work, attach the following
+      boilerplate notice, with the fields enclosed by brackets "[]"
+      replaced with your own identifying information. (Don't include
+      the brackets!)  The text should be enclosed in the appropriate
+      comment syntax for the file format. We also recommend that a
+      file or class name and description of purpose be included on the
+      same "printed page" as the copyright notice for easier
+      identification within third-party archives.
+
+   Copyright [yyyy] [name of copyright owner]
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   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.

README.rst

@@ -0,0 +1,49 @@
+.. _zephyr_inter_processor_message:
+
+ZIPM, a Zephyr RTOS friendly inter processor messaging module
+#############################################################
+
+
+Adding ZIPM to your project via ``west``
+****************************************
+
+The recommended way is to use ``west`` to initialize this repository directly and
+all its dependencies:
+
+.. code-block:: console
+
+   $ west init -m https://github.com/uLipe/zipm 
+   $ west update
+
+Alternatively you can add a local copy of this module by adding the following sections
+to ``zephyr/west.yml``:
+
+1. In the ``manifest/remotes`` section add:
+
+.. code-block::
+
+   remotes:
+     - name: uLipe
+       url-base: https://github.com/uLipe
+
+2. In the ``manifest/projects`` section add:
+
+.. code-block::
+
+   - name: zipm
+     remote: uLipe
+     path: modules/lib/zipm
+     revision: main
+
+3. Save the file, and run ``west update`` from the project root to retrieve the
+latest version of the library from Github, or whatever ``revision`` was
+
+Getting started with ZIPM
+*************************
+Please refer the ``samples`` folder inside of this module to see some basic use
+cases of ZIPM, they were built for usage without hardware for quick getting started.
+
+Get in touch!
+*************
+If you have some questions, wants to contribute please contact me at:
+[email protected]

dts/bindings/zipm-message-device.yaml

@@ -0,0 +1,67 @@
+# Copyright (c) 2024 Felipe Neves
+# SPDX-License-Identifier: Apache-2.0
+
+description: |
+  Zephyr Inter Processor Message device descriptor. Example usage:
+
+    &shared_ram {
+
+      #address-cells = <1>;
+      #size-cells = <0>;
+
+      zipm_device: zipm_device {
+        compatible = "zipm,message-device";
+        status = "okay";
+        node-pool = <&zipm_pool>;
+        shared-queues = <&zipm_tx_queue &zipm_rx_queue>;
+        ipc = <&ipm0>;
+        should-init = <true>;
+      };
+
+      zipm_pool: zipm_pool@0 {
+        compatible = "zipm,node-pool";
+        block-size = <32>;
+        nodes-quantity = <16>;
+        reg = <0x0>;
+      };
+
+      zipm_tx_queue: zipm_tx_queue@800 {
+        compatible = "zipm,shared-queue";
+        reg = <0x800>;
+       };
+
+      zipm_rx_queue: zipm_rx_queue@c00 {
+        compatible = "zipm,shared-queue";
+        reg = <0xc00>;
+      };
+
+    };
+
+compatible: "zipm,message-device"
+
+properties:
+  node-pool:
+    required: true
+    type: phandle
+    description: |
+      node pool object reference
+  
+  shared-queues:
+    required: true
+    type: phandles
+    description: |
+      one or more shared queues reference
+
+  ipc:
+    required: true
+    type: phandle
+    description: |
+      reference to the cross-core device node
+  
+  should-init:
+    type: boolean
+    description: |
+      if present this zipm device should also
+      initialize the shared memory area.
+
+include: [base.yaml]