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Sound Open Firmware is an open source audio DSP firmware and SDK that provides audio firmware infrastructure and development tools for developers who are interested in audio or signal processing on modern DSPs

Github issues:

• https://github.com/thesofproject/sof/pull/1619
• https://github.com/thesofproject/sof/pull/3766#issuecomment-776756378

Code license: GPL-2.0 OR BSD-3-Clause

The project is considered successful if the code is accepted into SOF github tree.

Mentor: Daniel Baluta daniel.baluta@nxp.com

The goal is to be able to decode existing topology binaries and convert them into the new Topology 2.0 conf format

Code license: GPL-2.0 OR BSD-3-Clause

The project is considered successful if the code is accepted into SOF github tree.

Mentor: Ranjani Sridharan ranjani.sridharan@linux.intel.com

The general idea would be to have an ALSA device where playback stream would be looped back into a capture stream. This can be useful for echo reference or for audio decoding libraries that could offload the decoding part to the DSP.

Github issue: https://github.com/thesofproject/sof/issues/3818

Code license: GPL-2.0 OR BSD-3-Clause

The project is considered successful if the code is accepted into SOF github tree.

Mentor: Iuliana Prodan iuliana.prodan@nxp.com

Reuse sound/soc/sof/* and re-write the testbench to use ASoC topology parser.

Code license: GPL-2.0 OR BSD-3-Clause

The project is considered successful if the code is accepted into SOF github tree.

Mentor: Seppo Ingalsuo seppo.ingalsuo@intel.com

Add to testbench support for multiple streams (with multiple files I/O PCM, DAI).

Code license: GPL-2.0 OR BSD-3-Clause

The project is considered successful if the code is accepted into SOF github tree.

Mentor: Seppo Ingalsuo seppo.ingalsuo@intel.com

Add support for testing the mux/demux component in testbench.

Code license: GPL-2.0 OR BSD-3-Clause

The project is considered successful if the code is accepted into SOF github tree.

Mentor: Jaska Uimonen jaska.uimonen@intel.com

Have a look at:

• Sound Open Firmware introduction
• Sound Open Firmware docs
• Sound Open Firmware github

All the ideas below are just ways of exploring the project.

• Follow tutorial here Getting started in order to compile Linux kernel, SOF firmware, SOF topologies.

• Fork https://github.com/thesofproject/sof.git repo into your github account
• Follow instructions here Create a Pull Request and learn how to create a PR.
• Use checkpatch.pl to find small issues to fix
• e.g ./scripts/checkpatch.pl –no-tree –strict -f src/lib/alloc.c
• Keep in mind, a commit should fix only one type of error/warnings. If you need to fix multiple problems create multiple commits.
• Learn how to create a good commit message

Watch this Write and Submit your first Linux kernel Patch.

Before sending the patch to community please send it to daniel.baluta@nxp.com for review. Make sure you only look into drivers/staging directory.

• Qemu repo is at https://github.com/thesofproject/qemu/ we use branch sof-v4.2
• Build qemu by looking at Firmware . Look at chapter 'Build the Qemu DSP emulator from source.'
• Try to boot sof-imx8.ri SOF binary with qemu
  • Use the following command ./xtensa-softmmu/qemu-system-xtensa -cpu imx8 -M adsp_imx8 -nographic -kernel ../sof.git/build_imx8_gcc/src/arch/xtensa/sof-imx8.ri
• Look at Using the Qemu DSP emulator and try to run a full system with Linux kernel and SOF firmware.

• Mailing list: sound-open-firmware@alsa-project.org
• IRC: #sof on irc.freenode.net
• Gitter: https://gitter.im/thesofproject