April 2019 - Sound-open-firmware - mailman.alsa-project.org

[Sound-open-firmware] [PATCH v6 00/14] ASoC: Sound Open Firmware (SOF) core
by Pierre-Louis Bossart 27 Apr '19

27 Apr '19

Sound Open Firmware (SOF) is a host and DSP architecture agnostic audio DSP firmware. SOF is not tied to any specific host architecture or any specific physical IO communication type (it will work with on SoC DSPs, or DSP connected via SPI/I2C). SOF is also not coupled to any particular DSP architecture and has abstraction similar to Linux to allow porting to other DSP architectures. https://www.sofproject.org/ This patch series introduces the SOF core and utilities. Support for Intel devices is provided as a follow-up series. The SOF core manages all the core DSP services and ALSA/ASoC IO. The core is responsible for loading firmware, parsing topology, exposing PCMs and kcontrols, providing debug and trace mechanisms and performing IPC between host and DSP. The SOF core also has logic to allow reuse of existing machine drivers for other platforms/machines without any code modification. i.e. DAI links can be modified at runtime to bind with SOF and SOF topologies instead of existing hard coded DAI links and topology. Changes since v5: In addition to addressing feedback from Takashi, the major change in this series is the IPC rework. We reverted some optimizations to help Daniel Baluta @ NXP submit support for i.MX platforms, additional IPC core refactorization will start once we have two platforms supported on github. Hopefully by then the code will be accepted in the ASoC tree and we can submit delta patches, hint hint wink wink. All feedback from Takashi addressed: Tabify/align Kconfigs Remove INFO_RESUME flag Add const char* for core prototypes Fix snd_sof_get_status return value Use smd_pcm_format_physical_width() Fix hw_constraints and BUFFER_BYTES/SIZE confusion Remove useless fallthrough statements Fix typos and duplicate words in comments and commit messages Remove unnecessary casts, use container_of Remove superfluous initializations Fix potential race condition in debugfs Check for wrap-arounds in loader Fix alignment in debugfs read Don't use devm_kasprintf for firmware name string. Other updates: Major refactor of IPC handling (support for large messages, code optimization, better abstraction to push Intel-specific code out of the core). Regenerate compressed page table only if needed Support for multiple DAI hw_config (from <dragos_tarcatu(a)mentor.com>) Use iopoll macros (with small change due to indirection) Fix PM refcount handling on errors Rename/unify all definitions for effects (now 'process') Added basic support for keyword/hotword detection and binding widgets with external events Fix release of topology resources Support new IPC_PANIC message Clean-up mandatory/optional callbacks, simplify wrappers Add topology ABI check Fix acpi/machine driver handling Fix memory leak in debugfs error handling Alignment with firmware header files Fixed topology endianness issues Changes since v4: feedback from Mark: Removed need for private field in soc_runtime Completely reworked IPC, now much simpler and robust. IPC refactoring work will continue to e.g. allow for different types of IPC hardware and a better split between core and platform-specific drivers. Feedback from Takashi: Clarified endianness and alignment issues for page tables Removed useless mutexes Removed unneeded initializations, return types and wrappers Use snd_mask_set_format() Trace code flow optimization Removed checks on preallocate_pages() Test status of open/close functions. Released reference when pm_runtime_get_sync fails Fixed multiple memory allocation issues Fixed static analysis warnings Fixed error checks with copy_to_user() Added support for multi-core DSPs Fixed leaked references with firmware handling on resume Multiple topology fixes/improvements (enum/switch, mux, removal of duplicate connections, widget power not reported as ON) Code simplifications (removed set-but-unused, typecasts, etc). Changes since v3: Addressed dozens ofcomments from Takashi Iwai, Mark Brown, Andy Shevchenko, Daniel Baluta (Thanks!) Hardened memory allocation, fixed module load/unload oops or errors (now at hundreds of cycles on ApolloLake devices) Fixed suspend/resume and removed use of suspend_late, now using snd_soc_pm_ops and standard flow Fixed topology free (multiple patches already contributed for ASoC-core) Fixed debugfs/pm_runtime interaction Removed error checks on debugfs, changed to EXPORT_SYMBOL_GPL Added filenames in debug messages, ues hex_dump_to_buffer Removed "sof-audio" platform device and added better error checks on probe Reworked data structures to remove mix of const/variable fields and duplication of pointers for platform-specific changes Removed redundant ops tables Fixed trace/logger issues Fixed issues with loader (alignment and block size errors) Fixed release_firmware handling (was all over the place) Simplified PCI handling Added comments on non-atomic triggers Removed enum controls (not supported in topology) Simplified include file dependencies Fix cppcheck warnings Fixed Kconfigs to deal with Kbuild warnings on exotic architectures Precisions: The code in this patchset is directly squashed from the SOF development branch [1], which tracks Mark Brown's for-next branch on a weekly basis and the configurations used for testing are based on the defconfigs at [2]. The patches are also used backported for Chromebook devices. Full disclosure on known limitation and issues (full list at [3]) a) the interaction with ASoC is not always perfect, there are a couple of points where a better solution is desired (use of private data, support for link DMA, etc). The known points are explicitly documented in the code and will be updated. To be clearer, it's our belief that SOF does not cripple ASoC in any way, and that merging this SOF core does not harm others. It's just complicated to get things right, especially on a couple of cases where the topology and DPCM frameworks generate complex flows that very few people understand. b) The get/put methods for controls generate an IPC and possibly a wake-up. This is not optimal and is being fixed. c) runtime_pm is being hardened and the use of SMART_SUSPEND was suggested. Thank you for reviews and comments, we appreciate the time spent commenting on this large patchset. Thanks in particular to Alan Cox and Andy Shevchenko for their comments on an earlier version. This patchset also includes contributions from Daniel Baluta for loading code on non-Intel platforms. Pierre [1] https://github.com/thesofproject/linux [2] https://github.com/thesofproject/kconfig [3] https://github.com/thesofproject/linux/issues Liam Girdwood (12): ASoC: SOF: Add Sound Open Firmware driver core ASoC: SOF: Add Sound Open Firmware KControl support ASoC: SOF: Add driver debug support. ASoC: SOF: Add support for IPC IO between DSP and Host ASoC: SOF: Add PCM operations support ASoC: SOF: Add support for loading topologies ASoC: SOF: Add DSP firmware logger support ASoC: SOF: Add DSP HW abstraction operations ASoC: SOF: Add firmware loader support ASoC: SOF: Add userspace ABI support ASoC: SOF: Add PM support ASoC: SOF: Add Nocodec machine driver support Pierre-Louis Bossart (2): ASoC: SOF: Add xtensa support ASoC: SOF: Add utils include/sound/sof.h | 100 + include/sound/sof/control.h | 158 ++ include/sound/sof/dai-intel.h | 178 ++ include/sound/sof/dai.h | 75 + include/sound/sof/header.h | 158 ++ include/sound/sof/info.h | 118 ++ include/sound/sof/pm.h | 48 + include/sound/sof/stream.h | 148 ++ include/sound/sof/topology.h | 256 +++ include/sound/sof/trace.h | 67 + include/sound/sof/xtensa.h | 44 + include/uapi/sound/sof/abi.h | 62 + include/uapi/sound/sof/eq.h | 172 ++ include/uapi/sound/sof/fw.h | 78 + include/uapi/sound/sof/header.h | 27 + include/uapi/sound/sof/manifest.h | 188 ++ include/uapi/sound/sof/tokens.h | 107 + include/uapi/sound/sof/tone.h | 21 + include/uapi/sound/sof/trace.h | 66 + sound/soc/sof/control.c | 552 +++++ sound/soc/sof/core.c | 506 +++++ sound/soc/sof/debug.c | 232 +++ sound/soc/sof/ipc.c | 832 ++++++++ sound/soc/sof/loader.c | 400 ++++ sound/soc/sof/nocodec.c | 109 + sound/soc/sof/ops.c | 163 ++ sound/soc/sof/ops.h | 399 ++++ sound/soc/sof/pcm.c | 719 +++++++ sound/soc/sof/pm.c | 385 ++++ sound/soc/sof/sof-priv.h | 632 ++++++ sound/soc/sof/topology.c | 3164 +++++++++++++++++++++++++++++ sound/soc/sof/trace.c | 297 +++ sound/soc/sof/utils.c | 112 + sound/soc/sof/xtensa/Kconfig | 2 + sound/soc/sof/xtensa/Makefile | 5 + sound/soc/sof/xtensa/core.c | 138 ++ 36 files changed, 10718 insertions(+) create mode 100644 include/sound/sof.h create mode 100644 include/sound/sof/control.h create mode 100644 include/sound/sof/dai-intel.h create mode 100644 include/sound/sof/dai.h create mode 100644 include/sound/sof/header.h create mode 100644 include/sound/sof/info.h create mode 100644 include/sound/sof/pm.h create mode 100644 include/sound/sof/stream.h create mode 100644 include/sound/sof/topology.h create mode 100644 include/sound/sof/trace.h create mode 100644 include/sound/sof/xtensa.h create mode 100644 include/uapi/sound/sof/abi.h create mode 100644 include/uapi/sound/sof/eq.h create mode 100644 include/uapi/sound/sof/fw.h create mode 100644 include/uapi/sound/sof/header.h create mode 100644 include/uapi/sound/sof/manifest.h create mode 100644 include/uapi/sound/sof/tokens.h create mode 100644 include/uapi/sound/sof/tone.h create mode 100644 include/uapi/sound/sof/trace.h create mode 100644 sound/soc/sof/control.c create mode 100644 sound/soc/sof/core.c create mode 100644 sound/soc/sof/debug.c create mode 100644 sound/soc/sof/ipc.c create mode 100644 sound/soc/sof/loader.c create mode 100644 sound/soc/sof/nocodec.c create mode 100644 sound/soc/sof/ops.c create mode 100644 sound/soc/sof/ops.h create mode 100644 sound/soc/sof/pcm.c create mode 100644 sound/soc/sof/pm.c create mode 100644 sound/soc/sof/sof-priv.h create mode 100644 sound/soc/sof/topology.c create mode 100644 sound/soc/sof/trace.c create mode 100644 sound/soc/sof/utils.c create mode 100644 sound/soc/sof/xtensa/Kconfig create mode 100644 sound/soc/sof/xtensa/Makefile create mode 100644 sound/soc/sof/xtensa/core.c base-commit: 5f2ab35fe853f4886da490de8bc47637f5fc2921 -- 2.17.1

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[Sound-open-firmware] [PATCH v5 00/21] ASoC: Sound Open Firmware (SOF) - Intel support
by Pierre-Louis Bossart 27 Apr '19

27 Apr '19

This patch series introduces the support for Intel devices (Baytrail, CherryTrail, Broadwell, ApolloLake, GeminiLake, CannonLake, IceLake). Support for Haswell, Skylake and KabyLake is incomplete at the moment and is not shared for now. The series starts with the 'legacy' devices, then all the more recent ones and concludes with ACPI/PCI hooks. SKL+ platforms can be compiled without HDaudio link/codec support, in which case the hdac library is not used. When support for HDMI or HDaudio codecs is selected, parts of this library are used. A small set of machine drivers supported by SOF is now provided as part of this series, more to follow. Support for SPI-based devices, compressed streams is also not provided for now since it's not ready for upstream just yet. Thank you for reviews and comments, we appreciate the time spent commenting on this large patchset. Thanks in particular to Alan Cox and Andy Shevchenko for their comments on an earlier version. Changes since v4: Feedback from Andy: Rename EDISON as MERRIFIELD, byt_pci_probe as tng_pci_probe Feedback from Takashi: Remove superfluous initializations and casts Tabify Kconfigs Fix dependency on SND_DMA_SGBUFF Other updates: Major IPC rework (Intel-specific parts moved out of the core) Fix NOCODEC/HDA compatibility Fix period bytes calculation Fix CTX_SAVE handling (do not read mailbox which can be powered off) Fix ROM message handling Drop unexpected IPC replies Add prepare for BE dailink Fix typos in comments Changes since v3: Removed Haswell, Skylake and Kabylake support (code is not tested or is still under development). These devices will be re-added when there is functional firmware and for Skylake/Kabylake a signed version of the firmware usable on existing platforms. Added support for existing machine drivers when relevant (more machine drivers will be added in next batch) Fixed hardware programming sequences (ROM init timeout, HDaudio capture, simultaneous capture and playback, DMA preload) Avoid reading IPC reply on CTX_SAVE reply since memory windows might be powered off. Simplified NOCODEC support, now mutually exclusive with HDaudio link to avoid suspend/resume issues. Changes since v2: Addressed dozens of comments from Takashi Iwai, Mark Brown, Andy Shevchenko, Daniel Baluta (Thanks!) Transition to new display power management Fixed suspend issues Optimized register polling, better handling of timeouts and firmware download retries Detect number of HDaudio codec and select machine driver accordingly Added workqueue based probe for HDaudio (dependency on modules) Fixed platform name override and conflicts with DT deferred probe changes Added prefix for firmware and topology files and module arguments Split Baytrail and Edison Fixed warnings (smatch, cppcheck) Guennadi Liakhovetski (1): ASoC: SOF: Intel: Add legacy IPC support Keyon Jie (2): ASoC: SOF: Intel: Add hda-bus support and initialization ASoC: SOF: Intel: add SKL+ platform DAIs Liam Girdwood (15): ASoC: SOF: Intel: Add BYT, CHT and BSW DSP HW support. ASoC: SOF: Intel: Add BDW HW DSP support ASoC: SOF: Intel: Add APL/CNL HW DSP support ASoC: SOF: Intel: Add HDA controller for Intel DSP ASoC: SOF: Intel: Add Intel specific HDA DSP HW operations ASoC: SOF: Intel: Add Intel specific HDA IPC mechanisms. ASoC: SOF: Intel: Add Intel specific HDA firmware loader ASoC: SOF: Intel: Add Intel specific HDA PCM operations ASoC: SOF: Intel: Add Intel specific HDA stream operations ASoC: SOF: Intel: Add Intel specific HDA trace operations ASoC: SOF: Intel: Add platform differentiation for APL and CNL ASoC: SOF: Add ACPI device support ASoC: SOF: Add PCI device support ASoC: SOF: Add Build support for SOF core and Intel drivers ASoC: Intel: Make sure BDW based machine drivers build for SOF Pierre-Louis Bossart (3): ASoC: SOF: Intel: Add support for HDAudio codecs ASoC: Intel: Kconfig: expose common option between SST and SOF drivers ASoC: Intel: select relevant machine drivers for SOF sound/soc/Kconfig | 1 + sound/soc/Makefile | 1 + sound/soc/intel/Kconfig | 7 +- sound/soc/intel/boards/Kconfig | 22 +- sound/soc/intel/boards/bdw-rt5677.c | 4 + sound/soc/intel/boards/broadwell.c | 4 + sound/soc/sof/Kconfig | 141 +++++ sound/soc/sof/Makefile | 18 + sound/soc/sof/intel/Kconfig | 230 ++++++++ sound/soc/sof/intel/Makefile | 19 + sound/soc/sof/intel/apl.c | 109 ++++ sound/soc/sof/intel/bdw.c | 713 +++++++++++++++++++++++ sound/soc/sof/intel/byt.c | 874 ++++++++++++++++++++++++++++ sound/soc/sof/intel/cnl.c | 249 ++++++++ sound/soc/sof/intel/hda-bus.c | 108 ++++ sound/soc/sof/intel/hda-codec.c | 171 ++++++ sound/soc/sof/intel/hda-ctrl.c | 181 ++++++ sound/soc/sof/intel/hda-dai.c | 351 +++++++++++ sound/soc/sof/intel/hda-dsp.c | 455 +++++++++++++++ sound/soc/sof/intel/hda-ipc.c | 458 +++++++++++++++ sound/soc/sof/intel/hda-loader.c | 371 ++++++++++++ sound/soc/sof/intel/hda-pcm.c | 240 ++++++++ sound/soc/sof/intel/hda-stream.c | 692 ++++++++++++++++++++++ sound/soc/sof/intel/hda-trace.c | 94 +++ sound/soc/sof/intel/hda.c | 671 +++++++++++++++++++++ sound/soc/sof/intel/hda.h | 560 ++++++++++++++++++ sound/soc/sof/intel/intel-ipc.c | 92 +++ sound/soc/sof/intel/shim.h | 183 ++++++ sound/soc/sof/sof-acpi-dev.c | 312 ++++++++++ sound/soc/sof/sof-pci-dev.c | 373 ++++++++++++ 30 files changed, 7696 insertions(+), 8 deletions(-) create mode 100644 sound/soc/sof/Kconfig create mode 100644 sound/soc/sof/Makefile create mode 100644 sound/soc/sof/intel/Kconfig create mode 100644 sound/soc/sof/intel/Makefile create mode 100644 sound/soc/sof/intel/apl.c create mode 100644 sound/soc/sof/intel/bdw.c create mode 100644 sound/soc/sof/intel/byt.c create mode 100644 sound/soc/sof/intel/cnl.c create mode 100644 sound/soc/sof/intel/hda-bus.c create mode 100644 sound/soc/sof/intel/hda-codec.c create mode 100644 sound/soc/sof/intel/hda-ctrl.c create mode 100644 sound/soc/sof/intel/hda-dai.c create mode 100644 sound/soc/sof/intel/hda-dsp.c create mode 100644 sound/soc/sof/intel/hda-ipc.c create mode 100644 sound/soc/sof/intel/hda-loader.c create mode 100644 sound/soc/sof/intel/hda-pcm.c create mode 100644 sound/soc/sof/intel/hda-stream.c create mode 100644 sound/soc/sof/intel/hda-trace.c create mode 100644 sound/soc/sof/intel/hda.c create mode 100644 sound/soc/sof/intel/hda.h create mode 100644 sound/soc/sof/intel/intel-ipc.c create mode 100644 sound/soc/sof/intel/shim.h create mode 100644 sound/soc/sof/sof-acpi-dev.c create mode 100644 sound/soc/sof/sof-pci-dev.c -- 2.17.1

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[Sound-open-firmware] About Audio processing using SOF
by Salma 23 Apr '19

23 Apr '19

Hi Sound Open Firmware community, I'm trying to implement audio processing on DSP's target using SOF. I set up SOF on my UP Squared board and I wanted to ask if there are some audio processing examples available I could test. Best regards, Salma Raiss

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Re: [Sound-open-firmware] [alsa-devel] [PATCH v6 03/14] ASoC: SOF: Add driver debug support.
by Pierre-Louis Bossart 19 Apr '19

19 Apr '19

Thanks for the review Mark On 4/19/19 10:54 AM, Mark Brown wrote: > On Fri, Apr 12, 2019 at 11:05:08AM -0500, Pierre-Louis Bossart wrote: > >> + if (pm_runtime_active(sdev->dev) || >> + dfse->access_type == SOF_DEBUGFS_ACCESS_ALWAYS) { >> + memcpy_fromio(buf, dfse->io_mem + pos, size); >> + } else { >> + dev_info(sdev->dev, >> + "Copying cached debugfs data\n"); >> + memcpy(buf, dfse->cache_buf + pos, size); >> + } > > Might this get a bit noisy if we start hitting the info case? Indeed, I recall we discussed removing this log but it's still there. We can fix this with a follow-up patch or in a v7 depending if there are other comments.

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[Sound-open-firmware] DSP VM to x86 VM communication in QEMU
by Fletcher Woodruff 17 Apr '19

17 Apr '19

I'm looking into implementing a feature to allow mapping shared memory in a VM host into a guest for audio playback. I've seen there's some related work in SoF's qemu repo for communicating between an x86 VM and a DSP VM, and I was wondering if anyone had more context/documentation on those features? Thanks, Fletcher

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[Sound-open-firmware] RFC patches to change debugfs trace behaviour
by Kai Vehmanen 10 Apr '19

10 Apr '19

Hi all, here goes first post to this list -- nice to be back working with open-source audio projects! :) I've been looking at the SOF debugfs trace implementation a bit. I've made a few small fixes, but it would seem there are some limitations in how it works now. The FW is filling the 64K trace buffer at its own pace (e.g. not stopping for overrun). With current implementation, the write offset is also reset on suspend/resume cycles. For the trace client (e.g. sof-logger), the interface has issues if the client is not run all the time. It has no way to detect overruns nor to discover where the FW is writing. But OTOH, if the trace client is run all the time (which is the expected usage model for debug), it is ok. I have a RFC patchset in github that fixes one common gap -- e.g. trace continuity over suspend/resume cycles: [RFC] ASoC: sof: force end-of-file for debugfs trace at suspend https://github.com/thesofproject/linux/pull/781 ... but this does make the SOF trace interface further specialized. Specifically my patchset forces the trace client to reopen the debugfs node by emitting EOF when FW suspends. I have a matching patch to sof-logger [1] that handles this without bothering the user. Doing 'cat /sys/kernel/debug/sof/trace' is not broken and still wworks still, but runtime PM the tracing ends frequently and you need at least some scripting to re-run cat, or use 'sof-logger -t'. So with that long introduction, I'm seeking your input whether this an ok approach to take and/or does this break some existing workflows to consume the traces? [1] https://github.com/thesofproject/sof/pull/1221 Br, Kai

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[Sound-open-firmware] [PATCH v5 00/14] ASoC: Sound Open Firmware (SOF) core
by Pierre-Louis Bossart 09 Apr '19

09 Apr '19

Sound Open Firmware (SOF) is a host and DSP architecture agnostic audio DSP firmware. SOF is not tied to any specific host architecture or any specific physical IO communication type (it will work with on SoC DSPs, or DSP connected via SPI/I2C). SOF is also not coupled to any particular DSP architecture and has abstraction similar to Linux to allow porting to other DSP architectures. https://www.sofproject.org/ This patch series introduces the SOF core and utilities. Support for Intel devices is provided as a follow-up series. The SOF core manages all the core DSP services and ALSA/ASoC IO. The core is responsible for loading firmware, parsing topology, exposing PCMs and kcontrols, providing debug and trace mechanisms and performing IPC between host and DSP. The SOF core also has logic to allow reuse of existing machine drivers for other platforms/machines without any code modification. i.e. DAI links can be modified at runtime to bind with SOF and SOF topologies instead of existing hard coded DAI links and topology. Future patches will simplify the IPC interface to allow e.g. for the use of RPMsg or mailboxes on other hardware, the changes are not included just yet. This patchset is dependent on 3 patches already shared on alsa-devel but not yet merged: ASoC: topology: Align tplg pointer increment across all kcontrols ASoC: core: support driver alias names for FE topology overrides ASoC: dapm: set power_check callback for widgets that shouldnt be always on Changes since v4: feedback from Mark: Removed need for private field in soc_runtime Completely reworked IPC, now much simpler and robust. IPC refactoring work will continue to e.g. allow for different types of IPC hardware and a better split between core and platform-specific drivers. Feedback from Takashi: Clarified endianness and alignment issues for page tables Removed useless mutexes Removed unneeded initializations, return types and wrappers Use snd_mask_set_format() Trace code flow optimization Removed checks on preallocate_pages() Test status of open/close functions. Released reference when pm_runtime_get_sync fails Fixed multiple memory allocation issues Fixed static analysis warnings Fixed error checks with copy_to_user() Added support for multi-core DSPs Fixed leaked references with firmware handling on resume Multiple topology fixes/improvements (enum/switch, mux, removal of duplicate connections, widget power not reported as ON) Code simplifications (removed set-but-unused, typecasts, etc). Changes since v3: Addressed dozens ofcomments from Takashi Iwai, Mark Brown, Andy Shevchenko, Daniel Baluta (Thanks!) Hardened memory allocation, fixed module load/unload oops or errors (now at hundreds of cycles on ApolloLake devices) Fixed suspend/resume and removed use of suspend_late, now using snd_soc_pm_ops and standard flow Fixed topology free (multiple patches already contributed for ASoC-core) Fixed debugfs/pm_runtime interaction Removed error checks on debugfs, changed to EXPORT_SYMBOL_GPL Added filenames in debug messages, ues hex_dump_to_buffer Removed "sof-audio" platform device and added better error checks on probe Reworked data structures to remove mix of const/variable fields and duplication of pointers for platform-specific changes Removed redundant ops tables Fixed trace/logger issues Fixed issues with loader (alignment and block size errors) Fixed release_firmware handling (was all over the place) Simplified PCI handling Added comments on non-atomic triggers Removed enum controls (not supported in topology) Simplified include file dependencies Fix cppcheck warnings Fixed Kconfigs to deal with Kbuild warnings on exotic architectures Precisions: The code in this patchset is directly squashed from the SOF development branch [1], which tracks Mark Brown's for-next branch on a weekly basis and the configurations used for testing are based on the defconfigs at [2]. The patches are also used backported for Chromebook devices. Full disclosure on known limitation and issues (full list at [3]) a) the interaction with ASoC is not always perfect, there are a couple of points where a better solution is desired (use of private data, support for link DMA, etc). The known points are explicitly documented in the code and will be updated. To be clearer, it's our belief that SOF does not cripple ASoC in any way, and that merging this SOF core does not harm others. It's just complicated to get things right, especially on a couple of cases where the topology and DPCM frameworks generate complex flows that very few people understand. b) The get/put methods for controls generate an IPC and possibly a wake-up. This is not optimal and is being fixed. c) runtime_pm is being hardened and the use of SMART_SUSPEND was suggested. Thank you for reviews and comments, we appreciate the time spent commenting on this large patchset. Thanks in particular to Alan Cox and Andy Shevchenko for their comments on an earlier version. This patchset also includes contributions from Daniel Baluta for loading code on non-Intel platforms. Pierre [1] https://github.com/thesofproject/linux [2] https://github.com/thesofproject/kconfig [3] https://github.com/thesofproject/linux/issues Liam Girdwood (12): ASoC: SOF: Add Sound Open Firmware driver core ASoC: SOF: Add Sound Open Firmware KControl support ASoC: SOF: Add driver debug support. ASoC: SOF: Add support for IPC IO between DSP and Host ASoC: SOF: Add PCM operations support ASoC: SOF: Add support for loading topologies ASoC: SOF: Add DSP firmware logger support ASoC: SOF: Add DSP HW abstraction operations ASoC: SOF: Add firmware loader support ASoC: SOF: Add userspace ABI support ASoC: SOF: Add PM support ASoC: SOF: Add Nocodec machine driver support Pierre-Louis Bossart (2): ASoC: SOF: Add xtensa support ASoC: SOF: Add utils include/sound/sof.h | 100 + include/sound/sof/control.h | 158 ++ include/sound/sof/dai-intel.h | 178 ++ include/sound/sof/dai.h | 75 + include/sound/sof/header.h | 158 ++ include/sound/sof/info.h | 118 ++ include/sound/sof/pm.h | 48 + include/sound/sof/stream.h | 148 ++ include/sound/sof/topology.h | 256 +++ include/sound/sof/trace.h | 66 + include/sound/sof/xtensa.h | 44 + include/uapi/sound/sof/abi.h | 62 + include/uapi/sound/sof/eq.h | 172 ++ include/uapi/sound/sof/fw.h | 78 + include/uapi/sound/sof/header.h | 27 + include/uapi/sound/sof/manifest.h | 188 ++ include/uapi/sound/sof/tokens.h | 103 + include/uapi/sound/sof/tone.h | 21 + include/uapi/sound/sof/trace.h | 97 + sound/soc/sof/control.c | 544 ++++++ sound/soc/sof/core.c | 489 +++++ sound/soc/sof/debug.c | 219 +++ sound/soc/sof/ipc.c | 742 ++++++++ sound/soc/sof/loader.c | 376 ++++ sound/soc/sof/nocodec.c | 109 ++ sound/soc/sof/ops.c | 204 ++ sound/soc/sof/ops.h | 403 ++++ sound/soc/sof/pcm.c | 723 +++++++ sound/soc/sof/pm.c | 373 ++++ sound/soc/sof/sof-priv.h | 616 ++++++ sound/soc/sof/topology.c | 2913 +++++++++++++++++++++++++++++ sound/soc/sof/trace.c | 295 +++ sound/soc/sof/utils.c | 112 ++ sound/soc/sof/xtensa/Kconfig | 2 + sound/soc/sof/xtensa/Makefile | 5 + sound/soc/sof/xtensa/core.c | 138 ++ 36 files changed, 10360 insertions(+) create mode 100644 include/sound/sof.h create mode 100644 include/sound/sof/control.h create mode 100644 include/sound/sof/dai-intel.h create mode 100644 include/sound/sof/dai.h create mode 100644 include/sound/sof/header.h create mode 100644 include/sound/sof/info.h create mode 100644 include/sound/sof/pm.h create mode 100644 include/sound/sof/stream.h create mode 100644 include/sound/sof/topology.h create mode 100644 include/sound/sof/trace.h create mode 100644 include/sound/sof/xtensa.h create mode 100644 include/uapi/sound/sof/abi.h create mode 100644 include/uapi/sound/sof/eq.h create mode 100644 include/uapi/sound/sof/fw.h create mode 100644 include/uapi/sound/sof/header.h create mode 100644 include/uapi/sound/sof/manifest.h create mode 100644 include/uapi/sound/sof/tokens.h create mode 100644 include/uapi/sound/sof/tone.h create mode 100644 include/uapi/sound/sof/trace.h create mode 100644 sound/soc/sof/control.c create mode 100644 sound/soc/sof/core.c create mode 100644 sound/soc/sof/debug.c create mode 100644 sound/soc/sof/ipc.c create mode 100644 sound/soc/sof/loader.c create mode 100644 sound/soc/sof/nocodec.c create mode 100644 sound/soc/sof/ops.c create mode 100644 sound/soc/sof/ops.h create mode 100644 sound/soc/sof/pcm.c create mode 100644 sound/soc/sof/pm.c create mode 100644 sound/soc/sof/sof-priv.h create mode 100644 sound/soc/sof/topology.c create mode 100644 sound/soc/sof/trace.c create mode 100644 sound/soc/sof/utils.c create mode 100644 sound/soc/sof/xtensa/Kconfig create mode 100644 sound/soc/sof/xtensa/Makefile create mode 100644 sound/soc/sof/xtensa/core.c -- 2.17.1

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[Sound-open-firmware] can stream-box size be 0?
by Guennadi Liakhovetski 04 Apr '19

04 Apr '19

Hi, In kernel ipc.c I see "if (sdev->stream_box.size == 0)" checks at exactly 4 locations, but all currently supported by SOF platforms set the size to 0x200. Do we need those checks or can we safely assume, that the size is never 0? Thanks Guennadi

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[Sound-open-firmware] [PATCH v4 00/20] ASoC: Sound Open Firmware (SOF) - Intel support
by Pierre-Louis Bossart 04 Apr '19

04 Apr '19

This patch series introduces the support for Intel devices (Baytrail, CherryTrail, Broadwell, ApolloLake, GeminiLake, CannonLake, IceLake). Support for Haswell, Skylake and KabyLake is incomplete at the moment and is not shared for now. The series starts with the 'legacy' devices, then all the more recent ones and concludes with ACPI/PCI hooks. SKL+ platforms can be compiled without HDaudio link/codec support, in which case the hdac library is not used. When support for HDMI or HDaudio codecs is selected, parts of this library are used. A small set of machine drivers supported by SOF is now provided as part of this series, more to follow. Support for SPI-based devices, compressed streams is also not provided for now since it's not ready for upstream just yet. Thank you for reviews and comments, we appreciate the time spent commenting on this large patchset. Thanks in particular to Alan Cox and Andy Shevchenko for their comments on an earlier version. Changes since v3: Removed Haswell, Skylake and Kabylake support (code is not tested or is still under development). These devices will be re-added when there is functional firmware and for Skylake/Kabylake a signed version of the firmware usable on existing platforms. Added support for existing machine drivers when relevant (more machine drivers will be added in next batch) Fixed hardware programming sequences (ROM init timeout, HDaudio capture, simultaneous capture and playback, DMA preload) Avoid reading IPC reply on CTX_SAVE reply since memory windows might be powered off. Simplified NOCODEC support, now mutually exclusive with HDaudio link to avoid suspend/resume issues. Changes since v2: Addressed dozens of comments from Takashi Iwai, Mark Brown, Andy Shevchenko, Daniel Baluta (Thanks!) Transition to new display power management Fixed suspend issues Optimized register polling, better handling of timeouts and firmware download retries Detect number of HDaudio codec and select machine driver accordingly Added workqueue based probe for HDaudio (dependency on modules) Fixed platform name override and conflicts with DT deferred probe changes Added prefix for firmware and topology files and module arguments Split Baytrail and Edison Fixed warnings (smatch, cppcheck) Keyon Jie (2): ASoC: SOF: Intel: Add hda-bus support and initialization ASoC: SOF: Intel: add SKL+ platform DAIs Liam Girdwood (15): ASoC: SOF: Intel: Add BYT, CHT and BSW DSP HW support. ASoC: SOF: Intel: Add BDW HW DSP support ASoC: SOF: Intel: Add APL/CNL HW DSP support ASoC: SOF: Intel: Add HDA controller for Intel DSP ASoC: SOF: Intel: Add Intel specific HDA DSP HW operations ASoC: SOF: Intel: Add Intel specific HDA IPC mechanisms. ASoC: SOF: Intel: Add Intel specific HDA firmware loader ASoC: SOF: Intel: Add Intel specific HDA PCM operations ASoC: SOF: Intel: Add Intel specific HDA stream operations ASoC: SOF: Intel: Add Intel specific HDA trace operations ASoC: SOF: Intel: Add platform differentiation for APL and CNL ASoC: SOF: Add ACPI device support ASoC: SOF: Add PCI device support ASoC: SOF: Add Build support for SOF core and Intel drivers ASoC: Intel: Make sure HSW/BDW based machine drivers build for SOF Pierre-Louis Bossart (3): ASoC: SOF: Intel: Add support for HDAudio codecs ASoC: Intel: Kconfig: expose common option between SST and SOF drivers ASoC: Intel: select relevant machine drivers for SOF sound/soc/Kconfig | 1 + sound/soc/Makefile | 1 + sound/soc/intel/Kconfig | 7 +- sound/soc/intel/boards/Kconfig | 22 +- sound/soc/intel/boards/bdw-rt5677.c | 4 + sound/soc/intel/boards/broadwell.c | 4 + sound/soc/intel/boards/haswell.c | 4 + sound/soc/sof/Kconfig | 141 +++++ sound/soc/sof/Makefile | 18 + sound/soc/sof/intel/Kconfig | 222 ++++++++ sound/soc/sof/intel/Makefile | 15 + sound/soc/sof/intel/apl.c | 112 ++++ sound/soc/sof/intel/bdw.c | 694 ++++++++++++++++++++++ sound/soc/sof/intel/byt.c | 853 ++++++++++++++++++++++++++++ sound/soc/sof/intel/cnl.c | 257 +++++++++ sound/soc/sof/intel/hda-bus.c | 108 ++++ sound/soc/sof/intel/hda-codec.c | 171 ++++++ sound/soc/sof/intel/hda-ctrl.c | 165 ++++++ sound/soc/sof/intel/hda-dai.c | 318 +++++++++++ sound/soc/sof/intel/hda-dsp.c | 428 ++++++++++++++ sound/soc/sof/intel/hda-ipc.c | 402 +++++++++++++ sound/soc/sof/intel/hda-loader.c | 366 ++++++++++++ sound/soc/sof/intel/hda-pcm.c | 242 ++++++++ sound/soc/sof/intel/hda-stream.c | 682 ++++++++++++++++++++++ sound/soc/sof/intel/hda-trace.c | 98 ++++ sound/soc/sof/intel/hda.c | 672 ++++++++++++++++++++++ sound/soc/sof/intel/hda.h | 546 ++++++++++++++++++ sound/soc/sof/intel/shim.h | 179 ++++++ sound/soc/sof/sof-acpi-dev.c | 310 ++++++++++ sound/soc/sof/sof-pci-dev.c | 373 ++++++++++++ 30 files changed, 7407 insertions(+), 8 deletions(-) create mode 100644 sound/soc/sof/Kconfig create mode 100644 sound/soc/sof/Makefile create mode 100644 sound/soc/sof/intel/Kconfig create mode 100644 sound/soc/sof/intel/Makefile create mode 100644 sound/soc/sof/intel/apl.c create mode 100644 sound/soc/sof/intel/bdw.c create mode 100644 sound/soc/sof/intel/byt.c create mode 100644 sound/soc/sof/intel/cnl.c create mode 100644 sound/soc/sof/intel/hda-bus.c create mode 100644 sound/soc/sof/intel/hda-codec.c create mode 100644 sound/soc/sof/intel/hda-ctrl.c create mode 100644 sound/soc/sof/intel/hda-dai.c create mode 100644 sound/soc/sof/intel/hda-dsp.c create mode 100644 sound/soc/sof/intel/hda-ipc.c create mode 100644 sound/soc/sof/intel/hda-loader.c create mode 100644 sound/soc/sof/intel/hda-pcm.c create mode 100644 sound/soc/sof/intel/hda-stream.c create mode 100644 sound/soc/sof/intel/hda-trace.c create mode 100644 sound/soc/sof/intel/hda.c create mode 100644 sound/soc/sof/intel/hda.h create mode 100644 sound/soc/sof/intel/shim.h create mode 100644 sound/soc/sof/sof-acpi-dev.c create mode 100644 sound/soc/sof/sof-pci-dev.c -- 2.17.1

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[Sound-open-firmware] SOF project recommendation
by Salma raiss 03 Apr '19

03 Apr '19

Hello, I'm a Master 2 student at "Université de Bretagne Occidentale (UBO)". Currently I'm working on the "Implementation of audio processing on a DSP's target", and I would like to have some recommendations concerning the following points: - What would you recommend me to start with? - What path would you recommend me to follow? - Which board would you recommend me to use? Cordially, RAISS Salma ________________________________________________________ Nom : RAISS Prénom : Salma Etablissement : Université de Bretagne Occidentale Filière : Logiciels pour les Systèmes Embarqués Adresse mail : salmaraiss(a)gmail.com Numéro de téléphone : +336293563719

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