Hi Mauro, This adds support for the imx-asrc m2m audio rate control driver. Most of these patches add support for the new v4l-audioX device nodes and related types, and adding support for fixed point control types. The ASoC patches have been acked by Mark Brown. It also adds a vim2m-audio test driver so we can test the v4l-audio infrastructure. Since V4L2 is fourcc-based all the way, directly using snd_pcm_format_t values is not an option: fourcc's are expected to be printable characters, and it is pretty much certain that there are applications that show it like that to the end-user. The utilities in v4l-utils certainly do, and it is in fact a perfectly reasonable thing to do. So instead we map the snd_pcm_format_t value to a fourcc with v4l2_audfmt_to_fourcc and map it back with v4l2_fourcc_to_audfmt. This PR is using v15 of the patch series: https://patchwork.linuxtv.org/project/linux-media/list/?series=12460 And the corresponding v4l-utils patch series is here: https://patchwork.linuxtv.org/user/todo/linux-media/?series=12074 Regards, Hans The following changes since commit b14257abe7057def6127f6fb2f14f9adc8acabdb: media: rcar-isp: Disallow unbind of devices (2024-03-07 16:35:13 +0100) are available in the Git repository at: git://linuxtv.org/hverkuil/media_tree.git tags/br-audio for you to fetch changes up to af06c8792653c42d1f126505ec9180255091d94e: media: vim2m-audio: add virtual driver for audio memory to memory (2024-03-19 15:55:38 +0100) ---------------------------------------------------------------- Tag branch ---------------------------------------------------------------- Hans Verkuil (1): media: v4l2-ctrls: add support for fraction_bits Shengjiu Wang (15): ASoC: fsl_asrc: define functions for memory to memory usage ASoC: fsl_easrc: define functions for memory to memory usage ASoC: fsl_asrc: move fsl_asrc_common.h to include/sound ASoC: fsl_asrc: register m2m platform device ASoC: fsl_easrc: register m2m platform device media: uapi: Add V4L2_CAP_AUDIO_M2M capability flag media: v4l2: Add audio capture and output support media: uapi: Define audio sample format fourcc type media: uapi: Add V4L2_CTRL_CLASS_M2M_AUDIO media: uapi: Add audio rate controls support media: uapi: Declare interface types for Audio media: uapi: Add an entity type for audio resampler media: vivid: add fixed point test controls media: imx-asrc: Add memory to memory driver media: vim2m-audio: add virtual driver for audio memory to memory Documentation/userspace-api/media/mediactl/media-types.rst | 11 + Documentation/userspace-api/media/v4l/buffer.rst | 6 + Documentation/userspace-api/media/v4l/common.rst | 1 + Documentation/userspace-api/media/v4l/dev-audio-mem2mem.rst | 71 +++ Documentation/userspace-api/media/v4l/devices.rst | 1 + Documentation/userspace-api/media/v4l/ext-ctrls-audio-m2m.rst | 59 +++ Documentation/userspace-api/media/v4l/pixfmt-audio.rst | 100 ++++ Documentation/userspace-api/media/v4l/pixfmt.rst | 1 + Documentation/userspace-api/media/v4l/vidioc-enum-fmt.rst | 2 + Documentation/userspace-api/media/v4l/vidioc-g-ext-ctrls.rst | 4 + Documentation/userspace-api/media/v4l/vidioc-g-fmt.rst | 4 + Documentation/userspace-api/media/v4l/vidioc-querycap.rst | 3 + Documentation/userspace-api/media/v4l/vidioc-queryctrl.rst | 11 +- Documentation/userspace-api/media/videodev2.h.rst.exceptions | 3 + MAINTAINERS | 17 + drivers/media/common/videobuf2/videobuf2-v4l2.c | 4 + drivers/media/platform/nxp/Kconfig | 13 + drivers/media/platform/nxp/Makefile | 1 + drivers/media/platform/nxp/imx-asrc.c | 1256 +++++++++++++++++++++++++++++++++++++++++++++++++++ drivers/media/test-drivers/Kconfig | 10 + drivers/media/test-drivers/Makefile | 1 + drivers/media/test-drivers/vim2m-audio.c | 793 ++++++++++++++++++++++++++++++++ drivers/media/test-drivers/vivid/vivid-core.h | 2 + drivers/media/test-drivers/vivid/vivid-ctrls.c | 26 ++ drivers/media/v4l2-core/v4l2-compat-ioctl32.c | 9 + drivers/media/v4l2-core/v4l2-ctrls-api.c | 1 + drivers/media/v4l2-core/v4l2-ctrls-core.c | 93 +++- drivers/media/v4l2-core/v4l2-ctrls-defs.c | 10 + drivers/media/v4l2-core/v4l2-dev.c | 21 + drivers/media/v4l2-core/v4l2-ioctl.c | 66 +++ drivers/media/v4l2-core/v4l2-mem2mem.c | 13 +- include/media/v4l2-ctrls.h | 13 +- include/media/v4l2-dev.h | 2 + include/media/v4l2-ioctl.h | 34 ++ {sound/soc/fsl => include/sound}/fsl_asrc_common.h | 60 +++ include/uapi/linux/media.h | 2 + include/uapi/linux/v4l2-controls.h | 9 + include/uapi/linux/videodev2.h | 50 +- sound/soc/fsl/fsl_asrc.c | 144 ++++++ sound/soc/fsl/fsl_asrc.h | 4 +- sound/soc/fsl/fsl_asrc_dma.c | 2 +- sound/soc/fsl/fsl_easrc.c | 233 ++++++++++ sound/soc/fsl/fsl_easrc.h | 6 +- 43 files changed, 3145 insertions(+), 27 deletions(-) create mode 100644 Documentation/userspace-api/media/v4l/dev-audio-mem2mem.rst create mode 100644 Documentation/userspace-api/media/v4l/ext-ctrls-audio-m2m.rst create mode 100644 Documentation/userspace-api/media/v4l/pixfmt-audio.rst create mode 100644 drivers/media/platform/nxp/imx-asrc.c create mode 100644 drivers/media/test-drivers/vim2m-audio.c rename {sound/soc/fsl => include/sound}/fsl_asrc_common.h (60%)
