kernel/sound/soc/sof/ipc4-topology.h, branch 0x221E-v0.0.1-v6.19

ASoC: SOF: ipc4/Intel: Fix the host buffer

2025-10-02T17:07:06Z

Merge series from Peter Ujfalusi : The size of the DSP host buffer was incorrectly defined as 2ms while it is 4ms and the ChainDMA PCMs are using 5ms as host facing buffer. The constraint will be set against the period time rather than the buffer time to make sure that application will not face with xruns when the DMA bursts to refill the host buffer. The minimal period size will be also used by Pipewire in case of SOF cards to set the headroom to a length which will avoid the cases when the hw_ptr jumps over the appl_ptr because of a burst. Iow, it will make Pipewire to keep a safe distance from the hw_ptr. https://github.com/thesofproject/linux/issues/5284 https://gitlab.freedesktop.org/pipewire/wireplumber/-/merge_requests/740 https://gitlab.freedesktop.org/pipewire/pipewire/-/merge_requests/2548

ASoC: SOF: ipc4-topology: Account for different ChainDMA host buffer size

2025-10-02T14:03:31Z

For ChainDMA the firmware allocates 5ms host buffer instead of the standard 4ms which should be taken into account when setting the constraint on the buffer size. Fixes: 842bb8b62cc6 ("ASoC: SOF: ipc4-topology: Save the DMA maximum burst size for PCMs") Signed-off-by: Peter Ujfalusi Reviewed-by: Ranjani Sridharan Reviewed-by: Kai Vehmanen Reviewed-by: Bard Liao Link: https://patch.msgid.link/20251002135752.2430-3-peter.ujfalusi@linux.intel.com Signed-off-by: Mark Brown

ASoC: SOF: ipc4-topology: Correct the minimum host DMA buffer size

2025-10-02T14:03:30Z

The firmware has changed the minimum host buffer size from 2 periods to 4 periods (1 period is 1ms) which was missed by the kernel side. Adjust the SOF_IPC4_MIN_DMA_BUFFER_SIZE to 4 ms to align with firmware. Link: https://github.com/thesofproject/sof/commit/f0a14a3f410735db18a79eb7a5f40dc49fdee7a7 Fixes: 594c1bb9ff73 ("ASoC: SOF: ipc4-topology: Do not parse the DMA_BUFFER_SIZE token") Signed-off-by: Peter Ujfalusi Reviewed-by: Ranjani Sridharan Reviewed-by: Kai Vehmanen Reviewed-by: Bard Liao Link: https://patch.msgid.link/20251002135752.2430-2-peter.ujfalusi@linux.intel.com Signed-off-by: Mark Brown

ASoC: SOF: ipc4-pcm: fix start offset calculation for chain DMA

2025-10-02T12:31:44Z

Assumption that chain DMA module starts the link DMA when 1ms of data is available from host is not correct. Instead the firmware chain DMA module fills the link DMA with initial buffer of zeroes and the host and link DMAs are started at the same time. This results in a small error in delay calculation. This can become a more severe problem if host DMA has delays that exceed 1ms. This results in negative delay to be calculated and bogus values reported to applications. This can confuse some applications like alsa_conformance_test. Fix the issue by correctly calculating the firmware chain DMA preamble size and initializing the start offset to this value. Cc: stable@vger.kernel.org Fixes: a1d203d390e0 ("ASoC: SOF: ipc4-pcm: Enable delay reporting for ChainDMA streams") Signed-off-by: Kai Vehmanen Reviewed-by: Péter Ujfalusi Reviewed-by: Bard Liao Signed-off-by: Peter Ujfalusi Link: https://patch.msgid.link/20251002074719.2084-3-peter.ujfalusi@linux.intel.com Signed-off-by: Mark Brown

ASoC: SOF: ipc4: Add support for 8-bit and float

2025-08-29T22:19:57Z

Merge series from Peter Ujfalusi : This series will add support for various 8-bit and float formats.

ASoC: sof: ipc4-topology: Add support to sched_domain attribute

2025-08-29T18:52:20Z

Add SOF_TKN_COMP_SCHED_DOMAIN and connect it to struct snd_sof_widget comp_domain member, with new get_token_comp_domain() function. The logic is such that if the topology attribute is not present in the widget node the corresponding IPC4 extension value is taken from the module's manifest like before. But if the attribute is found and recognized its value overrides what is there in the manifest. Signed-off-by: Jyri Sarha Reviewed-by: Péter Ujfalusi Reviewed-by: Ranjani Sridharan Signed-off-by: Peter Ujfalusi Message-ID: <20250829151101.27327-1-peter.ujfalusi@linux.intel.com> Signed-off-by: Mark Brown

ASoC: SOF: ipc4-topology: Add support for 8-bit formats

2025-08-29T11:34:06Z

This patch enables use of 8-bit unsigned, A-law, and mu-law sample formats with IPC4 SOF. The ipc4-topology.h is updated with IPC4 sample types. The purpose is to convert ALSA types to IPC4 types. The functions of_ipc4_update_hw_params(), sof_ipc4_get_valid_bits(), and new function sof_ipc4_get_sample_type() are updated to handle the sample type conversions. The function sof_ipc4_prepare_copier_module() is updated to set the DMA SCS bit for all non 32 bits sample types. The change to function sof_ipc4_get_valid_bits() returns 8 bits for these ALSA formats. The change to function sof_ipc4_prepare_copier_module() is needed to handle properly all non 32-bit formats with SCS bit set. To support playback with new 8 bits types, the sof_ipc4_init_input_audio_fmt() function is updated to get the sample type and use it in search for copier input pin format. To support capture, the sof_ipc4_init_output_audio_fmt() is updated similarly. Since the function uses separate out_ref_type argument, instead of single parameters struct, the out_ref_type needs to be added to every user of the function. Therefore functions sof_ipc4_prepare_copier_module(), sof_ipc4_prepare_gain_module(), sof_ipc4_prepare_mixer_module(), sof_ipc4_prepare_src_module(), and sof_ipc4_prepare_process_module() are updated to set the out_ref_type. Signed-off-by: Seppo Ingalsuo Reviewed-by: Péter Ujfalusi Reviewed-by: Bard Liao Reviewed-by: Liam Girdwood Signed-off-by: Peter Ujfalusi Message-ID: <20250829105305.31818-3-peter.ujfalusi@linux.intel.com> Signed-off-by: Mark Brown

ASoC: SOF: ipc4-pcm: Enable delay reporting for ChainDMA streams

2025-06-19T23:21:19Z

All streams (currently) which is configured to use ChainDMA can only work on Link/host DMA pairs where the link side position can be access via host registers (like HDA on CAVS 2.5 platforms). Since the firmware does not provide time_info for ChainDMA, unlike for HDA stream, the kernel should calculate the start and end offsets that is needed for the delay calculation. With this small change we can report accurate delays when the stream is configured to use ChainDMA. Signed-off-by: Peter Ujfalusi Reviewed-by: Bard Liao Reviewed-by: Liam Girdwood Reviewed-by: Ranjani Sridharan Link: https://patch.msgid.link/20250619102848.12389-1-peter.ujfalusi@linux.intel.com Signed-off-by: Mark Brown

ASoC: SOF: ipc4-topology: Add load of ASRC component

2025-06-19T23:21:17Z

This patch adds to IPC4 topology parsing the support for the asynchronous sample rate converter (ASRC) SOF component. It is applied for the DAPM widget type SND_SOC_TPLG_DAPM_ASRC. The parsed SOF tokens for ASRC are SOF_TKN_ASRC_RATE_OUT and SOF_TKN_ASRC_OPERATION_MODE. Signed-off-by: Seppo Ingalsuo Reviewed-by: Liam Girdwood Reviewed-by: Péter Ujfalusi Reviewed-by: Ranjani Sridharan Reviewed-by: Bard Liao Signed-off-by: Peter Ujfalusi Link: https://patch.msgid.link/20250619104735.26161-1-peter.ujfalusi@linux.intel.com Signed-off-by: Mark Brown

ASoC: SOF: ipc4-topology/pcm: Rename sof_ipc4_copier_is_single_format()

2024-05-30T11:33:30Z

Rename the sof_ipc4_copier_is_single_format() to sof_ipc4_copier_is_single_bitdepth() to clear the confusion of the use of 'format' when we are querying information on the bit depth. Format is used to describe a combination of parameters (rate, channels, sample format / bit depth). Rename the flags used to store the result at the same time. Signed-off-by: Peter Ujfalusi Reviewed-by: Pierre-Louis Bossart Reviewed-by: Bard Liao Reviewed-by: Seppo Ingalsuo Reviewed-by: Ranjani Sridharan Link: https://msgid.link/r/20240530111918.21974-4-peter.ujfalusi@linux.intel.com Signed-off-by: Mark Brown