November 2020 - Alsa-devel - mailman.alsa-project.org

ALSA 1.2.4 release
by Jaroslav Kysela 31 May '21

31 May '21

Hello all, new ALSA userspace packages were released. You may download them from the ALSA website http://www.alsa-project.org or directly: FTP: ftp://ftp.alsa-project.org/pub HTTP: https://www.alsa-project.org/files/pub Full list of changes: https://www.alsa-project.org/wiki/Changes_v1.2.3.2_v1.2.4 All files on the primary ALSA site have also GPG signature now. The fingerprint of the public signing key is: F04D F507 37AC 1A88 4C4B 3D71 8380 596D A6E5 9C91 Have fun, Jaroslav -- Jaroslav Kysela <perex(a)perex.cz> Linux Sound Maintainer; ALSA Project; Red Hat, Inc.

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[PATCH 00/14] ASoC: Intel/SOF: extend run-time driver selection to ACPI devices
by Pierre-Louis Bossart 26 Apr '21

26 Apr '21

The module snd-intel-dspcfg, suggested by Jaroslav last year, currently provide the means to select a PCI driver at run-time, based on quirks, recommendations or user selection via a kernel parameter. This capability removed a lot of confusions in distributions and removed the need for recompilations to select legacy HDaudio, SST or SOF drivers. This patchset extends the concept to ACPI devices. This was driven by the desire to at some point deprecate the Atom/SST driver for Baytrail and Cherrytrail, which is no longer maintained by Intel. By having the SOF driver enabled by distributions for Baytrail/Cherrytrail, we can enable more end-user tests and make the transition easier for distributions (likely in 2021 at this point). This patchset provides the same solution for Broadwell, mainly to have a single build for all Intel platforms. SOF on Broadwell remains an option not recommended for distributions, as long as the 'catpt' driver is maintained there is no burning desire to make SOF the default on the three Broadwell-based platforms with the DSP enabled. Pierre-Louis Bossart (14): ASoC: Intel: broadwell: add missing pm_ops ASoC: Intel: bdw-rt5677: add missing pm_ops ALSA: hda: intel-dsp-config: add helper for ACPI DSP driver selection ASoC: soc-acpi: add helper to identify parent driver. ASoC: Intel: boards: byt/cht: set card and driver name at run time ASoC: Intel: byt/cht: set pm ops dynamically ASoC: SOF: acpi: add dynamic selection of DSP driver ASoC: Intel: Atom: add dynamic selection of DSP driver ASoC: SOF: Intel: allow for coexistence between SOF and Atom/SST drivers ALSA: hda: intel-dsp-config: add Broadwell ACPI DSP driver selection ASoC: Intel: broadwell: set card and driver name dynamically ASoC: Intel: catpt: add dynamic selection of DSP driver ASoC: SOF: Intel: allow for coexistence between SOF and catpt drivers ALSA: hda: intel-dsp-config: ignore dsp_driver parameter for PCI legacy devices include/sound/intel-dsp-config.h | 7 ++ include/sound/soc-acpi.h | 6 + sound/hda/intel-dsp-config.c | 111 +++++++++++++++++++ sound/soc/intel/Kconfig | 2 + sound/soc/intel/atom/sst/sst_acpi.c | 8 ++ sound/soc/intel/boards/bdw-rt5650.c | 17 ++- sound/soc/intel/boards/bdw-rt5677.c | 18 ++- sound/soc/intel/boards/broadwell.c | 20 ++-- sound/soc/intel/boards/bytcht_cx2072x.c | 27 +++-- sound/soc/intel/boards/bytcht_da7213.c | 27 +++-- sound/soc/intel/boards/bytcht_es8316.c | 29 +++-- sound/soc/intel/boards/bytcr_rt5640.c | 30 +++-- sound/soc/intel/boards/bytcr_rt5651.c | 27 +++-- sound/soc/intel/boards/cht_bsw_max98090_ti.c | 29 +++-- sound/soc/intel/boards/cht_bsw_nau8824.c | 29 +++-- sound/soc/intel/boards/cht_bsw_rt5645.c | 38 ++++--- sound/soc/intel/boards/cht_bsw_rt5672.c | 29 +++-- sound/soc/intel/catpt/device.c | 12 ++ sound/soc/sof/intel/Kconfig | 33 +++--- sound/soc/sof/sof-acpi-dev.c | 14 ++- 20 files changed, 392 insertions(+), 121 deletions(-) -- 2.25.1

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[PATCH] ASoC: fsl: imx-pcm-dma: Don't request dma channel in probe
by Shengjiu Wang 22 Apr '21

22 Apr '21

There are two requirements that we need to move the request of dma channel from probe to open. - When dma device binds with power-domains, the power will be enabled when we request dma channel. If the request of dma channel happen on probe, then the power-domains will be always enabled after kernel boot up, which is not good for power saving, so we need to move the request of dma channel to .open(); - With FE-BE case, if the dma channel is requested in probe, then there will be below issue, which is caused by that the dma channel will be requested duplicately [ 638.906268] sysfs: cannot create duplicate filename '/devices/soc0/soc/2000000.bus/2000000.spba-bus/2024000.esai/dma:tx' [ 638.919061] CPU: 1 PID: 673 Comm: aplay Not tainted 5.7.0-rc1-12956-gfc64b2585593 #287 [ 638.927113] Hardware name: Freescale i.MX6 Quad/DualLite (Device Tree) [ 638.933690] [<c0110dd8>] (unwind_backtrace) from [<c010b8ec>] (show_stack+0x10/0x14) [ 638.941464] [<c010b8ec>] (show_stack) from [<c0557fc0>] (dump_stack+0xe4/0x118) [ 638.948808] [<c0557fc0>] (dump_stack) from [<c032aeb4>] (sysfs_warn_dup+0x50/0x64) [ 638.956406] [<c032aeb4>] (sysfs_warn_dup) from [<c032b1a8>] (sysfs_do_create_link_sd+0xc8/0xd4) [ 638.965134] [<c032b1a8>] (sysfs_do_create_link_sd) from [<c05dc668>] (dma_request_chan+0xb0/0x210) [ 638.974120] [<c05dc668>] (dma_request_chan) from [<c05dc7d0>] (dma_request_slave_channel+0x8/0x14) [ 638.983111] [<c05dc7d0>] (dma_request_slave_channel) from [<c09d5548>] (fsl_asrc_dma_hw_params+0x1e0/0x438) [ 638.992881] [<c09d5548>] (fsl_asrc_dma_hw_params) from [<c09c1654>] (soc_pcm_hw_params+0x4a0/0x6a8) [ 639.001952] [<c09c1654>] (soc_pcm_hw_params) from [<c09c39d4>] (dpcm_fe_dai_hw_params+0x70/0xe4) [ 639.010765] [<c09c39d4>] (dpcm_fe_dai_hw_params) from [<c099b274>] (snd_pcm_hw_params+0x158/0x418) [ 639.019750] [<c099b274>] (snd_pcm_hw_params) from [<c099c5a0>] (snd_pcm_ioctl+0x734/0x183c) [ 639.028129] [<c099c5a0>] (snd_pcm_ioctl) from [<c029ff94>] (ksys_ioctl+0x2ac/0xb98) [ 639.035812] [<c029ff94>] (ksys_ioctl) from [<c0100080>] (ret_fast_syscall+0x0/0x28) [ 639.043490] Exception stack(0xec529fa8 to 0xec529ff0) [ 639.048565] 9fa0: bee84650 01321870 00000004 c25c4111 bee84650 0002000f [ 639.056766] 9fc0: bee84650 01321870 01321820 00000036 00001f40 00000000 0002c2f8 00000003 [ 639.064964] 9fe0: b6f483fc bee8451c b6ee2655 b6e1dcf8 [ 639.070339] fsl-esai-dai 2024000.esai: Cannot create DMA dma:tx symlink Signed-off-by: Shengjiu Wang <shengjiu.wang(a)nxp.com> --- sound/soc/fsl/imx-pcm-dma.c | 173 +++++++++++++++++++++++++++++++++--- 1 file changed, 159 insertions(+), 14 deletions(-) diff --git a/sound/soc/fsl/imx-pcm-dma.c b/sound/soc/fsl/imx-pcm-dma.c index 04a9bc749016..dae53b384df4 100644 --- a/sound/soc/fsl/imx-pcm-dma.c +++ b/sound/soc/fsl/imx-pcm-dma.c @@ -11,6 +11,7 @@ #include <linux/dmaengine.h> #include <linux/types.h> #include <linux/module.h> +#include <linux/dma-mapping.h> #include <sound/core.h> #include <sound/pcm.h> @@ -29,24 +30,168 @@ static bool filter(struct dma_chan *chan, void *param) return true; } -static const struct snd_dmaengine_pcm_config imx_dmaengine_pcm_config = { - .prepare_slave_config = snd_dmaengine_pcm_prepare_slave_config, - .compat_filter_fn = filter, -}; +static int imx_pcm_hw_params(struct snd_soc_component *component, + struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params) +{ + struct snd_pcm_runtime *runtime = substream->runtime; + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0); + struct snd_dmaengine_dai_dma_data *dma_data; + struct dma_slave_config config; + struct dma_chan *chan; + int ret = 0; -int imx_pcm_dma_init(struct platform_device *pdev, size_t size) + snd_pcm_set_runtime_buffer(substream, &substream->dma_buffer); + runtime->dma_bytes = params_buffer_bytes(params); + + chan = snd_dmaengine_pcm_get_chan(substream); + if (!chan) + return -EINVAL; + + ret = snd_hwparams_to_dma_slave_config(substream, params, &config); + if (ret) + return ret; + + dma_data = snd_soc_dai_get_dma_data(cpu_dai, substream); + if (!dma_data) + return -EINVAL; + + snd_dmaengine_pcm_set_config_from_dai_data(substream, + dma_data, + &config); + return dmaengine_slave_config(chan, &config); +} + +static int imx_pcm_hw_free(struct snd_soc_component *component, + struct snd_pcm_substream *substream) { - struct snd_dmaengine_pcm_config *config; + snd_pcm_set_runtime_buffer(substream, NULL); + return 0; +} + +static snd_pcm_uframes_t imx_pcm_pointer(struct snd_soc_component *component, + struct snd_pcm_substream *substream) +{ + return snd_dmaengine_pcm_pointer(substream); +} + +static int imx_pcm_trigger(struct snd_soc_component *component, + struct snd_pcm_substream *substream, int cmd) +{ + return snd_dmaengine_pcm_trigger(substream, cmd); +} + +static int imx_pcm_open(struct snd_soc_component *component, + struct snd_pcm_substream *substream) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + bool tx = substream->stream == SNDRV_PCM_STREAM_PLAYBACK; + struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0); + struct snd_dmaengine_dai_dma_data *dma_data; + struct device *dev = component->dev; + struct snd_pcm_hardware hw; + struct dma_chan *chan; + int ret; + + ret = snd_pcm_hw_constraint_integer(substream->runtime, + SNDRV_PCM_HW_PARAM_PERIODS); + if (ret < 0) { + dev_err(dev, "failed to set pcm hw params periods\n"); + return ret; + } + + dma_data = snd_soc_dai_get_dma_data(cpu_dai, substream); + if (!dma_data) + return -EINVAL; + + chan = dma_request_slave_channel(cpu_dai->dev, tx ? "tx" : "rx"); + if (!chan) { + /* Try to request channel using compat_filter_fn */ + chan = snd_dmaengine_pcm_request_channel(filter, + dma_data->filter_data); + if (!chan) + return -ENXIO; + } - config = devm_kzalloc(&pdev->dev, - sizeof(struct snd_dmaengine_pcm_config), GFP_KERNEL); - if (!config) - return -ENOMEM; - *config = imx_dmaengine_pcm_config; + ret = snd_dmaengine_pcm_open(substream, chan); + if (ret) + goto pcm_open_fail; - return devm_snd_dmaengine_pcm_register(&pdev->dev, - config, - SND_DMAENGINE_PCM_FLAG_COMPAT); + memset(&hw, 0, sizeof(hw)); + hw.info = SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_MMAP_VALID | + SNDRV_PCM_INFO_INTERLEAVED; + hw.periods_min = 2; + hw.periods_max = UINT_MAX; + hw.period_bytes_min = 256; + hw.period_bytes_max = dma_get_max_seg_size(chan->device->dev); + hw.buffer_bytes_max = IMX_DEFAULT_DMABUF_SIZE; + hw.fifo_size = dma_data->fifo_size; + + /* Refine the hw according to caps of DMA. */ + ret = snd_dmaengine_pcm_refine_runtime_hwparams(substream, + dma_data, + &hw, + chan); + if (ret < 0) + goto refine_runtime_hwparams_fail; + + snd_soc_set_runtime_hwparams(substream, &hw); + + /* Support allocate memory from IRAM */ + ret = snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV_IRAM, + chan->device->dev, + hw.buffer_bytes_max, + &substream->dma_buffer); + if (ret < 0) + goto alloc_pagas_fail; + + return 0; + +alloc_pagas_fail: +refine_runtime_hwparams_fail: + snd_dmaengine_pcm_close(substream); +pcm_open_fail: + dma_release_channel(chan); + + return ret; +} + +static int imx_pcm_close(struct snd_soc_component *component, + struct snd_pcm_substream *substream) +{ + if (substream) { + snd_dma_free_pages(&substream->dma_buffer); + substream->dma_buffer.area = NULL; + substream->dma_buffer.addr = 0; + } + + return snd_dmaengine_pcm_close_release_chan(substream); +} + +static int imx_pcm_new(struct snd_soc_component *component, + struct snd_soc_pcm_runtime *rtd) +{ + struct snd_card *card = rtd->card->snd_card; + + return dma_coerce_mask_and_coherent(card->dev, DMA_BIT_MASK(32)); +} + +static const struct snd_soc_component_driver imx_pcm_component = { + .name = "imx-pcm-dma", + .pcm_construct = imx_pcm_new, + .open = imx_pcm_open, + .close = imx_pcm_close, + .hw_params = imx_pcm_hw_params, + .hw_free = imx_pcm_hw_free, + .trigger = imx_pcm_trigger, + .pointer = imx_pcm_pointer, +}; + +int imx_pcm_dma_init(struct platform_device *pdev, size_t size) +{ + return devm_snd_soc_register_component(&pdev->dev, + &imx_pcm_component, NULL, 0); } EXPORT_SYMBOL_GPL(imx_pcm_dma_init); -- 2.21.0

5 17

ASoc: soc_core.c stream direction from snd_soc_dai
by Matt Flax 26 Feb '21

26 Feb '21

Hi there, A large number of audio codecs allow different formats for playback and capture. This becomes very useful when there are different latencies between playback and capture hardware data lines. For example digital isolation chips typically have a 1 bit delay in propagation as the bit clock rate gets faster for higher sample rates. By setting the capture and playback formats to differ by one or two bit clock cycles, the delay problem is solved. There doesn't seem to be a simple way to detect stream direction in the codec driver's set_fmt function. The snd_soc_runtime_set_dai_fmt function : https://github.com/torvalds/linux/blob/master/sound/soc/soc-core.c#L1480 calls the snd_soc_dai_set_fmt function : https://github.com/torvalds/linux/blob/master/sound/soc/soc-dai.c#L101 which calls the set_fmt function : https://github.com/torvalds/linux/blob/master/include/sound/soc-dai.h#L189 The snd_soc_dai_ops set_fmt function is defined as : int (*set_fmt)(struct snd_soc_dai *dai, unsigned int fmt); Is there a simple way to find the stream direction from a snd_soc_dai ? If the stream direction can be detected then the playback and capture formats can be set independently for the codec. It there a different way to set the playback and capture formats for the codec independently at runtime, depending on the sample rate ? Matt

5 8

[PATCH] Add basic capture support for Pioneer DJ DJM-250MK2
by František Kučera 20 Jan '21

20 Jan '21

From: František Kučera <franta-linux(a)frantovo.cz> This patch extends support for DJM-250MK2 and allows recording. However, DVS is not possible yet (see the comment in code). Signed-off-by: František Kučera <franta-linux(a)frantovo.cz> --- sound/usb/pcm.c | 1 + sound/usb/quirks-table.h | 62 ++++++++++++++++++++++++++++++++++------ sound/usb/quirks.c | 1 + 3 files changed, 56 insertions(+), 8 deletions(-) diff --git a/sound/usb/pcm.c b/sound/usb/pcm.c index 5600751803cf..f5fa11deea4d 100644 --- a/sound/usb/pcm.c +++ b/sound/usb/pcm.c @@ -374,6 +374,7 @@ static int set_sync_ep_implicit_fb_quirk(struct snd_usb_substream *subs, ifnum = 2; goto add_sync_ep_from_ifnum; case USB_ID(0x2b73, 0x000a): /* Pioneer DJ DJM-900NXS2 */ + case USB_ID(0x2b73, 0x0017): /* Pioneer DJ DJM-250MK2 */ ep = 0x82; ifnum = 0; goto add_sync_ep_from_ifnum; diff --git a/sound/usb/quirks-table.h b/sound/usb/quirks-table.h index f4fb002e3ef4..c6b2f0b8d3e2 100644 --- a/sound/usb/quirks-table.h +++ b/sound/usb/quirks-table.h @@ -3549,14 +3549,40 @@ AU0828_DEVICE(0x2040, 0x7270, "Hauppauge", "HVR-950Q"), { /* * Pioneer DJ DJM-250MK2 - * PCM is 8 channels out @ 48 fixed (endpoints 0x01). - * The output from computer to the mixer is usable. - * - * The input (phono or line to computer) is not working. - * It should be at endpoint 0x82 and probably also 8 channels, - * but it seems that it works only with Pioneer proprietary software. - * Even on officially supported OS, the Audacity was unable to record - * and Mixxx to recognize the control vinyls. + * PCM is 8 channels out @ 48 fixed (endpoint 0x01) + * and 8 channels in @ 48 fixed (endpoint 0x82). + * + * Both playback and recording is working, even simultaneously. + * + * Playback channels could be mapped to: + * - CH1 + * - CH2 + * - AUX + * + * Recording channels could be mapped to: + * - Post CH1 Fader + * - Post CH2 Fader + * - Cross Fader A + * - Cross Fader B + * - MIC + * - AUX + * - REC OUT + * + * There is remaining problem with recording directly from PHONO/LINE. + * If we map a channel to: + * - CH1 Control Tone PHONO + * - CH1 Control Tone LINE + * - CH2 Control Tone PHONO + * - CH2 Control Tone LINE + * it is silent. + * There is no signal even on other operating systems with official drivers. + * The signal appears only when a supported application is started. + * This needs to be investigated yet... + * (there is quite a lot communication on the USB in both directions) + * + * In current version this mixer could be used for playback + * and for recording from vinyls (through Post CH* Fader) + * but not for DVS (Digital Vinyl Systems) like in Mixxx. */ USB_DEVICE_VENDOR_SPEC(0x2b73, 0x0017), .driver_info = (unsigned long) &(const struct snd_usb_audio_quirk) { @@ -3580,6 +3606,26 @@ AU0828_DEVICE(0x2040, 0x7270, "Hauppauge", "HVR-950Q"), .rate_max = 48000, .nr_rates = 1, .rate_table = (unsigned int[]) { 48000 } + } + }, + { + .ifnum = 0, + .type = QUIRK_AUDIO_FIXED_ENDPOINT, + .data = &(const struct audioformat) { + .formats = SNDRV_PCM_FMTBIT_S24_3LE, + .channels = 8, // inputs + .iface = 0, + .altsetting = 1, + .altset_idx = 1, + .endpoint = 0x82, + .ep_attr = USB_ENDPOINT_XFER_ISOC| + USB_ENDPOINT_SYNC_ASYNC| + USB_ENDPOINT_USAGE_IMPLICIT_FB, + .rates = SNDRV_PCM_RATE_48000, + .rate_min = 48000, + .rate_max = 48000, + .nr_rates = 1, + .rate_table = (unsigned int[]) { 48000 } } }, { diff --git a/sound/usb/quirks.c b/sound/usb/quirks.c index abf99b814a0f..6a0be7e7f4fe 100644 --- a/sound/usb/quirks.c +++ b/sound/usb/quirks.c @@ -1493,6 +1493,7 @@ void snd_usb_set_format_quirk(struct snd_usb_substream *subs, set_format_emu_quirk(subs, fmt); break; case USB_ID(0x2b73, 0x000a): /* Pioneer DJ DJM-900NXS2 */ + case USB_ID(0x2b73, 0x0017): /* Pioneer DJ DJM-250MK2 */ pioneer_djm_set_format_quirk(subs); break; case USB_ID(0x534d, 0x2109): /* MacroSilicon MS2109 */ -- 2.20.1

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[PATCH v11 0/7] Qualcomm's lpass-hdmi ASoC driver to support audio over dp port
by Srinivasa Rao Mandadapu 14 Jan '21

14 Jan '21

These patches are to support audio over DP port on Qualcomm's SC7180 LPASS Asoc. It includes machine driver, cpu driver, platform driver updates for HDMI path support, device tree documention, lpass variant structure optimization and configuration changes. These patches depends on the DP patch series https://patchwork.kernel.org/project/dri-devel/list/?series=332029 https://lore.kernel.org/patchwork/project/lkml/list/?series=464856 changes since V10: -- Moved hdmi regmap functions from lpass-hdmi.c to lpass-cpu.c -- Moved QCOM_REGMAP_FIELD_ALLOC macro from lpass-hdmi.c to lpass.h changes since V9: -- Removed unused structures lpass_hdmi.h changes since V8: -- Removed redundant structure wrapper for reg map field memebrs -- Updated lpass_hdmi_regmap_volatile API with appropriate registers as true and others as false. changes since V7: -- Fixed typo errors -- Created Separate patch for buffer size change changes since V6: -- Removed compile time define flag, which used for enabling HDMI code, based on corresponding config param is included. -- Updated reg map alloc API with reg map bulk API. -- Removed unnecessary line splits changes since V5: -- Removed unused struct regmap *map in lpass_platform_alloc_hdmidmactl_fields. -- DMA alloc and free API signature change in lpass-apq8016.c, lpass-ipq806x.c -- Keeping API "irqreturn_t lpass_platform_hdmiif_irq" under ifdef macro Changes Since v4: -- Updated with single compatible node for both I2S and HDMI. Changes Since v3: -- Removed id in lpass variant structure and used snd_soc_dai_driver id. Changes Since v2: -- Audio buffer size(i.e. LPASS_PLATFORM_BUFFER_SIZE) in lpass-platform.c increased. Changes Since v1: -- Commit messages are updated -- Addressed Rob Herring review comments V Sujith Kumar Reddy (7): ASoC: Add sc7180-lpass binding header hdmi define ASoC: dt-bindings: Add dt binding for lpass hdmi Asoc:qcom:lpass-cpu:Update dts property read API Asoc: qcom: lpass:Update lpaif_dmactl members order ASoC: qcom: Add support for lpass hdmi driver Asoc: qcom: lpass-platform : Increase buffer size ASoC: qcom: sc7180: Add support for audio over DP .../devicetree/bindings/sound/qcom,lpass-cpu.yaml | 74 ++-- include/dt-bindings/sound/sc7180-lpass.h | 1 + sound/soc/qcom/Kconfig | 5 + sound/soc/qcom/Makefile | 2 + sound/soc/qcom/lpass-apq8016.c | 4 +- sound/soc/qcom/lpass-cpu.c | 249 ++++++++++++- sound/soc/qcom/lpass-hdmi.c | 258 ++++++++++++++ sound/soc/qcom/lpass-hdmi.h | 102 ++++++ sound/soc/qcom/lpass-ipq806x.c | 4 +- sound/soc/qcom/lpass-lpaif-reg.h | 49 ++- sound/soc/qcom/lpass-platform.c | 395 +++++++++++++++++---- sound/soc/qcom/lpass-sc7180.c | 116 +++++- sound/soc/qcom/lpass.h | 124 ++++++- 13 files changed, 1240 insertions(+), 143 deletions(-) create mode 100644 sound/soc/qcom/lpass-hdmi.c create mode 100644 sound/soc/qcom/lpass-hdmi.h -- Qualcomm India Private Limited, on behalf of Qualcomm Innovation Center, Inc., is a member of Code Aurora Forum, a Linux Foundation Collaborative Project.

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[PATCH 00/41] USB audio refactoring for better implicit feedback support
by Takashi Iwai 07 Jan '21

07 Jan '21

Hi, here is a largish patch set for USB-audio. Its main goal is to address the long-standing issues wrt the implicit feedback mode. With the current driver, when the implicit fb is used, the full duplex doesn't work properly unless you start both streams *very* carefully. This patch set tries to ease such the configuration mismatch and fix many other bugs. In short, with this patch set applied, USB-audio driver will try to restrict the hw_params to match with the already opened counter-part stream automatically. So individual aplay and arecord invocation should work now, as well as PulseAudio. Also, the patch set includes more fixes, e.g. the generic detection of the implicit feedback mode on UAC2/3, and the fix for the sample rate selection on UAC2/3, as well as a few more quirks to follow the new implicit fb model. The latest patches are available in topic/usb-audio-refactoring branch. I specially thank Keith Milner and Dylan Robinson for their time spent for lots of testing. Without their patient help, I couldn't finish those patches, as I myself don't own such devices. Takashi === Dylan Robinson (1): ALSA: usb-audio: Fix MOTU M-Series quirks Takashi Iwai (40): ALSA: usb-audio: Handle discrete rates properly in hw constraints ALSA: usb-audio: Don't call usb_set_interface() at trigger callback ALSA: usb-audio: Check valid altsetting at parsing rates for UAC2/3 ALSA: usb-audio: Check implicit feedback EP generically for UAC2 ALSA: usb-audio: Add snd_usb_get_endpoint() helper ALSA: usb-audio: Set and clear sync EP link properly ALSA: usb-audio: Improve some debug prints ALSA: usb-audio: Track implicit fb sync endpoint in audioformat list ALSA: usb-audio: Move snd_usb_autoresume() call out of setup_hw_info() ALSA: usb-audio: Add hw constraint for implicit fb sync ALSA: usb-audio: Simplify hw_params rules ALSA: usb-audio: Drop debug.h ALSA: usb-audio: Avoid doubly initialization for implicit fb ALSA: usb-audio: Create endpoint objects at parsing phase ALSA: usb-audio: Drop keep_interface flag again ALSA: usb-audio: Add snd_usb_get_host_interface() helper ALSA: usb-audio: Don't set altsetting before initializing sample rate ALSA: usb-audio: Pass snd_usb_audio object to quirk functions ALSA: usb-audio: Simplify snd_usb_init_sample_rate() arguments ALSA: usb-audio: Simplify snd_usb_init_pitch() arguments ALSA: usb-audio: Stop both endpoints properly at error ALSA: usb-audio: Set callbacks via snd_usb_endpoint_set_callback() ALSA: usb-audio: Always set up the parameters after resume ALSA: usb-audio: Fix EP matching for continuous rates ALSA: usb-audio: Refactor endpoint management ALSA: usb-audio: Fix possible stall of implicit fb packet ring-buffer ALSA: usb-audio: Constify audioformat pointer references ALSA: usb-audio: Use atomic_t for endpoint use_count ALSA: usb-audio: Refactoring endpoint URB deactivation ALSA: usb-audio: Drop unneeded snd_usb_substream fields ALSA: usb-audio: Unify the code for the next packet size calculation ALSA: usb-audio: Simplify rate_min/max and rates set up ALSA: usb-audio: Replace slave/master terms ALSA: usb-audio: Use unsigned char for iface and altsettings fields ALSA: usb-audio: Show sync endpoint information in proc outputs ALSA: usb-audio: Quirk for BOSS GT-001 ALSA: usb-audio: Factor out the implicit feedback quirk code ALSA: usb-audio: Add generic implicit fb parsing ALSA: usb-audio: Add implicit_fb module option ALSA: usb-audio: Fix quirks for other BOSS devices Documentation/sound/alsa-configuration.rst | 5 + sound/usb/Makefile | 1 + sound/usb/card.c | 14 +- sound/usb/card.h | 53 +- sound/usb/clock.c | 152 ++-- sound/usb/clock.h | 11 +- sound/usb/debug.h | 16 - sound/usb/endpoint.c | 943 +++++++++++++---------- sound/usb/endpoint.h | 57 +- sound/usb/format.c | 125 +++- sound/usb/helper.c | 10 + sound/usb/helper.h | 3 + sound/usb/implicit.c | 402 ++++++++++ sound/usb/implicit.h | 14 + sound/usb/mixer.c | 46 -- sound/usb/pcm.c | 1117 ++++++++++------------------ sound/usb/pcm.h | 7 +- sound/usb/proc.c | 35 +- sound/usb/quirks-table.h | 8 - sound/usb/quirks.c | 60 +- sound/usb/quirks.h | 10 +- sound/usb/stream.c | 24 +- sound/usb/usbaudio.h | 5 +- 23 files changed, 1696 insertions(+), 1422 deletions(-) delete mode 100644 sound/usb/debug.h create mode 100644 sound/usb/implicit.c create mode 100644 sound/usb/implicit.h -- 2.16.4

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[PATCH v4 0/2] Platform driver update to support playback recover after resume
by Srinivasa Rao Mandadapu 17 Dec '20

17 Dec '20

This patch set is to add support for playback recover after hard suspend and resume. It includes: 1. Reverting part of previous commit, which is for handling registers invalid state after hard suspend. 2. Adding pm ops in component driver and do regcache sync. Srinivasa Rao Mandadapu (2): Partially revert ASoC: qcom: Fix enabling BCLK and LRCLK in LPAIF invalid state ASoC: qcom: Add support for playback recover after resume sound/soc/qcom/lpass-cpu.c | 20 ++---------------- sound/soc/qcom/lpass-platform.c | 46 +++++++++++++++++++++++++++++++---------- 2 files changed, 37 insertions(+), 29 deletions(-) -- Qualcomm India Private Limited, on behalf of Qualcomm Innovation Center, Inc., is a member of Code Aurora Forum, a Linux Foundation Collaborative Project.

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[RFC PATCH 0/4] Enable DMA mode on Intel Keem Bay platform
by Michael Sit Wei Hong 14 Dec '20

14 Dec '20

v1: Initial patch version, to enable DMA mode on Intel Keembay platform by exposing some dmaengine api to work around DMA limitations at the client driver level. This patchset suggests an ALSA-only quirk, having other more generic means to deal with this limitation would be fine - we just wanted to have a discussion on preferred directions. The IPs used are not Intel-specific so sooner or later someone else will have similar limitations to work-around. Michael Sit Wei Hong (4): dt-bindings: sound: intel, keembay-i2s: Add info for device to use DMA ASoC: soc-generic-dmaengine-pcm: Add custom prepare and submit function ASoC: dmaengine_pcm: expose functions to header file for custom functions ASoC: Intel: KMB: Enable DMA transfer mode .../bindings/sound/intel,keembay-i2s.yaml | 14 ++ include/sound/dmaengine_pcm.h | 21 ++ sound/core/pcm_dmaengine.c | 46 ++-- sound/soc/intel/Kconfig | 2 + sound/soc/intel/keembay/kmb_platform.c | 202 ++++++++++++++++-- sound/soc/intel/keembay/kmb_platform.h | 9 + sound/soc/soc-generic-dmaengine-pcm.c | 8 +- 7 files changed, 267 insertions(+), 35 deletions(-) -- 2.17.1

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[RFC] ASoC: max98373: don't access volatile registers in bias level off
by Bard Liao 10 Dec '20

10 Dec '20

We will set regcache_cache_only true in suspend. As a result, regmap_read will return error when we try to read volatile registers in suspend. Besides, it doesn't make sense to read feedback data when codec is not active. To avoid the regmap_read error, this patch try to return a fake value when kcontrol _get is called in suspend. However, the question is what is the "correct" behavior when we try to read a volatile register when cache only is set. 1. return an error code to signal codec is not available as what we have now. 2. return a fake value like what this patch do. 3. wake-up the codec and always return a valid value. Signed-off-by: Bard Liao <yung-chuan.liao(a)linux.intel.com> --- sound/soc/codecs/max98373.c | 26 +++++++++++++++++++++++--- 1 file changed, 23 insertions(+), 3 deletions(-) diff --git a/sound/soc/codecs/max98373.c b/sound/soc/codecs/max98373.c index 929bb1798c43..07494e40c296 100644 --- a/sound/soc/codecs/max98373.c +++ b/sound/soc/codecs/max98373.c @@ -168,6 +168,23 @@ static SOC_ENUM_SINGLE_DECL(max98373_adc_samplerate_enum, MAX98373_R2051_MEAS_ADC_SAMPLING_RATE, 0, max98373_ADC_samplerate_text); +static int max98373_feedback_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); + + if (snd_soc_component_get_bias_level(component) == SND_SOC_BIAS_OFF) { + /* + * We can't get the feedback data when codec is off, set + * value = 0 and return 0 to avoid error. + */ + ucontrol->value.integer.value[0] = 0; + return 0; + } + + return snd_soc_put_volsw(kcontrol, ucontrol); +} + static const struct snd_kcontrol_new max98373_snd_controls[] = { SOC_SINGLE("Digital Vol Sel Switch", MAX98373_R203F_AMP_DSP_CFG, MAX98373_AMP_VOL_SEL_SHIFT, 1, 0), @@ -209,8 +226,10 @@ SOC_SINGLE("ADC PVDD FLT Switch", MAX98373_R2052_MEAS_ADC_PVDD_FLT_CFG, MAX98373_FLT_EN_SHIFT, 1, 0), SOC_SINGLE("ADC TEMP FLT Switch", MAX98373_R2053_MEAS_ADC_THERM_FLT_CFG, MAX98373_FLT_EN_SHIFT, 1, 0), -SOC_SINGLE("ADC PVDD", MAX98373_R2054_MEAS_ADC_PVDD_CH_READBACK, 0, 0xFF, 0), -SOC_SINGLE("ADC TEMP", MAX98373_R2055_MEAS_ADC_THERM_CH_READBACK, 0, 0xFF, 0), +SOC_SINGLE_EXT("ADC PVDD", MAX98373_R2054_MEAS_ADC_PVDD_CH_READBACK, 0, 0xFF, 0, + max98373_feedback_get, NULL), +SOC_SINGLE_EXT("ADC TEMP", MAX98373_R2055_MEAS_ADC_THERM_CH_READBACK, 0, 0xFF, 0, + max98373_feedback_get, NULL), SOC_SINGLE("ADC PVDD FLT Coeff", MAX98373_R2052_MEAS_ADC_PVDD_FLT_CFG, 0, 0x3, 0), SOC_SINGLE("ADC TEMP FLT Coeff", MAX98373_R2053_MEAS_ADC_THERM_FLT_CFG, @@ -226,7 +245,8 @@ SOC_SINGLE("BDE LVL1 Thresh", MAX98373_R2097_BDE_L1_THRESH, 0, 0xFF, 0), SOC_SINGLE("BDE LVL2 Thresh", MAX98373_R2098_BDE_L2_THRESH, 0, 0xFF, 0), SOC_SINGLE("BDE LVL3 Thresh", MAX98373_R2099_BDE_L3_THRESH, 0, 0xFF, 0), SOC_SINGLE("BDE LVL4 Thresh", MAX98373_R209A_BDE_L4_THRESH, 0, 0xFF, 0), -SOC_SINGLE("BDE Active Level", MAX98373_R20B6_BDE_CUR_STATE_READBACK, 0, 8, 0), +SOC_SINGLE_EXT("BDE Active Level", MAX98373_R20B6_BDE_CUR_STATE_READBACK, 0, 8, 0, + max98373_feedback_get, NULL), SOC_SINGLE("BDE Clip Mode Switch", MAX98373_R2092_BDE_CLIPPER_MODE, 0, 1, 0), SOC_SINGLE("BDE Thresh Hysteresis", MAX98373_R209B_BDE_THRESH_HYST, 0, 0xFF, 0), SOC_SINGLE("BDE Hold Time", MAX98373_R2090_BDE_LVL_HOLD, 0, 0xFF, 0), -- 2.17.1

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