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Date:   Thu, 21 May 2020 16:43:07 +0200
From:   Łukasz Majczak <lma@...ihalf.com>
To:     Pierre-Louis Bossart <pierre-louis.bossart@...ux.intel.com>
Cc:     Liam Girdwood <liam.r.girdwood@...ux.intel.com>,
        Jie Yang <yang.jie@...ux.intel.com>,
        alsa-devel@...a-project.org, Radoslaw Biernacki <rad@...ihalf.com>,
        Ross Zwisler <zwisler@...gle.com>,
        linux-kernel@...r.kernel.org, Bob Brandt <brndt@...gle.com>,
        Marcin Wojtas <mw@...ihalf.com>,
        Alex Levin <levinale@...omium.org>
Subject: Re: [PATCH] ASoC: Intel: kbl_rt5663_rt5514_max98927: Split
 be_hw_params_fixup function

Pierre

Sorry, I didn't get it for the first time, you are suggesting to not
use DMIC01 as it is used by PCH-attached
dmics by other drivers.

Best regards,
Lukasz

czw., 21 maj 2020 o 16:36 Łukasz Majczak <lma@...ihalf.com> napisał(a):
>
> Yes, my bad
> it should be:
> +       { "codec1_in", NULL, "DMIC01 Rx" },
> +       { "DMIC01 Rx", NULL, "AIF1 Capture" },
>
> The whole idea of taking the mic for SSP0 definition is that each BE
> should have its own fixup. Before there was one fixup function, which
> checked inside which BE is connected to which FE and applied the
> proper fix, it was using the fact that "params" were part of
> snd_soc_dpcm. That has changed and now params are "orphaned" so each
> BE has to apply a specific fixup for itself.
>
> Best regards,
> Lukasz
>
>
> czw., 21 maj 2020 o 16:25 Pierre-Louis Bossart
> <pierre-louis.bossart@...ux.intel.com> napisał(a):
> >
> >
> >
> > On 5/21/20 8:47 AM, Lukasz Majczak wrote:
> > > Split be_hw_params_fixup function for different codecs as current common
> > > function, leads to crash while trying to get snd_soc_dpcm with
> > > container_of() macro in kabylake_ssp_fixup().
> > > The crash call path looks as below:
> > > soc_pcm_hw_params()
> > > snd_soc_dai_hw_params(codec_dai, substream, &codec_params);
> > > rtd->dai_link->be_hw_params_fixup(rtd, params)
> > > kabylake_ssp_fixup()
> > > In this case, codec_params is just a copy of an internal structure and is
> > > not embedded into struct snd_soc_dpcm thus we cannot use
> > > container_of() on it.
> > >
> > > Signed-off-by: Lukasz Majczak <lma@...ihalf.com>
> > > ---
> > >   .../intel/boards/kbl_rt5663_rt5514_max98927.c | 130 ++++++++++++------
> > >   1 file changed, 85 insertions(+), 45 deletions(-)
> > >
> > > diff --git a/sound/soc/intel/boards/kbl_rt5663_rt5514_max98927.c b/sound/soc/intel/boards/kbl_rt5663_rt5514_max98927.c
> > > index 1b1f8d7a4ea3..12a9983979e0 100644
> > > --- a/sound/soc/intel/boards/kbl_rt5663_rt5514_max98927.c
> > > +++ b/sound/soc/intel/boards/kbl_rt5663_rt5514_max98927.c
> > > @@ -171,8 +171,8 @@ static const struct snd_soc_dapm_route kabylake_map[] = {
> > >       { "hs_in", NULL, "ssp1 Rx" },
> > >       { "ssp1 Rx", NULL, "AIF Capture" },
> > >
> > > -     { "codec1_in", NULL, "ssp0 Rx" },
> > > -     { "ssp0 Rx", NULL, "AIF1 Capture" },
> > > +     { "codec1_in", NULL, "DMIC01 Rx" },
> > > +     { "DMIC01 Rx", NULL, "AIF1 Capture" },
> >
> > This doesn't seem right. This board uses DMICs attached to the codec so
> > we should not make references to routes that are used for PCH-attached
> > dmics in all other machine drivers:
> >
> >         { "dmic01_hifi", NULL, "DMIC01 Rx" },
> >         { "DMIC01 Rx", NULL, "DMIC AIF" },
> >
> > >
> > >       /* IV feedback path */
> > >       { "codec0_fb_in", NULL, "ssp0 Rx"},
> > > @@ -328,42 +328,52 @@ static const struct snd_soc_ops kabylake_rt5663_fe_ops = {
> > >       .startup = kbl_fe_startup,
> > >   };
> > >
> > > -static int kabylake_ssp_fixup(struct snd_soc_pcm_runtime *rtd,
> > > -                                     struct snd_pcm_hw_params *params)
> > > +static void kabylake_ssp_fixup(struct snd_soc_pcm_runtime *rtd,
> > > +     struct snd_pcm_hw_params *params, snd_pcm_format_t pcm_fmt)
> > >   {
> > >       struct snd_interval *rate = hw_param_interval(params,
> > >                       SNDRV_PCM_HW_PARAM_RATE);
> > > -     struct snd_interval *chan = hw_param_interval(params,
> > > +     struct snd_interval *channels = hw_param_interval(params,
> > >                       SNDRV_PCM_HW_PARAM_CHANNELS);
> > >       struct snd_mask *fmt = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT);
> > > -     struct snd_soc_dpcm *dpcm = container_of(
> > > -                     params, struct snd_soc_dpcm, hw_params);
> > > -     struct snd_soc_dai_link *fe_dai_link = dpcm->fe->dai_link;
> > > -     struct snd_soc_dai_link *be_dai_link = dpcm->be->dai_link;
> > >
> > >       /*
> > >        * The ADSP will convert the FE rate to 48k, stereo, 24 bit
> > >        */
> > > -     if (!strcmp(fe_dai_link->name, "Kbl Audio Port") ||
> > > -         !strcmp(fe_dai_link->name, "Kbl Audio Headset Playback") ||
> > > -         !strcmp(fe_dai_link->name, "Kbl Audio Capture Port")) {
> > > -             rate->min = rate->max = 48000;
> > > -             chan->min = chan->max = 2;
> > > -             snd_mask_none(fmt);
> > > -             snd_mask_set_format(fmt, SNDRV_PCM_FORMAT_S24_LE);
> > > -     } else if (!strcmp(fe_dai_link->name, "Kbl Audio DMIC cap")) {
> > > +
> > > +     rate->min = rate->max = 48000;
> > > +     channels->min = channels->max = 2;
> > > +
> > > +     snd_mask_none(fmt);
> > > +     snd_mask_set_format(fmt, pcm_fmt);
> > > +}
> > > +
> > > +static int kabylake_ssp0_fixup(struct snd_soc_pcm_runtime *rtd,
> > > +     struct snd_pcm_hw_params *params)
> > > +{
> > > +     kabylake_ssp_fixup(rtd, params, SNDRV_PCM_FORMAT_S16_LE);
> > > +     return 0;
> > > +}
> > > +
> > > +static int kabylake_ssp1_fixup(struct snd_soc_pcm_runtime *rtd,
> > > +     struct snd_pcm_hw_params *params)
> > > +{
> > > +
> > > +     kabylake_ssp_fixup(rtd, params, SNDRV_PCM_FORMAT_S24_LE);
> > > +     return 0;
> > > +}
> > > +
> > > +static int kabylake_dmic_fixup(struct snd_soc_pcm_runtime *rtd,
> > > +                                     struct snd_pcm_hw_params *params)
> > > +{
> > > +     struct snd_interval *channels = hw_param_interval(params,
> > > +                     SNDRV_PCM_HW_PARAM_CHANNELS);
> > > +
> > >               if (params_channels(params) == 2 ||
> > >                               DMIC_CH(dmic_constraints) == 2)
> > > -                     chan->min = chan->max = 2;
> > > +                     channels->min = channels->max = 2;
> > >               else
> > > -                     chan->min = chan->max = 4;
> > > -     }
> > > -     /*
> > > -      * The speaker on the SSP0 supports S16_LE and not S24_LE.
> > > -      * thus changing the mask here
> > > -      */
> > > -     if (!strcmp(be_dai_link->name, "SSP0-Codec"))
> > > -             snd_mask_set_format(fmt, SNDRV_PCM_FORMAT_S16_LE);
> > > +                     channels->min = channels->max = 4;
> > >
> > >       return 0;
> > >   }
> > > @@ -400,20 +410,6 @@ static int kabylake_ssp0_hw_params(struct snd_pcm_substream *substream,
> > >       int ret = 0, j;
> > >
> > >       for_each_rtd_codec_dais(rtd, j, codec_dai) {
> > > -             if (!strcmp(codec_dai->component->name, RT5514_DEV_NAME)) {
> > > -                     ret = snd_soc_dai_set_tdm_slot(codec_dai, 0xF, 0, 8, 16);
> > > -                     if (ret < 0) {
> > > -                             dev_err(rtd->dev, "set TDM slot err:%d\n", ret);
> > > -                             return ret;
> > > -                     }
> > > -
> > > -                     ret = snd_soc_dai_set_sysclk(codec_dai,
> > > -                             RT5514_SCLK_S_MCLK, 24576000, SND_SOC_CLOCK_IN);
> > > -                     if (ret < 0) {
> > > -                             dev_err(rtd->dev, "set sysclk err: %d\n", ret);
> > > -                             return ret;
> > > -                     }
> > > -             }
> > >               if (!strcmp(codec_dai->component->name, MAXIM_DEV0_NAME)) {
> > >                       ret = snd_soc_dai_set_tdm_slot(codec_dai, 0x30, 3, 8, 16);
> > >                       if (ret < 0) {
> > > @@ -433,10 +429,37 @@ static int kabylake_ssp0_hw_params(struct snd_pcm_substream *substream,
> > >       return ret;
> > >   }
> > >
> > > +static int kabylake_dmic01_hw_params(struct snd_pcm_substream *substream,
> > > +     struct snd_pcm_hw_params *params)
> > > +{
> > > +     struct snd_soc_pcm_runtime *rtd = substream->private_data;
> > > +     int ret = 0;
> > > +
> > > +     ret = snd_soc_dai_set_tdm_slot(rtd->codec_dai, 0xF, 0, 8, 16);
> > > +     if (ret < 0) {
> > > +             dev_err(rtd->dev, "set TDM slot err:%d\n", ret);
> > > +             return ret;
> > > +     }
> > > +
> > > +     ret = snd_soc_dai_set_sysclk(rtd->codec_dai,
> > > +             RT5514_SCLK_S_MCLK, 24576000, SND_SOC_CLOCK_IN);
> > > +     if (ret < 0) {
> > > +             dev_err(rtd->dev, "set sysclk err: %d\n", ret);
> > > +             return ret;
> > > +     }
> > > +
> > > +     return ret;
> > > +}
> > > +
> > >   static struct snd_soc_ops kabylake_ssp0_ops = {
> > >       .hw_params = kabylake_ssp0_hw_params,
> > >   };
> > >
> > > +static struct snd_soc_ops kabylake_dmic01_ops = {
> > > +     .hw_params = kabylake_dmic01_hw_params,
> > > +};
> > > +
> > > +
> > >   static const unsigned int channels_dmic[] = {
> > >       4,
> > >   };
> > > @@ -507,14 +530,19 @@ SND_SOC_DAILINK_DEF(ssp0_pin,
> > >   SND_SOC_DAILINK_DEF(ssp0_codec,
> > >       DAILINK_COMP_ARRAY(
> > >       /* Left */ COMP_CODEC(MAXIM_DEV0_NAME, KBL_MAXIM_CODEC_DAI),
> > > -     /* Right */COMP_CODEC(MAXIM_DEV1_NAME, KBL_MAXIM_CODEC_DAI),
> > > -     /* dmic */ COMP_CODEC(RT5514_DEV_NAME, KBL_REALTEK_DMIC_CODEC_DAI)));
> > > +     /* Right */COMP_CODEC(MAXIM_DEV1_NAME, KBL_MAXIM_CODEC_DAI)));
> > >
> > >   SND_SOC_DAILINK_DEF(ssp1_pin,
> > >       DAILINK_COMP_ARRAY(COMP_CPU("SSP1 Pin")));
> > >   SND_SOC_DAILINK_DEF(ssp1_codec,
> > >       DAILINK_COMP_ARRAY(COMP_CODEC(RT5663_DEV_NAME, KBL_REALTEK_CODEC_DAI)));
> > >
> > > +SND_SOC_DAILINK_DEF(dmic01_pin,
> > > +     DAILINK_COMP_ARRAY(COMP_CPU("DMIC01 Pin")));
> > > +SND_SOC_DAILINK_DEF(dmic01_codec,
> > > +     DAILINK_COMP_ARRAY(
> > > +             COMP_CODEC(RT5514_DEV_NAME, KBL_REALTEK_DMIC_CODEC_DAI)));
> > > +
> > >   SND_SOC_DAILINK_DEF(idisp1_pin,
> > >       DAILINK_COMP_ARRAY(COMP_CPU("iDisp1 Pin")));
> > >   SND_SOC_DAILINK_DEF(idisp1_codec,
> > > @@ -618,9 +646,8 @@ static struct snd_soc_dai_link kabylake_dais[] = {
> > >                       SND_SOC_DAIFMT_NB_NF |
> > >                       SND_SOC_DAIFMT_CBS_CFS,
> > >               .ignore_pmdown_time = 1,
> > > -             .be_hw_params_fixup = kabylake_ssp_fixup,
> > > +             .be_hw_params_fixup = kabylake_ssp0_fixup,
> > >               .dpcm_playback = 1,
> > > -             .dpcm_capture = 1,
> > >               .ops = &kabylake_ssp0_ops,
> > >               SND_SOC_DAILINK_REG(ssp0_pin, ssp0_codec, platform),
> > >       },
> > > @@ -632,12 +659,25 @@ static struct snd_soc_dai_link kabylake_dais[] = {
> > >               .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
> > >                       SND_SOC_DAIFMT_CBS_CFS,
> > >               .ignore_pmdown_time = 1,
> > > -             .be_hw_params_fixup = kabylake_ssp_fixup,
> > > +             .be_hw_params_fixup = kabylake_ssp1_fixup,
> > >               .ops = &kabylake_rt5663_ops,
> > >               .dpcm_playback = 1,
> > >               .dpcm_capture = 1,
> > >               SND_SOC_DAILINK_REG(ssp1_pin, ssp1_codec, platform),
> > >       },
> > > +     {
> > > +             .name = "dmic01",
> > > +             .id = 2,
> > > +             .no_pcm = 1,
> > > +             .dai_fmt = SND_SOC_DAIFMT_DSP_B |
> > > +                     SND_SOC_DAIFMT_NB_NF |
> > > +                     SND_SOC_DAIFMT_CBS_CFS,
> > > +             .ignore_pmdown_time = 1,
> > > +             .be_hw_params_fixup = kabylake_dmic_fixup,
> > > +             .dpcm_capture = 1,
> > > +             .ops = &kabylake_dmic01_ops,
> > > +             SND_SOC_DAILINK_REG(dmic01_pin, dmic01_codec, platform),
> > > +     },
> > >       {
> > >               .name = "iDisp1",
> > >               .id = 3,
> > >
> > > base-commit: a4f6fc98cd2fa1774bcaeb248c67156ef9402a56
> > >

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