git.openwrt.org Git - openwrt/staging/linusw.git/blob

   1 From 4d2eaa194d77588fa42567ba174c3c14c5798027 Mon Sep 17 00:00:00 2001
   2 From: j-schambacher <joerg@hifiberry.com>
   3 Date: Thu, 12 Sep 2024 17:42:13 +0200
   4 Subject: [PATCH 1264/1350] ASoC: add HiFiBerry ADC8x 8-channel ADC to
   5  simple-card-driver
   6
   7 Definitions for the 8 channel ADC card. The card uses only
   8 HW-controlled devices which allows the uses of the 'dummy-dai'.
   9 It will run only on a PI5 as it requires the designware I2S0 module.
  10
  11 The necessary output lanes I2S0_DI[0..3] are claimed from within the
  12 DT overlay.
  13
  14 Signed-off-by: j-schambacher <joerg@hifiberry.com>
  15 ---
  16  sound/soc/bcm/Kconfig                |  7 ++++++
  17  sound/soc/bcm/rpi-simple-soundcard.c | 37 ++++++++++++++++++++++++++++
  18  2 files changed, 44 insertions(+)
  19
  20 --- a/sound/soc/bcm/Kconfig
  21 +++ b/sound/soc/bcm/Kconfig
  22 @@ -47,6 +47,13 @@ config SND_BCM2708_SOC_HIFIBERRY_ADC
  23           Say Y or M if you want to add support for HifiBerry ADC.
  24           Use this module for HiFiBerry's ADC-only sound cards
  25
  26 +config SND_BCM2708_SOC_HIFIBERRY_ADC8X
  27 +        tristate "Support for HifiBerry ADC8X"
  28 +        select SND_RPI_SIMPLE_SOUNDCARD
  29 +        help
  30 +         Say Y or M if you want to add support for HifiBerry ADC8X.
  31 +         Note: ADC8X only works on PI5
  32 +
  33  config SND_BCM2708_SOC_HIFIBERRY_DAC
  34          tristate "Support for HifiBerry DAC and DAC8X"
  35          select SND_SOC_PCM5102A
  36 --- a/sound/soc/bcm/rpi-simple-soundcard.c
  37 +++ b/sound/soc/bcm/rpi-simple-soundcard.c
  38 @@ -254,6 +254,41 @@ static struct snd_rpi_simple_drvdata drv
  39         .dai       = snd_hifiberrydacplusdsp_soundcard_dai,
  40  };
  41
  42 +SND_SOC_DAILINK_DEFS(hifiberry_adc,
  43 +       DAILINK_COMP_ARRAY(COMP_EMPTY()),
  44 +       DAILINK_COMP_ARRAY(COMP_CODEC("snd-soc-dummy", "snd-soc-dummy-dai")),
  45 +       DAILINK_COMP_ARRAY(COMP_EMPTY()));
  46 +
  47 +static int hifiberry_adc8x_init(struct snd_soc_pcm_runtime *rtd)
  48 +{
  49 +       struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
  50 +
  51 +       /* set limits of 8 channels and 192ksps sample rate
  52 +        */
  53 +       codec_dai->driver->capture.channels_max = 8;
  54 +       codec_dai->driver->capture.rates = SNDRV_PCM_RATE_8000_192000;
  55 +
  56 +       return 0;
  57 +}
  58 +
  59 +static struct snd_soc_dai_link snd_hifiberry_adc8x_dai[] = {
  60 +       {
  61 +               .name           = "HifiBerry ADC8x",
  62 +               .stream_name    = "HifiBerry ADC8x HiFi",
  63 +               .dai_fmt        = SND_SOC_DAIFMT_I2S |
  64 +                                       SND_SOC_DAIFMT_NB_NF |
  65 +                                       SND_SOC_DAIFMT_CBS_CFS,
  66 +               .init           = hifiberry_adc8x_init,
  67 +               SND_SOC_DAILINK_REG(hifiberry_adc),
  68 +       },
  69 +};
  70 +
  71 +static struct snd_rpi_simple_drvdata drvdata_hifiberry_adc8x = {
  72 +       .card_name = "snd_rpi_hifiberry_adc8x",
  73 +       .dai       = snd_hifiberry_adc8x_dai,
  74 +       .fixed_bclk_ratio = 64,
  75 +};
  76 +
  77  SND_SOC_DAILINK_DEFS(hifiberry_amp,
  78         DAILINK_COMP_ARRAY(COMP_EMPTY()),
  79         DAILINK_COMP_ARRAY(COMP_CODEC("tas5713.1-001b", "tas5713-hifi")),
  80 @@ -445,6 +480,8 @@ static const struct of_device_id snd_rpi
  81                 .data = (void *) &drvdata_googlevoicehat },
  82         { .compatible = "hifiberrydacplusdsp,hifiberrydacplusdsp-soundcard",
  83                 .data = (void *) &drvdata_hifiberrydacplusdsp },
  84 +       { .compatible = "hifiberry,hifiberry-adc8x",
  85 +               .data = (void *) &drvdata_hifiberry_adc8x },
  86         { .compatible = "hifiberry,hifiberry-amp",
  87                 .data = (void *) &drvdata_hifiberry_amp },
  88         { .compatible = "hifiberry,hifiberry-amp3",