sound/soc/intel/boards/sof_sdw_rt700.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 // Copyright (c) 2020 Intel Corporation
   3
   4 /*
   5  *  sof_sdw_rt700 - Helpers to handle RT700 from generic machine driver
   6  */
   7
   8 #include <linux/device.h>
   9 #include <linux/errno.h>
  10 #include <linux/input.h>
  11 #include <sound/soc.h>
  12 #include <sound/soc-acpi.h>
  13 #include <sound/jack.h>
  14 #include "sof_sdw_common.h"
  15
  16 static const struct snd_soc_dapm_widget rt700_widgets[] = {
  17         SND_SOC_DAPM_HP("Headphones", NULL),
  18         SND_SOC_DAPM_MIC("AMIC", NULL),
  19         SND_SOC_DAPM_SPK("Speaker", NULL),
  20 };
  21
  22 static const struct snd_soc_dapm_route rt700_map[] = {
  23         /* Headphones */
  24         { "Headphones", NULL, "HP" },
  25         { "Speaker", NULL, "SPK" },
  26         { "MIC2", NULL, "AMIC" },
  27 };
  28
  29 static const struct snd_kcontrol_new rt700_controls[] = {
  30         SOC_DAPM_PIN_SWITCH("Headphones"),
  31         SOC_DAPM_PIN_SWITCH("AMIC"),
  32         SOC_DAPM_PIN_SWITCH("Speaker"),
  33 };
  34
  35 static struct snd_soc_jack_pin rt700_jack_pins[] = {
  36         {
  37                 .pin    = "Headphones",
  38                 .mask   = SND_JACK_HEADPHONE,
  39         },
  40         {
  41                 .pin    = "AMIC",
  42                 .mask   = SND_JACK_MICROPHONE,
  43         },
  44 };
  45
  46 static int rt700_rtd_init(struct snd_soc_pcm_runtime *rtd)
  47 {
  48         struct snd_soc_card *card = rtd->card;
  49         struct mc_private *ctx = snd_soc_card_get_drvdata(card);
  50         struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
  51         struct snd_soc_component *component = codec_dai->component;
  52         struct snd_soc_jack *jack;
  53         int ret;
  54
  55         card->components = devm_kasprintf(card->dev, GFP_KERNEL,
  56                                           "%s hs:rt700",
  57                                           card->components);
  58         if (!card->components)
  59                 return -ENOMEM;
  60
  61         ret = snd_soc_add_card_controls(card, rt700_controls,
  62                                         ARRAY_SIZE(rt700_controls));
  63         if (ret) {
  64                 dev_err(card->dev, "rt700 controls addition failed: %d\n", ret);
  65                 return ret;
  66         }
  67
  68         ret = snd_soc_dapm_new_controls(&card->dapm, rt700_widgets,
  69                                         ARRAY_SIZE(rt700_widgets));
  70         if (ret) {
  71                 dev_err(card->dev, "rt700 widgets addition failed: %d\n", ret);
  72                 return ret;
  73         }
  74
  75         ret = snd_soc_dapm_add_routes(&card->dapm, rt700_map,
  76                                       ARRAY_SIZE(rt700_map));
  77
  78         if (ret) {
  79                 dev_err(card->dev, "rt700 map addition failed: %d\n", ret);
  80                 return ret;
  81         }
  82
  83         ret = snd_soc_card_jack_new(rtd->card, "Headset Jack",
  84                                     SND_JACK_HEADSET | SND_JACK_BTN_0 |
  85                                     SND_JACK_BTN_1 | SND_JACK_BTN_2 |
  86                                     SND_JACK_BTN_3,
  87                                     &ctx->sdw_headset,
  88                                     rt700_jack_pins,
  89                                     ARRAY_SIZE(rt700_jack_pins));
  90         if (ret) {
  91                 dev_err(rtd->card->dev, "Headset Jack creation failed: %d\n",
  92                         ret);
  93                 return ret;
  94         }
  95
  96         jack = &ctx->sdw_headset;
  97
  98         snd_jack_set_key(jack->jack, SND_JACK_BTN_0, KEY_PLAYPAUSE);
  99         snd_jack_set_key(jack->jack, SND_JACK_BTN_1, KEY_VOICECOMMAND);
 100         snd_jack_set_key(jack->jack, SND_JACK_BTN_2, KEY_VOLUMEUP);
 101         snd_jack_set_key(jack->jack, SND_JACK_BTN_3, KEY_VOLUMEDOWN);
 102
 103         ret = snd_soc_component_set_jack(component, jack, NULL);
 104         if (ret)
 105                 dev_err(rtd->card->dev, "Headset Jack call-back failed: %d\n",
 106                         ret);
 107
 108         return ret;
 109 }
 110
 111 int sof_sdw_rt700_init(const struct snd_soc_acpi_link_adr *link,
 112                        struct snd_soc_dai_link *dai_links,
 113                        struct sof_sdw_codec_info *info,
 114                        bool playback)
 115 {
 116         /*
 117          * headset should be initialized once.
 118          * Do it with dai link for playback.
 119          */
 120         if (!playback)
 121                 return 0;
 122
 123         dai_links->init = rt700_rtd_init;
 124
 125         return 0;
 126 }