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/control.h>
  12 #include <sound/soc.h>
  13 #include <sound/soc-acpi.h>
  14 #include <sound/soc-dapm.h>
  15 #include <sound/jack.h>
  16 #include "sof_sdw_common.h"
  17
  18 static const struct snd_soc_dapm_widget rt700_widgets[] = {
  19         SND_SOC_DAPM_HP("Headphones", NULL),
  20         SND_SOC_DAPM_MIC("AMIC", NULL),
  21         SND_SOC_DAPM_SPK("Speaker", NULL),
  22 };
  23
  24 static const struct snd_soc_dapm_route rt700_map[] = {
  25         /* Headphones */
  26         { "Headphones", NULL, "rt700 HP" },
  27         { "Speaker", NULL, "rt700 SPK" },
  28         { "rt700 MIC2", NULL, "AMIC" },
  29 };
  30
  31 static const struct snd_kcontrol_new rt700_controls[] = {
  32         SOC_DAPM_PIN_SWITCH("Headphones"),
  33         SOC_DAPM_PIN_SWITCH("AMIC"),
  34         SOC_DAPM_PIN_SWITCH("Speaker"),
  35 };
  36
  37 static struct snd_soc_jack_pin rt700_jack_pins[] = {
  38         {
  39                 .pin    = "Headphones",
  40                 .mask   = SND_JACK_HEADPHONE,
  41         },
  42         {
  43                 .pin    = "AMIC",
  44                 .mask   = SND_JACK_MICROPHONE,
  45         },
  46 };
  47
  48 static int rt700_rtd_init(struct snd_soc_pcm_runtime *rtd)
  49 {
  50         struct snd_soc_card *card = rtd->card;
  51         struct mc_private *ctx = snd_soc_card_get_drvdata(card);
  52         struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
  53         struct snd_soc_component *component = codec_dai->component;
  54         struct snd_soc_jack *jack;
  55         int ret;
  56
  57         card->components = devm_kasprintf(card->dev, GFP_KERNEL,
  58                                           "%s hs:rt700",
  59                                           card->components);
  60         if (!card->components)
  61                 return -ENOMEM;
  62
  63         ret = snd_soc_add_card_controls(card, rt700_controls,
  64                                         ARRAY_SIZE(rt700_controls));
  65         if (ret) {
  66                 dev_err(card->dev, "rt700 controls addition failed: %d\n", ret);
  67                 return ret;
  68         }
  69
  70         ret = snd_soc_dapm_new_controls(&card->dapm, rt700_widgets,
  71                                         ARRAY_SIZE(rt700_widgets));
  72         if (ret) {
  73                 dev_err(card->dev, "rt700 widgets addition failed: %d\n", ret);
  74                 return ret;
  75         }
  76
  77         ret = snd_soc_dapm_add_routes(&card->dapm, rt700_map,
  78                                       ARRAY_SIZE(rt700_map));
  79
  80         if (ret) {
  81                 dev_err(card->dev, "rt700 map addition failed: %d\n", ret);
  82                 return ret;
  83         }
  84
  85         ret = snd_soc_card_jack_new(rtd->card, "Headset Jack",
  86                                     SND_JACK_HEADSET | SND_JACK_BTN_0 |
  87                                     SND_JACK_BTN_1 | SND_JACK_BTN_2 |
  88                                     SND_JACK_BTN_3,
  89                                     &ctx->sdw_headset,
  90                                     rt700_jack_pins,
  91                                     ARRAY_SIZE(rt700_jack_pins));
  92         if (ret) {
  93                 dev_err(rtd->card->dev, "Headset Jack creation failed: %d\n",
  94                         ret);
  95                 return ret;
  96         }
  97
  98         jack = &ctx->sdw_headset;
  99
 100         snd_jack_set_key(jack->jack, SND_JACK_BTN_0, KEY_PLAYPAUSE);
 101         snd_jack_set_key(jack->jack, SND_JACK_BTN_1, KEY_VOICECOMMAND);
 102         snd_jack_set_key(jack->jack, SND_JACK_BTN_2, KEY_VOLUMEUP);
 103         snd_jack_set_key(jack->jack, SND_JACK_BTN_3, KEY_VOLUMEDOWN);
 104
 105         ret = snd_soc_component_set_jack(component, jack, NULL);
 106         if (ret)
 107                 dev_err(rtd->card->dev, "Headset Jack call-back failed: %d\n",
 108                         ret);
 109
 110         return ret;
 111 }
 112
 113 int sof_sdw_rt700_init(const struct snd_soc_acpi_link_adr *link,
 114                        struct snd_soc_dai_link *dai_links,
 115                        struct sof_sdw_codec_info *info,
 116                        bool playback)
 117 {
 118         /*
 119          * headset should be initialized once.
 120          * Do it with dai link for playback.
 121          */
 122         if (!playback)
 123                 return 0;
 124
 125         dai_links->init = rt700_rtd_init;
 126
 127         return 0;
 128 }