LXR linux/sound/soc/intel/boards/sof_sdw

   1// SPDX-License-Identifier: GPL-2.0-only
   2// Copyright (c) 2020 Intel Corporation
   3
   4/*
   5 *  sof_sdw_rt5682 - Helpers to handle RT5682 from generic machine driver
   6 */
   7
   8#include <linux/device.h>
   9#include <linux/errno.h>
  10#include <linux/input.h>
  11#include <linux/soundwire/sdw.h>
  12#include <linux/soundwire/sdw_type.h>
  13#include <sound/control.h>
  14#include <sound/soc.h>
  15#include <sound/soc-acpi.h>
  16#include <sound/soc-dapm.h>
  17#include <sound/jack.h>
  18#include "sof_sdw_common.h"
  19
  20static const struct snd_soc_dapm_widget rt5682_widgets[] = {
  21        SND_SOC_DAPM_HP("Headphone", NULL),
  22        SND_SOC_DAPM_MIC("Headset Mic", NULL),
  23};
  24
  25static const struct snd_soc_dapm_route rt5682_map[] = {
  26        /*Headphones*/
  27        { "Headphone", NULL, "rt5682 HPOL" },
  28        { "Headphone", NULL, "rt5682 HPOR" },
  29        { "rt5682 IN1P", NULL, "Headset Mic" },
  30};
  31
  32static const struct snd_kcontrol_new rt5682_controls[] = {
  33        SOC_DAPM_PIN_SWITCH("Headphone"),
  34        SOC_DAPM_PIN_SWITCH("Headset Mic"),
  35};
  36
  37static struct snd_soc_jack_pin rt5682_jack_pins[] = {
  38        {
  39                .pin    = "Headphone",
  40                .mask   = SND_JACK_HEADPHONE,
  41        },
  42        {
  43                .pin    = "Headset Mic",
  44                .mask   = SND_JACK_MICROPHONE,
  45        },
  46};
  47
  48static int rt5682_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:rt5682",
  59                                          card->components);
  60        if (!card->components)
  61                return -ENOMEM;
  62
  63        ret = snd_soc_add_card_controls(card, rt5682_controls,
  64                                        ARRAY_SIZE(rt5682_controls));
  65        if (ret) {
  66                dev_err(card->dev, "rt5682 control addition failed: %d\n", ret);
  67                return ret;
  68        }
  69
  70        ret = snd_soc_dapm_new_controls(&card->dapm, rt5682_widgets,
  71                                        ARRAY_SIZE(rt5682_widgets));
  72        if (ret) {
  73                dev_err(card->dev, "rt5682 widgets addition failed: %d\n", ret);
  74                return ret;
  75        }
  76
  77        ret = snd_soc_dapm_add_routes(&card->dapm, rt5682_map,
  78                                      ARRAY_SIZE(rt5682_map));
  79
  80        if (ret) {
  81                dev_err(card->dev, "rt5682 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                                    rt5682_jack_pins,
  91                                    ARRAY_SIZE(rt5682_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
 107        if (ret)
 108                dev_err(rtd->card->dev, "Headset Jack call-back failed: %d\n",
 109                        ret);
 110
 111        return ret;
 112}
 113
 114int sof_sdw_rt5682_init(struct snd_soc_card *card,
 115                        const struct snd_soc_acpi_link_adr *link,
 116                        struct snd_soc_dai_link *dai_links,
 117                        struct sof_sdw_codec_info *info,
 118                        bool playback)
 119{
 120        /*
 121         * headset should be initialized once.
 122         * Do it with dai link for playback.
 123         */
 124        if (!playback)
 125                return 0;
 126
 127        dai_links->init = rt5682_rtd_init;
 128
 129        return 0;
 130}
 131