LXR linux/sound/soc/sdw_utils/soc_sdw

   1// SPDX-License-Identifier: GPL-2.0-only
   2// This file incorporates work covered by the following copyright notice:
   3// Copyright (c) 2023 Intel Corporation
   4// Copyright (c) 2024 Advanced Micro Devices, Inc.
   5/*
   6 *  soc_sdw_cs42l42 - Helpers to handle CS42L42 from generic machine driver
   7 */
   8
   9#include <linux/device.h>
  10#include <linux/errno.h>
  11#include <linux/input.h>
  12#include <linux/soundwire/sdw.h>
  13#include <linux/soundwire/sdw_type.h>
  14#include <sound/control.h>
  15#include <sound/soc.h>
  16#include <sound/soc-acpi.h>
  17#include <sound/soc-dapm.h>
  18#include <sound/jack.h>
  19#include <sound/soc_sdw_utils.h>
  20
  21static const struct snd_soc_dapm_route cs42l42_map[] = {
  22        /* HP jack connectors - unknown if we have jack detection */
  23        {"Headphone", NULL, "cs42l42 HP"},
  24
  25        /* other jacks */
  26        {"cs42l42 HS", NULL, "Headset Mic"},
  27};
  28
  29static struct snd_soc_jack_pin cs42l42_jack_pins[] = {
  30        {
  31                .pin    = "Headphone",
  32                .mask   = SND_JACK_HEADPHONE,
  33        },
  34        {
  35                .pin    = "Headset Mic",
  36                .mask   = SND_JACK_MICROPHONE,
  37        },
  38};
  39
  40int asoc_sdw_cs42l42_rtd_init(struct snd_soc_pcm_runtime *rtd, struct snd_soc_dai *dai)
  41{
  42        struct snd_soc_card *card = rtd->card;
  43        struct asoc_sdw_mc_private *ctx = snd_soc_card_get_drvdata(card);
  44        struct snd_soc_component *component;
  45        struct snd_soc_jack *jack;
  46        int ret;
  47
  48        component = dai->component;
  49        card->components = devm_kasprintf(card->dev, GFP_KERNEL,
  50                                          "%s hs:cs42l42",
  51                                          card->components);
  52        if (!card->components)
  53                return -ENOMEM;
  54
  55        ret = snd_soc_dapm_add_routes(&card->dapm, cs42l42_map,
  56                                      ARRAY_SIZE(cs42l42_map));
  57
  58        if (ret) {
  59                dev_err(card->dev, "cs42l42 map addition failed: %d\n", ret);
  60                return ret;
  61        }
  62
  63        ret = snd_soc_card_jack_new_pins(rtd->card, "Headset Jack",
  64                                         SND_JACK_HEADSET | SND_JACK_BTN_0 |
  65                                         SND_JACK_BTN_1 | SND_JACK_BTN_2 |
  66                                         SND_JACK_BTN_3,
  67                                         &ctx->sdw_headset,
  68                                         cs42l42_jack_pins,
  69                                         ARRAY_SIZE(cs42l42_jack_pins));
  70        if (ret) {
  71                dev_err(rtd->card->dev, "Headset Jack creation failed: %d\n",
  72                        ret);
  73                return ret;
  74        }
  75
  76        jack = &ctx->sdw_headset;
  77
  78        snd_jack_set_key(jack->jack, SND_JACK_BTN_0, KEY_PLAYPAUSE);
  79        snd_jack_set_key(jack->jack, SND_JACK_BTN_1, KEY_VOLUMEUP);
  80        snd_jack_set_key(jack->jack, SND_JACK_BTN_2, KEY_VOLUMEDOWN);
  81        snd_jack_set_key(jack->jack, SND_JACK_BTN_3, KEY_VOICECOMMAND);
  82
  83        ret = snd_soc_component_set_jack(component, jack, NULL);
  84
  85        if (ret)
  86                dev_err(rtd->card->dev, "Headset Jack call-back failed: %d\n",
  87                        ret);
  88
  89        return ret;
  90}
  91EXPORT_SYMBOL_NS(asoc_sdw_cs42l42_rtd_init, "SND_SOC_SDW_UTILS");
  92