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_rt711 - Helpers to handle RT711 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
  20/*
  21 * Note this MUST be called before snd_soc_register_card(), so that the props
  22 * are in place before the codec component driver's probe function parses them.
  23 */
  24static int rt711_add_codec_device_props(const char *sdw_dev_name)
  25{
  26        struct property_entry props[MAX_NO_PROPS] = {};
  27        struct device *sdw_dev;
  28        int ret;
  29
  30        sdw_dev = bus_find_device_by_name(&sdw_bus_type, NULL, sdw_dev_name);
  31        if (!sdw_dev)
  32                return -EPROBE_DEFER;
  33
  34        if (SOF_RT711_JDSRC(sof_sdw_quirk)) {
  35                props[0] = PROPERTY_ENTRY_U32("realtek,jd-src",
  36                                              SOF_RT711_JDSRC(sof_sdw_quirk));
  37        }
  38
  39        ret = device_add_properties(sdw_dev, props);
  40        put_device(sdw_dev);
  41
  42        return ret;
  43}
  44
  45static const struct snd_soc_dapm_widget rt711_widgets[] = {
  46        SND_SOC_DAPM_HP("Headphone", NULL),
  47        SND_SOC_DAPM_MIC("Headset Mic", NULL),
  48};
  49
  50static const struct snd_soc_dapm_route rt711_map[] = {
  51        /* Headphones */
  52        { "Headphone", NULL, "rt711 HP" },
  53        { "rt711 MIC2", NULL, "Headset Mic" },
  54};
  55
  56static const struct snd_kcontrol_new rt711_controls[] = {
  57        SOC_DAPM_PIN_SWITCH("Headphone"),
  58        SOC_DAPM_PIN_SWITCH("Headset Mic"),
  59};
  60
  61static struct snd_soc_jack_pin rt711_jack_pins[] = {
  62        {
  63                .pin    = "Headphone",
  64                .mask   = SND_JACK_HEADPHONE,
  65        },
  66        {
  67                .pin    = "Headset Mic",
  68                .mask   = SND_JACK_MICROPHONE,
  69        },
  70};
  71
  72static int rt711_rtd_init(struct snd_soc_pcm_runtime *rtd)
  73{
  74        struct snd_soc_card *card = rtd->card;
  75        struct mc_private *ctx = snd_soc_card_get_drvdata(card);
  76        struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
  77        struct snd_soc_component *component = codec_dai->component;
  78        struct snd_soc_jack *jack;
  79        int ret;
  80
  81        card->components = devm_kasprintf(card->dev, GFP_KERNEL,
  82                                          "%s hs:rt711",
  83                                          card->components);
  84        if (!card->components)
  85                return -ENOMEM;
  86
  87        ret = snd_soc_add_card_controls(card, rt711_controls,
  88                                        ARRAY_SIZE(rt711_controls));
  89        if (ret) {
  90                dev_err(card->dev, "rt711 controls addition failed: %d\n", ret);
  91                return ret;
  92        }
  93
  94        ret = snd_soc_dapm_new_controls(&card->dapm, rt711_widgets,
  95                                        ARRAY_SIZE(rt711_widgets));
  96        if (ret) {
  97                dev_err(card->dev, "rt711 widgets addition failed: %d\n", ret);
  98                return ret;
  99        }
 100
 101        ret = snd_soc_dapm_add_routes(&card->dapm, rt711_map,
 102                                      ARRAY_SIZE(rt711_map));
 103
 104        if (ret) {
 105                dev_err(card->dev, "rt711 map addition failed: %d\n", ret);
 106                return ret;
 107        }
 108
 109        ret = snd_soc_card_jack_new(rtd->card, "Headset Jack",
 110                                    SND_JACK_HEADSET | SND_JACK_BTN_0 |
 111                                    SND_JACK_BTN_1 | SND_JACK_BTN_2 |
 112                                    SND_JACK_BTN_3,
 113                                    &ctx->sdw_headset,
 114                                    rt711_jack_pins,
 115                                    ARRAY_SIZE(rt711_jack_pins));
 116        if (ret) {
 117                dev_err(rtd->card->dev, "Headset Jack creation failed: %d\n",
 118                        ret);
 119                return ret;
 120        }
 121
 122        jack = &ctx->sdw_headset;
 123
 124        snd_jack_set_key(jack->jack, SND_JACK_BTN_0, KEY_PLAYPAUSE);
 125        snd_jack_set_key(jack->jack, SND_JACK_BTN_1, KEY_VOICECOMMAND);
 126        snd_jack_set_key(jack->jack, SND_JACK_BTN_2, KEY_VOLUMEUP);
 127        snd_jack_set_key(jack->jack, SND_JACK_BTN_3, KEY_VOLUMEDOWN);
 128
 129        ret = snd_soc_component_set_jack(component, jack, NULL);
 130
 131        if (ret)
 132                dev_err(rtd->card->dev, "Headset Jack call-back failed: %d\n",
 133                        ret);
 134
 135        return ret;
 136}
 137
 138int sof_sdw_rt711_exit(struct device *dev, struct snd_soc_dai_link *dai_link)
 139{
 140        struct device *sdw_dev;
 141
 142        sdw_dev = bus_find_device_by_name(&sdw_bus_type, NULL,
 143                                          dai_link->codecs[0].name);
 144        if (!sdw_dev)
 145                return -EINVAL;
 146
 147        device_remove_properties(sdw_dev);
 148        put_device(sdw_dev);
 149
 150        return 0;
 151}
 152
 153int sof_sdw_rt711_init(const struct snd_soc_acpi_link_adr *link,
 154                       struct snd_soc_dai_link *dai_links,
 155                       struct sof_sdw_codec_info *info,
 156                       bool playback)
 157{
 158        int ret;
 159
 160        /*
 161         * headset should be initialized once.
 162         * Do it with dai link for playback.
 163         */
 164        if (!playback)
 165                return 0;
 166
 167        ret = rt711_add_codec_device_props(dai_links->codecs[0].name);
 168        if (ret < 0)
 169                return ret;
 170
 171        dai_links->init = rt711_rtd_init;
 172
 173        return 0;
 174}
 175