sound/soc/intel/boards/sof_sdw_rt711_sdca.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 // Copyright (c) 2020 Intel Corporation
   3
   4 /*
   5  *  sof_sdw_rt711_sdca - Helpers to handle RT711-SDCA 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  */
  24 static int rt711_sdca_add_codec_device_props(struct device *sdw_dev)
  25 {
  26         struct property_entry props[MAX_NO_PROPS] = {};
  27         struct fwnode_handle *fwnode;
  28         int ret;
  29
  30         if (!SOF_RT711_JDSRC(sof_sdw_quirk))
  31                 return 0;
  32
  33         props[0] = PROPERTY_ENTRY_U32("realtek,jd-src", SOF_RT711_JDSRC(sof_sdw_quirk));
  34
  35         fwnode = fwnode_create_software_node(props, NULL);
  36         if (IS_ERR(fwnode))
  37                 return PTR_ERR(fwnode);
  38
  39         ret = device_add_software_node(sdw_dev, to_software_node(fwnode));
  40
  41         fwnode_handle_put(fwnode);
  42
  43         return ret;
  44 }
  45
  46 static const struct snd_soc_dapm_widget rt711_sdca_widgets[] = {
  47         SND_SOC_DAPM_HP("Headphone", NULL),
  48         SND_SOC_DAPM_MIC("Headset Mic", NULL),
  49 };
  50
  51 static const struct snd_soc_dapm_route rt711_sdca_map[] = {
  52         /* Headphones */
  53         { "Headphone", NULL, "rt711 HP" },
  54         { "rt711 MIC2", NULL, "Headset Mic" },
  55 };
  56
  57 static const struct snd_kcontrol_new rt711_sdca_controls[] = {
  58         SOC_DAPM_PIN_SWITCH("Headphone"),
  59         SOC_DAPM_PIN_SWITCH("Headset Mic"),
  60 };
  61
  62 static struct snd_soc_jack_pin rt711_sdca_jack_pins[] = {
  63         {
  64                 .pin    = "Headphone",
  65                 .mask   = SND_JACK_HEADPHONE,
  66         },
  67         {
  68                 .pin    = "Headset Mic",
  69                 .mask   = SND_JACK_MICROPHONE,
  70         },
  71 };
  72
  73 static int rt711_sdca_rtd_init(struct snd_soc_pcm_runtime *rtd)
  74 {
  75         struct snd_soc_card *card = rtd->card;
  76         struct mc_private *ctx = snd_soc_card_get_drvdata(card);
  77         struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
  78         struct snd_soc_component *component = codec_dai->component;
  79         struct snd_soc_jack *jack;
  80         int ret;
  81
  82         card->components = devm_kasprintf(card->dev, GFP_KERNEL,
  83                                           "%s hs:rt711-sdca",
  84                                           card->components);
  85         if (!card->components)
  86                 return -ENOMEM;
  87
  88         ret = snd_soc_add_card_controls(card, rt711_sdca_controls,
  89                                         ARRAY_SIZE(rt711_sdca_controls));
  90         if (ret) {
  91                 dev_err(card->dev, "rt711-sdca controls addition failed: %d\n", ret);
  92                 return ret;
  93         }
  94
  95         ret = snd_soc_dapm_new_controls(&card->dapm, rt711_sdca_widgets,
  96                                         ARRAY_SIZE(rt711_sdca_widgets));
  97         if (ret) {
  98                 dev_err(card->dev, "rt711-sdca widgets addition failed: %d\n", ret);
  99                 return ret;
 100         }
 101
 102         ret = snd_soc_dapm_add_routes(&card->dapm, rt711_sdca_map,
 103                                       ARRAY_SIZE(rt711_sdca_map));
 104
 105         if (ret) {
 106                 dev_err(card->dev, "rt711-sdca map addition failed: %d\n", ret);
 107                 return ret;
 108         }
 109
 110         ret = snd_soc_card_jack_new_pins(rtd->card, "Headset Jack",
 111                                          SND_JACK_HEADSET | SND_JACK_BTN_0 |
 112                                          SND_JACK_BTN_1 | SND_JACK_BTN_2 |
 113                                          SND_JACK_BTN_3,
 114                                          &ctx->sdw_headset,
 115                                          rt711_sdca_jack_pins,
 116                                          ARRAY_SIZE(rt711_sdca_jack_pins));
 117         if (ret) {
 118                 dev_err(rtd->card->dev, "Headset Jack creation failed: %d\n",
 119                         ret);
 120                 return ret;
 121         }
 122
 123         jack = &ctx->sdw_headset;
 124
 125         snd_jack_set_key(jack->jack, SND_JACK_BTN_0, KEY_PLAYPAUSE);
 126         snd_jack_set_key(jack->jack, SND_JACK_BTN_1, KEY_VOICECOMMAND);
 127         snd_jack_set_key(jack->jack, SND_JACK_BTN_2, KEY_VOLUMEUP);
 128         snd_jack_set_key(jack->jack, SND_JACK_BTN_3, KEY_VOLUMEDOWN);
 129
 130         ret = snd_soc_component_set_jack(component, jack, NULL);
 131
 132         if (ret)
 133                 dev_err(rtd->card->dev, "Headset Jack call-back failed: %d\n",
 134                         ret);
 135
 136         return ret;
 137 }
 138
 139 int sof_sdw_rt711_sdca_exit(struct snd_soc_card *card, struct snd_soc_dai_link *dai_link)
 140 {
 141         struct mc_private *ctx = snd_soc_card_get_drvdata(card);
 142
 143         device_remove_software_node(ctx->headset_codec_dev);
 144         put_device(ctx->headset_codec_dev);
 145
 146         return 0;
 147 }
 148
 149 int sof_sdw_rt711_sdca_init(struct snd_soc_card *card,
 150                             const struct snd_soc_acpi_link_adr *link,
 151                             struct snd_soc_dai_link *dai_links,
 152                             struct sof_sdw_codec_info *info,
 153                             bool playback)
 154 {
 155         struct mc_private *ctx = snd_soc_card_get_drvdata(card);
 156         struct device *sdw_dev;
 157         int ret;
 158
 159         /*
 160          * headset should be initialized once.
 161          * Do it with dai link for playback.
 162          */
 163         if (!playback)
 164                 return 0;
 165
 166         sdw_dev = bus_find_device_by_name(&sdw_bus_type, NULL, dai_links->codecs[0].name);
 167         if (!sdw_dev)
 168                 return -EPROBE_DEFER;
 169
 170         ret = rt711_sdca_add_codec_device_props(sdw_dev);
 171         if (ret < 0) {
 172                 put_device(sdw_dev);
 173                 return ret;
 174         }
 175         ctx->headset_codec_dev = sdw_dev;
 176
 177         dai_links->init = rt711_sdca_rtd_init;
 178
 179         return 0;
 180 }