sound/soc/sdw_utils/soc_sdw_rt711.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 // This file incorporates work covered by the following copyright notice:
   3 // Copyright (c) 2020 Intel Corporation
   4 // Copyright (c) 2024 Advanced Micro Devices, Inc.
   5
   6 /*
   7  *  soc_sdw_rt711 - Helpers to handle RT711 from generic machine driver
   8  */
   9
  10 #include <linux/device.h>
  11 #include <linux/errno.h>
  12 #include <linux/input.h>
  13 #include <linux/soundwire/sdw.h>
  14 #include <linux/soundwire/sdw_type.h>
  15 #include <sound/control.h>
  16 #include <sound/soc.h>
  17 #include <sound/soc-acpi.h>
  18 #include <sound/soc-dapm.h>
  19 #include <sound/jack.h>
  20 #include <sound/soc_sdw_utils.h>
  21
  22 /*
  23  * Note this MUST be called before snd_soc_register_card(), so that the props
  24  * are in place before the codec component driver's probe function parses them.
  25  */
  26 static int rt711_add_codec_device_props(struct device *sdw_dev, unsigned long quirk)
  27 {
  28         struct property_entry props[SOC_SDW_MAX_NO_PROPS] = {};
  29         struct fwnode_handle *fwnode;
  30         int ret;
  31
  32         if (!SOC_SDW_JACK_JDSRC(quirk))
  33                 return 0;
  34         props[0] = PROPERTY_ENTRY_U32("realtek,jd-src", SOC_SDW_JACK_JDSRC(quirk));
  35
  36         fwnode = fwnode_create_software_node(props, NULL);
  37         if (IS_ERR(fwnode))
  38                 return PTR_ERR(fwnode);
  39
  40         ret = device_add_software_node(sdw_dev, to_software_node(fwnode));
  41
  42         fwnode_handle_put(fwnode);
  43
  44         return ret;
  45 }
  46
  47 static const struct snd_soc_dapm_route rt711_map[] = {
  48         /* Headphones */
  49         { "Headphone", NULL, "rt711 HP" },
  50         { "rt711 MIC2", NULL, "Headset Mic" },
  51 };
  52
  53 static struct snd_soc_jack_pin rt711_jack_pins[] = {
  54         {
  55                 .pin    = "Headphone",
  56                 .mask   = SND_JACK_HEADPHONE,
  57         },
  58         {
  59                 .pin    = "Headset Mic",
  60                 .mask   = SND_JACK_MICROPHONE,
  61         },
  62 };
  63
  64 int asoc_sdw_rt711_rtd_init(struct snd_soc_pcm_runtime *rtd, struct snd_soc_dai *dai)
  65 {
  66         struct snd_soc_card *card = rtd->card;
  67         struct asoc_sdw_mc_private *ctx = snd_soc_card_get_drvdata(card);
  68         struct snd_soc_component *component;
  69         struct snd_soc_jack *jack;
  70         int ret;
  71
  72         component = dai->component;
  73         card->components = devm_kasprintf(card->dev, GFP_KERNEL,
  74                                           "%s hs:rt711",
  75                                           card->components);
  76         if (!card->components)
  77                 return -ENOMEM;
  78
  79         ret = snd_soc_dapm_add_routes(&card->dapm, rt711_map,
  80                                       ARRAY_SIZE(rt711_map));
  81
  82         if (ret) {
  83                 dev_err(card->dev, "rt711 map addition failed: %d\n", ret);
  84                 return ret;
  85         }
  86
  87         ret = snd_soc_card_jack_new_pins(rtd->card, "Headset Jack",
  88                                          SND_JACK_HEADSET | SND_JACK_BTN_0 |
  89                                          SND_JACK_BTN_1 | SND_JACK_BTN_2 |
  90                                          SND_JACK_BTN_3,
  91                                          &ctx->sdw_headset,
  92                                          rt711_jack_pins,
  93                                          ARRAY_SIZE(rt711_jack_pins));
  94         if (ret) {
  95                 dev_err(rtd->card->dev, "Headset Jack creation failed: %d\n",
  96                         ret);
  97                 return ret;
  98         }
  99
 100         jack = &ctx->sdw_headset;
 101
 102         snd_jack_set_key(jack->jack, SND_JACK_BTN_0, KEY_PLAYPAUSE);
 103         snd_jack_set_key(jack->jack, SND_JACK_BTN_1, KEY_VOICECOMMAND);
 104         snd_jack_set_key(jack->jack, SND_JACK_BTN_2, KEY_VOLUMEUP);
 105         snd_jack_set_key(jack->jack, SND_JACK_BTN_3, KEY_VOLUMEDOWN);
 106
 107         ret = snd_soc_component_set_jack(component, jack, NULL);
 108
 109         if (ret)
 110                 dev_err(rtd->card->dev, "Headset Jack call-back failed: %d\n",
 111                         ret);
 112
 113         return ret;
 114 }
 115 EXPORT_SYMBOL_NS(asoc_sdw_rt711_rtd_init, "SND_SOC_SDW_UTILS");
 116
 117 int asoc_sdw_rt711_exit(struct snd_soc_card *card, struct snd_soc_dai_link *dai_link)
 118 {
 119         struct asoc_sdw_mc_private *ctx = snd_soc_card_get_drvdata(card);
 120
 121         if (!ctx->headset_codec_dev)
 122                 return 0;
 123
 124         device_remove_software_node(ctx->headset_codec_dev);
 125         put_device(ctx->headset_codec_dev);
 126
 127         return 0;
 128 }
 129 EXPORT_SYMBOL_NS(asoc_sdw_rt711_exit, "SND_SOC_SDW_UTILS");
 130
 131 int asoc_sdw_rt711_init(struct snd_soc_card *card,
 132                         struct snd_soc_dai_link *dai_links,
 133                         struct asoc_sdw_codec_info *info,
 134                         bool playback)
 135 {
 136         struct asoc_sdw_mc_private *ctx = snd_soc_card_get_drvdata(card);
 137         struct device *sdw_dev;
 138         int ret;
 139
 140         /*
 141          * headset should be initialized once.
 142          * Do it with dai link for playback.
 143          */
 144         if (!playback)
 145                 return 0;
 146
 147         sdw_dev = bus_find_device_by_name(&sdw_bus_type, NULL, dai_links->codecs[0].name);
 148         if (!sdw_dev)
 149                 return -EPROBE_DEFER;
 150
 151         ret = rt711_add_codec_device_props(sdw_dev, ctx->mc_quirk);
 152         if (ret < 0) {
 153                 put_device(sdw_dev);
 154                 return ret;
 155         }
 156         ctx->headset_codec_dev = sdw_dev;
 157
 158         return 0;
 159 }
 160 EXPORT_SYMBOL_NS(asoc_sdw_rt711_init, "SND_SOC_SDW_UTILS");