sound/soc/intel/boards/sof_sdw_rt711.c

   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  */
  24 static int rt711_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_JACK_JDSRC(sof_sdw_quirk))
  31                 return 0;
  32         props[0] = PROPERTY_ENTRY_U32("realtek,jd-src", SOF_JACK_JDSRC(sof_sdw_quirk));
  33
  34         fwnode = fwnode_create_software_node(props, NULL);
  35         if (IS_ERR(fwnode))
  36                 return PTR_ERR(fwnode);
  37
  38         ret = device_add_software_node(sdw_dev, to_software_node(fwnode));
  39
  40         fwnode_handle_put(fwnode);
  41
  42         return ret;
  43 }
  44
  45 static 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
  50 static const struct snd_soc_dapm_route rt711_map[] = {
  51         /* Headphones */
  52         { "Headphone", NULL, "rt711 HP" },
  53         { "rt711 MIC2", NULL, "Headset Mic" },
  54 };
  55
  56 static const struct snd_kcontrol_new rt711_controls[] = {
  57         SOC_DAPM_PIN_SWITCH("Headphone"),
  58         SOC_DAPM_PIN_SWITCH("Headset Mic"),
  59 };
  60
  61 static 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
  72 static 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 = snd_soc_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_pins(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
 138 int sof_sdw_rt711_exit(struct snd_soc_card *card, struct snd_soc_dai_link *dai_link)
 139 {
 140         struct mc_private *ctx = snd_soc_card_get_drvdata(card);
 141
 142         if (!ctx->headset_codec_dev)
 143                 return 0;
 144
 145         device_remove_software_node(ctx->headset_codec_dev);
 146         put_device(ctx->headset_codec_dev);
 147
 148         return 0;
 149 }
 150
 151 int sof_sdw_rt711_init(struct snd_soc_card *card,
 152                        const struct snd_soc_acpi_link_adr *link,
 153                        struct snd_soc_dai_link *dai_links,
 154                        struct sof_sdw_codec_info *info,
 155                        bool playback)
 156 {
 157         struct mc_private *ctx = snd_soc_card_get_drvdata(card);
 158         struct device *sdw_dev;
 159         int ret;
 160
 161         /*
 162          * headset should be initialized once.
 163          * Do it with dai link for playback.
 164          */
 165         if (!playback)
 166                 return 0;
 167
 168         sdw_dev = bus_find_device_by_name(&sdw_bus_type, NULL, dai_links->codecs[0].name);
 169         if (!sdw_dev)
 170                 return -EPROBE_DEFER;
 171
 172         ret = rt711_add_codec_device_props(sdw_dev);
 173         if (ret < 0) {
 174                 put_device(sdw_dev);
 175                 return ret;
 176         }
 177         ctx->headset_codec_dev = sdw_dev;
 178
 179         dai_links->init = rt711_rtd_init;
 180
 181         return 0;
 182 }