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(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
  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 = 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
 138 int 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
 153 int 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 }