sound/soc/sdw_utils/soc_sdw_rt_sdca_jack_common.c

Source file repositories/reference/linux-study-clean/sound/soc/sdw_utils/soc_sdw_rt_sdca_jack_common.c

File Facts

System
Linux kernel
Corpus path
sound/soc/sdw_utils/soc_sdw_rt_sdca_jack_common.c
Extension
.c
Size
6442 bytes
Lines
224
Domain
Driver Families
Bucket
sound/soc
Inferred role
Driver Families: exported/initcall integration point
Status
integration implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

Dependency Surface

Detected Declarations

Annotated Snippet

if (strstr(component->name_prefix, need_sdca_suffix[i])) {
			/* Add -sdca suffix for existing UCMs */
			card->components = devm_kasprintf(card->dev, GFP_KERNEL,
							  "%s-sdca", card->components);
			if (!card->components)
				return -ENOMEM;
			break;
		}
	}

	if (strstr(component->name_prefix, "rt711")) {
		ret = snd_soc_dapm_add_routes(dapm, rt711_sdca_map,
					      ARRAY_SIZE(rt711_sdca_map));
	} else if (strstr(component->name_prefix, "rt712")) {
		ret = snd_soc_dapm_add_routes(dapm, rt712_sdca_map,
					      ARRAY_SIZE(rt712_sdca_map));
	} else if (strstr(component->name_prefix, "rt713")) {
		ret = snd_soc_dapm_add_routes(dapm, rt713_sdca_map,
					      ARRAY_SIZE(rt713_sdca_map));
	} else if (strstr(component->name_prefix, "rt721")) {
		ret = snd_soc_dapm_add_routes(dapm, rt721_sdca_map,
					      ARRAY_SIZE(rt721_sdca_map));
	} else if (strstr(component->name_prefix, "rt722")) {
		ret = snd_soc_dapm_add_routes(dapm, rt722_sdca_map,
					      ARRAY_SIZE(rt722_sdca_map));
	} else {
		dev_err(card->dev, "%s is not supported\n", component->name_prefix);
		return -EINVAL;
	}

	if (ret) {
		dev_err(card->dev, "rt sdca jack map addition failed: %d\n", ret);
		return ret;
	}

	ret = snd_soc_card_jack_new_pins(rtd->card, "Headset Jack",
					 SND_JACK_HEADSET | SND_JACK_BTN_0 |
					 SND_JACK_BTN_1 | SND_JACK_BTN_2 |
					 SND_JACK_BTN_3,
					 &ctx->sdw_headset,
					 rt_sdca_jack_pins,
					 ARRAY_SIZE(rt_sdca_jack_pins));
	if (ret) {
		dev_err(rtd->card->dev, "Headset Jack creation failed: %d\n",
			ret);
		return ret;
	}

	jack = &ctx->sdw_headset;

	snd_jack_set_key(jack->jack, SND_JACK_BTN_0, KEY_PLAYPAUSE);
	snd_jack_set_key(jack->jack, SND_JACK_BTN_1, KEY_VOICECOMMAND);
	snd_jack_set_key(jack->jack, SND_JACK_BTN_2, KEY_VOLUMEUP);
	snd_jack_set_key(jack->jack, SND_JACK_BTN_3, KEY_VOLUMEDOWN);

	ret = snd_soc_component_set_jack(component, jack, NULL);

	if (ret)
		dev_err(rtd->card->dev, "Headset Jack call-back failed: %d\n",
			ret);

	return ret;
}
EXPORT_SYMBOL_NS(asoc_sdw_rt_sdca_jack_rtd_init, "SND_SOC_SDW_UTILS");

int asoc_sdw_rt_sdca_jack_exit(struct snd_soc_card *card, struct snd_soc_dai_link *dai_link)
{
	struct asoc_sdw_mc_private *ctx = snd_soc_card_get_drvdata(card);

	if (!ctx->headset_codec_dev)
		return 0;

	if (!SOC_SDW_JACK_JDSRC(ctx->mc_quirk))
		return 0;

	device_remove_software_node(ctx->headset_codec_dev);
	put_device(ctx->headset_codec_dev);
	ctx->headset_codec_dev = NULL;

	return 0;
}
EXPORT_SYMBOL_NS(asoc_sdw_rt_sdca_jack_exit, "SND_SOC_SDW_UTILS");

int asoc_sdw_rt_sdca_jack_init(struct snd_soc_card *card,
			       struct snd_soc_dai_link *dai_links,
			       struct asoc_sdw_codec_info *info,
			       bool playback)
{
	struct asoc_sdw_mc_private *ctx = snd_soc_card_get_drvdata(card);
	struct device *sdw_dev;

Annotation

Implementation Notes