sound/soc/intel/boards/sof_da7219.c

Source file repositories/reference/linux-study-clean/sound/soc/intel/boards/sof_da7219.c

File Facts

System
Linux kernel
Corpus path
sound/soc/intel/boards/sof_da7219.c
Extension
.c
Size
12718 bytes
Lines
491
Domain
Driver Families
Bucket
sound/soc
Inferred role
Driver Families: implementation source
Status
source 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 (ret) {
			dev_err(rtd->dev, "fail to set pll, ret %d\n", ret);
			return ret;
		}

		ctx->da7219.pll_bypass = true;
	}

	/*
	 * Headset buttons map to the google Reference headset.
	 * These can be configured by userspace.
	 */
	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 | SND_JACK_LINEOUT,
					 jack, jack_pins, ARRAY_SIZE(jack_pins));
	if (ret) {
		dev_err(rtd->dev, "Headset Jack creation failed: %d\n", ret);
		return ret;
	}

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

	ret = snd_soc_component_set_jack(component, jack, NULL);
	if (ret) {
		dev_err(rtd->dev, "fail to set component jack, ret %d\n", ret);
		return ret;
	}

	return ret;
}

static void da7219_codec_exit(struct snd_soc_pcm_runtime *rtd)
{
	struct snd_soc_component *component = snd_soc_rtd_to_codec(rtd, 0)->component;

	snd_soc_component_set_jack(component, NULL, NULL);
}

static int card_late_probe(struct snd_soc_card *card)
{
	struct sof_card_private *ctx = snd_soc_card_get_drvdata(card);
	struct snd_soc_dapm_context *dapm = snd_soc_card_to_dapm(card);
	int err;

	if (ctx->amp_type == CODEC_MAX98373) {
		/* Disable Left and Right Spk pin after boot */
		snd_soc_dapm_disable_pin(dapm, "Left Spk");
		snd_soc_dapm_disable_pin(dapm, "Right Spk");
		err = snd_soc_dapm_sync(dapm);
		if (err < 0)
			return err;
	}

	return sof_intel_board_card_late_probe(card);
}

static struct snd_soc_card card_da7219 = {
	.name = "da7219", /* the sof- prefix is added by the core */
	.owner = THIS_MODULE,
	.controls = controls,
	.num_controls = ARRAY_SIZE(controls),
	.dapm_widgets = widgets,
	.num_dapm_widgets = ARRAY_SIZE(widgets),
	.dapm_routes = audio_map,
	.num_dapm_routes = ARRAY_SIZE(audio_map),
	.fully_routed = true,
	.late_probe = card_late_probe,
};

static struct snd_soc_dai_link_component da7219_component[] = {
	{
		.name = "i2c-DLGS7219:00",
		.dai_name = DIALOG_CODEC_DAI,
	}
};

static int
sof_card_dai_links_create(struct device *dev, struct snd_soc_card *card,
			  struct sof_card_private *ctx)
{
	int ret;

	ret = sof_intel_board_set_dai_link(dev, card, ctx);
	if (ret)
		return ret;

Annotation

Implementation Notes