sound/soc/intel/avs/boards/rt5663.c

Source file repositories/reference/linux-study-clean/sound/soc/intel/avs/boards/rt5663.c

File Facts

System
Linux kernel
Corpus path
sound/soc/intel/avs/boards/rt5663.c
Extension
.c
Size
7594 bytes
Lines
269
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

struct rt5663_private {
	struct snd_soc_jack jack;
};

static const struct snd_kcontrol_new card_controls[] = {
	SOC_DAPM_PIN_SWITCH("Headphone Jack"),
	SOC_DAPM_PIN_SWITCH("Headset Mic"),
};

static const struct snd_soc_dapm_widget card_widgets[] = {
	SND_SOC_DAPM_HP("Headphone Jack", NULL),
	SND_SOC_DAPM_MIC("Headset Mic", NULL),
};

static const struct snd_soc_dapm_route card_routes[] = {
	/* HP jack connectors */
	{ "Headphone Jack", NULL, "HPOL" },
	{ "Headphone Jack", NULL, "HPOR" },

	/* Mic jacks */
	{ "IN1P", NULL, "Headset Mic" },
	{ "IN1N", NULL, "Headset Mic" },
};

static const struct snd_soc_jack_pin card_headset_pins[] = {
	{
		.pin = "Headphone Jack",
		.mask = SND_JACK_HEADPHONE,
	},
	{
		.pin = "Headset Mic",
		.mask = SND_JACK_MICROPHONE,
	},
};

static int avs_rt5663_codec_init(struct snd_soc_pcm_runtime *runtime)
{
	struct snd_soc_card *card = runtime->card;
	struct rt5663_private *priv = snd_soc_card_get_drvdata(card);
	struct snd_soc_jack_pin *pins;
	struct snd_soc_jack *jack;
	int num_pins, ret;

	jack = &priv->jack;
	num_pins = ARRAY_SIZE(card_headset_pins);

	pins = devm_kmemdup_array(card->dev, card_headset_pins, num_pins,
				  sizeof(card_headset_pins[0]), GFP_KERNEL);
	if (!pins)
		return -ENOMEM;

	ret = snd_soc_card_jack_new_pins(card, "Headset Jack", SND_JACK_HEADSET | SND_JACK_BTN_0 |
					 SND_JACK_BTN_1 | SND_JACK_BTN_2 | SND_JACK_BTN_3, jack,
					 pins, num_pins);
	if (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_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);

	snd_soc_component_set_jack(snd_soc_rtd_to_codec(runtime, 0)->component, jack, NULL);

	return 0;
}

static void avs_rt5663_codec_exit(struct snd_soc_pcm_runtime *runtime)
{
	snd_soc_component_set_jack(snd_soc_rtd_to_codec(runtime, 0)->component, NULL, NULL);
}

static int
avs_rt5663_be_fixup(struct snd_soc_pcm_runtime *runtime, struct snd_pcm_hw_params *params)
{
	struct snd_interval *rate, *channels;
	struct snd_mask *fmt;

	rate = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE);
	channels = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS);
	fmt = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT);

	/* The ADSP will convert the FE rate to 48k, stereo */
	rate->min = rate->max = 48000;
	channels->min = channels->max = 2;

	/* set SSPN to 24 bit */
	snd_mask_none(fmt);
	snd_mask_set_format(fmt, SNDRV_PCM_FORMAT_S24_LE);

Annotation

Implementation Notes