sound/soc/codecs/cs47l15.c

Source file repositories/reference/linux-study-clean/sound/soc/codecs/cs47l15.c

File Facts

System
Linux kernel
Corpus path
sound/soc/codecs/cs47l15.c
Extension
.c
Size
52070 bytes
Lines
1506
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 cs47l15 {
	struct madera_priv core;
	struct madera_fll fll[2];

	bool in1_lp_mode;
};

static const struct cs_dsp_region cs47l15_dsp1_regions[] = {
	{ .type = WMFW_ADSP2_PM, .base = 0x080000 },
	{ .type = WMFW_ADSP2_ZM, .base = 0x0e0000 },
	{ .type = WMFW_ADSP2_XM, .base = 0x0a0000 },
	{ .type = WMFW_ADSP2_YM, .base = 0x0c0000 },
};

static const char * const cs47l15_outdemux_texts[] = {
	"HPOUT",
	"EPOUT",
};

static SOC_ENUM_SINGLE_DECL(cs47l15_outdemux_enum, SND_SOC_NOPM, 0,
			    cs47l15_outdemux_texts);

static const struct snd_kcontrol_new cs47l15_outdemux =
	SOC_DAPM_ENUM_EXT("HPOUT1 Demux", cs47l15_outdemux_enum,
			  madera_out1_demux_get, madera_out1_demux_put);

static int cs47l15_adsp_power_ev(struct snd_soc_dapm_widget *w,
				 struct snd_kcontrol *kcontrol,
				 int event)
{
	struct snd_soc_component *component =
		snd_soc_dapm_to_component(w->dapm);
	struct cs47l15 *cs47l15 = snd_soc_component_get_drvdata(component);
	struct madera_priv *priv = &cs47l15->core;
	struct madera *madera = priv->madera;
	unsigned int freq;
	int ret;

	ret = regmap_read(madera->regmap, MADERA_DSP_CLOCK_2, &freq);
	if (ret != 0) {
		dev_err(madera->dev,
			"Failed to read MADERA_DSP_CLOCK_2: %d\n", ret);
		return ret;
	}

	switch (event) {
	case SND_SOC_DAPM_PRE_PMU:
		ret = madera_set_adsp_clk(&cs47l15->core, w->shift, freq);
		if (ret)
			return ret;
		break;
	default:
		break;
	}

	return wm_adsp_early_event(w, kcontrol, event);
}

#define CS47L15_NG_SRC(name, base) \
	SOC_SINGLE(name " NG HPOUT1L Switch",  base,  0, 1, 0), \
	SOC_SINGLE(name " NG HPOUT1R Switch",  base,  1, 1, 0), \
	SOC_SINGLE(name " NG SPKOUTL Switch",  base,  6, 1, 0), \
	SOC_SINGLE(name " NG SPKDAT1L Switch", base,  8, 1, 0), \
	SOC_SINGLE(name " NG SPKDAT1R Switch", base,  9, 1, 0)

static int cs47l15_in1_adc_get(struct snd_kcontrol *kcontrol,
			       struct snd_ctl_elem_value *ucontrol)
{
	struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
	struct cs47l15 *cs47l15 = snd_soc_component_get_drvdata(component);

	ucontrol->value.integer.value[0] = !!cs47l15->in1_lp_mode;

	return 0;
}

static int cs47l15_in1_adc_put(struct snd_kcontrol *kcontrol,
			       struct snd_ctl_elem_value *ucontrol)
{
	struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
	struct cs47l15 *cs47l15 = snd_soc_component_get_drvdata(component);

	if (!!ucontrol->value.integer.value[0] == cs47l15->in1_lp_mode)
		return 0;

	switch (ucontrol->value.integer.value[0]) {
	case 0:
		/* Set IN1 to normal mode */
		snd_soc_component_update_bits(component, MADERA_DMIC1L_CONTROL,
					      MADERA_IN1_OSR_MASK,

Annotation

Implementation Notes