sound/soc/codecs/cs530x.c

Source file repositories/reference/linux-study-clean/sound/soc/codecs/cs530x.c

File Facts

System
Linux kernel
Corpus path
sound/soc/codecs/cs530x.c
Extension
.c
Size
39172 bytes
Lines
1344
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 (!cs530x->adc_pairs_count) {
			usleep_range(1000, 1100);
			return regmap_write(regmap, CS530X_IN_VOL_CTRL5,
					    CS530X_INOUT_VU);
		}
		break;
	case SND_SOC_DAPM_PRE_PMD:
		regmap_set_bits(regmap, CS530X_IN_VOL_CTRL1_0 +
				(w->shift * 2), CS530X_INOUT_MUTE);
		regmap_set_bits(regmap, CS530X_IN_VOL_CTRL1_0 +
				((w->shift + 1) * 2), CS530X_INOUT_MUTE);
		return regmap_write(regmap, CS530X_IN_VOL_CTRL5,
				    CS530X_INOUT_VU);
	default:
		return -EINVAL;
	}

	return 0;
}

static SOC_ENUM_SINGLE_DECL(cs530x_ramp_out_inc_enum, CS530X_OUT_RAMP_SUM,
			    CS530X_RAMP_RATE_INC_SHIFT,
			    cs530x_vol_ramp_text);

static SOC_ENUM_SINGLE_DECL(cs530x_ramp_out_dec_enum, CS530X_OUT_RAMP_SUM,
			    CS530X_RAMP_RATE_DEC_SHIFT,
			    cs530x_vol_ramp_text);

static const struct snd_kcontrol_new cs530x_out_1_to_2_controls[] = {
SOC_SINGLE_EXT_TLV("OUT1 Volume", CS530X_OUT_VOL_CTRL1_0, 0, 255, 1,
		    snd_soc_get_volsw, cs530x_put_volsw_vu, in_vol_tlv),
SOC_SINGLE_EXT_TLV("OUT2 Volume", CS530X_OUT_VOL_CTRL1_1, 0, 255, 1,
		    snd_soc_get_volsw, cs530x_put_volsw_vu, in_vol_tlv),

SOC_ENUM("OUT DEC Filter Select", cs530x_out_filter_enum),
SOC_ENUM("Output Ramp Up", cs530x_ramp_out_inc_enum),
SOC_ENUM("Output Ramp Down", cs530x_ramp_out_dec_enum),

SOC_SINGLE("DAC1 Invert Switch", CS530X_OUT_INV, CS530X_INOUT1_INV_SHIFT, 1, 0),
SOC_SINGLE("DAC2 Invert Switch", CS530X_OUT_INV, CS530X_INOUT2_INV_SHIFT, 1, 0),
};

static const struct snd_kcontrol_new cs530x_out_3_to_4_controls[] = {
SOC_SINGLE_EXT_TLV("OUT3 Volume", CS530X_OUT_VOL_CTRL2_0, 0, 255, 1,
		    snd_soc_get_volsw, cs530x_put_volsw_vu, in_vol_tlv),
SOC_SINGLE_EXT_TLV("OUT4 Volume", CS530X_OUT_VOL_CTRL2_1, 0, 255, 1,
		    snd_soc_get_volsw, cs530x_put_volsw_vu, in_vol_tlv),

SOC_SINGLE("DAC3 Invert Switch", CS530X_OUT_INV, CS530X_INOUT3_INV_SHIFT, 1, 0),
SOC_SINGLE("DAC4 Invert Switch", CS530X_OUT_INV, CS530X_INOUT4_INV_SHIFT, 1, 0),
};

static const struct snd_kcontrol_new cs530x_out_5_to_8_controls[] = {
SOC_SINGLE_EXT_TLV("OUT5 Volume", CS530X_OUT_VOL_CTRL3_0, 0, 255, 1,
		    snd_soc_get_volsw, cs530x_put_volsw_vu, in_vol_tlv),
SOC_SINGLE_EXT_TLV("OUT6 Volume", CS530X_OUT_VOL_CTRL3_1, 0, 255, 1,
		    snd_soc_get_volsw, cs530x_put_volsw_vu, in_vol_tlv),
SOC_SINGLE_EXT_TLV("OUT7 Volume", CS530X_OUT_VOL_CTRL4_0, 0, 255, 1,
		    snd_soc_get_volsw, cs530x_put_volsw_vu, in_vol_tlv),
SOC_SINGLE_EXT_TLV("OUT8 Volume", CS530X_OUT_VOL_CTRL4_1, 0, 255, 1,
		    snd_soc_get_volsw, cs530x_put_volsw_vu, in_vol_tlv),

SOC_SINGLE("DAC5 Invert Switch", CS530X_OUT_INV, CS530X_INOUT5_INV_SHIFT, 1, 0),
SOC_SINGLE("DAC6 Invert Switch", CS530X_OUT_INV, CS530X_INOUT6_INV_SHIFT, 1, 0),
SOC_SINGLE("DAC7 Invert Switch", CS530X_OUT_INV, CS530X_INOUT7_INV_SHIFT, 1, 0),
SOC_SINGLE("DAC8 Invert Switch", CS530X_OUT_INV, CS530X_INOUT8_INV_SHIFT, 1, 0),
};

static int cs530x_dac_event(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 cs530x_priv *cs530x = snd_soc_component_get_drvdata(component);
	struct regmap *regmap = cs530x->regmap;

	switch (event) {
	case SND_SOC_DAPM_PRE_PMU:
		cs530x->dac_pairs_count++;
		break;
	case SND_SOC_DAPM_POST_PMU:
		regmap_clear_bits(regmap, CS530X_OUT_VOL_CTRL1_0 +
				 (w->shift * 2), CS530X_INOUT_MUTE);
		regmap_clear_bits(regmap, CS530X_OUT_VOL_CTRL1_0 +
				 ((w->shift + 1) * 2), CS530X_INOUT_MUTE);

		cs530x->dac_pairs_count--;
		if (!cs530x->dac_pairs_count) {
			usleep_range(1000, 1100);
			return regmap_write(regmap, CS530X_OUT_VOL_CTRL5,
					    CS530X_INOUT_VU);

Annotation

Implementation Notes