sound/soc/mediatek/mt8189/mt8189-nau8825.c

Source file repositories/reference/linux-study-clean/sound/soc/mediatek/mt8189/mt8189-nau8825.c

File Facts

System
Linux kernel
Corpus path
sound/soc/mediatek/mt8189/mt8189-nau8825.c
Extension
.c
Size
33912 bytes
Lines
1181
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 < 0) {
			dev_err(codec_dai->dev, "set component sysclk fail: %d\n",
				ret);
			return ret;
		}

		ret = snd_soc_dai_set_sysclk(codec_dai, CS35L41_CLKID_SCLK,
					     clk_freq, SND_SOC_CLOCK_IN);
		if (ret < 0) {
			dev_err(codec_dai->dev, "set sysclk fail: %d\n",
				ret);
			return ret;
		}

		ret = snd_soc_dai_set_channel_map(codec_dai, 0, NULL,
						  1, &rx_slot[i]);
		if (ret < 0) {
			dev_err(codec_dai->dev, "set channel map fail: %d\n",
				ret);
			return ret;
		}
	}

	return snd_soc_dai_set_sysclk(cpu_dai,
				      0, mclk_fs, SND_SOC_CLOCK_OUT);
}

static const struct snd_soc_ops mt8189_cs35l41_i2s_ops = {
	.startup = mt8189_common_i2s_startup,
	.hw_params = mt8189_cs35l41_i2s_hw_params,
};

static int mt8189_es8326_hw_params(struct snd_pcm_substream *substream,
				   struct snd_pcm_hw_params *params)
{
	struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
	struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0);
	struct snd_soc_dai *codec_dai = snd_soc_rtd_to_codec(rtd, 0);
	unsigned int rate = params_rate(params);
	int ret;

	/* Configure MCLK for codec */
	ret = snd_soc_dai_set_sysclk(codec_dai, 0, rate * 256, SND_SOC_CLOCK_IN);
	if (ret < 0) {
		dev_err(codec_dai->dev, "can't set MCLK %d\n", ret);
		return ret;
	}

	/* Configure MCLK for cpu */
	return snd_soc_dai_set_sysclk(cpu_dai, 0, rate * 256, SND_SOC_CLOCK_OUT);
}

static const struct snd_soc_ops mt8189_es8326_ops = {
	.startup = mt8189_common_i2s_startup,
	.hw_params = mt8189_es8326_hw_params,
};

static int mt8189_dumb_amp_init(struct snd_soc_pcm_runtime *rtd)
{
	struct snd_soc_card *card = rtd->card;
	struct snd_soc_dapm_context *dapm = snd_soc_card_to_dapm(card);
	int ret;

	ret = snd_soc_dapm_new_controls(dapm, mt8189_dumb_spk_widgets,
					ARRAY_SIZE(mt8189_dumb_spk_widgets));
	if (ret) {
		dev_err(rtd->dev, "unable to add Dumb Speaker dapm, ret %d\n", ret);
		return ret;
	}

	ret = snd_soc_add_card_controls(card, mt8189_dumb_spk_controls,
					ARRAY_SIZE(mt8189_dumb_spk_controls));
	if (ret) {
		dev_err(rtd->dev, "unable to add Dumb card controls, ret %d\n", ret);
		return ret;
	}

	return 0;
}

static int mt8189_dptx_codec_init(struct snd_soc_pcm_runtime *rtd)
{
	struct mtk_soc_card_data *soc_card_data = snd_soc_card_get_drvdata(rtd->card);
	struct snd_soc_jack *jack = &soc_card_data->card_data->jacks[MT8189_JACK_DP];
	struct snd_soc_component *component = snd_soc_rtd_to_codec(rtd, 0)->component;
	int ret;

	ret = snd_soc_card_jack_new_pins(rtd->card, "DP Jack", SND_JACK_LINEOUT,
					 jack, mt8189_dp_jack_pins,
					 ARRAY_SIZE(mt8189_dp_jack_pins));

Annotation

Implementation Notes