1 // SPDX-License-Identifier: GPL-2.0-only
3  * es8316.c -- es8316 ALSA SoC audio driver
6  * Authors: David Yang <yangxiaohua@everest-semi.com>,
21 #include <sound/soc-dapm.h>
51 static const SNDRV_CTL_TLVD_DECLARE_DB_SCALE(dac_vol_tlv, -9600, 50, 1);
52 static const SNDRV_CTL_TLVD_DECLARE_DB_SCALE(adc_vol_tlv, -9600, 50, 1);
53 static const SNDRV_CTL_TLVD_DECLARE_DB_SCALE(alc_max_gain_tlv, -650, 150, 0);
54 static const SNDRV_CTL_TLVD_DECLARE_DB_SCALE(alc_min_gain_tlv, -1200, 150, 0);
55 static const SNDRV_CTL_TLVD_DECLARE_DB_SCALE(alc_target_tlv, -1650, 150, 0);
57 	0, 4, TLV_DB_SCALE_ITEM(-1200, 150, 0),
58 	8, 11, TLV_DB_SCALE_ITEM(-450, 150, 0),
62 	0, 0, TLV_DB_SCALE_ITEM(-350, 0, 0),
71 	0, 0, TLV_DB_SCALE_ITEM(-4800, 0, 0),
72 	1, 3, TLV_DB_SCALE_ITEM(-2400, 1200, 0),
105 	SOC_SINGLE("Mic Boost Switch", ES8316_ADC_D2SEPGA, 0, 1, 0),
132 		"lin1-rin1",
133 		"lin2-rin2",
134 		"lin1-rin1 with 20db Boost",
135 		"lin2-rin2 with 20db Boost"
162 	"lin1-rin1",
163 	"lin2-rin2",
164 	"lin-rin with Boost",
165 	"lin-rin with Boost and PGA"
190 /* DAC data source mux */
205 	SND_SOC_DAPM_SUPPLY("Bias", ES8316_SYS_PDN, 3, 1, NULL, 0),
207 	SND_SOC_DAPM_SUPPLY("Mic Bias", ES8316_SYS_PDN, 5, 1, NULL, 0),
218 	SND_SOC_DAPM_SUPPLY("ADC bias", ES8316_SYS_PDN, 2, 1, NULL, 0),
223 	SND_SOC_DAPM_MUX("Digital Mic Mux", SND_SOC_NOPM, 0, 0,
232 	SND_SOC_DAPM_MUX("DAC Source Mux", SND_SOC_NOPM, 0, 0,
285 	{"MIC1", NULL, "Mic Bias"},
286 	{"MIC2", NULL, "Mic Bias"},
287 	{"MIC1", NULL, "Bias"},
288 	{"MIC2", NULL, "Bias"},
292 	{"Differential Mux", "lin1-rin1", "MIC1"},
293 	{"Differential Mux", "lin2-rin2", "MIC2"},
298 	{"Mono ADC", NULL, "ADC bias"},
306 	{"Digital Mic Mux", "dmic disable", "Mono ADC"},
308 	{"I2S OUT", NULL, "Digital Mic Mux"},
311 	{"DAC Source Mux", "LDATA TO LDAC, RDATA TO RDAC", "I2S IN"},
319 	{"Left DAC", NULL, "DAC Source Mux"},
320 	{"Right DAC", NULL, "DAC Source Mux"},
322 	{"Left Headphone Mux", "lin-rin with Boost and PGA", "Line input PGA"},
323 	{"Right Headphone Mux", "lin-rin with Boost and PGA", "Line input PGA"},
352 	{"Headphone Out", NULL, "Bias"},
361 	struct snd_soc_component *component = codec_dai->component;  in es8316_set_dai_sysclk()
366 	es8316->sysclk = freq;  in es8316_set_dai_sysclk()
369 		es8316->sysclk_constraints.list = NULL;  in es8316_set_dai_sysclk()
370 		es8316->sysclk_constraints.count = 0;  in es8316_set_dai_sysclk()
375 	ret = clk_set_rate(es8316->mclk, freq);  in es8316_set_dai_sysclk()
386 			es8316->allowed_rates[count++] = freq / ratio;  in es8316_set_dai_sysclk()
389 	es8316->sysclk_constraints.list = es8316->allowed_rates;  in es8316_set_dai_sysclk()
390 	es8316->sysclk_constraints.count = count;  in es8316_set_dai_sysclk()
398 	struct snd_soc_component *component = codec_dai->component;  in es8316_set_dai_fmt()
405 		dev_err(component->dev, "Codec driver only supports slave mode\n");  in es8316_set_dai_fmt()
406 		return -EINVAL;  in es8316_set_dai_fmt()
410 		dev_err(component->dev, "Codec driver only supports I2S format\n");  in es8316_set_dai_fmt()
411 		return -EINVAL;  in es8316_set_dai_fmt()
429 		return -EINVAL;  in es8316_set_dai_fmt()
449 	struct snd_soc_component *component = dai->component;  in es8316_pcm_startup()
452 	if (es8316->sysclk_constraints.list)  in es8316_pcm_startup()
453 		snd_pcm_hw_constraint_list(substream->runtime, 0,  in es8316_pcm_startup()
455 					   &es8316->sysclk_constraints);  in es8316_pcm_startup()
464 	struct snd_soc_component *component = dai->component;  in es8316_pcm_hw_params()
473 		if (es8316->sysclk % ratio != 0)  in es8316_pcm_hw_params()
475 		if (es8316->sysclk / ratio == params_rate(params))  in es8316_pcm_hw_params()
479 		return -EINVAL;  in es8316_pcm_hw_params()
495 		return -EINVAL;  in es8316_pcm_hw_params()
507 	snd_soc_component_update_bits(dai->component, ES8316_DAC_SET1, 0x20,  in es8316_mute()
550 	snd_soc_dapm_force_enable_pin_unlocked(dapm, "Bias");  in es8316_enable_micbias_for_mic_gnd_short_detect()
552 	snd_soc_dapm_force_enable_pin_unlocked(dapm, "Mic Bias");  in es8316_enable_micbias_for_mic_gnd_short_detect()
565 	snd_soc_dapm_disable_pin_unlocked(dapm, "Mic Bias");  in es8316_disable_micbias_for_mic_gnd_short_detect()
567 	snd_soc_dapm_disable_pin_unlocked(dapm, "Bias");  in es8316_disable_micbias_for_mic_gnd_short_detect()
575 	struct snd_soc_component *comp = es8316->component;  in es8316_irq()
578 	mutex_lock(&es8316->lock);  in es8316_irq()
580 	regmap_read(es8316->regmap, ES8316_GPIO_FLAG, &flags);  in es8316_irq()
582 		goto out; /* Powered-down / reset */  in es8316_irq()
585 	if (!es8316->jack)  in es8316_irq()
588 	if (es8316->jd_inverted)  in es8316_irq()
591 	dev_dbg(comp->dev, "gpio flags %#04x\n", flags);  in es8316_irq()
594 		if (es8316->jack->status & SND_JACK_MICROPHONE)  in es8316_irq()
597 		if (es8316->jack->status & SND_JACK_HEADPHONE) {  in es8316_irq()
598 			snd_soc_jack_report(es8316->jack, 0,  in es8316_irq()
600 			dev_dbg(comp->dev, "jack unplugged\n");  in es8316_irq()
602 	} else if (!(es8316->jack->status & SND_JACK_HEADPHONE)) {  in es8316_irq()
605 		regmap_read(es8316->regmap, ES8316_GPIO_FLAG, &flags);  in es8316_irq()
606 		if (es8316->jd_inverted)  in es8316_irq()
608 		dev_dbg(comp->dev, "gpio flags %#04x\n", flags);  in es8316_irq()
614 			snd_soc_jack_report(es8316->jack,  in es8316_irq()
617 			/* Keep mic-gnd-short detection on for button press */  in es8316_irq()
620 			snd_soc_jack_report(es8316->jack,  in es8316_irq()
623 			/* No longer need mic-gnd-short detection */  in es8316_irq()
626 	} else if (es8316->jack->status & SND_JACK_MICROPHONE) {  in es8316_irq()
630 			snd_soc_jack_report(es8316->jack, 0, SND_JACK_BTN_0);  in es8316_irq()
633 			snd_soc_jack_report(es8316->jack,  in es8316_irq()
640 	mutex_unlock(&es8316->lock);  in es8316_irq()
650 	 * Init es8316->jd_inverted here and not in the probe, as we cannot  in es8316_enable_jack_detect()
651 	 * guarantee that the bytchr-es8316 driver, which might set this  in es8316_enable_jack_detect()
654 	es8316->jd_inverted = device_property_read_bool(component->dev,  in es8316_enable_jack_detect()
655 							"everest,jack-detect-inverted");  in es8316_enable_jack_detect()
657 	mutex_lock(&es8316->lock);  in es8316_enable_jack_detect()
659 	es8316->jack = jack;  in es8316_enable_jack_detect()
661 	if (es8316->jack->status & SND_JACK_MICROPHONE)  in es8316_enable_jack_detect()
668 	mutex_unlock(&es8316->lock);  in es8316_enable_jack_detect()
671 	enable_irq(es8316->irq);  in es8316_enable_jack_detect()
672 	es8316_irq(es8316->irq, es8316);  in es8316_enable_jack_detect()
679 	disable_irq(es8316->irq);  in es8316_disable_jack_detect()
681 	mutex_lock(&es8316->lock);  in es8316_disable_jack_detect()
686 	if (es8316->jack->status & SND_JACK_MICROPHONE) {  in es8316_disable_jack_detect()
688 		snd_soc_jack_report(es8316->jack, 0, SND_JACK_BTN_0);  in es8316_disable_jack_detect()
691 	es8316->jack = NULL;  in es8316_disable_jack_detect()
693 	mutex_unlock(&es8316->lock);  in es8316_disable_jack_detect()
712 	es8316->component = component;  in es8316_probe()
714 	es8316->mclk = devm_clk_get_optional(component->dev, "mclk");  in es8316_probe()
715 	if (IS_ERR(es8316->mclk)) {  in es8316_probe()
716 		dev_err(component->dev, "unable to get mclk\n");  in es8316_probe()
717 		return PTR_ERR(es8316->mclk);  in es8316_probe()
719 	if (!es8316->mclk)  in es8316_probe()
720 		dev_warn(component->dev, "assuming static mclk\n");  in es8316_probe()
722 	ret = clk_prepare_enable(es8316->mclk);  in es8316_probe()
724 		dev_err(component->dev, "unable to enable mclk\n");  in es8316_probe()
742 	 * but here is a vendor-provided value that improves volume  in es8316_probe()
754 	clk_disable_unprepare(es8316->mclk);  in es8316_remove()
792 	struct device *dev = &i2c_client->dev;  in es8316_i2c_probe()
796 	es8316 = devm_kzalloc(&i2c_client->dev, sizeof(struct es8316_priv),  in es8316_i2c_probe()
799 		return -ENOMEM;  in es8316_i2c_probe()
803 	es8316->regmap = devm_regmap_init_i2c(i2c_client, &es8316_regmap);  in es8316_i2c_probe()
804 	if (IS_ERR(es8316->regmap))  in es8316_i2c_probe()
805 		return PTR_ERR(es8316->regmap);  in es8316_i2c_probe()
807 	es8316->irq = i2c_client->irq;  in es8316_i2c_probe()
808 	mutex_init(&es8316->lock);  in es8316_i2c_probe()
810 	ret = devm_request_threaded_irq(dev, es8316->irq, NULL, es8316_irq,  in es8316_i2c_probe()
814 		/* Gets re-enabled by es8316_set_jack() */  in es8316_i2c_probe()
815 		disable_irq(es8316->irq);  in es8316_i2c_probe()
817 		dev_warn(dev, "Failed to get IRQ %d: %d\n", es8316->irq, ret);  in es8316_i2c_probe()
818 		es8316->irq = -ENXIO;  in es8316_i2c_probe()
821 	return devm_snd_soc_register_component(&i2c_client->dev,  in es8316_i2c_probe()
858 MODULE_AUTHOR("David Yang <yangxiaohua@everest-semi.com>");