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1// SPDX-License-Identifier: GPL-2.0-only2/*3 * rx51.c  --  SoC audio for Nokia RX-514 *5 * Copyright (C) 2008 - 2009 Nokia Corporation6 *7 * Contact: Peter Ujfalusi <peter.ujfalusi@ti.com>8 *          Eduardo Valentin <eduardo.valentin@nokia.com>9 *          Jarkko Nikula <jarkko.nikula@bitmer.com>10 */11 12#include <linux/delay.h>13#include <linux/platform_device.h>14#include <linux/gpio/consumer.h>15#include <linux/module.h>16#include <sound/core.h>17#include <sound/jack.h>18#include <sound/pcm.h>19#include <sound/soc.h>20#include <linux/platform_data/asoc-ti-mcbsp.h>21 22#include <asm/mach-types.h>23 24#include "omap-mcbsp.h"25 26enum {27	RX51_JACK_DISABLED,28	RX51_JACK_TVOUT,		/* tv-out with stereo output */29	RX51_JACK_HP,			/* headphone: stereo output, no mic */30	RX51_JACK_HS,			/* headset: stereo output with mic */31};32 33struct rx51_audio_pdata {34	struct gpio_desc *tvout_selection_gpio;35	struct gpio_desc *eci_sw_gpio;36	struct gpio_desc *speaker_amp_gpio;37};38 39static int rx51_spk_func;40static int rx51_dmic_func;41static int rx51_jack_func;42 43static void rx51_ext_control(struct snd_soc_dapm_context *dapm)44{45	struct snd_soc_card *card = dapm->card;46	struct rx51_audio_pdata *pdata = snd_soc_card_get_drvdata(card);47	int hp = 0, hs = 0, tvout = 0;48 49	switch (rx51_jack_func) {50	case RX51_JACK_TVOUT:51		tvout = 1;52		hp = 1;53		break;54	case RX51_JACK_HS:55		hs = 1;56		fallthrough;57	case RX51_JACK_HP:58		hp = 1;59		break;60	}61 62	snd_soc_dapm_mutex_lock(dapm);63 64	if (rx51_spk_func)65		snd_soc_dapm_enable_pin_unlocked(dapm, "Ext Spk");66	else67		snd_soc_dapm_disable_pin_unlocked(dapm, "Ext Spk");68	if (rx51_dmic_func)69		snd_soc_dapm_enable_pin_unlocked(dapm, "DMic");70	else71		snd_soc_dapm_disable_pin_unlocked(dapm, "DMic");72	if (hp)73		snd_soc_dapm_enable_pin_unlocked(dapm, "Headphone Jack");74	else75		snd_soc_dapm_disable_pin_unlocked(dapm, "Headphone Jack");76	if (hs)77		snd_soc_dapm_enable_pin_unlocked(dapm, "HS Mic");78	else79		snd_soc_dapm_disable_pin_unlocked(dapm, "HS Mic");80 81	gpiod_set_value(pdata->tvout_selection_gpio, tvout);82 83	snd_soc_dapm_sync_unlocked(dapm);84 85	snd_soc_dapm_mutex_unlock(dapm);86}87 88static int rx51_startup(struct snd_pcm_substream *substream)89{90	struct snd_pcm_runtime *runtime = substream->runtime;91	struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);92	struct snd_soc_card *card = rtd->card;93 94	snd_pcm_hw_constraint_single(runtime, SNDRV_PCM_HW_PARAM_CHANNELS, 2);95	rx51_ext_control(&card->dapm);96 97	return 0;98}99 100static int rx51_hw_params(struct snd_pcm_substream *substream,101	struct snd_pcm_hw_params *params)102{103	struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);104	struct snd_soc_dai *codec_dai = snd_soc_rtd_to_codec(rtd, 0);105 106	/* Set the codec system clock for DAC and ADC */107	return snd_soc_dai_set_sysclk(codec_dai, 0, 19200000,108				      SND_SOC_CLOCK_IN);109}110 111static const struct snd_soc_ops rx51_ops = {112	.startup = rx51_startup,113	.hw_params = rx51_hw_params,114};115 116static int rx51_get_spk(struct snd_kcontrol *kcontrol,117			struct snd_ctl_elem_value *ucontrol)118{119	ucontrol->value.enumerated.item[0] = rx51_spk_func;120 121	return 0;122}123 124static int rx51_set_spk(struct snd_kcontrol *kcontrol,125			struct snd_ctl_elem_value *ucontrol)126{127	struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);128 129	if (rx51_spk_func == ucontrol->value.enumerated.item[0])130		return 0;131 132	rx51_spk_func = ucontrol->value.enumerated.item[0];133	rx51_ext_control(&card->dapm);134 135	return 1;136}137 138static int rx51_spk_event(struct snd_soc_dapm_widget *w,139			  struct snd_kcontrol *k, int event)140{141	struct snd_soc_dapm_context *dapm = w->dapm;142	struct snd_soc_card *card = dapm->card;143	struct rx51_audio_pdata *pdata = snd_soc_card_get_drvdata(card);144 145	gpiod_set_raw_value_cansleep(pdata->speaker_amp_gpio,146				     !!SND_SOC_DAPM_EVENT_ON(event));147 148	return 0;149}150 151static int rx51_get_input(struct snd_kcontrol *kcontrol,152			  struct snd_ctl_elem_value *ucontrol)153{154	ucontrol->value.enumerated.item[0] = rx51_dmic_func;155 156	return 0;157}158 159static int rx51_set_input(struct snd_kcontrol *kcontrol,160			  struct snd_ctl_elem_value *ucontrol)161{162	struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);163 164	if (rx51_dmic_func == ucontrol->value.enumerated.item[0])165		return 0;166 167	rx51_dmic_func = ucontrol->value.enumerated.item[0];168	rx51_ext_control(&card->dapm);169 170	return 1;171}172 173static int rx51_get_jack(struct snd_kcontrol *kcontrol,174			 struct snd_ctl_elem_value *ucontrol)175{176	ucontrol->value.enumerated.item[0] = rx51_jack_func;177 178	return 0;179}180 181static int rx51_set_jack(struct snd_kcontrol *kcontrol,182			 struct snd_ctl_elem_value *ucontrol)183{184	struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);185 186	if (rx51_jack_func == ucontrol->value.enumerated.item[0])187		return 0;188 189	rx51_jack_func = ucontrol->value.enumerated.item[0];190	rx51_ext_control(&card->dapm);191 192	return 1;193}194 195static struct snd_soc_jack rx51_av_jack;196 197static struct snd_soc_jack_gpio rx51_av_jack_gpios[] = {198	{199		.name = "jack-detection",200		.report = SND_JACK_HEADSET,201		.invert = 1,202		.debounce_time = 200,203	},204};205 206static const struct snd_soc_dapm_widget aic34_dapm_widgets[] = {207	SND_SOC_DAPM_SPK("Ext Spk", rx51_spk_event),208	SND_SOC_DAPM_MIC("DMic", NULL),209	SND_SOC_DAPM_HP("Headphone Jack", NULL),210	SND_SOC_DAPM_MIC("HS Mic", NULL),211	SND_SOC_DAPM_LINE("FM Transmitter", NULL),212	SND_SOC_DAPM_SPK("Earphone", NULL),213};214 215static const struct snd_soc_dapm_route audio_map[] = {216	{"Ext Spk", NULL, "HPLOUT"},217	{"Ext Spk", NULL, "HPROUT"},218	{"Ext Spk", NULL, "HPLCOM"},219	{"Ext Spk", NULL, "HPRCOM"},220	{"FM Transmitter", NULL, "LLOUT"},221	{"FM Transmitter", NULL, "RLOUT"},222 223	{"Headphone Jack", NULL, "TPA6130A2 HPLEFT"},224	{"Headphone Jack", NULL, "TPA6130A2 HPRIGHT"},225	{"TPA6130A2 LEFTIN", NULL, "LLOUT"},226	{"TPA6130A2 RIGHTIN", NULL, "RLOUT"},227 228	{"DMic Rate 64", NULL, "DMic"},229	{"DMic", NULL, "Mic Bias"},230 231	{"b LINE2R", NULL, "MONO_LOUT"},232	{"Earphone", NULL, "b HPLOUT"},233 234	{"LINE1L", NULL, "HS Mic"},235	{"HS Mic", NULL, "b Mic Bias"},236};237 238static const char * const spk_function[] = {"Off", "On"};239static const char * const input_function[] = {"ADC", "Digital Mic"};240static const char * const jack_function[] = {241	"Off", "TV-OUT", "Headphone", "Headset"242};243 244static const struct soc_enum rx51_enum[] = {245	SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(spk_function), spk_function),246	SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(input_function), input_function),247	SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(jack_function), jack_function),248};249 250static const struct snd_kcontrol_new aic34_rx51_controls[] = {251	SOC_ENUM_EXT("Speaker Function", rx51_enum[0],252		     rx51_get_spk, rx51_set_spk),253	SOC_ENUM_EXT("Input Select",  rx51_enum[1],254		     rx51_get_input, rx51_set_input),255	SOC_ENUM_EXT("Jack Function", rx51_enum[2],256		     rx51_get_jack, rx51_set_jack),257	SOC_DAPM_PIN_SWITCH("FM Transmitter"),258	SOC_DAPM_PIN_SWITCH("Earphone"),259};260 261static int rx51_aic34_init(struct snd_soc_pcm_runtime *rtd)262{263	struct snd_soc_card *card = rtd->card;264	int err;265 266	snd_soc_limit_volume(card, "TPA6130A2 Headphone Playback Volume", 42);267 268	err = omap_mcbsp_st_add_controls(rtd, 2);269	if (err < 0) {270		dev_err(card->dev, "Failed to add MCBSP controls\n");271		return err;272	}273 274	/* AV jack detection */275	err = snd_soc_card_jack_new(rtd->card, "AV Jack",276				    SND_JACK_HEADSET | SND_JACK_VIDEOOUT,277				    &rx51_av_jack);278	if (err) {279		dev_err(card->dev, "Failed to add AV Jack\n");280		return err;281	}282 283	rx51_av_jack_gpios[0].gpiod_dev = card->dev;284	/* Name is assigned in the struct */285	rx51_av_jack_gpios[0].idx = 0;286 287	err = snd_soc_jack_add_gpios(&rx51_av_jack,288				     ARRAY_SIZE(rx51_av_jack_gpios),289				     rx51_av_jack_gpios);290	if (err) {291		dev_err(card->dev, "Failed to add GPIOs\n");292		return err;293	}294 295	return err;296}297 298/* Digital audio interface glue - connects codec <--> CPU */299SND_SOC_DAILINK_DEFS(aic34,300	DAILINK_COMP_ARRAY(COMP_CPU("omap-mcbsp.2")),301	DAILINK_COMP_ARRAY(COMP_CODEC("tlv320aic3x-codec.2-0018",302				      "tlv320aic3x-hifi")),303	DAILINK_COMP_ARRAY(COMP_PLATFORM("omap-mcbsp.2")));304 305static struct snd_soc_dai_link rx51_dai[] = {306	{307		.name = "TLV320AIC34",308		.stream_name = "AIC34",309		.dai_fmt = SND_SOC_DAIFMT_DSP_A | SND_SOC_DAIFMT_IB_NF |310			   SND_SOC_DAIFMT_CBM_CFM,311		.init = rx51_aic34_init,312		.ops = &rx51_ops,313		SND_SOC_DAILINK_REG(aic34),314	},315};316 317static struct snd_soc_aux_dev rx51_aux_dev[] = {318	{319		.dlc = COMP_AUX("tlv320aic3x-codec.2-0019"),320	},321	{322		.dlc = COMP_AUX("tpa6130a2.2-0060"),323	},324};325 326static struct snd_soc_codec_conf rx51_codec_conf[] = {327	{328		.dlc = COMP_CODEC_CONF("tlv320aic3x-codec.2-0019"),329		.name_prefix = "b",330	},331	{332		.dlc = COMP_CODEC_CONF("tpa6130a2.2-0060"),333		.name_prefix = "TPA6130A2",334	},335};336 337/* Audio card */338static struct snd_soc_card rx51_sound_card = {339	.name = "RX-51",340	.owner = THIS_MODULE,341	.dai_link = rx51_dai,342	.num_links = ARRAY_SIZE(rx51_dai),343	.aux_dev = rx51_aux_dev,344	.num_aux_devs = ARRAY_SIZE(rx51_aux_dev),345	.codec_conf = rx51_codec_conf,346	.num_configs = ARRAY_SIZE(rx51_codec_conf),347	.fully_routed = true,348 349	.controls = aic34_rx51_controls,350	.num_controls = ARRAY_SIZE(aic34_rx51_controls),351	.dapm_widgets = aic34_dapm_widgets,352	.num_dapm_widgets = ARRAY_SIZE(aic34_dapm_widgets),353	.dapm_routes = audio_map,354	.num_dapm_routes = ARRAY_SIZE(audio_map),355};356 357static int rx51_soc_probe(struct platform_device *pdev)358{359	struct rx51_audio_pdata *pdata;360	struct device_node *np = pdev->dev.of_node;361	struct snd_soc_card *card = &rx51_sound_card;362	int err;363 364	if (!machine_is_nokia_rx51() && !of_machine_is_compatible("nokia,omap3-n900"))365		return -ENODEV;366 367	card->dev = &pdev->dev;368 369	if (np) {370		struct device_node *dai_node;371 372		dai_node = of_parse_phandle(np, "nokia,cpu-dai", 0);373		if (!dai_node) {374			dev_err(&pdev->dev, "McBSP node is not provided\n");375			return -EINVAL;376		}377		rx51_dai[0].cpus->dai_name = NULL;378		rx51_dai[0].platforms->name = NULL;379		rx51_dai[0].cpus->of_node = dai_node;380		rx51_dai[0].platforms->of_node = dai_node;381 382		dai_node = of_parse_phandle(np, "nokia,audio-codec", 0);383		if (!dai_node) {384			dev_err(&pdev->dev, "Codec node is not provided\n");385			return -EINVAL;386		}387		rx51_dai[0].codecs->name = NULL;388		rx51_dai[0].codecs->of_node = dai_node;389 390		dai_node = of_parse_phandle(np, "nokia,audio-codec", 1);391		if (!dai_node) {392			dev_err(&pdev->dev, "Auxiliary Codec node is not provided\n");393			return -EINVAL;394		}395		rx51_aux_dev[0].dlc.name = NULL;396		rx51_aux_dev[0].dlc.of_node = dai_node;397		rx51_codec_conf[0].dlc.name = NULL;398		rx51_codec_conf[0].dlc.of_node = dai_node;399 400		dai_node = of_parse_phandle(np, "nokia,headphone-amplifier", 0);401		if (!dai_node) {402			dev_err(&pdev->dev, "Headphone amplifier node is not provided\n");403			return -EINVAL;404		}405		rx51_aux_dev[1].dlc.name = NULL;406		rx51_aux_dev[1].dlc.of_node = dai_node;407		rx51_codec_conf[1].dlc.name = NULL;408		rx51_codec_conf[1].dlc.of_node = dai_node;409	}410 411	pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);412	if (pdata == NULL)413		return -ENOMEM;414 415	snd_soc_card_set_drvdata(card, pdata);416 417	pdata->tvout_selection_gpio = devm_gpiod_get(card->dev,418						     "tvout-selection",419						     GPIOD_OUT_LOW);420	if (IS_ERR(pdata->tvout_selection_gpio)) {421		dev_err(card->dev, "could not get tvout selection gpio\n");422		return PTR_ERR(pdata->tvout_selection_gpio);423	}424 425	pdata->eci_sw_gpio = devm_gpiod_get(card->dev, "eci-switch",426					    GPIOD_OUT_HIGH);427	if (IS_ERR(pdata->eci_sw_gpio)) {428		dev_err(card->dev, "could not get eci switch gpio\n");429		return PTR_ERR(pdata->eci_sw_gpio);430	}431 432	pdata->speaker_amp_gpio = devm_gpiod_get(card->dev,433						 "speaker-amplifier",434						 GPIOD_OUT_LOW);435	if (IS_ERR(pdata->speaker_amp_gpio)) {436		dev_err(card->dev, "could not get speaker enable gpio\n");437		return PTR_ERR(pdata->speaker_amp_gpio);438	}439 440	err = devm_snd_soc_register_card(card->dev, card);441	if (err) {442		dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n", err);443		return err;444	}445 446	return 0;447}448 449#if defined(CONFIG_OF)450static const struct of_device_id rx51_audio_of_match[] = {451	{ .compatible = "nokia,n900-audio", },452	{},453};454MODULE_DEVICE_TABLE(of, rx51_audio_of_match);455#endif456 457static struct platform_driver rx51_soc_driver = {458	.driver = {459		.name = "rx51-audio",460		.of_match_table = of_match_ptr(rx51_audio_of_match),461	},462	.probe = rx51_soc_probe,463};464 465module_platform_driver(rx51_soc_driver);466 467MODULE_AUTHOR("Nokia Corporation");468MODULE_DESCRIPTION("ALSA SoC Nokia RX-51");469MODULE_LICENSE("GPL");470MODULE_ALIAS("platform:rx51-audio");471