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1// SPDX-License-Identifier: GPL-2.0-only2/*3 * omap-twl4030.c -- SoC audio for TI SoC based boards with twl4030 codec4 *5 * Copyright (C) 2012 Texas Instruments Incorporated - https://www.ti.com6 * All rights reserved.7 *8 * Author: Peter Ujfalusi <peter.ujfalusi@ti.com>9 *10 * This driver replaces the following machine drivers:11 * omap3beagle (Author: Steve Sakoman <steve@sakoman.com>)12 * omap3evm (Author: Anuj Aggarwal <anuj.aggarwal@ti.com>)13 * overo (Author: Steve Sakoman <steve@sakoman.com>)14 * igep0020 (Author: Enric Balletbo i Serra <eballetbo@iseebcn.com>)15 * zoom2 (Author: Misael Lopez Cruz <misael.lopez@ti.com>)16 * sdp3430 (Author: Misael Lopez Cruz <misael.lopez@ti.com>)17 */18 19#include <linux/platform_device.h>20#include <linux/platform_data/omap-twl4030.h>21#include <linux/module.h>22#include <linux/of.h>23 24#include <sound/core.h>25#include <sound/pcm.h>26#include <sound/soc.h>27#include <sound/jack.h>28 29#include "omap-mcbsp.h"30 31struct omap_twl4030 {32 struct snd_soc_jack hs_jack;33};34 35static int omap_twl4030_hw_params(struct snd_pcm_substream *substream,36 struct snd_pcm_hw_params *params)37{38 struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);39 unsigned int fmt;40 41 switch (params_channels(params)) {42 case 2: /* Stereo I2S mode */43 fmt = SND_SOC_DAIFMT_I2S |44 SND_SOC_DAIFMT_NB_NF |45 SND_SOC_DAIFMT_CBM_CFM;46 break;47 case 4: /* Four channel TDM mode */48 fmt = SND_SOC_DAIFMT_DSP_A |49 SND_SOC_DAIFMT_IB_NF |50 SND_SOC_DAIFMT_CBM_CFM;51 break;52 default:53 return -EINVAL;54 }55 56 return snd_soc_runtime_set_dai_fmt(rtd, fmt);57}58 59static const struct snd_soc_ops omap_twl4030_ops = {60 .hw_params = omap_twl4030_hw_params,61};62 63static const struct snd_soc_dapm_widget dapm_widgets[] = {64 SND_SOC_DAPM_SPK("Earpiece Spk", NULL),65 SND_SOC_DAPM_SPK("Handsfree Spk", NULL),66 SND_SOC_DAPM_HP("Headset Stereophone", NULL),67 SND_SOC_DAPM_SPK("Ext Spk", NULL),68 SND_SOC_DAPM_SPK("Carkit Spk", NULL),69 70 SND_SOC_DAPM_MIC("Main Mic", NULL),71 SND_SOC_DAPM_MIC("Sub Mic", NULL),72 SND_SOC_DAPM_MIC("Headset Mic", NULL),73 SND_SOC_DAPM_MIC("Carkit Mic", NULL),74 SND_SOC_DAPM_MIC("Digital0 Mic", NULL),75 SND_SOC_DAPM_MIC("Digital1 Mic", NULL),76 SND_SOC_DAPM_LINE("Line In", NULL),77};78 79static const struct snd_soc_dapm_route audio_map[] = {80 /* Headset Stereophone: HSOL, HSOR */81 {"Headset Stereophone", NULL, "HSOL"},82 {"Headset Stereophone", NULL, "HSOR"},83 /* External Speakers: HFL, HFR */84 {"Handsfree Spk", NULL, "HFL"},85 {"Handsfree Spk", NULL, "HFR"},86 /* External Speakers: PredrivL, PredrivR */87 {"Ext Spk", NULL, "PREDRIVEL"},88 {"Ext Spk", NULL, "PREDRIVER"},89 /* Carkit speakers: CARKITL, CARKITR */90 {"Carkit Spk", NULL, "CARKITL"},91 {"Carkit Spk", NULL, "CARKITR"},92 /* Earpiece */93 {"Earpiece Spk", NULL, "EARPIECE"},94 95 /* External Mics: MAINMIC, SUBMIC with bias */96 {"MAINMIC", NULL, "Main Mic"},97 {"Main Mic", NULL, "Mic Bias 1"},98 {"SUBMIC", NULL, "Sub Mic"},99 {"Sub Mic", NULL, "Mic Bias 2"},100 /* Headset Mic: HSMIC with bias */101 {"HSMIC", NULL, "Headset Mic"},102 {"Headset Mic", NULL, "Headset Mic Bias"},103 /* Digital Mics: DIGIMIC0, DIGIMIC1 with bias */104 {"DIGIMIC0", NULL, "Digital0 Mic"},105 {"Digital0 Mic", NULL, "Mic Bias 1"},106 {"DIGIMIC1", NULL, "Digital1 Mic"},107 {"Digital1 Mic", NULL, "Mic Bias 2"},108 /* Carkit In: CARKITMIC */109 {"CARKITMIC", NULL, "Carkit Mic"},110 /* Aux In: AUXL, AUXR */111 {"AUXL", NULL, "Line In"},112 {"AUXR", NULL, "Line In"},113};114 115/* Headset jack detection DAPM pins */116static struct snd_soc_jack_pin hs_jack_pins[] = {117 {118 .pin = "Headset Mic",119 .mask = SND_JACK_MICROPHONE,120 },121 {122 .pin = "Headset Stereophone",123 .mask = SND_JACK_HEADPHONE,124 },125};126 127/* Headset jack detection gpios */128static struct snd_soc_jack_gpio hs_jack_gpios[] = {129 {130 .name = "ti,jack-det",131 .report = SND_JACK_HEADSET,132 .debounce_time = 200,133 },134};135 136static inline void twl4030_disconnect_pin(struct snd_soc_dapm_context *dapm,137 int connected, char *pin)138{139 if (!connected)140 snd_soc_dapm_disable_pin(dapm, pin);141}142 143static int omap_twl4030_init(struct snd_soc_pcm_runtime *rtd)144{145 struct snd_soc_card *card = rtd->card;146 struct snd_soc_dapm_context *dapm = &card->dapm;147 struct omap_tw4030_pdata *pdata = dev_get_platdata(card->dev);148 struct omap_twl4030 *priv = snd_soc_card_get_drvdata(card);149 int ret = 0;150 151 /*152 * This is a bit of a hack, but the GPIO is optional so we153 * only want to add the jack detection if the GPIO is there.154 */155 if (of_property_present(card->dev->of_node, "ti,jack-det-gpio")) {156 hs_jack_gpios[0].gpiod_dev = card->dev;157 hs_jack_gpios[0].idx = 0;158 159 ret = snd_soc_card_jack_new_pins(rtd->card, "Headset Jack",160 SND_JACK_HEADSET,161 &priv->hs_jack, hs_jack_pins,162 ARRAY_SIZE(hs_jack_pins));163 if (ret)164 return ret;165 166 ret = snd_soc_jack_add_gpios(&priv->hs_jack,167 ARRAY_SIZE(hs_jack_gpios),168 hs_jack_gpios);169 if (ret)170 return ret;171 }172 173 /*174 * NULL pdata means we booted with DT. In this case the routing is175 * provided and the card is fully routed, no need to mark pins.176 */177 if (!pdata || !pdata->custom_routing)178 return ret;179 180 /* Disable not connected paths if not used */181 twl4030_disconnect_pin(dapm, pdata->has_ear, "Earpiece Spk");182 twl4030_disconnect_pin(dapm, pdata->has_hf, "Handsfree Spk");183 twl4030_disconnect_pin(dapm, pdata->has_hs, "Headset Stereophone");184 twl4030_disconnect_pin(dapm, pdata->has_predriv, "Ext Spk");185 twl4030_disconnect_pin(dapm, pdata->has_carkit, "Carkit Spk");186 187 twl4030_disconnect_pin(dapm, pdata->has_mainmic, "Main Mic");188 twl4030_disconnect_pin(dapm, pdata->has_submic, "Sub Mic");189 twl4030_disconnect_pin(dapm, pdata->has_hsmic, "Headset Mic");190 twl4030_disconnect_pin(dapm, pdata->has_carkitmic, "Carkit Mic");191 twl4030_disconnect_pin(dapm, pdata->has_digimic0, "Digital0 Mic");192 twl4030_disconnect_pin(dapm, pdata->has_digimic1, "Digital1 Mic");193 twl4030_disconnect_pin(dapm, pdata->has_linein, "Line In");194 195 return ret;196}197 198/* Digital audio interface glue - connects codec <--> CPU */199SND_SOC_DAILINK_DEFS(hifi,200 DAILINK_COMP_ARRAY(COMP_CPU("omap-mcbsp.2")),201 DAILINK_COMP_ARRAY(COMP_CODEC("twl4030-codec", "twl4030-hifi")),202 DAILINK_COMP_ARRAY(COMP_PLATFORM("omap-mcbsp.2")));203 204SND_SOC_DAILINK_DEFS(voice,205 DAILINK_COMP_ARRAY(COMP_CPU("omap-mcbsp.3")),206 DAILINK_COMP_ARRAY(COMP_CODEC("twl4030-codec", "twl4030-voice")),207 DAILINK_COMP_ARRAY(COMP_PLATFORM("omap-mcbsp.3")));208 209static struct snd_soc_dai_link omap_twl4030_dai_links[] = {210 {211 .name = "TWL4030 HiFi",212 .stream_name = "TWL4030 HiFi",213 .init = omap_twl4030_init,214 .ops = &omap_twl4030_ops,215 SND_SOC_DAILINK_REG(hifi),216 },217 {218 .name = "TWL4030 Voice",219 .stream_name = "TWL4030 Voice",220 .dai_fmt = SND_SOC_DAIFMT_DSP_A | SND_SOC_DAIFMT_IB_NF |221 SND_SOC_DAIFMT_CBM_CFM,222 SND_SOC_DAILINK_REG(voice),223 },224};225 226/* Audio machine driver */227static struct snd_soc_card omap_twl4030_card = {228 .owner = THIS_MODULE,229 .dai_link = omap_twl4030_dai_links,230 .num_links = ARRAY_SIZE(omap_twl4030_dai_links),231 232 .dapm_widgets = dapm_widgets,233 .num_dapm_widgets = ARRAY_SIZE(dapm_widgets),234 .dapm_routes = audio_map,235 .num_dapm_routes = ARRAY_SIZE(audio_map),236};237 238static int omap_twl4030_probe(struct platform_device *pdev)239{240 struct omap_tw4030_pdata *pdata = dev_get_platdata(&pdev->dev);241 struct device_node *node = pdev->dev.of_node;242 struct snd_soc_card *card = &omap_twl4030_card;243 struct omap_twl4030 *priv;244 int ret = 0;245 246 card->dev = &pdev->dev;247 248 priv = devm_kzalloc(&pdev->dev, sizeof(struct omap_twl4030), GFP_KERNEL);249 if (priv == NULL)250 return -ENOMEM;251 252 if (node) {253 struct device_node *dai_node;254 struct property *prop;255 256 if (snd_soc_of_parse_card_name(card, "ti,model")) {257 dev_err(&pdev->dev, "Card name is not provided\n");258 return -ENODEV;259 }260 261 dai_node = of_parse_phandle(node, "ti,mcbsp", 0);262 if (!dai_node) {263 dev_err(&pdev->dev, "McBSP node is not provided\n");264 return -EINVAL;265 }266 omap_twl4030_dai_links[0].cpus->dai_name = NULL;267 omap_twl4030_dai_links[0].cpus->of_node = dai_node;268 269 omap_twl4030_dai_links[0].platforms->name = NULL;270 omap_twl4030_dai_links[0].platforms->of_node = dai_node;271 272 dai_node = of_parse_phandle(node, "ti,mcbsp-voice", 0);273 if (!dai_node) {274 card->num_links = 1;275 } else {276 omap_twl4030_dai_links[1].cpus->dai_name = NULL;277 omap_twl4030_dai_links[1].cpus->of_node = dai_node;278 279 omap_twl4030_dai_links[1].platforms->name = NULL;280 omap_twl4030_dai_links[1].platforms->of_node = dai_node;281 }282 283 /* Optional: audio routing can be provided */284 prop = of_find_property(node, "ti,audio-routing", NULL);285 if (prop) {286 ret = snd_soc_of_parse_audio_routing(card,287 "ti,audio-routing");288 if (ret)289 return ret;290 291 card->fully_routed = 1;292 }293 } else if (pdata) {294 if (pdata->card_name) {295 card->name = pdata->card_name;296 } else {297 dev_err(&pdev->dev, "Card name is not provided\n");298 return -ENODEV;299 }300 301 if (!pdata->voice_connected)302 card->num_links = 1;303 } else {304 dev_err(&pdev->dev, "Missing pdata\n");305 return -ENODEV;306 }307 308 snd_soc_card_set_drvdata(card, priv);309 ret = devm_snd_soc_register_card(&pdev->dev, card);310 if (ret) {311 dev_err(&pdev->dev, "devm_snd_soc_register_card() failed: %d\n",312 ret);313 return ret;314 }315 316 return 0;317}318 319static const struct of_device_id omap_twl4030_of_match[] = {320 {.compatible = "ti,omap-twl4030", },321 { },322};323MODULE_DEVICE_TABLE(of, omap_twl4030_of_match);324 325static struct platform_driver omap_twl4030_driver = {326 .driver = {327 .name = "omap-twl4030",328 .pm = &snd_soc_pm_ops,329 .of_match_table = omap_twl4030_of_match,330 },331 .probe = omap_twl4030_probe,332};333 334module_platform_driver(omap_twl4030_driver);335 336MODULE_AUTHOR("Peter Ujfalusi <peter.ujfalusi@ti.com>");337MODULE_DESCRIPTION("ALSA SoC for TI SoC based boards with twl4030 codec");338MODULE_LICENSE("GPL");339MODULE_ALIAS("platform:omap-twl4030");340