/* * omap-twl4030.c -- SoC audio for TI SoC based boards with twl4030 codec * * Copyright (C) 2012 Texas Instruments Incorporated - http://www.ti.com * All rights reserved. * * Author: Peter Ujfalusi <peter.ujfalusi@ti.com> * * This driver replaces the following machine drivers: * omap3beagle (Author: Steve Sakoman <steve@sakoman.com>) * omap3evm (Author: Anuj Aggarwal <anuj.aggarwal@ti.com>) * overo (Author: Steve Sakoman <steve@sakoman.com>) * igep0020 (Author: Enric Balletbo i Serra <eballetbo@iseebcn.com>) * zoom2 (Author: Misael Lopez Cruz <misael.lopez@ti.com>) * sdp3430 (Author: Misael Lopez Cruz <misael.lopez@ti.com>) * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * version 2 as published by the Free Software Foundation. * * This program is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA * 02110-1301 USA * */ #include <linux/platform_device.h> #include <linux/platform_data/omap-twl4030.h> #include <linux/module.h> #include <linux/of.h> #include <linux/gpio.h> #include <linux/of_gpio.h> #include <sound/core.h> #include <sound/pcm.h> #include <sound/soc.h> #include <sound/jack.h> #include "omap-mcbsp.h" struct omap_twl4030 { int jack_detect; /* board can detect jack events */ struct snd_soc_jack hs_jack; }; static int omap_twl4030_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params) { struct snd_soc_pcm_runtime *rtd = substream->private_data; struct snd_soc_dai *codec_dai = rtd->codec_dai; struct snd_soc_dai *cpu_dai = rtd->cpu_dai; struct snd_soc_card *card = rtd->card; unsigned int fmt; int ret; switch (params_channels(params)) { case 2: /* Stereo I2S mode */ fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBM_CFM; break; case 4: /* Four channel TDM mode */ fmt = SND_SOC_DAIFMT_DSP_A | SND_SOC_DAIFMT_IB_NF | SND_SOC_DAIFMT_CBM_CFM; break; default: return -EINVAL; } /* Set codec DAI configuration */ ret = snd_soc_dai_set_fmt(codec_dai, fmt); if (ret < 0) { dev_err(card->dev, "can't set codec DAI configuration\n"); return ret; } /* Set cpu DAI configuration */ ret = snd_soc_dai_set_fmt(cpu_dai, fmt); if (ret < 0) { dev_err(card->dev, "can't set cpu DAI configuration\n"); return ret; } return 0; } static struct snd_soc_ops omap_twl4030_ops = { .hw_params = omap_twl4030_hw_params, }; static const struct snd_soc_dapm_widget dapm_widgets[] = { SND_SOC_DAPM_SPK("Earpiece Spk", NULL), SND_SOC_DAPM_SPK("Handsfree Spk", NULL), SND_SOC_DAPM_HP("Headset Stereophone", NULL), SND_SOC_DAPM_SPK("Ext Spk", NULL), SND_SOC_DAPM_SPK("Carkit Spk", NULL), SND_SOC_DAPM_MIC("Main Mic", NULL), SND_SOC_DAPM_MIC("Sub Mic", NULL), SND_SOC_DAPM_MIC("Headset Mic", NULL), SND_SOC_DAPM_MIC("Carkit Mic", NULL), SND_SOC_DAPM_MIC("Digital0 Mic", NULL), SND_SOC_DAPM_MIC("Digital1 Mic", NULL), SND_SOC_DAPM_LINE("Line In", NULL), }; static const struct snd_soc_dapm_route audio_map[] = { /* Headset Stereophone: HSOL, HSOR */ {"Headset Stereophone", NULL, "HSOL"}, {"Headset Stereophone", NULL, "HSOR"}, /* External Speakers: HFL, HFR */ {"Handsfree Spk", NULL, "HFL"}, {"Handsfree Spk", NULL, "HFR"}, /* External Speakers: PredrivL, PredrivR */ {"Ext Spk", NULL, "PREDRIVEL"}, {"Ext Spk", NULL, "PREDRIVER"}, /* Carkit speakers: CARKITL, CARKITR */ {"Carkit Spk", NULL, "CARKITL"}, {"Carkit Spk", NULL, "CARKITR"}, /* Earpiece */ {"Earpiece Spk", NULL, "EARPIECE"}, /* External Mics: MAINMIC, SUBMIC with bias */ {"MAINMIC", NULL, "Main Mic"}, {"Main Mic", NULL, "Mic Bias 1"}, {"SUBMIC", NULL, "Sub Mic"}, {"Sub Mic", NULL, "Mic Bias 2"}, /* Headset Mic: HSMIC with bias */ {"HSMIC", NULL, "Headset Mic"}, {"Headset Mic", NULL, "Headset Mic Bias"}, /* Digital Mics: DIGIMIC0, DIGIMIC1 with bias */ {"DIGIMIC0", NULL, "Digital0 Mic"}, {"Digital0 Mic", NULL, "Mic Bias 1"}, {"DIGIMIC1", NULL, "Digital1 Mic"}, {"Digital1 Mic", NULL, "Mic Bias 2"}, /* Carkit In: CARKITMIC */ {"CARKITMIC", NULL, "Carkit Mic"}, /* Aux In: AUXL, AUXR */ {"AUXL", NULL, "Line In"}, {"AUXR", NULL, "Line In"}, }; /* Headset jack detection DAPM pins */ static struct snd_soc_jack_pin hs_jack_pins[] = { { .pin = "Headset Mic", .mask = SND_JACK_MICROPHONE, }, { .pin = "Headset Stereophone", .mask = SND_JACK_HEADPHONE, }, }; /* Headset jack detection gpios */ static struct snd_soc_jack_gpio hs_jack_gpios[] = { { .name = "hsdet-gpio", .report = SND_JACK_HEADSET, .debounce_time = 200, }, }; static inline void twl4030_disconnect_pin(struct snd_soc_dapm_context *dapm, int connected, char *pin) { if (!connected) snd_soc_dapm_disable_pin(dapm, pin); } static int omap_twl4030_init(struct snd_soc_pcm_runtime *rtd) { struct snd_soc_codec *codec = rtd->codec; struct snd_soc_card *card = rtd->card; struct snd_soc_dapm_context *dapm = &codec->dapm; struct omap_tw4030_pdata *pdata = dev_get_platdata(card->dev); struct omap_twl4030 *priv = snd_soc_card_get_drvdata(card); int ret = 0; /* Headset jack detection only if it is supported */ if (priv->jack_detect > 0) { hs_jack_gpios[0].gpio = priv->jack_detect; ret = snd_soc_jack_new(codec, "Headset Jack", SND_JACK_HEADSET, &priv->hs_jack); if (ret) return ret; ret = snd_soc_jack_add_pins(&priv->hs_jack, ARRAY_SIZE(hs_jack_pins), hs_jack_pins); if (ret) return ret; ret = snd_soc_jack_add_gpios(&priv->hs_jack, ARRAY_SIZE(hs_jack_gpios), hs_jack_gpios); if (ret) return ret; } /* * NULL pdata means we booted with DT. In this case the routing is * provided and the card is fully routed, no need to mark pins. */ if (!pdata || !pdata->custom_routing) return ret; /* Disable not connected paths if not used */ twl4030_disconnect_pin(dapm, pdata->has_ear, "Earpiece Spk"); twl4030_disconnect_pin(dapm, pdata->has_hf, "Handsfree Spk"); twl4030_disconnect_pin(dapm, pdata->has_hs, "Headset Stereophone"); twl4030_disconnect_pin(dapm, pdata->has_predriv, "Ext Spk"); twl4030_disconnect_pin(dapm, pdata->has_carkit, "Carkit Spk"); twl4030_disconnect_pin(dapm, pdata->has_mainmic, "Main Mic"); twl4030_disconnect_pin(dapm, pdata->has_submic, "Sub Mic"); twl4030_disconnect_pin(dapm, pdata->has_hsmic, "Headset Mic"); twl4030_disconnect_pin(dapm, pdata->has_carkitmic, "Carkit Mic"); twl4030_disconnect_pin(dapm, pdata->has_digimic0, "Digital0 Mic"); twl4030_disconnect_pin(dapm, pdata->has_digimic1, "Digital1 Mic"); twl4030_disconnect_pin(dapm, pdata->has_linein, "Line In"); return ret; } static int omap_twl4030_card_remove(struct snd_soc_card *card) { struct omap_twl4030 *priv = snd_soc_card_get_drvdata(card); if (priv->jack_detect > 0) snd_soc_jack_free_gpios(&priv->hs_jack, ARRAY_SIZE(hs_jack_gpios), hs_jack_gpios); return 0; } /* Digital audio interface glue - connects codec <--> CPU */ static struct snd_soc_dai_link omap_twl4030_dai_links[] = { { .name = "TWL4030 HiFi", .stream_name = "TWL4030 HiFi", .cpu_dai_name = "omap-mcbsp.2", .codec_dai_name = "twl4030-hifi", .platform_name = "omap-mcbsp.2", .codec_name = "twl4030-codec", .init = omap_twl4030_init, .ops = &omap_twl4030_ops, }, { .name = "TWL4030 Voice", .stream_name = "TWL4030 Voice", .cpu_dai_name = "omap-mcbsp.3", .codec_dai_name = "twl4030-voice", .platform_name = "omap-mcbsp.3", .codec_name = "twl4030-codec", .dai_fmt = SND_SOC_DAIFMT_DSP_A | SND_SOC_DAIFMT_IB_NF | SND_SOC_DAIFMT_CBM_CFM, }, }; /* Audio machine driver */ static struct snd_soc_card omap_twl4030_card = { .owner = THIS_MODULE, .remove = omap_twl4030_card_remove, .dai_link = omap_twl4030_dai_links, .num_links = ARRAY_SIZE(omap_twl4030_dai_links), .dapm_widgets = dapm_widgets, .num_dapm_widgets = ARRAY_SIZE(dapm_widgets), .dapm_routes = audio_map, .num_dapm_routes = ARRAY_SIZE(audio_map), }; static int omap_twl4030_probe(struct platform_device *pdev) { struct omap_tw4030_pdata *pdata = dev_get_platdata(&pdev->dev); struct device_node *node = pdev->dev.of_node; struct snd_soc_card *card = &omap_twl4030_card; struct omap_twl4030 *priv; int ret = 0; card->dev = &pdev->dev; priv = devm_kzalloc(&pdev->dev, sizeof(struct omap_twl4030), GFP_KERNEL); if (priv == NULL) return -ENOMEM; if (node) { struct device_node *dai_node; struct property *prop; if (snd_soc_of_parse_card_name(card, "ti,model")) { dev_err(&pdev->dev, "Card name is not provided\n"); return -ENODEV; } dai_node = of_parse_phandle(node, "ti,mcbsp", 0); if (!dai_node) { dev_err(&pdev->dev, "McBSP node is not provided\n"); return -EINVAL; } omap_twl4030_dai_links[0].cpu_dai_name = NULL; omap_twl4030_dai_links[0].cpu_of_node = dai_node; omap_twl4030_dai_links[0].platform_name = NULL; omap_twl4030_dai_links[0].platform_of_node = dai_node; dai_node = of_parse_phandle(node, "ti,mcbsp-voice", 0); if (!dai_node) { card->num_links = 1; } else { omap_twl4030_dai_links[1].cpu_dai_name = NULL; omap_twl4030_dai_links[1].cpu_of_node = dai_node; omap_twl4030_dai_links[1].platform_name = NULL; omap_twl4030_dai_links[1].platform_of_node = dai_node; } priv->jack_detect = of_get_named_gpio(node, "ti,jack-det-gpio", 0); /* Optional: audio routing can be provided */ prop = of_find_property(node, "ti,audio-routing", NULL); if (prop) { ret = snd_soc_of_parse_audio_routing(card, "ti,audio-routing"); if (ret) return ret; card->fully_routed = 1; } } else if (pdata) { if (pdata->card_name) { card->name = pdata->card_name; } else { dev_err(&pdev->dev, "Card name is not provided\n"); return -ENODEV; } if (!pdata->voice_connected) card->num_links = 1; priv->jack_detect = pdata->jack_detect; } else { dev_err(&pdev->dev, "Missing pdata\n"); return -ENODEV; } snd_soc_card_set_drvdata(card, priv); ret = devm_snd_soc_register_card(&pdev->dev, card); if (ret) { dev_err(&pdev->dev, "devm_snd_soc_register_card() failed: %d\n", ret); return ret; } return 0; } static const struct of_device_id omap_twl4030_of_match[] = { {.compatible = "ti,omap-twl4030", }, { }, }; MODULE_DEVICE_TABLE(of, omap_twl4030_of_match); static struct platform_driver omap_twl4030_driver = { .driver = { .name = "omap-twl4030", .owner = THIS_MODULE, .pm = &snd_soc_pm_ops, .of_match_table = omap_twl4030_of_match, }, .probe = omap_twl4030_probe, }; module_platform_driver(omap_twl4030_driver); MODULE_AUTHOR("Peter Ujfalusi <peter.ujfalusi@ti.com>"); MODULE_DESCRIPTION("ALSA SoC for TI SoC based boards with twl4030 codec"); MODULE_LICENSE("GPL"); MODULE_ALIAS("platform:omap-twl4030");