/* * rx51.c -- SoC audio for Nokia RX-51 * * Copyright (C) 2008 - 2009 Nokia Corporation * * Contact: Peter Ujfalusi <peter.ujfalusi@ti.com> * Eduardo Valentin <eduardo.valentin@nokia.com> * Jarkko Nikula <jarkko.nikula@bitmer.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/delay.h> #include <linux/gpio.h> #include <linux/platform_device.h> #include <linux/gpio/consumer.h> #include <linux/module.h> #include <sound/core.h> #include <sound/jack.h> #include <sound/pcm.h> #include <sound/soc.h> #include <linux/platform_data/asoc-ti-mcbsp.h> #include "../codecs/tpa6130a2.h" #include <asm/mach-types.h> #include "omap-mcbsp.h" enum { RX51_JACK_DISABLED, RX51_JACK_TVOUT, /* tv-out with stereo output */ RX51_JACK_HP, /* headphone: stereo output, no mic */ RX51_JACK_HS, /* headset: stereo output with mic */ }; struct rx51_audio_pdata { struct gpio_desc *tvout_selection_gpio; struct gpio_desc *jack_detection_gpio; struct gpio_desc *eci_sw_gpio; struct gpio_desc *speaker_amp_gpio; }; static int rx51_spk_func; static int rx51_dmic_func; static int rx51_jack_func; static void rx51_ext_control(struct snd_soc_dapm_context *dapm) { struct snd_soc_card *card = dapm->card; struct rx51_audio_pdata *pdata = snd_soc_card_get_drvdata(card); int hp = 0, hs = 0, tvout = 0; switch (rx51_jack_func) { case RX51_JACK_TVOUT: tvout = 1; hp = 1; break; case RX51_JACK_HS: hs = 1; case RX51_JACK_HP: hp = 1; break; } snd_soc_dapm_mutex_lock(dapm); if (rx51_spk_func) snd_soc_dapm_enable_pin_unlocked(dapm, "Ext Spk"); else snd_soc_dapm_disable_pin_unlocked(dapm, "Ext Spk"); if (rx51_dmic_func) snd_soc_dapm_enable_pin_unlocked(dapm, "DMic"); else snd_soc_dapm_disable_pin_unlocked(dapm, "DMic"); if (hp) snd_soc_dapm_enable_pin_unlocked(dapm, "Headphone Jack"); else snd_soc_dapm_disable_pin_unlocked(dapm, "Headphone Jack"); if (hs) snd_soc_dapm_enable_pin_unlocked(dapm, "HS Mic"); else snd_soc_dapm_disable_pin_unlocked(dapm, "HS Mic"); gpiod_set_value(pdata->tvout_selection_gpio, tvout); snd_soc_dapm_sync_unlocked(dapm); snd_soc_dapm_mutex_unlock(dapm); } static int rx51_startup(struct snd_pcm_substream *substream) { struct snd_pcm_runtime *runtime = substream->runtime; struct snd_soc_pcm_runtime *rtd = substream->private_data; struct snd_soc_card *card = rtd->card; snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_CHANNELS, 2, 2); rx51_ext_control(&card->dapm); return 0; } static int rx51_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; /* Set the codec system clock for DAC and ADC */ return snd_soc_dai_set_sysclk(codec_dai, 0, 19200000, SND_SOC_CLOCK_IN); } static struct snd_soc_ops rx51_ops = { .startup = rx51_startup, .hw_params = rx51_hw_params, }; static int rx51_get_spk(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { ucontrol->value.integer.value[0] = rx51_spk_func; return 0; } static int rx51_set_spk(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); if (rx51_spk_func == ucontrol->value.integer.value[0]) return 0; rx51_spk_func = ucontrol->value.integer.value[0]; rx51_ext_control(&card->dapm); return 1; } static int rx51_spk_event(struct snd_soc_dapm_widget *w, struct snd_kcontrol *k, int event) { struct snd_soc_dapm_context *dapm = w->dapm; struct snd_soc_card *card = dapm->card; struct rx51_audio_pdata *pdata = snd_soc_card_get_drvdata(card); gpiod_set_raw_value_cansleep(pdata->speaker_amp_gpio, !!SND_SOC_DAPM_EVENT_ON(event)); return 0; } static int rx51_hp_event(struct snd_soc_dapm_widget *w, struct snd_kcontrol *k, int event) { struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm); if (SND_SOC_DAPM_EVENT_ON(event)) tpa6130a2_stereo_enable(codec, 1); else tpa6130a2_stereo_enable(codec, 0); return 0; } static int rx51_get_input(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { ucontrol->value.integer.value[0] = rx51_dmic_func; return 0; } static int rx51_set_input(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); if (rx51_dmic_func == ucontrol->value.integer.value[0]) return 0; rx51_dmic_func = ucontrol->value.integer.value[0]; rx51_ext_control(&card->dapm); return 1; } static int rx51_get_jack(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { ucontrol->value.integer.value[0] = rx51_jack_func; return 0; } static int rx51_set_jack(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); if (rx51_jack_func == ucontrol->value.integer.value[0]) return 0; rx51_jack_func = ucontrol->value.integer.value[0]; rx51_ext_control(&card->dapm); return 1; } static struct snd_soc_jack rx51_av_jack; static struct snd_soc_jack_gpio rx51_av_jack_gpios[] = { { .name = "avdet-gpio", .report = SND_JACK_HEADSET, .invert = 1, .debounce_time = 200, }, }; static const struct snd_soc_dapm_widget aic34_dapm_widgets[] = { SND_SOC_DAPM_SPK("Ext Spk", rx51_spk_event), SND_SOC_DAPM_MIC("DMic", NULL), SND_SOC_DAPM_HP("Headphone Jack", rx51_hp_event), SND_SOC_DAPM_MIC("HS Mic", NULL), SND_SOC_DAPM_LINE("FM Transmitter", NULL), SND_SOC_DAPM_SPK("Earphone", NULL), }; static const struct snd_soc_dapm_route audio_map[] = { {"Ext Spk", NULL, "HPLOUT"}, {"Ext Spk", NULL, "HPROUT"}, {"Headphone Jack", NULL, "LLOUT"}, {"Headphone Jack", NULL, "RLOUT"}, {"FM Transmitter", NULL, "LLOUT"}, {"FM Transmitter", NULL, "RLOUT"}, {"DMic Rate 64", NULL, "Mic Bias"}, {"Mic Bias", NULL, "DMic"}, {"b LINE2R", NULL, "MONO_LOUT"}, {"Earphone", NULL, "b HPLOUT"}, {"LINE1L", NULL, "b Mic Bias"}, {"b Mic Bias", NULL, "HS Mic"} }; static const char * const spk_function[] = {"Off", "On"}; static const char * const input_function[] = {"ADC", "Digital Mic"}; static const char * const jack_function[] = { "Off", "TV-OUT", "Headphone", "Headset" }; static const struct soc_enum rx51_enum[] = { SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(spk_function), spk_function), SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(input_function), input_function), SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(jack_function), jack_function), }; static const struct snd_kcontrol_new aic34_rx51_controls[] = { SOC_ENUM_EXT("Speaker Function", rx51_enum[0], rx51_get_spk, rx51_set_spk), SOC_ENUM_EXT("Input Select", rx51_enum[1], rx51_get_input, rx51_set_input), SOC_ENUM_EXT("Jack Function", rx51_enum[2], rx51_get_jack, rx51_set_jack), SOC_DAPM_PIN_SWITCH("FM Transmitter"), SOC_DAPM_PIN_SWITCH("Earphone"), }; static int rx51_aic34_init(struct snd_soc_pcm_runtime *rtd) { struct snd_soc_codec *codec = rtd->codec; struct snd_soc_card *card = rtd->card; struct rx51_audio_pdata *pdata = snd_soc_card_get_drvdata(card); struct snd_soc_dapm_context *dapm = &codec->dapm; int err; /* Set up NC codec pins */ snd_soc_dapm_nc_pin(dapm, "MIC3L"); snd_soc_dapm_nc_pin(dapm, "MIC3R"); snd_soc_dapm_nc_pin(dapm, "LINE1R"); err = tpa6130a2_add_controls(codec); if (err < 0) { dev_err(card->dev, "Failed to add TPA6130A2 controls\n"); return err; } snd_soc_limit_volume(codec, "TPA6130A2 Headphone Playback Volume", 42); err = omap_mcbsp_st_add_controls(rtd, 2); if (err < 0) { dev_err(card->dev, "Failed to add MCBSP controls\n"); return err; } /* AV jack detection */ err = snd_soc_jack_new(codec, "AV Jack", SND_JACK_HEADSET | SND_JACK_VIDEOOUT, &rx51_av_jack); if (err) { dev_err(card->dev, "Failed to add AV Jack\n"); return err; } /* prepare gpio for snd_soc_jack_add_gpios */ rx51_av_jack_gpios[0].gpio = desc_to_gpio(pdata->jack_detection_gpio); devm_gpiod_put(card->dev, pdata->jack_detection_gpio); err = snd_soc_jack_add_gpios(&rx51_av_jack, ARRAY_SIZE(rx51_av_jack_gpios), rx51_av_jack_gpios); if (err) { dev_err(card->dev, "Failed to add GPIOs\n"); return err; } return err; } static int rx51_card_remove(struct snd_soc_card *card) { snd_soc_jack_free_gpios(&rx51_av_jack, ARRAY_SIZE(rx51_av_jack_gpios), rx51_av_jack_gpios); return 0; } /* Digital audio interface glue - connects codec <--> CPU */ static struct snd_soc_dai_link rx51_dai[] = { { .name = "TLV320AIC34", .stream_name = "AIC34", .cpu_dai_name = "omap-mcbsp.2", .codec_dai_name = "tlv320aic3x-hifi", .platform_name = "omap-mcbsp.2", .codec_name = "tlv320aic3x-codec.2-0018", .dai_fmt = SND_SOC_DAIFMT_DSP_A | SND_SOC_DAIFMT_IB_NF | SND_SOC_DAIFMT_CBM_CFM, .init = rx51_aic34_init, .ops = &rx51_ops, }, }; static struct snd_soc_aux_dev rx51_aux_dev[] = { { .name = "TLV320AIC34b", .codec_name = "tlv320aic3x-codec.2-0019", }, }; static struct snd_soc_codec_conf rx51_codec_conf[] = { { .dev_name = "tlv320aic3x-codec.2-0019", .name_prefix = "b", }, }; /* Audio card */ static struct snd_soc_card rx51_sound_card = { .name = "RX-51", .owner = THIS_MODULE, .remove = rx51_card_remove, .dai_link = rx51_dai, .num_links = ARRAY_SIZE(rx51_dai), .aux_dev = rx51_aux_dev, .num_aux_devs = ARRAY_SIZE(rx51_aux_dev), .codec_conf = rx51_codec_conf, .num_configs = ARRAY_SIZE(rx51_codec_conf), .controls = aic34_rx51_controls, .num_controls = ARRAY_SIZE(aic34_rx51_controls), .dapm_widgets = aic34_dapm_widgets, .num_dapm_widgets = ARRAY_SIZE(aic34_dapm_widgets), .dapm_routes = audio_map, .num_dapm_routes = ARRAY_SIZE(audio_map), }; static int rx51_soc_probe(struct platform_device *pdev) { struct rx51_audio_pdata *pdata; struct device_node *np = pdev->dev.of_node; struct snd_soc_card *card = &rx51_sound_card; int err; if (!machine_is_nokia_rx51() && !of_machine_is_compatible("nokia,omap3-n900")) return -ENODEV; card->dev = &pdev->dev; if (np) { struct device_node *dai_node; dai_node = of_parse_phandle(np, "nokia,cpu-dai", 0); if (!dai_node) { dev_err(&pdev->dev, "McBSP node is not provided\n"); return -EINVAL; } rx51_dai[0].cpu_dai_name = NULL; rx51_dai[0].platform_name = NULL; rx51_dai[0].cpu_of_node = dai_node; rx51_dai[0].platform_of_node = dai_node; dai_node = of_parse_phandle(np, "nokia,audio-codec", 0); if (!dai_node) { dev_err(&pdev->dev, "Codec node is not provided\n"); return -EINVAL; } rx51_dai[0].codec_name = NULL; rx51_dai[0].codec_of_node = dai_node; dai_node = of_parse_phandle(np, "nokia,audio-codec", 1); if (!dai_node) { dev_err(&pdev->dev, "Auxiliary Codec node is not provided\n"); return -EINVAL; } rx51_aux_dev[0].codec_name = NULL; rx51_aux_dev[0].codec_of_node = dai_node; rx51_codec_conf[0].dev_name = NULL; rx51_codec_conf[0].of_node = dai_node; dai_node = of_parse_phandle(np, "nokia,headphone-amplifier", 0); if (!dai_node) { dev_err(&pdev->dev, "Headphone amplifier node is not provided\n"); return -EINVAL; } /* TODO: tpa6130a2a driver supports only a single instance, so * this driver ignores the headphone-amplifier node for now. * It's already mandatory in the DT binding to be future proof. */ } pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL); if (pdata == NULL) { dev_err(card->dev, "failed to create private data\n"); return -ENOMEM; } snd_soc_card_set_drvdata(card, pdata); pdata->tvout_selection_gpio = devm_gpiod_get(card->dev, "tvout-selection"); if (IS_ERR(pdata->tvout_selection_gpio)) { dev_err(card->dev, "could not get tvout selection gpio\n"); return PTR_ERR(pdata->tvout_selection_gpio); } err = gpiod_direction_output(pdata->tvout_selection_gpio, 0); if (err) { dev_err(card->dev, "could not setup tvout selection gpio\n"); return err; } pdata->jack_detection_gpio = devm_gpiod_get(card->dev, "jack-detection"); if (IS_ERR(pdata->jack_detection_gpio)) { dev_err(card->dev, "could not get jack detection gpio\n"); return PTR_ERR(pdata->jack_detection_gpio); } pdata->eci_sw_gpio = devm_gpiod_get(card->dev, "eci-switch"); if (IS_ERR(pdata->eci_sw_gpio)) { dev_err(card->dev, "could not get eci switch gpio\n"); return PTR_ERR(pdata->eci_sw_gpio); } err = gpiod_direction_output(pdata->eci_sw_gpio, 1); if (err) { dev_err(card->dev, "could not setup eci switch gpio\n"); return err; } pdata->speaker_amp_gpio = devm_gpiod_get(card->dev, "speaker-amplifier"); if (IS_ERR(pdata->speaker_amp_gpio)) { dev_err(card->dev, "could not get speaker enable gpio\n"); return PTR_ERR(pdata->speaker_amp_gpio); } err = gpiod_direction_output(pdata->speaker_amp_gpio, 0); if (err) { dev_err(card->dev, "could not setup speaker enable gpio\n"); return err; } err = devm_snd_soc_register_card(card->dev, card); if (err) { dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n", err); return err; } return 0; } #if defined(CONFIG_OF) static const struct of_device_id rx51_audio_of_match[] = { { .compatible = "nokia,n900-audio", }, {}, }; MODULE_DEVICE_TABLE(of, rx51_audio_of_match); #endif static struct platform_driver rx51_soc_driver = { .driver = { .name = "rx51-audio", .owner = THIS_MODULE, .of_match_table = of_match_ptr(rx51_audio_of_match), }, .probe = rx51_soc_probe, }; module_platform_driver(rx51_soc_driver); MODULE_AUTHOR("Nokia Corporation"); MODULE_DESCRIPTION("ALSA SoC Nokia RX-51"); MODULE_LICENSE("GPL"); MODULE_ALIAS("platform:rx51-audio");