--- /dev/null
+/*
+ * 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, "DMic"},
+ {"DMic", NULL, "Mic Bias"},
+
+ {"b LINE2R", NULL, "MONO_LOUT"},
+ {"Earphone", NULL, "b HPLOUT"},
+
+ {"LINE1L", NULL, "HS Mic"},
+ {"HS Mic", NULL, "b Mic Bias"},
+};
+
+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_card_jack_new(rtd->card, "AV Jack",
+ SND_JACK_HEADSET | SND_JACK_VIDEOOUT,
+ &rx51_av_jack, NULL, 0);
+ 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",
+ .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");
Code Review / kvmfornfv.git / blobdiff