2 * rx51.c -- SoC audio for Nokia RX-51
4 * Copyright (C) 2008 - 2009 Nokia Corporation
6 * Contact: Peter Ujfalusi <peter.ujfalusi@ti.com>
7 * Eduardo Valentin <eduardo.valentin@nokia.com>
8 * Jarkko Nikula <jarkko.nikula@bitmer.com>
10 * This program is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU General Public License
12 * version 2 as published by the Free Software Foundation.
14 * This program is distributed in the hope that it will be useful, but
15 * WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
26 #include <linux/delay.h>
27 #include <linux/gpio.h>
28 #include <linux/platform_device.h>
29 #include <linux/gpio/consumer.h>
30 #include <linux/module.h>
31 #include <sound/core.h>
32 #include <sound/jack.h>
33 #include <sound/pcm.h>
34 #include <sound/soc.h>
35 #include <linux/platform_data/asoc-ti-mcbsp.h>
36 #include "../codecs/tpa6130a2.h"
38 #include <asm/mach-types.h>
40 #include "omap-mcbsp.h"
44 RX51_JACK_TVOUT, /* tv-out with stereo output */
45 RX51_JACK_HP, /* headphone: stereo output, no mic */
46 RX51_JACK_HS, /* headset: stereo output with mic */
49 struct rx51_audio_pdata {
50 struct gpio_desc *tvout_selection_gpio;
51 struct gpio_desc *jack_detection_gpio;
52 struct gpio_desc *eci_sw_gpio;
53 struct gpio_desc *speaker_amp_gpio;
56 static int rx51_spk_func;
57 static int rx51_dmic_func;
58 static int rx51_jack_func;
60 static void rx51_ext_control(struct snd_soc_dapm_context *dapm)
62 struct snd_soc_card *card = dapm->card;
63 struct rx51_audio_pdata *pdata = snd_soc_card_get_drvdata(card);
64 int hp = 0, hs = 0, tvout = 0;
66 switch (rx51_jack_func) {
78 snd_soc_dapm_mutex_lock(dapm);
81 snd_soc_dapm_enable_pin_unlocked(dapm, "Ext Spk");
83 snd_soc_dapm_disable_pin_unlocked(dapm, "Ext Spk");
85 snd_soc_dapm_enable_pin_unlocked(dapm, "DMic");
87 snd_soc_dapm_disable_pin_unlocked(dapm, "DMic");
89 snd_soc_dapm_enable_pin_unlocked(dapm, "Headphone Jack");
91 snd_soc_dapm_disable_pin_unlocked(dapm, "Headphone Jack");
93 snd_soc_dapm_enable_pin_unlocked(dapm, "HS Mic");
95 snd_soc_dapm_disable_pin_unlocked(dapm, "HS Mic");
97 gpiod_set_value(pdata->tvout_selection_gpio, tvout);
99 snd_soc_dapm_sync_unlocked(dapm);
101 snd_soc_dapm_mutex_unlock(dapm);
104 static int rx51_startup(struct snd_pcm_substream *substream)
106 struct snd_pcm_runtime *runtime = substream->runtime;
107 struct snd_soc_pcm_runtime *rtd = substream->private_data;
108 struct snd_soc_card *card = rtd->card;
110 snd_pcm_hw_constraint_minmax(runtime,
111 SNDRV_PCM_HW_PARAM_CHANNELS, 2, 2);
112 rx51_ext_control(&card->dapm);
117 static int rx51_hw_params(struct snd_pcm_substream *substream,
118 struct snd_pcm_hw_params *params)
120 struct snd_soc_pcm_runtime *rtd = substream->private_data;
121 struct snd_soc_dai *codec_dai = rtd->codec_dai;
123 /* Set the codec system clock for DAC and ADC */
124 return snd_soc_dai_set_sysclk(codec_dai, 0, 19200000,
128 static struct snd_soc_ops rx51_ops = {
129 .startup = rx51_startup,
130 .hw_params = rx51_hw_params,
133 static int rx51_get_spk(struct snd_kcontrol *kcontrol,
134 struct snd_ctl_elem_value *ucontrol)
136 ucontrol->value.integer.value[0] = rx51_spk_func;
141 static int rx51_set_spk(struct snd_kcontrol *kcontrol,
142 struct snd_ctl_elem_value *ucontrol)
144 struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
146 if (rx51_spk_func == ucontrol->value.integer.value[0])
149 rx51_spk_func = ucontrol->value.integer.value[0];
150 rx51_ext_control(&card->dapm);
155 static int rx51_spk_event(struct snd_soc_dapm_widget *w,
156 struct snd_kcontrol *k, int event)
158 struct snd_soc_dapm_context *dapm = w->dapm;
159 struct snd_soc_card *card = dapm->card;
160 struct rx51_audio_pdata *pdata = snd_soc_card_get_drvdata(card);
162 gpiod_set_raw_value_cansleep(pdata->speaker_amp_gpio,
163 !!SND_SOC_DAPM_EVENT_ON(event));
168 static int rx51_hp_event(struct snd_soc_dapm_widget *w,
169 struct snd_kcontrol *k, int event)
171 struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm);
173 if (SND_SOC_DAPM_EVENT_ON(event))
174 tpa6130a2_stereo_enable(codec, 1);
176 tpa6130a2_stereo_enable(codec, 0);
181 static int rx51_get_input(struct snd_kcontrol *kcontrol,
182 struct snd_ctl_elem_value *ucontrol)
184 ucontrol->value.integer.value[0] = rx51_dmic_func;
189 static int rx51_set_input(struct snd_kcontrol *kcontrol,
190 struct snd_ctl_elem_value *ucontrol)
192 struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
194 if (rx51_dmic_func == ucontrol->value.integer.value[0])
197 rx51_dmic_func = ucontrol->value.integer.value[0];
198 rx51_ext_control(&card->dapm);
203 static int rx51_get_jack(struct snd_kcontrol *kcontrol,
204 struct snd_ctl_elem_value *ucontrol)
206 ucontrol->value.integer.value[0] = rx51_jack_func;
211 static int rx51_set_jack(struct snd_kcontrol *kcontrol,
212 struct snd_ctl_elem_value *ucontrol)
214 struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
216 if (rx51_jack_func == ucontrol->value.integer.value[0])
219 rx51_jack_func = ucontrol->value.integer.value[0];
220 rx51_ext_control(&card->dapm);
225 static struct snd_soc_jack rx51_av_jack;
227 static struct snd_soc_jack_gpio rx51_av_jack_gpios[] = {
229 .name = "avdet-gpio",
230 .report = SND_JACK_HEADSET,
232 .debounce_time = 200,
236 static const struct snd_soc_dapm_widget aic34_dapm_widgets[] = {
237 SND_SOC_DAPM_SPK("Ext Spk", rx51_spk_event),
238 SND_SOC_DAPM_MIC("DMic", NULL),
239 SND_SOC_DAPM_HP("Headphone Jack", rx51_hp_event),
240 SND_SOC_DAPM_MIC("HS Mic", NULL),
241 SND_SOC_DAPM_LINE("FM Transmitter", NULL),
242 SND_SOC_DAPM_SPK("Earphone", NULL),
245 static const struct snd_soc_dapm_route audio_map[] = {
246 {"Ext Spk", NULL, "HPLOUT"},
247 {"Ext Spk", NULL, "HPROUT"},
248 {"Ext Spk", NULL, "HPLCOM"},
249 {"Ext Spk", NULL, "HPRCOM"},
250 {"Headphone Jack", NULL, "LLOUT"},
251 {"Headphone Jack", NULL, "RLOUT"},
252 {"FM Transmitter", NULL, "LLOUT"},
253 {"FM Transmitter", NULL, "RLOUT"},
255 {"DMic Rate 64", NULL, "DMic"},
256 {"DMic", NULL, "Mic Bias"},
258 {"b LINE2R", NULL, "MONO_LOUT"},
259 {"Earphone", NULL, "b HPLOUT"},
261 {"LINE1L", NULL, "HS Mic"},
262 {"HS Mic", NULL, "b Mic Bias"},
265 static const char * const spk_function[] = {"Off", "On"};
266 static const char * const input_function[] = {"ADC", "Digital Mic"};
267 static const char * const jack_function[] = {
268 "Off", "TV-OUT", "Headphone", "Headset"
271 static const struct soc_enum rx51_enum[] = {
272 SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(spk_function), spk_function),
273 SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(input_function), input_function),
274 SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(jack_function), jack_function),
277 static const struct snd_kcontrol_new aic34_rx51_controls[] = {
278 SOC_ENUM_EXT("Speaker Function", rx51_enum[0],
279 rx51_get_spk, rx51_set_spk),
280 SOC_ENUM_EXT("Input Select", rx51_enum[1],
281 rx51_get_input, rx51_set_input),
282 SOC_ENUM_EXT("Jack Function", rx51_enum[2],
283 rx51_get_jack, rx51_set_jack),
284 SOC_DAPM_PIN_SWITCH("FM Transmitter"),
285 SOC_DAPM_PIN_SWITCH("Earphone"),
288 static int rx51_aic34_init(struct snd_soc_pcm_runtime *rtd)
290 struct snd_soc_codec *codec = rtd->codec;
291 struct snd_soc_card *card = rtd->card;
292 struct rx51_audio_pdata *pdata = snd_soc_card_get_drvdata(card);
295 err = tpa6130a2_add_controls(codec);
297 dev_err(card->dev, "Failed to add TPA6130A2 controls\n");
300 snd_soc_limit_volume(codec, "TPA6130A2 Headphone Playback Volume", 42);
302 err = omap_mcbsp_st_add_controls(rtd, 2);
304 dev_err(card->dev, "Failed to add MCBSP controls\n");
308 /* AV jack detection */
309 err = snd_soc_card_jack_new(rtd->card, "AV Jack",
310 SND_JACK_HEADSET | SND_JACK_VIDEOOUT,
311 &rx51_av_jack, NULL, 0);
313 dev_err(card->dev, "Failed to add AV Jack\n");
317 /* prepare gpio for snd_soc_jack_add_gpios */
318 rx51_av_jack_gpios[0].gpio = desc_to_gpio(pdata->jack_detection_gpio);
319 devm_gpiod_put(card->dev, pdata->jack_detection_gpio);
321 err = snd_soc_jack_add_gpios(&rx51_av_jack,
322 ARRAY_SIZE(rx51_av_jack_gpios),
325 dev_err(card->dev, "Failed to add GPIOs\n");
332 static int rx51_card_remove(struct snd_soc_card *card)
334 snd_soc_jack_free_gpios(&rx51_av_jack, ARRAY_SIZE(rx51_av_jack_gpios),
340 /* Digital audio interface glue - connects codec <--> CPU */
341 static struct snd_soc_dai_link rx51_dai[] = {
343 .name = "TLV320AIC34",
344 .stream_name = "AIC34",
345 .cpu_dai_name = "omap-mcbsp.2",
346 .codec_dai_name = "tlv320aic3x-hifi",
347 .platform_name = "omap-mcbsp.2",
348 .codec_name = "tlv320aic3x-codec.2-0018",
349 .dai_fmt = SND_SOC_DAIFMT_DSP_A | SND_SOC_DAIFMT_IB_NF |
350 SND_SOC_DAIFMT_CBM_CFM,
351 .init = rx51_aic34_init,
356 static struct snd_soc_aux_dev rx51_aux_dev[] = {
358 .name = "TLV320AIC34b",
359 .codec_name = "tlv320aic3x-codec.2-0019",
363 static struct snd_soc_codec_conf rx51_codec_conf[] = {
365 .dev_name = "tlv320aic3x-codec.2-0019",
371 static struct snd_soc_card rx51_sound_card = {
373 .owner = THIS_MODULE,
374 .remove = rx51_card_remove,
375 .dai_link = rx51_dai,
376 .num_links = ARRAY_SIZE(rx51_dai),
377 .aux_dev = rx51_aux_dev,
378 .num_aux_devs = ARRAY_SIZE(rx51_aux_dev),
379 .codec_conf = rx51_codec_conf,
380 .num_configs = ARRAY_SIZE(rx51_codec_conf),
381 .fully_routed = true,
383 .controls = aic34_rx51_controls,
384 .num_controls = ARRAY_SIZE(aic34_rx51_controls),
385 .dapm_widgets = aic34_dapm_widgets,
386 .num_dapm_widgets = ARRAY_SIZE(aic34_dapm_widgets),
387 .dapm_routes = audio_map,
388 .num_dapm_routes = ARRAY_SIZE(audio_map),
391 static int rx51_soc_probe(struct platform_device *pdev)
393 struct rx51_audio_pdata *pdata;
394 struct device_node *np = pdev->dev.of_node;
395 struct snd_soc_card *card = &rx51_sound_card;
398 if (!machine_is_nokia_rx51() && !of_machine_is_compatible("nokia,omap3-n900"))
401 card->dev = &pdev->dev;
404 struct device_node *dai_node;
406 dai_node = of_parse_phandle(np, "nokia,cpu-dai", 0);
408 dev_err(&pdev->dev, "McBSP node is not provided\n");
411 rx51_dai[0].cpu_dai_name = NULL;
412 rx51_dai[0].platform_name = NULL;
413 rx51_dai[0].cpu_of_node = dai_node;
414 rx51_dai[0].platform_of_node = dai_node;
416 dai_node = of_parse_phandle(np, "nokia,audio-codec", 0);
418 dev_err(&pdev->dev, "Codec node is not provided\n");
421 rx51_dai[0].codec_name = NULL;
422 rx51_dai[0].codec_of_node = dai_node;
424 dai_node = of_parse_phandle(np, "nokia,audio-codec", 1);
426 dev_err(&pdev->dev, "Auxiliary Codec node is not provided\n");
429 rx51_aux_dev[0].codec_name = NULL;
430 rx51_aux_dev[0].codec_of_node = dai_node;
431 rx51_codec_conf[0].dev_name = NULL;
432 rx51_codec_conf[0].of_node = dai_node;
434 dai_node = of_parse_phandle(np, "nokia,headphone-amplifier", 0);
436 dev_err(&pdev->dev, "Headphone amplifier node is not provided\n");
440 /* TODO: tpa6130a2a driver supports only a single instance, so
441 * this driver ignores the headphone-amplifier node for now.
442 * It's already mandatory in the DT binding to be future proof.
446 pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
448 dev_err(card->dev, "failed to create private data\n");
451 snd_soc_card_set_drvdata(card, pdata);
453 pdata->tvout_selection_gpio = devm_gpiod_get(card->dev,
456 if (IS_ERR(pdata->tvout_selection_gpio)) {
457 dev_err(card->dev, "could not get tvout selection gpio\n");
458 return PTR_ERR(pdata->tvout_selection_gpio);
461 pdata->jack_detection_gpio = devm_gpiod_get(card->dev,
464 if (IS_ERR(pdata->jack_detection_gpio)) {
465 dev_err(card->dev, "could not get jack detection gpio\n");
466 return PTR_ERR(pdata->jack_detection_gpio);
469 pdata->eci_sw_gpio = devm_gpiod_get(card->dev, "eci-switch",
471 if (IS_ERR(pdata->eci_sw_gpio)) {
472 dev_err(card->dev, "could not get eci switch gpio\n");
473 return PTR_ERR(pdata->eci_sw_gpio);
476 pdata->speaker_amp_gpio = devm_gpiod_get(card->dev,
479 if (IS_ERR(pdata->speaker_amp_gpio)) {
480 dev_err(card->dev, "could not get speaker enable gpio\n");
481 return PTR_ERR(pdata->speaker_amp_gpio);
484 err = devm_snd_soc_register_card(card->dev, card);
486 dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n", err);
493 #if defined(CONFIG_OF)
494 static const struct of_device_id rx51_audio_of_match[] = {
495 { .compatible = "nokia,n900-audio", },
498 MODULE_DEVICE_TABLE(of, rx51_audio_of_match);
501 static struct platform_driver rx51_soc_driver = {
503 .name = "rx51-audio",
504 .of_match_table = of_match_ptr(rx51_audio_of_match),
506 .probe = rx51_soc_probe,
509 module_platform_driver(rx51_soc_driver);
511 MODULE_AUTHOR("Nokia Corporation");
512 MODULE_DESCRIPTION("ALSA SoC Nokia RX-51");
513 MODULE_LICENSE("GPL");
514 MODULE_ALIAS("platform:rx51-audio");