1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * rx51.c -- SoC audio for Nokia RX-51
4 *
5 * Copyright (C) 2008 - 2009 Nokia Corporation
6 *
7 * Contact: Peter Ujfalusi <peter.ujfalusi@ti.com>
8 * Eduardo Valentin <eduardo.valentin@nokia.com>
9 * Jarkko Nikula <jarkko.nikula@bitmer.com>
10 */
11
12 #include <linux/delay.h>
13 #include <linux/gpio.h>
14 #include <linux/platform_device.h>
15 #include <linux/gpio/consumer.h>
16 #include <linux/module.h>
17 #include <sound/core.h>
18 #include <sound/jack.h>
19 #include <sound/pcm.h>
20 #include <sound/soc.h>
21 #include <linux/platform_data/asoc-ti-mcbsp.h>
22
23 #include <asm/mach-types.h>
24
25 #include "omap-mcbsp.h"
26
27 enum {
28 RX51_JACK_DISABLED,
29 RX51_JACK_TVOUT, /* tv-out with stereo output */
30 RX51_JACK_HP, /* headphone: stereo output, no mic */
31 RX51_JACK_HS, /* headset: stereo output with mic */
32 };
33
34 struct rx51_audio_pdata {
35 struct gpio_desc *tvout_selection_gpio;
36 struct gpio_desc *jack_detection_gpio;
37 struct gpio_desc *eci_sw_gpio;
38 struct gpio_desc *speaker_amp_gpio;
39 };
40
41 static int rx51_spk_func;
42 static int rx51_dmic_func;
43 static int rx51_jack_func;
44
rx51_ext_control(struct snd_soc_dapm_context * dapm)45 static void rx51_ext_control(struct snd_soc_dapm_context *dapm)
46 {
47 struct snd_soc_card *card = dapm->card;
48 struct rx51_audio_pdata *pdata = snd_soc_card_get_drvdata(card);
49 int hp = 0, hs = 0, tvout = 0;
50
51 switch (rx51_jack_func) {
52 case RX51_JACK_TVOUT:
53 tvout = 1;
54 hp = 1;
55 break;
56 case RX51_JACK_HS:
57 hs = 1;
58 fallthrough;
59 case RX51_JACK_HP:
60 hp = 1;
61 break;
62 }
63
64 snd_soc_dapm_mutex_lock(dapm);
65
66 if (rx51_spk_func)
67 snd_soc_dapm_enable_pin_unlocked(dapm, "Ext Spk");
68 else
69 snd_soc_dapm_disable_pin_unlocked(dapm, "Ext Spk");
70 if (rx51_dmic_func)
71 snd_soc_dapm_enable_pin_unlocked(dapm, "DMic");
72 else
73 snd_soc_dapm_disable_pin_unlocked(dapm, "DMic");
74 if (hp)
75 snd_soc_dapm_enable_pin_unlocked(dapm, "Headphone Jack");
76 else
77 snd_soc_dapm_disable_pin_unlocked(dapm, "Headphone Jack");
78 if (hs)
79 snd_soc_dapm_enable_pin_unlocked(dapm, "HS Mic");
80 else
81 snd_soc_dapm_disable_pin_unlocked(dapm, "HS Mic");
82
83 gpiod_set_value(pdata->tvout_selection_gpio, tvout);
84
85 snd_soc_dapm_sync_unlocked(dapm);
86
87 snd_soc_dapm_mutex_unlock(dapm);
88 }
89
rx51_startup(struct snd_pcm_substream * substream)90 static int rx51_startup(struct snd_pcm_substream *substream)
91 {
92 struct snd_pcm_runtime *runtime = substream->runtime;
93 struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
94 struct snd_soc_card *card = rtd->card;
95
96 snd_pcm_hw_constraint_single(runtime, SNDRV_PCM_HW_PARAM_CHANNELS, 2);
97 rx51_ext_control(&card->dapm);
98
99 return 0;
100 }
101
rx51_hw_params(struct snd_pcm_substream * substream,struct snd_pcm_hw_params * params)102 static int rx51_hw_params(struct snd_pcm_substream *substream,
103 struct snd_pcm_hw_params *params)
104 {
105 struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
106 struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
107
108 /* Set the codec system clock for DAC and ADC */
109 return snd_soc_dai_set_sysclk(codec_dai, 0, 19200000,
110 SND_SOC_CLOCK_IN);
111 }
112
113 static const struct snd_soc_ops rx51_ops = {
114 .startup = rx51_startup,
115 .hw_params = rx51_hw_params,
116 };
117
rx51_get_spk(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)118 static int rx51_get_spk(struct snd_kcontrol *kcontrol,
119 struct snd_ctl_elem_value *ucontrol)
120 {
121 ucontrol->value.enumerated.item[0] = rx51_spk_func;
122
123 return 0;
124 }
125
rx51_set_spk(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)126 static int rx51_set_spk(struct snd_kcontrol *kcontrol,
127 struct snd_ctl_elem_value *ucontrol)
128 {
129 struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
130
131 if (rx51_spk_func == ucontrol->value.enumerated.item[0])
132 return 0;
133
134 rx51_spk_func = ucontrol->value.enumerated.item[0];
135 rx51_ext_control(&card->dapm);
136
137 return 1;
138 }
139
rx51_spk_event(struct snd_soc_dapm_widget * w,struct snd_kcontrol * k,int event)140 static int rx51_spk_event(struct snd_soc_dapm_widget *w,
141 struct snd_kcontrol *k, int event)
142 {
143 struct snd_soc_dapm_context *dapm = w->dapm;
144 struct snd_soc_card *card = dapm->card;
145 struct rx51_audio_pdata *pdata = snd_soc_card_get_drvdata(card);
146
147 gpiod_set_raw_value_cansleep(pdata->speaker_amp_gpio,
148 !!SND_SOC_DAPM_EVENT_ON(event));
149
150 return 0;
151 }
152
rx51_get_input(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)153 static int rx51_get_input(struct snd_kcontrol *kcontrol,
154 struct snd_ctl_elem_value *ucontrol)
155 {
156 ucontrol->value.enumerated.item[0] = rx51_dmic_func;
157
158 return 0;
159 }
160
rx51_set_input(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)161 static int rx51_set_input(struct snd_kcontrol *kcontrol,
162 struct snd_ctl_elem_value *ucontrol)
163 {
164 struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
165
166 if (rx51_dmic_func == ucontrol->value.enumerated.item[0])
167 return 0;
168
169 rx51_dmic_func = ucontrol->value.enumerated.item[0];
170 rx51_ext_control(&card->dapm);
171
172 return 1;
173 }
174
rx51_get_jack(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)175 static int rx51_get_jack(struct snd_kcontrol *kcontrol,
176 struct snd_ctl_elem_value *ucontrol)
177 {
178 ucontrol->value.enumerated.item[0] = rx51_jack_func;
179
180 return 0;
181 }
182
rx51_set_jack(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)183 static int rx51_set_jack(struct snd_kcontrol *kcontrol,
184 struct snd_ctl_elem_value *ucontrol)
185 {
186 struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
187
188 if (rx51_jack_func == ucontrol->value.enumerated.item[0])
189 return 0;
190
191 rx51_jack_func = ucontrol->value.enumerated.item[0];
192 rx51_ext_control(&card->dapm);
193
194 return 1;
195 }
196
197 static struct snd_soc_jack rx51_av_jack;
198
199 static struct snd_soc_jack_gpio rx51_av_jack_gpios[] = {
200 {
201 .name = "avdet-gpio",
202 .report = SND_JACK_HEADSET,
203 .invert = 1,
204 .debounce_time = 200,
205 },
206 };
207
208 static const struct snd_soc_dapm_widget aic34_dapm_widgets[] = {
209 SND_SOC_DAPM_SPK("Ext Spk", rx51_spk_event),
210 SND_SOC_DAPM_MIC("DMic", NULL),
211 SND_SOC_DAPM_HP("Headphone Jack", NULL),
212 SND_SOC_DAPM_MIC("HS Mic", NULL),
213 SND_SOC_DAPM_LINE("FM Transmitter", NULL),
214 SND_SOC_DAPM_SPK("Earphone", NULL),
215 };
216
217 static const struct snd_soc_dapm_route audio_map[] = {
218 {"Ext Spk", NULL, "HPLOUT"},
219 {"Ext Spk", NULL, "HPROUT"},
220 {"Ext Spk", NULL, "HPLCOM"},
221 {"Ext Spk", NULL, "HPRCOM"},
222 {"FM Transmitter", NULL, "LLOUT"},
223 {"FM Transmitter", NULL, "RLOUT"},
224
225 {"Headphone Jack", NULL, "TPA6130A2 HPLEFT"},
226 {"Headphone Jack", NULL, "TPA6130A2 HPRIGHT"},
227 {"TPA6130A2 LEFTIN", NULL, "LLOUT"},
228 {"TPA6130A2 RIGHTIN", NULL, "RLOUT"},
229
230 {"DMic Rate 64", NULL, "DMic"},
231 {"DMic", NULL, "Mic Bias"},
232
233 {"b LINE2R", NULL, "MONO_LOUT"},
234 {"Earphone", NULL, "b HPLOUT"},
235
236 {"LINE1L", NULL, "HS Mic"},
237 {"HS Mic", NULL, "b Mic Bias"},
238 };
239
240 static const char * const spk_function[] = {"Off", "On"};
241 static const char * const input_function[] = {"ADC", "Digital Mic"};
242 static const char * const jack_function[] = {
243 "Off", "TV-OUT", "Headphone", "Headset"
244 };
245
246 static const struct soc_enum rx51_enum[] = {
247 SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(spk_function), spk_function),
248 SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(input_function), input_function),
249 SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(jack_function), jack_function),
250 };
251
252 static const struct snd_kcontrol_new aic34_rx51_controls[] = {
253 SOC_ENUM_EXT("Speaker Function", rx51_enum[0],
254 rx51_get_spk, rx51_set_spk),
255 SOC_ENUM_EXT("Input Select", rx51_enum[1],
256 rx51_get_input, rx51_set_input),
257 SOC_ENUM_EXT("Jack Function", rx51_enum[2],
258 rx51_get_jack, rx51_set_jack),
259 SOC_DAPM_PIN_SWITCH("FM Transmitter"),
260 SOC_DAPM_PIN_SWITCH("Earphone"),
261 };
262
rx51_aic34_init(struct snd_soc_pcm_runtime * rtd)263 static int rx51_aic34_init(struct snd_soc_pcm_runtime *rtd)
264 {
265 struct snd_soc_card *card = rtd->card;
266 struct rx51_audio_pdata *pdata = snd_soc_card_get_drvdata(card);
267 int err;
268
269 snd_soc_limit_volume(card, "TPA6130A2 Headphone Playback Volume", 42);
270
271 err = omap_mcbsp_st_add_controls(rtd, 2);
272 if (err < 0) {
273 dev_err(card->dev, "Failed to add MCBSP controls\n");
274 return err;
275 }
276
277 /* AV jack detection */
278 err = snd_soc_card_jack_new(rtd->card, "AV Jack",
279 SND_JACK_HEADSET | SND_JACK_VIDEOOUT,
280 &rx51_av_jack, NULL, 0);
281 if (err) {
282 dev_err(card->dev, "Failed to add AV Jack\n");
283 return err;
284 }
285
286 /* prepare gpio for snd_soc_jack_add_gpios */
287 rx51_av_jack_gpios[0].gpio = desc_to_gpio(pdata->jack_detection_gpio);
288 devm_gpiod_put(card->dev, pdata->jack_detection_gpio);
289
290 err = snd_soc_jack_add_gpios(&rx51_av_jack,
291 ARRAY_SIZE(rx51_av_jack_gpios),
292 rx51_av_jack_gpios);
293 if (err) {
294 dev_err(card->dev, "Failed to add GPIOs\n");
295 return err;
296 }
297
298 return err;
299 }
300
301 /* Digital audio interface glue - connects codec <--> CPU */
302 SND_SOC_DAILINK_DEFS(aic34,
303 DAILINK_COMP_ARRAY(COMP_CPU("omap-mcbsp.2")),
304 DAILINK_COMP_ARRAY(COMP_CODEC("tlv320aic3x-codec.2-0018",
305 "tlv320aic3x-hifi")),
306 DAILINK_COMP_ARRAY(COMP_PLATFORM("omap-mcbsp.2")));
307
308 static struct snd_soc_dai_link rx51_dai[] = {
309 {
310 .name = "TLV320AIC34",
311 .stream_name = "AIC34",
312 .dai_fmt = SND_SOC_DAIFMT_DSP_A | SND_SOC_DAIFMT_IB_NF |
313 SND_SOC_DAIFMT_CBM_CFM,
314 .init = rx51_aic34_init,
315 .ops = &rx51_ops,
316 SND_SOC_DAILINK_REG(aic34),
317 },
318 };
319
320 static struct snd_soc_aux_dev rx51_aux_dev[] = {
321 {
322 .dlc = COMP_AUX("tlv320aic3x-codec.2-0019"),
323 },
324 {
325 .dlc = COMP_AUX("tpa6130a2.2-0060"),
326 },
327 };
328
329 static struct snd_soc_codec_conf rx51_codec_conf[] = {
330 {
331 .dlc = COMP_CODEC_CONF("tlv320aic3x-codec.2-0019"),
332 .name_prefix = "b",
333 },
334 {
335 .dlc = COMP_CODEC_CONF("tpa6130a2.2-0060"),
336 .name_prefix = "TPA6130A2",
337 },
338 };
339
340 /* Audio card */
341 static struct snd_soc_card rx51_sound_card = {
342 .name = "RX-51",
343 .owner = THIS_MODULE,
344 .dai_link = rx51_dai,
345 .num_links = ARRAY_SIZE(rx51_dai),
346 .aux_dev = rx51_aux_dev,
347 .num_aux_devs = ARRAY_SIZE(rx51_aux_dev),
348 .codec_conf = rx51_codec_conf,
349 .num_configs = ARRAY_SIZE(rx51_codec_conf),
350 .fully_routed = true,
351
352 .controls = aic34_rx51_controls,
353 .num_controls = ARRAY_SIZE(aic34_rx51_controls),
354 .dapm_widgets = aic34_dapm_widgets,
355 .num_dapm_widgets = ARRAY_SIZE(aic34_dapm_widgets),
356 .dapm_routes = audio_map,
357 .num_dapm_routes = ARRAY_SIZE(audio_map),
358 };
359
rx51_soc_probe(struct platform_device * pdev)360 static int rx51_soc_probe(struct platform_device *pdev)
361 {
362 struct rx51_audio_pdata *pdata;
363 struct device_node *np = pdev->dev.of_node;
364 struct snd_soc_card *card = &rx51_sound_card;
365 int err;
366
367 if (!machine_is_nokia_rx51() && !of_machine_is_compatible("nokia,omap3-n900"))
368 return -ENODEV;
369
370 card->dev = &pdev->dev;
371
372 if (np) {
373 struct device_node *dai_node;
374
375 dai_node = of_parse_phandle(np, "nokia,cpu-dai", 0);
376 if (!dai_node) {
377 dev_err(&pdev->dev, "McBSP node is not provided\n");
378 return -EINVAL;
379 }
380 rx51_dai[0].cpus->dai_name = NULL;
381 rx51_dai[0].platforms->name = NULL;
382 rx51_dai[0].cpus->of_node = dai_node;
383 rx51_dai[0].platforms->of_node = dai_node;
384
385 dai_node = of_parse_phandle(np, "nokia,audio-codec", 0);
386 if (!dai_node) {
387 dev_err(&pdev->dev, "Codec node is not provided\n");
388 return -EINVAL;
389 }
390 rx51_dai[0].codecs->name = NULL;
391 rx51_dai[0].codecs->of_node = dai_node;
392
393 dai_node = of_parse_phandle(np, "nokia,audio-codec", 1);
394 if (!dai_node) {
395 dev_err(&pdev->dev, "Auxiliary Codec node is not provided\n");
396 return -EINVAL;
397 }
398 rx51_aux_dev[0].dlc.name = NULL;
399 rx51_aux_dev[0].dlc.of_node = dai_node;
400 rx51_codec_conf[0].dlc.name = NULL;
401 rx51_codec_conf[0].dlc.of_node = dai_node;
402
403 dai_node = of_parse_phandle(np, "nokia,headphone-amplifier", 0);
404 if (!dai_node) {
405 dev_err(&pdev->dev, "Headphone amplifier node is not provided\n");
406 return -EINVAL;
407 }
408 rx51_aux_dev[1].dlc.name = NULL;
409 rx51_aux_dev[1].dlc.of_node = dai_node;
410 rx51_codec_conf[1].dlc.name = NULL;
411 rx51_codec_conf[1].dlc.of_node = dai_node;
412 }
413
414 pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
415 if (pdata == NULL)
416 return -ENOMEM;
417
418 snd_soc_card_set_drvdata(card, pdata);
419
420 pdata->tvout_selection_gpio = devm_gpiod_get(card->dev,
421 "tvout-selection",
422 GPIOD_OUT_LOW);
423 if (IS_ERR(pdata->tvout_selection_gpio)) {
424 dev_err(card->dev, "could not get tvout selection gpio\n");
425 return PTR_ERR(pdata->tvout_selection_gpio);
426 }
427
428 pdata->jack_detection_gpio = devm_gpiod_get(card->dev,
429 "jack-detection",
430 GPIOD_ASIS);
431 if (IS_ERR(pdata->jack_detection_gpio)) {
432 dev_err(card->dev, "could not get jack detection gpio\n");
433 return PTR_ERR(pdata->jack_detection_gpio);
434 }
435
436 pdata->eci_sw_gpio = devm_gpiod_get(card->dev, "eci-switch",
437 GPIOD_OUT_HIGH);
438 if (IS_ERR(pdata->eci_sw_gpio)) {
439 dev_err(card->dev, "could not get eci switch gpio\n");
440 return PTR_ERR(pdata->eci_sw_gpio);
441 }
442
443 pdata->speaker_amp_gpio = devm_gpiod_get(card->dev,
444 "speaker-amplifier",
445 GPIOD_OUT_LOW);
446 if (IS_ERR(pdata->speaker_amp_gpio)) {
447 dev_err(card->dev, "could not get speaker enable gpio\n");
448 return PTR_ERR(pdata->speaker_amp_gpio);
449 }
450
451 err = devm_snd_soc_register_card(card->dev, card);
452 if (err) {
453 dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n", err);
454 return err;
455 }
456
457 return 0;
458 }
459
460 #if defined(CONFIG_OF)
461 static const struct of_device_id rx51_audio_of_match[] = {
462 { .compatible = "nokia,n900-audio", },
463 {},
464 };
465 MODULE_DEVICE_TABLE(of, rx51_audio_of_match);
466 #endif
467
468 static struct platform_driver rx51_soc_driver = {
469 .driver = {
470 .name = "rx51-audio",
471 .of_match_table = of_match_ptr(rx51_audio_of_match),
472 },
473 .probe = rx51_soc_probe,
474 };
475
476 module_platform_driver(rx51_soc_driver);
477
478 MODULE_AUTHOR("Nokia Corporation");
479 MODULE_DESCRIPTION("ALSA SoC Nokia RX-51");
480 MODULE_LICENSE("GPL");
481 MODULE_ALIAS("platform:rx51-audio");
482