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