1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3  * Rockchip machine ASoC driver for boards using a MAX90809 CODEC.
4  *
5  * Copyright (c) 2014, ROCKCHIP CORPORATION.  All rights reserved.
6  */
7 
8 #include <linux/module.h>
9 #include <linux/of_device.h>
10 #include <linux/platform_device.h>
11 #include <linux/slab.h>
12 #include <linux/gpio.h>
13 #include <linux/of_gpio.h>
14 #include <sound/core.h>
15 #include <sound/hdmi-codec.h>
16 #include <sound/jack.h>
17 #include <sound/pcm.h>
18 #include <sound/pcm_params.h>
19 #include <sound/soc.h>
20 
21 #include "rockchip_i2s.h"
22 #include "../codecs/ts3a227e.h"
23 
24 #define DRV_NAME "rockchip-snd-max98090"
25 
26 static struct snd_soc_jack headset_jack;
27 
28 /* Headset jack detection DAPM pins */
29 static struct snd_soc_jack_pin headset_jack_pins[] = {
30 	{
31 		.pin = "Headphone",
32 		.mask = SND_JACK_HEADPHONE,
33 	},
34 	{
35 		.pin = "Headset Mic",
36 		.mask = SND_JACK_MICROPHONE,
37 	},
38 
39 };
40 
41 #define RK_MAX98090_WIDGETS \
42 	SND_SOC_DAPM_HP("Headphone", NULL), \
43 	SND_SOC_DAPM_MIC("Headset Mic", NULL), \
44 	SND_SOC_DAPM_MIC("Int Mic", NULL), \
45 	SND_SOC_DAPM_SPK("Speaker", NULL)
46 
47 #define RK_HDMI_WIDGETS \
48 	SND_SOC_DAPM_LINE("HDMI", NULL)
49 
50 static const struct snd_soc_dapm_widget rk_max98090_dapm_widgets[] = {
51 	RK_MAX98090_WIDGETS,
52 };
53 
54 static const struct snd_soc_dapm_widget rk_hdmi_dapm_widgets[] = {
55 	RK_HDMI_WIDGETS,
56 };
57 
58 static const struct snd_soc_dapm_widget rk_max98090_hdmi_dapm_widgets[] = {
59 	RK_MAX98090_WIDGETS,
60 	RK_HDMI_WIDGETS,
61 };
62 
63 #define RK_MAX98090_AUDIO_MAP \
64 	{"IN34", NULL, "Headset Mic"}, \
65 	{"Headset Mic", NULL, "MICBIAS"}, \
66 	{"DMICL", NULL, "Int Mic"}, \
67 	{"Headphone", NULL, "HPL"}, \
68 	{"Headphone", NULL, "HPR"}, \
69 	{"Speaker", NULL, "SPKL"}, \
70 	{"Speaker", NULL, "SPKR"}
71 
72 #define RK_HDMI_AUDIO_MAP \
73 	{"HDMI", NULL, "TX"}
74 
75 static const struct snd_soc_dapm_route rk_max98090_audio_map[] = {
76 	RK_MAX98090_AUDIO_MAP,
77 };
78 
79 static const struct snd_soc_dapm_route rk_hdmi_audio_map[] = {
80 	RK_HDMI_AUDIO_MAP,
81 };
82 
83 static const struct snd_soc_dapm_route rk_max98090_hdmi_audio_map[] = {
84 	RK_MAX98090_AUDIO_MAP,
85 	RK_HDMI_AUDIO_MAP,
86 };
87 
88 #define RK_MAX98090_CONTROLS \
89 	SOC_DAPM_PIN_SWITCH("Headphone"), \
90 	SOC_DAPM_PIN_SWITCH("Headset Mic"), \
91 	SOC_DAPM_PIN_SWITCH("Int Mic"), \
92 	SOC_DAPM_PIN_SWITCH("Speaker")
93 
94 #define RK_HDMI_CONTROLS \
95 	SOC_DAPM_PIN_SWITCH("HDMI")
96 
97 static const struct snd_kcontrol_new rk_max98090_controls[] = {
98 	RK_MAX98090_CONTROLS,
99 };
100 
101 static const struct snd_kcontrol_new rk_hdmi_controls[] = {
102 	RK_HDMI_CONTROLS,
103 };
104 
105 static const struct snd_kcontrol_new rk_max98090_hdmi_controls[] = {
106 	RK_MAX98090_CONTROLS,
107 	RK_HDMI_CONTROLS,
108 };
109 
110 static int rk_jack_event(struct notifier_block *nb, unsigned long event,
111 			 void *data)
112 {
113 	struct snd_soc_jack *jack = (struct snd_soc_jack *)data;
114 	struct snd_soc_dapm_context *dapm = &jack->card->dapm;
115 
116 	if (event & SND_JACK_MICROPHONE) {
117 		snd_soc_dapm_force_enable_pin(dapm, "MICBIAS");
118 		snd_soc_dapm_force_enable_pin(dapm, "SHDN");
119 	} else {
120 		snd_soc_dapm_disable_pin(dapm, "MICBIAS");
121 		snd_soc_dapm_disable_pin(dapm, "SHDN");
122 	}
123 
124 	snd_soc_dapm_sync(dapm);
125 
126 	return 0;
127 }
128 
129 static struct notifier_block rk_jack_nb = {
130 	.notifier_call = rk_jack_event,
131 };
132 
133 static int rk_init(struct snd_soc_pcm_runtime *runtime)
134 {
135 	/*
136 	 * The jack has already been created in the rk_98090_headset_init()
137 	 * function.
138 	 */
139 	snd_soc_jack_notifier_register(&headset_jack, &rk_jack_nb);
140 
141 	return 0;
142 }
143 
144 static int rk_aif1_hw_params(struct snd_pcm_substream *substream,
145 			     struct snd_pcm_hw_params *params)
146 {
147 	int ret = 0;
148 	struct snd_soc_pcm_runtime *rtd = substream->private_data;
149 	struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
150 	struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
151 	int mclk;
152 
153 	switch (params_rate(params)) {
154 	case 8000:
155 	case 16000:
156 	case 24000:
157 	case 32000:
158 	case 48000:
159 	case 64000:
160 	case 96000:
161 		mclk = 12288000;
162 		break;
163 	case 11025:
164 	case 22050:
165 	case 44100:
166 	case 88200:
167 		mclk = 11289600;
168 		break;
169 	default:
170 		return -EINVAL;
171 	}
172 
173 	ret = snd_soc_dai_set_sysclk(cpu_dai, 0, mclk,
174 				     SND_SOC_CLOCK_OUT);
175 	if (ret) {
176 		dev_err(cpu_dai->dev, "Can't set cpu dai clock %d\n", ret);
177 		return ret;
178 	}
179 
180 	ret = snd_soc_dai_set_sysclk(codec_dai, 0, mclk,
181 				     SND_SOC_CLOCK_IN);
182 
183 	/* HDMI codec dai does not need to set sysclk. */
184 	if (!strcmp(rtd->dai_link->name, "HDMI"))
185 		return 0;
186 
187 	if (ret) {
188 		dev_err(codec_dai->dev, "Can't set codec dai clock %d\n", ret);
189 		return ret;
190 	}
191 
192 	return ret;
193 }
194 
195 static int rk_aif1_startup(struct snd_pcm_substream *substream)
196 {
197 	/*
198 	 * Set period size to 240 because pl330 has issue
199 	 * dealing with larger period in stress testing.
200 	 */
201 	return snd_pcm_hw_constraint_minmax(substream->runtime,
202 			SNDRV_PCM_HW_PARAM_PERIOD_SIZE, 240, 240);
203 }
204 
205 static const struct snd_soc_ops rk_aif1_ops = {
206 	.hw_params = rk_aif1_hw_params,
207 	.startup = rk_aif1_startup,
208 };
209 
210 SND_SOC_DAILINK_DEFS(analog,
211 		     DAILINK_COMP_ARRAY(COMP_EMPTY()),
212 		     DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "HiFi")),
213 		     DAILINK_COMP_ARRAY(COMP_EMPTY()));
214 
215 SND_SOC_DAILINK_DEFS(hdmi,
216 		     DAILINK_COMP_ARRAY(COMP_EMPTY()),
217 		     DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "i2s-hifi")),
218 		     DAILINK_COMP_ARRAY(COMP_EMPTY()));
219 
220 enum {
221 	DAILINK_MAX98090,
222 	DAILINK_HDMI,
223 };
224 
225 static struct snd_soc_jack rk_hdmi_jack;
226 
227 static int rk_hdmi_init(struct snd_soc_pcm_runtime *runtime)
228 {
229 	struct snd_soc_card *card = runtime->card;
230 	struct snd_soc_component *component = asoc_rtd_to_codec(runtime, 0)->component;
231 	int ret;
232 
233 	/* enable jack detection */
234 	ret = snd_soc_card_jack_new(card, "HDMI Jack", SND_JACK_LINEOUT,
235 				    &rk_hdmi_jack, NULL, 0);
236 	if (ret) {
237 		dev_err(card->dev, "Can't new HDMI Jack %d\n", ret);
238 		return ret;
239 	}
240 
241 	return hdmi_codec_set_jack_detect(component, &rk_hdmi_jack);
242 }
243 
244 /* max98090 dai_link */
245 static struct snd_soc_dai_link rk_max98090_dailinks[] = {
246 	{
247 		.name = "max98090",
248 		.stream_name = "Analog",
249 		.init = rk_init,
250 		.ops = &rk_aif1_ops,
251 		/* set max98090 as slave */
252 		.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
253 			SND_SOC_DAIFMT_CBS_CFS,
254 		SND_SOC_DAILINK_REG(analog),
255 	},
256 };
257 
258 /* HDMI codec dai_link */
259 static struct snd_soc_dai_link rk_hdmi_dailinks[] = {
260 	{
261 		.name = "HDMI",
262 		.stream_name = "HDMI",
263 		.init = rk_hdmi_init,
264 		.ops = &rk_aif1_ops,
265 		.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
266 			SND_SOC_DAIFMT_CBS_CFS,
267 		SND_SOC_DAILINK_REG(hdmi),
268 	}
269 };
270 
271 /* max98090 and HDMI codec dai_link */
272 static struct snd_soc_dai_link rk_max98090_hdmi_dailinks[] = {
273 	[DAILINK_MAX98090] = {
274 		.name = "max98090",
275 		.stream_name = "Analog",
276 		.init = rk_init,
277 		.ops = &rk_aif1_ops,
278 		/* set max98090 as slave */
279 		.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
280 			SND_SOC_DAIFMT_CBS_CFS,
281 		SND_SOC_DAILINK_REG(analog),
282 	},
283 	[DAILINK_HDMI] = {
284 		.name = "HDMI",
285 		.stream_name = "HDMI",
286 		.init = rk_hdmi_init,
287 		.ops = &rk_aif1_ops,
288 		.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
289 			SND_SOC_DAIFMT_CBS_CFS,
290 		SND_SOC_DAILINK_REG(hdmi),
291 	}
292 };
293 
294 static int rk_98090_headset_init(struct snd_soc_component *component);
295 
296 static struct snd_soc_aux_dev rk_98090_headset_dev = {
297 	.dlc = COMP_EMPTY(),
298 	.init = rk_98090_headset_init,
299 };
300 
301 static struct snd_soc_card rockchip_max98090_card = {
302 	.name = "ROCKCHIP-I2S",
303 	.owner = THIS_MODULE,
304 	.dai_link = rk_max98090_dailinks,
305 	.num_links = ARRAY_SIZE(rk_max98090_dailinks),
306 	.aux_dev = &rk_98090_headset_dev,
307 	.num_aux_devs = 1,
308 	.dapm_widgets = rk_max98090_dapm_widgets,
309 	.num_dapm_widgets = ARRAY_SIZE(rk_max98090_dapm_widgets),
310 	.dapm_routes = rk_max98090_audio_map,
311 	.num_dapm_routes = ARRAY_SIZE(rk_max98090_audio_map),
312 	.controls = rk_max98090_controls,
313 	.num_controls = ARRAY_SIZE(rk_max98090_controls),
314 };
315 
316 static struct snd_soc_card rockchip_hdmi_card = {
317 	.name = "ROCKCHIP-HDMI",
318 	.owner = THIS_MODULE,
319 	.dai_link = rk_hdmi_dailinks,
320 	.num_links = ARRAY_SIZE(rk_hdmi_dailinks),
321 	.dapm_widgets = rk_hdmi_dapm_widgets,
322 	.num_dapm_widgets = ARRAY_SIZE(rk_hdmi_dapm_widgets),
323 	.dapm_routes = rk_hdmi_audio_map,
324 	.num_dapm_routes = ARRAY_SIZE(rk_hdmi_audio_map),
325 	.controls = rk_hdmi_controls,
326 	.num_controls = ARRAY_SIZE(rk_hdmi_controls),
327 };
328 
329 static struct snd_soc_card rockchip_max98090_hdmi_card = {
330 	.name = "ROCKCHIP-MAX98090-HDMI",
331 	.owner = THIS_MODULE,
332 	.dai_link = rk_max98090_hdmi_dailinks,
333 	.num_links = ARRAY_SIZE(rk_max98090_hdmi_dailinks),
334 	.aux_dev = &rk_98090_headset_dev,
335 	.num_aux_devs = 1,
336 	.dapm_widgets = rk_max98090_hdmi_dapm_widgets,
337 	.num_dapm_widgets = ARRAY_SIZE(rk_max98090_hdmi_dapm_widgets),
338 	.dapm_routes = rk_max98090_hdmi_audio_map,
339 	.num_dapm_routes = ARRAY_SIZE(rk_max98090_hdmi_audio_map),
340 	.controls = rk_max98090_hdmi_controls,
341 	.num_controls = ARRAY_SIZE(rk_max98090_hdmi_controls),
342 };
343 
344 static int rk_98090_headset_init(struct snd_soc_component *component)
345 {
346 	int ret;
347 
348 	/* Enable Headset and 4 Buttons Jack detection */
349 	ret = snd_soc_card_jack_new(component->card, "Headset Jack",
350 				    SND_JACK_HEADSET |
351 				    SND_JACK_BTN_0 | SND_JACK_BTN_1 |
352 				    SND_JACK_BTN_2 | SND_JACK_BTN_3,
353 				    &headset_jack,
354 				    headset_jack_pins,
355 				    ARRAY_SIZE(headset_jack_pins));
356 	if (ret)
357 		return ret;
358 
359 	ret = ts3a227e_enable_jack_detect(component, &headset_jack);
360 
361 	return ret;
362 }
363 
364 static int rk_parse_headset_from_of(struct device *dev, struct device_node *np)
365 {
366 	rk_98090_headset_dev.dlc.of_node = of_parse_phandle(
367 			np, "rockchip,headset-codec", 0);
368 	if (!rk_98090_headset_dev.dlc.of_node) {
369 		dev_err(dev,
370 			"Property 'rockchip,headset-codec' missing/invalid\n");
371 		return -EINVAL;
372 	}
373 	return 0;
374 }
375 
376 static int snd_rk_mc_probe(struct platform_device *pdev)
377 {
378 	int ret = 0;
379 	struct snd_soc_card *card;
380 	struct device *dev = &pdev->dev;
381 	struct device_node *np = pdev->dev.of_node;
382 	struct device_node *np_cpu;
383 	struct device_node *np_audio, *np_hdmi;
384 
385 	/* Parse DTS for I2S controller. */
386 	np_cpu = of_parse_phandle(np, "rockchip,i2s-controller", 0);
387 
388 	if (!np_cpu) {
389 		dev_err(&pdev->dev,
390 			"Property 'rockchip,i2s-controller missing or invalid\n");
391 		return -EINVAL;
392 	}
393 
394 	/*
395 	 * Find the card to use based on the presences of audio codec
396 	 * and hdmi codec in device property. Set their of_node accordingly.
397 	 */
398 	np_audio = of_parse_phandle(np, "rockchip,audio-codec", 0);
399 	np_hdmi = of_parse_phandle(np, "rockchip,hdmi-codec", 0);
400 	if (np_audio && np_hdmi) {
401 		card = &rockchip_max98090_hdmi_card;
402 		card->dai_link[DAILINK_MAX98090].codecs->of_node = np_audio;
403 		card->dai_link[DAILINK_HDMI].codecs->of_node = np_hdmi;
404 		card->dai_link[DAILINK_MAX98090].cpus->of_node = np_cpu;
405 		card->dai_link[DAILINK_MAX98090].platforms->of_node = np_cpu;
406 		card->dai_link[DAILINK_HDMI].cpus->of_node = np_cpu;
407 		card->dai_link[DAILINK_HDMI].platforms->of_node = np_cpu;
408 	} else if (np_audio) {
409 		card = &rockchip_max98090_card;
410 		card->dai_link[0].codecs->of_node = np_audio;
411 		card->dai_link[0].cpus->of_node = np_cpu;
412 		card->dai_link[0].platforms->of_node = np_cpu;
413 	} else if (np_hdmi) {
414 		card = &rockchip_hdmi_card;
415 		card->dai_link[0].codecs->of_node = np_hdmi;
416 		card->dai_link[0].cpus->of_node = np_cpu;
417 		card->dai_link[0].platforms->of_node = np_cpu;
418 	} else {
419 		dev_err(dev, "At least one of codecs should be specified\n");
420 		return -EINVAL;
421 	}
422 
423 	card->dev = dev;
424 
425 	/* Parse headset detection codec. */
426 	if (np_audio) {
427 		ret = rk_parse_headset_from_of(dev, np);
428 		if (ret)
429 			return ret;
430 	}
431 
432 	/* Parse card name. */
433 	ret = snd_soc_of_parse_card_name(card, "rockchip,model");
434 	if (ret) {
435 		dev_err(&pdev->dev,
436 			"Soc parse card name failed %d\n", ret);
437 		return ret;
438 	}
439 
440 	/* register the soc card */
441 	ret = devm_snd_soc_register_card(&pdev->dev, card);
442 	if (ret) {
443 		dev_err(&pdev->dev,
444 			"Soc register card failed %d\n", ret);
445 		return ret;
446 	}
447 
448 	return ret;
449 }
450 
451 static const struct of_device_id rockchip_max98090_of_match[] = {
452 	{ .compatible = "rockchip,rockchip-audio-max98090", },
453 	{},
454 };
455 
456 MODULE_DEVICE_TABLE(of, rockchip_max98090_of_match);
457 
458 static struct platform_driver snd_rk_mc_driver = {
459 	.probe = snd_rk_mc_probe,
460 	.driver = {
461 		.name = DRV_NAME,
462 		.pm = &snd_soc_pm_ops,
463 		.of_match_table = rockchip_max98090_of_match,
464 	},
465 };
466 
467 module_platform_driver(snd_rk_mc_driver);
468 
469 MODULE_AUTHOR("jianqun <jay.xu@rock-chips.com>");
470 MODULE_DESCRIPTION("Rockchip max98090 machine ASoC driver");
471 MODULE_LICENSE("GPL v2");
472 MODULE_ALIAS("platform:" DRV_NAME);
473