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