1 // SPDX-License-Identifier: GPL-2.0-only
2 //
3 // Copyright(c) 2020 Intel Corporation. All rights reserved.
4 #include <linux/module.h>
5 #include <linux/string.h>
6 #include <sound/pcm.h>
7 #include <sound/pcm_params.h>
8 #include <sound/soc.h>
9 #include <sound/soc-acpi.h>
10 #include <sound/soc-dai.h>
11 #include <sound/soc-dapm.h>
12 #include <uapi/sound/asound.h>
13 #include "sof_maxim_common.h"
14 
15 /* helper function to get the number of specific codec */
16 static unsigned int get_num_codecs(const char *hid)
17 {
18 	struct acpi_device *adev;
19 	unsigned int dev_num = 0;
20 
21 	for_each_acpi_dev_match(adev, hid, NULL, -1)
22 		dev_num++;
23 
24 	return dev_num;
25 }
26 
27 #define MAX_98373_PIN_NAME 16
28 
29 const struct snd_soc_dapm_route max_98373_dapm_routes[] = {
30 	/* speaker */
31 	{ "Left Spk", NULL, "Left BE_OUT" },
32 	{ "Right Spk", NULL, "Right BE_OUT" },
33 };
34 EXPORT_SYMBOL_NS(max_98373_dapm_routes, SND_SOC_INTEL_SOF_MAXIM_COMMON);
35 
36 static struct snd_soc_codec_conf max_98373_codec_conf[] = {
37 	{
38 		.dlc = COMP_CODEC_CONF(MAX_98373_DEV0_NAME),
39 		.name_prefix = "Right",
40 	},
41 	{
42 		.dlc = COMP_CODEC_CONF(MAX_98373_DEV1_NAME),
43 		.name_prefix = "Left",
44 	},
45 };
46 
47 struct snd_soc_dai_link_component max_98373_components[] = {
48 	{  /* For Right */
49 		.name = MAX_98373_DEV0_NAME,
50 		.dai_name = MAX_98373_CODEC_DAI,
51 	},
52 	{  /* For Left */
53 		.name = MAX_98373_DEV1_NAME,
54 		.dai_name = MAX_98373_CODEC_DAI,
55 	},
56 };
57 EXPORT_SYMBOL_NS(max_98373_components, SND_SOC_INTEL_SOF_MAXIM_COMMON);
58 
59 static int max_98373_hw_params(struct snd_pcm_substream *substream,
60 			       struct snd_pcm_hw_params *params)
61 {
62 	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
63 	struct snd_soc_dai *codec_dai;
64 	int j;
65 
66 	for_each_rtd_codec_dais(rtd, j, codec_dai) {
67 		if (!strcmp(codec_dai->component->name, MAX_98373_DEV0_NAME)) {
68 			/* DEV0 tdm slot configuration */
69 			snd_soc_dai_set_tdm_slot(codec_dai, 0x03, 3, 8, 32);
70 		}
71 		if (!strcmp(codec_dai->component->name, MAX_98373_DEV1_NAME)) {
72 			/* DEV1 tdm slot configuration */
73 			snd_soc_dai_set_tdm_slot(codec_dai, 0x0C, 3, 8, 32);
74 		}
75 	}
76 	return 0;
77 }
78 
79 int max_98373_trigger(struct snd_pcm_substream *substream, int cmd)
80 {
81 	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
82 	struct snd_soc_dai *codec_dai;
83 	struct snd_soc_dai *cpu_dai;
84 	int j;
85 	int ret = 0;
86 
87 	/* set spk pin by playback only */
88 	if (substream->stream == SNDRV_PCM_STREAM_CAPTURE)
89 		return 0;
90 
91 	cpu_dai = asoc_rtd_to_cpu(rtd, 0);
92 	for_each_rtd_codec_dais(rtd, j, codec_dai) {
93 		struct snd_soc_dapm_context *dapm =
94 				snd_soc_component_get_dapm(cpu_dai->component);
95 		char pin_name[MAX_98373_PIN_NAME];
96 
97 		snprintf(pin_name, ARRAY_SIZE(pin_name), "%s Spk",
98 			 codec_dai->component->name_prefix);
99 
100 		switch (cmd) {
101 		case SNDRV_PCM_TRIGGER_START:
102 		case SNDRV_PCM_TRIGGER_RESUME:
103 		case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
104 			ret = snd_soc_dapm_enable_pin(dapm, pin_name);
105 			if (!ret)
106 				snd_soc_dapm_sync(dapm);
107 			break;
108 		case SNDRV_PCM_TRIGGER_STOP:
109 		case SNDRV_PCM_TRIGGER_SUSPEND:
110 		case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
111 			ret = snd_soc_dapm_disable_pin(dapm, pin_name);
112 			if (!ret)
113 				snd_soc_dapm_sync(dapm);
114 			break;
115 		default:
116 			break;
117 		}
118 	}
119 
120 	return ret;
121 }
122 EXPORT_SYMBOL_NS(max_98373_trigger, SND_SOC_INTEL_SOF_MAXIM_COMMON);
123 
124 struct snd_soc_ops max_98373_ops = {
125 	.hw_params = max_98373_hw_params,
126 	.trigger = max_98373_trigger,
127 };
128 EXPORT_SYMBOL_NS(max_98373_ops, SND_SOC_INTEL_SOF_MAXIM_COMMON);
129 
130 int max_98373_spk_codec_init(struct snd_soc_pcm_runtime *rtd)
131 {
132 	struct snd_soc_card *card = rtd->card;
133 	int ret;
134 
135 	ret = snd_soc_dapm_add_routes(&card->dapm, max_98373_dapm_routes,
136 				      ARRAY_SIZE(max_98373_dapm_routes));
137 	if (ret)
138 		dev_err(rtd->dev, "Speaker map addition failed: %d\n", ret);
139 	return ret;
140 }
141 EXPORT_SYMBOL_NS(max_98373_spk_codec_init, SND_SOC_INTEL_SOF_MAXIM_COMMON);
142 
143 void max_98373_set_codec_conf(struct snd_soc_card *card)
144 {
145 	card->codec_conf = max_98373_codec_conf;
146 	card->num_configs = ARRAY_SIZE(max_98373_codec_conf);
147 }
148 EXPORT_SYMBOL_NS(max_98373_set_codec_conf, SND_SOC_INTEL_SOF_MAXIM_COMMON);
149 
150 /*
151  * Maxim MAX98390
152  */
153 static const struct snd_soc_dapm_route max_98390_dapm_routes[] = {
154 	/* speaker */
155 	{ "Left Spk", NULL, "Left BE_OUT" },
156 	{ "Right Spk", NULL, "Right BE_OUT" },
157 };
158 
159 static const struct snd_kcontrol_new max_98390_tt_kcontrols[] = {
160 	SOC_DAPM_PIN_SWITCH("TL Spk"),
161 	SOC_DAPM_PIN_SWITCH("TR Spk"),
162 };
163 
164 static const struct snd_soc_dapm_widget max_98390_tt_dapm_widgets[] = {
165 	SND_SOC_DAPM_SPK("TL Spk", NULL),
166 	SND_SOC_DAPM_SPK("TR Spk", NULL),
167 };
168 
169 static const struct snd_soc_dapm_route max_98390_tt_dapm_routes[] = {
170 	/* Tweeter speaker */
171 	{ "TL Spk", NULL, "Tweeter Left BE_OUT" },
172 	{ "TR Spk", NULL, "Tweeter Right BE_OUT" },
173 };
174 
175 static struct snd_soc_codec_conf max_98390_codec_conf[] = {
176 	{
177 		.dlc = COMP_CODEC_CONF(MAX_98390_DEV0_NAME),
178 		.name_prefix = "Right",
179 	},
180 	{
181 		.dlc = COMP_CODEC_CONF(MAX_98390_DEV1_NAME),
182 		.name_prefix = "Left",
183 	},
184 	{
185 		.dlc = COMP_CODEC_CONF(MAX_98390_DEV2_NAME),
186 		.name_prefix = "Tweeter Right",
187 	},
188 	{
189 		.dlc = COMP_CODEC_CONF(MAX_98390_DEV3_NAME),
190 		.name_prefix = "Tweeter Left",
191 	},
192 };
193 
194 static struct snd_soc_dai_link_component max_98390_components[] = {
195 	{
196 		.name = MAX_98390_DEV0_NAME,
197 		.dai_name = MAX_98390_CODEC_DAI,
198 	},
199 	{
200 		.name = MAX_98390_DEV1_NAME,
201 		.dai_name = MAX_98390_CODEC_DAI,
202 	},
203 	{
204 		.name = MAX_98390_DEV2_NAME,
205 		.dai_name = MAX_98390_CODEC_DAI,
206 	},
207 	{
208 		.name = MAX_98390_DEV3_NAME,
209 		.dai_name = MAX_98390_CODEC_DAI,
210 	},
211 };
212 
213 static const struct {
214 	unsigned int tx;
215 	unsigned int rx;
216 } max_98390_tdm_mask[] = {
217 	{.tx = 0x01, .rx = 0x3},
218 	{.tx = 0x02, .rx = 0x3},
219 	{.tx = 0x04, .rx = 0x3},
220 	{.tx = 0x08, .rx = 0x3},
221 };
222 
223 static int max_98390_hw_params(struct snd_pcm_substream *substream,
224 			       struct snd_pcm_hw_params *params)
225 {
226 	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
227 	struct snd_soc_dai *codec_dai;
228 	int i, ret;
229 
230 	for_each_rtd_codec_dais(rtd, i, codec_dai) {
231 		if (i >= ARRAY_SIZE(max_98390_tdm_mask)) {
232 			dev_err(codec_dai->dev, "invalid codec index %d\n", i);
233 			return -ENODEV;
234 		}
235 
236 		ret = snd_soc_dai_set_tdm_slot(codec_dai, max_98390_tdm_mask[i].tx,
237 					       max_98390_tdm_mask[i].rx, 4,
238 					       params_width(params));
239 		if (ret < 0) {
240 			dev_err(codec_dai->dev, "fail to set tdm slot, ret %d\n",
241 				ret);
242 			return ret;
243 		}
244 	}
245 	return 0;
246 }
247 
248 static int max_98390_init(struct snd_soc_pcm_runtime *rtd)
249 {
250 	struct snd_soc_card *card = rtd->card;
251 	unsigned int num_codecs = get_num_codecs(MAX_98390_ACPI_HID);
252 	int ret;
253 
254 	switch (num_codecs) {
255 	case 4:
256 		/* add widgets/controls/dapm for tweeter speakers */
257 		ret = snd_soc_dapm_new_controls(&card->dapm, max_98390_tt_dapm_widgets,
258 						ARRAY_SIZE(max_98390_tt_dapm_widgets));
259 		if (ret) {
260 			dev_err(rtd->dev, "unable to add tweeter dapm widgets, ret %d\n",
261 				ret);
262 			/* Don't need to add routes if widget addition failed */
263 			return ret;
264 		}
265 
266 		ret = snd_soc_add_card_controls(card, max_98390_tt_kcontrols,
267 						ARRAY_SIZE(max_98390_tt_kcontrols));
268 		if (ret) {
269 			dev_err(rtd->dev, "unable to add tweeter controls, ret %d\n",
270 				ret);
271 			return ret;
272 		}
273 
274 		ret = snd_soc_dapm_add_routes(&card->dapm, max_98390_tt_dapm_routes,
275 					      ARRAY_SIZE(max_98390_tt_dapm_routes));
276 		if (ret) {
277 			dev_err(rtd->dev, "unable to add tweeter dapm routes, ret %d\n",
278 				ret);
279 			return ret;
280 		}
281 
282 		fallthrough;
283 	case 2:
284 		/* add regular speakers dapm route */
285 		ret = snd_soc_dapm_add_routes(&card->dapm, max_98390_dapm_routes,
286 					      ARRAY_SIZE(max_98390_dapm_routes));
287 		if (ret) {
288 			dev_err(rtd->dev, "unable to add dapm routes, ret %d\n",
289 				ret);
290 			return ret;
291 		}
292 		break;
293 	default:
294 		dev_err(rtd->dev, "invalid codec number %d\n", num_codecs);
295 		return -EINVAL;
296 	}
297 
298 	return ret;
299 }
300 
301 static const struct snd_soc_ops max_98390_ops = {
302 	.hw_params = max_98390_hw_params,
303 };
304 
305 void max_98390_dai_link(struct device *dev, struct snd_soc_dai_link *link)
306 {
307 	unsigned int num_codecs = get_num_codecs(MAX_98390_ACPI_HID);
308 
309 	link->codecs = max_98390_components;
310 
311 	switch (num_codecs) {
312 	case 2:
313 	case 4:
314 		link->num_codecs = num_codecs;
315 		break;
316 	default:
317 		dev_err(dev, "invalid codec number %d for %s\n", num_codecs,
318 			MAX_98390_ACPI_HID);
319 		break;
320 	}
321 
322 	link->init = max_98390_init;
323 	link->ops = &max_98390_ops;
324 }
325 EXPORT_SYMBOL_NS(max_98390_dai_link, SND_SOC_INTEL_SOF_MAXIM_COMMON);
326 
327 void max_98390_set_codec_conf(struct device *dev, struct snd_soc_card *card)
328 {
329 	unsigned int num_codecs = get_num_codecs(MAX_98390_ACPI_HID);
330 
331 	card->codec_conf = max_98390_codec_conf;
332 
333 	switch (num_codecs) {
334 	case 2:
335 	case 4:
336 		card->num_configs = num_codecs;
337 		break;
338 	default:
339 		dev_err(dev, "invalid codec number %d for %s\n", num_codecs,
340 			MAX_98390_ACPI_HID);
341 		break;
342 	}
343 }
344 EXPORT_SYMBOL_NS(max_98390_set_codec_conf, SND_SOC_INTEL_SOF_MAXIM_COMMON);
345 
346 /*
347  * Maxim MAX98357A/MAX98360A
348  */
349 static const struct snd_kcontrol_new max_98357a_kcontrols[] = {
350 	SOC_DAPM_PIN_SWITCH("Spk"),
351 };
352 
353 static const struct snd_soc_dapm_widget max_98357a_dapm_widgets[] = {
354 	SND_SOC_DAPM_SPK("Spk", NULL),
355 };
356 
357 static const struct snd_soc_dapm_route max_98357a_dapm_routes[] = {
358 	/* speaker */
359 	{"Spk", NULL, "Speaker"},
360 };
361 
362 static struct snd_soc_dai_link_component max_98357a_components[] = {
363 	{
364 		.name = MAX_98357A_DEV0_NAME,
365 		.dai_name = MAX_98357A_CODEC_DAI,
366 	}
367 };
368 
369 static struct snd_soc_dai_link_component max_98360a_components[] = {
370 	{
371 		.name = MAX_98360A_DEV0_NAME,
372 		.dai_name = MAX_98357A_CODEC_DAI,
373 	}
374 };
375 
376 static int max_98357a_init(struct snd_soc_pcm_runtime *rtd)
377 {
378 	struct snd_soc_card *card = rtd->card;
379 	int ret;
380 
381 	ret = snd_soc_dapm_new_controls(&card->dapm, max_98357a_dapm_widgets,
382 					ARRAY_SIZE(max_98357a_dapm_widgets));
383 	if (ret) {
384 		dev_err(rtd->dev, "unable to add dapm controls, ret %d\n", ret);
385 		/* Don't need to add routes if widget addition failed */
386 		return ret;
387 	}
388 
389 	ret = snd_soc_add_card_controls(card, max_98357a_kcontrols,
390 					ARRAY_SIZE(max_98357a_kcontrols));
391 	if (ret) {
392 		dev_err(rtd->dev, "unable to add card controls, ret %d\n", ret);
393 		return ret;
394 	}
395 
396 	ret = snd_soc_dapm_add_routes(&card->dapm, max_98357a_dapm_routes,
397 				      ARRAY_SIZE(max_98357a_dapm_routes));
398 
399 	if (ret)
400 		dev_err(rtd->dev, "unable to add dapm routes, ret %d\n", ret);
401 
402 	return ret;
403 }
404 
405 void max_98357a_dai_link(struct snd_soc_dai_link *link)
406 {
407 	link->codecs = max_98357a_components;
408 	link->num_codecs = ARRAY_SIZE(max_98357a_components);
409 	link->init = max_98357a_init;
410 }
411 EXPORT_SYMBOL_NS(max_98357a_dai_link, SND_SOC_INTEL_SOF_MAXIM_COMMON);
412 
413 void max_98360a_dai_link(struct snd_soc_dai_link *link)
414 {
415 	link->codecs = max_98360a_components;
416 	link->num_codecs = ARRAY_SIZE(max_98360a_components);
417 	link->init = max_98357a_init;
418 }
419 EXPORT_SYMBOL_NS(max_98360a_dai_link, SND_SOC_INTEL_SOF_MAXIM_COMMON);
420 
421 MODULE_DESCRIPTION("ASoC Intel SOF Maxim helpers");
422 MODULE_LICENSE("GPL");
423