xref: /openbmc/linux/sound/soc/samsung/speyside.c (revision e7a73b05)
1 // SPDX-License-Identifier: GPL-2.0+
2 //
3 // Speyside audio support
4 //
5 // Copyright 2011 Wolfson Microelectronics
6 
7 #include <sound/soc.h>
8 #include <sound/soc-dapm.h>
9 #include <sound/jack.h>
10 #include <linux/gpio.h>
11 #include <linux/module.h>
12 
13 #include "../codecs/wm8996.h"
14 #include "../codecs/wm9081.h"
15 
16 #define WM8996_HPSEL_GPIO 214
17 #define MCLK_AUDIO_RATE (512 * 48000)
18 
speyside_set_bias_level(struct snd_soc_card * card,struct snd_soc_dapm_context * dapm,enum snd_soc_bias_level level)19 static int speyside_set_bias_level(struct snd_soc_card *card,
20 				   struct snd_soc_dapm_context *dapm,
21 				   enum snd_soc_bias_level level)
22 {
23 	struct snd_soc_pcm_runtime *rtd;
24 	struct snd_soc_dai *codec_dai;
25 	int ret;
26 
27 	rtd = snd_soc_get_pcm_runtime(card, &card->dai_link[1]);
28 	codec_dai = asoc_rtd_to_codec(rtd, 0);
29 
30 	if (dapm->dev != codec_dai->dev)
31 		return 0;
32 
33 	switch (level) {
34 	case SND_SOC_BIAS_STANDBY:
35 		ret = snd_soc_dai_set_sysclk(codec_dai, WM8996_SYSCLK_MCLK2,
36 					     32768, SND_SOC_CLOCK_IN);
37 		if (ret < 0)
38 			return ret;
39 
40 		ret = snd_soc_dai_set_pll(codec_dai, WM8996_FLL_MCLK2,
41 					  0, 0, 0);
42 		if (ret < 0) {
43 			pr_err("Failed to stop FLL\n");
44 			return ret;
45 		}
46 		break;
47 
48 	default:
49 		break;
50 	}
51 
52 	return 0;
53 }
54 
speyside_set_bias_level_post(struct snd_soc_card * card,struct snd_soc_dapm_context * dapm,enum snd_soc_bias_level level)55 static int speyside_set_bias_level_post(struct snd_soc_card *card,
56 					struct snd_soc_dapm_context *dapm,
57 					enum snd_soc_bias_level level)
58 {
59 	struct snd_soc_pcm_runtime *rtd;
60 	struct snd_soc_dai *codec_dai;
61 	int ret;
62 
63 	rtd = snd_soc_get_pcm_runtime(card, &card->dai_link[1]);
64 	codec_dai = asoc_rtd_to_codec(rtd, 0);
65 
66 	if (dapm->dev != codec_dai->dev)
67 		return 0;
68 
69 	switch (level) {
70 	case SND_SOC_BIAS_PREPARE:
71 		if (card->dapm.bias_level == SND_SOC_BIAS_STANDBY) {
72 			ret = snd_soc_dai_set_pll(codec_dai, 0,
73 						  WM8996_FLL_MCLK2,
74 						  32768, MCLK_AUDIO_RATE);
75 			if (ret < 0) {
76 				pr_err("Failed to start FLL\n");
77 				return ret;
78 			}
79 
80 			ret = snd_soc_dai_set_sysclk(codec_dai,
81 						     WM8996_SYSCLK_FLL,
82 						     MCLK_AUDIO_RATE,
83 						     SND_SOC_CLOCK_IN);
84 			if (ret < 0)
85 				return ret;
86 		}
87 		break;
88 
89 	default:
90 		break;
91 	}
92 
93 	card->dapm.bias_level = level;
94 
95 	return 0;
96 }
97 
98 static struct snd_soc_jack speyside_headset;
99 
100 /* Headset jack detection DAPM pins */
101 static struct snd_soc_jack_pin speyside_headset_pins[] = {
102 	{
103 		.pin = "Headset Mic",
104 		.mask = SND_JACK_MICROPHONE,
105 	},
106 };
107 
108 /* Default the headphone selection to active high */
109 static int speyside_jack_polarity;
110 
speyside_get_micbias(struct snd_soc_dapm_widget * source,struct snd_soc_dapm_widget * sink)111 static int speyside_get_micbias(struct snd_soc_dapm_widget *source,
112 				struct snd_soc_dapm_widget *sink)
113 {
114 	if (speyside_jack_polarity && (strcmp(source->name, "MICB1") == 0))
115 		return 1;
116 	if (!speyside_jack_polarity && (strcmp(source->name, "MICB2") == 0))
117 		return 1;
118 
119 	return 0;
120 }
121 
speyside_set_polarity(struct snd_soc_component * component,int polarity)122 static void speyside_set_polarity(struct snd_soc_component *component,
123 				  int polarity)
124 {
125 	speyside_jack_polarity = !polarity;
126 	gpio_direction_output(WM8996_HPSEL_GPIO, speyside_jack_polarity);
127 
128 	/* Re-run DAPM to make sure we're using the correct mic bias */
129 	snd_soc_dapm_sync(snd_soc_component_get_dapm(component));
130 }
131 
speyside_wm0010_init(struct snd_soc_pcm_runtime * rtd)132 static int speyside_wm0010_init(struct snd_soc_pcm_runtime *rtd)
133 {
134 	struct snd_soc_dai *dai = asoc_rtd_to_codec(rtd, 0);
135 	int ret;
136 
137 	ret = snd_soc_dai_set_sysclk(dai, 0, MCLK_AUDIO_RATE, 0);
138 	if (ret < 0)
139 		return ret;
140 
141 	return 0;
142 }
143 
speyside_wm8996_init(struct snd_soc_pcm_runtime * rtd)144 static int speyside_wm8996_init(struct snd_soc_pcm_runtime *rtd)
145 {
146 	struct snd_soc_dai *dai = asoc_rtd_to_codec(rtd, 0);
147 	struct snd_soc_component *component = dai->component;
148 	int ret;
149 
150 	ret = snd_soc_dai_set_sysclk(dai, WM8996_SYSCLK_MCLK2, 32768, 0);
151 	if (ret < 0)
152 		return ret;
153 
154 	ret = gpio_request(WM8996_HPSEL_GPIO, "HP_SEL");
155 	if (ret != 0)
156 		pr_err("Failed to request HP_SEL GPIO: %d\n", ret);
157 	gpio_direction_output(WM8996_HPSEL_GPIO, speyside_jack_polarity);
158 
159 	ret = snd_soc_card_jack_new_pins(rtd->card, "Headset",
160 					 SND_JACK_LINEOUT | SND_JACK_HEADSET |
161 					 SND_JACK_BTN_0,
162 					 &speyside_headset,
163 					 speyside_headset_pins,
164 					 ARRAY_SIZE(speyside_headset_pins));
165 	if (ret)
166 		return ret;
167 
168 	wm8996_detect(component, &speyside_headset, speyside_set_polarity);
169 
170 	return 0;
171 }
172 
speyside_late_probe(struct snd_soc_card * card)173 static int speyside_late_probe(struct snd_soc_card *card)
174 {
175 	snd_soc_dapm_ignore_suspend(&card->dapm, "Headphone");
176 	snd_soc_dapm_ignore_suspend(&card->dapm, "Headset Mic");
177 	snd_soc_dapm_ignore_suspend(&card->dapm, "Main AMIC");
178 	snd_soc_dapm_ignore_suspend(&card->dapm, "Main DMIC");
179 	snd_soc_dapm_ignore_suspend(&card->dapm, "Main Speaker");
180 	snd_soc_dapm_ignore_suspend(&card->dapm, "WM1250 Output");
181 	snd_soc_dapm_ignore_suspend(&card->dapm, "WM1250 Input");
182 
183 	return 0;
184 }
185 
186 static const struct snd_soc_pcm_stream dsp_codec_params = {
187 	.formats = SNDRV_PCM_FMTBIT_S32_LE,
188 	.rate_min = 48000,
189 	.rate_max = 48000,
190 	.channels_min = 2,
191 	.channels_max = 2,
192 };
193 
194 SND_SOC_DAILINK_DEFS(cpu_dsp,
195 	DAILINK_COMP_ARRAY(COMP_CPU("samsung-i2s.0")),
196 	DAILINK_COMP_ARRAY(COMP_CODEC("spi0.0", "wm0010-sdi1")),
197 	DAILINK_COMP_ARRAY(COMP_PLATFORM("samsung-i2s.0")));
198 
199 SND_SOC_DAILINK_DEFS(dsp_codec,
200 	DAILINK_COMP_ARRAY(COMP_CPU("wm0010-sdi2")),
201 	DAILINK_COMP_ARRAY(COMP_CODEC("wm8996.1-001a", "wm8996-aif1")));
202 
203 SND_SOC_DAILINK_DEFS(baseband,
204 	DAILINK_COMP_ARRAY(COMP_CPU("wm8996-aif2")),
205 	DAILINK_COMP_ARRAY(COMP_CODEC("wm1250-ev1.1-0027", "wm1250-ev1")));
206 
207 static struct snd_soc_dai_link speyside_dai[] = {
208 	{
209 		.name = "CPU-DSP",
210 		.stream_name = "CPU-DSP",
211 		.init = speyside_wm0010_init,
212 		.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
213 				| SND_SOC_DAIFMT_CBM_CFM,
214 		SND_SOC_DAILINK_REG(cpu_dsp),
215 	},
216 	{
217 		.name = "DSP-CODEC",
218 		.stream_name = "DSP-CODEC",
219 		.init = speyside_wm8996_init,
220 		.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
221 				| SND_SOC_DAIFMT_CBM_CFM,
222 		.c2c_params = &dsp_codec_params,
223 		.num_c2c_params = 1,
224 		.ignore_suspend = 1,
225 		SND_SOC_DAILINK_REG(dsp_codec),
226 	},
227 	{
228 		.name = "Baseband",
229 		.stream_name = "Baseband",
230 		.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
231 				| SND_SOC_DAIFMT_CBM_CFM,
232 		.ignore_suspend = 1,
233 		SND_SOC_DAILINK_REG(baseband),
234 	},
235 };
236 
speyside_wm9081_init(struct snd_soc_component * component)237 static int speyside_wm9081_init(struct snd_soc_component *component)
238 {
239 	/* At any time the WM9081 is active it will have this clock */
240 	return snd_soc_component_set_sysclk(component, WM9081_SYSCLK_MCLK, 0,
241 					MCLK_AUDIO_RATE, 0);
242 }
243 
244 static struct snd_soc_aux_dev speyside_aux_dev[] = {
245 	{
246 		.dlc = COMP_AUX("wm9081.1-006c"),
247 		.init = speyside_wm9081_init,
248 	},
249 };
250 
251 static struct snd_soc_codec_conf speyside_codec_conf[] = {
252 	{
253 		.dlc = COMP_CODEC_CONF("wm9081.1-006c"),
254 		.name_prefix = "Sub",
255 	},
256 };
257 
258 static const struct snd_kcontrol_new controls[] = {
259 	SOC_DAPM_PIN_SWITCH("Main Speaker"),
260 	SOC_DAPM_PIN_SWITCH("Main DMIC"),
261 	SOC_DAPM_PIN_SWITCH("Main AMIC"),
262 	SOC_DAPM_PIN_SWITCH("WM1250 Input"),
263 	SOC_DAPM_PIN_SWITCH("WM1250 Output"),
264 	SOC_DAPM_PIN_SWITCH("Headphone"),
265 };
266 
267 static const struct snd_soc_dapm_widget widgets[] = {
268 	SND_SOC_DAPM_HP("Headphone", NULL),
269 	SND_SOC_DAPM_MIC("Headset Mic", NULL),
270 
271 	SND_SOC_DAPM_SPK("Main Speaker", NULL),
272 
273 	SND_SOC_DAPM_MIC("Main AMIC", NULL),
274 	SND_SOC_DAPM_MIC("Main DMIC", NULL),
275 };
276 
277 static const struct snd_soc_dapm_route audio_paths[] = {
278 	{ "IN1RN", NULL, "MICB1" },
279 	{ "IN1RP", NULL, "MICB1" },
280 	{ "IN1RN", NULL, "MICB2" },
281 	{ "IN1RP", NULL, "MICB2" },
282 	{ "MICB1", NULL, "Headset Mic", speyside_get_micbias },
283 	{ "MICB2", NULL, "Headset Mic", speyside_get_micbias },
284 
285 	{ "IN1LP", NULL, "MICB2" },
286 	{ "IN1RN", NULL, "MICB1" },
287 	{ "MICB2", NULL, "Main AMIC" },
288 
289 	{ "DMIC1DAT", NULL, "MICB1" },
290 	{ "DMIC2DAT", NULL, "MICB1" },
291 	{ "MICB1", NULL, "Main DMIC" },
292 
293 	{ "Headphone", NULL, "HPOUT1L" },
294 	{ "Headphone", NULL, "HPOUT1R" },
295 
296 	{ "Sub IN1", NULL, "HPOUT2L" },
297 	{ "Sub IN2", NULL, "HPOUT2R" },
298 
299 	{ "Main Speaker", NULL, "Sub SPKN" },
300 	{ "Main Speaker", NULL, "Sub SPKP" },
301 	{ "Main Speaker", NULL, "SPKDAT" },
302 };
303 
304 static struct snd_soc_card speyside = {
305 	.name = "Speyside",
306 	.owner = THIS_MODULE,
307 	.dai_link = speyside_dai,
308 	.num_links = ARRAY_SIZE(speyside_dai),
309 	.aux_dev = speyside_aux_dev,
310 	.num_aux_devs = ARRAY_SIZE(speyside_aux_dev),
311 	.codec_conf = speyside_codec_conf,
312 	.num_configs = ARRAY_SIZE(speyside_codec_conf),
313 
314 	.set_bias_level = speyside_set_bias_level,
315 	.set_bias_level_post = speyside_set_bias_level_post,
316 
317 	.controls = controls,
318 	.num_controls = ARRAY_SIZE(controls),
319 	.dapm_widgets = widgets,
320 	.num_dapm_widgets = ARRAY_SIZE(widgets),
321 	.dapm_routes = audio_paths,
322 	.num_dapm_routes = ARRAY_SIZE(audio_paths),
323 	.fully_routed = true,
324 
325 	.late_probe = speyside_late_probe,
326 };
327 
speyside_probe(struct platform_device * pdev)328 static int speyside_probe(struct platform_device *pdev)
329 {
330 	struct snd_soc_card *card = &speyside;
331 	int ret;
332 
333 	card->dev = &pdev->dev;
334 
335 	ret = devm_snd_soc_register_card(&pdev->dev, card);
336 	if (ret)
337 		dev_err_probe(&pdev->dev, ret, "snd_soc_register_card() failed\n");
338 
339 	return ret;
340 }
341 
342 static struct platform_driver speyside_driver = {
343 	.driver = {
344 		.name = "speyside",
345 		.pm = &snd_soc_pm_ops,
346 	},
347 	.probe = speyside_probe,
348 };
349 
350 module_platform_driver(speyside_driver);
351 
352 MODULE_DESCRIPTION("Speyside audio support");
353 MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
354 MODULE_LICENSE("GPL");
355 MODULE_ALIAS("platform:speyside");
356