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
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 = snd_soc_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
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 = snd_soc_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
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 && (snd_soc_dapm_widget_name_cmp(source, "MICB1") == 0))
115 return 1;
116 if (!speyside_jack_polarity && (snd_soc_dapm_widget_name_cmp(source, "MICB2") == 0))
117 return 1;
118
119 return 0;
120 }
121
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
132 static int speyside_wm0010_init(struct snd_soc_pcm_runtime *rtd)
133 {
134 struct snd_soc_dai *dai = snd_soc_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
144 static int speyside_wm8996_init(struct snd_soc_pcm_runtime *rtd)
145 {
146 struct snd_soc_dai *dai = snd_soc_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
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
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
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
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