summaryrefslogtreecommitdiffstats
path: root/sound/soc/samsung/bells.c
blob: e5f05e62fa3c11f4fd3bf7f2465f353dd2b863c4 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
/*
 * Bells audio support
 *
 * Copyright 2012 Wolfson Microelectronics
 *
 * This program is free software; you can redistribute  it and/or modify it
 * under  the terms of  the GNU General  Public License as published by the
 * Free Software Foundation;  either version 2 of the  License, or (at your
 * option) any later version.
 */

#include <sound/soc.h>
#include <sound/soc-dapm.h>
#include <sound/jack.h>
#include <linux/gpio.h>
#include <linux/module.h>

#include "../codecs/wm5102.h"
#include "../codecs/wm9081.h"

/* BCLK2 is fixed at this currently */
#define BCLK2_RATE (64 * 8000)

/*
 * Expect a 24.576MHz crystal if one is fitted (the driver will function
 * if this is not fitted).
 */
#define MCLK_RATE 24576000

#define SYS_AUDIO_RATE 44100
#define SYS_MCLK_RATE  (SYS_AUDIO_RATE * 512)

#define DAI_AP_DSP    0
#define DAI_DSP_CODEC 1
#define DAI_CODEC_CP  2
#define DAI_CODEC_SUB 3

struct bells_drvdata {
	int sysclk_rate;
	int asyncclk_rate;
};

static struct bells_drvdata wm2200_drvdata = {
	.sysclk_rate = 22579200,
};

static struct bells_drvdata wm5102_drvdata = {
	.sysclk_rate = 45158400,
	.asyncclk_rate = 49152000,
};

static struct bells_drvdata wm5110_drvdata = {
	.sysclk_rate = 135475200,
	.asyncclk_rate = 147456000,
};

static int bells_set_bias_level(struct snd_soc_card *card,
				struct snd_soc_dapm_context *dapm,
				enum snd_soc_bias_level level)
{
	struct snd_soc_dai *codec_dai = card->rtd[DAI_DSP_CODEC].codec_dai;
	struct snd_soc_codec *codec = codec_dai->codec;
	struct bells_drvdata *bells = card->drvdata;
	int ret;

	if (dapm->dev != codec_dai->dev)
		return 0;

	switch (level) {
	case SND_SOC_BIAS_PREPARE:
		if (dapm->bias_level != SND_SOC_BIAS_STANDBY)
			break;

		ret = snd_soc_codec_set_pll(codec, WM5102_FLL1,
					    ARIZONA_FLL_SRC_MCLK1,
					    MCLK_RATE,
					    bells->sysclk_rate);
		if (ret < 0)
			pr_err("Failed to start FLL: %d\n", ret);

		if (bells->asyncclk_rate) {
			ret = snd_soc_codec_set_pll(codec, WM5102_FLL2,
						    ARIZONA_FLL_SRC_AIF2BCLK,
						    BCLK2_RATE,
						    bells->asyncclk_rate);
			if (ret < 0)
				pr_err("Failed to start FLL: %d\n", ret);
		}
		break;

	default:
		break;
	}

	return 0;
}

static int bells_set_bias_level_post(struct snd_soc_card *card,
				     struct snd_soc_dapm_context *dapm,
				     enum snd_soc_bias_level level)
{
	struct snd_soc_dai *codec_dai = card->rtd[DAI_DSP_CODEC].codec_dai;
	struct snd_soc_codec *codec = codec_dai->codec;
	struct bells_drvdata *bells = card->drvdata;
	int ret;

	if (dapm->dev != codec_dai->dev)
		return 0;

	switch (level) {
	case SND_SOC_BIAS_STANDBY:
		ret = snd_soc_codec_set_pll(codec, WM5102_FLL1, 0, 0, 0);
		if (ret < 0) {
			pr_err("Failed to stop FLL: %d\n", ret);
			return ret;
		}

		if (bells->asyncclk_rate) {
			ret = snd_soc_codec_set_pll(codec, WM5102_FLL2,
						    0, 0, 0);
			if (ret < 0) {
				pr_err("Failed to stop FLL: %d\n", ret);
				return ret;
			}
		}
		break;

	default:
		break;
	}

	dapm->bias_level = level;

	return 0;
}

static int bells_late_probe(struct snd_soc_card *card)
{
	struct bells_drvdata *bells = card->drvdata;
	struct snd_soc_codec *wm0010 = card->rtd[DAI_AP_DSP].codec;
	struct snd_soc_codec *codec = card->rtd[DAI_DSP_CODEC].codec;
	struct snd_soc_dai *aif1_dai = card->rtd[DAI_DSP_CODEC].codec_dai;
	struct snd_soc_dai *aif2_dai;
	struct snd_soc_dai *aif3_dai;
	struct snd_soc_dai *wm9081_dai;
	int ret;

	ret = snd_soc_codec_set_sysclk(codec, ARIZONA_CLK_SYSCLK,
				       ARIZONA_CLK_SRC_FLL1,
				       bells->sysclk_rate,
				       SND_SOC_CLOCK_IN);
	if (ret != 0) {
		dev_err(codec->dev, "Failed to set SYSCLK: %d\n", ret);
		return ret;
	}

	ret = snd_soc_codec_set_sysclk(wm0010, 0, 0, SYS_MCLK_RATE, 0);
	if (ret != 0) {
		dev_err(wm0010->dev, "Failed to set WM0010 clock: %d\n", ret);
		return ret;
	}

	ret = snd_soc_dai_set_sysclk(aif1_dai, ARIZONA_CLK_SYSCLK, 0, 0);
	if (ret != 0)
		dev_err(aif1_dai->dev, "Failed to set AIF1 clock: %d\n", ret);

	ret = snd_soc_codec_set_sysclk(codec, ARIZONA_CLK_OPCLK, 0,
				       SYS_MCLK_RATE, SND_SOC_CLOCK_OUT);
	if (ret != 0)
		dev_err(codec->dev, "Failed to set OPCLK: %d\n", ret);

	if (card->num_rtd == DAI_CODEC_CP)
		return 0;

	ret = snd_soc_codec_set_sysclk(codec, ARIZONA_CLK_ASYNCCLK,
				       ARIZONA_CLK_SRC_FLL2,
				       bells->asyncclk_rate,
				       SND_SOC_CLOCK_IN);
	if (ret != 0) {
		dev_err(codec->dev, "Failed to set ASYNCCLK: %d\n", ret);
		return ret;
	}

	aif2_dai = card->rtd[DAI_CODEC_CP].cpu_dai;

	ret = snd_soc_dai_set_sysclk(aif2_dai, ARIZONA_CLK_ASYNCCLK, 0, 0);
	if (ret != 0) {
		dev_err(aif2_dai->dev, "Failed to set AIF2 clock: %d\n", ret);
		return ret;
	}

	if (card->num_rtd == DAI_CODEC_SUB)
		return 0;

	aif3_dai = card->rtd[DAI_CODEC_SUB].cpu_dai;
	wm9081_dai = card->rtd[DAI_CODEC_SUB].codec_dai;

	ret = snd_soc_dai_set_sysclk(aif3_dai, ARIZONA_CLK_SYSCLK, 0, 0);
	if (ret != 0) {
		dev_err(aif1_dai->dev, "Failed to set AIF1 clock: %d\n", ret);
		return ret;
	}

	ret = snd_soc_codec_set_sysclk(wm9081_dai->codec, WM9081_SYSCLK_MCLK,
				       0, SYS_MCLK_RATE, 0);
	if (ret != 0) {
		dev_err(wm9081_dai->dev, "Failed to set MCLK: %d\n", ret);
		return ret;
	}

	return 0;
}

static const struct snd_soc_pcm_stream baseband_params = {
	.formats = SNDRV_PCM_FMTBIT_S32_LE,
	.rate_min = 8000,
	.rate_max = 8000,
	.channels_min = 2,
	.channels_max = 2,
};

static const struct snd_soc_pcm_stream sub_params = {
	.formats = SNDRV_PCM_FMTBIT_S32_LE,
	.rate_min = SYS_AUDIO_RATE,
	.rate_max = SYS_AUDIO_RATE,
	.channels_min = 2,
	.channels_max = 2,
};

static struct snd_soc_dai_link bells_dai_wm2200[] = {
	{
		.name = "CPU-DSP",
		.stream_name = "CPU-DSP",
		.cpu_dai_name = "samsung-i2s.0",
		.codec_dai_name = "wm0010-sdi1",
		.platform_name = "samsung-i2s.0",
		.codec_name = "spi0.0",
		.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
				| SND_SOC_DAIFMT_CBM_CFM,
	},
	{
		.name = "DSP-CODEC",
		.stream_name = "DSP-CODEC",
		.cpu_dai_name = "wm0010-sdi2",
		.codec_dai_name = "wm2200",
		.codec_name = "wm2200.1-003a",
		.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
				| SND_SOC_DAIFMT_CBM_CFM,
		.params = &sub_params,
		.ignore_suspend = 1,
	},
};

static struct snd_soc_dai_link bells_dai_wm5102[] = {
	{
		.name = "CPU-DSP",
		.stream_name = "CPU-DSP",
		.cpu_dai_name = "samsung-i2s.0",
		.codec_dai_name = "wm0010-sdi1",
		.platform_name = "samsung-i2s.0",
		.codec_name = "spi0.0",
		.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
				| SND_SOC_DAIFMT_CBM_CFM,
	},
	{
		.name = "DSP-CODEC",
		.stream_name = "DSP-CODEC",
		.cpu_dai_name = "wm0010-sdi2",
		.codec_dai_name = "wm5102-aif1",
		.codec_name = "wm5102-codec",
		.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
				| SND_SOC_DAIFMT_CBM_CFM,
		.params = &sub_params,
		.ignore_suspend = 1,
	},
	{
		.name = "Baseband",
		.stream_name = "Baseband",
		.cpu_dai_name = "wm5102-aif2",
		.codec_dai_name = "wm1250-ev1",
		.codec_name = "wm1250-ev1.1-0027",
		.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
				| SND_SOC_DAIFMT_CBM_CFM,
		.ignore_suspend = 1,
		.params = &baseband_params,
	},
	{
		.name = "Sub",
		.stream_name = "Sub",
		.cpu_dai_name = "wm5102-aif3",
		.codec_dai_name = "wm9081-hifi",
		.codec_name = "wm9081.1-006c",
		.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
				| SND_SOC_DAIFMT_CBS_CFS,
		.ignore_suspend = 1,
		.params = &sub_params,
	},
};

static struct snd_soc_dai_link bells_dai_wm5110[] = {
	{
		.name = "CPU-DSP",
		.stream_name = "CPU-DSP",
		.cpu_dai_name = "samsung-i2s.0",
		.codec_dai_name = "wm0010-sdi1",
		.platform_name = "samsung-i2s.0",
		.codec_name = "spi0.0",
		.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
				| SND_SOC_DAIFMT_CBM_CFM,
	},
	{
		.name = "DSP-CODEC",
		.stream_name = "DSP-CODEC",
		.cpu_dai_name = "wm0010-sdi2",
		.codec_dai_name = "wm5110-aif1",
		.codec_name = "wm5110-codec",
		.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
				| SND_SOC_DAIFMT_CBM_CFM,
		.params = &sub_params,
		.ignore_suspend = 1,
	},
	{
		.name = "Baseband",
		.stream_name = "Baseband",
		.cpu_dai_name = "wm5110-aif2",
		.codec_dai_name = "wm1250-ev1",
		.codec_name = "wm1250-ev1.1-0027",
		.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
				| SND_SOC_DAIFMT_CBM_CFM,
		.ignore_suspend = 1,
		.params = &baseband_params,
	},
	{
		.name = "Sub",
		.stream_name = "Sub",
		.cpu_dai_name = "wm5110-aif3",
		.codec_dai_name = "wm9081-hifi",
		.codec_name = "wm9081.1-006c",
		.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
				| SND_SOC_DAIFMT_CBS_CFS,
		.ignore_suspend = 1,
		.params = &sub_params,
	},
};

static struct snd_soc_codec_conf bells_codec_conf[] = {
	{
		.dev_name = "wm9081.1-006c",
		.name_prefix = "Sub",
	},
};

static struct snd_soc_dapm_widget bells_widgets[] = {
	SND_SOC_DAPM_MIC("DMIC", NULL),
};

static struct snd_soc_dapm_route bells_routes[] = {
	{ "Sub CLK_SYS", NULL, "OPCLK" },
	{ "CLKIN", NULL, "OPCLK" },

	{ "DMIC", NULL, "MICBIAS2" },
	{ "IN2L", NULL, "DMIC" },
	{ "IN2R", NULL, "DMIC" },
};

static struct snd_soc_card bells_cards[] = {
	{
		.name = "Bells WM2200",
		.owner = THIS_MODULE,
		.dai_link = bells_dai_wm2200,
		.num_links = ARRAY_SIZE(bells_dai_wm2200),
		.codec_conf = bells_codec_conf,
		.num_configs = ARRAY_SIZE(bells_codec_conf),

		.late_probe = bells_late_probe,

		.dapm_widgets = bells_widgets,
		.num_dapm_widgets = ARRAY_SIZE(bells_widgets),
		.dapm_routes = bells_routes,
		.num_dapm_routes = ARRAY_SIZE(bells_routes),

		.set_bias_level = bells_set_bias_level,
		.set_bias_level_post = bells_set_bias_level_post,

		.drvdata = &wm2200_drvdata,
	},
	{
		.name = "Bells WM5102",
		.owner = THIS_MODULE,
		.dai_link = bells_dai_wm5102,
		.num_links = ARRAY_SIZE(bells_dai_wm5102),
		.codec_conf = bells_codec_conf,
		.num_configs = ARRAY_SIZE(bells_codec_conf),

		.late_probe = bells_late_probe,

		.dapm_widgets = bells_widgets,
		.num_dapm_widgets = ARRAY_SIZE(bells_widgets),
		.dapm_routes = bells_routes,
		.num_dapm_routes = ARRAY_SIZE(bells_routes),

		.set_bias_level = bells_set_bias_level,
		.set_bias_level_post = bells_set_bias_level_post,

		.drvdata = &wm5102_drvdata,
	},
	{
		.name = "Bells WM5110",
		.owner = THIS_MODULE,
		.dai_link = bells_dai_wm5110,
		.num_links = ARRAY_SIZE(bells_dai_wm5110),
		.codec_conf = bells_codec_conf,
		.num_configs = ARRAY_SIZE(bells_codec_conf),

		.late_probe = bells_late_probe,

		.dapm_widgets = bells_widgets,
		.num_dapm_widgets = ARRAY_SIZE(bells_widgets),
		.dapm_routes = bells_routes,
		.num_dapm_routes = ARRAY_SIZE(bells_routes),

		.set_bias_level = bells_set_bias_level,
		.set_bias_level_post = bells_set_bias_level_post,

		.drvdata = &wm5110_drvdata,
	},
};


static int bells_probe(struct platform_device *pdev)
{
	int ret;

	bells_cards[pdev->id].dev = &pdev->dev;

	ret = devm_snd_soc_register_card(&pdev->dev, &bells_cards[pdev->id]);
	if (ret)
		dev_err(&pdev->dev,
			"snd_soc_register_card(%s) failed: %d\n",
			bells_cards[pdev->id].name, ret);

	return ret;
}

static struct platform_driver bells_driver = {
	.driver = {
		.name = "bells",
		.pm = &snd_soc_pm_ops,
	},
	.probe = bells_probe,
};

module_platform_driver(bells_driver);

MODULE_DESCRIPTION("Bells audio support");
MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:bells");