summaryrefslogtreecommitdiffstats
path: root/sound/soc/samsung/speyside.c
blob: 360a333cb7c053aa1e9163fd1b9f196d2c2ab111 (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
/*
 * Speyside audio support
 *
 * Copyright 2011 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 "../codecs/wm8915.h"
#include "../codecs/wm9081.h"

#define WM8915_HPSEL_GPIO 214

static int speyside_set_bias_level(struct snd_soc_card *card,
				   enum snd_soc_bias_level level)
{
	struct snd_soc_dai *codec_dai = card->rtd[0].codec_dai;
	int ret;

	switch (level) {
	case SND_SOC_BIAS_STANDBY:
		ret = snd_soc_dai_set_sysclk(codec_dai, WM8915_SYSCLK_MCLK1,
					     32768, SND_SOC_CLOCK_IN);
		if (ret < 0)
			return ret;

		ret = snd_soc_dai_set_pll(codec_dai, WM8915_FLL_MCLK1,
					  0, 0, 0);
		if (ret < 0) {
			pr_err("Failed to stop FLL\n");
			return ret;
		}

	default:
		break;
	}

	return 0;
}

static int speyside_hw_params(struct snd_pcm_substream *substream,
			      struct snd_pcm_hw_params *params)
{
	struct snd_soc_pcm_runtime *rtd = substream->private_data;
	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
	struct snd_soc_dai *codec_dai = rtd->codec_dai;
	int ret;

	ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_I2S
					 | SND_SOC_DAIFMT_NB_NF
					 | SND_SOC_DAIFMT_CBM_CFM);
	if (ret < 0)
		return ret;

	ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_I2S
					 | SND_SOC_DAIFMT_NB_NF
					 | SND_SOC_DAIFMT_CBM_CFM);
	if (ret < 0)
		return ret;

	ret = snd_soc_dai_set_pll(codec_dai, 0, WM8915_FLL_MCLK1,
				  32768, 256 * 48000);
	if (ret < 0)
		return ret;

	ret = snd_soc_dai_set_sysclk(codec_dai, WM8915_SYSCLK_FLL,
				     256 * 48000, SND_SOC_CLOCK_IN);
	if (ret < 0)
		return ret;

	return 0;
}

static struct snd_soc_ops speyside_ops = {
	.hw_params = speyside_hw_params,
};

static struct snd_soc_jack speyside_headset;

/* Headset jack detection DAPM pins */
static struct snd_soc_jack_pin speyside_headset_pins[] = {
	{
		.pin = "Headset Mic",
		.mask = SND_JACK_MICROPHONE,
	},
	{
		.pin = "Headphone",
		.mask = SND_JACK_HEADPHONE,
	},
};

/* Default the headphone selection to active high */
static int speyside_jack_polarity;

static int speyside_get_micbias(struct snd_soc_dapm_widget *source,
				struct snd_soc_dapm_widget *sink)
{
	if (speyside_jack_polarity && (strcmp(source->name, "MICB1") == 0))
		return 1;
	if (!speyside_jack_polarity && (strcmp(source->name, "MICB2") == 0))
		return 1;

	return 0;
}

static void speyside_set_polarity(struct snd_soc_codec *codec,
				  int polarity)
{
	speyside_jack_polarity = !polarity;
	gpio_direction_output(WM8915_HPSEL_GPIO, speyside_jack_polarity);

	/* Re-run DAPM to make sure we're using the correct mic bias */
	snd_soc_dapm_sync(&codec->dapm);
}

static int speyside_wm8915_init(struct snd_soc_pcm_runtime *rtd)
{
	struct snd_soc_dai *dai = rtd->codec_dai;
	struct snd_soc_codec *codec = rtd->codec;
	int ret;

	ret = snd_soc_dai_set_sysclk(dai, WM8915_SYSCLK_MCLK1, 32768, 0);
	if (ret < 0)
		return ret;

	ret = gpio_request(WM8915_HPSEL_GPIO, "HP_SEL");
	if (ret != 0)
		pr_err("Failed to request HP_SEL GPIO: %d\n", ret);
	gpio_direction_output(WM8915_HPSEL_GPIO, speyside_jack_polarity);

	ret = snd_soc_jack_new(codec, "Headset",
			       SND_JACK_HEADSET | SND_JACK_BTN_0,
			       &speyside_headset);
	if (ret)
		return ret;

	ret = snd_soc_jack_add_pins(&speyside_headset,
				    ARRAY_SIZE(speyside_headset_pins),
				    speyside_headset_pins);
	if (ret)
		return ret;

	wm8915_detect(codec, &speyside_headset, speyside_set_polarity);

	return 0;
}

static int speyside_late_probe(struct snd_soc_card *card)
{
	snd_soc_dapm_ignore_suspend(&card->dapm, "Headphone");
	snd_soc_dapm_ignore_suspend(&card->dapm, "Headset Mic");
	snd_soc_dapm_ignore_suspend(&card->dapm, "Main AMIC");
	snd_soc_dapm_ignore_suspend(&card->dapm, "Main DMIC");
	snd_soc_dapm_ignore_suspend(&card->dapm, "Speaker");
	snd_soc_dapm_ignore_suspend(&card->dapm, "WM1250 Output");
	snd_soc_dapm_ignore_suspend(&card->dapm, "WM1250 Input");

	return 0;
}

static struct snd_soc_dai_link speyside_dai[] = {
	{
		.name = "CPU",
		.stream_name = "CPU",
		.cpu_dai_name = "samsung-i2s.0",
		.codec_dai_name = "wm8915-aif1",
		.platform_name = "samsung-audio",
		.codec_name = "wm8915.1-001a",
		.init = speyside_wm8915_init,
		.ops = &speyside_ops,
	},
	{
		.name = "Baseband",
		.stream_name = "Baseband",
		.cpu_dai_name = "wm8915-aif2",
		.codec_dai_name = "wm1250-ev1",
		.codec_name = "wm1250-ev1.1-0027",
		.ops = &speyside_ops,
		.ignore_suspend = 1,
	},
};

static int speyside_wm9081_init(struct snd_soc_dapm_context *dapm)
{
	snd_soc_dapm_nc_pin(dapm, "LINEOUT");

	/* At any time the WM9081 is active it will have this clock */
	return snd_soc_codec_set_sysclk(dapm->codec, WM9081_SYSCLK_MCLK,
					48000 * 256, 0);
}

static struct snd_soc_aux_dev speyside_aux_dev[] = {
	{
		.name = "wm9081",
		.codec_name = "wm9081.1-006c",
		.init = speyside_wm9081_init,
	},
};

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

static const struct snd_kcontrol_new controls[] = {
	SOC_DAPM_PIN_SWITCH("Main Speaker"),
	SOC_DAPM_PIN_SWITCH("Main DMIC"),
	SOC_DAPM_PIN_SWITCH("Main AMIC"),
	SOC_DAPM_PIN_SWITCH("WM1250 Input"),
	SOC_DAPM_PIN_SWITCH("WM1250 Output"),
};

static struct snd_soc_dapm_widget widgets[] = {
	SND_SOC_DAPM_HP("Headphone", NULL),
	SND_SOC_DAPM_MIC("Headset Mic", NULL),

	SND_SOC_DAPM_SPK("Main Speaker", NULL),

	SND_SOC_DAPM_MIC("Main AMIC", NULL),
	SND_SOC_DAPM_MIC("Main DMIC", NULL),
};

static struct snd_soc_dapm_route audio_paths[] = {
	{ "IN1RN", NULL, "MICB1" },
	{ "IN1RP", NULL, "MICB1" },
	{ "IN1RN", NULL, "MICB2" },
	{ "IN1RP", NULL, "MICB2" },
	{ "MICB1", NULL, "Headset Mic", speyside_get_micbias },
	{ "MICB2", NULL, "Headset Mic", speyside_get_micbias },

	{ "IN1LP", NULL, "MICB2" },
	{ "IN1RN", NULL, "MICB1" },
	{ "MICB2", NULL, "Main AMIC" },

	{ "DMIC1DAT", NULL, "MICB1" },
	{ "DMIC2DAT", NULL, "MICB1" },
	{ "MICB1", NULL, "Main DMIC" },

	{ "Headphone", NULL, "HPOUT1L" },
	{ "Headphone", NULL, "HPOUT1R" },

	{ "Sub IN1", NULL, "HPOUT2L" },
	{ "Sub IN2", NULL, "HPOUT2R" },

	{ "Main Speaker", NULL, "Sub SPKN" },
	{ "Main Speaker", NULL, "Sub SPKP" },
	{ "Main Speaker", NULL, "SPKDAT" },
};

static struct snd_soc_card speyside = {
	.name = "Speyside",
	.dai_link = speyside_dai,
	.num_links = ARRAY_SIZE(speyside_dai),
	.aux_dev = speyside_aux_dev,
	.num_aux_devs = ARRAY_SIZE(speyside_aux_dev),
	.codec_conf = speyside_codec_conf,
	.num_configs = ARRAY_SIZE(speyside_codec_conf),

	.set_bias_level = speyside_set_bias_level,

	.controls = controls,
	.num_controls = ARRAY_SIZE(controls),
	.dapm_widgets = widgets,
	.num_dapm_widgets = ARRAY_SIZE(widgets),
	.dapm_routes = audio_paths,
	.num_dapm_routes = ARRAY_SIZE(audio_paths),

	.late_probe = speyside_late_probe,
};

static __devinit int speyside_probe(struct platform_device *pdev)
{
	struct snd_soc_card *card = &speyside;
	int ret;

	card->dev = &pdev->dev;

	ret = snd_soc_register_card(card);
	if (ret) {
		dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
			ret);
		return ret;
	}

	return 0;
}

static int __devexit speyside_remove(struct platform_device *pdev)
{
	struct snd_soc_card *card = platform_get_drvdata(pdev);

	snd_soc_unregister_card(card);

	return 0;
}

static struct platform_driver speyside_driver = {
	.driver = {
		.name = "speyside",
		.owner = THIS_MODULE,
		.pm = &snd_soc_pm_ops,
	},
	.probe = speyside_probe,
	.remove = __devexit_p(speyside_remove),
};

static int __init speyside_audio_init(void)
{
	return platform_driver_register(&speyside_driver);
}
module_init(speyside_audio_init);

static void __exit speyside_audio_exit(void)
{
	platform_driver_unregister(&speyside_driver);
}
module_exit(speyside_audio_exit);

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