summaryrefslogtreecommitdiff
path: root/sound/soc/rockchip/rk3399_gru_sound.c
blob: 9ed735a6cf49ac352d237850423a276ed926ffd4 (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
/*
 * Rockchip machine ASoC driver for boards using MAX98357A/RT5514/DA7219
 *
 * Copyright (c) 2016, ROCKCHIP CORPORATION.  All rights reserved.
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms and conditions of the GNU General Public License,
 * version 2, as published by the Free Software Foundation.
 *
 * This program is distributed in the hope it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
 * more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
#include <linux/gpio.h>
#include <linux/of_gpio.h>
#include <linux/delay.h>
#include <linux/spi/spi.h>
#include <linux/input.h>
#include <sound/core.h>
#include <sound/jack.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/soc.h>
#include "rockchip_i2s.h"
#include "../codecs/da7219.h"
#include "../codecs/da7219-aad.h"
#include "../codecs/rt5514.h"

#define DRV_NAME "rk3399-gru-sound"

#define SOUND_FS	256

unsigned int rt5514_dmic_delay;

static struct snd_soc_jack rockchip_sound_jack;

static const struct snd_soc_dapm_widget rockchip_dapm_widgets[] = {
	SND_SOC_DAPM_HP("Headphones", NULL),
	SND_SOC_DAPM_SPK("Speakers", NULL),
	SND_SOC_DAPM_MIC("Headset Mic", NULL),
	SND_SOC_DAPM_MIC("Int Mic", NULL),
};

static const struct snd_soc_dapm_route rockchip_dapm_routes[] = {
	/* Input Lines */
	{"MIC", NULL, "Headset Mic"},
	{"DMIC1L", NULL, "Int Mic"},
	{"DMIC1R", NULL, "Int Mic"},

	/* Output Lines */
	{"Headphones", NULL, "HPL"},
	{"Headphones", NULL, "HPR"},
	{"Speakers", NULL, "Speaker"},
};

static const struct snd_kcontrol_new rockchip_controls[] = {
	SOC_DAPM_PIN_SWITCH("Headphones"),
	SOC_DAPM_PIN_SWITCH("Speakers"),
	SOC_DAPM_PIN_SWITCH("Headset Mic"),
	SOC_DAPM_PIN_SWITCH("Int Mic"),
};

static int rockchip_sound_max98357a_hw_params(struct snd_pcm_substream *substream,
			     struct snd_pcm_hw_params *params)
{
	struct snd_soc_pcm_runtime *rtd = substream->private_data;
	unsigned int mclk;
	int ret;

	/* max98357a supports these sample rates */
	switch (params_rate(params)) {
	case 8000:
	case 16000:
	case 48000:
	case 96000:
		mclk = params_rate(params) * SOUND_FS;
		break;
	default:
		dev_err(rtd->card->dev, "%s() doesn't support this sample rate: %d\n",
				__func__, params_rate(params));
		return -EINVAL;
	}

	ret = snd_soc_dai_set_sysclk(rtd->cpu_dai, 0, mclk, 0);
	if (ret) {
		dev_err(rtd->card->dev, "%s() error setting sysclk to %u: %d\n",
				__func__, mclk, ret);
		return ret;
	}

	return 0;
}

static int rockchip_sound_rt5514_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;
	unsigned int mclk;
	int ret;

	mclk = params_rate(params) * SOUND_FS;

	ret = snd_soc_dai_set_sysclk(cpu_dai, 0, mclk,
				     SND_SOC_CLOCK_OUT);
	if (ret < 0) {
		dev_err(rtd->card->dev, "Can't set cpu clock out %d\n", ret);
		return ret;
	}

	ret = snd_soc_dai_set_sysclk(codec_dai, RT5514_SCLK_S_MCLK,
				     mclk, SND_SOC_CLOCK_IN);
	if (ret) {
		dev_err(rtd->card->dev, "%s() error setting sysclk to %u: %d\n",
				__func__, params_rate(params) * 512, ret);
		return ret;
	}

	/* Wait for DMIC stable */
	msleep(rt5514_dmic_delay);

	return 0;
}

static int rockchip_sound_da7219_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 mclk, ret;

	/* in bypass mode, the mclk has to be one of the frequencies below */
	switch (params_rate(params)) {
	case 8000:
	case 16000:
	case 24000:
	case 32000:
	case 48000:
	case 64000:
	case 96000:
		mclk = 12288000;
		break;
	case 11025:
	case 22050:
	case 44100:
	case 88200:
		mclk = 11289600;
		break;
	default:
		return -EINVAL;
	}

	ret = snd_soc_dai_set_sysclk(cpu_dai, 0, mclk,
				     SND_SOC_CLOCK_OUT);
	if (ret < 0) {
		dev_err(codec_dai->dev, "Can't set cpu clock out %d\n", ret);
		return ret;
	}

	ret = snd_soc_dai_set_sysclk(codec_dai, 0, mclk,
				     SND_SOC_CLOCK_IN);
	if (ret < 0) {
		dev_err(codec_dai->dev, "Can't set codec clock in %d\n", ret);
		return ret;
	}

	ret = snd_soc_dai_set_pll(codec_dai, 0, DA7219_SYSCLK_MCLK, 0, 0);
	if (ret < 0) {
		dev_err(codec_dai->dev, "Can't set pll sysclk mclk %d\n", ret);
		return ret;
	}

	return 0;
}

static int rockchip_sound_da7219_init(struct snd_soc_pcm_runtime *rtd)
{
	struct snd_soc_codec *codec = rtd->codec_dais[0]->codec;
	struct snd_soc_dai *codec_dai = rtd->codec_dai;
	int ret;

	/* We need default MCLK and PLL settings for the accessory detection */
	ret = snd_soc_dai_set_sysclk(codec_dai, 0, 12288000,
				     SND_SOC_CLOCK_IN);
	if (ret < 0) {
		dev_err(codec_dai->dev, "Init can't set codec clock in %d\n", ret);
		return ret;
	}

	ret = snd_soc_dai_set_pll(codec_dai, 0, DA7219_SYSCLK_MCLK, 0, 0);
	if (ret < 0) {
		dev_err(codec_dai->dev, "Init can't set pll sysclk mclk %d\n", ret);
		return ret;
	}

	/* Enable Headset and 4 Buttons Jack detection */
	ret = snd_soc_card_jack_new(rtd->card, "Headset Jack",
				    SND_JACK_HEADSET | SND_JACK_LINEOUT |
				    SND_JACK_BTN_0 | SND_JACK_BTN_1 |
				    SND_JACK_BTN_2 | SND_JACK_BTN_3,
				    &rockchip_sound_jack, NULL, 0);

	if (ret) {
		dev_err(rtd->card->dev, "New Headset Jack failed! (%d)\n", ret);
		return ret;
	}

	snd_jack_set_key(rockchip_sound_jack.jack, SND_JACK_BTN_0, KEY_MEDIA);
	snd_jack_set_key(
		rockchip_sound_jack.jack, SND_JACK_BTN_1, KEY_VOLUMEUP);
	snd_jack_set_key(
		rockchip_sound_jack.jack, SND_JACK_BTN_2, KEY_VOLUMEDOWN);
	snd_jack_set_key(
		rockchip_sound_jack.jack, SND_JACK_BTN_3, KEY_VOICECOMMAND);

	da7219_aad_jack_det(codec, &rockchip_sound_jack);

	return 0;
}

static struct snd_soc_ops rockchip_sound_max98357a_ops = {
	.hw_params = rockchip_sound_max98357a_hw_params,
};

static struct snd_soc_ops rockchip_sound_rt5514_ops = {
	.hw_params = rockchip_sound_rt5514_hw_params,
};

static struct snd_soc_ops rockchip_sound_da7219_ops = {
	.hw_params = rockchip_sound_da7219_hw_params,
};

enum {
	DAILINK_MAX98357A,
	DAILINK_RT5514,
	DAILINK_DA7219,
	DAILINK_RT5514_DSP,
};

#define DAILINK_ENTITIES	(DAILINK_DA7219 + 1)

static struct snd_soc_dai_link rockchip_dailinks[] = {
	[DAILINK_MAX98357A] = {
		.name = "MAX98357A",
		.stream_name = "MAX98357A PCM",
		.codec_dai_name = "HiFi",
		.ops = &rockchip_sound_max98357a_ops,
		/* set max98357a as slave */
		.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
			SND_SOC_DAIFMT_CBS_CFS,
	},
	[DAILINK_RT5514] = {
		.name = "RT5514",
		.stream_name = "RT5514 PCM",
		.codec_dai_name = "rt5514-aif1",
		.ops = &rockchip_sound_rt5514_ops,
		/* set rt5514 as slave */
		.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
			SND_SOC_DAIFMT_CBS_CFS,
	},
	[DAILINK_DA7219] = {
		.name = "DA7219",
		.stream_name = "DA7219 PCM",
		.codec_dai_name = "da7219-hifi",
		.init = rockchip_sound_da7219_init,
		.ops = &rockchip_sound_da7219_ops,
		/* set da7219 as slave */
		.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
			SND_SOC_DAIFMT_CBS_CFS,
	},
	/* RT5514 DSP for voice wakeup via spi bus */
	[DAILINK_RT5514_DSP] = {
		.name = "RT5514 DSP",
		.stream_name = "Wake on Voice",
		.codec_name = "snd-soc-dummy",
		.codec_dai_name = "snd-soc-dummy-dai",
	},
};

static struct snd_soc_card rockchip_sound_card = {
	.name = "rk3399-gru-sound",
	.owner = THIS_MODULE,
	.dai_link = rockchip_dailinks,
	.num_links =  ARRAY_SIZE(rockchip_dailinks),
	.dapm_widgets = rockchip_dapm_widgets,
	.num_dapm_widgets = ARRAY_SIZE(rockchip_dapm_widgets),
	.dapm_routes = rockchip_dapm_routes,
	.num_dapm_routes = ARRAY_SIZE(rockchip_dapm_routes),
	.controls = rockchip_controls,
	.num_controls = ARRAY_SIZE(rockchip_controls),
};

static int rockchip_sound_match_stub(struct device *dev, void *data)
{
	return 1;
}

static int rockchip_sound_probe(struct platform_device *pdev)
{
	struct snd_soc_card *card = &rockchip_sound_card;
	struct device_node *cpu_node;
	struct device *dev;
	struct device_driver *drv;
	int i, ret;

	cpu_node = of_parse_phandle(pdev->dev.of_node, "rockchip,cpu", 0);
	if (!cpu_node) {
		dev_err(&pdev->dev, "Property 'rockchip,cpu' missing or invalid\n");
		return -EINVAL;
	}

	for (i = 0; i < DAILINK_ENTITIES; i++) {
		rockchip_dailinks[i].platform_of_node = cpu_node;
		rockchip_dailinks[i].cpu_of_node = cpu_node;

		rockchip_dailinks[i].codec_of_node =
			of_parse_phandle(pdev->dev.of_node, "rockchip,codec", i);
		if (!rockchip_dailinks[i].codec_of_node) {
			dev_err(&pdev->dev,
				"Property[%d] 'rockchip,codec' missing or invalid\n", i);
			return -EINVAL;
		}
	}

	/**
	 * To acquire the spi driver of the rt5514 and set the dai-links names
	 * for soc_bind_dai_link
	 */
	drv = driver_find("rt5514", &spi_bus_type);
	if (!drv) {
		dev_err(&pdev->dev, "Can not find the rt5514 driver at the spi bus\n");
		return -EINVAL;
	}

	dev = driver_find_device(drv, NULL, NULL, rockchip_sound_match_stub);
	if (!dev) {
		dev_err(&pdev->dev, "Can not find the rt5514 device\n");
		return -ENODEV;
	}

	/* Set DMIC delay */
	ret = device_property_read_u32(&pdev->dev, "dmic-delay",
					&rt5514_dmic_delay);
	if (ret) {
		rt5514_dmic_delay = 0;
		dev_dbg(&pdev->dev,
			"no optional property 'dmic-delay' found, default: no delay\n");
	}

	rockchip_dailinks[DAILINK_RT5514_DSP].cpu_name = kstrdup_const(dev_name(dev), GFP_KERNEL);
	rockchip_dailinks[DAILINK_RT5514_DSP].cpu_dai_name = kstrdup_const(dev_name(dev), GFP_KERNEL);
	rockchip_dailinks[DAILINK_RT5514_DSP].platform_name = kstrdup_const(dev_name(dev), GFP_KERNEL);

	card->dev = &pdev->dev;
	platform_set_drvdata(pdev, card);

	ret = devm_snd_soc_register_card(&pdev->dev, card);
	if (ret)
		dev_err(&pdev->dev, "%s snd_soc_register_card fail %d\n",
			__func__, ret);

	return ret;
}

static const struct of_device_id rockchip_sound_of_match[] = {
	{ .compatible = "rockchip,rk3399-gru-sound", },
	{},
};

static struct platform_driver rockchip_sound_driver = {
	.probe = rockchip_sound_probe,
	.driver = {
		.name = DRV_NAME,
		.of_match_table = rockchip_sound_of_match,
#ifdef CONFIG_PM
		.pm = &snd_soc_pm_ops,
#endif
	},
};

module_platform_driver(rockchip_sound_driver);

MODULE_AUTHOR("Xing Zheng <zhengxing@rock-chips.com>");
MODULE_DESCRIPTION("Rockchip ASoC Machine Driver");
MODULE_LICENSE("GPL v2");
MODULE_ALIAS("platform:" DRV_NAME);
MODULE_DEVICE_TABLE(of, rockchip_sound_of_match);