summaryrefslogtreecommitdiffstats
path: root/sound/soc/intel/boards/bytcr_rt5651.c
blob: 3186f015939fb5fce3e8393fd40463362464dbf8 (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
/*
 *  bytcr_rt5651.c - ASoc Machine driver for Intel Byt CR platform
 *  (derived from bytcr_rt5640.c)
 *
 *  Copyright (C) 2015 Intel Corp
 *  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 *
 *  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; version 2 of the License.
 *
 *  This program is distributed in the hope that 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.
 *
 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 */

#include <linux/init.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/acpi.h>
#include <linux/device.h>
#include <linux/dmi.h>
#include <linux/slab.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/soc.h>
#include <sound/jack.h>
#include "../../codecs/rt5651.h"
#include "../atom/sst-atom-controls.h"

static const struct snd_soc_dapm_widget byt_rt5651_widgets[] = {
	SND_SOC_DAPM_HP("Headphone", NULL),
	SND_SOC_DAPM_MIC("Headset Mic", NULL),
	SND_SOC_DAPM_MIC("Internal Mic", NULL),
	SND_SOC_DAPM_SPK("Speaker", NULL),
};

static const struct snd_soc_dapm_route byt_rt5651_audio_map[] = {
	{"AIF1 Playback", NULL, "ssp2 Tx"},
	{"ssp2 Tx", NULL, "codec_out0"},
	{"ssp2 Tx", NULL, "codec_out1"},
	{"codec_in0", NULL, "ssp2 Rx"},
	{"codec_in1", NULL, "ssp2 Rx"},
	{"ssp2 Rx", NULL, "AIF1 Capture"},

	{"Headset Mic", NULL, "micbias1"}, /* lowercase for rt5651 */
	{"IN2P", NULL, "Headset Mic"},
	{"Headphone", NULL, "HPOL"},
	{"Headphone", NULL, "HPOR"},
	{"Speaker", NULL, "LOUTL"},
	{"Speaker", NULL, "LOUTR"},
};

static const struct snd_soc_dapm_route byt_rt5651_intmic_dmic1_map[] = {
	{"DMIC1", NULL, "Internal Mic"},
};

static const struct snd_soc_dapm_route byt_rt5651_intmic_dmic2_map[] = {
	{"DMIC2", NULL, "Internal Mic"},
};

static const struct snd_soc_dapm_route byt_rt5651_intmic_in1_map[] = {
	{"Internal Mic", NULL, "micbias1"},
	{"IN1P", NULL, "Internal Mic"},
};

enum {
	BYT_RT5651_DMIC1_MAP,
	BYT_RT5651_DMIC2_MAP,
	BYT_RT5651_IN1_MAP,
};

#define BYT_RT5651_MAP(quirk)	((quirk) & 0xff)
#define BYT_RT5651_DMIC_EN	BIT(16)

static unsigned long byt_rt5651_quirk = BYT_RT5651_DMIC1_MAP |
					BYT_RT5651_DMIC_EN;

static const struct snd_kcontrol_new byt_rt5651_controls[] = {
	SOC_DAPM_PIN_SWITCH("Headphone"),
	SOC_DAPM_PIN_SWITCH("Headset Mic"),
	SOC_DAPM_PIN_SWITCH("Internal Mic"),
	SOC_DAPM_PIN_SWITCH("Speaker"),
};

static int byt_rt5651_aif1_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 *codec_dai = rtd->codec_dai;
	int ret;

	snd_soc_dai_set_bclk_ratio(codec_dai, 50);

	ret = snd_soc_dai_set_sysclk(codec_dai, RT5651_SCLK_S_PLL1,
				     params_rate(params) * 512,
				     SND_SOC_CLOCK_IN);
	if (ret < 0) {
		dev_err(rtd->dev, "can't set codec clock %d\n", ret);
		return ret;
	}

	ret = snd_soc_dai_set_pll(codec_dai, 0, RT5651_PLL1_S_BCLK1,
				  params_rate(params) * 50,
				  params_rate(params) * 512);
	if (ret < 0) {
		dev_err(rtd->dev, "can't set codec pll: %d\n", ret);
		return ret;
	}

	return 0;
}

static const struct dmi_system_id byt_rt5651_quirk_table[] = {
	{}
};

static int byt_rt5651_init(struct snd_soc_pcm_runtime *runtime)
{
	int ret;
	struct snd_soc_card *card = runtime->card;
	const struct snd_soc_dapm_route *custom_map;
	int num_routes;

	card->dapm.idle_bias_off = true;

	dmi_check_system(byt_rt5651_quirk_table);
	switch (BYT_RT5651_MAP(byt_rt5651_quirk)) {
	case BYT_RT5651_IN1_MAP:
		custom_map = byt_rt5651_intmic_in1_map;
		num_routes = ARRAY_SIZE(byt_rt5651_intmic_in1_map);
		break;
	case BYT_RT5651_DMIC2_MAP:
		custom_map = byt_rt5651_intmic_dmic2_map;
		num_routes = ARRAY_SIZE(byt_rt5651_intmic_dmic2_map);
		break;
	default:
		custom_map = byt_rt5651_intmic_dmic1_map;
		num_routes = ARRAY_SIZE(byt_rt5651_intmic_dmic1_map);
	}

	ret = snd_soc_add_card_controls(card, byt_rt5651_controls,
					ARRAY_SIZE(byt_rt5651_controls));
	if (ret) {
		dev_err(card->dev, "unable to add card controls\n");
		return ret;
	}
	snd_soc_dapm_ignore_suspend(&card->dapm, "Headphone");
	snd_soc_dapm_ignore_suspend(&card->dapm, "Speaker");

	return ret;
}

static const struct snd_soc_pcm_stream byt_rt5651_dai_params = {
	.formats = SNDRV_PCM_FMTBIT_S24_LE,
	.rate_min = 48000,
	.rate_max = 48000,
	.channels_min = 2,
	.channels_max = 2,
};

static int byt_rt5651_codec_fixup(struct snd_soc_pcm_runtime *rtd,
			    struct snd_pcm_hw_params *params)
{
	struct snd_interval *rate = hw_param_interval(params,
			SNDRV_PCM_HW_PARAM_RATE);
	struct snd_interval *channels = hw_param_interval(params,
						SNDRV_PCM_HW_PARAM_CHANNELS);
	int ret;

	/* The DSP will covert the FE rate to 48k, stereo, 24bits */
	rate->min = rate->max = 48000;
	channels->min = channels->max = 2;

	/* set SSP2 to 24-bit */
	params_set_format(params, SNDRV_PCM_FORMAT_S24_LE);

	/*
	 * Default mode for SSP configuration is TDM 4 slot, override config
	 * with explicit setting to I2S 2ch 24-bit. The word length is set with
	 * dai_set_tdm_slot() since there is no other API exposed
	 */
	ret = snd_soc_dai_set_fmt(rtd->cpu_dai,
				  SND_SOC_DAIFMT_I2S     |
				  SND_SOC_DAIFMT_NB_NF   |
				  SND_SOC_DAIFMT_CBS_CFS
				  );

	if (ret < 0) {
		dev_err(rtd->dev, "can't set format to I2S, err %d\n", ret);
		return ret;
	}

	ret = snd_soc_dai_set_tdm_slot(rtd->cpu_dai, 0x3, 0x3, 2, 24);
	if (ret < 0) {
		dev_err(rtd->dev, "can't set I2S config, err %d\n", ret);
		return ret;
	}

	return 0;
}

static unsigned int rates_48000[] = {
	48000,
};

static struct snd_pcm_hw_constraint_list constraints_48000 = {
	.count = ARRAY_SIZE(rates_48000),
	.list  = rates_48000,
};

static int byt_rt5651_aif1_startup(struct snd_pcm_substream *substream)
{
	return snd_pcm_hw_constraint_list(substream->runtime, 0,
			SNDRV_PCM_HW_PARAM_RATE,
			&constraints_48000);
}

static const struct snd_soc_ops byt_rt5651_aif1_ops = {
	.startup = byt_rt5651_aif1_startup,
};

static const struct snd_soc_ops byt_rt5651_be_ssp2_ops = {
	.hw_params = byt_rt5651_aif1_hw_params,
};

static struct snd_soc_dai_link byt_rt5651_dais[] = {
	[MERR_DPCM_AUDIO] = {
		.name = "Audio Port",
		.stream_name = "Audio",
		.cpu_dai_name = "media-cpu-dai",
		.codec_dai_name = "snd-soc-dummy-dai",
		.codec_name = "snd-soc-dummy",
		.platform_name = "sst-mfld-platform",
		.ignore_suspend = 1,
		.nonatomic = true,
		.dynamic = 1,
		.dpcm_playback = 1,
		.dpcm_capture = 1,
		.ops = &byt_rt5651_aif1_ops,
	},
	[MERR_DPCM_DEEP_BUFFER] = {
		.name = "Deep-Buffer Audio Port",
		.stream_name = "Deep-Buffer Audio",
		.cpu_dai_name = "deepbuffer-cpu-dai",
		.codec_dai_name = "snd-soc-dummy-dai",
		.codec_name = "snd-soc-dummy",
		.platform_name = "sst-mfld-platform",
		.ignore_suspend = 1,
		.nonatomic = true,
		.dynamic = 1,
		.dpcm_playback = 1,
		.ops = &byt_rt5651_aif1_ops,
	},
	[MERR_DPCM_COMPR] = {
		.name = "Compressed Port",
		.stream_name = "Compress",
		.cpu_dai_name = "compress-cpu-dai",
		.codec_dai_name = "snd-soc-dummy-dai",
		.codec_name = "snd-soc-dummy",
		.platform_name = "sst-mfld-platform",
	},
	/* CODEC<->CODEC link */
	/* back ends */
	{
		.name = "SSP2-Codec",
		.id = 1,
		.cpu_dai_name = "ssp2-port",
		.platform_name = "sst-mfld-platform",
		.no_pcm = 1,
		.codec_dai_name = "rt5651-aif1",
		.codec_name = "i2c-10EC5651:00",
		.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
						| SND_SOC_DAIFMT_CBS_CFS,
		.be_hw_params_fixup = byt_rt5651_codec_fixup,
		.ignore_suspend = 1,
		.nonatomic = true,
		.dpcm_playback = 1,
		.dpcm_capture = 1,
		.init = byt_rt5651_init,
		.ops = &byt_rt5651_be_ssp2_ops,
	},
};

/* SoC card */
static struct snd_soc_card byt_rt5651_card = {
	.name = "bytcr-rt5651",
	.owner = THIS_MODULE,
	.dai_link = byt_rt5651_dais,
	.num_links = ARRAY_SIZE(byt_rt5651_dais),
	.dapm_widgets = byt_rt5651_widgets,
	.num_dapm_widgets = ARRAY_SIZE(byt_rt5651_widgets),
	.dapm_routes = byt_rt5651_audio_map,
	.num_dapm_routes = ARRAY_SIZE(byt_rt5651_audio_map),
	.fully_routed = true,
};

static int snd_byt_rt5651_mc_probe(struct platform_device *pdev)
{
	int ret_val = 0;

	/* register the soc card */
	byt_rt5651_card.dev = &pdev->dev;

	ret_val = devm_snd_soc_register_card(&pdev->dev, &byt_rt5651_card);

	if (ret_val) {
		dev_err(&pdev->dev, "devm_snd_soc_register_card failed %d\n",
			ret_val);
		return ret_val;
	}
	platform_set_drvdata(pdev, &byt_rt5651_card);
	return ret_val;
}

static struct platform_driver snd_byt_rt5651_mc_driver = {
	.driver = {
		.name = "bytcr_rt5651",
	},
	.probe = snd_byt_rt5651_mc_probe,
};

module_platform_driver(snd_byt_rt5651_mc_driver);

MODULE_DESCRIPTION("ASoC Intel(R) Baytrail CR Machine driver for RT5651");
MODULE_AUTHOR("Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>");
MODULE_LICENSE("GPL v2");
MODULE_ALIAS("platform:bytcr_rt5651");
OpenPOWER on IntegriCloud