summaryrefslogtreecommitdiffstats
path: root/sound/soc/intel/boards/bytcht_da7213.c
blob: cfeba27252ba58e0b9565a1172e9708d2316136b (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
// SPDX-License-Identifier: GPL-2.0-only
/*
 *  bytcht-da7213.c - ASoc Machine driver for Intel Baytrail and
 *             Cherrytrail-based platforms, with Dialog DA7213 codec
 *
 *  Copyright (C) 2017 Intel Corporation
 *  Author: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
 *
 *  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 *
 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 */

#include <linux/module.h>
#include <linux/acpi.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/soc.h>
#include <sound/soc-acpi.h>
#include "../../codecs/da7213.h"
#include "../atom/sst-atom-controls.h"

static const struct snd_kcontrol_new controls[] = {
	SOC_DAPM_PIN_SWITCH("Headphone Jack"),
	SOC_DAPM_PIN_SWITCH("Headset Mic"),
	SOC_DAPM_PIN_SWITCH("Mic"),
	SOC_DAPM_PIN_SWITCH("Aux In"),
};

static const struct snd_soc_dapm_widget dapm_widgets[] = {
	SND_SOC_DAPM_HP("Headphone Jack", NULL),
	SND_SOC_DAPM_MIC("Headset Mic", NULL),
	SND_SOC_DAPM_MIC("Mic", NULL),
	SND_SOC_DAPM_LINE("Aux In", NULL),
};

static const struct snd_soc_dapm_route audio_map[] = {
	{"Headphone Jack", NULL, "HPL"},
	{"Headphone Jack", NULL, "HPR"},

	{"AUXL", NULL, "Aux In"},
	{"AUXR", NULL, "Aux In"},

	/* Assume Mic1 is linked to Headset and Mic2 to on-board mic */
	{"MIC1", NULL, "Headset Mic"},
	{"MIC2", NULL, "Mic"},

	/* SOC-codec link */
	{"ssp2 Tx", NULL, "codec_out0"},
	{"ssp2 Tx", NULL, "codec_out1"},
	{"codec_in0", NULL, "ssp2 Rx"},
	{"codec_in1", NULL, "ssp2 Rx"},

	{"Playback", NULL, "ssp2 Tx"},
	{"ssp2 Rx", NULL, "Capture"},
};

static int codec_fixup(struct snd_soc_pcm_runtime *rtd,
		       struct snd_pcm_hw_params *params)
{
	int ret;
	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);

	/* The DSP will convert 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(asoc_rtd_to_cpu(rtd, 0),
				  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(asoc_rtd_to_cpu(rtd, 0), 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 int aif1_startup(struct snd_pcm_substream *substream)
{
	return snd_pcm_hw_constraint_single(substream->runtime,
			SNDRV_PCM_HW_PARAM_RATE, 48000);
}

static int aif1_hw_params(struct snd_pcm_substream *substream,
			  struct snd_pcm_hw_params *params)
{
	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
	struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
	int ret;

	ret = snd_soc_dai_set_sysclk(codec_dai, DA7213_CLKSRC_MCLK,
				     19200000, SND_SOC_CLOCK_IN);
	if (ret < 0)
		dev_err(codec_dai->dev, "can't set codec sysclk configuration\n");

	ret = snd_soc_dai_set_pll(codec_dai, 0,
			DA7213_SYSCLK_PLL_SRM, 0, DA7213_PLL_FREQ_OUT_98304000);
	if (ret < 0) {
		dev_err(codec_dai->dev, "failed to start PLL: %d\n", ret);
		return -EIO;
	}

	return ret;
}

static int aif1_hw_free(struct snd_pcm_substream *substream)
{
	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
	struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
	int ret;

	ret = snd_soc_dai_set_pll(codec_dai, 0,
				  DA7213_SYSCLK_MCLK, 0, 0);
	if (ret < 0) {
		dev_err(codec_dai->dev, "failed to stop PLL: %d\n", ret);
		return -EIO;
	}

	return ret;
}

static const struct snd_soc_ops aif1_ops = {
	.startup = aif1_startup,
};

static const struct snd_soc_ops ssp2_ops = {
	.hw_params = aif1_hw_params,
	.hw_free = aif1_hw_free,

};

SND_SOC_DAILINK_DEF(dummy,
	DAILINK_COMP_ARRAY(COMP_DUMMY()));

SND_SOC_DAILINK_DEF(media,
	DAILINK_COMP_ARRAY(COMP_CPU("media-cpu-dai")));

SND_SOC_DAILINK_DEF(deepbuffer,
	DAILINK_COMP_ARRAY(COMP_CPU("deepbuffer-cpu-dai")));

SND_SOC_DAILINK_DEF(ssp2_port,
	DAILINK_COMP_ARRAY(COMP_CPU("ssp2-port")));
SND_SOC_DAILINK_DEF(ssp2_codec,
	DAILINK_COMP_ARRAY(COMP_CODEC("i2c-DLGS7213:00",
				      "da7213-hifi")));

SND_SOC_DAILINK_DEF(platform,
	DAILINK_COMP_ARRAY(COMP_PLATFORM("sst-mfld-platform")));

static struct snd_soc_dai_link dailink[] = {
	[MERR_DPCM_AUDIO] = {
		.name = "Audio Port",
		.stream_name = "Audio",
		.nonatomic = true,
		.dynamic = 1,
		.dpcm_playback = 1,
		.dpcm_capture = 1,
		.ops = &aif1_ops,
		SND_SOC_DAILINK_REG(media, dummy, platform),
	},
	[MERR_DPCM_DEEP_BUFFER] = {
		.name = "Deep-Buffer Audio Port",
		.stream_name = "Deep-Buffer Audio",
		.nonatomic = true,
		.dynamic = 1,
		.dpcm_playback = 1,
		.ops = &aif1_ops,
		SND_SOC_DAILINK_REG(deepbuffer, dummy, platform),
	},
	/* CODEC<->CODEC link */
	/* back ends */
	{
		.name = "SSP2-Codec",
		.id = 0,
		.no_pcm = 1,
		.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
						| SND_SOC_DAIFMT_CBS_CFS,
		.be_hw_params_fixup = codec_fixup,
		.nonatomic = true,
		.dpcm_playback = 1,
		.dpcm_capture = 1,
		.ops = &ssp2_ops,
		SND_SOC_DAILINK_REG(ssp2_port, ssp2_codec, platform),
	},
};

/* use space before codec name to simplify card ID, and simplify driver name */
#define SOF_CARD_NAME "bytcht da7213" /* card name will be 'sof-bytcht da7213' */
#define SOF_DRIVER_NAME "SOF"

#define CARD_NAME "bytcht-da7213"
#define DRIVER_NAME NULL /* card name will be used for driver name */

/* SoC card */
static struct snd_soc_card bytcht_da7213_card = {
	.name = CARD_NAME,
	.driver_name = DRIVER_NAME,
	.owner = THIS_MODULE,
	.dai_link = dailink,
	.num_links = ARRAY_SIZE(dailink),
	.controls = controls,
	.num_controls = ARRAY_SIZE(controls),
	.dapm_widgets = dapm_widgets,
	.num_dapm_widgets = ARRAY_SIZE(dapm_widgets),
	.dapm_routes = audio_map,
	.num_dapm_routes = ARRAY_SIZE(audio_map),
};

static char codec_name[SND_ACPI_I2C_ID_LEN];

static int bytcht_da7213_probe(struct platform_device *pdev)
{
	struct snd_soc_card *card;
	struct snd_soc_acpi_mach *mach;
	const char *platform_name;
	struct acpi_device *adev;
	bool sof_parent;
	int dai_index = 0;
	int ret_val = 0;
	int i;

	mach = pdev->dev.platform_data;
	card = &bytcht_da7213_card;
	card->dev = &pdev->dev;

	/* fix index of codec dai */
	for (i = 0; i < ARRAY_SIZE(dailink); i++) {
		if (!strcmp(dailink[i].codecs->name, "i2c-DLGS7213:00")) {
			dai_index = i;
			break;
		}
	}

	/* fixup codec name based on HID */
	adev = acpi_dev_get_first_match_dev(mach->id, NULL, -1);
	if (adev) {
		snprintf(codec_name, sizeof(codec_name),
			 "i2c-%s", acpi_dev_name(adev));
		put_device(&adev->dev);
		dailink[dai_index].codecs->name = codec_name;
	}

	/* override plaform name, if required */
	platform_name = mach->mach_params.platform;

	ret_val = snd_soc_fixup_dai_links_platform_name(card, platform_name);
	if (ret_val)
		return ret_val;

	sof_parent = snd_soc_acpi_sof_parent(&pdev->dev);

	/* set card and driver name */
	if (sof_parent) {
		bytcht_da7213_card.name = SOF_CARD_NAME;
		bytcht_da7213_card.driver_name = SOF_DRIVER_NAME;
	} else {
		bytcht_da7213_card.name = CARD_NAME;
		bytcht_da7213_card.driver_name = DRIVER_NAME;
	}

	/* set pm ops */
	if (sof_parent)
		pdev->dev.driver->pm = &snd_soc_pm_ops;

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

static struct platform_driver bytcht_da7213_driver = {
	.driver = {
		.name = "bytcht_da7213",
	},
	.probe = bytcht_da7213_probe,
};
module_platform_driver(bytcht_da7213_driver);

MODULE_DESCRIPTION("ASoC Intel(R) Baytrail/Cherrytrail+DA7213 Machine driver");
MODULE_AUTHOR("Pierre-Louis Bossart");
MODULE_LICENSE("GPL v2");
MODULE_ALIAS("platform:bytcht_da7213");