summaryrefslogtreecommitdiffstats
path: root/sound/soc/intel/boards/sof_pcm512x.c
blob: d4c67d5340a92a5bda7da1bd8b45fd229ad35c2c (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
// SPDX-License-Identifier: GPL-2.0-only
// Copyright(c) 2018-2020 Intel Corporation.

/*
 * Intel SOF Machine Driver for Intel platforms with TI PCM512x codec,
 * e.g. Up or Up2 with Hifiberry DAC+ HAT
 */
#include <linux/clk.h>
#include <linux/dmi.h>
#include <linux/i2c.h>
#include <linux/input.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/types.h>
#include <sound/core.h>
#include <sound/jack.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/soc.h>
#include <sound/soc-acpi.h>
#include "../../codecs/pcm512x.h"
#include "../common/soc-intel-quirks.h"
#include "hda_dsp_common.h"

#define NAME_SIZE 32

#define SOF_PCM512X_SSP_CODEC(quirk)		((quirk) & GENMASK(3, 0))
#define SOF_PCM512X_SSP_CODEC_MASK			(GENMASK(3, 0))
#define SOF_PCM512X_ENABLE_SSP_CAPTURE		BIT(4)
#define SOF_PCM512X_ENABLE_DMIC			BIT(5)

#define IDISP_CODEC_MASK	0x4

/* Default: SSP5 */
static unsigned long sof_pcm512x_quirk =
	SOF_PCM512X_SSP_CODEC(5) |
	SOF_PCM512X_ENABLE_SSP_CAPTURE |
	SOF_PCM512X_ENABLE_DMIC;

static bool is_legacy_cpu;

struct sof_hdmi_pcm {
	struct list_head head;
	struct snd_soc_dai *codec_dai;
	int device;
};

struct sof_card_private {
	struct list_head hdmi_pcm_list;
	bool idisp_codec;
};

static int sof_pcm512x_quirk_cb(const struct dmi_system_id *id)
{
	sof_pcm512x_quirk = (unsigned long)id->driver_data;
	return 1;
}

static const struct dmi_system_id sof_pcm512x_quirk_table[] = {
	{
		.callback = sof_pcm512x_quirk_cb,
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "AAEON"),
			DMI_MATCH(DMI_PRODUCT_NAME, "UP-CHT01"),
		},
		.driver_data = (void *)(SOF_PCM512X_SSP_CODEC(2)),
	},
	{}
};

static int sof_hdmi_init(struct snd_soc_pcm_runtime *rtd)
{
	struct sof_card_private *ctx = snd_soc_card_get_drvdata(rtd->card);
	struct snd_soc_dai *dai = asoc_rtd_to_codec(rtd, 0);
	struct sof_hdmi_pcm *pcm;

	pcm = devm_kzalloc(rtd->card->dev, sizeof(*pcm), GFP_KERNEL);
	if (!pcm)
		return -ENOMEM;

	/* dai_link id is 1:1 mapped to the PCM device */
	pcm->device = rtd->dai_link->id;
	pcm->codec_dai = dai;

	list_add_tail(&pcm->head, &ctx->hdmi_pcm_list);

	return 0;
}

static int sof_pcm512x_codec_init(struct snd_soc_pcm_runtime *rtd)
{
	struct snd_soc_component *codec = asoc_rtd_to_codec(rtd, 0)->component;

	snd_soc_component_update_bits(codec, PCM512x_GPIO_EN, 0x08, 0x08);
	snd_soc_component_update_bits(codec, PCM512x_GPIO_OUTPUT_4, 0x0f, 0x02);
	snd_soc_component_update_bits(codec, PCM512x_GPIO_CONTROL_1,
				      0x08, 0x08);

	return 0;
}

static int aif1_startup(struct snd_pcm_substream *substream)
{
	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
	struct snd_soc_component *codec = asoc_rtd_to_codec(rtd, 0)->component;

	snd_soc_component_update_bits(codec, PCM512x_GPIO_CONTROL_1,
				      0x08, 0x08);

	return 0;
}

static void aif1_shutdown(struct snd_pcm_substream *substream)
{
	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
	struct snd_soc_component *codec = asoc_rtd_to_codec(rtd, 0)->component;

	snd_soc_component_update_bits(codec, PCM512x_GPIO_CONTROL_1,
				      0x08, 0x00);
}

static const struct snd_soc_ops sof_pcm512x_ops = {
	.startup = aif1_startup,
	.shutdown = aif1_shutdown,
};

static struct snd_soc_dai_link_component platform_component[] = {
	{
		/* name might be overridden during probe */
		.name = "0000:00:1f.3"
	}
};

static int sof_card_late_probe(struct snd_soc_card *card)
{
	struct sof_card_private *ctx = snd_soc_card_get_drvdata(card);
	struct sof_hdmi_pcm *pcm;

	/* HDMI is not supported by SOF on Baytrail/CherryTrail */
	if (is_legacy_cpu)
		return 0;

	if (list_empty(&ctx->hdmi_pcm_list))
		return -EINVAL;

	if (!ctx->idisp_codec)
		return 0;

	pcm = list_first_entry(&ctx->hdmi_pcm_list, struct sof_hdmi_pcm, head);

	return hda_dsp_hdmi_build_controls(card, pcm->codec_dai->component);
}

static const struct snd_kcontrol_new sof_controls[] = {
	SOC_DAPM_PIN_SWITCH("Ext Spk"),
};

static const struct snd_soc_dapm_widget sof_widgets[] = {
	SND_SOC_DAPM_SPK("Ext Spk", NULL),
};

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

static const struct snd_soc_dapm_route sof_map[] = {
	/* Speaker */
	{"Ext Spk", NULL, "OUTR"},
	{"Ext Spk", NULL, "OUTL"},
};

static const struct snd_soc_dapm_route dmic_map[] = {
	/* digital mics */
	{"DMic", NULL, "SoC DMIC"},
};

static int dmic_init(struct snd_soc_pcm_runtime *rtd)
{
	struct snd_soc_card *card = rtd->card;
	int ret;

	ret = snd_soc_dapm_new_controls(&card->dapm, dmic_widgets,
					ARRAY_SIZE(dmic_widgets));
	if (ret) {
		dev_err(card->dev, "DMic widget addition failed: %d\n", ret);
		/* Don't need to add routes if widget addition failed */
		return ret;
	}

	ret = snd_soc_dapm_add_routes(&card->dapm, dmic_map,
				      ARRAY_SIZE(dmic_map));

	if (ret)
		dev_err(card->dev, "DMic map addition failed: %d\n", ret);

	return ret;
}

/* sof audio machine driver for pcm512x codec */
static struct snd_soc_card sof_audio_card_pcm512x = {
	.name = "pcm512x",
	.owner = THIS_MODULE,
	.controls = sof_controls,
	.num_controls = ARRAY_SIZE(sof_controls),
	.dapm_widgets = sof_widgets,
	.num_dapm_widgets = ARRAY_SIZE(sof_widgets),
	.dapm_routes = sof_map,
	.num_dapm_routes = ARRAY_SIZE(sof_map),
	.fully_routed = true,
	.late_probe = sof_card_late_probe,
};

SND_SOC_DAILINK_DEF(pcm512x_component,
	DAILINK_COMP_ARRAY(COMP_CODEC("i2c-104C5122:00", "pcm512x-hifi")));
SND_SOC_DAILINK_DEF(dmic_component,
	DAILINK_COMP_ARRAY(COMP_CODEC("dmic-codec", "dmic-hifi")));

static struct snd_soc_dai_link *sof_card_dai_links_create(struct device *dev,
							  int ssp_codec,
							  int dmic_be_num,
							  int hdmi_num,
							  bool idisp_codec)
{
	struct snd_soc_dai_link_component *idisp_components;
	struct snd_soc_dai_link_component *cpus;
	struct snd_soc_dai_link *links;
	int i, id = 0;

	links = devm_kcalloc(dev, sof_audio_card_pcm512x.num_links,
			sizeof(struct snd_soc_dai_link), GFP_KERNEL);
	cpus = devm_kcalloc(dev, sof_audio_card_pcm512x.num_links,
			sizeof(struct snd_soc_dai_link_component), GFP_KERNEL);
	if (!links || !cpus)
		goto devm_err;

	/* codec SSP */
	links[id].name = devm_kasprintf(dev, GFP_KERNEL,
					"SSP%d-Codec", ssp_codec);
	if (!links[id].name)
		goto devm_err;

	links[id].id = id;
	links[id].codecs = pcm512x_component;
	links[id].num_codecs = ARRAY_SIZE(pcm512x_component);
	links[id].platforms = platform_component;
	links[id].num_platforms = ARRAY_SIZE(platform_component);
	links[id].init = sof_pcm512x_codec_init;
	links[id].ops = &sof_pcm512x_ops;
	links[id].dpcm_playback = 1;
	/*
	 * capture only supported with specific versions of the Hifiberry DAC+
	 */
	if (sof_pcm512x_quirk & SOF_PCM512X_ENABLE_SSP_CAPTURE)
		links[id].dpcm_capture = 1;
	links[id].no_pcm = 1;
	links[id].cpus = &cpus[id];
	links[id].num_cpus = 1;
	if (is_legacy_cpu) {
		links[id].cpus->dai_name = devm_kasprintf(dev, GFP_KERNEL,
							  "ssp%d-port",
							  ssp_codec);
		if (!links[id].cpus->dai_name)
			goto devm_err;
	} else {
		links[id].cpus->dai_name = devm_kasprintf(dev, GFP_KERNEL,
							  "SSP%d Pin",
							  ssp_codec);
		if (!links[id].cpus->dai_name)
			goto devm_err;
	}
	id++;

	/* dmic */
	if (dmic_be_num > 0) {
		/* at least we have dmic01 */
		links[id].name = "dmic01";
		links[id].cpus = &cpus[id];
		links[id].cpus->dai_name = "DMIC01 Pin";
		links[id].init = dmic_init;
		if (dmic_be_num > 1) {
			/* set up 2 BE links at most */
			links[id + 1].name = "dmic16k";
			links[id + 1].cpus = &cpus[id + 1];
			links[id + 1].cpus->dai_name = "DMIC16k Pin";
			dmic_be_num = 2;
		}
	}

	for (i = 0; i < dmic_be_num; i++) {
		links[id].id = id;
		links[id].num_cpus = 1;
		links[id].codecs = dmic_component;
		links[id].num_codecs = ARRAY_SIZE(dmic_component);
		links[id].platforms = platform_component;
		links[id].num_platforms = ARRAY_SIZE(platform_component);
		links[id].ignore_suspend = 1;
		links[id].dpcm_capture = 1;
		links[id].no_pcm = 1;
		id++;
	}

	/* HDMI */
	if (hdmi_num > 0) {
		idisp_components = devm_kcalloc(dev, hdmi_num,
				sizeof(struct snd_soc_dai_link_component),
				GFP_KERNEL);
		if (!idisp_components)
			goto devm_err;
	}
	for (i = 1; i <= hdmi_num; i++) {
		links[id].name = devm_kasprintf(dev, GFP_KERNEL,
						"iDisp%d", i);
		if (!links[id].name)
			goto devm_err;

		links[id].id = id;
		links[id].cpus = &cpus[id];
		links[id].num_cpus = 1;
		links[id].cpus->dai_name = devm_kasprintf(dev, GFP_KERNEL,
							  "iDisp%d Pin", i);
		if (!links[id].cpus->dai_name)
			goto devm_err;

		/*
		 * topology cannot be loaded if codec is missing, so
		 * use the dummy codec if needed
		 */
		if (idisp_codec) {
			idisp_components[i - 1].name = "ehdaudio0D2";
			idisp_components[i - 1].dai_name =
				devm_kasprintf(dev, GFP_KERNEL,
					       "intel-hdmi-hifi%d", i);
		} else {
			idisp_components[i - 1].name = "snd-soc-dummy";
			idisp_components[i - 1].dai_name = "snd-soc-dummy-dai";
		}
		if (!idisp_components[i - 1].dai_name)
			goto devm_err;

		links[id].codecs = &idisp_components[i - 1];
		links[id].num_codecs = 1;
		links[id].platforms = platform_component;
		links[id].num_platforms = ARRAY_SIZE(platform_component);
		links[id].init = sof_hdmi_init;
		links[id].dpcm_playback = 1;
		links[id].no_pcm = 1;
		id++;
	}

	return links;
devm_err:
	return NULL;
}

static int sof_audio_probe(struct platform_device *pdev)
{
	struct snd_soc_acpi_mach *mach = pdev->dev.platform_data;
	struct snd_soc_dai_link *dai_links;
	struct sof_card_private *ctx;
	int dmic_be_num, hdmi_num;
	int ret, ssp_codec;

	ctx = devm_kzalloc(&pdev->dev, sizeof(*ctx), GFP_KERNEL);
	if (!ctx)
		return -ENOMEM;

	hdmi_num = 0;
	if (soc_intel_is_byt() || soc_intel_is_cht()) {
		is_legacy_cpu = true;
		dmic_be_num = 0;
		/* default quirk for legacy cpu */
		sof_pcm512x_quirk = SOF_PCM512X_SSP_CODEC(2);
	} else {
		dmic_be_num = 2;
		if (mach->mach_params.common_hdmi_codec_drv &&
		    (mach->mach_params.codec_mask & IDISP_CODEC_MASK))
			ctx->idisp_codec = true;

		/* links are always present in topology */
		hdmi_num = 3;
	}

	dmi_check_system(sof_pcm512x_quirk_table);

	dev_dbg(&pdev->dev, "sof_pcm512x_quirk = %lx\n", sof_pcm512x_quirk);

	ssp_codec = sof_pcm512x_quirk & SOF_PCM512X_SSP_CODEC_MASK;

	if (!(sof_pcm512x_quirk & SOF_PCM512X_ENABLE_DMIC))
		dmic_be_num = 0;

	/* compute number of dai links */
	sof_audio_card_pcm512x.num_links = 1 + dmic_be_num + hdmi_num;

	dai_links = sof_card_dai_links_create(&pdev->dev, ssp_codec,
					      dmic_be_num, hdmi_num,
					      ctx->idisp_codec);
	if (!dai_links)
		return -ENOMEM;

	sof_audio_card_pcm512x.dai_link = dai_links;

	INIT_LIST_HEAD(&ctx->hdmi_pcm_list);

	sof_audio_card_pcm512x.dev = &pdev->dev;

	/* set platform name for each dailink */
	ret = snd_soc_fixup_dai_links_platform_name(&sof_audio_card_pcm512x,
						    mach->mach_params.platform);
	if (ret)
		return ret;

	snd_soc_card_set_drvdata(&sof_audio_card_pcm512x, ctx);

	return devm_snd_soc_register_card(&pdev->dev,
					  &sof_audio_card_pcm512x);
}

static int sof_pcm512x_remove(struct platform_device *pdev)
{
	struct snd_soc_card *card = platform_get_drvdata(pdev);
	struct snd_soc_component *component;

	for_each_card_components(card, component) {
		if (!strcmp(component->name, pcm512x_component[0].name)) {
			snd_soc_component_set_jack(component, NULL, NULL);
			break;
		}
	}

	return 0;
}

static struct platform_driver sof_audio = {
	.probe = sof_audio_probe,
	.remove = sof_pcm512x_remove,
	.driver = {
		.name = "sof_pcm512x",
		.pm = &snd_soc_pm_ops,
	},
};
module_platform_driver(sof_audio)

MODULE_DESCRIPTION("ASoC Intel(R) SOF + PCM512x Machine driver");
MODULE_AUTHOR("Pierre-Louis Bossart");
MODULE_LICENSE("GPL v2");
MODULE_ALIAS("platform:sof_pcm512x");
MODULE_IMPORT_NS(SND_SOC_INTEL_HDA_DSP_COMMON);