summaryrefslogtreecommitdiffstats
path: root/sound/soc/qcom/sc7280.c
blob: 43010e4e224202a8c1283b7d0eb322f757692d0a (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
449
450
451
// SPDX-License-Identifier: GPL-2.0-only
//
// Copyright (c) 2020-2021, The Linux Foundation. All rights reserved.
//
// ALSA SoC Machine driver for sc7280

#include <linux/input.h>
#include <linux/module.h>
#include <linux/of_device.h>
#include <linux/platform_device.h>
#include <sound/core.h>
#include <sound/jack.h>
#include <sound/pcm.h>
#include <sound/soc.h>
#include <sound/rt5682s.h>
#include <linux/soundwire/sdw.h>
#include <sound/pcm_params.h>

#include "../codecs/rt5682.h"
#include "../codecs/rt5682s.h"
#include "common.h"
#include "lpass.h"
#include "qdsp6/q6afe.h"

#define DEFAULT_MCLK_RATE              19200000
#define RT5682_PLL_FREQ (48000 * 512)
#define MI2S_BCLK_RATE		1536000

struct sc7280_snd_data {
	struct snd_soc_card card;
	struct sdw_stream_runtime *sruntime[LPASS_MAX_PORTS];
	u32 pri_mi2s_clk_count;
	struct snd_soc_jack hs_jack;
	struct snd_soc_jack hdmi_jack;
	bool jack_setup;
	bool stream_prepared[LPASS_MAX_PORTS];
};

static void sc7280_jack_free(struct snd_jack *jack)
{
	struct snd_soc_component *component = jack->private_data;

	snd_soc_component_set_jack(component, NULL, NULL);
}

static struct snd_soc_jack_pin sc7280_jack_pins[] = {
	{
		.pin = "Headphone Jack",
		.mask = SND_JACK_HEADPHONE,
	},
	{
		.pin = "Headset Mic",
		.mask = SND_JACK_MICROPHONE,
	},
};

static int sc7280_headset_init(struct snd_soc_pcm_runtime *rtd)
{
	struct snd_soc_card *card = rtd->card;
	struct sc7280_snd_data *pdata = snd_soc_card_get_drvdata(card);
	struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
	struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
	struct snd_soc_component *component = codec_dai->component;
	struct snd_jack *jack;
	int rval, i;

	if (!pdata->jack_setup) {
		rval = snd_soc_card_jack_new_pins(card, "Headset Jack",
						  SND_JACK_HEADSET | SND_JACK_LINEOUT |
						  SND_JACK_MECHANICAL |
						  SND_JACK_BTN_0 | SND_JACK_BTN_1 |
						  SND_JACK_BTN_2 | SND_JACK_BTN_3 |
						  SND_JACK_BTN_4 | SND_JACK_BTN_5,
						  &pdata->hs_jack,
						  sc7280_jack_pins,
						  ARRAY_SIZE(sc7280_jack_pins));

		if (rval < 0) {
			dev_err(card->dev, "Unable to add Headset Jack\n");
			return rval;
		}

		jack = pdata->hs_jack.jack;

		snd_jack_set_key(jack, SND_JACK_BTN_0, KEY_PLAYPAUSE);
		snd_jack_set_key(jack, SND_JACK_BTN_1, KEY_VOICECOMMAND);
		snd_jack_set_key(jack, SND_JACK_BTN_2, KEY_VOLUMEUP);
		snd_jack_set_key(jack, SND_JACK_BTN_3, KEY_VOLUMEDOWN);

		jack->private_data = component;
		jack->private_free = sc7280_jack_free;
		pdata->jack_setup = true;
	}
	switch (cpu_dai->id) {
	case MI2S_PRIMARY:
	case LPASS_CDC_DMA_RX0:
	case LPASS_CDC_DMA_TX3:
	case TX_CODEC_DMA_TX_3:
		for_each_rtd_codec_dais(rtd, i, codec_dai) {
			rval = snd_soc_component_set_jack(component, &pdata->hs_jack, NULL);
			if (rval != 0 && rval != -ENOTSUPP) {
				dev_err(card->dev, "Failed to set jack: %d\n", rval);
				return rval;
			}
		}
		break;
	default:
		break;
	}

	return 0;
}

static int sc7280_hdmi_init(struct snd_soc_pcm_runtime *rtd)
{
	struct snd_soc_card *card = rtd->card;
	struct sc7280_snd_data *pdata = snd_soc_card_get_drvdata(card);
	struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
	struct snd_soc_component *component = codec_dai->component;
	struct snd_jack *jack;
	int rval;

	rval = snd_soc_card_jack_new(card, "HDMI Jack",	SND_JACK_LINEOUT,
				     &pdata->hdmi_jack);

	if (rval < 0) {
		dev_err(card->dev, "Unable to add HDMI Jack\n");
		return rval;
	}

	jack = pdata->hdmi_jack.jack;
	jack->private_data = component;
	jack->private_free = sc7280_jack_free;

	return snd_soc_component_set_jack(component, &pdata->hdmi_jack, NULL);
}

static int sc7280_rt5682_init(struct snd_soc_pcm_runtime *rtd)
{
	struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
	struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
	struct snd_soc_card *card = rtd->card;
	struct sc7280_snd_data *data = snd_soc_card_get_drvdata(card);
	int ret;

	if (++data->pri_mi2s_clk_count == 1) {
		snd_soc_dai_set_sysclk(cpu_dai,
			LPASS_MCLK0,
			DEFAULT_MCLK_RATE,
			SNDRV_PCM_STREAM_PLAYBACK);
	}
	snd_soc_dai_set_fmt(codec_dai,
				SND_SOC_DAIFMT_CBC_CFC |
				SND_SOC_DAIFMT_NB_NF |
				SND_SOC_DAIFMT_I2S);

	ret = snd_soc_dai_set_pll(codec_dai, RT5682S_PLL2, RT5682S_PLL_S_MCLK,
					DEFAULT_MCLK_RATE, RT5682_PLL_FREQ);
	if (ret) {
		dev_err(rtd->dev, "can't set codec pll: %d\n", ret);
		return ret;
	}

	ret = snd_soc_dai_set_sysclk(codec_dai, RT5682S_SCLK_S_PLL2,
					RT5682_PLL_FREQ,
					SND_SOC_CLOCK_IN);

	if (ret) {
		dev_err(rtd->dev, "snd_soc_dai_set_sysclk err = %d\n",
			ret);
		return ret;
	}

	return 0;
}

static int sc7280_init(struct snd_soc_pcm_runtime *rtd)
{
	struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);

	switch (cpu_dai->id) {
	case MI2S_PRIMARY:
	case LPASS_CDC_DMA_TX3:
	case TX_CODEC_DMA_TX_3:
		return sc7280_headset_init(rtd);
	case LPASS_CDC_DMA_RX0:
	case LPASS_CDC_DMA_VA_TX0:
	case MI2S_SECONDARY:
	case RX_CODEC_DMA_RX_0:
	case SECONDARY_MI2S_RX:
	case VA_CODEC_DMA_TX_0:
		return 0;
	case LPASS_DP_RX:
		return sc7280_hdmi_init(rtd);
	default:
		dev_err(rtd->dev, "%s: invalid dai id 0x%x\n", __func__, cpu_dai->id);
	}

	return -EINVAL;
}

static int sc7280_snd_hw_params(struct snd_pcm_substream *substream,
				struct snd_pcm_hw_params *params)
{
	struct snd_pcm_runtime *runtime = substream->runtime;
	struct snd_soc_pcm_runtime *rtd = substream->private_data;
	struct snd_soc_dai *codec_dai;
	const struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
	struct sc7280_snd_data *pdata = snd_soc_card_get_drvdata(rtd->card);
	struct sdw_stream_runtime *sruntime;
	int i;

	if (!rtd->dai_link->no_pcm) {
		snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_CHANNELS, 2, 2);
		snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_RATE, 48000, 48000);
	}

	switch (cpu_dai->id) {
	case LPASS_CDC_DMA_TX3:
	case LPASS_CDC_DMA_RX0:
	case RX_CODEC_DMA_RX_0:
	case SECONDARY_MI2S_RX:
	case TX_CODEC_DMA_TX_3:
	case VA_CODEC_DMA_TX_0:
		for_each_rtd_codec_dais(rtd, i, codec_dai) {
			sruntime = snd_soc_dai_get_stream(codec_dai, substream->stream);
			if (sruntime != ERR_PTR(-ENOTSUPP))
				pdata->sruntime[cpu_dai->id] = sruntime;
		}
		break;
	}

	return 0;
}

static int sc7280_snd_swr_prepare(struct snd_pcm_substream *substream)
{
	struct snd_soc_pcm_runtime *rtd = substream->private_data;
	const struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
	struct sc7280_snd_data *data = snd_soc_card_get_drvdata(rtd->card);
	struct sdw_stream_runtime *sruntime = data->sruntime[cpu_dai->id];
	int ret;

	if (!sruntime)
		return 0;

	if (data->stream_prepared[cpu_dai->id]) {
		sdw_disable_stream(sruntime);
		sdw_deprepare_stream(sruntime);
		data->stream_prepared[cpu_dai->id] = false;
	}

	ret = sdw_prepare_stream(sruntime);
	if (ret)
		return ret;

	ret = sdw_enable_stream(sruntime);
	if (ret) {
		sdw_deprepare_stream(sruntime);
		return ret;
	}
	data->stream_prepared[cpu_dai->id] = true;

	return ret;
}

static int sc7280_snd_prepare(struct snd_pcm_substream *substream)
{
	struct snd_soc_pcm_runtime *rtd = substream->private_data;
	const struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);

	switch (cpu_dai->id) {
	case LPASS_CDC_DMA_RX0:
	case LPASS_CDC_DMA_TX3:
	case RX_CODEC_DMA_RX_0:
	case TX_CODEC_DMA_TX_3:
	case VA_CODEC_DMA_TX_0:
		return sc7280_snd_swr_prepare(substream);
	default:
		break;
	}

	return 0;
}

static int sc7280_snd_hw_free(struct snd_pcm_substream *substream)
{
	struct snd_soc_pcm_runtime *rtd = substream->private_data;
	struct sc7280_snd_data *data = snd_soc_card_get_drvdata(rtd->card);
	const struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
	struct sdw_stream_runtime *sruntime = data->sruntime[cpu_dai->id];

	switch (cpu_dai->id) {
	case LPASS_CDC_DMA_RX0:
	case LPASS_CDC_DMA_TX3:
	case RX_CODEC_DMA_RX_0:
	case TX_CODEC_DMA_TX_3:
	case VA_CODEC_DMA_TX_0:
		if (sruntime && data->stream_prepared[cpu_dai->id]) {
			sdw_disable_stream(sruntime);
			sdw_deprepare_stream(sruntime);
			data->stream_prepared[cpu_dai->id] = false;
		}
		break;
	default:
		break;
	}
	return 0;
}

static void sc7280_snd_shutdown(struct snd_pcm_substream *substream)
{
	struct snd_soc_pcm_runtime *rtd = substream->private_data;
	struct snd_soc_card *card = rtd->card;
	struct sc7280_snd_data *data = snd_soc_card_get_drvdata(card);
	struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);

	switch (cpu_dai->id) {
	case MI2S_PRIMARY:
		if (--data->pri_mi2s_clk_count == 0) {
			snd_soc_dai_set_sysclk(cpu_dai,
					       LPASS_MCLK0,
					       0,
					       SNDRV_PCM_STREAM_PLAYBACK);
		}
		break;
	case SECONDARY_MI2S_RX:
		snd_soc_dai_set_sysclk(cpu_dai, Q6AFE_LPASS_CLK_ID_SEC_MI2S_IBIT,
					       0, SNDRV_PCM_STREAM_PLAYBACK);
		break;
	default:
		break;
	}
}

static int sc7280_snd_startup(struct snd_pcm_substream *substream)
{
	unsigned int fmt = SND_SOC_DAIFMT_CBS_CFS;
	unsigned int codec_dai_fmt = SND_SOC_DAIFMT_CBS_CFS;
	struct snd_soc_pcm_runtime *rtd = substream->private_data;
	struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
	struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
	int ret = 0;

	switch (cpu_dai->id) {
	case MI2S_PRIMARY:
		ret = sc7280_rt5682_init(rtd);
		break;
	case SECONDARY_MI2S_RX:
		codec_dai_fmt |= SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_I2S;

		snd_soc_dai_set_sysclk(cpu_dai, Q6AFE_LPASS_CLK_ID_SEC_MI2S_IBIT,
			MI2S_BCLK_RATE, SNDRV_PCM_STREAM_PLAYBACK);

		snd_soc_dai_set_fmt(cpu_dai, fmt);
		snd_soc_dai_set_fmt(codec_dai, codec_dai_fmt);
		break;
	default:
		break;
	}
	return ret;
}

static const struct snd_soc_ops sc7280_ops = {
	.startup = sc7280_snd_startup,
	.hw_params = sc7280_snd_hw_params,
	.hw_free = sc7280_snd_hw_free,
	.prepare = sc7280_snd_prepare,
	.shutdown = sc7280_snd_shutdown,
};

static const struct snd_soc_dapm_widget sc7280_snd_widgets[] = {
	SND_SOC_DAPM_HP("Headphone Jack", NULL),
	SND_SOC_DAPM_MIC("Headset Mic", NULL),
};

static const struct snd_kcontrol_new sc7280_snd_controls[] = {
	SOC_DAPM_PIN_SWITCH("Headphone Jack"),
	SOC_DAPM_PIN_SWITCH("Headset Mic"),
};

static int sc7280_snd_be_hw_params_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);
	struct snd_mask *fmt = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT);

	rate->min = rate->max = 48000;
	channels->min = channels->max = 2;
	snd_mask_set_format(fmt, SNDRV_PCM_FORMAT_S16_LE);

	return 0;
}

static int sc7280_snd_platform_probe(struct platform_device *pdev)
{
	struct snd_soc_card *card;
	struct sc7280_snd_data *data;
	struct device *dev = &pdev->dev;
	struct snd_soc_dai_link *link;
	int ret, i;

	data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL);
	if (!data)
		return -ENOMEM;

	card = &data->card;
	snd_soc_card_set_drvdata(card, data);

	card->owner = THIS_MODULE;
	card->driver_name = "SC7280";
	card->dev = dev;

	card->dapm_widgets = sc7280_snd_widgets;
	card->num_dapm_widgets = ARRAY_SIZE(sc7280_snd_widgets);
	card->controls = sc7280_snd_controls;
	card->num_controls = ARRAY_SIZE(sc7280_snd_controls);

	ret = qcom_snd_parse_of(card);
	if (ret)
		return ret;

	for_each_card_prelinks(card, i, link) {
		link->init = sc7280_init;
		link->ops = &sc7280_ops;
		if (link->no_pcm == 1)
			link->be_hw_params_fixup = sc7280_snd_be_hw_params_fixup;
	}

	return devm_snd_soc_register_card(dev, card);
}

static const struct of_device_id sc7280_snd_device_id[]  = {
	{ .compatible = "google,sc7280-herobrine" },
	{}
};
MODULE_DEVICE_TABLE(of, sc7280_snd_device_id);

static struct platform_driver sc7280_snd_driver = {
	.probe = sc7280_snd_platform_probe,
	.driver = {
		.name = "msm-snd-sc7280",
		.of_match_table = sc7280_snd_device_id,
		.pm = &snd_soc_pm_ops,
	},
};
module_platform_driver(sc7280_snd_driver);

MODULE_DESCRIPTION("sc7280 ASoC Machine Driver");
MODULE_LICENSE("GPL");