summaryrefslogtreecommitdiff
path: root/sound/soc/codecs/ad193x.c
blob: d643557d89a74d753567ed75821ebb16a0477415 (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
452
/*
 * AD193X Audio Codec driver supporting AD1936/7/8/9
 *
 * Copyright 2010 Analog Devices Inc.
 *
 * Licensed under the GPL-2 or later.
 */

#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/device.h>
#include <linux/regmap.h>
#include <linux/slab.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/initval.h>
#include <sound/soc.h>
#include <sound/tlv.h>

#include "ad193x.h"

/* codec private data */
struct ad193x_priv {
	struct regmap *regmap;
	enum ad193x_type type;
	int sysclk;
};

/*
 * AD193X volume/mute/de-emphasis etc. controls
 */
static const char * const ad193x_deemp[] = {"None", "48kHz", "44.1kHz", "32kHz"};

static SOC_ENUM_SINGLE_DECL(ad193x_deemp_enum, AD193X_DAC_CTRL2, 1,
			    ad193x_deemp);

static const DECLARE_TLV_DB_MINMAX(adau193x_tlv, -9563, 0);

static const struct snd_kcontrol_new ad193x_snd_controls[] = {
	/* DAC volume control */
	SOC_DOUBLE_R_TLV("DAC1 Volume", AD193X_DAC_L1_VOL,
			AD193X_DAC_R1_VOL, 0, 0xFF, 1, adau193x_tlv),
	SOC_DOUBLE_R_TLV("DAC2 Volume", AD193X_DAC_L2_VOL,
			AD193X_DAC_R2_VOL, 0, 0xFF, 1, adau193x_tlv),
	SOC_DOUBLE_R_TLV("DAC3 Volume", AD193X_DAC_L3_VOL,
			AD193X_DAC_R3_VOL, 0, 0xFF, 1, adau193x_tlv),
	SOC_DOUBLE_R_TLV("DAC4 Volume", AD193X_DAC_L4_VOL,
			AD193X_DAC_R4_VOL, 0, 0xFF, 1, adau193x_tlv),

	/* DAC switch control */
	SOC_DOUBLE("DAC1 Switch", AD193X_DAC_CHNL_MUTE, AD193X_DACL1_MUTE,
		AD193X_DACR1_MUTE, 1, 1),
	SOC_DOUBLE("DAC2 Switch", AD193X_DAC_CHNL_MUTE, AD193X_DACL2_MUTE,
		AD193X_DACR2_MUTE, 1, 1),
	SOC_DOUBLE("DAC3 Switch", AD193X_DAC_CHNL_MUTE, AD193X_DACL3_MUTE,
		AD193X_DACR3_MUTE, 1, 1),
	SOC_DOUBLE("DAC4 Switch", AD193X_DAC_CHNL_MUTE, AD193X_DACL4_MUTE,
		AD193X_DACR4_MUTE, 1, 1),

	/* DAC de-emphasis */
	SOC_ENUM("Playback Deemphasis", ad193x_deemp_enum),
};

static const struct snd_kcontrol_new ad193x_adc_snd_controls[] = {
	/* ADC switch control */
	SOC_DOUBLE("ADC1 Switch", AD193X_ADC_CTRL0, AD193X_ADCL1_MUTE,
		AD193X_ADCR1_MUTE, 1, 1),
	SOC_DOUBLE("ADC2 Switch", AD193X_ADC_CTRL0, AD193X_ADCL2_MUTE,
		AD193X_ADCR2_MUTE, 1, 1),

	/* ADC high-pass filter */
	SOC_SINGLE("ADC High Pass Filter Switch", AD193X_ADC_CTRL0,
			AD193X_ADC_HIGHPASS_FILTER, 1, 0),
};

static const struct snd_soc_dapm_widget ad193x_dapm_widgets[] = {
	SND_SOC_DAPM_DAC("DAC", "Playback", SND_SOC_NOPM, 0, 0),
	SND_SOC_DAPM_PGA("DAC Output", AD193X_DAC_CTRL0, 0, 1, NULL, 0),
	SND_SOC_DAPM_SUPPLY("PLL_PWR", AD193X_PLL_CLK_CTRL0, 0, 1, NULL, 0),
	SND_SOC_DAPM_SUPPLY("SYSCLK", AD193X_PLL_CLK_CTRL0, 7, 0, NULL, 0),
	SND_SOC_DAPM_VMID("VMID"),
	SND_SOC_DAPM_OUTPUT("DAC1OUT"),
	SND_SOC_DAPM_OUTPUT("DAC2OUT"),
	SND_SOC_DAPM_OUTPUT("DAC3OUT"),
	SND_SOC_DAPM_OUTPUT("DAC4OUT"),
};

static const struct snd_soc_dapm_widget ad193x_adc_widgets[] = {
	SND_SOC_DAPM_ADC("ADC", "Capture", SND_SOC_NOPM, 0, 0),
	SND_SOC_DAPM_SUPPLY("ADC_PWR", AD193X_ADC_CTRL0, 0, 1, NULL, 0),
	SND_SOC_DAPM_INPUT("ADC1IN"),
	SND_SOC_DAPM_INPUT("ADC2IN"),
};

static const struct snd_soc_dapm_route audio_paths[] = {
	{ "DAC", NULL, "SYSCLK" },
	{ "DAC Output", NULL, "DAC" },
	{ "DAC Output", NULL, "VMID" },
	{ "DAC1OUT", NULL, "DAC Output" },
	{ "DAC2OUT", NULL, "DAC Output" },
	{ "DAC3OUT", NULL, "DAC Output" },
	{ "DAC4OUT", NULL, "DAC Output" },
	{ "SYSCLK", NULL, "PLL_PWR" },
};

static const struct snd_soc_dapm_route ad193x_adc_audio_paths[] = {
	{ "ADC", NULL, "SYSCLK" },
	{ "ADC", NULL, "ADC_PWR" },
	{ "ADC", NULL, "ADC1IN" },
	{ "ADC", NULL, "ADC2IN" },
};

static inline bool ad193x_has_adc(const struct ad193x_priv *ad193x)
{
	switch (ad193x->type) {
	case AD1933:
	case AD1934:
		return false;
	default:
		break;
	}

	return true;
}

/*
 * DAI ops entries
 */

static int ad193x_mute(struct snd_soc_dai *dai, int mute)
{
	struct ad193x_priv *ad193x = snd_soc_codec_get_drvdata(dai->codec);

	if (mute)
		regmap_update_bits(ad193x->regmap, AD193X_DAC_CTRL2,
				    AD193X_DAC_MASTER_MUTE,
				    AD193X_DAC_MASTER_MUTE);
	else
		regmap_update_bits(ad193x->regmap, AD193X_DAC_CTRL2,
				    AD193X_DAC_MASTER_MUTE, 0);

	return 0;
}

static int ad193x_set_tdm_slot(struct snd_soc_dai *dai, unsigned int tx_mask,
			       unsigned int rx_mask, int slots, int width)
{
	struct ad193x_priv *ad193x = snd_soc_codec_get_drvdata(dai->codec);
	unsigned int channels;

	switch (slots) {
	case 2:
		channels = AD193X_2_CHANNELS;
		break;
	case 4:
		channels = AD193X_4_CHANNELS;
		break;
	case 8:
		channels = AD193X_8_CHANNELS;
		break;
	case 16:
		channels = AD193X_16_CHANNELS;
		break;
	default:
		return -EINVAL;
	}

	regmap_update_bits(ad193x->regmap, AD193X_DAC_CTRL1,
		AD193X_DAC_CHAN_MASK, channels << AD193X_DAC_CHAN_SHFT);
	if (ad193x_has_adc(ad193x))
		regmap_update_bits(ad193x->regmap, AD193X_ADC_CTRL2,
				   AD193X_ADC_CHAN_MASK,
				   channels << AD193X_ADC_CHAN_SHFT);

	return 0;
}

static int ad193x_set_dai_fmt(struct snd_soc_dai *codec_dai,
		unsigned int fmt)
{
	struct ad193x_priv *ad193x = snd_soc_codec_get_drvdata(codec_dai->codec);
	unsigned int adc_serfmt = 0;
	unsigned int adc_fmt = 0;
	unsigned int dac_fmt = 0;

	/* At present, the driver only support AUX ADC mode(SND_SOC_DAIFMT_I2S
	 * with TDM) and ADC&DAC TDM mode(SND_SOC_DAIFMT_DSP_A)
	 */
	switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
	case SND_SOC_DAIFMT_I2S:
		adc_serfmt |= AD193X_ADC_SERFMT_TDM;
		break;
	case SND_SOC_DAIFMT_DSP_A:
		adc_serfmt |= AD193X_ADC_SERFMT_AUX;
		break;
	default:
		if (ad193x_has_adc(ad193x))
			return -EINVAL;
		break;
	}

	switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
	case SND_SOC_DAIFMT_NB_NF: /* normal bit clock + frame */
		break;
	case SND_SOC_DAIFMT_NB_IF: /* normal bclk + invert frm */
		adc_fmt |= AD193X_ADC_LEFT_HIGH;
		dac_fmt |= AD193X_DAC_LEFT_HIGH;
		break;
	case SND_SOC_DAIFMT_IB_NF: /* invert bclk + normal frm */
		adc_fmt |= AD193X_ADC_BCLK_INV;
		dac_fmt |= AD193X_DAC_BCLK_INV;
		break;
	case SND_SOC_DAIFMT_IB_IF: /* invert bclk + frm */
		adc_fmt |= AD193X_ADC_LEFT_HIGH;
		adc_fmt |= AD193X_ADC_BCLK_INV;
		dac_fmt |= AD193X_DAC_LEFT_HIGH;
		dac_fmt |= AD193X_DAC_BCLK_INV;
		break;
	default:
		return -EINVAL;
	}

	switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
	case SND_SOC_DAIFMT_CBM_CFM: /* codec clk & frm master */
		adc_fmt |= AD193X_ADC_LCR_MASTER;
		adc_fmt |= AD193X_ADC_BCLK_MASTER;
		dac_fmt |= AD193X_DAC_LCR_MASTER;
		dac_fmt |= AD193X_DAC_BCLK_MASTER;
		break;
	case SND_SOC_DAIFMT_CBS_CFM: /* codec clk slave & frm master */
		adc_fmt |= AD193X_ADC_LCR_MASTER;
		dac_fmt |= AD193X_DAC_LCR_MASTER;
		break;
	case SND_SOC_DAIFMT_CBM_CFS: /* codec clk master & frame slave */
		adc_fmt |= AD193X_ADC_BCLK_MASTER;
		dac_fmt |= AD193X_DAC_BCLK_MASTER;
		break;
	case SND_SOC_DAIFMT_CBS_CFS: /* codec clk & frm slave */
		break;
	default:
		return -EINVAL;
	}

	if (ad193x_has_adc(ad193x)) {
		regmap_update_bits(ad193x->regmap, AD193X_ADC_CTRL1,
				   AD193X_ADC_SERFMT_MASK, adc_serfmt);
		regmap_update_bits(ad193x->regmap, AD193X_ADC_CTRL2,
				   AD193X_ADC_FMT_MASK, adc_fmt);
	}
	regmap_update_bits(ad193x->regmap, AD193X_DAC_CTRL1,
		AD193X_DAC_FMT_MASK, dac_fmt);

	return 0;
}

static int ad193x_set_dai_sysclk(struct snd_soc_dai *codec_dai,
		int clk_id, unsigned int freq, int dir)
{
	struct snd_soc_codec *codec = codec_dai->codec;
	struct ad193x_priv *ad193x = snd_soc_codec_get_drvdata(codec);
	switch (freq) {
	case 12288000:
	case 18432000:
	case 24576000:
	case 36864000:
		ad193x->sysclk = freq;
		return 0;
	}
	return -EINVAL;
}

static int ad193x_hw_params(struct snd_pcm_substream *substream,
		struct snd_pcm_hw_params *params,
		struct snd_soc_dai *dai)
{
	int word_len = 0, master_rate = 0;
	struct snd_soc_codec *codec = dai->codec;
	struct ad193x_priv *ad193x = snd_soc_codec_get_drvdata(codec);

	/* bit size */
	switch (params_width(params)) {
	case 16:
		word_len = 3;
		break;
	case 20:
		word_len = 1;
		break;
	case 24:
	case 32:
		word_len = 0;
		break;
	}

	switch (ad193x->sysclk) {
	case 12288000:
		master_rate = AD193X_PLL_INPUT_256;
		break;
	case 18432000:
		master_rate = AD193X_PLL_INPUT_384;
		break;
	case 24576000:
		master_rate = AD193X_PLL_INPUT_512;
		break;
	case 36864000:
		master_rate = AD193X_PLL_INPUT_768;
		break;
	}

	regmap_update_bits(ad193x->regmap, AD193X_PLL_CLK_CTRL0,
			    AD193X_PLL_INPUT_MASK, master_rate);

	regmap_update_bits(ad193x->regmap, AD193X_DAC_CTRL2,
			    AD193X_DAC_WORD_LEN_MASK,
			    word_len << AD193X_DAC_WORD_LEN_SHFT);

	if (ad193x_has_adc(ad193x))
		regmap_update_bits(ad193x->regmap, AD193X_ADC_CTRL1,
				   AD193X_ADC_WORD_LEN_MASK, word_len);

	return 0;
}

static const struct snd_soc_dai_ops ad193x_dai_ops = {
	.hw_params = ad193x_hw_params,
	.digital_mute = ad193x_mute,
	.set_tdm_slot = ad193x_set_tdm_slot,
	.set_sysclk	= ad193x_set_dai_sysclk,
	.set_fmt = ad193x_set_dai_fmt,
};

/* codec DAI instance */
static struct snd_soc_dai_driver ad193x_dai = {
	.name = "ad193x-hifi",
	.playback = {
		.stream_name = "Playback",
		.channels_min = 2,
		.channels_max = 8,
		.rates = SNDRV_PCM_RATE_48000,
		.formats = SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S16_LE |
			SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S24_LE,
	},
	.capture = {
		.stream_name = "Capture",
		.channels_min = 2,
		.channels_max = 4,
		.rates = SNDRV_PCM_RATE_48000,
		.formats = SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S16_LE |
			SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S24_LE,
	},
	.ops = &ad193x_dai_ops,
};

static int ad193x_codec_probe(struct snd_soc_codec *codec)
{
	struct ad193x_priv *ad193x = snd_soc_codec_get_drvdata(codec);
	struct snd_soc_dapm_context *dapm = snd_soc_codec_get_dapm(codec);
	int num, ret;

	/* default setting for ad193x */

	/* unmute dac channels */
	regmap_write(ad193x->regmap, AD193X_DAC_CHNL_MUTE, 0x0);
	/* de-emphasis: 48kHz, powedown dac */
	regmap_write(ad193x->regmap, AD193X_DAC_CTRL2, 0x1A);
	/* dac in tdm mode */
	regmap_write(ad193x->regmap, AD193X_DAC_CTRL0, 0x40);

	/* adc only */
	if (ad193x_has_adc(ad193x)) {
		/* high-pass filter enable */
		regmap_write(ad193x->regmap, AD193X_ADC_CTRL0, 0x3);
		/* sata delay=1, adc aux mode */
		regmap_write(ad193x->regmap, AD193X_ADC_CTRL1, 0x43);
	}

	/* pll input: mclki/xi */
	regmap_write(ad193x->regmap, AD193X_PLL_CLK_CTRL0, 0x99); /* mclk=24.576Mhz: 0x9D; mclk=12.288Mhz: 0x99 */
	regmap_write(ad193x->regmap, AD193X_PLL_CLK_CTRL1, 0x04);

	/* adc only */
	if (ad193x_has_adc(ad193x)) {
		/* add adc controls */
		num = ARRAY_SIZE(ad193x_adc_snd_controls);
		ret = snd_soc_add_codec_controls(codec,
						 ad193x_adc_snd_controls,
						 num);
		if (ret)
			return ret;

		/* add adc widgets */
		num = ARRAY_SIZE(ad193x_adc_widgets);
		ret = snd_soc_dapm_new_controls(dapm,
						ad193x_adc_widgets,
						num);
		if (ret)
			return ret;

		/* add adc routes */
		num = ARRAY_SIZE(ad193x_adc_audio_paths);
		ret = snd_soc_dapm_add_routes(dapm,
					      ad193x_adc_audio_paths,
					      num);
		if (ret)
			return ret;
	}

	return 0;
}

static struct snd_soc_codec_driver soc_codec_dev_ad193x = {
	.probe = ad193x_codec_probe,
	.component_driver = {
		.controls		= ad193x_snd_controls,
		.num_controls		= ARRAY_SIZE(ad193x_snd_controls),
		.dapm_widgets		= ad193x_dapm_widgets,
		.num_dapm_widgets	= ARRAY_SIZE(ad193x_dapm_widgets),
		.dapm_routes		= audio_paths,
		.num_dapm_routes	= ARRAY_SIZE(audio_paths),
	},
};

const struct regmap_config ad193x_regmap_config = {
	.max_register = AD193X_NUM_REGS - 1,
};
EXPORT_SYMBOL_GPL(ad193x_regmap_config);

int ad193x_probe(struct device *dev, struct regmap *regmap,
		 enum ad193x_type type)
{
	struct ad193x_priv *ad193x;

	if (IS_ERR(regmap))
		return PTR_ERR(regmap);

	ad193x = devm_kzalloc(dev, sizeof(*ad193x), GFP_KERNEL);
	if (ad193x == NULL)
		return -ENOMEM;

	ad193x->regmap = regmap;
	ad193x->type = type;

	dev_set_drvdata(dev, ad193x);

	return snd_soc_register_codec(dev, &soc_codec_dev_ad193x,
		&ad193x_dai, 1);
}
EXPORT_SYMBOL_GPL(ad193x_probe);

MODULE_DESCRIPTION("ASoC ad193x driver");
MODULE_AUTHOR("Barry Song <21cnbao@gmail.com>");
MODULE_LICENSE("GPL");