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8#include <linux/module.h>
9#include <linux/kernel.h>
10#include <linux/device.h>
11#include <linux/regmap.h>
12#include <linux/slab.h>
13#include <sound/core.h>
14#include <sound/pcm.h>
15#include <sound/pcm_params.h>
16#include <sound/initval.h>
17#include <sound/soc.h>
18#include <sound/tlv.h>
19
20#include "ad193x.h"
21
22
23struct ad193x_priv {
24 struct regmap *regmap;
25 enum ad193x_type type;
26 int sysclk;
27};
28
29
30
31
32static const char * const ad193x_deemp[] = {"None", "48kHz", "44.1kHz", "32kHz"};
33
34static SOC_ENUM_SINGLE_DECL(ad193x_deemp_enum, AD193X_DAC_CTRL2, 1,
35 ad193x_deemp);
36
37static const DECLARE_TLV_DB_MINMAX(adau193x_tlv, -9563, 0);
38
39static const unsigned int ad193x_sb[] = {32};
40
41static struct snd_pcm_hw_constraint_list constr = {
42 .list = ad193x_sb,
43 .count = ARRAY_SIZE(ad193x_sb),
44};
45
46static const struct snd_kcontrol_new ad193x_snd_controls[] = {
47
48 SOC_DOUBLE_R_TLV("DAC1 Volume", AD193X_DAC_L1_VOL,
49 AD193X_DAC_R1_VOL, 0, 0xFF, 1, adau193x_tlv),
50 SOC_DOUBLE_R_TLV("DAC2 Volume", AD193X_DAC_L2_VOL,
51 AD193X_DAC_R2_VOL, 0, 0xFF, 1, adau193x_tlv),
52 SOC_DOUBLE_R_TLV("DAC3 Volume", AD193X_DAC_L3_VOL,
53 AD193X_DAC_R3_VOL, 0, 0xFF, 1, adau193x_tlv),
54 SOC_DOUBLE_R_TLV("DAC4 Volume", AD193X_DAC_L4_VOL,
55 AD193X_DAC_R4_VOL, 0, 0xFF, 1, adau193x_tlv),
56
57
58 SOC_DOUBLE("DAC1 Switch", AD193X_DAC_CHNL_MUTE, AD193X_DACL1_MUTE,
59 AD193X_DACR1_MUTE, 1, 1),
60 SOC_DOUBLE("DAC2 Switch", AD193X_DAC_CHNL_MUTE, AD193X_DACL2_MUTE,
61 AD193X_DACR2_MUTE, 1, 1),
62 SOC_DOUBLE("DAC3 Switch", AD193X_DAC_CHNL_MUTE, AD193X_DACL3_MUTE,
63 AD193X_DACR3_MUTE, 1, 1),
64 SOC_DOUBLE("DAC4 Switch", AD193X_DAC_CHNL_MUTE, AD193X_DACL4_MUTE,
65 AD193X_DACR4_MUTE, 1, 1),
66
67
68 SOC_ENUM("Playback Deemphasis", ad193x_deemp_enum),
69};
70
71static const struct snd_kcontrol_new ad193x_adc_snd_controls[] = {
72
73 SOC_DOUBLE("ADC1 Switch", AD193X_ADC_CTRL0, AD193X_ADCL1_MUTE,
74 AD193X_ADCR1_MUTE, 1, 1),
75 SOC_DOUBLE("ADC2 Switch", AD193X_ADC_CTRL0, AD193X_ADCL2_MUTE,
76 AD193X_ADCR2_MUTE, 1, 1),
77
78
79 SOC_SINGLE("ADC High Pass Filter Switch", AD193X_ADC_CTRL0,
80 AD193X_ADC_HIGHPASS_FILTER, 1, 0),
81};
82
83static const struct snd_soc_dapm_widget ad193x_dapm_widgets[] = {
84 SND_SOC_DAPM_DAC("DAC", "Playback", SND_SOC_NOPM, 0, 0),
85 SND_SOC_DAPM_PGA("DAC Output", AD193X_DAC_CTRL0, 0, 1, NULL, 0),
86 SND_SOC_DAPM_SUPPLY("PLL_PWR", AD193X_PLL_CLK_CTRL0, 0, 1, NULL, 0),
87 SND_SOC_DAPM_SUPPLY("SYSCLK", AD193X_PLL_CLK_CTRL0, 7, 0, NULL, 0),
88 SND_SOC_DAPM_VMID("VMID"),
89 SND_SOC_DAPM_OUTPUT("DAC1OUT"),
90 SND_SOC_DAPM_OUTPUT("DAC2OUT"),
91 SND_SOC_DAPM_OUTPUT("DAC3OUT"),
92 SND_SOC_DAPM_OUTPUT("DAC4OUT"),
93};
94
95static const struct snd_soc_dapm_widget ad193x_adc_widgets[] = {
96 SND_SOC_DAPM_ADC("ADC", "Capture", SND_SOC_NOPM, 0, 0),
97 SND_SOC_DAPM_SUPPLY("ADC_PWR", AD193X_ADC_CTRL0, 0, 1, NULL, 0),
98 SND_SOC_DAPM_INPUT("ADC1IN"),
99 SND_SOC_DAPM_INPUT("ADC2IN"),
100};
101
102static int ad193x_check_pll(struct snd_soc_dapm_widget *source,
103 struct snd_soc_dapm_widget *sink)
104{
105 struct snd_soc_component *component = snd_soc_dapm_to_component(source->dapm);
106 struct ad193x_priv *ad193x = snd_soc_component_get_drvdata(component);
107
108 return !!ad193x->sysclk;
109}
110
111static const struct snd_soc_dapm_route audio_paths[] = {
112 { "DAC", NULL, "SYSCLK" },
113 { "DAC Output", NULL, "DAC" },
114 { "DAC Output", NULL, "VMID" },
115 { "DAC1OUT", NULL, "DAC Output" },
116 { "DAC2OUT", NULL, "DAC Output" },
117 { "DAC3OUT", NULL, "DAC Output" },
118 { "DAC4OUT", NULL, "DAC Output" },
119 { "SYSCLK", NULL, "PLL_PWR", &ad193x_check_pll },
120};
121
122static const struct snd_soc_dapm_route ad193x_adc_audio_paths[] = {
123 { "ADC", NULL, "SYSCLK" },
124 { "ADC", NULL, "ADC_PWR" },
125 { "ADC", NULL, "ADC1IN" },
126 { "ADC", NULL, "ADC2IN" },
127};
128
129static inline bool ad193x_has_adc(const struct ad193x_priv *ad193x)
130{
131 switch (ad193x->type) {
132 case AD1933:
133 case AD1934:
134 return false;
135 default:
136 break;
137 }
138
139 return true;
140}
141
142
143
144
145
146static int ad193x_mute(struct snd_soc_dai *dai, int mute)
147{
148 struct ad193x_priv *ad193x = snd_soc_component_get_drvdata(dai->component);
149
150 if (mute)
151 regmap_update_bits(ad193x->regmap, AD193X_DAC_CTRL2,
152 AD193X_DAC_MASTER_MUTE,
153 AD193X_DAC_MASTER_MUTE);
154 else
155 regmap_update_bits(ad193x->regmap, AD193X_DAC_CTRL2,
156 AD193X_DAC_MASTER_MUTE, 0);
157
158 return 0;
159}
160
161static int ad193x_set_tdm_slot(struct snd_soc_dai *dai, unsigned int tx_mask,
162 unsigned int rx_mask, int slots, int width)
163{
164 struct ad193x_priv *ad193x = snd_soc_component_get_drvdata(dai->component);
165 unsigned int channels;
166
167 switch (slots) {
168 case 2:
169 channels = AD193X_2_CHANNELS;
170 break;
171 case 4:
172 channels = AD193X_4_CHANNELS;
173 break;
174 case 8:
175 channels = AD193X_8_CHANNELS;
176 break;
177 case 16:
178 channels = AD193X_16_CHANNELS;
179 break;
180 default:
181 return -EINVAL;
182 }
183
184 regmap_update_bits(ad193x->regmap, AD193X_DAC_CTRL1,
185 AD193X_DAC_CHAN_MASK, channels << AD193X_DAC_CHAN_SHFT);
186 if (ad193x_has_adc(ad193x))
187 regmap_update_bits(ad193x->regmap, AD193X_ADC_CTRL2,
188 AD193X_ADC_CHAN_MASK,
189 channels << AD193X_ADC_CHAN_SHFT);
190
191 return 0;
192}
193
194static int ad193x_set_dai_fmt(struct snd_soc_dai *codec_dai,
195 unsigned int fmt)
196{
197 struct ad193x_priv *ad193x = snd_soc_component_get_drvdata(codec_dai->component);
198 unsigned int adc_serfmt = 0;
199 unsigned int dac_serfmt = 0;
200 unsigned int adc_fmt = 0;
201 unsigned int dac_fmt = 0;
202
203
204
205
206
207 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
208 case SND_SOC_DAIFMT_I2S:
209 adc_serfmt |= AD193X_ADC_SERFMT_TDM;
210 dac_serfmt |= AD193X_DAC_SERFMT_STEREO;
211 break;
212 case SND_SOC_DAIFMT_DSP_A:
213 adc_serfmt |= AD193X_ADC_SERFMT_AUX;
214 dac_serfmt |= AD193X_DAC_SERFMT_TDM;
215 break;
216 default:
217 if (ad193x_has_adc(ad193x))
218 return -EINVAL;
219 }
220
221 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
222 case SND_SOC_DAIFMT_NB_NF:
223 break;
224 case SND_SOC_DAIFMT_NB_IF:
225 adc_fmt |= AD193X_ADC_LEFT_HIGH;
226 dac_fmt |= AD193X_DAC_LEFT_HIGH;
227 break;
228 case SND_SOC_DAIFMT_IB_NF:
229 adc_fmt |= AD193X_ADC_BCLK_INV;
230 dac_fmt |= AD193X_DAC_BCLK_INV;
231 break;
232 case SND_SOC_DAIFMT_IB_IF:
233 adc_fmt |= AD193X_ADC_LEFT_HIGH;
234 adc_fmt |= AD193X_ADC_BCLK_INV;
235 dac_fmt |= AD193X_DAC_LEFT_HIGH;
236 dac_fmt |= AD193X_DAC_BCLK_INV;
237 break;
238 default:
239 return -EINVAL;
240 }
241
242
243 if (fmt & SND_SOC_DAIFMT_DSP_A)
244 dac_fmt ^= AD193X_DAC_LEFT_HIGH;
245
246 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
247 case SND_SOC_DAIFMT_CBM_CFM:
248 adc_fmt |= AD193X_ADC_LCR_MASTER;
249 adc_fmt |= AD193X_ADC_BCLK_MASTER;
250 dac_fmt |= AD193X_DAC_LCR_MASTER;
251 dac_fmt |= AD193X_DAC_BCLK_MASTER;
252 break;
253 case SND_SOC_DAIFMT_CBS_CFM:
254 adc_fmt |= AD193X_ADC_LCR_MASTER;
255 dac_fmt |= AD193X_DAC_LCR_MASTER;
256 break;
257 case SND_SOC_DAIFMT_CBM_CFS:
258 adc_fmt |= AD193X_ADC_BCLK_MASTER;
259 dac_fmt |= AD193X_DAC_BCLK_MASTER;
260 break;
261 case SND_SOC_DAIFMT_CBS_CFS:
262 break;
263 default:
264 return -EINVAL;
265 }
266
267 if (ad193x_has_adc(ad193x)) {
268 regmap_update_bits(ad193x->regmap, AD193X_ADC_CTRL1,
269 AD193X_ADC_SERFMT_MASK, adc_serfmt);
270 regmap_update_bits(ad193x->regmap, AD193X_ADC_CTRL2,
271 AD193X_ADC_FMT_MASK, adc_fmt);
272 }
273 regmap_update_bits(ad193x->regmap, AD193X_DAC_CTRL0,
274 AD193X_DAC_SERFMT_MASK, dac_serfmt);
275 regmap_update_bits(ad193x->regmap, AD193X_DAC_CTRL1,
276 AD193X_DAC_FMT_MASK, dac_fmt);
277
278 return 0;
279}
280
281static int ad193x_set_dai_sysclk(struct snd_soc_dai *codec_dai,
282 int clk_id, unsigned int freq, int dir)
283{
284 struct snd_soc_component *component = codec_dai->component;
285 struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component);
286 struct ad193x_priv *ad193x = snd_soc_component_get_drvdata(component);
287
288 if (clk_id == AD193X_SYSCLK_MCLK) {
289
290 if (dir == SND_SOC_CLOCK_OUT || freq != 24576000)
291 return -EINVAL;
292
293 regmap_update_bits(ad193x->regmap, AD193X_PLL_CLK_CTRL1,
294 AD193X_PLL_SRC_MASK,
295 AD193X_PLL_DAC_SRC_MCLK |
296 AD193X_PLL_CLK_SRC_MCLK);
297
298 snd_soc_dapm_sync(dapm);
299 return 0;
300 }
301 switch (freq) {
302 case 12288000:
303 case 18432000:
304 case 24576000:
305 case 36864000:
306 ad193x->sysclk = freq;
307 return 0;
308 }
309 return -EINVAL;
310}
311
312static int ad193x_hw_params(struct snd_pcm_substream *substream,
313 struct snd_pcm_hw_params *params,
314 struct snd_soc_dai *dai)
315{
316 int word_len = 0, master_rate = 0;
317 struct snd_soc_component *component = dai->component;
318 struct ad193x_priv *ad193x = snd_soc_component_get_drvdata(component);
319
320
321 switch (params_width(params)) {
322 case 16:
323 word_len = 3;
324 break;
325 case 20:
326 word_len = 1;
327 break;
328 case 24:
329 case 32:
330 word_len = 0;
331 break;
332 }
333
334 switch (ad193x->sysclk) {
335 case 12288000:
336 master_rate = AD193X_PLL_INPUT_256;
337 break;
338 case 18432000:
339 master_rate = AD193X_PLL_INPUT_384;
340 break;
341 case 24576000:
342 master_rate = AD193X_PLL_INPUT_512;
343 break;
344 case 36864000:
345 master_rate = AD193X_PLL_INPUT_768;
346 break;
347 }
348
349 regmap_update_bits(ad193x->regmap, AD193X_PLL_CLK_CTRL0,
350 AD193X_PLL_INPUT_MASK, master_rate);
351
352 regmap_update_bits(ad193x->regmap, AD193X_DAC_CTRL2,
353 AD193X_DAC_WORD_LEN_MASK,
354 word_len << AD193X_DAC_WORD_LEN_SHFT);
355
356 if (ad193x_has_adc(ad193x))
357 regmap_update_bits(ad193x->regmap, AD193X_ADC_CTRL1,
358 AD193X_ADC_WORD_LEN_MASK, word_len);
359
360 return 0;
361}
362
363static int ad193x_startup(struct snd_pcm_substream *substream,
364 struct snd_soc_dai *dai)
365{
366 return snd_pcm_hw_constraint_list(substream->runtime, 0,
367 SNDRV_PCM_HW_PARAM_SAMPLE_BITS,
368 &constr);
369}
370
371static const struct snd_soc_dai_ops ad193x_dai_ops = {
372 .startup = ad193x_startup,
373 .hw_params = ad193x_hw_params,
374 .digital_mute = ad193x_mute,
375 .set_tdm_slot = ad193x_set_tdm_slot,
376 .set_sysclk = ad193x_set_dai_sysclk,
377 .set_fmt = ad193x_set_dai_fmt,
378};
379
380
381static struct snd_soc_dai_driver ad193x_dai = {
382 .name = "ad193x-hifi",
383 .playback = {
384 .stream_name = "Playback",
385 .channels_min = 2,
386 .channels_max = 8,
387 .rates = SNDRV_PCM_RATE_48000,
388 .formats = SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S16_LE |
389 SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S24_LE,
390 },
391 .capture = {
392 .stream_name = "Capture",
393 .channels_min = 2,
394 .channels_max = 4,
395 .rates = SNDRV_PCM_RATE_48000,
396 .formats = SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S16_LE |
397 SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S24_LE,
398 },
399 .ops = &ad193x_dai_ops,
400};
401
402
403static struct snd_soc_dai_driver ad193x_no_adc_dai = {
404 .name = "ad193x-hifi",
405 .playback = {
406 .stream_name = "Playback",
407 .channels_min = 2,
408 .channels_max = 8,
409 .rates = SNDRV_PCM_RATE_48000,
410 .formats = SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S16_LE |
411 SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S24_LE,
412 },
413 .ops = &ad193x_dai_ops,
414};
415
416struct ad193x_reg_default {
417 unsigned int reg;
418 unsigned int val;
419};
420
421
422static void ad193x_reg_default_init(struct ad193x_priv *ad193x)
423{
424 const struct ad193x_reg_default reg_init[] = {
425 { 0, 0x99 },
426 { 1, 0x04 },
427 { 2, 0x40 },
428 { 3, 0x00 },
429 { 4, 0x1A },
430 { 5, 0x00 },
431 { 6, 0x00 },
432 { 7, 0x00 },
433 { 8, 0x00 },
434 { 9, 0x00 },
435 { 10, 0x00 },
436 { 11, 0x00 },
437 { 12, 0x00 },
438 { 13, 0x00 },
439 };
440 const struct ad193x_reg_default reg_adc_init[] = {
441 { 14, 0x03 },
442 { 15, 0x43 },
443 { 16, 0x00 },
444 };
445 int i;
446
447 for (i = 0; i < ARRAY_SIZE(reg_init); i++)
448 regmap_write(ad193x->regmap, reg_init[i].reg, reg_init[i].val);
449
450 if (ad193x_has_adc(ad193x)) {
451 for (i = 0; i < ARRAY_SIZE(reg_adc_init); i++) {
452 regmap_write(ad193x->regmap, reg_adc_init[i].reg,
453 reg_adc_init[i].val);
454 }
455 }
456}
457
458static int ad193x_component_probe(struct snd_soc_component *component)
459{
460 struct ad193x_priv *ad193x = snd_soc_component_get_drvdata(component);
461 struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component);
462 int num, ret;
463
464
465 ad193x_reg_default_init(ad193x);
466
467
468 if (ad193x_has_adc(ad193x)) {
469
470 num = ARRAY_SIZE(ad193x_adc_snd_controls);
471 ret = snd_soc_add_component_controls(component,
472 ad193x_adc_snd_controls,
473 num);
474 if (ret)
475 return ret;
476
477
478 num = ARRAY_SIZE(ad193x_adc_widgets);
479 ret = snd_soc_dapm_new_controls(dapm,
480 ad193x_adc_widgets,
481 num);
482 if (ret)
483 return ret;
484
485
486 num = ARRAY_SIZE(ad193x_adc_audio_paths);
487 ret = snd_soc_dapm_add_routes(dapm,
488 ad193x_adc_audio_paths,
489 num);
490 if (ret)
491 return ret;
492 }
493
494 return 0;
495}
496
497static const struct snd_soc_component_driver soc_component_dev_ad193x = {
498 .probe = ad193x_component_probe,
499 .controls = ad193x_snd_controls,
500 .num_controls = ARRAY_SIZE(ad193x_snd_controls),
501 .dapm_widgets = ad193x_dapm_widgets,
502 .num_dapm_widgets = ARRAY_SIZE(ad193x_dapm_widgets),
503 .dapm_routes = audio_paths,
504 .num_dapm_routes = ARRAY_SIZE(audio_paths),
505 .idle_bias_on = 1,
506 .use_pmdown_time = 1,
507 .endianness = 1,
508 .non_legacy_dai_naming = 1,
509};
510
511const struct regmap_config ad193x_regmap_config = {
512 .max_register = AD193X_NUM_REGS - 1,
513};
514EXPORT_SYMBOL_GPL(ad193x_regmap_config);
515
516int ad193x_probe(struct device *dev, struct regmap *regmap,
517 enum ad193x_type type)
518{
519 struct ad193x_priv *ad193x;
520
521 if (IS_ERR(regmap))
522 return PTR_ERR(regmap);
523
524 ad193x = devm_kzalloc(dev, sizeof(*ad193x), GFP_KERNEL);
525 if (ad193x == NULL)
526 return -ENOMEM;
527
528 ad193x->regmap = regmap;
529 ad193x->type = type;
530
531 dev_set_drvdata(dev, ad193x);
532
533 if (ad193x_has_adc(ad193x))
534 return devm_snd_soc_register_component(dev, &soc_component_dev_ad193x,
535 &ad193x_dai, 1);
536 return devm_snd_soc_register_component(dev, &soc_component_dev_ad193x,
537 &ad193x_no_adc_dai, 1);
538}
539EXPORT_SYMBOL_GPL(ad193x_probe);
540
541MODULE_DESCRIPTION("ASoC ad193x driver");
542MODULE_AUTHOR("Barry Song <21cnbao@gmail.com>");
543MODULE_LICENSE("GPL");
544
