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9#include <linux/init.h>
10#include <linux/module.h>
11#include <linux/kernel.h>
12#include <linux/device.h>
13#include <linux/i2c.h>
14#include <linux/spi/spi.h>
15#include <linux/slab.h>
16#include <sound/core.h>
17#include <sound/pcm.h>
18#include <sound/pcm_params.h>
19#include <sound/initval.h>
20#include <sound/soc.h>
21#include <sound/tlv.h>
22#include "ad193x.h"
23
24
25struct ad193x_priv {
26 enum snd_soc_control_type bus_type;
27 void *control_data;
28 int sysclk;
29};
30
31
32static const u8 ad193x_reg[AD193X_NUM_REGS] = {
33 0, 0, 0, 0, 0, 0, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0, 0, 0,
34};
35
36
37
38
39static const char *ad193x_deemp[] = {"None", "48kHz", "44.1kHz", "32kHz"};
40
41static const struct soc_enum ad193x_deemp_enum =
42 SOC_ENUM_SINGLE(AD193X_DAC_CTRL2, 1, 4, ad193x_deemp);
43
44static const struct snd_kcontrol_new ad193x_snd_controls[] = {
45
46 SOC_DOUBLE_R("DAC1 Volume", AD193X_DAC_L1_VOL,
47 AD193X_DAC_R1_VOL, 0, 0xFF, 1),
48 SOC_DOUBLE_R("DAC2 Volume", AD193X_DAC_L2_VOL,
49 AD193X_DAC_R2_VOL, 0, 0xFF, 1),
50 SOC_DOUBLE_R("DAC3 Volume", AD193X_DAC_L3_VOL,
51 AD193X_DAC_R3_VOL, 0, 0xFF, 1),
52 SOC_DOUBLE_R("DAC4 Volume", AD193X_DAC_L4_VOL,
53 AD193X_DAC_R4_VOL, 0, 0xFF, 1),
54
55
56 SOC_DOUBLE("ADC1 Switch", AD193X_ADC_CTRL0, AD193X_ADCL1_MUTE,
57 AD193X_ADCR1_MUTE, 1, 1),
58 SOC_DOUBLE("ADC2 Switch", AD193X_ADC_CTRL0, AD193X_ADCL2_MUTE,
59 AD193X_ADCR2_MUTE, 1, 1),
60
61
62 SOC_DOUBLE("DAC1 Switch", AD193X_DAC_CHNL_MUTE, AD193X_DACL1_MUTE,
63 AD193X_DACR1_MUTE, 1, 1),
64 SOC_DOUBLE("DAC2 Switch", AD193X_DAC_CHNL_MUTE, AD193X_DACL2_MUTE,
65 AD193X_DACR2_MUTE, 1, 1),
66 SOC_DOUBLE("DAC3 Switch", AD193X_DAC_CHNL_MUTE, AD193X_DACL3_MUTE,
67 AD193X_DACR3_MUTE, 1, 1),
68 SOC_DOUBLE("DAC4 Switch", AD193X_DAC_CHNL_MUTE, AD193X_DACL4_MUTE,
69 AD193X_DACR4_MUTE, 1, 1),
70
71
72 SOC_SINGLE("ADC High Pass Filter Switch", AD193X_ADC_CTRL0,
73 AD193X_ADC_HIGHPASS_FILTER, 1, 0),
74
75
76 SOC_ENUM("Playback Deemphasis", ad193x_deemp_enum),
77};
78
79static const struct snd_soc_dapm_widget ad193x_dapm_widgets[] = {
80 SND_SOC_DAPM_DAC("DAC", "Playback", AD193X_DAC_CTRL0, 0, 1),
81 SND_SOC_DAPM_ADC("ADC", "Capture", SND_SOC_NOPM, 0, 0),
82 SND_SOC_DAPM_SUPPLY("PLL_PWR", AD193X_PLL_CLK_CTRL0, 0, 1, NULL, 0),
83 SND_SOC_DAPM_SUPPLY("ADC_PWR", AD193X_ADC_CTRL0, 0, 1, NULL, 0),
84 SND_SOC_DAPM_OUTPUT("DAC1OUT"),
85 SND_SOC_DAPM_OUTPUT("DAC2OUT"),
86 SND_SOC_DAPM_OUTPUT("DAC3OUT"),
87 SND_SOC_DAPM_OUTPUT("DAC4OUT"),
88 SND_SOC_DAPM_INPUT("ADC1IN"),
89 SND_SOC_DAPM_INPUT("ADC2IN"),
90};
91
92static const struct snd_soc_dapm_route audio_paths[] = {
93 { "DAC", NULL, "PLL_PWR" },
94 { "ADC", NULL, "PLL_PWR" },
95 { "DAC", NULL, "ADC_PWR" },
96 { "ADC", NULL, "ADC_PWR" },
97 { "DAC1OUT", "DAC1 Switch", "DAC" },
98 { "DAC2OUT", "DAC2 Switch", "DAC" },
99 { "DAC3OUT", "DAC3 Switch", "DAC" },
100 { "DAC4OUT", "DAC4 Switch", "DAC" },
101 { "ADC", "ADC1 Switch", "ADC1IN" },
102 { "ADC", "ADC2 Switch", "ADC2IN" },
103};
104
105
106
107
108
109static int ad193x_mute(struct snd_soc_dai *dai, int mute)
110{
111 struct snd_soc_codec *codec = dai->codec;
112 int reg;
113
114 reg = snd_soc_read(codec, AD193X_DAC_CTRL2);
115 reg = (mute > 0) ? reg | AD193X_DAC_MASTER_MUTE : reg &
116 (~AD193X_DAC_MASTER_MUTE);
117 snd_soc_write(codec, AD193X_DAC_CTRL2, reg);
118
119 return 0;
120}
121
122static int ad193x_set_tdm_slot(struct snd_soc_dai *dai, unsigned int tx_mask,
123 unsigned int rx_mask, int slots, int width)
124{
125 struct snd_soc_codec *codec = dai->codec;
126 int dac_reg = snd_soc_read(codec, AD193X_DAC_CTRL1);
127 int adc_reg = snd_soc_read(codec, AD193X_ADC_CTRL2);
128
129 dac_reg &= ~AD193X_DAC_CHAN_MASK;
130 adc_reg &= ~AD193X_ADC_CHAN_MASK;
131
132 switch (slots) {
133 case 2:
134 dac_reg |= AD193X_DAC_2_CHANNELS << AD193X_DAC_CHAN_SHFT;
135 adc_reg |= AD193X_ADC_2_CHANNELS << AD193X_ADC_CHAN_SHFT;
136 break;
137 case 4:
138 dac_reg |= AD193X_DAC_4_CHANNELS << AD193X_DAC_CHAN_SHFT;
139 adc_reg |= AD193X_ADC_4_CHANNELS << AD193X_ADC_CHAN_SHFT;
140 break;
141 case 8:
142 dac_reg |= AD193X_DAC_8_CHANNELS << AD193X_DAC_CHAN_SHFT;
143 adc_reg |= AD193X_ADC_8_CHANNELS << AD193X_ADC_CHAN_SHFT;
144 break;
145 case 16:
146 dac_reg |= AD193X_DAC_16_CHANNELS << AD193X_DAC_CHAN_SHFT;
147 adc_reg |= AD193X_ADC_16_CHANNELS << AD193X_ADC_CHAN_SHFT;
148 break;
149 default:
150 return -EINVAL;
151 }
152
153 snd_soc_write(codec, AD193X_DAC_CTRL1, dac_reg);
154 snd_soc_write(codec, AD193X_ADC_CTRL2, adc_reg);
155
156 return 0;
157}
158
159static int ad193x_set_dai_fmt(struct snd_soc_dai *codec_dai,
160 unsigned int fmt)
161{
162 struct snd_soc_codec *codec = codec_dai->codec;
163 int adc_reg1, adc_reg2, dac_reg;
164
165 adc_reg1 = snd_soc_read(codec, AD193X_ADC_CTRL1);
166 adc_reg2 = snd_soc_read(codec, AD193X_ADC_CTRL2);
167 dac_reg = snd_soc_read(codec, AD193X_DAC_CTRL1);
168
169
170
171
172 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
173 case SND_SOC_DAIFMT_I2S:
174 adc_reg1 &= ~AD193X_ADC_SERFMT_MASK;
175 adc_reg1 |= AD193X_ADC_SERFMT_TDM;
176 break;
177 case SND_SOC_DAIFMT_DSP_A:
178 adc_reg1 &= ~AD193X_ADC_SERFMT_MASK;
179 adc_reg1 |= AD193X_ADC_SERFMT_AUX;
180 break;
181 default:
182 return -EINVAL;
183 }
184
185 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
186 case SND_SOC_DAIFMT_NB_NF:
187 adc_reg2 &= ~AD193X_ADC_LEFT_HIGH;
188 adc_reg2 &= ~AD193X_ADC_BCLK_INV;
189 dac_reg &= ~AD193X_DAC_LEFT_HIGH;
190 dac_reg &= ~AD193X_DAC_BCLK_INV;
191 break;
192 case SND_SOC_DAIFMT_NB_IF:
193 adc_reg2 |= AD193X_ADC_LEFT_HIGH;
194 adc_reg2 &= ~AD193X_ADC_BCLK_INV;
195 dac_reg |= AD193X_DAC_LEFT_HIGH;
196 dac_reg &= ~AD193X_DAC_BCLK_INV;
197 break;
198 case SND_SOC_DAIFMT_IB_NF:
199 adc_reg2 &= ~AD193X_ADC_LEFT_HIGH;
200 adc_reg2 |= AD193X_ADC_BCLK_INV;
201 dac_reg &= ~AD193X_DAC_LEFT_HIGH;
202 dac_reg |= AD193X_DAC_BCLK_INV;
203 break;
204
205 case SND_SOC_DAIFMT_IB_IF:
206 adc_reg2 |= AD193X_ADC_LEFT_HIGH;
207 adc_reg2 |= AD193X_ADC_BCLK_INV;
208 dac_reg |= AD193X_DAC_LEFT_HIGH;
209 dac_reg |= AD193X_DAC_BCLK_INV;
210 break;
211 default:
212 return -EINVAL;
213 }
214
215 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
216 case SND_SOC_DAIFMT_CBM_CFM:
217 adc_reg2 |= AD193X_ADC_LCR_MASTER;
218 adc_reg2 |= AD193X_ADC_BCLK_MASTER;
219 dac_reg |= AD193X_DAC_LCR_MASTER;
220 dac_reg |= AD193X_DAC_BCLK_MASTER;
221 break;
222 case SND_SOC_DAIFMT_CBS_CFM:
223 adc_reg2 |= AD193X_ADC_LCR_MASTER;
224 adc_reg2 &= ~AD193X_ADC_BCLK_MASTER;
225 dac_reg |= AD193X_DAC_LCR_MASTER;
226 dac_reg &= ~AD193X_DAC_BCLK_MASTER;
227 break;
228 case SND_SOC_DAIFMT_CBM_CFS:
229 adc_reg2 &= ~AD193X_ADC_LCR_MASTER;
230 adc_reg2 |= AD193X_ADC_BCLK_MASTER;
231 dac_reg &= ~AD193X_DAC_LCR_MASTER;
232 dac_reg |= AD193X_DAC_BCLK_MASTER;
233 break;
234 case SND_SOC_DAIFMT_CBS_CFS:
235 adc_reg2 &= ~AD193X_ADC_LCR_MASTER;
236 adc_reg2 &= ~AD193X_ADC_BCLK_MASTER;
237 dac_reg &= ~AD193X_DAC_LCR_MASTER;
238 dac_reg &= ~AD193X_DAC_BCLK_MASTER;
239 break;
240 default:
241 return -EINVAL;
242 }
243
244 snd_soc_write(codec, AD193X_ADC_CTRL1, adc_reg1);
245 snd_soc_write(codec, AD193X_ADC_CTRL2, adc_reg2);
246 snd_soc_write(codec, AD193X_DAC_CTRL1, dac_reg);
247
248 return 0;
249}
250
251static int ad193x_set_dai_sysclk(struct snd_soc_dai *codec_dai,
252 int clk_id, unsigned int freq, int dir)
253{
254 struct snd_soc_codec *codec = codec_dai->codec;
255 struct ad193x_priv *ad193x = snd_soc_codec_get_drvdata(codec);
256 switch (freq) {
257 case 12288000:
258 case 18432000:
259 case 24576000:
260 case 36864000:
261 ad193x->sysclk = freq;
262 return 0;
263 }
264 return -EINVAL;
265}
266
267static int ad193x_hw_params(struct snd_pcm_substream *substream,
268 struct snd_pcm_hw_params *params,
269 struct snd_soc_dai *dai)
270{
271 int word_len = 0, reg = 0, master_rate = 0;
272
273 struct snd_soc_pcm_runtime *rtd = substream->private_data;
274 struct snd_soc_codec *codec = rtd->codec;
275 struct ad193x_priv *ad193x = snd_soc_codec_get_drvdata(codec);
276
277
278 switch (params_format(params)) {
279 case SNDRV_PCM_FORMAT_S16_LE:
280 word_len = 3;
281 break;
282 case SNDRV_PCM_FORMAT_S20_3LE:
283 word_len = 1;
284 break;
285 case SNDRV_PCM_FORMAT_S24_LE:
286 case SNDRV_PCM_FORMAT_S32_LE:
287 word_len = 0;
288 break;
289 }
290
291 switch (ad193x->sysclk) {
292 case 12288000:
293 master_rate = AD193X_PLL_INPUT_256;
294 break;
295 case 18432000:
296 master_rate = AD193X_PLL_INPUT_384;
297 break;
298 case 24576000:
299 master_rate = AD193X_PLL_INPUT_512;
300 break;
301 case 36864000:
302 master_rate = AD193X_PLL_INPUT_768;
303 break;
304 }
305
306 reg = snd_soc_read(codec, AD193X_PLL_CLK_CTRL0);
307 reg = (reg & AD193X_PLL_INPUT_MASK) | master_rate;
308 snd_soc_write(codec, AD193X_PLL_CLK_CTRL0, reg);
309
310 reg = snd_soc_read(codec, AD193X_DAC_CTRL2);
311 reg = (reg & (~AD193X_DAC_WORD_LEN_MASK)) | word_len;
312 snd_soc_write(codec, AD193X_DAC_CTRL2, reg);
313
314 reg = snd_soc_read(codec, AD193X_ADC_CTRL1);
315 reg = (reg & (~AD193X_ADC_WORD_LEN_MASK)) | word_len;
316 snd_soc_write(codec, AD193X_ADC_CTRL1, reg);
317
318 return 0;
319}
320
321static struct snd_soc_dai_ops ad193x_dai_ops = {
322 .hw_params = ad193x_hw_params,
323 .digital_mute = ad193x_mute,
324 .set_tdm_slot = ad193x_set_tdm_slot,
325 .set_sysclk = ad193x_set_dai_sysclk,
326 .set_fmt = ad193x_set_dai_fmt,
327};
328
329
330static struct snd_soc_dai_driver ad193x_dai = {
331 .name = "ad193x-hifi",
332 .playback = {
333 .stream_name = "Playback",
334 .channels_min = 2,
335 .channels_max = 8,
336 .rates = SNDRV_PCM_RATE_48000,
337 .formats = SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S16_LE |
338 SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S24_LE,
339 },
340 .capture = {
341 .stream_name = "Capture",
342 .channels_min = 2,
343 .channels_max = 4,
344 .rates = SNDRV_PCM_RATE_48000,
345 .formats = SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S16_LE |
346 SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S24_LE,
347 },
348 .ops = &ad193x_dai_ops,
349};
350
351static int ad193x_probe(struct snd_soc_codec *codec)
352{
353 struct ad193x_priv *ad193x = snd_soc_codec_get_drvdata(codec);
354 struct snd_soc_dapm_context *dapm = &codec->dapm;
355 int ret;
356
357 codec->control_data = ad193x->control_data;
358 if (ad193x->bus_type == SND_SOC_I2C)
359 ret = snd_soc_codec_set_cache_io(codec, 8, 8, ad193x->bus_type);
360 else
361 ret = snd_soc_codec_set_cache_io(codec, 16, 8, ad193x->bus_type);
362 if (ret < 0) {
363 dev_err(codec->dev, "failed to set cache I/O: %d\n",
364 ret);
365 return ret;
366 }
367
368
369
370
371 snd_soc_write(codec, AD193X_DAC_CHNL_MUTE, 0x0);
372
373 snd_soc_write(codec, AD193X_DAC_CTRL2, 0x1A);
374
375 snd_soc_write(codec, AD193X_DAC_CTRL0, 0x41);
376
377 snd_soc_write(codec, AD193X_ADC_CTRL0, 0x3);
378
379 snd_soc_write(codec, AD193X_ADC_CTRL1, 0x43);
380
381 snd_soc_write(codec, AD193X_PLL_CLK_CTRL0, 0x99);
382 snd_soc_write(codec, AD193X_PLL_CLK_CTRL1, 0x04);
383
384 snd_soc_add_controls(codec, ad193x_snd_controls,
385 ARRAY_SIZE(ad193x_snd_controls));
386 snd_soc_dapm_new_controls(dapm, ad193x_dapm_widgets,
387 ARRAY_SIZE(ad193x_dapm_widgets));
388 snd_soc_dapm_add_routes(dapm, audio_paths, ARRAY_SIZE(audio_paths));
389
390 return ret;
391}
392
393static struct snd_soc_codec_driver soc_codec_dev_ad193x = {
394 .probe = ad193x_probe,
395 .reg_cache_default = ad193x_reg,
396 .reg_cache_size = AD193X_NUM_REGS,
397 .reg_word_size = sizeof(u16),
398};
399
400#if defined(CONFIG_SPI_MASTER)
401static int __devinit ad193x_spi_probe(struct spi_device *spi)
402{
403 struct ad193x_priv *ad193x;
404 int ret;
405
406 ad193x = kzalloc(sizeof(struct ad193x_priv), GFP_KERNEL);
407 if (ad193x == NULL)
408 return -ENOMEM;
409
410 spi_set_drvdata(spi, ad193x);
411 ad193x->control_data = spi;
412 ad193x->bus_type = SND_SOC_SPI;
413
414 ret = snd_soc_register_codec(&spi->dev,
415 &soc_codec_dev_ad193x, &ad193x_dai, 1);
416 if (ret < 0)
417 kfree(ad193x);
418 return ret;
419}
420
421static int __devexit ad193x_spi_remove(struct spi_device *spi)
422{
423 snd_soc_unregister_codec(&spi->dev);
424 kfree(spi_get_drvdata(spi));
425 return 0;
426}
427
428static struct spi_driver ad193x_spi_driver = {
429 .driver = {
430 .name = "ad193x-codec",
431 .owner = THIS_MODULE,
432 },
433 .probe = ad193x_spi_probe,
434 .remove = __devexit_p(ad193x_spi_remove),
435};
436#endif
437
438#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
439static const struct i2c_device_id ad193x_id[] = {
440 { "ad1936", 0 },
441 { "ad1937", 0 },
442 { }
443};
444MODULE_DEVICE_TABLE(i2c, ad193x_id);
445
446static int __devinit ad193x_i2c_probe(struct i2c_client *client,
447 const struct i2c_device_id *id)
448{
449 struct ad193x_priv *ad193x;
450 int ret;
451
452 ad193x = kzalloc(sizeof(struct ad193x_priv), GFP_KERNEL);
453 if (ad193x == NULL)
454 return -ENOMEM;
455
456 i2c_set_clientdata(client, ad193x);
457 ad193x->control_data = client;
458 ad193x->bus_type = SND_SOC_I2C;
459
460 ret = snd_soc_register_codec(&client->dev,
461 &soc_codec_dev_ad193x, &ad193x_dai, 1);
462 if (ret < 0)
463 kfree(ad193x);
464 return ret;
465}
466
467static int __devexit ad193x_i2c_remove(struct i2c_client *client)
468{
469 snd_soc_unregister_codec(&client->dev);
470 kfree(i2c_get_clientdata(client));
471 return 0;
472}
473
474static struct i2c_driver ad193x_i2c_driver = {
475 .driver = {
476 .name = "ad193x-codec",
477 },
478 .probe = ad193x_i2c_probe,
479 .remove = __devexit_p(ad193x_i2c_remove),
480 .id_table = ad193x_id,
481};
482#endif
483
484static int __init ad193x_modinit(void)
485{
486 int ret;
487
488#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
489 ret = i2c_add_driver(&ad193x_i2c_driver);
490 if (ret != 0) {
491 printk(KERN_ERR "Failed to register AD193X I2C driver: %d\n",
492 ret);
493 }
494#endif
495
496#if defined(CONFIG_SPI_MASTER)
497 ret = spi_register_driver(&ad193x_spi_driver);
498 if (ret != 0) {
499 printk(KERN_ERR "Failed to register AD193X SPI driver: %d\n",
500 ret);
501 }
502#endif
503 return ret;
504}
505module_init(ad193x_modinit);
506
507static void __exit ad193x_modexit(void)
508{
509#if defined(CONFIG_SPI_MASTER)
510 spi_unregister_driver(&ad193x_spi_driver);
511#endif
512
513#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
514 i2c_del_driver(&ad193x_i2c_driver);
515#endif
516}
517module_exit(ad193x_modexit);
518
519MODULE_DESCRIPTION("ASoC ad193x driver");
520MODULE_AUTHOR("Barry Song <21cnbao@gmail.com>");
521MODULE_LICENSE("GPL");
522
