2 * AD193X Audio Codec driver supporting AD1936/7/8/9
4 * Copyright 2010 Analog Devices Inc.
6 * Licensed under the GPL-2 or later.
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 <sound/core.h>
16 #include <sound/pcm.h>
17 #include <sound/pcm_params.h>
18 #include <sound/initval.h>
19 #include <sound/soc.h>
20 #include <sound/tlv.h>
21 #include <sound/soc-dapm.h>
24 /* codec private data */
26 struct snd_soc_codec codec;
27 u8 reg_cache[AD193X_NUM_REGS];
30 /* ad193x register cache & default register settings */
31 static const u8 ad193x_reg[AD193X_NUM_REGS] = {
32 0, 0, 0, 0, 0, 0, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0, 0, 0,
35 static struct snd_soc_codec *ad193x_codec;
36 struct snd_soc_codec_device soc_codec_dev_ad193x;
37 static int ad193x_register(struct ad193x_priv *ad193x, int bus_type);
38 static void ad193x_unregister(struct ad193x_priv *ad193x);
41 * AD193X volume/mute/de-emphasis etc. controls
43 static const char *ad193x_deemp[] = {"None", "48kHz", "44.1kHz", "32kHz"};
45 static const struct soc_enum ad193x_deemp_enum =
46 SOC_ENUM_SINGLE(AD193X_DAC_CTRL2, 1, 4, ad193x_deemp);
48 static const struct snd_kcontrol_new ad193x_snd_controls[] = {
49 /* DAC volume control */
50 SOC_DOUBLE_R("DAC1 Volume", AD193X_DAC_L1_VOL,
51 AD193X_DAC_R1_VOL, 0, 0xFF, 1),
52 SOC_DOUBLE_R("DAC2 Volume", AD193X_DAC_L2_VOL,
53 AD193X_DAC_R2_VOL, 0, 0xFF, 1),
54 SOC_DOUBLE_R("DAC3 Volume", AD193X_DAC_L3_VOL,
55 AD193X_DAC_R3_VOL, 0, 0xFF, 1),
56 SOC_DOUBLE_R("DAC4 Volume", AD193X_DAC_L4_VOL,
57 AD193X_DAC_R4_VOL, 0, 0xFF, 1),
59 /* ADC switch control */
60 SOC_DOUBLE("ADC1 Switch", AD193X_ADC_CTRL0, AD193X_ADCL1_MUTE,
61 AD193X_ADCR1_MUTE, 1, 1),
62 SOC_DOUBLE("ADC2 Switch", AD193X_ADC_CTRL0, AD193X_ADCL2_MUTE,
63 AD193X_ADCR2_MUTE, 1, 1),
65 /* DAC switch control */
66 SOC_DOUBLE("DAC1 Switch", AD193X_DAC_CHNL_MUTE, AD193X_DACL1_MUTE,
67 AD193X_DACR1_MUTE, 1, 1),
68 SOC_DOUBLE("DAC2 Switch", AD193X_DAC_CHNL_MUTE, AD193X_DACL2_MUTE,
69 AD193X_DACR2_MUTE, 1, 1),
70 SOC_DOUBLE("DAC3 Switch", AD193X_DAC_CHNL_MUTE, AD193X_DACL3_MUTE,
71 AD193X_DACR3_MUTE, 1, 1),
72 SOC_DOUBLE("DAC4 Switch", AD193X_DAC_CHNL_MUTE, AD193X_DACL4_MUTE,
73 AD193X_DACR4_MUTE, 1, 1),
75 /* ADC high-pass filter */
76 SOC_SINGLE("ADC High Pass Filter Switch", AD193X_ADC_CTRL0,
77 AD193X_ADC_HIGHPASS_FILTER, 1, 0),
80 SOC_ENUM("Playback Deemphasis", ad193x_deemp_enum),
83 static const struct snd_soc_dapm_widget ad193x_dapm_widgets[] = {
84 SND_SOC_DAPM_DAC("DAC", "Playback", AD193X_DAC_CTRL0, 0, 1),
85 SND_SOC_DAPM_ADC("ADC", "Capture", SND_SOC_NOPM, 0, 0),
86 SND_SOC_DAPM_SUPPLY("PLL_PWR", AD193X_PLL_CLK_CTRL0, 0, 1, NULL, 0),
87 SND_SOC_DAPM_SUPPLY("ADC_PWR", AD193X_ADC_CTRL0, 0, 1, NULL, 0),
88 SND_SOC_DAPM_OUTPUT("DAC1OUT"),
89 SND_SOC_DAPM_OUTPUT("DAC2OUT"),
90 SND_SOC_DAPM_OUTPUT("DAC3OUT"),
91 SND_SOC_DAPM_OUTPUT("DAC4OUT"),
92 SND_SOC_DAPM_INPUT("ADC1IN"),
93 SND_SOC_DAPM_INPUT("ADC2IN"),
96 static const struct snd_soc_dapm_route audio_paths[] = {
97 { "DAC", NULL, "PLL_PWR" },
98 { "ADC", NULL, "PLL_PWR" },
99 { "DAC", NULL, "ADC_PWR" },
100 { "ADC", NULL, "ADC_PWR" },
101 { "DAC1OUT", "DAC1 Switch", "DAC" },
102 { "DAC2OUT", "DAC2 Switch", "DAC" },
103 { "DAC3OUT", "DAC3 Switch", "DAC" },
104 { "DAC4OUT", "DAC4 Switch", "DAC" },
105 { "ADC", "ADC1 Switch", "ADC1IN" },
106 { "ADC", "ADC2 Switch", "ADC2IN" },
113 static int ad193x_mute(struct snd_soc_dai *dai, int mute)
115 struct snd_soc_codec *codec = dai->codec;
118 reg = snd_soc_read(codec, AD193X_DAC_CTRL2);
119 reg = (mute > 0) ? reg | AD193X_DAC_MASTER_MUTE : reg &
120 (~AD193X_DAC_MASTER_MUTE);
121 snd_soc_write(codec, AD193X_DAC_CTRL2, reg);
126 static int ad193x_set_tdm_slot(struct snd_soc_dai *dai, unsigned int tx_mask,
127 unsigned int rx_mask, int slots, int width)
129 struct snd_soc_codec *codec = dai->codec;
130 int dac_reg = snd_soc_read(codec, AD193X_DAC_CTRL1);
131 int adc_reg = snd_soc_read(codec, AD193X_ADC_CTRL2);
133 dac_reg &= ~AD193X_DAC_CHAN_MASK;
134 adc_reg &= ~AD193X_ADC_CHAN_MASK;
138 dac_reg |= AD193X_DAC_2_CHANNELS << AD193X_DAC_CHAN_SHFT;
139 adc_reg |= AD193X_ADC_2_CHANNELS << AD193X_ADC_CHAN_SHFT;
142 dac_reg |= AD193X_DAC_4_CHANNELS << AD193X_DAC_CHAN_SHFT;
143 adc_reg |= AD193X_ADC_4_CHANNELS << AD193X_ADC_CHAN_SHFT;
146 dac_reg |= AD193X_DAC_8_CHANNELS << AD193X_DAC_CHAN_SHFT;
147 adc_reg |= AD193X_ADC_8_CHANNELS << AD193X_ADC_CHAN_SHFT;
150 dac_reg |= AD193X_DAC_16_CHANNELS << AD193X_DAC_CHAN_SHFT;
151 adc_reg |= AD193X_ADC_16_CHANNELS << AD193X_ADC_CHAN_SHFT;
157 snd_soc_write(codec, AD193X_DAC_CTRL1, dac_reg);
158 snd_soc_write(codec, AD193X_ADC_CTRL2, adc_reg);
163 static int ad193x_set_dai_fmt(struct snd_soc_dai *codec_dai,
166 struct snd_soc_codec *codec = codec_dai->codec;
167 int adc_reg, dac_reg;
169 adc_reg = snd_soc_read(codec, AD193X_ADC_CTRL2);
170 dac_reg = snd_soc_read(codec, AD193X_DAC_CTRL1);
172 /* At present, the driver only support AUX ADC mode(SND_SOC_DAIFMT_I2S
173 * with TDM) and ADC&DAC TDM mode(SND_SOC_DAIFMT_DSP_A)
175 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
176 case SND_SOC_DAIFMT_I2S:
177 adc_reg &= ~AD193X_ADC_SERFMT_MASK;
178 adc_reg |= AD193X_ADC_SERFMT_TDM;
180 case SND_SOC_DAIFMT_DSP_A:
181 adc_reg &= ~AD193X_ADC_SERFMT_MASK;
182 adc_reg |= AD193X_ADC_SERFMT_AUX;
188 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
189 case SND_SOC_DAIFMT_NB_NF: /* normal bit clock + frame */
190 adc_reg &= ~AD193X_ADC_LEFT_HIGH;
191 adc_reg &= ~AD193X_ADC_BCLK_INV;
192 dac_reg &= ~AD193X_DAC_LEFT_HIGH;
193 dac_reg &= ~AD193X_DAC_BCLK_INV;
195 case SND_SOC_DAIFMT_NB_IF: /* normal bclk + invert frm */
196 adc_reg |= AD193X_ADC_LEFT_HIGH;
197 adc_reg &= ~AD193X_ADC_BCLK_INV;
198 dac_reg |= AD193X_DAC_LEFT_HIGH;
199 dac_reg &= ~AD193X_DAC_BCLK_INV;
201 case SND_SOC_DAIFMT_IB_NF: /* invert bclk + normal frm */
202 adc_reg &= ~AD193X_ADC_LEFT_HIGH;
203 adc_reg |= AD193X_ADC_BCLK_INV;
204 dac_reg &= ~AD193X_DAC_LEFT_HIGH;
205 dac_reg |= AD193X_DAC_BCLK_INV;
208 case SND_SOC_DAIFMT_IB_IF: /* invert bclk + frm */
209 adc_reg |= AD193X_ADC_LEFT_HIGH;
210 adc_reg |= AD193X_ADC_BCLK_INV;
211 dac_reg |= AD193X_DAC_LEFT_HIGH;
212 dac_reg |= AD193X_DAC_BCLK_INV;
218 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
219 case SND_SOC_DAIFMT_CBM_CFM: /* codec clk & frm master */
220 adc_reg |= AD193X_ADC_LCR_MASTER;
221 adc_reg |= AD193X_ADC_BCLK_MASTER;
222 dac_reg |= AD193X_DAC_LCR_MASTER;
223 dac_reg |= AD193X_DAC_BCLK_MASTER;
225 case SND_SOC_DAIFMT_CBS_CFM: /* codec clk slave & frm master */
226 adc_reg |= AD193X_ADC_LCR_MASTER;
227 adc_reg &= ~AD193X_ADC_BCLK_MASTER;
228 dac_reg |= AD193X_DAC_LCR_MASTER;
229 dac_reg &= ~AD193X_DAC_BCLK_MASTER;
231 case SND_SOC_DAIFMT_CBM_CFS: /* codec clk master & frame slave */
232 adc_reg &= ~AD193X_ADC_LCR_MASTER;
233 adc_reg |= AD193X_ADC_BCLK_MASTER;
234 dac_reg &= ~AD193X_DAC_LCR_MASTER;
235 dac_reg |= AD193X_DAC_BCLK_MASTER;
237 case SND_SOC_DAIFMT_CBS_CFS: /* codec clk & frm slave */
238 adc_reg &= ~AD193X_ADC_LCR_MASTER;
239 adc_reg &= ~AD193X_ADC_BCLK_MASTER;
240 dac_reg &= ~AD193X_DAC_LCR_MASTER;
241 dac_reg &= ~AD193X_DAC_BCLK_MASTER;
247 snd_soc_write(codec, AD193X_ADC_CTRL2, adc_reg);
248 snd_soc_write(codec, AD193X_DAC_CTRL1, dac_reg);
253 static int ad193x_hw_params(struct snd_pcm_substream *substream,
254 struct snd_pcm_hw_params *params,
255 struct snd_soc_dai *dai)
257 int word_len = 0, reg = 0;
259 struct snd_soc_pcm_runtime *rtd = substream->private_data;
260 struct snd_soc_device *socdev = rtd->socdev;
261 struct snd_soc_codec *codec = socdev->card->codec;
264 switch (params_format(params)) {
265 case SNDRV_PCM_FORMAT_S16_LE:
268 case SNDRV_PCM_FORMAT_S20_3LE:
271 case SNDRV_PCM_FORMAT_S24_LE:
272 case SNDRV_PCM_FORMAT_S32_LE:
277 reg = snd_soc_read(codec, AD193X_DAC_CTRL2);
278 reg = (reg & (~AD193X_DAC_WORD_LEN_MASK)) | word_len;
279 snd_soc_write(codec, AD193X_DAC_CTRL2, reg);
281 reg = snd_soc_read(codec, AD193X_ADC_CTRL1);
282 reg = (reg & (~AD193X_ADC_WORD_LEN_MASK)) | word_len;
283 snd_soc_write(codec, AD193X_ADC_CTRL1, reg);
288 static int ad193x_bus_probe(struct device *dev, void *ctrl_data, int bus_type)
290 struct snd_soc_codec *codec;
291 struct ad193x_priv *ad193x;
293 ad193x = kzalloc(sizeof(struct ad193x_priv), GFP_KERNEL);
297 codec = &ad193x->codec;
298 codec->control_data = ctrl_data;
301 dev_set_drvdata(dev, ad193x);
303 return ad193x_register(ad193x, bus_type);
306 static int ad193x_bus_remove(struct device *dev)
308 struct ad193x_priv *ad193x = dev_get_drvdata(dev);
310 ad193x_unregister(ad193x);
314 static struct snd_soc_dai_ops ad193x_dai_ops = {
315 .hw_params = ad193x_hw_params,
316 .digital_mute = ad193x_mute,
317 .set_tdm_slot = ad193x_set_tdm_slot,
318 .set_fmt = ad193x_set_dai_fmt,
321 /* codec DAI instance */
322 struct snd_soc_dai ad193x_dai = {
325 .stream_name = "Playback",
328 .rates = SNDRV_PCM_RATE_48000,
329 .formats = SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S16_LE |
330 SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S24_LE,
333 .stream_name = "Capture",
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,
340 .ops = &ad193x_dai_ops,
342 EXPORT_SYMBOL_GPL(ad193x_dai);
344 static int ad193x_register(struct ad193x_priv *ad193x, int bus_type)
347 struct snd_soc_codec *codec = &ad193x->codec;
350 dev_err(codec->dev, "Another ad193x is registered\n");
354 mutex_init(&codec->mutex);
355 codec->private_data = ad193x;
356 codec->reg_cache = ad193x->reg_cache;
357 codec->reg_cache_size = AD193X_NUM_REGS;
358 codec->name = "AD193X";
359 codec->owner = THIS_MODULE;
360 codec->dai = &ad193x_dai;
362 INIT_LIST_HEAD(&codec->dapm_widgets);
363 INIT_LIST_HEAD(&codec->dapm_paths);
365 ad193x_dai.dev = codec->dev;
366 ad193x_codec = codec;
368 memcpy(codec->reg_cache, ad193x_reg, AD193X_NUM_REGS);
370 if (bus_type == SND_SOC_I2C)
371 ret = snd_soc_codec_set_cache_io(codec, 8, 8, bus_type);
373 ret = snd_soc_codec_set_cache_io(codec, 16, 8, bus_type);
375 dev_err(codec->dev, "failed to set cache I/O: %d\n",
381 /* default setting for ad193x */
383 /* unmute dac channels */
384 snd_soc_write(codec, AD193X_DAC_CHNL_MUTE, 0x0);
385 /* de-emphasis: 48kHz, powedown dac */
386 snd_soc_write(codec, AD193X_DAC_CTRL2, 0x1A);
387 /* powerdown dac, dac in tdm mode */
388 snd_soc_write(codec, AD193X_DAC_CTRL0, 0x41);
389 /* high-pass filter enable */
390 snd_soc_write(codec, AD193X_ADC_CTRL0, 0x3);
391 /* sata delay=1, adc aux mode */
392 snd_soc_write(codec, AD193X_ADC_CTRL1, 0x43);
393 /* pll input: mclki/xi */
394 snd_soc_write(codec, AD193X_PLL_CLK_CTRL0, 0x99); /* mclk=24.576Mhz: 0x9D; mclk=12.288Mhz: 0x99 */
395 snd_soc_write(codec, AD193X_PLL_CLK_CTRL1, 0x04);
397 ret = snd_soc_register_codec(codec);
399 dev_err(codec->dev, "Failed to register codec: %d\n", ret);
404 ret = snd_soc_register_dai(&ad193x_dai);
406 dev_err(codec->dev, "Failed to register DAI: %d\n", ret);
407 snd_soc_unregister_codec(codec);
415 static void ad193x_unregister(struct ad193x_priv *ad193x)
417 snd_soc_unregister_dai(&ad193x_dai);
418 snd_soc_unregister_codec(&ad193x->codec);
423 static int ad193x_probe(struct platform_device *pdev)
425 struct snd_soc_device *socdev = platform_get_drvdata(pdev);
426 struct snd_soc_codec *codec;
429 if (ad193x_codec == NULL) {
430 dev_err(&pdev->dev, "Codec device not registered\n");
434 socdev->card->codec = ad193x_codec;
435 codec = ad193x_codec;
438 ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1);
440 dev_err(codec->dev, "failed to create pcms: %d\n", ret);
444 snd_soc_add_controls(codec, ad193x_snd_controls,
445 ARRAY_SIZE(ad193x_snd_controls));
446 snd_soc_dapm_new_controls(codec, ad193x_dapm_widgets,
447 ARRAY_SIZE(ad193x_dapm_widgets));
448 snd_soc_dapm_add_routes(codec, audio_paths, ARRAY_SIZE(audio_paths));
454 /* power down chip */
455 static int ad193x_remove(struct platform_device *pdev)
457 struct snd_soc_device *socdev = platform_get_drvdata(pdev);
459 snd_soc_free_pcms(socdev);
460 snd_soc_dapm_free(socdev);
465 struct snd_soc_codec_device soc_codec_dev_ad193x = {
466 .probe = ad193x_probe,
467 .remove = ad193x_remove,
469 EXPORT_SYMBOL_GPL(soc_codec_dev_ad193x);
471 #if defined(CONFIG_SPI_MASTER)
472 static int __devinit ad193x_spi_probe(struct spi_device *spi)
474 return ad193x_bus_probe(&spi->dev, spi, SND_SOC_SPI);
477 static int __devexit ad193x_spi_remove(struct spi_device *spi)
479 return ad193x_bus_remove(&spi->dev);
482 static struct spi_driver ad193x_spi_driver = {
485 .owner = THIS_MODULE,
487 .probe = ad193x_spi_probe,
488 .remove = __devexit_p(ad193x_spi_remove),
492 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
493 static const struct i2c_device_id ad193x_id[] = {
498 MODULE_DEVICE_TABLE(i2c, ad193x_id);
500 static int __devinit ad193x_i2c_probe(struct i2c_client *client,
501 const struct i2c_device_id *id)
503 return ad193x_bus_probe(&client->dev, client, SND_SOC_I2C);
506 static int __devexit ad193x_i2c_remove(struct i2c_client *client)
508 return ad193x_bus_remove(&client->dev);
511 static struct i2c_driver ad193x_i2c_driver = {
515 .probe = ad193x_i2c_probe,
516 .remove = __devexit_p(ad193x_i2c_remove),
517 .id_table = ad193x_id,
521 static int __init ad193x_modinit(void)
525 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
526 ret = i2c_add_driver(&ad193x_i2c_driver);
528 printk(KERN_ERR "Failed to register AD193X I2C driver: %d\n",
533 #if defined(CONFIG_SPI_MASTER)
534 ret = spi_register_driver(&ad193x_spi_driver);
536 printk(KERN_ERR "Failed to register AD193X SPI driver: %d\n",
542 module_init(ad193x_modinit);
544 static void __exit ad193x_modexit(void)
546 #if defined(CONFIG_SPI_MASTER)
547 spi_unregister_driver(&ad193x_spi_driver);
550 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
551 i2c_del_driver(&ad193x_i2c_driver);
554 module_exit(ad193x_modexit);
556 MODULE_DESCRIPTION("ASoC ad193x driver");
557 MODULE_AUTHOR("Barry Song <21cnbao@gmail.com>");
558 MODULE_LICENSE("GPL");