1 | // SPDX-License-Identifier: GPL-2.0-or-later |
2 | /* |
3 | * AD193X Audio Codec driver supporting AD1936/7/8/9 |
4 | * |
5 | * Copyright 2010 Analog Devices Inc. |
6 | */ |
7 | |
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 | /* codec private data */ |
23 | struct ad193x_priv { |
24 | struct regmap *regmap; |
25 | enum ad193x_type type; |
26 | int sysclk; |
27 | }; |
28 | |
29 | /* |
30 | * AD193X volume/mute/de-emphasis etc. controls |
31 | */ |
32 | static const char * const ad193x_deemp[] = {"None" , "48kHz" , "44.1kHz" , "32kHz" }; |
33 | |
34 | static SOC_ENUM_SINGLE_DECL(ad193x_deemp_enum, AD193X_DAC_CTRL2, 1, |
35 | ad193x_deemp); |
36 | |
37 | static const DECLARE_TLV_DB_MINMAX(adau193x_tlv, -9563, 0); |
38 | |
39 | static const unsigned int ad193x_sb[] = {32}; |
40 | |
41 | static struct snd_pcm_hw_constraint_list constr = { |
42 | .list = ad193x_sb, |
43 | .count = ARRAY_SIZE(ad193x_sb), |
44 | }; |
45 | |
46 | static const struct snd_kcontrol_new ad193x_snd_controls[] = { |
47 | /* DAC volume control */ |
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 | /* DAC switch control */ |
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 | /* DAC de-emphasis */ |
68 | SOC_ENUM("Playback Deemphasis" , ad193x_deemp_enum), |
69 | }; |
70 | |
71 | static const struct snd_kcontrol_new ad193x_adc_snd_controls[] = { |
72 | /* ADC switch control */ |
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 | /* ADC high-pass filter */ |
79 | SOC_SINGLE("ADC High Pass Filter Switch" , AD193X_ADC_CTRL0, |
80 | AD193X_ADC_HIGHPASS_FILTER, 1, 0), |
81 | }; |
82 | |
83 | static 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 | |
95 | static 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 | |
102 | static 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(dapm: source->dapm); |
106 | struct ad193x_priv *ad193x = snd_soc_component_get_drvdata(c: component); |
107 | |
108 | return !!ad193x->sysclk; |
109 | } |
110 | |
111 | static 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 | |
122 | static 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 | |
129 | static 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 | * DAI ops entries |
144 | */ |
145 | |
146 | static int ad193x_mute(struct snd_soc_dai *dai, int mute, int direction) |
147 | { |
148 | struct ad193x_priv *ad193x = snd_soc_component_get_drvdata(c: dai->component); |
149 | |
150 | if (mute) |
151 | regmap_update_bits(map: ad193x->regmap, AD193X_DAC_CTRL2, |
152 | AD193X_DAC_MASTER_MUTE, |
153 | AD193X_DAC_MASTER_MUTE); |
154 | else |
155 | regmap_update_bits(map: ad193x->regmap, AD193X_DAC_CTRL2, |
156 | AD193X_DAC_MASTER_MUTE, val: 0); |
157 | |
158 | return 0; |
159 | } |
160 | |
161 | static 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(c: 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(map: ad193x->regmap, AD193X_DAC_CTRL1, |
185 | AD193X_DAC_CHAN_MASK, val: channels << AD193X_DAC_CHAN_SHFT); |
186 | if (ad193x_has_adc(ad193x)) |
187 | regmap_update_bits(map: ad193x->regmap, AD193X_ADC_CTRL2, |
188 | AD193X_ADC_CHAN_MASK, |
189 | val: channels << AD193X_ADC_CHAN_SHFT); |
190 | |
191 | return 0; |
192 | } |
193 | |
194 | static 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(c: 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 | /* At present, the driver only support AUX ADC mode(SND_SOC_DAIFMT_I2S |
204 | * with TDM), ADC&DAC TDM mode(SND_SOC_DAIFMT_DSP_A) and DAC I2S mode |
205 | * (SND_SOC_DAIFMT_I2S) |
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: /* normal bit clock + frame */ |
223 | break; |
224 | case SND_SOC_DAIFMT_NB_IF: /* normal bclk + invert frm */ |
225 | adc_fmt |= AD193X_ADC_LEFT_HIGH; |
226 | dac_fmt |= AD193X_DAC_LEFT_HIGH; |
227 | break; |
228 | case SND_SOC_DAIFMT_IB_NF: /* invert bclk + normal frm */ |
229 | adc_fmt |= AD193X_ADC_BCLK_INV; |
230 | dac_fmt |= AD193X_DAC_BCLK_INV; |
231 | break; |
232 | case SND_SOC_DAIFMT_IB_IF: /* invert bclk + frm */ |
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 | /* For DSP_*, LRCLK's polarity must be inverted */ |
243 | if (fmt & SND_SOC_DAIFMT_DSP_A) |
244 | dac_fmt ^= AD193X_DAC_LEFT_HIGH; |
245 | |
246 | switch (fmt & SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK) { |
247 | case SND_SOC_DAIFMT_CBP_CFP: |
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_CBC_CFP: |
254 | adc_fmt |= AD193X_ADC_LCR_MASTER; |
255 | dac_fmt |= AD193X_DAC_LCR_MASTER; |
256 | break; |
257 | case SND_SOC_DAIFMT_CBP_CFC: |
258 | adc_fmt |= AD193X_ADC_BCLK_MASTER; |
259 | dac_fmt |= AD193X_DAC_BCLK_MASTER; |
260 | break; |
261 | case SND_SOC_DAIFMT_CBC_CFC: |
262 | break; |
263 | default: |
264 | return -EINVAL; |
265 | } |
266 | |
267 | if (ad193x_has_adc(ad193x)) { |
268 | regmap_update_bits(map: ad193x->regmap, AD193X_ADC_CTRL1, |
269 | AD193X_ADC_SERFMT_MASK, val: adc_serfmt); |
270 | regmap_update_bits(map: ad193x->regmap, AD193X_ADC_CTRL2, |
271 | AD193X_ADC_FMT_MASK, val: adc_fmt); |
272 | } |
273 | regmap_update_bits(map: ad193x->regmap, AD193X_DAC_CTRL0, |
274 | AD193X_DAC_SERFMT_MASK, val: dac_serfmt); |
275 | regmap_update_bits(map: ad193x->regmap, AD193X_DAC_CTRL1, |
276 | AD193X_DAC_FMT_MASK, val: dac_fmt); |
277 | |
278 | return 0; |
279 | } |
280 | |
281 | static 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(c: component); |
287 | |
288 | if (clk_id == AD193X_SYSCLK_MCLK) { |
289 | /* MCLK must be 512 x fs */ |
290 | if (dir == SND_SOC_CLOCK_OUT || freq != 24576000) |
291 | return -EINVAL; |
292 | |
293 | regmap_update_bits(map: 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 | |
312 | static 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(c: component); |
319 | bool is_playback = substream->stream == SNDRV_PCM_STREAM_PLAYBACK; |
320 | u8 dacc0; |
321 | |
322 | dev_dbg(dai->dev, "%s() rate=%u format=%#x width=%u channels=%u\n" , |
323 | __func__, params_rate(params), params_format(params), |
324 | params_width(params), params_channels(params)); |
325 | |
326 | |
327 | /* bit size */ |
328 | switch (params_width(p: params)) { |
329 | case 16: |
330 | word_len = 3; |
331 | break; |
332 | case 20: |
333 | word_len = 1; |
334 | break; |
335 | case 24: |
336 | case 32: |
337 | word_len = 0; |
338 | break; |
339 | } |
340 | |
341 | switch (ad193x->sysclk) { |
342 | case 12288000: |
343 | master_rate = AD193X_PLL_INPUT_256; |
344 | break; |
345 | case 18432000: |
346 | master_rate = AD193X_PLL_INPUT_384; |
347 | break; |
348 | case 24576000: |
349 | master_rate = AD193X_PLL_INPUT_512; |
350 | break; |
351 | case 36864000: |
352 | master_rate = AD193X_PLL_INPUT_768; |
353 | break; |
354 | } |
355 | |
356 | if (is_playback) { |
357 | switch (params_rate(p: params)) { |
358 | case 48000: |
359 | dacc0 = AD193X_DAC_SR_48; |
360 | break; |
361 | case 96000: |
362 | dacc0 = AD193X_DAC_SR_96; |
363 | break; |
364 | case 192000: |
365 | dacc0 = AD193X_DAC_SR_192; |
366 | break; |
367 | default: |
368 | dev_err(dai->dev, "invalid sampling rate: %d\n" , params_rate(params)); |
369 | return -EINVAL; |
370 | } |
371 | |
372 | regmap_update_bits(map: ad193x->regmap, AD193X_DAC_CTRL0, AD193X_DAC_SR_MASK, val: dacc0); |
373 | } |
374 | |
375 | regmap_update_bits(map: ad193x->regmap, AD193X_PLL_CLK_CTRL0, |
376 | AD193X_PLL_INPUT_MASK, val: master_rate); |
377 | |
378 | regmap_update_bits(map: ad193x->regmap, AD193X_DAC_CTRL2, |
379 | AD193X_DAC_WORD_LEN_MASK, |
380 | val: word_len << AD193X_DAC_WORD_LEN_SHFT); |
381 | |
382 | if (ad193x_has_adc(ad193x)) |
383 | regmap_update_bits(map: ad193x->regmap, AD193X_ADC_CTRL1, |
384 | AD193X_ADC_WORD_LEN_MASK, val: word_len); |
385 | |
386 | return 0; |
387 | } |
388 | |
389 | static int ad193x_startup(struct snd_pcm_substream *substream, |
390 | struct snd_soc_dai *dai) |
391 | { |
392 | return snd_pcm_hw_constraint_list(runtime: substream->runtime, cond: 0, |
393 | SNDRV_PCM_HW_PARAM_SAMPLE_BITS, |
394 | l: &constr); |
395 | } |
396 | |
397 | static const struct snd_soc_dai_ops ad193x_dai_ops = { |
398 | .startup = ad193x_startup, |
399 | .hw_params = ad193x_hw_params, |
400 | .mute_stream = ad193x_mute, |
401 | .set_tdm_slot = ad193x_set_tdm_slot, |
402 | .set_sysclk = ad193x_set_dai_sysclk, |
403 | .set_fmt = ad193x_set_dai_fmt, |
404 | .no_capture_mute = 1, |
405 | }; |
406 | |
407 | /* codec DAI instance */ |
408 | static struct snd_soc_dai_driver ad193x_dai = { |
409 | .name = "ad193x-hifi" , |
410 | .playback = { |
411 | .stream_name = "Playback" , |
412 | .channels_min = 2, |
413 | .channels_max = 8, |
414 | .rates = SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_192000, |
415 | .formats = SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S16_LE | |
416 | SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S24_LE, |
417 | }, |
418 | .capture = { |
419 | .stream_name = "Capture" , |
420 | .channels_min = 2, |
421 | .channels_max = 4, |
422 | .rates = SNDRV_PCM_RATE_48000, |
423 | .formats = SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S16_LE | |
424 | SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S24_LE, |
425 | }, |
426 | .ops = &ad193x_dai_ops, |
427 | }; |
428 | |
429 | /* codec DAI instance for DAC only */ |
430 | static struct snd_soc_dai_driver ad193x_no_adc_dai = { |
431 | .name = "ad193x-hifi" , |
432 | .playback = { |
433 | .stream_name = "Playback" , |
434 | .channels_min = 2, |
435 | .channels_max = 8, |
436 | .rates = SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_192000, |
437 | .formats = SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S16_LE | |
438 | SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S24_LE, |
439 | }, |
440 | .ops = &ad193x_dai_ops, |
441 | }; |
442 | |
443 | /* codec register values to set after reset */ |
444 | static void ad193x_reg_default_init(struct ad193x_priv *ad193x) |
445 | { |
446 | static const struct reg_sequence reg_init[] = { |
447 | { 0, 0x99 }, /* PLL_CLK_CTRL0: pll input: mclki/xi 12.288Mhz */ |
448 | { 1, 0x04 }, /* PLL_CLK_CTRL1: no on-chip Vref */ |
449 | { 2, 0x40 }, /* DAC_CTRL0: TDM mode */ |
450 | { 3, 0x00 }, /* DAC_CTRL1: reset */ |
451 | { 4, 0x1A }, /* DAC_CTRL2: 48kHz de-emphasis, unmute dac */ |
452 | { 5, 0x00 }, /* DAC_CHNL_MUTE: unmute DAC channels */ |
453 | { 6, 0x00 }, /* DAC_L1_VOL: no attenuation */ |
454 | { 7, 0x00 }, /* DAC_R1_VOL: no attenuation */ |
455 | { 8, 0x00 }, /* DAC_L2_VOL: no attenuation */ |
456 | { 9, 0x00 }, /* DAC_R2_VOL: no attenuation */ |
457 | { 10, 0x00 }, /* DAC_L3_VOL: no attenuation */ |
458 | { 11, 0x00 }, /* DAC_R3_VOL: no attenuation */ |
459 | { 12, 0x00 }, /* DAC_L4_VOL: no attenuation */ |
460 | { 13, 0x00 }, /* DAC_R4_VOL: no attenuation */ |
461 | }; |
462 | static const struct reg_sequence reg_adc_init[] = { |
463 | { 14, 0x03 }, /* ADC_CTRL0: high-pass filter enable */ |
464 | { 15, 0x43 }, /* ADC_CTRL1: sata delay=1, adc aux mode */ |
465 | { 16, 0x00 }, /* ADC_CTRL2: reset */ |
466 | }; |
467 | |
468 | regmap_multi_reg_write(map: ad193x->regmap, regs: reg_init, ARRAY_SIZE(reg_init)); |
469 | |
470 | if (ad193x_has_adc(ad193x)) { |
471 | regmap_multi_reg_write(map: ad193x->regmap, regs: reg_adc_init, |
472 | ARRAY_SIZE(reg_adc_init)); |
473 | } |
474 | } |
475 | |
476 | static int ad193x_component_probe(struct snd_soc_component *component) |
477 | { |
478 | struct ad193x_priv *ad193x = snd_soc_component_get_drvdata(c: component); |
479 | struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component); |
480 | int num, ret; |
481 | |
482 | /* default setting for ad193x */ |
483 | ad193x_reg_default_init(ad193x); |
484 | |
485 | /* adc only */ |
486 | if (ad193x_has_adc(ad193x)) { |
487 | /* add adc controls */ |
488 | num = ARRAY_SIZE(ad193x_adc_snd_controls); |
489 | ret = snd_soc_add_component_controls(component, |
490 | controls: ad193x_adc_snd_controls, |
491 | num_controls: num); |
492 | if (ret) |
493 | return ret; |
494 | |
495 | /* add adc widgets */ |
496 | num = ARRAY_SIZE(ad193x_adc_widgets); |
497 | ret = snd_soc_dapm_new_controls(dapm, |
498 | widget: ad193x_adc_widgets, |
499 | num); |
500 | if (ret) |
501 | return ret; |
502 | |
503 | /* add adc routes */ |
504 | num = ARRAY_SIZE(ad193x_adc_audio_paths); |
505 | ret = snd_soc_dapm_add_routes(dapm, |
506 | route: ad193x_adc_audio_paths, |
507 | num); |
508 | if (ret) |
509 | return ret; |
510 | } |
511 | |
512 | return 0; |
513 | } |
514 | |
515 | static const struct snd_soc_component_driver soc_component_dev_ad193x = { |
516 | .probe = ad193x_component_probe, |
517 | .controls = ad193x_snd_controls, |
518 | .num_controls = ARRAY_SIZE(ad193x_snd_controls), |
519 | .dapm_widgets = ad193x_dapm_widgets, |
520 | .num_dapm_widgets = ARRAY_SIZE(ad193x_dapm_widgets), |
521 | .dapm_routes = audio_paths, |
522 | .num_dapm_routes = ARRAY_SIZE(audio_paths), |
523 | .idle_bias_on = 1, |
524 | .use_pmdown_time = 1, |
525 | .endianness = 1, |
526 | }; |
527 | |
528 | const struct regmap_config ad193x_regmap_config = { |
529 | .max_register = AD193X_NUM_REGS - 1, |
530 | }; |
531 | EXPORT_SYMBOL_GPL(ad193x_regmap_config); |
532 | |
533 | int ad193x_probe(struct device *dev, struct regmap *regmap, |
534 | enum ad193x_type type) |
535 | { |
536 | struct ad193x_priv *ad193x; |
537 | |
538 | if (IS_ERR(ptr: regmap)) |
539 | return PTR_ERR(ptr: regmap); |
540 | |
541 | ad193x = devm_kzalloc(dev, size: sizeof(*ad193x), GFP_KERNEL); |
542 | if (ad193x == NULL) |
543 | return -ENOMEM; |
544 | |
545 | ad193x->regmap = regmap; |
546 | ad193x->type = type; |
547 | |
548 | dev_set_drvdata(dev, data: ad193x); |
549 | |
550 | if (ad193x_has_adc(ad193x)) |
551 | return devm_snd_soc_register_component(dev, component_driver: &soc_component_dev_ad193x, |
552 | dai_drv: &ad193x_dai, num_dai: 1); |
553 | return devm_snd_soc_register_component(dev, component_driver: &soc_component_dev_ad193x, |
554 | dai_drv: &ad193x_no_adc_dai, num_dai: 1); |
555 | } |
556 | EXPORT_SYMBOL_GPL(ad193x_probe); |
557 | |
558 | MODULE_DESCRIPTION("ASoC ad193x driver" ); |
559 | MODULE_AUTHOR("Barry Song <21cnbao@gmail.com>" ); |
560 | MODULE_LICENSE("GPL" ); |
561 | |