1 | // SPDX-License-Identifier: GPL-2.0-or-later |
2 | /* |
3 | * Audio Codec driver supporting: |
4 | * AD1835A, AD1836, AD1837A, AD1838A, AD1839A |
5 | * |
6 | * Copyright 2009-2011 Analog Devices Inc. |
7 | */ |
8 | |
9 | #include <linux/init.h> |
10 | #include <linux/slab.h> |
11 | #include <linux/module.h> |
12 | #include <linux/kernel.h> |
13 | #include <linux/device.h> |
14 | #include <sound/core.h> |
15 | #include <sound/pcm.h> |
16 | #include <sound/pcm_params.h> |
17 | #include <sound/initval.h> |
18 | #include <sound/soc.h> |
19 | #include <sound/tlv.h> |
20 | #include <linux/spi/spi.h> |
21 | #include <linux/regmap.h> |
22 | |
23 | #include "ad1836.h" |
24 | |
25 | enum ad1836_type { |
26 | AD1835, |
27 | AD1836, |
28 | AD1838, |
29 | }; |
30 | |
31 | /* codec private data */ |
32 | struct ad1836_priv { |
33 | enum ad1836_type type; |
34 | struct regmap *regmap; |
35 | }; |
36 | |
37 | /* |
38 | * AD1836 volume/mute/de-emphasis etc. controls |
39 | */ |
40 | static const char *ad1836_deemp[] = {"None" , "44.1kHz" , "32kHz" , "48kHz" }; |
41 | |
42 | static SOC_ENUM_SINGLE_DECL(ad1836_deemp_enum, |
43 | AD1836_DAC_CTRL1, 8, ad1836_deemp); |
44 | |
45 | #define AD1836_DAC_VOLUME(x) \ |
46 | SOC_DOUBLE_R("DAC" #x " Playback Volume", AD1836_DAC_L_VOL(x), \ |
47 | AD1836_DAC_R_VOL(x), 0, 0x3FF, 0) |
48 | |
49 | #define AD1836_DAC_SWITCH(x) \ |
50 | SOC_DOUBLE("DAC" #x " Playback Switch", AD1836_DAC_CTRL2, \ |
51 | AD1836_MUTE_LEFT(x), AD1836_MUTE_RIGHT(x), 1, 1) |
52 | |
53 | #define AD1836_ADC_SWITCH(x) \ |
54 | SOC_DOUBLE("ADC" #x " Capture Switch", AD1836_ADC_CTRL2, \ |
55 | AD1836_MUTE_LEFT(x), AD1836_MUTE_RIGHT(x), 1, 1) |
56 | |
57 | static const struct snd_kcontrol_new ad183x_dac_controls[] = { |
58 | AD1836_DAC_VOLUME(1), |
59 | AD1836_DAC_SWITCH(1), |
60 | AD1836_DAC_VOLUME(2), |
61 | AD1836_DAC_SWITCH(2), |
62 | AD1836_DAC_VOLUME(3), |
63 | AD1836_DAC_SWITCH(3), |
64 | AD1836_DAC_VOLUME(4), |
65 | AD1836_DAC_SWITCH(4), |
66 | }; |
67 | |
68 | static const struct snd_soc_dapm_widget ad183x_dac_dapm_widgets[] = { |
69 | SND_SOC_DAPM_OUTPUT("DAC1OUT" ), |
70 | SND_SOC_DAPM_OUTPUT("DAC2OUT" ), |
71 | SND_SOC_DAPM_OUTPUT("DAC3OUT" ), |
72 | SND_SOC_DAPM_OUTPUT("DAC4OUT" ), |
73 | }; |
74 | |
75 | static const struct snd_soc_dapm_route ad183x_dac_routes[] = { |
76 | { "DAC1OUT" , NULL, "DAC" }, |
77 | { "DAC2OUT" , NULL, "DAC" }, |
78 | { "DAC3OUT" , NULL, "DAC" }, |
79 | { "DAC4OUT" , NULL, "DAC" }, |
80 | }; |
81 | |
82 | static const struct snd_kcontrol_new ad183x_adc_controls[] = { |
83 | AD1836_ADC_SWITCH(1), |
84 | AD1836_ADC_SWITCH(2), |
85 | AD1836_ADC_SWITCH(3), |
86 | }; |
87 | |
88 | static const struct snd_soc_dapm_widget ad183x_adc_dapm_widgets[] = { |
89 | SND_SOC_DAPM_INPUT("ADC1IN" ), |
90 | SND_SOC_DAPM_INPUT("ADC2IN" ), |
91 | }; |
92 | |
93 | static const struct snd_soc_dapm_route ad183x_adc_routes[] = { |
94 | { "ADC" , NULL, "ADC1IN" }, |
95 | { "ADC" , NULL, "ADC2IN" }, |
96 | }; |
97 | |
98 | static const struct snd_kcontrol_new ad183x_controls[] = { |
99 | /* ADC high-pass filter */ |
100 | SOC_SINGLE("ADC High Pass Filter Switch" , AD1836_ADC_CTRL1, |
101 | AD1836_ADC_HIGHPASS_FILTER, 1, 0), |
102 | |
103 | /* DAC de-emphasis */ |
104 | SOC_ENUM("Playback Deemphasis" , ad1836_deemp_enum), |
105 | }; |
106 | |
107 | static const struct snd_soc_dapm_widget ad183x_dapm_widgets[] = { |
108 | SND_SOC_DAPM_DAC("DAC" , "Playback" , AD1836_DAC_CTRL1, |
109 | AD1836_DAC_POWERDOWN, 1), |
110 | SND_SOC_DAPM_ADC("ADC" , "Capture" , SND_SOC_NOPM, 0, 0), |
111 | SND_SOC_DAPM_SUPPLY("ADC_PWR" , AD1836_ADC_CTRL1, |
112 | AD1836_ADC_POWERDOWN, 1, NULL, 0), |
113 | }; |
114 | |
115 | static const struct snd_soc_dapm_route ad183x_dapm_routes[] = { |
116 | { "DAC" , NULL, "ADC_PWR" }, |
117 | { "ADC" , NULL, "ADC_PWR" }, |
118 | }; |
119 | |
120 | static const DECLARE_TLV_DB_SCALE(ad1836_in_tlv, 0, 300, 0); |
121 | |
122 | static const struct snd_kcontrol_new ad1836_controls[] = { |
123 | SOC_DOUBLE_TLV("ADC2 Capture Volume" , AD1836_ADC_CTRL1, 3, 0, 4, 0, |
124 | ad1836_in_tlv), |
125 | }; |
126 | |
127 | /* |
128 | * DAI ops entries |
129 | */ |
130 | |
131 | static int ad1836_set_dai_fmt(struct snd_soc_dai *codec_dai, |
132 | unsigned int fmt) |
133 | { |
134 | switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { |
135 | /* at present, we support adc aux mode to interface with |
136 | * blackfin sport tdm mode |
137 | */ |
138 | case SND_SOC_DAIFMT_DSP_A: |
139 | break; |
140 | default: |
141 | return -EINVAL; |
142 | } |
143 | |
144 | switch (fmt & SND_SOC_DAIFMT_INV_MASK) { |
145 | case SND_SOC_DAIFMT_IB_IF: |
146 | break; |
147 | default: |
148 | return -EINVAL; |
149 | } |
150 | |
151 | switch (fmt & SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK) { |
152 | /* ALCLK,ABCLK are both output, AD1836 can only be provider */ |
153 | case SND_SOC_DAIFMT_CBP_CFP: |
154 | break; |
155 | default: |
156 | return -EINVAL; |
157 | } |
158 | |
159 | return 0; |
160 | } |
161 | |
162 | static int ad1836_hw_params(struct snd_pcm_substream *substream, |
163 | struct snd_pcm_hw_params *params, |
164 | struct snd_soc_dai *dai) |
165 | { |
166 | struct ad1836_priv *ad1836 = snd_soc_component_get_drvdata(c: dai->component); |
167 | int word_len = 0; |
168 | |
169 | /* bit size */ |
170 | switch (params_width(p: params)) { |
171 | case 16: |
172 | word_len = AD1836_WORD_LEN_16; |
173 | break; |
174 | case 20: |
175 | word_len = AD1836_WORD_LEN_20; |
176 | break; |
177 | case 24: |
178 | case 32: |
179 | word_len = AD1836_WORD_LEN_24; |
180 | break; |
181 | default: |
182 | return -EINVAL; |
183 | } |
184 | |
185 | regmap_update_bits(map: ad1836->regmap, AD1836_DAC_CTRL1, |
186 | AD1836_DAC_WORD_LEN_MASK, |
187 | val: word_len << AD1836_DAC_WORD_LEN_OFFSET); |
188 | |
189 | regmap_update_bits(map: ad1836->regmap, AD1836_ADC_CTRL2, |
190 | AD1836_ADC_WORD_LEN_MASK, |
191 | val: word_len << AD1836_ADC_WORD_OFFSET); |
192 | |
193 | return 0; |
194 | } |
195 | |
196 | static const struct snd_soc_dai_ops ad1836_dai_ops = { |
197 | .hw_params = ad1836_hw_params, |
198 | .set_fmt = ad1836_set_dai_fmt, |
199 | }; |
200 | |
201 | #define AD183X_DAI(_name, num_dacs, num_adcs) \ |
202 | { \ |
203 | .name = _name "-hifi", \ |
204 | .playback = { \ |
205 | .stream_name = "Playback", \ |
206 | .channels_min = 2, \ |
207 | .channels_max = (num_dacs) * 2, \ |
208 | .rates = SNDRV_PCM_RATE_48000, \ |
209 | .formats = SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S16_LE | \ |
210 | SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S24_LE, \ |
211 | }, \ |
212 | .capture = { \ |
213 | .stream_name = "Capture", \ |
214 | .channels_min = 2, \ |
215 | .channels_max = (num_adcs) * 2, \ |
216 | .rates = SNDRV_PCM_RATE_48000, \ |
217 | .formats = SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S16_LE | \ |
218 | SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S24_LE, \ |
219 | }, \ |
220 | .ops = &ad1836_dai_ops, \ |
221 | } |
222 | |
223 | static struct snd_soc_dai_driver ad183x_dais[] = { |
224 | [AD1835] = AD183X_DAI("ad1835" , 4, 1), |
225 | [AD1836] = AD183X_DAI("ad1836" , 3, 2), |
226 | [AD1838] = AD183X_DAI("ad1838" , 3, 1), |
227 | }; |
228 | |
229 | #ifdef CONFIG_PM |
230 | static int ad1836_suspend(struct snd_soc_component *component) |
231 | { |
232 | struct ad1836_priv *ad1836 = snd_soc_component_get_drvdata(c: component); |
233 | /* reset clock control mode */ |
234 | return regmap_update_bits(map: ad1836->regmap, AD1836_ADC_CTRL2, |
235 | AD1836_ADC_SERFMT_MASK, val: 0); |
236 | } |
237 | |
238 | static int ad1836_resume(struct snd_soc_component *component) |
239 | { |
240 | struct ad1836_priv *ad1836 = snd_soc_component_get_drvdata(c: component); |
241 | /* restore clock control mode */ |
242 | return regmap_update_bits(map: ad1836->regmap, AD1836_ADC_CTRL2, |
243 | AD1836_ADC_SERFMT_MASK, AD1836_ADC_AUX); |
244 | } |
245 | #else |
246 | #define ad1836_suspend NULL |
247 | #define ad1836_resume NULL |
248 | #endif |
249 | |
250 | static int ad1836_probe(struct snd_soc_component *component) |
251 | { |
252 | struct ad1836_priv *ad1836 = snd_soc_component_get_drvdata(c: component); |
253 | struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component); |
254 | int num_dacs, num_adcs; |
255 | int ret = 0; |
256 | int i; |
257 | |
258 | num_dacs = ad183x_dais[ad1836->type].playback.channels_max / 2; |
259 | num_adcs = ad183x_dais[ad1836->type].capture.channels_max / 2; |
260 | |
261 | /* default setting for ad1836 */ |
262 | /* de-emphasis: 48kHz, power-on dac */ |
263 | regmap_write(map: ad1836->regmap, AD1836_DAC_CTRL1, val: 0x300); |
264 | /* unmute dac channels */ |
265 | regmap_write(map: ad1836->regmap, AD1836_DAC_CTRL2, val: 0x0); |
266 | /* high-pass filter enable, power-on adc */ |
267 | regmap_write(map: ad1836->regmap, AD1836_ADC_CTRL1, val: 0x100); |
268 | /* unmute adc channles, adc aux mode */ |
269 | regmap_write(map: ad1836->regmap, AD1836_ADC_CTRL2, val: 0x180); |
270 | /* volume */ |
271 | for (i = 1; i <= num_dacs; ++i) { |
272 | regmap_write(map: ad1836->regmap, AD1836_DAC_L_VOL(i), val: 0x3FF); |
273 | regmap_write(map: ad1836->regmap, AD1836_DAC_R_VOL(i), val: 0x3FF); |
274 | } |
275 | |
276 | if (ad1836->type == AD1836) { |
277 | /* left/right diff:PGA/MUX */ |
278 | regmap_write(map: ad1836->regmap, AD1836_ADC_CTRL3, val: 0x3A); |
279 | ret = snd_soc_add_component_controls(component, controls: ad1836_controls, |
280 | ARRAY_SIZE(ad1836_controls)); |
281 | if (ret) |
282 | return ret; |
283 | } else { |
284 | regmap_write(map: ad1836->regmap, AD1836_ADC_CTRL3, val: 0x00); |
285 | } |
286 | |
287 | ret = snd_soc_add_component_controls(component, controls: ad183x_dac_controls, num_controls: num_dacs * 2); |
288 | if (ret) |
289 | return ret; |
290 | |
291 | ret = snd_soc_add_component_controls(component, controls: ad183x_adc_controls, num_controls: num_adcs); |
292 | if (ret) |
293 | return ret; |
294 | |
295 | ret = snd_soc_dapm_new_controls(dapm, widget: ad183x_dac_dapm_widgets, num: num_dacs); |
296 | if (ret) |
297 | return ret; |
298 | |
299 | ret = snd_soc_dapm_new_controls(dapm, widget: ad183x_adc_dapm_widgets, num: num_adcs); |
300 | if (ret) |
301 | return ret; |
302 | |
303 | ret = snd_soc_dapm_add_routes(dapm, route: ad183x_dac_routes, num: num_dacs); |
304 | if (ret) |
305 | return ret; |
306 | |
307 | ret = snd_soc_dapm_add_routes(dapm, route: ad183x_adc_routes, num: num_adcs); |
308 | |
309 | return ret; |
310 | } |
311 | |
312 | /* power down chip */ |
313 | static void ad1836_remove(struct snd_soc_component *component) |
314 | { |
315 | struct ad1836_priv *ad1836 = snd_soc_component_get_drvdata(c: component); |
316 | /* reset clock control mode */ |
317 | regmap_update_bits(map: ad1836->regmap, AD1836_ADC_CTRL2, |
318 | AD1836_ADC_SERFMT_MASK, val: 0); |
319 | } |
320 | |
321 | static const struct snd_soc_component_driver soc_component_dev_ad1836 = { |
322 | .probe = ad1836_probe, |
323 | .remove = ad1836_remove, |
324 | .suspend = ad1836_suspend, |
325 | .resume = ad1836_resume, |
326 | .controls = ad183x_controls, |
327 | .num_controls = ARRAY_SIZE(ad183x_controls), |
328 | .dapm_widgets = ad183x_dapm_widgets, |
329 | .num_dapm_widgets = ARRAY_SIZE(ad183x_dapm_widgets), |
330 | .dapm_routes = ad183x_dapm_routes, |
331 | .num_dapm_routes = ARRAY_SIZE(ad183x_dapm_routes), |
332 | .idle_bias_on = 1, |
333 | .use_pmdown_time = 1, |
334 | .endianness = 1, |
335 | }; |
336 | |
337 | static const struct reg_default ad1836_reg_defaults[] = { |
338 | { AD1836_DAC_CTRL1, 0x0000 }, |
339 | { AD1836_DAC_CTRL2, 0x0000 }, |
340 | { AD1836_DAC_L_VOL(0), 0x0000 }, |
341 | { AD1836_DAC_R_VOL(0), 0x0000 }, |
342 | { AD1836_DAC_L_VOL(1), 0x0000 }, |
343 | { AD1836_DAC_R_VOL(1), 0x0000 }, |
344 | { AD1836_DAC_L_VOL(2), 0x0000 }, |
345 | { AD1836_DAC_R_VOL(2), 0x0000 }, |
346 | { AD1836_DAC_L_VOL(3), 0x0000 }, |
347 | { AD1836_DAC_R_VOL(3), 0x0000 }, |
348 | { AD1836_ADC_CTRL1, 0x0000 }, |
349 | { AD1836_ADC_CTRL2, 0x0000 }, |
350 | { AD1836_ADC_CTRL3, 0x0000 }, |
351 | }; |
352 | |
353 | static const struct regmap_config ad1836_regmap_config = { |
354 | .val_bits = 12, |
355 | .reg_bits = 4, |
356 | .read_flag_mask = 0x08, |
357 | |
358 | .max_register = AD1836_ADC_CTRL3, |
359 | .reg_defaults = ad1836_reg_defaults, |
360 | .num_reg_defaults = ARRAY_SIZE(ad1836_reg_defaults), |
361 | .cache_type = REGCACHE_MAPLE, |
362 | }; |
363 | |
364 | static int ad1836_spi_probe(struct spi_device *spi) |
365 | { |
366 | struct ad1836_priv *ad1836; |
367 | int ret; |
368 | |
369 | ad1836 = devm_kzalloc(dev: &spi->dev, size: sizeof(struct ad1836_priv), |
370 | GFP_KERNEL); |
371 | if (ad1836 == NULL) |
372 | return -ENOMEM; |
373 | |
374 | ad1836->regmap = devm_regmap_init_spi(spi, &ad1836_regmap_config); |
375 | if (IS_ERR(ptr: ad1836->regmap)) |
376 | return PTR_ERR(ptr: ad1836->regmap); |
377 | |
378 | ad1836->type = spi_get_device_id(sdev: spi)->driver_data; |
379 | |
380 | spi_set_drvdata(spi, data: ad1836); |
381 | |
382 | ret = devm_snd_soc_register_component(dev: &spi->dev, |
383 | component_driver: &soc_component_dev_ad1836, dai_drv: &ad183x_dais[ad1836->type], num_dai: 1); |
384 | return ret; |
385 | } |
386 | |
387 | static const struct spi_device_id ad1836_ids[] = { |
388 | { "ad1835" , AD1835 }, |
389 | { "ad1836" , AD1836 }, |
390 | { "ad1837" , AD1835 }, |
391 | { "ad1838" , AD1838 }, |
392 | { "ad1839" , AD1838 }, |
393 | { }, |
394 | }; |
395 | MODULE_DEVICE_TABLE(spi, ad1836_ids); |
396 | |
397 | static struct spi_driver ad1836_spi_driver = { |
398 | .driver = { |
399 | .name = "ad1836" , |
400 | }, |
401 | .probe = ad1836_spi_probe, |
402 | .id_table = ad1836_ids, |
403 | }; |
404 | |
405 | module_spi_driver(ad1836_spi_driver); |
406 | |
407 | MODULE_DESCRIPTION("ASoC ad1836 driver" ); |
408 | MODULE_AUTHOR("Barry Song <21cnbao@gmail.com>" ); |
409 | MODULE_LICENSE("GPL" ); |
410 | |