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Commit | Line | Data |
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42f32c55 MF |
1 | /* |
2 | * Audio Codec driver supporting: | |
3 | * AD1835A, AD1836, AD1837A, AD1838A, AD1839A | |
7eaae41e | 4 | * |
42f32c55 | 5 | * Copyright 2009-2011 Analog Devices Inc. |
7eaae41e | 6 | * |
42f32c55 | 7 | * Licensed under the GPL-2 or later. |
7eaae41e BS |
8 | */ |
9 | ||
10 | #include <linux/init.h> | |
5a0e3ad6 | 11 | #include <linux/slab.h> |
7eaae41e | 12 | #include <linux/module.h> |
7eaae41e BS |
13 | #include <linux/kernel.h> |
14 | #include <linux/device.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> | |
7eaae41e | 21 | #include <linux/spi/spi.h> |
7f22fd9c LPC |
22 | #include <linux/regmap.h> |
23 | ||
7eaae41e BS |
24 | #include "ad1836.h" |
25 | ||
874ce77b LPC |
26 | enum ad1836_type { |
27 | AD1835, | |
28 | AD1836, | |
29 | AD1838, | |
30 | }; | |
31 | ||
7eaae41e BS |
32 | /* codec private data */ |
33 | struct ad1836_priv { | |
874ce77b | 34 | enum ad1836_type type; |
7f22fd9c | 35 | struct regmap *regmap; |
7eaae41e BS |
36 | }; |
37 | ||
7eaae41e BS |
38 | /* |
39 | * AD1836 volume/mute/de-emphasis etc. controls | |
40 | */ | |
41 | static const char *ad1836_deemp[] = {"None", "44.1kHz", "32kHz", "48kHz"}; | |
42 | ||
2e86434f TI |
43 | static SOC_ENUM_SINGLE_DECL(ad1836_deemp_enum, |
44 | AD1836_DAC_CTRL1, 8, ad1836_deemp); | |
7eaae41e | 45 | |
90bc11d1 LPC |
46 | #define AD1836_DAC_VOLUME(x) \ |
47 | SOC_DOUBLE_R("DAC" #x " Playback Volume", AD1836_DAC_L_VOL(x), \ | |
48 | AD1836_DAC_R_VOL(x), 0, 0x3FF, 0) | |
49 | ||
50 | #define AD1836_DAC_SWITCH(x) \ | |
51 | SOC_DOUBLE("DAC" #x " Playback Switch", AD1836_DAC_CTRL2, \ | |
52 | AD1836_MUTE_LEFT(x), AD1836_MUTE_RIGHT(x), 1, 1) | |
53 | ||
54 | #define AD1836_ADC_SWITCH(x) \ | |
55 | SOC_DOUBLE("ADC" #x " Capture Switch", AD1836_ADC_CTRL2, \ | |
56 | AD1836_MUTE_LEFT(x), AD1836_MUTE_RIGHT(x), 1, 1) | |
57 | ||
874ce77b | 58 | static const struct snd_kcontrol_new ad183x_dac_controls[] = { |
90bc11d1 | 59 | AD1836_DAC_VOLUME(1), |
874ce77b | 60 | AD1836_DAC_SWITCH(1), |
90bc11d1 | 61 | AD1836_DAC_VOLUME(2), |
874ce77b | 62 | AD1836_DAC_SWITCH(2), |
90bc11d1 | 63 | AD1836_DAC_VOLUME(3), |
874ce77b LPC |
64 | AD1836_DAC_SWITCH(3), |
65 | AD1836_DAC_VOLUME(4), | |
66 | AD1836_DAC_SWITCH(4), | |
67 | }; | |
68 | ||
69 | static const struct snd_soc_dapm_widget ad183x_dac_dapm_widgets[] = { | |
70 | SND_SOC_DAPM_OUTPUT("DAC1OUT"), | |
71 | SND_SOC_DAPM_OUTPUT("DAC2OUT"), | |
72 | SND_SOC_DAPM_OUTPUT("DAC3OUT"), | |
73 | SND_SOC_DAPM_OUTPUT("DAC4OUT"), | |
74 | }; | |
75 | ||
76 | static const struct snd_soc_dapm_route ad183x_dac_routes[] = { | |
77 | { "DAC1OUT", NULL, "DAC" }, | |
78 | { "DAC2OUT", NULL, "DAC" }, | |
79 | { "DAC3OUT", NULL, "DAC" }, | |
80 | { "DAC4OUT", NULL, "DAC" }, | |
81 | }; | |
7eaae41e | 82 | |
874ce77b | 83 | static const struct snd_kcontrol_new ad183x_adc_controls[] = { |
90bc11d1 LPC |
84 | AD1836_ADC_SWITCH(1), |
85 | AD1836_ADC_SWITCH(2), | |
874ce77b LPC |
86 | AD1836_ADC_SWITCH(3), |
87 | }; | |
7eaae41e | 88 | |
874ce77b LPC |
89 | static const struct snd_soc_dapm_widget ad183x_adc_dapm_widgets[] = { |
90 | SND_SOC_DAPM_INPUT("ADC1IN"), | |
91 | SND_SOC_DAPM_INPUT("ADC2IN"), | |
92 | }; | |
93 | ||
94 | static const struct snd_soc_dapm_route ad183x_adc_routes[] = { | |
95 | { "ADC", NULL, "ADC1IN" }, | |
96 | { "ADC", NULL, "ADC2IN" }, | |
97 | }; | |
7eaae41e | 98 | |
874ce77b | 99 | static const struct snd_kcontrol_new ad183x_controls[] = { |
7eaae41e BS |
100 | /* ADC high-pass filter */ |
101 | SOC_SINGLE("ADC High Pass Filter Switch", AD1836_ADC_CTRL1, | |
102 | AD1836_ADC_HIGHPASS_FILTER, 1, 0), | |
103 | ||
104 | /* DAC de-emphasis */ | |
105 | SOC_ENUM("Playback Deemphasis", ad1836_deemp_enum), | |
106 | }; | |
107 | ||
874ce77b | 108 | static const struct snd_soc_dapm_widget ad183x_dapm_widgets[] = { |
7eaae41e BS |
109 | SND_SOC_DAPM_DAC("DAC", "Playback", AD1836_DAC_CTRL1, |
110 | AD1836_DAC_POWERDOWN, 1), | |
111 | SND_SOC_DAPM_ADC("ADC", "Capture", SND_SOC_NOPM, 0, 0), | |
112 | SND_SOC_DAPM_SUPPLY("ADC_PWR", AD1836_ADC_CTRL1, | |
113 | AD1836_ADC_POWERDOWN, 1, NULL, 0), | |
7eaae41e BS |
114 | }; |
115 | ||
874ce77b | 116 | static const struct snd_soc_dapm_route ad183x_dapm_routes[] = { |
7eaae41e BS |
117 | { "DAC", NULL, "ADC_PWR" }, |
118 | { "ADC", NULL, "ADC_PWR" }, | |
7eaae41e BS |
119 | }; |
120 | ||
f97d0c6d LPC |
121 | static const DECLARE_TLV_DB_SCALE(ad1836_in_tlv, 0, 300, 0); |
122 | ||
123 | static const struct snd_kcontrol_new ad1836_controls[] = { | |
0c8e2917 | 124 | SOC_DOUBLE_TLV("ADC2 Capture Volume", AD1836_ADC_CTRL1, 3, 0, 4, 0, |
f97d0c6d LPC |
125 | ad1836_in_tlv), |
126 | }; | |
127 | ||
7eaae41e BS |
128 | /* |
129 | * DAI ops entries | |
130 | */ | |
131 | ||
132 | static int ad1836_set_dai_fmt(struct snd_soc_dai *codec_dai, | |
133 | unsigned int fmt) | |
134 | { | |
135 | switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { | |
136 | /* at present, we support adc aux mode to interface with | |
137 | * blackfin sport tdm mode | |
138 | */ | |
139 | case SND_SOC_DAIFMT_DSP_A: | |
140 | break; | |
141 | default: | |
142 | return -EINVAL; | |
143 | } | |
144 | ||
145 | switch (fmt & SND_SOC_DAIFMT_INV_MASK) { | |
146 | case SND_SOC_DAIFMT_IB_IF: | |
147 | break; | |
148 | default: | |
149 | return -EINVAL; | |
150 | } | |
151 | ||
152 | switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { | |
153 | /* ALCLK,ABCLK are both output, AD1836 can only be master */ | |
154 | case SND_SOC_DAIFMT_CBM_CFM: | |
155 | break; | |
156 | default: | |
157 | return -EINVAL; | |
158 | } | |
159 | ||
160 | return 0; | |
161 | } | |
162 | ||
163 | static int ad1836_hw_params(struct snd_pcm_substream *substream, | |
164 | struct snd_pcm_hw_params *params, | |
165 | struct snd_soc_dai *dai) | |
166 | { | |
7f22fd9c | 167 | struct ad1836_priv *ad1836 = snd_soc_codec_get_drvdata(dai->codec); |
7eaae41e | 168 | int word_len = 0; |
7eaae41e BS |
169 | |
170 | /* bit size */ | |
fa69b0f9 MB |
171 | switch (params_width(params)) { |
172 | case 16: | |
8ca695f2 | 173 | word_len = AD1836_WORD_LEN_16; |
7eaae41e | 174 | break; |
fa69b0f9 | 175 | case 20: |
8ca695f2 | 176 | word_len = AD1836_WORD_LEN_20; |
7eaae41e | 177 | break; |
fa69b0f9 MB |
178 | case 24: |
179 | case 32: | |
8ca695f2 | 180 | word_len = AD1836_WORD_LEN_24; |
7eaae41e | 181 | break; |
c097d5fd MB |
182 | default: |
183 | return -EINVAL; | |
7eaae41e BS |
184 | } |
185 | ||
7f22fd9c LPC |
186 | regmap_update_bits(ad1836->regmap, AD1836_DAC_CTRL1, |
187 | AD1836_DAC_WORD_LEN_MASK, | |
8ca695f2 | 188 | word_len << AD1836_DAC_WORD_LEN_OFFSET); |
7eaae41e | 189 | |
7f22fd9c LPC |
190 | regmap_update_bits(ad1836->regmap, AD1836_ADC_CTRL2, |
191 | AD1836_ADC_WORD_LEN_MASK, | |
8ca695f2 | 192 | word_len << AD1836_ADC_WORD_OFFSET); |
7eaae41e BS |
193 | |
194 | return 0; | |
195 | } | |
196 | ||
85e7652d | 197 | static const struct snd_soc_dai_ops ad1836_dai_ops = { |
7eaae41e BS |
198 | .hw_params = ad1836_hw_params, |
199 | .set_fmt = ad1836_set_dai_fmt, | |
200 | }; | |
201 | ||
874ce77b LPC |
202 | #define AD183X_DAI(_name, num_dacs, num_adcs) \ |
203 | { \ | |
204 | .name = _name "-hifi", \ | |
205 | .playback = { \ | |
206 | .stream_name = "Playback", \ | |
207 | .channels_min = 2, \ | |
208 | .channels_max = (num_dacs) * 2, \ | |
209 | .rates = SNDRV_PCM_RATE_48000, \ | |
210 | .formats = SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S16_LE | \ | |
211 | SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S24_LE, \ | |
212 | }, \ | |
213 | .capture = { \ | |
214 | .stream_name = "Capture", \ | |
215 | .channels_min = 2, \ | |
216 | .channels_max = (num_adcs) * 2, \ | |
217 | .rates = SNDRV_PCM_RATE_48000, \ | |
218 | .formats = SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S16_LE | \ | |
219 | SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S24_LE, \ | |
220 | }, \ | |
221 | .ops = &ad1836_dai_ops, \ | |
222 | } | |
223 | ||
224 | static struct snd_soc_dai_driver ad183x_dais[] = { | |
225 | [AD1835] = AD183X_DAI("ad1835", 4, 1), | |
226 | [AD1836] = AD183X_DAI("ad1836", 3, 2), | |
227 | [AD1838] = AD183X_DAI("ad1838", 3, 1), | |
7eaae41e | 228 | }; |
7eaae41e | 229 | |
5d0e7f61 | 230 | #ifdef CONFIG_PM |
84b315ee | 231 | static int ad1836_suspend(struct snd_soc_codec *codec) |
5d0e7f61 | 232 | { |
7f22fd9c | 233 | struct ad1836_priv *ad1836 = snd_soc_codec_get_drvdata(codec); |
5d0e7f61 | 234 | /* reset clock control mode */ |
7f22fd9c | 235 | return regmap_update_bits(ad1836->regmap, AD1836_ADC_CTRL2, |
5d0e7f61 BS |
236 | AD1836_ADC_SERFMT_MASK, 0); |
237 | } | |
238 | ||
239 | static int ad1836_resume(struct snd_soc_codec *codec) | |
240 | { | |
7f22fd9c | 241 | struct ad1836_priv *ad1836 = snd_soc_codec_get_drvdata(codec); |
5d0e7f61 | 242 | /* restore clock control mode */ |
7f22fd9c | 243 | return regmap_update_bits(ad1836->regmap, AD1836_ADC_CTRL2, |
5d0e7f61 BS |
244 | AD1836_ADC_SERFMT_MASK, AD1836_ADC_AUX); |
245 | } | |
246 | #else | |
247 | #define ad1836_suspend NULL | |
248 | #define ad1836_resume NULL | |
249 | #endif | |
250 | ||
f0fba2ad | 251 | static int ad1836_probe(struct snd_soc_codec *codec) |
7eaae41e | 252 | { |
f0fba2ad | 253 | struct ad1836_priv *ad1836 = snd_soc_codec_get_drvdata(codec); |
ce6120cc | 254 | struct snd_soc_dapm_context *dapm = &codec->dapm; |
874ce77b | 255 | int num_dacs, num_adcs; |
f0fba2ad | 256 | int ret = 0; |
874ce77b LPC |
257 | int i; |
258 | ||
259 | num_dacs = ad183x_dais[ad1836->type].playback.channels_max / 2; | |
260 | num_adcs = ad183x_dais[ad1836->type].capture.channels_max / 2; | |
7eaae41e BS |
261 | |
262 | /* default setting for ad1836 */ | |
263 | /* de-emphasis: 48kHz, power-on dac */ | |
7f22fd9c | 264 | regmap_write(ad1836->regmap, AD1836_DAC_CTRL1, 0x300); |
7eaae41e | 265 | /* unmute dac channels */ |
7f22fd9c | 266 | regmap_write(ad1836->regmap, AD1836_DAC_CTRL2, 0x0); |
7eaae41e | 267 | /* high-pass filter enable, power-on adc */ |
7f22fd9c | 268 | regmap_write(ad1836->regmap, AD1836_ADC_CTRL1, 0x100); |
7eaae41e | 269 | /* unmute adc channles, adc aux mode */ |
7f22fd9c | 270 | regmap_write(ad1836->regmap, AD1836_ADC_CTRL2, 0x180); |
7eaae41e | 271 | /* volume */ |
874ce77b | 272 | for (i = 1; i <= num_dacs; ++i) { |
7f22fd9c LPC |
273 | regmap_write(ad1836->regmap, AD1836_DAC_L_VOL(i), 0x3FF); |
274 | regmap_write(ad1836->regmap, AD1836_DAC_R_VOL(i), 0x3FF); | |
874ce77b LPC |
275 | } |
276 | ||
277 | if (ad1836->type == AD1836) { | |
278 | /* left/right diff:PGA/MUX */ | |
7f22fd9c | 279 | regmap_write(ad1836->regmap, AD1836_ADC_CTRL3, 0x3A); |
022658be | 280 | ret = snd_soc_add_codec_controls(codec, ad1836_controls, |
f97d0c6d LPC |
281 | ARRAY_SIZE(ad1836_controls)); |
282 | if (ret) | |
283 | return ret; | |
874ce77b | 284 | } else { |
7f22fd9c | 285 | regmap_write(ad1836->regmap, AD1836_ADC_CTRL3, 0x00); |
874ce77b LPC |
286 | } |
287 | ||
022658be | 288 | ret = snd_soc_add_codec_controls(codec, ad183x_dac_controls, num_dacs * 2); |
874ce77b LPC |
289 | if (ret) |
290 | return ret; | |
291 | ||
022658be | 292 | ret = snd_soc_add_codec_controls(codec, ad183x_adc_controls, num_adcs); |
874ce77b LPC |
293 | if (ret) |
294 | return ret; | |
295 | ||
296 | ret = snd_soc_dapm_new_controls(dapm, ad183x_dac_dapm_widgets, num_dacs); | |
297 | if (ret) | |
298 | return ret; | |
299 | ||
300 | ret = snd_soc_dapm_new_controls(dapm, ad183x_adc_dapm_widgets, num_adcs); | |
301 | if (ret) | |
302 | return ret; | |
303 | ||
304 | ret = snd_soc_dapm_add_routes(dapm, ad183x_dac_routes, num_dacs); | |
305 | if (ret) | |
306 | return ret; | |
307 | ||
308 | ret = snd_soc_dapm_add_routes(dapm, ad183x_adc_routes, num_adcs); | |
309 | if (ret) | |
310 | return ret; | |
7eaae41e | 311 | |
7eaae41e BS |
312 | return ret; |
313 | } | |
314 | ||
315 | /* power down chip */ | |
f0fba2ad | 316 | static int ad1836_remove(struct snd_soc_codec *codec) |
7eaae41e | 317 | { |
7f22fd9c | 318 | struct ad1836_priv *ad1836 = snd_soc_codec_get_drvdata(codec); |
f0fba2ad | 319 | /* reset clock control mode */ |
7f22fd9c | 320 | return regmap_update_bits(ad1836->regmap, AD1836_ADC_CTRL2, |
2cf03428 | 321 | AD1836_ADC_SERFMT_MASK, 0); |
7eaae41e BS |
322 | } |
323 | ||
f0fba2ad | 324 | static struct snd_soc_codec_driver soc_codec_dev_ad1836 = { |
d4d80f5e MF |
325 | .probe = ad1836_probe, |
326 | .remove = ad1836_remove, | |
5d0e7f61 BS |
327 | .suspend = ad1836_suspend, |
328 | .resume = ad1836_resume, | |
874ce77b LPC |
329 | |
330 | .controls = ad183x_controls, | |
331 | .num_controls = ARRAY_SIZE(ad183x_controls), | |
332 | .dapm_widgets = ad183x_dapm_widgets, | |
333 | .num_dapm_widgets = ARRAY_SIZE(ad183x_dapm_widgets), | |
334 | .dapm_routes = ad183x_dapm_routes, | |
335 | .num_dapm_routes = ARRAY_SIZE(ad183x_dapm_routes), | |
f0fba2ad LG |
336 | }; |
337 | ||
7f22fd9c LPC |
338 | static const struct reg_default ad1836_reg_defaults[] = { |
339 | { AD1836_DAC_CTRL1, 0x0000 }, | |
340 | { AD1836_DAC_CTRL2, 0x0000 }, | |
341 | { AD1836_DAC_L_VOL(0), 0x0000 }, | |
342 | { AD1836_DAC_R_VOL(0), 0x0000 }, | |
343 | { AD1836_DAC_L_VOL(1), 0x0000 }, | |
344 | { AD1836_DAC_R_VOL(1), 0x0000 }, | |
345 | { AD1836_DAC_L_VOL(2), 0x0000 }, | |
346 | { AD1836_DAC_R_VOL(2), 0x0000 }, | |
347 | { AD1836_DAC_L_VOL(3), 0x0000 }, | |
348 | { AD1836_DAC_R_VOL(3), 0x0000 }, | |
349 | { AD1836_ADC_CTRL1, 0x0000 }, | |
350 | { AD1836_ADC_CTRL2, 0x0000 }, | |
351 | { AD1836_ADC_CTRL3, 0x0000 }, | |
352 | }; | |
353 | ||
354 | static const struct regmap_config ad1836_regmap_config = { | |
355 | .val_bits = 12, | |
356 | .reg_bits = 4, | |
357 | .read_flag_mask = 0x08, | |
358 | ||
359 | .max_register = AD1836_ADC_CTRL3, | |
360 | .reg_defaults = ad1836_reg_defaults, | |
361 | .num_reg_defaults = ARRAY_SIZE(ad1836_reg_defaults), | |
362 | .cache_type = REGCACHE_RBTREE, | |
363 | }; | |
364 | ||
7a79e94e | 365 | static int ad1836_spi_probe(struct spi_device *spi) |
f0fba2ad LG |
366 | { |
367 | struct ad1836_priv *ad1836; | |
368 | int ret; | |
369 | ||
6e4f17cb AL |
370 | ad1836 = devm_kzalloc(&spi->dev, sizeof(struct ad1836_priv), |
371 | GFP_KERNEL); | |
f0fba2ad LG |
372 | if (ad1836 == NULL) |
373 | return -ENOMEM; | |
374 | ||
7f22fd9c LPC |
375 | ad1836->regmap = devm_regmap_init_spi(spi, &ad1836_regmap_config); |
376 | if (IS_ERR(ad1836->regmap)) | |
377 | return PTR_ERR(ad1836->regmap); | |
378 | ||
874ce77b LPC |
379 | ad1836->type = spi_get_device_id(spi)->driver_data; |
380 | ||
f0fba2ad | 381 | spi_set_drvdata(spi, ad1836); |
f0fba2ad LG |
382 | |
383 | ret = snd_soc_register_codec(&spi->dev, | |
874ce77b | 384 | &soc_codec_dev_ad1836, &ad183x_dais[ad1836->type], 1); |
f0fba2ad LG |
385 | return ret; |
386 | } | |
387 | ||
7a79e94e | 388 | static int ad1836_spi_remove(struct spi_device *spi) |
f0fba2ad LG |
389 | { |
390 | snd_soc_unregister_codec(&spi->dev); | |
f0fba2ad LG |
391 | return 0; |
392 | } | |
6e4f17cb | 393 | |
874ce77b LPC |
394 | static const struct spi_device_id ad1836_ids[] = { |
395 | { "ad1835", AD1835 }, | |
396 | { "ad1836", AD1836 }, | |
397 | { "ad1837", AD1835 }, | |
398 | { "ad1838", AD1838 }, | |
399 | { "ad1839", AD1838 }, | |
400 | { }, | |
401 | }; | |
402 | MODULE_DEVICE_TABLE(spi, ad1836_ids); | |
f0fba2ad LG |
403 | |
404 | static struct spi_driver ad1836_spi_driver = { | |
405 | .driver = { | |
0679059a | 406 | .name = "ad1836", |
f0fba2ad LG |
407 | .owner = THIS_MODULE, |
408 | }, | |
409 | .probe = ad1836_spi_probe, | |
7a79e94e | 410 | .remove = ad1836_spi_remove, |
874ce77b | 411 | .id_table = ad1836_ids, |
7eaae41e | 412 | }; |
7eaae41e | 413 | |
2a9a9c87 | 414 | module_spi_driver(ad1836_spi_driver); |
7eaae41e BS |
415 | |
416 | MODULE_DESCRIPTION("ASoC ad1836 driver"); | |
417 | MODULE_AUTHOR("Barry Song <21cnbao@gmail.com>"); | |
418 | MODULE_LICENSE("GPL"); |