Commit | Line | Data |
---|---|---|
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 BS |
21 | #include <linux/spi/spi.h> |
22 | #include "ad1836.h" | |
23 | ||
874ce77b LPC |
24 | enum ad1836_type { |
25 | AD1835, | |
26 | AD1836, | |
27 | AD1838, | |
28 | }; | |
29 | ||
7eaae41e BS |
30 | /* codec private data */ |
31 | struct ad1836_priv { | |
874ce77b | 32 | enum ad1836_type type; |
7eaae41e BS |
33 | }; |
34 | ||
7eaae41e BS |
35 | /* |
36 | * AD1836 volume/mute/de-emphasis etc. controls | |
37 | */ | |
38 | static const char *ad1836_deemp[] = {"None", "44.1kHz", "32kHz", "48kHz"}; | |
39 | ||
40 | static const struct soc_enum ad1836_deemp_enum = | |
41 | SOC_ENUM_SINGLE(AD1836_DAC_CTRL1, 8, 4, ad1836_deemp); | |
42 | ||
90bc11d1 LPC |
43 | #define AD1836_DAC_VOLUME(x) \ |
44 | SOC_DOUBLE_R("DAC" #x " Playback Volume", AD1836_DAC_L_VOL(x), \ | |
45 | AD1836_DAC_R_VOL(x), 0, 0x3FF, 0) | |
46 | ||
47 | #define AD1836_DAC_SWITCH(x) \ | |
48 | SOC_DOUBLE("DAC" #x " Playback Switch", AD1836_DAC_CTRL2, \ | |
49 | AD1836_MUTE_LEFT(x), AD1836_MUTE_RIGHT(x), 1, 1) | |
50 | ||
51 | #define AD1836_ADC_SWITCH(x) \ | |
52 | SOC_DOUBLE("ADC" #x " Capture Switch", AD1836_ADC_CTRL2, \ | |
53 | AD1836_MUTE_LEFT(x), AD1836_MUTE_RIGHT(x), 1, 1) | |
54 | ||
874ce77b | 55 | static const struct snd_kcontrol_new ad183x_dac_controls[] = { |
90bc11d1 | 56 | AD1836_DAC_VOLUME(1), |
874ce77b | 57 | AD1836_DAC_SWITCH(1), |
90bc11d1 | 58 | AD1836_DAC_VOLUME(2), |
874ce77b | 59 | AD1836_DAC_SWITCH(2), |
90bc11d1 | 60 | AD1836_DAC_VOLUME(3), |
874ce77b LPC |
61 | AD1836_DAC_SWITCH(3), |
62 | AD1836_DAC_VOLUME(4), | |
63 | AD1836_DAC_SWITCH(4), | |
64 | }; | |
65 | ||
66 | static const struct snd_soc_dapm_widget ad183x_dac_dapm_widgets[] = { | |
67 | SND_SOC_DAPM_OUTPUT("DAC1OUT"), | |
68 | SND_SOC_DAPM_OUTPUT("DAC2OUT"), | |
69 | SND_SOC_DAPM_OUTPUT("DAC3OUT"), | |
70 | SND_SOC_DAPM_OUTPUT("DAC4OUT"), | |
71 | }; | |
72 | ||
73 | static const struct snd_soc_dapm_route ad183x_dac_routes[] = { | |
74 | { "DAC1OUT", NULL, "DAC" }, | |
75 | { "DAC2OUT", NULL, "DAC" }, | |
76 | { "DAC3OUT", NULL, "DAC" }, | |
77 | { "DAC4OUT", NULL, "DAC" }, | |
78 | }; | |
7eaae41e | 79 | |
874ce77b | 80 | static const struct snd_kcontrol_new ad183x_adc_controls[] = { |
90bc11d1 LPC |
81 | AD1836_ADC_SWITCH(1), |
82 | AD1836_ADC_SWITCH(2), | |
874ce77b LPC |
83 | AD1836_ADC_SWITCH(3), |
84 | }; | |
7eaae41e | 85 | |
874ce77b LPC |
86 | static const struct snd_soc_dapm_widget ad183x_adc_dapm_widgets[] = { |
87 | SND_SOC_DAPM_INPUT("ADC1IN"), | |
88 | SND_SOC_DAPM_INPUT("ADC2IN"), | |
89 | }; | |
90 | ||
91 | static const struct snd_soc_dapm_route ad183x_adc_routes[] = { | |
92 | { "ADC", NULL, "ADC1IN" }, | |
93 | { "ADC", NULL, "ADC2IN" }, | |
94 | }; | |
7eaae41e | 95 | |
874ce77b | 96 | static const struct snd_kcontrol_new ad183x_controls[] = { |
7eaae41e BS |
97 | /* ADC high-pass filter */ |
98 | SOC_SINGLE("ADC High Pass Filter Switch", AD1836_ADC_CTRL1, | |
99 | AD1836_ADC_HIGHPASS_FILTER, 1, 0), | |
100 | ||
101 | /* DAC de-emphasis */ | |
102 | SOC_ENUM("Playback Deemphasis", ad1836_deemp_enum), | |
103 | }; | |
104 | ||
874ce77b | 105 | static const struct snd_soc_dapm_widget ad183x_dapm_widgets[] = { |
7eaae41e BS |
106 | SND_SOC_DAPM_DAC("DAC", "Playback", AD1836_DAC_CTRL1, |
107 | AD1836_DAC_POWERDOWN, 1), | |
108 | SND_SOC_DAPM_ADC("ADC", "Capture", SND_SOC_NOPM, 0, 0), | |
109 | SND_SOC_DAPM_SUPPLY("ADC_PWR", AD1836_ADC_CTRL1, | |
110 | AD1836_ADC_POWERDOWN, 1, NULL, 0), | |
7eaae41e BS |
111 | }; |
112 | ||
874ce77b | 113 | static const struct snd_soc_dapm_route ad183x_dapm_routes[] = { |
7eaae41e BS |
114 | { "DAC", NULL, "ADC_PWR" }, |
115 | { "ADC", NULL, "ADC_PWR" }, | |
7eaae41e BS |
116 | }; |
117 | ||
f97d0c6d LPC |
118 | static const DECLARE_TLV_DB_SCALE(ad1836_in_tlv, 0, 300, 0); |
119 | ||
120 | static const struct snd_kcontrol_new ad1836_controls[] = { | |
0c8e2917 | 121 | SOC_DOUBLE_TLV("ADC2 Capture Volume", AD1836_ADC_CTRL1, 3, 0, 4, 0, |
f97d0c6d LPC |
122 | ad1836_in_tlv), |
123 | }; | |
124 | ||
7eaae41e BS |
125 | /* |
126 | * DAI ops entries | |
127 | */ | |
128 | ||
129 | static int ad1836_set_dai_fmt(struct snd_soc_dai *codec_dai, | |
130 | unsigned int fmt) | |
131 | { | |
132 | switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { | |
133 | /* at present, we support adc aux mode to interface with | |
134 | * blackfin sport tdm mode | |
135 | */ | |
136 | case SND_SOC_DAIFMT_DSP_A: | |
137 | break; | |
138 | default: | |
139 | return -EINVAL; | |
140 | } | |
141 | ||
142 | switch (fmt & SND_SOC_DAIFMT_INV_MASK) { | |
143 | case SND_SOC_DAIFMT_IB_IF: | |
144 | break; | |
145 | default: | |
146 | return -EINVAL; | |
147 | } | |
148 | ||
149 | switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { | |
150 | /* ALCLK,ABCLK are both output, AD1836 can only be master */ | |
151 | case SND_SOC_DAIFMT_CBM_CFM: | |
152 | break; | |
153 | default: | |
154 | return -EINVAL; | |
155 | } | |
156 | ||
157 | return 0; | |
158 | } | |
159 | ||
160 | static int ad1836_hw_params(struct snd_pcm_substream *substream, | |
161 | struct snd_pcm_hw_params *params, | |
162 | struct snd_soc_dai *dai) | |
163 | { | |
164 | int word_len = 0; | |
165 | ||
166 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad | 167 | struct snd_soc_codec *codec = rtd->codec; |
7eaae41e BS |
168 | |
169 | /* bit size */ | |
170 | switch (params_format(params)) { | |
171 | case SNDRV_PCM_FORMAT_S16_LE: | |
8ca695f2 | 172 | word_len = AD1836_WORD_LEN_16; |
7eaae41e BS |
173 | break; |
174 | case SNDRV_PCM_FORMAT_S20_3LE: | |
8ca695f2 | 175 | word_len = AD1836_WORD_LEN_20; |
7eaae41e BS |
176 | break; |
177 | case SNDRV_PCM_FORMAT_S24_LE: | |
178 | case SNDRV_PCM_FORMAT_S32_LE: | |
8ca695f2 | 179 | word_len = AD1836_WORD_LEN_24; |
7eaae41e BS |
180 | break; |
181 | } | |
182 | ||
8ca695f2 LPC |
183 | snd_soc_update_bits(codec, AD1836_DAC_CTRL1, AD1836_DAC_WORD_LEN_MASK, |
184 | word_len << AD1836_DAC_WORD_LEN_OFFSET); | |
7eaae41e | 185 | |
8ca695f2 LPC |
186 | snd_soc_update_bits(codec, AD1836_ADC_CTRL2, AD1836_ADC_WORD_LEN_MASK, |
187 | word_len << AD1836_ADC_WORD_OFFSET); | |
7eaae41e BS |
188 | |
189 | return 0; | |
190 | } | |
191 | ||
84549d23 | 192 | #ifdef CONFIG_PM |
f0fba2ad | 193 | static int ad1836_soc_suspend(struct snd_soc_codec *codec, |
84549d23 BS |
194 | pm_message_t state) |
195 | { | |
84549d23 | 196 | /* reset clock control mode */ |
2cf03428 LPC |
197 | return snd_soc_update_bits(codec, AD1836_ADC_CTRL2, |
198 | AD1836_ADC_SERFMT_MASK, 0); | |
84549d23 BS |
199 | } |
200 | ||
f0fba2ad | 201 | static int ad1836_soc_resume(struct snd_soc_codec *codec) |
84549d23 | 202 | { |
84549d23 | 203 | /* restore clock control mode */ |
2cf03428 LPC |
204 | return snd_soc_update_bits(codec, AD1836_ADC_CTRL2, |
205 | AD1836_ADC_SERFMT_MASK, AD1836_ADC_AUX); | |
84549d23 BS |
206 | } |
207 | #else | |
208 | #define ad1836_soc_suspend NULL | |
209 | #define ad1836_soc_resume NULL | |
210 | #endif | |
211 | ||
7eaae41e BS |
212 | static struct snd_soc_dai_ops ad1836_dai_ops = { |
213 | .hw_params = ad1836_hw_params, | |
214 | .set_fmt = ad1836_set_dai_fmt, | |
215 | }; | |
216 | ||
874ce77b LPC |
217 | #define AD183X_DAI(_name, num_dacs, num_adcs) \ |
218 | { \ | |
219 | .name = _name "-hifi", \ | |
220 | .playback = { \ | |
221 | .stream_name = "Playback", \ | |
222 | .channels_min = 2, \ | |
223 | .channels_max = (num_dacs) * 2, \ | |
224 | .rates = SNDRV_PCM_RATE_48000, \ | |
225 | .formats = SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S16_LE | \ | |
226 | SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S24_LE, \ | |
227 | }, \ | |
228 | .capture = { \ | |
229 | .stream_name = "Capture", \ | |
230 | .channels_min = 2, \ | |
231 | .channels_max = (num_adcs) * 2, \ | |
232 | .rates = SNDRV_PCM_RATE_48000, \ | |
233 | .formats = SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S16_LE | \ | |
234 | SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S24_LE, \ | |
235 | }, \ | |
236 | .ops = &ad1836_dai_ops, \ | |
237 | } | |
238 | ||
239 | static struct snd_soc_dai_driver ad183x_dais[] = { | |
240 | [AD1835] = AD183X_DAI("ad1835", 4, 1), | |
241 | [AD1836] = AD183X_DAI("ad1836", 3, 2), | |
242 | [AD1838] = AD183X_DAI("ad1838", 3, 1), | |
7eaae41e | 243 | }; |
7eaae41e | 244 | |
f0fba2ad | 245 | static int ad1836_probe(struct snd_soc_codec *codec) |
7eaae41e | 246 | { |
f0fba2ad | 247 | struct ad1836_priv *ad1836 = snd_soc_codec_get_drvdata(codec); |
ce6120cc | 248 | struct snd_soc_dapm_context *dapm = &codec->dapm; |
874ce77b | 249 | int num_dacs, num_adcs; |
f0fba2ad | 250 | int ret = 0; |
874ce77b LPC |
251 | int i; |
252 | ||
253 | num_dacs = ad183x_dais[ad1836->type].playback.channels_max / 2; | |
254 | num_adcs = ad183x_dais[ad1836->type].capture.channels_max / 2; | |
7eaae41e | 255 | |
63b62ab0 BS |
256 | ret = snd_soc_codec_set_cache_io(codec, 4, 12, SND_SOC_SPI); |
257 | if (ret < 0) { | |
258 | dev_err(codec->dev, "failed to set cache I/O: %d\n", | |
259 | ret); | |
63b62ab0 BS |
260 | return ret; |
261 | } | |
262 | ||
7eaae41e BS |
263 | /* default setting for ad1836 */ |
264 | /* de-emphasis: 48kHz, power-on dac */ | |
63b62ab0 | 265 | snd_soc_write(codec, AD1836_DAC_CTRL1, 0x300); |
7eaae41e | 266 | /* unmute dac channels */ |
63b62ab0 | 267 | snd_soc_write(codec, AD1836_DAC_CTRL2, 0x0); |
7eaae41e | 268 | /* high-pass filter enable, power-on adc */ |
63b62ab0 | 269 | snd_soc_write(codec, AD1836_ADC_CTRL1, 0x100); |
7eaae41e | 270 | /* unmute adc channles, adc aux mode */ |
63b62ab0 | 271 | snd_soc_write(codec, AD1836_ADC_CTRL2, 0x180); |
7eaae41e | 272 | /* volume */ |
874ce77b LPC |
273 | for (i = 1; i <= num_dacs; ++i) { |
274 | snd_soc_write(codec, AD1836_DAC_L_VOL(i), 0x3FF); | |
275 | snd_soc_write(codec, AD1836_DAC_R_VOL(i), 0x3FF); | |
276 | } | |
277 | ||
278 | if (ad1836->type == AD1836) { | |
279 | /* left/right diff:PGA/MUX */ | |
280 | snd_soc_write(codec, AD1836_ADC_CTRL3, 0x3A); | |
f97d0c6d LPC |
281 | ret = snd_soc_add_controls(codec, ad1836_controls, |
282 | ARRAY_SIZE(ad1836_controls)); | |
283 | if (ret) | |
284 | return ret; | |
874ce77b LPC |
285 | } else { |
286 | snd_soc_write(codec, AD1836_ADC_CTRL3, 0x00); | |
287 | } | |
288 | ||
289 | ret = snd_soc_add_controls(codec, ad183x_dac_controls, num_dacs * 2); | |
290 | if (ret) | |
291 | return ret; | |
292 | ||
293 | ret = snd_soc_add_controls(codec, ad183x_adc_controls, num_adcs); | |
294 | if (ret) | |
295 | return ret; | |
296 | ||
297 | ret = snd_soc_dapm_new_controls(dapm, ad183x_dac_dapm_widgets, num_dacs); | |
298 | if (ret) | |
299 | return ret; | |
300 | ||
301 | ret = snd_soc_dapm_new_controls(dapm, ad183x_adc_dapm_widgets, num_adcs); | |
302 | if (ret) | |
303 | return ret; | |
304 | ||
305 | ret = snd_soc_dapm_add_routes(dapm, ad183x_dac_routes, num_dacs); | |
306 | if (ret) | |
307 | return ret; | |
308 | ||
309 | ret = snd_soc_dapm_add_routes(dapm, ad183x_adc_routes, num_adcs); | |
310 | if (ret) | |
311 | return ret; | |
7eaae41e | 312 | |
7eaae41e BS |
313 | return ret; |
314 | } | |
315 | ||
316 | /* power down chip */ | |
f0fba2ad | 317 | static int ad1836_remove(struct snd_soc_codec *codec) |
7eaae41e | 318 | { |
f0fba2ad | 319 | /* reset clock control mode */ |
2cf03428 LPC |
320 | return snd_soc_update_bits(codec, AD1836_ADC_CTRL2, |
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, | |
84549d23 BS |
327 | .suspend = ad1836_soc_suspend, |
328 | .resume = ad1836_soc_resume, | |
f0fba2ad LG |
329 | .reg_cache_size = AD1836_NUM_REGS, |
330 | .reg_word_size = sizeof(u16), | |
874ce77b LPC |
331 | |
332 | .controls = ad183x_controls, | |
333 | .num_controls = ARRAY_SIZE(ad183x_controls), | |
334 | .dapm_widgets = ad183x_dapm_widgets, | |
335 | .num_dapm_widgets = ARRAY_SIZE(ad183x_dapm_widgets), | |
336 | .dapm_routes = ad183x_dapm_routes, | |
337 | .num_dapm_routes = ARRAY_SIZE(ad183x_dapm_routes), | |
f0fba2ad LG |
338 | }; |
339 | ||
340 | static int __devinit ad1836_spi_probe(struct spi_device *spi) | |
341 | { | |
342 | struct ad1836_priv *ad1836; | |
343 | int ret; | |
344 | ||
345 | ad1836 = kzalloc(sizeof(struct ad1836_priv), GFP_KERNEL); | |
346 | if (ad1836 == NULL) | |
347 | return -ENOMEM; | |
348 | ||
874ce77b LPC |
349 | ad1836->type = spi_get_device_id(spi)->driver_data; |
350 | ||
f0fba2ad | 351 | spi_set_drvdata(spi, ad1836); |
f0fba2ad LG |
352 | |
353 | ret = snd_soc_register_codec(&spi->dev, | |
874ce77b | 354 | &soc_codec_dev_ad1836, &ad183x_dais[ad1836->type], 1); |
f0fba2ad LG |
355 | if (ret < 0) |
356 | kfree(ad1836); | |
357 | return ret; | |
358 | } | |
359 | ||
360 | static int __devexit ad1836_spi_remove(struct spi_device *spi) | |
361 | { | |
362 | snd_soc_unregister_codec(&spi->dev); | |
363 | kfree(spi_get_drvdata(spi)); | |
364 | return 0; | |
365 | } | |
874ce77b LPC |
366 | static const struct spi_device_id ad1836_ids[] = { |
367 | { "ad1835", AD1835 }, | |
368 | { "ad1836", AD1836 }, | |
369 | { "ad1837", AD1835 }, | |
370 | { "ad1838", AD1838 }, | |
371 | { "ad1839", AD1838 }, | |
372 | { }, | |
373 | }; | |
374 | MODULE_DEVICE_TABLE(spi, ad1836_ids); | |
f0fba2ad LG |
375 | |
376 | static struct spi_driver ad1836_spi_driver = { | |
377 | .driver = { | |
378 | .name = "ad1836-codec", | |
379 | .owner = THIS_MODULE, | |
380 | }, | |
381 | .probe = ad1836_spi_probe, | |
382 | .remove = __devexit_p(ad1836_spi_remove), | |
874ce77b | 383 | .id_table = ad1836_ids, |
7eaae41e | 384 | }; |
7eaae41e BS |
385 | |
386 | static int __init ad1836_init(void) | |
387 | { | |
15e87051 | 388 | return spi_register_driver(&ad1836_spi_driver); |
7eaae41e BS |
389 | } |
390 | module_init(ad1836_init); | |
391 | ||
392 | static void __exit ad1836_exit(void) | |
393 | { | |
394 | spi_unregister_driver(&ad1836_spi_driver); | |
395 | } | |
396 | module_exit(ad1836_exit); | |
397 | ||
398 | MODULE_DESCRIPTION("ASoC ad1836 driver"); | |
399 | MODULE_AUTHOR("Barry Song <21cnbao@gmail.com>"); | |
400 | MODULE_LICENSE("GPL"); |