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; | |
e6968a17 | 165 | struct snd_soc_codec *codec = dai->codec; |
7eaae41e BS |
166 | |
167 | /* bit size */ | |
168 | switch (params_format(params)) { | |
169 | case SNDRV_PCM_FORMAT_S16_LE: | |
8ca695f2 | 170 | word_len = AD1836_WORD_LEN_16; |
7eaae41e BS |
171 | break; |
172 | case SNDRV_PCM_FORMAT_S20_3LE: | |
8ca695f2 | 173 | word_len = AD1836_WORD_LEN_20; |
7eaae41e BS |
174 | break; |
175 | case SNDRV_PCM_FORMAT_S24_LE: | |
176 | case SNDRV_PCM_FORMAT_S32_LE: | |
8ca695f2 | 177 | word_len = AD1836_WORD_LEN_24; |
7eaae41e BS |
178 | break; |
179 | } | |
180 | ||
8ca695f2 LPC |
181 | snd_soc_update_bits(codec, AD1836_DAC_CTRL1, AD1836_DAC_WORD_LEN_MASK, |
182 | word_len << AD1836_DAC_WORD_LEN_OFFSET); | |
7eaae41e | 183 | |
8ca695f2 LPC |
184 | snd_soc_update_bits(codec, AD1836_ADC_CTRL2, AD1836_ADC_WORD_LEN_MASK, |
185 | word_len << AD1836_ADC_WORD_OFFSET); | |
7eaae41e BS |
186 | |
187 | return 0; | |
188 | } | |
189 | ||
85e7652d | 190 | static const struct snd_soc_dai_ops ad1836_dai_ops = { |
7eaae41e BS |
191 | .hw_params = ad1836_hw_params, |
192 | .set_fmt = ad1836_set_dai_fmt, | |
193 | }; | |
194 | ||
874ce77b LPC |
195 | #define AD183X_DAI(_name, num_dacs, num_adcs) \ |
196 | { \ | |
197 | .name = _name "-hifi", \ | |
198 | .playback = { \ | |
199 | .stream_name = "Playback", \ | |
200 | .channels_min = 2, \ | |
201 | .channels_max = (num_dacs) * 2, \ | |
202 | .rates = SNDRV_PCM_RATE_48000, \ | |
203 | .formats = SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S16_LE | \ | |
204 | SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S24_LE, \ | |
205 | }, \ | |
206 | .capture = { \ | |
207 | .stream_name = "Capture", \ | |
208 | .channels_min = 2, \ | |
209 | .channels_max = (num_adcs) * 2, \ | |
210 | .rates = SNDRV_PCM_RATE_48000, \ | |
211 | .formats = SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S16_LE | \ | |
212 | SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S24_LE, \ | |
213 | }, \ | |
214 | .ops = &ad1836_dai_ops, \ | |
215 | } | |
216 | ||
217 | static struct snd_soc_dai_driver ad183x_dais[] = { | |
218 | [AD1835] = AD183X_DAI("ad1835", 4, 1), | |
219 | [AD1836] = AD183X_DAI("ad1836", 3, 2), | |
220 | [AD1838] = AD183X_DAI("ad1838", 3, 1), | |
7eaae41e | 221 | }; |
7eaae41e | 222 | |
5d0e7f61 | 223 | #ifdef CONFIG_PM |
84b315ee | 224 | static int ad1836_suspend(struct snd_soc_codec *codec) |
5d0e7f61 BS |
225 | { |
226 | /* reset clock control mode */ | |
227 | return snd_soc_update_bits(codec, AD1836_ADC_CTRL2, | |
228 | AD1836_ADC_SERFMT_MASK, 0); | |
229 | } | |
230 | ||
231 | static int ad1836_resume(struct snd_soc_codec *codec) | |
232 | { | |
233 | /* restore clock control mode */ | |
234 | return snd_soc_update_bits(codec, AD1836_ADC_CTRL2, | |
235 | AD1836_ADC_SERFMT_MASK, AD1836_ADC_AUX); | |
236 | } | |
237 | #else | |
238 | #define ad1836_suspend NULL | |
239 | #define ad1836_resume NULL | |
240 | #endif | |
241 | ||
f0fba2ad | 242 | static int ad1836_probe(struct snd_soc_codec *codec) |
7eaae41e | 243 | { |
f0fba2ad | 244 | struct ad1836_priv *ad1836 = snd_soc_codec_get_drvdata(codec); |
ce6120cc | 245 | struct snd_soc_dapm_context *dapm = &codec->dapm; |
874ce77b | 246 | int num_dacs, num_adcs; |
f0fba2ad | 247 | int ret = 0; |
874ce77b LPC |
248 | int i; |
249 | ||
250 | num_dacs = ad183x_dais[ad1836->type].playback.channels_max / 2; | |
251 | num_adcs = ad183x_dais[ad1836->type].capture.channels_max / 2; | |
7eaae41e | 252 | |
63b62ab0 BS |
253 | ret = snd_soc_codec_set_cache_io(codec, 4, 12, SND_SOC_SPI); |
254 | if (ret < 0) { | |
255 | dev_err(codec->dev, "failed to set cache I/O: %d\n", | |
256 | ret); | |
63b62ab0 BS |
257 | return ret; |
258 | } | |
259 | ||
7eaae41e BS |
260 | /* default setting for ad1836 */ |
261 | /* de-emphasis: 48kHz, power-on dac */ | |
63b62ab0 | 262 | snd_soc_write(codec, AD1836_DAC_CTRL1, 0x300); |
7eaae41e | 263 | /* unmute dac channels */ |
63b62ab0 | 264 | snd_soc_write(codec, AD1836_DAC_CTRL2, 0x0); |
7eaae41e | 265 | /* high-pass filter enable, power-on adc */ |
63b62ab0 | 266 | snd_soc_write(codec, AD1836_ADC_CTRL1, 0x100); |
7eaae41e | 267 | /* unmute adc channles, adc aux mode */ |
63b62ab0 | 268 | snd_soc_write(codec, AD1836_ADC_CTRL2, 0x180); |
7eaae41e | 269 | /* volume */ |
874ce77b LPC |
270 | for (i = 1; i <= num_dacs; ++i) { |
271 | snd_soc_write(codec, AD1836_DAC_L_VOL(i), 0x3FF); | |
272 | snd_soc_write(codec, AD1836_DAC_R_VOL(i), 0x3FF); | |
273 | } | |
274 | ||
275 | if (ad1836->type == AD1836) { | |
276 | /* left/right diff:PGA/MUX */ | |
277 | snd_soc_write(codec, AD1836_ADC_CTRL3, 0x3A); | |
022658be | 278 | ret = snd_soc_add_codec_controls(codec, ad1836_controls, |
f97d0c6d LPC |
279 | ARRAY_SIZE(ad1836_controls)); |
280 | if (ret) | |
281 | return ret; | |
874ce77b LPC |
282 | } else { |
283 | snd_soc_write(codec, AD1836_ADC_CTRL3, 0x00); | |
284 | } | |
285 | ||
022658be | 286 | ret = snd_soc_add_codec_controls(codec, ad183x_dac_controls, num_dacs * 2); |
874ce77b LPC |
287 | if (ret) |
288 | return ret; | |
289 | ||
022658be | 290 | ret = snd_soc_add_codec_controls(codec, ad183x_adc_controls, num_adcs); |
874ce77b LPC |
291 | if (ret) |
292 | return ret; | |
293 | ||
294 | ret = snd_soc_dapm_new_controls(dapm, ad183x_dac_dapm_widgets, num_dacs); | |
295 | if (ret) | |
296 | return ret; | |
297 | ||
298 | ret = snd_soc_dapm_new_controls(dapm, ad183x_adc_dapm_widgets, num_adcs); | |
299 | if (ret) | |
300 | return ret; | |
301 | ||
302 | ret = snd_soc_dapm_add_routes(dapm, ad183x_dac_routes, num_dacs); | |
303 | if (ret) | |
304 | return ret; | |
305 | ||
306 | ret = snd_soc_dapm_add_routes(dapm, ad183x_adc_routes, num_adcs); | |
307 | if (ret) | |
308 | return ret; | |
7eaae41e | 309 | |
7eaae41e BS |
310 | return ret; |
311 | } | |
312 | ||
313 | /* power down chip */ | |
f0fba2ad | 314 | static int ad1836_remove(struct snd_soc_codec *codec) |
7eaae41e | 315 | { |
f0fba2ad | 316 | /* reset clock control mode */ |
2cf03428 LPC |
317 | return snd_soc_update_bits(codec, AD1836_ADC_CTRL2, |
318 | AD1836_ADC_SERFMT_MASK, 0); | |
7eaae41e BS |
319 | } |
320 | ||
f0fba2ad | 321 | static struct snd_soc_codec_driver soc_codec_dev_ad1836 = { |
d4d80f5e MF |
322 | .probe = ad1836_probe, |
323 | .remove = ad1836_remove, | |
5d0e7f61 BS |
324 | .suspend = ad1836_suspend, |
325 | .resume = ad1836_resume, | |
f0fba2ad LG |
326 | .reg_cache_size = AD1836_NUM_REGS, |
327 | .reg_word_size = sizeof(u16), | |
874ce77b LPC |
328 | |
329 | .controls = ad183x_controls, | |
330 | .num_controls = ARRAY_SIZE(ad183x_controls), | |
331 | .dapm_widgets = ad183x_dapm_widgets, | |
332 | .num_dapm_widgets = ARRAY_SIZE(ad183x_dapm_widgets), | |
333 | .dapm_routes = ad183x_dapm_routes, | |
334 | .num_dapm_routes = ARRAY_SIZE(ad183x_dapm_routes), | |
f0fba2ad LG |
335 | }; |
336 | ||
337 | static int __devinit ad1836_spi_probe(struct spi_device *spi) | |
338 | { | |
339 | struct ad1836_priv *ad1836; | |
340 | int ret; | |
341 | ||
6e4f17cb AL |
342 | ad1836 = devm_kzalloc(&spi->dev, sizeof(struct ad1836_priv), |
343 | GFP_KERNEL); | |
f0fba2ad LG |
344 | if (ad1836 == NULL) |
345 | return -ENOMEM; | |
346 | ||
874ce77b LPC |
347 | ad1836->type = spi_get_device_id(spi)->driver_data; |
348 | ||
f0fba2ad | 349 | spi_set_drvdata(spi, ad1836); |
f0fba2ad LG |
350 | |
351 | ret = snd_soc_register_codec(&spi->dev, | |
874ce77b | 352 | &soc_codec_dev_ad1836, &ad183x_dais[ad1836->type], 1); |
f0fba2ad LG |
353 | return ret; |
354 | } | |
355 | ||
356 | static int __devexit ad1836_spi_remove(struct spi_device *spi) | |
357 | { | |
358 | snd_soc_unregister_codec(&spi->dev); | |
f0fba2ad LG |
359 | return 0; |
360 | } | |
6e4f17cb | 361 | |
874ce77b LPC |
362 | static const struct spi_device_id ad1836_ids[] = { |
363 | { "ad1835", AD1835 }, | |
364 | { "ad1836", AD1836 }, | |
365 | { "ad1837", AD1835 }, | |
366 | { "ad1838", AD1838 }, | |
367 | { "ad1839", AD1838 }, | |
368 | { }, | |
369 | }; | |
370 | MODULE_DEVICE_TABLE(spi, ad1836_ids); | |
f0fba2ad LG |
371 | |
372 | static struct spi_driver ad1836_spi_driver = { | |
373 | .driver = { | |
0679059a | 374 | .name = "ad1836", |
f0fba2ad LG |
375 | .owner = THIS_MODULE, |
376 | }, | |
377 | .probe = ad1836_spi_probe, | |
378 | .remove = __devexit_p(ad1836_spi_remove), | |
874ce77b | 379 | .id_table = ad1836_ids, |
7eaae41e | 380 | }; |
7eaae41e BS |
381 | |
382 | static int __init ad1836_init(void) | |
383 | { | |
15e87051 | 384 | return spi_register_driver(&ad1836_spi_driver); |
7eaae41e BS |
385 | } |
386 | module_init(ad1836_init); | |
387 | ||
388 | static void __exit ad1836_exit(void) | |
389 | { | |
390 | spi_unregister_driver(&ad1836_spi_driver); | |
391 | } | |
392 | module_exit(ad1836_exit); | |
393 | ||
394 | MODULE_DESCRIPTION("ASoC ad1836 driver"); | |
395 | MODULE_AUTHOR("Barry Song <21cnbao@gmail.com>"); | |
396 | MODULE_LICENSE("GPL"); |