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a1533d94 BS |
1 | /* |
2 | * AD193X Audio Codec driver supporting AD1936/7/8/9 | |
3 | * | |
4 | * Copyright 2010 Analog Devices Inc. | |
5 | * | |
6 | * Licensed under the GPL-2 or later. | |
7 | */ | |
8 | ||
9 | #include <linux/init.h> | |
10 | #include <linux/module.h> | |
11 | #include <linux/kernel.h> | |
12 | #include <linux/device.h> | |
13 | #include <linux/i2c.h> | |
14 | #include <linux/spi/spi.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> | |
21 | #include <sound/soc-dapm.h> | |
22 | #include "ad193x.h" | |
23 | ||
24 | /* codec private data */ | |
25 | struct ad193x_priv { | |
26 | struct snd_soc_codec codec; | |
27 | u8 reg_cache[AD193X_NUM_REGS]; | |
28 | }; | |
29 | ||
30 | /* ad193x register cache & default register settings */ | |
31 | static const u8 ad193x_reg[AD193X_NUM_REGS] = { | |
32 | 0, 0, 0, 0, 0, 0, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0, 0, 0, | |
33 | }; | |
34 | ||
35 | static struct snd_soc_codec *ad193x_codec; | |
36 | struct snd_soc_codec_device soc_codec_dev_ad193x; | |
37 | static int ad193x_register(struct ad193x_priv *ad193x, int bus_type); | |
38 | static void ad193x_unregister(struct ad193x_priv *ad193x); | |
39 | ||
40 | /* | |
41 | * AD193X volume/mute/de-emphasis etc. controls | |
42 | */ | |
43 | static const char *ad193x_deemp[] = {"None", "48kHz", "44.1kHz", "32kHz"}; | |
44 | ||
45 | static const struct soc_enum ad193x_deemp_enum = | |
46 | SOC_ENUM_SINGLE(AD193X_DAC_CTRL2, 1, 4, ad193x_deemp); | |
47 | ||
48 | static const struct snd_kcontrol_new ad193x_snd_controls[] = { | |
49 | /* DAC volume control */ | |
50 | SOC_DOUBLE_R("DAC1 Volume", AD193X_DAC_L1_VOL, | |
51 | AD193X_DAC_R1_VOL, 0, 0xFF, 1), | |
52 | SOC_DOUBLE_R("DAC2 Volume", AD193X_DAC_L2_VOL, | |
53 | AD193X_DAC_R2_VOL, 0, 0xFF, 1), | |
54 | SOC_DOUBLE_R("DAC3 Volume", AD193X_DAC_L3_VOL, | |
55 | AD193X_DAC_R3_VOL, 0, 0xFF, 1), | |
56 | SOC_DOUBLE_R("DAC4 Volume", AD193X_DAC_L4_VOL, | |
57 | AD193X_DAC_R4_VOL, 0, 0xFF, 1), | |
58 | ||
59 | /* ADC switch control */ | |
60 | SOC_DOUBLE("ADC1 Switch", AD193X_ADC_CTRL0, AD193X_ADCL1_MUTE, | |
61 | AD193X_ADCR1_MUTE, 1, 1), | |
62 | SOC_DOUBLE("ADC2 Switch", AD193X_ADC_CTRL0, AD193X_ADCL2_MUTE, | |
63 | AD193X_ADCR2_MUTE, 1, 1), | |
64 | ||
65 | /* DAC switch control */ | |
66 | SOC_DOUBLE("DAC1 Switch", AD193X_DAC_CHNL_MUTE, AD193X_DACL1_MUTE, | |
67 | AD193X_DACR1_MUTE, 1, 1), | |
68 | SOC_DOUBLE("DAC2 Switch", AD193X_DAC_CHNL_MUTE, AD193X_DACL2_MUTE, | |
69 | AD193X_DACR2_MUTE, 1, 1), | |
70 | SOC_DOUBLE("DAC3 Switch", AD193X_DAC_CHNL_MUTE, AD193X_DACL3_MUTE, | |
71 | AD193X_DACR3_MUTE, 1, 1), | |
72 | SOC_DOUBLE("DAC4 Switch", AD193X_DAC_CHNL_MUTE, AD193X_DACL4_MUTE, | |
73 | AD193X_DACR4_MUTE, 1, 1), | |
74 | ||
75 | /* ADC high-pass filter */ | |
76 | SOC_SINGLE("ADC High Pass Filter Switch", AD193X_ADC_CTRL0, | |
77 | AD193X_ADC_HIGHPASS_FILTER, 1, 0), | |
78 | ||
79 | /* DAC de-emphasis */ | |
80 | SOC_ENUM("Playback Deemphasis", ad193x_deemp_enum), | |
81 | }; | |
82 | ||
83 | static const struct snd_soc_dapm_widget ad193x_dapm_widgets[] = { | |
84 | SND_SOC_DAPM_DAC("DAC", "Playback", AD193X_DAC_CTRL0, 0, 1), | |
85 | SND_SOC_DAPM_ADC("ADC", "Capture", SND_SOC_NOPM, 0, 0), | |
86 | SND_SOC_DAPM_SUPPLY("PLL_PWR", AD193X_PLL_CLK_CTRL0, 0, 1, NULL, 0), | |
87 | SND_SOC_DAPM_SUPPLY("ADC_PWR", AD193X_ADC_CTRL0, 0, 1, NULL, 0), | |
88 | SND_SOC_DAPM_OUTPUT("DAC1OUT"), | |
89 | SND_SOC_DAPM_OUTPUT("DAC2OUT"), | |
90 | SND_SOC_DAPM_OUTPUT("DAC3OUT"), | |
91 | SND_SOC_DAPM_OUTPUT("DAC4OUT"), | |
92 | SND_SOC_DAPM_INPUT("ADC1IN"), | |
93 | SND_SOC_DAPM_INPUT("ADC2IN"), | |
94 | }; | |
95 | ||
96 | static const struct snd_soc_dapm_route audio_paths[] = { | |
97 | { "DAC", NULL, "PLL_PWR" }, | |
98 | { "ADC", NULL, "PLL_PWR" }, | |
99 | { "DAC", NULL, "ADC_PWR" }, | |
100 | { "ADC", NULL, "ADC_PWR" }, | |
101 | { "DAC1OUT", "DAC1 Switch", "DAC" }, | |
102 | { "DAC2OUT", "DAC2 Switch", "DAC" }, | |
103 | { "DAC3OUT", "DAC3 Switch", "DAC" }, | |
104 | { "DAC4OUT", "DAC4 Switch", "DAC" }, | |
105 | { "ADC", "ADC1 Switch", "ADC1IN" }, | |
106 | { "ADC", "ADC2 Switch", "ADC2IN" }, | |
107 | }; | |
108 | ||
109 | /* | |
110 | * DAI ops entries | |
111 | */ | |
112 | ||
113 | static int ad193x_mute(struct snd_soc_dai *dai, int mute) | |
114 | { | |
115 | struct snd_soc_codec *codec = dai->codec; | |
116 | int reg; | |
117 | ||
118 | reg = snd_soc_read(codec, AD193X_DAC_CTRL2); | |
119 | reg = (mute > 0) ? reg | AD193X_DAC_MASTER_MUTE : reg & | |
120 | (~AD193X_DAC_MASTER_MUTE); | |
121 | snd_soc_write(codec, AD193X_DAC_CTRL2, reg); | |
122 | ||
123 | return 0; | |
124 | } | |
125 | ||
126 | static int ad193x_set_tdm_slot(struct snd_soc_dai *dai, unsigned int tx_mask, | |
127 | unsigned int rx_mask, int slots, int width) | |
128 | { | |
129 | struct snd_soc_codec *codec = dai->codec; | |
130 | int dac_reg = snd_soc_read(codec, AD193X_DAC_CTRL1); | |
131 | int adc_reg = snd_soc_read(codec, AD193X_ADC_CTRL2); | |
132 | ||
133 | dac_reg &= ~AD193X_DAC_CHAN_MASK; | |
134 | adc_reg &= ~AD193X_ADC_CHAN_MASK; | |
135 | ||
136 | switch (slots) { | |
137 | case 2: | |
138 | dac_reg |= AD193X_DAC_2_CHANNELS << AD193X_DAC_CHAN_SHFT; | |
139 | adc_reg |= AD193X_ADC_2_CHANNELS << AD193X_ADC_CHAN_SHFT; | |
140 | break; | |
141 | case 4: | |
142 | dac_reg |= AD193X_DAC_4_CHANNELS << AD193X_DAC_CHAN_SHFT; | |
143 | adc_reg |= AD193X_ADC_4_CHANNELS << AD193X_ADC_CHAN_SHFT; | |
144 | break; | |
145 | case 8: | |
146 | dac_reg |= AD193X_DAC_8_CHANNELS << AD193X_DAC_CHAN_SHFT; | |
147 | adc_reg |= AD193X_ADC_8_CHANNELS << AD193X_ADC_CHAN_SHFT; | |
148 | break; | |
149 | case 16: | |
150 | dac_reg |= AD193X_DAC_16_CHANNELS << AD193X_DAC_CHAN_SHFT; | |
151 | adc_reg |= AD193X_ADC_16_CHANNELS << AD193X_ADC_CHAN_SHFT; | |
152 | break; | |
153 | default: | |
154 | return -EINVAL; | |
155 | } | |
156 | ||
157 | snd_soc_write(codec, AD193X_DAC_CTRL1, dac_reg); | |
158 | snd_soc_write(codec, AD193X_ADC_CTRL2, adc_reg); | |
159 | ||
160 | return 0; | |
161 | } | |
162 | ||
163 | static int ad193x_set_dai_fmt(struct snd_soc_dai *codec_dai, | |
164 | unsigned int fmt) | |
165 | { | |
166 | struct snd_soc_codec *codec = codec_dai->codec; | |
167 | int adc_reg, dac_reg; | |
168 | ||
169 | adc_reg = snd_soc_read(codec, AD193X_ADC_CTRL2); | |
170 | dac_reg = snd_soc_read(codec, AD193X_DAC_CTRL1); | |
171 | ||
172 | /* At present, the driver only support AUX ADC mode(SND_SOC_DAIFMT_I2S | |
173 | * with TDM) and ADC&DAC TDM mode(SND_SOC_DAIFMT_DSP_A) | |
174 | */ | |
175 | switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { | |
176 | case SND_SOC_DAIFMT_I2S: | |
177 | adc_reg &= ~AD193X_ADC_SERFMT_MASK; | |
178 | adc_reg |= AD193X_ADC_SERFMT_TDM; | |
179 | break; | |
180 | case SND_SOC_DAIFMT_DSP_A: | |
181 | adc_reg &= ~AD193X_ADC_SERFMT_MASK; | |
182 | adc_reg |= AD193X_ADC_SERFMT_AUX; | |
183 | break; | |
184 | default: | |
185 | return -EINVAL; | |
186 | } | |
187 | ||
188 | switch (fmt & SND_SOC_DAIFMT_INV_MASK) { | |
189 | case SND_SOC_DAIFMT_NB_NF: /* normal bit clock + frame */ | |
190 | adc_reg &= ~AD193X_ADC_LEFT_HIGH; | |
191 | adc_reg &= ~AD193X_ADC_BCLK_INV; | |
192 | dac_reg &= ~AD193X_DAC_LEFT_HIGH; | |
193 | dac_reg &= ~AD193X_DAC_BCLK_INV; | |
194 | break; | |
195 | case SND_SOC_DAIFMT_NB_IF: /* normal bclk + invert frm */ | |
196 | adc_reg |= AD193X_ADC_LEFT_HIGH; | |
197 | adc_reg &= ~AD193X_ADC_BCLK_INV; | |
198 | dac_reg |= AD193X_DAC_LEFT_HIGH; | |
199 | dac_reg &= ~AD193X_DAC_BCLK_INV; | |
200 | break; | |
201 | case SND_SOC_DAIFMT_IB_NF: /* invert bclk + normal frm */ | |
202 | adc_reg &= ~AD193X_ADC_LEFT_HIGH; | |
203 | adc_reg |= AD193X_ADC_BCLK_INV; | |
204 | dac_reg &= ~AD193X_DAC_LEFT_HIGH; | |
205 | dac_reg |= AD193X_DAC_BCLK_INV; | |
206 | break; | |
207 | ||
208 | case SND_SOC_DAIFMT_IB_IF: /* invert bclk + frm */ | |
209 | adc_reg |= AD193X_ADC_LEFT_HIGH; | |
210 | adc_reg |= AD193X_ADC_BCLK_INV; | |
211 | dac_reg |= AD193X_DAC_LEFT_HIGH; | |
212 | dac_reg |= AD193X_DAC_BCLK_INV; | |
213 | break; | |
214 | default: | |
215 | return -EINVAL; | |
216 | } | |
217 | ||
218 | switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { | |
219 | case SND_SOC_DAIFMT_CBM_CFM: /* codec clk & frm master */ | |
220 | adc_reg |= AD193X_ADC_LCR_MASTER; | |
221 | adc_reg |= AD193X_ADC_BCLK_MASTER; | |
222 | dac_reg |= AD193X_DAC_LCR_MASTER; | |
223 | dac_reg |= AD193X_DAC_BCLK_MASTER; | |
224 | break; | |
225 | case SND_SOC_DAIFMT_CBS_CFM: /* codec clk slave & frm master */ | |
226 | adc_reg |= AD193X_ADC_LCR_MASTER; | |
227 | adc_reg &= ~AD193X_ADC_BCLK_MASTER; | |
228 | dac_reg |= AD193X_DAC_LCR_MASTER; | |
229 | dac_reg &= ~AD193X_DAC_BCLK_MASTER; | |
230 | break; | |
231 | case SND_SOC_DAIFMT_CBM_CFS: /* codec clk master & frame slave */ | |
232 | adc_reg &= ~AD193X_ADC_LCR_MASTER; | |
233 | adc_reg |= AD193X_ADC_BCLK_MASTER; | |
234 | dac_reg &= ~AD193X_DAC_LCR_MASTER; | |
235 | dac_reg |= AD193X_DAC_BCLK_MASTER; | |
236 | break; | |
237 | case SND_SOC_DAIFMT_CBS_CFS: /* codec clk & frm slave */ | |
238 | adc_reg &= ~AD193X_ADC_LCR_MASTER; | |
239 | adc_reg &= ~AD193X_ADC_BCLK_MASTER; | |
240 | dac_reg &= ~AD193X_DAC_LCR_MASTER; | |
241 | dac_reg &= ~AD193X_DAC_BCLK_MASTER; | |
242 | break; | |
243 | default: | |
244 | return -EINVAL; | |
245 | } | |
246 | ||
247 | snd_soc_write(codec, AD193X_ADC_CTRL2, adc_reg); | |
248 | snd_soc_write(codec, AD193X_DAC_CTRL1, dac_reg); | |
249 | ||
250 | return 0; | |
251 | } | |
252 | ||
253 | static int ad193x_hw_params(struct snd_pcm_substream *substream, | |
254 | struct snd_pcm_hw_params *params, | |
255 | struct snd_soc_dai *dai) | |
256 | { | |
257 | int word_len = 0, reg = 0; | |
258 | ||
259 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
260 | struct snd_soc_device *socdev = rtd->socdev; | |
261 | struct snd_soc_codec *codec = socdev->card->codec; | |
262 | ||
263 | /* bit size */ | |
264 | switch (params_format(params)) { | |
265 | case SNDRV_PCM_FORMAT_S16_LE: | |
266 | word_len = 3; | |
267 | break; | |
268 | case SNDRV_PCM_FORMAT_S20_3LE: | |
269 | word_len = 1; | |
270 | break; | |
271 | case SNDRV_PCM_FORMAT_S24_LE: | |
272 | case SNDRV_PCM_FORMAT_S32_LE: | |
273 | word_len = 0; | |
274 | break; | |
275 | } | |
276 | ||
277 | reg = snd_soc_read(codec, AD193X_DAC_CTRL2); | |
278 | reg = (reg & (~AD193X_DAC_WORD_LEN_MASK)) | word_len; | |
279 | snd_soc_write(codec, AD193X_DAC_CTRL2, reg); | |
280 | ||
281 | reg = snd_soc_read(codec, AD193X_ADC_CTRL1); | |
282 | reg = (reg & (~AD193X_ADC_WORD_LEN_MASK)) | word_len; | |
283 | snd_soc_write(codec, AD193X_ADC_CTRL1, reg); | |
284 | ||
285 | return 0; | |
286 | } | |
287 | ||
cffce322 | 288 | static int ad193x_bus_probe(struct device *dev, void *ctrl_data, int bus_type) |
a1533d94 BS |
289 | { |
290 | struct snd_soc_codec *codec; | |
291 | struct ad193x_priv *ad193x; | |
292 | ||
293 | ad193x = kzalloc(sizeof(struct ad193x_priv), GFP_KERNEL); | |
294 | if (ad193x == NULL) | |
295 | return -ENOMEM; | |
296 | ||
297 | codec = &ad193x->codec; | |
298 | codec->control_data = ctrl_data; | |
299 | codec->dev = dev; | |
300 | ||
301 | dev_set_drvdata(dev, ad193x); | |
302 | ||
303 | return ad193x_register(ad193x, bus_type); | |
304 | } | |
a1533d94 | 305 | |
cffce322 | 306 | static int ad193x_bus_remove(struct device *dev) |
a1533d94 BS |
307 | { |
308 | struct ad193x_priv *ad193x = dev_get_drvdata(dev); | |
309 | ||
310 | ad193x_unregister(ad193x); | |
311 | return 0; | |
312 | } | |
a1533d94 BS |
313 | |
314 | static struct snd_soc_dai_ops ad193x_dai_ops = { | |
315 | .hw_params = ad193x_hw_params, | |
316 | .digital_mute = ad193x_mute, | |
317 | .set_tdm_slot = ad193x_set_tdm_slot, | |
318 | .set_fmt = ad193x_set_dai_fmt, | |
319 | }; | |
320 | ||
321 | /* codec DAI instance */ | |
322 | struct snd_soc_dai ad193x_dai = { | |
323 | .name = "AD193X", | |
324 | .playback = { | |
325 | .stream_name = "Playback", | |
326 | .channels_min = 2, | |
327 | .channels_max = 8, | |
328 | .rates = SNDRV_PCM_RATE_48000, | |
329 | .formats = SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S16_LE | | |
330 | SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S24_LE, | |
331 | }, | |
332 | .capture = { | |
333 | .stream_name = "Capture", | |
334 | .channels_min = 2, | |
335 | .channels_max = 4, | |
336 | .rates = SNDRV_PCM_RATE_48000, | |
337 | .formats = SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S16_LE | | |
338 | SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S24_LE, | |
339 | }, | |
340 | .ops = &ad193x_dai_ops, | |
341 | }; | |
342 | EXPORT_SYMBOL_GPL(ad193x_dai); | |
343 | ||
344 | static int ad193x_register(struct ad193x_priv *ad193x, int bus_type) | |
345 | { | |
346 | int ret; | |
347 | struct snd_soc_codec *codec = &ad193x->codec; | |
348 | ||
349 | if (ad193x_codec) { | |
350 | dev_err(codec->dev, "Another ad193x is registered\n"); | |
351 | return -EINVAL; | |
352 | } | |
353 | ||
354 | mutex_init(&codec->mutex); | |
355 | codec->private_data = ad193x; | |
356 | codec->reg_cache = ad193x->reg_cache; | |
357 | codec->reg_cache_size = AD193X_NUM_REGS; | |
358 | codec->name = "AD193X"; | |
359 | codec->owner = THIS_MODULE; | |
360 | codec->dai = &ad193x_dai; | |
361 | codec->num_dai = 1; | |
362 | INIT_LIST_HEAD(&codec->dapm_widgets); | |
363 | INIT_LIST_HEAD(&codec->dapm_paths); | |
364 | ||
365 | ad193x_dai.dev = codec->dev; | |
366 | ad193x_codec = codec; | |
367 | ||
368 | memcpy(codec->reg_cache, ad193x_reg, AD193X_NUM_REGS); | |
369 | ||
370 | if (bus_type == SND_SOC_I2C) | |
371 | ret = snd_soc_codec_set_cache_io(codec, 8, 8, bus_type); | |
372 | else | |
373 | ret = snd_soc_codec_set_cache_io(codec, 16, 8, bus_type); | |
374 | if (ret < 0) { | |
375 | dev_err(codec->dev, "failed to set cache I/O: %d\n", | |
376 | ret); | |
377 | kfree(ad193x); | |
378 | return ret; | |
379 | } | |
380 | ||
381 | /* default setting for ad193x */ | |
382 | ||
383 | /* unmute dac channels */ | |
384 | snd_soc_write(codec, AD193X_DAC_CHNL_MUTE, 0x0); | |
385 | /* de-emphasis: 48kHz, powedown dac */ | |
386 | snd_soc_write(codec, AD193X_DAC_CTRL2, 0x1A); | |
387 | /* powerdown dac, dac in tdm mode */ | |
388 | snd_soc_write(codec, AD193X_DAC_CTRL0, 0x41); | |
389 | /* high-pass filter enable */ | |
390 | snd_soc_write(codec, AD193X_ADC_CTRL0, 0x3); | |
391 | /* sata delay=1, adc aux mode */ | |
392 | snd_soc_write(codec, AD193X_ADC_CTRL1, 0x43); | |
393 | /* pll input: mclki/xi */ | |
394 | snd_soc_write(codec, AD193X_PLL_CLK_CTRL0, 0x99); /* mclk=24.576Mhz: 0x9D; mclk=12.288Mhz: 0x99 */ | |
395 | snd_soc_write(codec, AD193X_PLL_CLK_CTRL1, 0x04); | |
396 | ||
397 | ret = snd_soc_register_codec(codec); | |
398 | if (ret != 0) { | |
399 | dev_err(codec->dev, "Failed to register codec: %d\n", ret); | |
400 | kfree(ad193x); | |
401 | return ret; | |
402 | } | |
403 | ||
404 | ret = snd_soc_register_dai(&ad193x_dai); | |
405 | if (ret != 0) { | |
406 | dev_err(codec->dev, "Failed to register DAI: %d\n", ret); | |
407 | snd_soc_unregister_codec(codec); | |
408 | kfree(ad193x); | |
409 | return ret; | |
410 | } | |
411 | ||
412 | return 0; | |
413 | } | |
414 | ||
415 | static void ad193x_unregister(struct ad193x_priv *ad193x) | |
416 | { | |
417 | snd_soc_unregister_dai(&ad193x_dai); | |
418 | snd_soc_unregister_codec(&ad193x->codec); | |
419 | kfree(ad193x); | |
420 | ad193x_codec = NULL; | |
421 | } | |
422 | ||
423 | static int ad193x_probe(struct platform_device *pdev) | |
424 | { | |
425 | struct snd_soc_device *socdev = platform_get_drvdata(pdev); | |
426 | struct snd_soc_codec *codec; | |
427 | int ret = 0; | |
428 | ||
429 | if (ad193x_codec == NULL) { | |
430 | dev_err(&pdev->dev, "Codec device not registered\n"); | |
431 | return -ENODEV; | |
432 | } | |
433 | ||
434 | socdev->card->codec = ad193x_codec; | |
435 | codec = ad193x_codec; | |
436 | ||
437 | /* register pcms */ | |
438 | ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1); | |
439 | if (ret < 0) { | |
440 | dev_err(codec->dev, "failed to create pcms: %d\n", ret); | |
441 | goto pcm_err; | |
442 | } | |
443 | ||
444 | snd_soc_add_controls(codec, ad193x_snd_controls, | |
445 | ARRAY_SIZE(ad193x_snd_controls)); | |
446 | snd_soc_dapm_new_controls(codec, ad193x_dapm_widgets, | |
447 | ARRAY_SIZE(ad193x_dapm_widgets)); | |
448 | snd_soc_dapm_add_routes(codec, audio_paths, ARRAY_SIZE(audio_paths)); | |
449 | ||
450 | pcm_err: | |
451 | return ret; | |
452 | } | |
453 | ||
454 | /* power down chip */ | |
455 | static int ad193x_remove(struct platform_device *pdev) | |
456 | { | |
457 | struct snd_soc_device *socdev = platform_get_drvdata(pdev); | |
458 | ||
459 | snd_soc_free_pcms(socdev); | |
460 | snd_soc_dapm_free(socdev); | |
461 | ||
462 | return 0; | |
463 | } | |
464 | ||
465 | struct snd_soc_codec_device soc_codec_dev_ad193x = { | |
466 | .probe = ad193x_probe, | |
467 | .remove = ad193x_remove, | |
468 | }; | |
469 | EXPORT_SYMBOL_GPL(soc_codec_dev_ad193x); | |
470 | ||
471 | #if defined(CONFIG_SPI_MASTER) | |
472 | static int __devinit ad193x_spi_probe(struct spi_device *spi) | |
473 | { | |
474 | return ad193x_bus_probe(&spi->dev, spi, SND_SOC_SPI); | |
475 | } | |
476 | ||
477 | static int __devexit ad193x_spi_remove(struct spi_device *spi) | |
478 | { | |
479 | return ad193x_bus_remove(&spi->dev); | |
480 | } | |
481 | ||
482 | static struct spi_driver ad193x_spi_driver = { | |
483 | .driver = { | |
484 | .name = "ad193x", | |
485 | .owner = THIS_MODULE, | |
486 | }, | |
487 | .probe = ad193x_spi_probe, | |
488 | .remove = __devexit_p(ad193x_spi_remove), | |
489 | }; | |
490 | #endif | |
491 | ||
492 | #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) | |
493 | static const struct i2c_device_id ad193x_id[] = { | |
494 | { "ad1936", 0 }, | |
495 | { "ad1937", 0 }, | |
496 | { } | |
497 | }; | |
498 | MODULE_DEVICE_TABLE(i2c, ad193x_id); | |
499 | ||
500 | static int __devinit ad193x_i2c_probe(struct i2c_client *client, | |
501 | const struct i2c_device_id *id) | |
502 | { | |
503 | return ad193x_bus_probe(&client->dev, client, SND_SOC_I2C); | |
504 | } | |
505 | ||
506 | static int __devexit ad193x_i2c_remove(struct i2c_client *client) | |
507 | { | |
508 | return ad193x_bus_remove(&client->dev); | |
509 | } | |
510 | ||
511 | static struct i2c_driver ad193x_i2c_driver = { | |
512 | .driver = { | |
513 | .name = "ad193x", | |
514 | }, | |
515 | .probe = ad193x_i2c_probe, | |
516 | .remove = __devexit_p(ad193x_i2c_remove), | |
517 | .id_table = ad193x_id, | |
518 | }; | |
519 | #endif | |
520 | ||
521 | static int __init ad193x_modinit(void) | |
522 | { | |
523 | int ret; | |
524 | ||
525 | #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) | |
526 | ret = i2c_add_driver(&ad193x_i2c_driver); | |
527 | if (ret != 0) { | |
528 | printk(KERN_ERR "Failed to register AD193X I2C driver: %d\n", | |
529 | ret); | |
530 | } | |
531 | #endif | |
532 | ||
533 | #if defined(CONFIG_SPI_MASTER) | |
534 | ret = spi_register_driver(&ad193x_spi_driver); | |
535 | if (ret != 0) { | |
536 | printk(KERN_ERR "Failed to register AD193X SPI driver: %d\n", | |
537 | ret); | |
538 | } | |
539 | #endif | |
540 | return ret; | |
541 | } | |
542 | module_init(ad193x_modinit); | |
543 | ||
544 | static void __exit ad193x_modexit(void) | |
545 | { | |
546 | #if defined(CONFIG_SPI_MASTER) | |
547 | spi_unregister_driver(&ad193x_spi_driver); | |
548 | #endif | |
549 | ||
550 | #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) | |
551 | i2c_del_driver(&ad193x_i2c_driver); | |
552 | #endif | |
553 | } | |
554 | module_exit(ad193x_modexit); | |
555 | ||
556 | MODULE_DESCRIPTION("ASoC ad193x driver"); | |
557 | MODULE_AUTHOR("Barry Song <21cnbao@gmail.com>"); | |
558 | MODULE_LICENSE("GPL"); |