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98615454 KM |
1 | /* |
2 | * DA7210 ALSA Soc codec driver | |
3 | * | |
4 | * Copyright (c) 2009 Dialog Semiconductor | |
5 | * Written by David Chen <Dajun.chen@diasemi.com> | |
6 | * | |
7 | * Copyright (C) 2009 Renesas Solutions Corp. | |
8 | * Cleanups by Kuninori Morimoto <morimoto.kuninori@renesas.com> | |
9 | * | |
10 | * Tested on SuperH Ecovec24 board with S16/S24 LE in 48KHz using I2S | |
11 | * | |
12 | * This program is free software; you can redistribute it and/or modify it | |
13 | * under the terms of the GNU General Public License as published by the | |
14 | * Free Software Foundation; either version 2 of the License, or (at your | |
15 | * option) any later version. | |
16 | */ | |
17 | ||
18 | #include <linux/module.h> | |
19 | #include <linux/moduleparam.h> | |
20 | #include <linux/kernel.h> | |
21 | #include <linux/init.h> | |
22 | #include <linux/delay.h> | |
23 | #include <linux/pm.h> | |
24 | #include <linux/i2c.h> | |
25 | #include <linux/platform_device.h> | |
26 | #include <sound/core.h> | |
27 | #include <sound/pcm.h> | |
28 | #include <sound/pcm_params.h> | |
29 | #include <sound/soc.h> | |
30 | #include <sound/soc-dapm.h> | |
31 | #include <sound/tlv.h> | |
32 | #include <sound/initval.h> | |
33 | #include <asm/div64.h> | |
34 | ||
35 | #include "da7210.h" | |
36 | ||
37 | /* DA7210 register space */ | |
38 | #define DA7210_STATUS 0x02 | |
39 | #define DA7210_STARTUP1 0x03 | |
40 | #define DA7210_MIC_L 0x07 | |
41 | #define DA7210_MIC_R 0x08 | |
42 | #define DA7210_INMIX_L 0x0D | |
43 | #define DA7210_INMIX_R 0x0E | |
44 | #define DA7210_ADC_HPF 0x0F | |
45 | #define DA7210_ADC 0x10 | |
46 | #define DA7210_DAC_HPF 0x14 | |
47 | #define DA7210_DAC_L 0x15 | |
48 | #define DA7210_DAC_R 0x16 | |
49 | #define DA7210_DAC_SEL 0x17 | |
50 | #define DA7210_OUTMIX_L 0x1C | |
51 | #define DA7210_OUTMIX_R 0x1D | |
52 | #define DA7210_HP_L_VOL 0x21 | |
53 | #define DA7210_HP_R_VOL 0x22 | |
54 | #define DA7210_HP_CFG 0x23 | |
55 | #define DA7210_DAI_SRC_SEL 0x25 | |
56 | #define DA7210_DAI_CFG1 0x26 | |
57 | #define DA7210_DAI_CFG3 0x28 | |
58 | #define DA7210_PLL_DIV3 0x2B | |
59 | #define DA7210_PLL 0x2C | |
60 | ||
61 | /* STARTUP1 bit fields */ | |
62 | #define DA7210_SC_MST_EN (1 << 0) | |
63 | ||
64 | /* MIC_L bit fields */ | |
65 | #define DA7210_MICBIAS_EN (1 << 6) | |
66 | #define DA7210_MIC_L_EN (1 << 7) | |
67 | ||
68 | /* MIC_R bit fields */ | |
69 | #define DA7210_MIC_R_EN (1 << 7) | |
70 | ||
71 | /* INMIX_L bit fields */ | |
72 | #define DA7210_IN_L_EN (1 << 7) | |
73 | ||
74 | /* INMIX_R bit fields */ | |
75 | #define DA7210_IN_R_EN (1 << 7) | |
76 | ||
77 | /* ADC_HPF bit fields */ | |
78 | #define DA7210_ADC_VOICE_EN (1 << 7) | |
79 | ||
80 | /* ADC bit fields */ | |
81 | #define DA7210_ADC_L_EN (1 << 3) | |
82 | #define DA7210_ADC_R_EN (1 << 7) | |
83 | ||
c2151433 MB |
84 | /* DAC_HPF fields */ |
85 | #define DA7210_DAC_VOICE_EN (1 << 7) | |
86 | ||
98615454 KM |
87 | /* DAC_SEL bit fields */ |
88 | #define DA7210_DAC_L_SRC_DAI_L (4 << 0) | |
89 | #define DA7210_DAC_L_EN (1 << 3) | |
90 | #define DA7210_DAC_R_SRC_DAI_R (5 << 4) | |
91 | #define DA7210_DAC_R_EN (1 << 7) | |
92 | ||
93 | /* OUTMIX_L bit fields */ | |
94 | #define DA7210_OUT_L_EN (1 << 7) | |
95 | ||
96 | /* OUTMIX_R bit fields */ | |
97 | #define DA7210_OUT_R_EN (1 << 7) | |
98 | ||
99 | /* HP_CFG bit fields */ | |
100 | #define DA7210_HP_2CAP_MODE (1 << 1) | |
101 | #define DA7210_HP_SENSE_EN (1 << 2) | |
102 | #define DA7210_HP_L_EN (1 << 3) | |
103 | #define DA7210_HP_MODE (1 << 6) | |
104 | #define DA7210_HP_R_EN (1 << 7) | |
105 | ||
106 | /* DAI_SRC_SEL bit fields */ | |
107 | #define DA7210_DAI_OUT_L_SRC (6 << 0) | |
108 | #define DA7210_DAI_OUT_R_SRC (7 << 4) | |
109 | ||
110 | /* DAI_CFG1 bit fields */ | |
111 | #define DA7210_DAI_WORD_S16_LE (0 << 0) | |
112 | #define DA7210_DAI_WORD_S24_LE (2 << 0) | |
113 | #define DA7210_DAI_FLEN_64BIT (1 << 2) | |
114 | #define DA7210_DAI_MODE_MASTER (1 << 7) | |
115 | ||
116 | /* DAI_CFG3 bit fields */ | |
117 | #define DA7210_DAI_FORMAT_I2SMODE (0 << 0) | |
118 | #define DA7210_DAI_OE (1 << 3) | |
119 | #define DA7210_DAI_EN (1 << 7) | |
120 | ||
121 | /*PLL_DIV3 bit fields */ | |
122 | #define DA7210_MCLK_RANGE_10_20_MHZ (1 << 4) | |
123 | #define DA7210_PLL_BYP (1 << 6) | |
124 | ||
125 | /* PLL bit fields */ | |
126 | #define DA7210_PLL_FS_48000 (11 << 0) | |
127 | ||
128 | #define DA7210_VERSION "0.0.1" | |
129 | ||
130 | /* Codec private data */ | |
131 | struct da7210_priv { | |
132 | struct snd_soc_codec codec; | |
133 | }; | |
134 | ||
135 | static struct snd_soc_codec *da7210_codec; | |
136 | ||
137 | /* | |
138 | * Register cache | |
139 | */ | |
140 | static const u8 da7210_reg[] = { | |
141 | 0x00, 0x11, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* R0 - R7 */ | |
142 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x08, /* R8 - RF */ | |
143 | 0x00, 0x00, 0x00, 0x00, 0x08, 0x10, 0x10, 0x54, /* R10 - R17 */ | |
144 | 0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* R18 - R1F */ | |
145 | 0x00, 0x00, 0x00, 0x02, 0x00, 0x76, 0x00, 0x00, /* R20 - R27 */ | |
146 | 0x04, 0x00, 0x00, 0x30, 0x2A, 0x00, 0x40, 0x00, /* R28 - R2F */ | |
147 | 0x40, 0x00, 0x40, 0x00, 0x40, 0x00, 0x40, 0x00, /* R30 - R37 */ | |
148 | 0x40, 0x00, 0x40, 0x00, 0x40, 0x00, 0x00, 0x00, /* R38 - R3F */ | |
149 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* R40 - R4F */ | |
150 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* R48 - R4F */ | |
151 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* R50 - R57 */ | |
152 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* R58 - R5F */ | |
153 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* R60 - R67 */ | |
154 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* R68 - R6F */ | |
155 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* R70 - R77 */ | |
156 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x54, 0x54, 0x00, /* R78 - R7F */ | |
157 | 0x00, 0x00, 0x2C, 0x00, 0x00, 0x00, 0x00, 0x00, /* R80 - R87 */ | |
158 | 0x00, /* R88 */ | |
159 | }; | |
160 | ||
161 | /* | |
162 | * Read da7210 register cache | |
163 | */ | |
164 | static inline u32 da7210_read_reg_cache(struct snd_soc_codec *codec, u32 reg) | |
165 | { | |
166 | u8 *cache = codec->reg_cache; | |
167 | BUG_ON(reg > ARRAY_SIZE(da7210_reg)); | |
168 | return cache[reg]; | |
169 | } | |
170 | ||
171 | /* | |
172 | * Write to the da7210 register space | |
173 | */ | |
174 | static int da7210_write(struct snd_soc_codec *codec, u32 reg, u32 value) | |
175 | { | |
176 | u8 *cache = codec->reg_cache; | |
177 | u8 data[2]; | |
178 | ||
179 | BUG_ON(codec->volatile_register); | |
180 | ||
181 | data[0] = reg & 0xff; | |
182 | data[1] = value & 0xff; | |
183 | ||
184 | if (reg >= codec->reg_cache_size) | |
185 | return -EIO; | |
186 | ||
187 | if (2 != codec->hw_write(codec->control_data, data, 2)) | |
188 | return -EIO; | |
189 | ||
190 | cache[reg] = value; | |
191 | return 0; | |
192 | } | |
193 | ||
194 | /* | |
195 | * Read from the da7210 register space. | |
196 | */ | |
197 | static inline u32 da7210_read(struct snd_soc_codec *codec, u32 reg) | |
198 | { | |
199 | if (DA7210_STATUS == reg) | |
200 | return i2c_smbus_read_byte_data(codec->control_data, reg); | |
201 | ||
202 | return da7210_read_reg_cache(codec, reg); | |
203 | } | |
204 | ||
205 | static int da7210_startup(struct snd_pcm_substream *substream, | |
206 | struct snd_soc_dai *dai) | |
207 | { | |
208 | int is_play = substream->stream == SNDRV_PCM_STREAM_PLAYBACK; | |
209 | struct snd_soc_codec *codec = dai->codec; | |
210 | ||
211 | if (is_play) { | |
212 | /* PlayBack Volume 40 */ | |
213 | snd_soc_update_bits(codec, DA7210_HP_L_VOL, 0x3F, 40); | |
214 | snd_soc_update_bits(codec, DA7210_HP_R_VOL, 0x3F, 40); | |
215 | ||
216 | /* Enable Out */ | |
217 | snd_soc_update_bits(codec, DA7210_OUTMIX_L, 0x1F, 0x10); | |
218 | snd_soc_update_bits(codec, DA7210_OUTMIX_R, 0x1F, 0x10); | |
219 | ||
220 | } else { | |
221 | /* Volume 7 */ | |
222 | snd_soc_update_bits(codec, DA7210_MIC_L, 0x7, 0x7); | |
223 | snd_soc_update_bits(codec, DA7210_MIC_R, 0x7, 0x7); | |
224 | ||
225 | /* Enable Mic */ | |
226 | snd_soc_update_bits(codec, DA7210_INMIX_L, 0x1F, 0x1); | |
227 | snd_soc_update_bits(codec, DA7210_INMIX_R, 0x1F, 0x1); | |
228 | } | |
229 | ||
230 | return 0; | |
231 | } | |
232 | ||
233 | /* | |
234 | * Set PCM DAI word length. | |
235 | */ | |
236 | static int da7210_hw_params(struct snd_pcm_substream *substream, | |
237 | struct snd_pcm_hw_params *params, | |
238 | struct snd_soc_dai *dai) | |
239 | { | |
240 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
241 | struct snd_soc_device *socdev = rtd->socdev; | |
242 | struct snd_soc_codec *codec = socdev->card->codec; | |
243 | u32 dai_cfg1; | |
244 | u32 reg, mask; | |
245 | ||
246 | /* set DAI source to Left and Right ADC */ | |
247 | da7210_write(codec, DA7210_DAI_SRC_SEL, | |
248 | DA7210_DAI_OUT_R_SRC | DA7210_DAI_OUT_L_SRC); | |
249 | ||
250 | /* Enable DAI */ | |
251 | da7210_write(codec, DA7210_DAI_CFG3, DA7210_DAI_OE | DA7210_DAI_EN); | |
252 | ||
253 | dai_cfg1 = 0xFC & da7210_read(codec, DA7210_DAI_CFG1); | |
254 | ||
255 | switch (params_format(params)) { | |
256 | case SNDRV_PCM_FORMAT_S16_LE: | |
257 | dai_cfg1 |= DA7210_DAI_WORD_S16_LE; | |
258 | break; | |
259 | case SNDRV_PCM_FORMAT_S24_LE: | |
260 | dai_cfg1 |= DA7210_DAI_WORD_S24_LE; | |
261 | break; | |
262 | default: | |
263 | return -EINVAL; | |
264 | } | |
265 | ||
266 | da7210_write(codec, DA7210_DAI_CFG1, dai_cfg1); | |
267 | ||
268 | /* FIXME | |
269 | * | |
270 | * It support 48K only now | |
271 | */ | |
272 | switch (params_rate(params)) { | |
273 | case 48000: | |
274 | if (SNDRV_PCM_STREAM_PLAYBACK == substream->stream) { | |
275 | reg = DA7210_DAC_HPF; | |
276 | mask = DA7210_DAC_VOICE_EN; | |
277 | } else { | |
278 | reg = DA7210_ADC_HPF; | |
279 | mask = DA7210_ADC_VOICE_EN; | |
280 | } | |
281 | break; | |
282 | default: | |
283 | return -EINVAL; | |
284 | } | |
285 | ||
286 | snd_soc_update_bits(codec, reg, mask, 0); | |
287 | ||
288 | return 0; | |
289 | } | |
290 | ||
291 | /* | |
292 | * Set DAI mode and Format | |
293 | */ | |
294 | static int da7210_set_dai_fmt(struct snd_soc_dai *codec_dai, u32 fmt) | |
295 | { | |
296 | struct snd_soc_codec *codec = codec_dai->codec; | |
297 | u32 dai_cfg1; | |
298 | u32 dai_cfg3; | |
299 | ||
300 | dai_cfg1 = 0x7f & da7210_read(codec, DA7210_DAI_CFG1); | |
301 | dai_cfg3 = 0xfc & da7210_read(codec, DA7210_DAI_CFG3); | |
302 | ||
303 | switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { | |
304 | case SND_SOC_DAIFMT_CBM_CFM: | |
305 | dai_cfg1 |= DA7210_DAI_MODE_MASTER; | |
306 | break; | |
307 | default: | |
308 | return -EINVAL; | |
309 | } | |
310 | ||
311 | /* FIXME | |
312 | * | |
313 | * It support I2S only now | |
314 | */ | |
315 | switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { | |
316 | case SND_SOC_DAIFMT_I2S: | |
317 | dai_cfg3 |= DA7210_DAI_FORMAT_I2SMODE; | |
318 | break; | |
319 | default: | |
320 | return -EINVAL; | |
321 | } | |
322 | ||
323 | /* FIXME | |
324 | * | |
325 | * It support 64bit data transmission only now | |
326 | */ | |
327 | dai_cfg1 |= DA7210_DAI_FLEN_64BIT; | |
328 | ||
329 | da7210_write(codec, DA7210_DAI_CFG1, dai_cfg1); | |
330 | da7210_write(codec, DA7210_DAI_CFG3, dai_cfg3); | |
331 | ||
332 | return 0; | |
333 | } | |
334 | ||
335 | #define DA7210_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE) | |
336 | ||
337 | /* DAI operations */ | |
338 | static struct snd_soc_dai_ops da7210_dai_ops = { | |
339 | .startup = da7210_startup, | |
340 | .hw_params = da7210_hw_params, | |
341 | .set_fmt = da7210_set_dai_fmt, | |
342 | }; | |
343 | ||
344 | struct snd_soc_dai da7210_dai = { | |
345 | .name = "DA7210 IIS", | |
346 | .id = 0, | |
347 | /* playback capabilities */ | |
348 | .playback = { | |
349 | .stream_name = "Playback", | |
350 | .channels_min = 1, | |
351 | .channels_max = 2, | |
352 | .rates = SNDRV_PCM_RATE_8000_96000, | |
353 | .formats = DA7210_FORMATS, | |
354 | }, | |
355 | /* capture capabilities */ | |
356 | .capture = { | |
357 | .stream_name = "Capture", | |
358 | .channels_min = 1, | |
359 | .channels_max = 2, | |
360 | .rates = SNDRV_PCM_RATE_8000_96000, | |
361 | .formats = DA7210_FORMATS, | |
362 | }, | |
363 | .ops = &da7210_dai_ops, | |
364 | }; | |
365 | EXPORT_SYMBOL_GPL(da7210_dai); | |
366 | ||
367 | /* | |
368 | * Initialize the DA7210 driver | |
369 | * register the mixer and dsp interfaces with the kernel | |
370 | */ | |
371 | static int da7210_init(struct da7210_priv *da7210) | |
372 | { | |
373 | struct snd_soc_codec *codec = &da7210->codec; | |
374 | int ret = 0; | |
375 | ||
376 | if (da7210_codec) { | |
377 | dev_err(codec->dev, "Another da7210 is registered\n"); | |
378 | return -EINVAL; | |
379 | } | |
380 | ||
381 | mutex_init(&codec->mutex); | |
382 | INIT_LIST_HEAD(&codec->dapm_widgets); | |
383 | INIT_LIST_HEAD(&codec->dapm_paths); | |
384 | ||
385 | codec->private_data = da7210; | |
386 | codec->name = "DA7210"; | |
387 | codec->owner = THIS_MODULE; | |
388 | codec->read = da7210_read; | |
389 | codec->write = da7210_write; | |
390 | codec->dai = &da7210_dai; | |
391 | codec->num_dai = 1; | |
392 | codec->hw_write = (hw_write_t)i2c_master_send; | |
393 | codec->reg_cache_size = ARRAY_SIZE(da7210_reg); | |
394 | codec->reg_cache = kmemdup(da7210_reg, | |
395 | sizeof(da7210_reg), GFP_KERNEL); | |
396 | ||
397 | if (!codec->reg_cache) | |
398 | return -ENOMEM; | |
399 | ||
400 | da7210_dai.dev = codec->dev; | |
401 | da7210_codec = codec; | |
402 | ||
403 | ret = snd_soc_register_codec(codec); | |
404 | if (ret) { | |
405 | dev_err(codec->dev, "Failed to register CODEC: %d\n", ret); | |
406 | goto init_err; | |
407 | } | |
408 | ||
409 | ret = snd_soc_register_dai(&da7210_dai); | |
410 | if (ret) { | |
411 | dev_err(codec->dev, "Failed to register DAI: %d\n", ret); | |
412 | goto init_err; | |
413 | } | |
414 | ||
415 | /* FIXME | |
416 | * | |
417 | * This driver use fixed value here | |
418 | */ | |
419 | ||
420 | /* | |
421 | * ADC settings | |
422 | */ | |
423 | ||
424 | /* Enable Left & Right MIC PGA and Mic Bias */ | |
425 | da7210_write(codec, DA7210_MIC_L, DA7210_MIC_L_EN | DA7210_MICBIAS_EN); | |
426 | da7210_write(codec, DA7210_MIC_R, DA7210_MIC_R_EN); | |
427 | ||
428 | /* Enable Left and Right input PGA */ | |
429 | da7210_write(codec, DA7210_INMIX_L, DA7210_IN_L_EN); | |
430 | da7210_write(codec, DA7210_INMIX_R, DA7210_IN_R_EN); | |
431 | ||
432 | /* Enable Left and Right ADC */ | |
433 | da7210_write(codec, DA7210_ADC, DA7210_ADC_L_EN | DA7210_ADC_R_EN); | |
434 | ||
435 | /* | |
436 | * DAC settings | |
437 | */ | |
438 | ||
439 | /* Enable Left and Right DAC */ | |
440 | da7210_write(codec, DA7210_DAC_SEL, | |
441 | DA7210_DAC_L_SRC_DAI_L | DA7210_DAC_L_EN | | |
442 | DA7210_DAC_R_SRC_DAI_R | DA7210_DAC_R_EN); | |
443 | ||
444 | /* Enable Left and Right out PGA */ | |
445 | da7210_write(codec, DA7210_OUTMIX_L, DA7210_OUT_L_EN); | |
446 | da7210_write(codec, DA7210_OUTMIX_R, DA7210_OUT_R_EN); | |
447 | ||
448 | /* Enable Left and Right HeadPhone PGA */ | |
449 | da7210_write(codec, DA7210_HP_CFG, | |
450 | DA7210_HP_2CAP_MODE | DA7210_HP_SENSE_EN | | |
451 | DA7210_HP_L_EN | DA7210_HP_MODE | DA7210_HP_R_EN); | |
452 | ||
453 | /* Diable PLL and bypass it */ | |
454 | da7210_write(codec, DA7210_PLL, DA7210_PLL_FS_48000); | |
455 | ||
456 | /* Bypass PLL and set MCLK freq rang to 10-20MHz */ | |
457 | da7210_write(codec, DA7210_PLL_DIV3, | |
458 | DA7210_MCLK_RANGE_10_20_MHZ | DA7210_PLL_BYP); | |
459 | ||
460 | /* Activate all enabled subsystem */ | |
461 | da7210_write(codec, DA7210_STARTUP1, DA7210_SC_MST_EN); | |
462 | ||
463 | return ret; | |
464 | ||
465 | init_err: | |
466 | kfree(codec->reg_cache); | |
467 | codec->reg_cache = NULL; | |
468 | ||
469 | return ret; | |
470 | ||
471 | } | |
472 | ||
473 | #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) | |
735fe4cf MB |
474 | static int __devinit da7210_i2c_probe(struct i2c_client *i2c, |
475 | const struct i2c_device_id *id) | |
98615454 KM |
476 | { |
477 | struct da7210_priv *da7210; | |
478 | struct snd_soc_codec *codec; | |
479 | int ret; | |
480 | ||
481 | da7210 = kzalloc(sizeof(struct da7210_priv), GFP_KERNEL); | |
482 | if (!da7210) | |
483 | return -ENOMEM; | |
484 | ||
485 | codec = &da7210->codec; | |
486 | codec->dev = &i2c->dev; | |
487 | ||
488 | i2c_set_clientdata(i2c, da7210); | |
489 | codec->control_data = i2c; | |
490 | ||
491 | ret = da7210_init(da7210); | |
492 | if (ret < 0) | |
493 | pr_err("Failed to initialise da7210 audio codec\n"); | |
494 | ||
495 | return ret; | |
496 | } | |
497 | ||
735fe4cf | 498 | static int __devexit da7210_i2c_remove(struct i2c_client *client) |
98615454 KM |
499 | { |
500 | struct da7210_priv *da7210 = i2c_get_clientdata(client); | |
501 | ||
502 | snd_soc_unregister_dai(&da7210_dai); | |
503 | kfree(da7210->codec.reg_cache); | |
504 | kfree(da7210); | |
505 | da7210_codec = NULL; | |
506 | ||
507 | return 0; | |
508 | } | |
509 | ||
510 | static const struct i2c_device_id da7210_i2c_id[] = { | |
511 | { "da7210", 0 }, | |
512 | { } | |
513 | }; | |
514 | MODULE_DEVICE_TABLE(i2c, da7210_i2c_id); | |
515 | ||
516 | /* I2C codec control layer */ | |
517 | static struct i2c_driver da7210_i2c_driver = { | |
518 | .driver = { | |
519 | .name = "DA7210 I2C Codec", | |
520 | .owner = THIS_MODULE, | |
521 | }, | |
522 | .probe = da7210_i2c_probe, | |
523 | .remove = __devexit_p(da7210_i2c_remove), | |
524 | .id_table = da7210_i2c_id, | |
525 | }; | |
526 | #endif | |
527 | ||
528 | static int da7210_probe(struct platform_device *pdev) | |
529 | { | |
530 | struct snd_soc_device *socdev = platform_get_drvdata(pdev); | |
531 | struct snd_soc_codec *codec; | |
532 | int ret; | |
533 | ||
534 | if (!da7210_codec) { | |
535 | dev_err(&pdev->dev, "Codec device not registered\n"); | |
536 | return -ENODEV; | |
537 | } | |
538 | ||
539 | socdev->card->codec = da7210_codec; | |
540 | codec = da7210_codec; | |
541 | ||
542 | /* Register pcms */ | |
543 | ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1); | |
544 | if (ret < 0) | |
545 | goto pcm_err; | |
546 | ||
547 | dev_info(&pdev->dev, "DA7210 Audio Codec %s\n", DA7210_VERSION); | |
548 | ||
549 | pcm_err: | |
550 | return ret; | |
551 | } | |
552 | ||
553 | static int da7210_remove(struct platform_device *pdev) | |
554 | { | |
555 | struct snd_soc_device *socdev = platform_get_drvdata(pdev); | |
556 | ||
557 | snd_soc_free_pcms(socdev); | |
558 | snd_soc_dapm_free(socdev); | |
559 | ||
560 | return 0; | |
561 | } | |
562 | ||
563 | struct snd_soc_codec_device soc_codec_dev_da7210 = { | |
564 | .probe = da7210_probe, | |
565 | .remove = da7210_remove, | |
566 | }; | |
567 | EXPORT_SYMBOL_GPL(soc_codec_dev_da7210); | |
568 | ||
569 | static int __init da7210_modinit(void) | |
570 | { | |
571 | int ret = 0; | |
572 | #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) | |
573 | ret = i2c_add_driver(&da7210_i2c_driver); | |
574 | #endif | |
575 | return ret; | |
576 | } | |
577 | module_init(da7210_modinit); | |
578 | ||
579 | static void __exit da7210_exit(void) | |
580 | { | |
581 | #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) | |
582 | i2c_del_driver(&da7210_i2c_driver); | |
583 | #endif | |
584 | } | |
585 | module_exit(da7210_exit); | |
586 | ||
587 | MODULE_DESCRIPTION("ASoC DA7210 driver"); | |
588 | MODULE_AUTHOR("David Chen, Kuninori Morimoto"); | |
589 | MODULE_LICENSE("GPL"); |