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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> | |
5a0e3ad6 | 26 | #include <linux/slab.h> |
98615454 KM |
27 | #include <sound/core.h> |
28 | #include <sound/pcm.h> | |
29 | #include <sound/pcm_params.h> | |
30 | #include <sound/soc.h> | |
31 | #include <sound/soc-dapm.h> | |
32 | #include <sound/tlv.h> | |
33 | #include <sound/initval.h> | |
34 | #include <asm/div64.h> | |
35 | ||
36 | #include "da7210.h" | |
37 | ||
38 | /* DA7210 register space */ | |
39 | #define DA7210_STATUS 0x02 | |
40 | #define DA7210_STARTUP1 0x03 | |
41 | #define DA7210_MIC_L 0x07 | |
42 | #define DA7210_MIC_R 0x08 | |
43 | #define DA7210_INMIX_L 0x0D | |
44 | #define DA7210_INMIX_R 0x0E | |
45 | #define DA7210_ADC_HPF 0x0F | |
46 | #define DA7210_ADC 0x10 | |
47 | #define DA7210_DAC_HPF 0x14 | |
48 | #define DA7210_DAC_L 0x15 | |
49 | #define DA7210_DAC_R 0x16 | |
50 | #define DA7210_DAC_SEL 0x17 | |
51 | #define DA7210_OUTMIX_L 0x1C | |
52 | #define DA7210_OUTMIX_R 0x1D | |
53 | #define DA7210_HP_L_VOL 0x21 | |
54 | #define DA7210_HP_R_VOL 0x22 | |
55 | #define DA7210_HP_CFG 0x23 | |
56 | #define DA7210_DAI_SRC_SEL 0x25 | |
57 | #define DA7210_DAI_CFG1 0x26 | |
58 | #define DA7210_DAI_CFG3 0x28 | |
59 | #define DA7210_PLL_DIV3 0x2B | |
60 | #define DA7210_PLL 0x2C | |
61 | ||
62 | /* STARTUP1 bit fields */ | |
63 | #define DA7210_SC_MST_EN (1 << 0) | |
64 | ||
65 | /* MIC_L bit fields */ | |
66 | #define DA7210_MICBIAS_EN (1 << 6) | |
67 | #define DA7210_MIC_L_EN (1 << 7) | |
68 | ||
69 | /* MIC_R bit fields */ | |
70 | #define DA7210_MIC_R_EN (1 << 7) | |
71 | ||
72 | /* INMIX_L bit fields */ | |
73 | #define DA7210_IN_L_EN (1 << 7) | |
74 | ||
75 | /* INMIX_R bit fields */ | |
76 | #define DA7210_IN_R_EN (1 << 7) | |
77 | ||
78 | /* ADC_HPF bit fields */ | |
79 | #define DA7210_ADC_VOICE_EN (1 << 7) | |
80 | ||
81 | /* ADC bit fields */ | |
82 | #define DA7210_ADC_L_EN (1 << 3) | |
83 | #define DA7210_ADC_R_EN (1 << 7) | |
84 | ||
c2151433 MB |
85 | /* DAC_HPF fields */ |
86 | #define DA7210_DAC_VOICE_EN (1 << 7) | |
87 | ||
98615454 KM |
88 | /* DAC_SEL bit fields */ |
89 | #define DA7210_DAC_L_SRC_DAI_L (4 << 0) | |
90 | #define DA7210_DAC_L_EN (1 << 3) | |
91 | #define DA7210_DAC_R_SRC_DAI_R (5 << 4) | |
92 | #define DA7210_DAC_R_EN (1 << 7) | |
93 | ||
94 | /* OUTMIX_L bit fields */ | |
95 | #define DA7210_OUT_L_EN (1 << 7) | |
96 | ||
97 | /* OUTMIX_R bit fields */ | |
98 | #define DA7210_OUT_R_EN (1 << 7) | |
99 | ||
100 | /* HP_CFG bit fields */ | |
101 | #define DA7210_HP_2CAP_MODE (1 << 1) | |
102 | #define DA7210_HP_SENSE_EN (1 << 2) | |
103 | #define DA7210_HP_L_EN (1 << 3) | |
104 | #define DA7210_HP_MODE (1 << 6) | |
105 | #define DA7210_HP_R_EN (1 << 7) | |
106 | ||
107 | /* DAI_SRC_SEL bit fields */ | |
108 | #define DA7210_DAI_OUT_L_SRC (6 << 0) | |
109 | #define DA7210_DAI_OUT_R_SRC (7 << 4) | |
110 | ||
111 | /* DAI_CFG1 bit fields */ | |
112 | #define DA7210_DAI_WORD_S16_LE (0 << 0) | |
113 | #define DA7210_DAI_WORD_S24_LE (2 << 0) | |
114 | #define DA7210_DAI_FLEN_64BIT (1 << 2) | |
115 | #define DA7210_DAI_MODE_MASTER (1 << 7) | |
116 | ||
117 | /* DAI_CFG3 bit fields */ | |
118 | #define DA7210_DAI_FORMAT_I2SMODE (0 << 0) | |
119 | #define DA7210_DAI_OE (1 << 3) | |
120 | #define DA7210_DAI_EN (1 << 7) | |
121 | ||
122 | /*PLL_DIV3 bit fields */ | |
123 | #define DA7210_MCLK_RANGE_10_20_MHZ (1 << 4) | |
124 | #define DA7210_PLL_BYP (1 << 6) | |
125 | ||
126 | /* PLL bit fields */ | |
127 | #define DA7210_PLL_FS_48000 (11 << 0) | |
128 | ||
129 | #define DA7210_VERSION "0.0.1" | |
130 | ||
131 | /* Codec private data */ | |
132 | struct da7210_priv { | |
133 | struct snd_soc_codec codec; | |
134 | }; | |
135 | ||
136 | static struct snd_soc_codec *da7210_codec; | |
137 | ||
138 | /* | |
139 | * Register cache | |
140 | */ | |
141 | static const u8 da7210_reg[] = { | |
142 | 0x00, 0x11, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* R0 - R7 */ | |
143 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x08, /* R8 - RF */ | |
144 | 0x00, 0x00, 0x00, 0x00, 0x08, 0x10, 0x10, 0x54, /* R10 - R17 */ | |
145 | 0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* R18 - R1F */ | |
146 | 0x00, 0x00, 0x00, 0x02, 0x00, 0x76, 0x00, 0x00, /* R20 - R27 */ | |
147 | 0x04, 0x00, 0x00, 0x30, 0x2A, 0x00, 0x40, 0x00, /* R28 - R2F */ | |
148 | 0x40, 0x00, 0x40, 0x00, 0x40, 0x00, 0x40, 0x00, /* R30 - R37 */ | |
149 | 0x40, 0x00, 0x40, 0x00, 0x40, 0x00, 0x00, 0x00, /* R38 - R3F */ | |
150 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* R40 - R4F */ | |
151 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* R48 - R4F */ | |
152 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* R50 - R57 */ | |
153 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* R58 - R5F */ | |
154 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* R60 - R67 */ | |
155 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* R68 - R6F */ | |
156 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* R70 - R77 */ | |
157 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x54, 0x54, 0x00, /* R78 - R7F */ | |
158 | 0x00, 0x00, 0x2C, 0x00, 0x00, 0x00, 0x00, 0x00, /* R80 - R87 */ | |
159 | 0x00, /* R88 */ | |
160 | }; | |
161 | ||
162 | /* | |
163 | * Read da7210 register cache | |
164 | */ | |
165 | static inline u32 da7210_read_reg_cache(struct snd_soc_codec *codec, u32 reg) | |
166 | { | |
167 | u8 *cache = codec->reg_cache; | |
168 | BUG_ON(reg > ARRAY_SIZE(da7210_reg)); | |
169 | return cache[reg]; | |
170 | } | |
171 | ||
172 | /* | |
173 | * Write to the da7210 register space | |
174 | */ | |
175 | static int da7210_write(struct snd_soc_codec *codec, u32 reg, u32 value) | |
176 | { | |
177 | u8 *cache = codec->reg_cache; | |
178 | u8 data[2]; | |
179 | ||
180 | BUG_ON(codec->volatile_register); | |
181 | ||
182 | data[0] = reg & 0xff; | |
183 | data[1] = value & 0xff; | |
184 | ||
185 | if (reg >= codec->reg_cache_size) | |
186 | return -EIO; | |
187 | ||
188 | if (2 != codec->hw_write(codec->control_data, data, 2)) | |
189 | return -EIO; | |
190 | ||
191 | cache[reg] = value; | |
192 | return 0; | |
193 | } | |
194 | ||
195 | /* | |
196 | * Read from the da7210 register space. | |
197 | */ | |
198 | static inline u32 da7210_read(struct snd_soc_codec *codec, u32 reg) | |
199 | { | |
200 | if (DA7210_STATUS == reg) | |
201 | return i2c_smbus_read_byte_data(codec->control_data, reg); | |
202 | ||
203 | return da7210_read_reg_cache(codec, reg); | |
204 | } | |
205 | ||
206 | static int da7210_startup(struct snd_pcm_substream *substream, | |
207 | struct snd_soc_dai *dai) | |
208 | { | |
209 | int is_play = substream->stream == SNDRV_PCM_STREAM_PLAYBACK; | |
210 | struct snd_soc_codec *codec = dai->codec; | |
211 | ||
212 | if (is_play) { | |
213 | /* PlayBack Volume 40 */ | |
214 | snd_soc_update_bits(codec, DA7210_HP_L_VOL, 0x3F, 40); | |
215 | snd_soc_update_bits(codec, DA7210_HP_R_VOL, 0x3F, 40); | |
216 | ||
217 | /* Enable Out */ | |
218 | snd_soc_update_bits(codec, DA7210_OUTMIX_L, 0x1F, 0x10); | |
219 | snd_soc_update_bits(codec, DA7210_OUTMIX_R, 0x1F, 0x10); | |
220 | ||
221 | } else { | |
222 | /* Volume 7 */ | |
223 | snd_soc_update_bits(codec, DA7210_MIC_L, 0x7, 0x7); | |
224 | snd_soc_update_bits(codec, DA7210_MIC_R, 0x7, 0x7); | |
225 | ||
226 | /* Enable Mic */ | |
227 | snd_soc_update_bits(codec, DA7210_INMIX_L, 0x1F, 0x1); | |
228 | snd_soc_update_bits(codec, DA7210_INMIX_R, 0x1F, 0x1); | |
229 | } | |
230 | ||
231 | return 0; | |
232 | } | |
233 | ||
234 | /* | |
235 | * Set PCM DAI word length. | |
236 | */ | |
237 | static int da7210_hw_params(struct snd_pcm_substream *substream, | |
238 | struct snd_pcm_hw_params *params, | |
239 | struct snd_soc_dai *dai) | |
240 | { | |
241 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
242 | struct snd_soc_device *socdev = rtd->socdev; | |
243 | struct snd_soc_codec *codec = socdev->card->codec; | |
244 | u32 dai_cfg1; | |
245 | u32 reg, mask; | |
246 | ||
247 | /* set DAI source to Left and Right ADC */ | |
248 | da7210_write(codec, DA7210_DAI_SRC_SEL, | |
249 | DA7210_DAI_OUT_R_SRC | DA7210_DAI_OUT_L_SRC); | |
250 | ||
251 | /* Enable DAI */ | |
252 | da7210_write(codec, DA7210_DAI_CFG3, DA7210_DAI_OE | DA7210_DAI_EN); | |
253 | ||
254 | dai_cfg1 = 0xFC & da7210_read(codec, DA7210_DAI_CFG1); | |
255 | ||
256 | switch (params_format(params)) { | |
257 | case SNDRV_PCM_FORMAT_S16_LE: | |
258 | dai_cfg1 |= DA7210_DAI_WORD_S16_LE; | |
259 | break; | |
260 | case SNDRV_PCM_FORMAT_S24_LE: | |
261 | dai_cfg1 |= DA7210_DAI_WORD_S24_LE; | |
262 | break; | |
263 | default: | |
264 | return -EINVAL; | |
265 | } | |
266 | ||
267 | da7210_write(codec, DA7210_DAI_CFG1, dai_cfg1); | |
268 | ||
269 | /* FIXME | |
270 | * | |
271 | * It support 48K only now | |
272 | */ | |
273 | switch (params_rate(params)) { | |
274 | case 48000: | |
275 | if (SNDRV_PCM_STREAM_PLAYBACK == substream->stream) { | |
276 | reg = DA7210_DAC_HPF; | |
277 | mask = DA7210_DAC_VOICE_EN; | |
278 | } else { | |
279 | reg = DA7210_ADC_HPF; | |
280 | mask = DA7210_ADC_VOICE_EN; | |
281 | } | |
282 | break; | |
283 | default: | |
284 | return -EINVAL; | |
285 | } | |
286 | ||
287 | snd_soc_update_bits(codec, reg, mask, 0); | |
288 | ||
289 | return 0; | |
290 | } | |
291 | ||
292 | /* | |
293 | * Set DAI mode and Format | |
294 | */ | |
295 | static int da7210_set_dai_fmt(struct snd_soc_dai *codec_dai, u32 fmt) | |
296 | { | |
297 | struct snd_soc_codec *codec = codec_dai->codec; | |
298 | u32 dai_cfg1; | |
299 | u32 dai_cfg3; | |
300 | ||
301 | dai_cfg1 = 0x7f & da7210_read(codec, DA7210_DAI_CFG1); | |
302 | dai_cfg3 = 0xfc & da7210_read(codec, DA7210_DAI_CFG3); | |
303 | ||
304 | switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { | |
305 | case SND_SOC_DAIFMT_CBM_CFM: | |
306 | dai_cfg1 |= DA7210_DAI_MODE_MASTER; | |
307 | break; | |
308 | default: | |
309 | return -EINVAL; | |
310 | } | |
311 | ||
312 | /* FIXME | |
313 | * | |
314 | * It support I2S only now | |
315 | */ | |
316 | switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { | |
317 | case SND_SOC_DAIFMT_I2S: | |
318 | dai_cfg3 |= DA7210_DAI_FORMAT_I2SMODE; | |
319 | break; | |
320 | default: | |
321 | return -EINVAL; | |
322 | } | |
323 | ||
324 | /* FIXME | |
325 | * | |
326 | * It support 64bit data transmission only now | |
327 | */ | |
328 | dai_cfg1 |= DA7210_DAI_FLEN_64BIT; | |
329 | ||
330 | da7210_write(codec, DA7210_DAI_CFG1, dai_cfg1); | |
331 | da7210_write(codec, DA7210_DAI_CFG3, dai_cfg3); | |
332 | ||
333 | return 0; | |
334 | } | |
335 | ||
336 | #define DA7210_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE) | |
337 | ||
338 | /* DAI operations */ | |
339 | static struct snd_soc_dai_ops da7210_dai_ops = { | |
340 | .startup = da7210_startup, | |
341 | .hw_params = da7210_hw_params, | |
342 | .set_fmt = da7210_set_dai_fmt, | |
343 | }; | |
344 | ||
345 | struct snd_soc_dai da7210_dai = { | |
346 | .name = "DA7210 IIS", | |
347 | .id = 0, | |
348 | /* playback capabilities */ | |
349 | .playback = { | |
350 | .stream_name = "Playback", | |
351 | .channels_min = 1, | |
352 | .channels_max = 2, | |
353 | .rates = SNDRV_PCM_RATE_8000_96000, | |
354 | .formats = DA7210_FORMATS, | |
355 | }, | |
356 | /* capture capabilities */ | |
357 | .capture = { | |
358 | .stream_name = "Capture", | |
359 | .channels_min = 1, | |
360 | .channels_max = 2, | |
361 | .rates = SNDRV_PCM_RATE_8000_96000, | |
362 | .formats = DA7210_FORMATS, | |
363 | }, | |
364 | .ops = &da7210_dai_ops, | |
365 | }; | |
366 | EXPORT_SYMBOL_GPL(da7210_dai); | |
367 | ||
368 | /* | |
369 | * Initialize the DA7210 driver | |
370 | * register the mixer and dsp interfaces with the kernel | |
371 | */ | |
372 | static int da7210_init(struct da7210_priv *da7210) | |
373 | { | |
374 | struct snd_soc_codec *codec = &da7210->codec; | |
375 | int ret = 0; | |
376 | ||
377 | if (da7210_codec) { | |
378 | dev_err(codec->dev, "Another da7210 is registered\n"); | |
379 | return -EINVAL; | |
380 | } | |
381 | ||
382 | mutex_init(&codec->mutex); | |
383 | INIT_LIST_HEAD(&codec->dapm_widgets); | |
384 | INIT_LIST_HEAD(&codec->dapm_paths); | |
385 | ||
386 | codec->private_data = da7210; | |
387 | codec->name = "DA7210"; | |
388 | codec->owner = THIS_MODULE; | |
389 | codec->read = da7210_read; | |
390 | codec->write = da7210_write; | |
391 | codec->dai = &da7210_dai; | |
392 | codec->num_dai = 1; | |
393 | codec->hw_write = (hw_write_t)i2c_master_send; | |
394 | codec->reg_cache_size = ARRAY_SIZE(da7210_reg); | |
395 | codec->reg_cache = kmemdup(da7210_reg, | |
396 | sizeof(da7210_reg), GFP_KERNEL); | |
397 | ||
398 | if (!codec->reg_cache) | |
399 | return -ENOMEM; | |
400 | ||
401 | da7210_dai.dev = codec->dev; | |
402 | da7210_codec = codec; | |
403 | ||
404 | ret = snd_soc_register_codec(codec); | |
405 | if (ret) { | |
406 | dev_err(codec->dev, "Failed to register CODEC: %d\n", ret); | |
407 | goto init_err; | |
408 | } | |
409 | ||
410 | ret = snd_soc_register_dai(&da7210_dai); | |
411 | if (ret) { | |
412 | dev_err(codec->dev, "Failed to register DAI: %d\n", ret); | |
413 | goto init_err; | |
414 | } | |
415 | ||
416 | /* FIXME | |
417 | * | |
418 | * This driver use fixed value here | |
419 | */ | |
420 | ||
421 | /* | |
422 | * ADC settings | |
423 | */ | |
424 | ||
425 | /* Enable Left & Right MIC PGA and Mic Bias */ | |
426 | da7210_write(codec, DA7210_MIC_L, DA7210_MIC_L_EN | DA7210_MICBIAS_EN); | |
427 | da7210_write(codec, DA7210_MIC_R, DA7210_MIC_R_EN); | |
428 | ||
429 | /* Enable Left and Right input PGA */ | |
430 | da7210_write(codec, DA7210_INMIX_L, DA7210_IN_L_EN); | |
431 | da7210_write(codec, DA7210_INMIX_R, DA7210_IN_R_EN); | |
432 | ||
433 | /* Enable Left and Right ADC */ | |
434 | da7210_write(codec, DA7210_ADC, DA7210_ADC_L_EN | DA7210_ADC_R_EN); | |
435 | ||
436 | /* | |
437 | * DAC settings | |
438 | */ | |
439 | ||
440 | /* Enable Left and Right DAC */ | |
441 | da7210_write(codec, DA7210_DAC_SEL, | |
442 | DA7210_DAC_L_SRC_DAI_L | DA7210_DAC_L_EN | | |
443 | DA7210_DAC_R_SRC_DAI_R | DA7210_DAC_R_EN); | |
444 | ||
445 | /* Enable Left and Right out PGA */ | |
446 | da7210_write(codec, DA7210_OUTMIX_L, DA7210_OUT_L_EN); | |
447 | da7210_write(codec, DA7210_OUTMIX_R, DA7210_OUT_R_EN); | |
448 | ||
449 | /* Enable Left and Right HeadPhone PGA */ | |
450 | da7210_write(codec, DA7210_HP_CFG, | |
451 | DA7210_HP_2CAP_MODE | DA7210_HP_SENSE_EN | | |
452 | DA7210_HP_L_EN | DA7210_HP_MODE | DA7210_HP_R_EN); | |
453 | ||
454 | /* Diable PLL and bypass it */ | |
455 | da7210_write(codec, DA7210_PLL, DA7210_PLL_FS_48000); | |
456 | ||
457 | /* Bypass PLL and set MCLK freq rang to 10-20MHz */ | |
458 | da7210_write(codec, DA7210_PLL_DIV3, | |
459 | DA7210_MCLK_RANGE_10_20_MHZ | DA7210_PLL_BYP); | |
460 | ||
461 | /* Activate all enabled subsystem */ | |
462 | da7210_write(codec, DA7210_STARTUP1, DA7210_SC_MST_EN); | |
463 | ||
464 | return ret; | |
465 | ||
466 | init_err: | |
467 | kfree(codec->reg_cache); | |
468 | codec->reg_cache = NULL; | |
469 | ||
470 | return ret; | |
471 | ||
472 | } | |
473 | ||
474 | #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) | |
735fe4cf MB |
475 | static int __devinit da7210_i2c_probe(struct i2c_client *i2c, |
476 | const struct i2c_device_id *id) | |
98615454 KM |
477 | { |
478 | struct da7210_priv *da7210; | |
479 | struct snd_soc_codec *codec; | |
480 | int ret; | |
481 | ||
482 | da7210 = kzalloc(sizeof(struct da7210_priv), GFP_KERNEL); | |
483 | if (!da7210) | |
484 | return -ENOMEM; | |
485 | ||
486 | codec = &da7210->codec; | |
487 | codec->dev = &i2c->dev; | |
488 | ||
489 | i2c_set_clientdata(i2c, da7210); | |
490 | codec->control_data = i2c; | |
491 | ||
492 | ret = da7210_init(da7210); | |
493 | if (ret < 0) | |
494 | pr_err("Failed to initialise da7210 audio codec\n"); | |
495 | ||
496 | return ret; | |
497 | } | |
498 | ||
735fe4cf | 499 | static int __devexit da7210_i2c_remove(struct i2c_client *client) |
98615454 KM |
500 | { |
501 | struct da7210_priv *da7210 = i2c_get_clientdata(client); | |
502 | ||
503 | snd_soc_unregister_dai(&da7210_dai); | |
504 | kfree(da7210->codec.reg_cache); | |
505 | kfree(da7210); | |
506 | da7210_codec = NULL; | |
507 | ||
508 | return 0; | |
509 | } | |
510 | ||
511 | static const struct i2c_device_id da7210_i2c_id[] = { | |
512 | { "da7210", 0 }, | |
513 | { } | |
514 | }; | |
515 | MODULE_DEVICE_TABLE(i2c, da7210_i2c_id); | |
516 | ||
517 | /* I2C codec control layer */ | |
518 | static struct i2c_driver da7210_i2c_driver = { | |
519 | .driver = { | |
520 | .name = "DA7210 I2C Codec", | |
521 | .owner = THIS_MODULE, | |
522 | }, | |
523 | .probe = da7210_i2c_probe, | |
524 | .remove = __devexit_p(da7210_i2c_remove), | |
525 | .id_table = da7210_i2c_id, | |
526 | }; | |
527 | #endif | |
528 | ||
529 | static int da7210_probe(struct platform_device *pdev) | |
530 | { | |
531 | struct snd_soc_device *socdev = platform_get_drvdata(pdev); | |
532 | struct snd_soc_codec *codec; | |
533 | int ret; | |
534 | ||
535 | if (!da7210_codec) { | |
536 | dev_err(&pdev->dev, "Codec device not registered\n"); | |
537 | return -ENODEV; | |
538 | } | |
539 | ||
540 | socdev->card->codec = da7210_codec; | |
541 | codec = da7210_codec; | |
542 | ||
543 | /* Register pcms */ | |
544 | ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1); | |
545 | if (ret < 0) | |
546 | goto pcm_err; | |
547 | ||
548 | dev_info(&pdev->dev, "DA7210 Audio Codec %s\n", DA7210_VERSION); | |
549 | ||
550 | pcm_err: | |
551 | return ret; | |
552 | } | |
553 | ||
554 | static int da7210_remove(struct platform_device *pdev) | |
555 | { | |
556 | struct snd_soc_device *socdev = platform_get_drvdata(pdev); | |
557 | ||
558 | snd_soc_free_pcms(socdev); | |
559 | snd_soc_dapm_free(socdev); | |
560 | ||
561 | return 0; | |
562 | } | |
563 | ||
564 | struct snd_soc_codec_device soc_codec_dev_da7210 = { | |
565 | .probe = da7210_probe, | |
566 | .remove = da7210_remove, | |
567 | }; | |
568 | EXPORT_SYMBOL_GPL(soc_codec_dev_da7210); | |
569 | ||
570 | static int __init da7210_modinit(void) | |
571 | { | |
572 | int ret = 0; | |
573 | #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) | |
574 | ret = i2c_add_driver(&da7210_i2c_driver); | |
575 | #endif | |
576 | return ret; | |
577 | } | |
578 | module_init(da7210_modinit); | |
579 | ||
580 | static void __exit da7210_exit(void) | |
581 | { | |
582 | #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) | |
583 | i2c_del_driver(&da7210_i2c_driver); | |
584 | #endif | |
585 | } | |
586 | module_exit(da7210_exit); | |
587 | ||
588 | MODULE_DESCRIPTION("ASoC DA7210 driver"); | |
589 | MODULE_AUTHOR("David Chen, Kuninori Morimoto"); | |
590 | MODULE_LICENSE("GPL"); |