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-rw-r--r--sound/soc/codecs/da7210.c589
1 files changed, 589 insertions, 0 deletions
diff --git a/sound/soc/codecs/da7210.c b/sound/soc/codecs/da7210.c
new file mode 100644
index 000000000000..cf2975a7294a
--- /dev/null
+++ b/sound/soc/codecs/da7210.c
@@ -0,0 +1,589 @@
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
84/* DAC_HPF fields */
85#define DA7210_DAC_VOICE_EN (1 << 7)
86
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 */
131struct da7210_priv {
132 struct snd_soc_codec codec;
133};
134
135static struct snd_soc_codec *da7210_codec;
136
137/*
138 * Register cache
139 */
140static 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 */
164static 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 */
174static 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 */
197static 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
205static 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 */
236static 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 */
294static 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 */
338static 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
344struct 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};
365EXPORT_SYMBOL_GPL(da7210_dai);
366
367/*
368 * Initialize the DA7210 driver
369 * register the mixer and dsp interfaces with the kernel
370 */
371static 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
465init_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)
474static int __devinit da7210_i2c_probe(struct i2c_client *i2c,
475 const struct i2c_device_id *id)
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
498static int __devexit da7210_i2c_remove(struct i2c_client *client)
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
510static const struct i2c_device_id da7210_i2c_id[] = {
511 { "da7210", 0 },
512 { }
513};
514MODULE_DEVICE_TABLE(i2c, da7210_i2c_id);
515
516/* I2C codec control layer */
517static 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
528static 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
549pcm_err:
550 return ret;
551}
552
553static 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
563struct snd_soc_codec_device soc_codec_dev_da7210 = {
564 .probe = da7210_probe,
565 .remove = da7210_remove,
566};
567EXPORT_SYMBOL_GPL(soc_codec_dev_da7210);
568
569static 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}
577module_init(da7210_modinit);
578
579static 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}
585module_exit(da7210_exit);
586
587MODULE_DESCRIPTION("ASoC DA7210 driver");
588MODULE_AUTHOR("David Chen, Kuninori Morimoto");
589MODULE_LICENSE("GPL");
generated by cgit v1.2.2 (git 2.25.0) at 2025-02-02 00:34:17 -0500