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-rw-r--r--sound/soc/codecs/Kconfig3
-rw-r--r--sound/soc/codecs/Makefile2
-rw-r--r--sound/soc/codecs/ad1836.c451
-rw-r--r--sound/soc/codecs/ad1836.h64
4 files changed, 520 insertions, 0 deletions
diff --git a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig
index 31a6d2111ed0..05e227953cf0 100644
--- a/sound/soc/codecs/Kconfig
+++ b/sound/soc/codecs/Kconfig
@@ -68,6 +68,9 @@ config SND_SOC_AC97_CODEC
68 tristate 68 tristate
69 select SND_AC97_CODEC 69 select SND_AC97_CODEC
70 70
71config SND_SOC_AD1836
72 tristate
73
71config SND_SOC_AD1938 74config SND_SOC_AD1938
72 tristate 75 tristate
73 76
diff --git a/sound/soc/codecs/Makefile b/sound/soc/codecs/Makefile
index 78dce5d3fa22..9cbcf8f5b880 100644
--- a/sound/soc/codecs/Makefile
+++ b/sound/soc/codecs/Makefile
@@ -1,4 +1,5 @@
1snd-soc-ac97-objs := ac97.o 1snd-soc-ac97-objs := ac97.o
2snd-soc-ad1836-objs := ad1836.o
2snd-soc-ad1938-objs := ad1938.o 3snd-soc-ad1938-objs := ad1938.o
3snd-soc-ad1980-objs := ad1980.o 4snd-soc-ad1980-objs := ad1980.o
4snd-soc-ad73311-objs := ad73311.o 5snd-soc-ad73311-objs := ad73311.o
@@ -45,6 +46,7 @@ snd-soc-wm9713-objs := wm9713.o
45snd-soc-max9877-objs := max9877.o 46snd-soc-max9877-objs := max9877.o
46 47
47obj-$(CONFIG_SND_SOC_AC97_CODEC) += snd-soc-ac97.o 48obj-$(CONFIG_SND_SOC_AC97_CODEC) += snd-soc-ac97.o
49obj-$(CONFIG_SND_SOC_AD1836) += snd-soc-ad1836.o
48obj-$(CONFIG_SND_SOC_AD1938) += snd-soc-ad1938.o 50obj-$(CONFIG_SND_SOC_AD1938) += snd-soc-ad1938.o
49obj-$(CONFIG_SND_SOC_AD1980) += snd-soc-ad1980.o 51obj-$(CONFIG_SND_SOC_AD1980) += snd-soc-ad1980.o
50obj-$(CONFIG_SND_SOC_AD73311) += snd-soc-ad73311.o 52obj-$(CONFIG_SND_SOC_AD73311) += snd-soc-ad73311.o
diff --git a/sound/soc/codecs/ad1836.c b/sound/soc/codecs/ad1836.c
new file mode 100644
index 000000000000..79b9d198a61d
--- /dev/null
+++ b/sound/soc/codecs/ad1836.c
@@ -0,0 +1,451 @@
1/*
2 * File: sound/soc/codecs/ad1836.c
3 * Author: Barry Song <Barry.Song@analog.com>
4 *
5 * Created: Aug 04 2009
6 * Description: Driver for AD1836 sound chip
7 *
8 * Modified:
9 * Copyright 2009 Analog Devices Inc.
10 *
11 * Bugs: Enter bugs at http://blackfin.uclinux.org/
12 *
13 * This program is free software; you can redistribute it and/or modify
14 * it under the terms of the GNU General Public License as published by
15 * the Free Software Foundation; either version 2 of the License, or
16 * (at your option) any later version.
17 */
18
19#include <linux/init.h>
20#include <linux/module.h>
21#include <linux/version.h>
22#include <linux/kernel.h>
23#include <linux/device.h>
24#include <sound/core.h>
25#include <sound/pcm.h>
26#include <sound/pcm_params.h>
27#include <sound/initval.h>
28#include <sound/soc.h>
29#include <sound/tlv.h>
30#include <sound/soc-dapm.h>
31#include <linux/spi/spi.h>
32#include "ad1836.h"
33
34/* codec private data */
35struct ad1836_priv {
36 struct snd_soc_codec codec;
37 u16 reg_cache[AD1836_NUM_REGS];
38};
39
40static struct snd_soc_codec *ad1836_codec;
41struct snd_soc_codec_device soc_codec_dev_ad1836;
42static int ad1836_register(struct ad1836_priv *ad1836);
43static void ad1836_unregister(struct ad1836_priv *ad1836);
44
45/*
46 * AD1836 volume/mute/de-emphasis etc. controls
47 */
48static const char *ad1836_deemp[] = {"None", "44.1kHz", "32kHz", "48kHz"};
49
50static const struct soc_enum ad1836_deemp_enum =
51 SOC_ENUM_SINGLE(AD1836_DAC_CTRL1, 8, 4, ad1836_deemp);
52
53static const struct snd_kcontrol_new ad1836_snd_controls[] = {
54 /* DAC volume control */
55 SOC_DOUBLE_R("DAC1 Volume", AD1836_DAC_L1_VOL,
56 AD1836_DAC_R1_VOL, 0, 0x3FF, 0),
57 SOC_DOUBLE_R("DAC2 Volume", AD1836_DAC_L2_VOL,
58 AD1836_DAC_R2_VOL, 0, 0x3FF, 0),
59 SOC_DOUBLE_R("DAC3 Volume", AD1836_DAC_L3_VOL,
60 AD1836_DAC_R3_VOL, 0, 0x3FF, 0),
61
62 /* ADC switch control */
63 SOC_DOUBLE("ADC1 Switch", AD1836_ADC_CTRL2, AD1836_ADCL1_MUTE,
64 AD1836_ADCR1_MUTE, 1, 1),
65 SOC_DOUBLE("ADC2 Switch", AD1836_ADC_CTRL2, AD1836_ADCL2_MUTE,
66 AD1836_ADCR2_MUTE, 1, 1),
67
68 /* DAC switch control */
69 SOC_DOUBLE("DAC1 Switch", AD1836_DAC_CTRL2, AD1836_DACL1_MUTE,
70 AD1836_DACR1_MUTE, 1, 1),
71 SOC_DOUBLE("DAC2 Switch", AD1836_DAC_CTRL2, AD1836_DACL2_MUTE,
72 AD1836_DACR2_MUTE, 1, 1),
73 SOC_DOUBLE("DAC3 Switch", AD1836_DAC_CTRL2, AD1836_DACL3_MUTE,
74 AD1836_DACR3_MUTE, 1, 1),
75
76 /* ADC high-pass filter */
77 SOC_SINGLE("ADC High Pass Filter Switch", AD1836_ADC_CTRL1,
78 AD1836_ADC_HIGHPASS_FILTER, 1, 0),
79
80 /* DAC de-emphasis */
81 SOC_ENUM("Playback Deemphasis", ad1836_deemp_enum),
82};
83
84static const struct snd_soc_dapm_widget ad1836_dapm_widgets[] = {
85 SND_SOC_DAPM_DAC("DAC", "Playback", AD1836_DAC_CTRL1,
86 AD1836_DAC_POWERDOWN, 1),
87 SND_SOC_DAPM_ADC("ADC", "Capture", SND_SOC_NOPM, 0, 0),
88 SND_SOC_DAPM_SUPPLY("ADC_PWR", AD1836_ADC_CTRL1,
89 AD1836_ADC_POWERDOWN, 1, NULL, 0),
90 SND_SOC_DAPM_OUTPUT("DAC1OUT"),
91 SND_SOC_DAPM_OUTPUT("DAC2OUT"),
92 SND_SOC_DAPM_OUTPUT("DAC3OUT"),
93 SND_SOC_DAPM_INPUT("ADC1IN"),
94 SND_SOC_DAPM_INPUT("ADC2IN"),
95};
96
97static const struct snd_soc_dapm_route audio_paths[] = {
98 { "DAC", NULL, "ADC_PWR" },
99 { "ADC", NULL, "ADC_PWR" },
100 { "DAC1OUT", "DAC1 Switch", "DAC" },
101 { "DAC2OUT", "DAC2 Switch", "DAC" },
102 { "DAC3OUT", "DAC3 Switch", "DAC" },
103 { "ADC", "ADC1 Switch", "ADC1IN" },
104 { "ADC", "ADC2 Switch", "ADC2IN" },
105};
106
107/*
108 * DAI ops entries
109 */
110
111static int ad1836_set_dai_fmt(struct snd_soc_dai *codec_dai,
112 unsigned int fmt)
113{
114 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
115 /* at present, we support adc aux mode to interface with
116 * blackfin sport tdm mode
117 */
118 case SND_SOC_DAIFMT_DSP_A:
119 break;
120 default:
121 return -EINVAL;
122 }
123
124 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
125 case SND_SOC_DAIFMT_IB_IF:
126 break;
127 default:
128 return -EINVAL;
129 }
130
131 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
132 /* ALCLK,ABCLK are both output, AD1836 can only be master */
133 case SND_SOC_DAIFMT_CBM_CFM:
134 break;
135 default:
136 return -EINVAL;
137 }
138
139 return 0;
140}
141
142static int ad1836_hw_params(struct snd_pcm_substream *substream,
143 struct snd_pcm_hw_params *params,
144 struct snd_soc_dai *dai)
145{
146 int word_len = 0;
147
148 struct snd_soc_pcm_runtime *rtd = substream->private_data;
149 struct snd_soc_device *socdev = rtd->socdev;
150 struct snd_soc_codec *codec = socdev->card->codec;
151
152 /* bit size */
153 switch (params_format(params)) {
154 case SNDRV_PCM_FORMAT_S16_LE:
155 word_len = 3;
156 break;
157 case SNDRV_PCM_FORMAT_S20_3LE:
158 word_len = 1;
159 break;
160 case SNDRV_PCM_FORMAT_S24_LE:
161 case SNDRV_PCM_FORMAT_S32_LE:
162 word_len = 0;
163 break;
164 }
165
166 snd_soc_update_bits(codec, AD1836_DAC_CTRL1,
167 AD1836_DAC_WORD_LEN_MASK, word_len);
168
169 snd_soc_update_bits(codec, AD1836_ADC_CTRL2,
170 AD1836_ADC_WORD_LEN_MASK, word_len);
171
172 return 0;
173}
174
175
176/*
177 * interface to read/write ad1836 register
178 */
179#define AD1836_SPI_REG_SHFT 12
180#define AD1836_SPI_READ (1 << 11)
181#define AD1836_SPI_VAL_MSK 0x3FF
182
183/*
184 * write to the ad1836 register space
185 */
186
187static int ad1836_write_reg(struct snd_soc_codec *codec, unsigned int reg,
188 unsigned int value)
189{
190 u16 *reg_cache = codec->reg_cache;
191 int ret = 0;
192
193 if (value != reg_cache[reg]) {
194 unsigned short buf;
195 struct spi_transfer t = {
196 .tx_buf = &buf,
197 .len = 2,
198 };
199 struct spi_message m;
200
201 buf = (reg << AD1836_SPI_REG_SHFT) |
202 (value & AD1836_SPI_VAL_MSK);
203 spi_message_init(&m);
204 spi_message_add_tail(&t, &m);
205 ret = spi_sync(codec->control_data, &m);
206 if (ret == 0)
207 reg_cache[reg] = value;
208 }
209
210 return ret;
211}
212
213/*
214 * read from the ad1836 register space cache
215 */
216static unsigned int ad1836_read_reg_cache(struct snd_soc_codec *codec,
217 unsigned int reg)
218{
219 u16 *reg_cache = codec->reg_cache;
220
221 if (reg >= codec->reg_cache_size)
222 return -EINVAL;
223
224 return reg_cache[reg];
225}
226
227static int __devinit ad1836_spi_probe(struct spi_device *spi)
228{
229 struct snd_soc_codec *codec;
230 struct ad1836_priv *ad1836;
231
232 ad1836 = kzalloc(sizeof(struct ad1836_priv), GFP_KERNEL);
233 if (ad1836 == NULL)
234 return -ENOMEM;
235
236 codec = &ad1836->codec;
237 codec->control_data = spi;
238 codec->dev = &spi->dev;
239
240 dev_set_drvdata(&spi->dev, ad1836);
241
242 return ad1836_register(ad1836);
243}
244
245static int __devexit ad1836_spi_remove(struct spi_device *spi)
246{
247 struct ad1836_priv *ad1836 = dev_get_drvdata(&spi->dev);
248
249 ad1836_unregister(ad1836);
250 return 0;
251}
252
253static struct spi_driver ad1836_spi_driver = {
254 .driver = {
255 .name = "ad1836-spi",
256 .bus = &spi_bus_type,
257 .owner = THIS_MODULE,
258 },
259 .probe = ad1836_spi_probe,
260 .remove = __devexit_p(ad1836_spi_remove),
261};
262
263static struct snd_soc_dai_ops ad1836_dai_ops = {
264 .hw_params = ad1836_hw_params,
265 .set_fmt = ad1836_set_dai_fmt,
266};
267
268/* codec DAI instance */
269struct snd_soc_dai ad1836_dai = {
270 .name = "AD1836",
271 .playback = {
272 .stream_name = "Playback",
273 .channels_min = 2,
274 .channels_max = 6,
275 .rates = SNDRV_PCM_RATE_48000,
276 .formats = SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S16_LE |
277 SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S24_LE,
278 },
279 .capture = {
280 .stream_name = "Capture",
281 .channels_min = 2,
282 .channels_max = 4,
283 .rates = SNDRV_PCM_RATE_48000,
284 .formats = SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S16_LE |
285 SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S24_LE,
286 },
287 .ops = &ad1836_dai_ops,
288};
289EXPORT_SYMBOL_GPL(ad1836_dai);
290
291static int ad1836_register(struct ad1836_priv *ad1836)
292{
293 int ret;
294 struct snd_soc_codec *codec = &ad1836->codec;
295
296 if (ad1836_codec) {
297 dev_err(codec->dev, "Another ad1836 is registered\n");
298 return -EINVAL;
299 }
300
301 mutex_init(&codec->mutex);
302 INIT_LIST_HEAD(&codec->dapm_widgets);
303 INIT_LIST_HEAD(&codec->dapm_paths);
304 codec->private_data = ad1836;
305 codec->reg_cache = ad1836->reg_cache;
306 codec->reg_cache_size = AD1836_NUM_REGS;
307 codec->name = "AD1836";
308 codec->owner = THIS_MODULE;
309 codec->dai = &ad1836_dai;
310 codec->num_dai = 1;
311 codec->write = ad1836_write_reg;
312 codec->read = ad1836_read_reg_cache;
313 INIT_LIST_HEAD(&codec->dapm_widgets);
314 INIT_LIST_HEAD(&codec->dapm_paths);
315
316 ad1836_dai.dev = codec->dev;
317 ad1836_codec = codec;
318
319 /* default setting for ad1836 */
320 /* de-emphasis: 48kHz, power-on dac */
321 codec->write(codec, AD1836_DAC_CTRL1, 0x300);
322 /* unmute dac channels */
323 codec->write(codec, AD1836_DAC_CTRL2, 0x0);
324 /* high-pass filter enable, power-on adc */
325 codec->write(codec, AD1836_ADC_CTRL1, 0x100);
326 /* unmute adc channles, adc aux mode */
327 codec->write(codec, AD1836_ADC_CTRL2, 0x180);
328 /* left/right diff:PGA/MUX */
329 codec->write(codec, AD1836_ADC_CTRL3, 0x3A);
330 /* volume */
331 codec->write(codec, AD1836_DAC_L1_VOL, 0x3FF);
332 codec->write(codec, AD1836_DAC_R1_VOL, 0x3FF);
333 codec->write(codec, AD1836_DAC_L2_VOL, 0x3FF);
334 codec->write(codec, AD1836_DAC_R2_VOL, 0x3FF);
335 codec->write(codec, AD1836_DAC_L3_VOL, 0x3FF);
336 codec->write(codec, AD1836_DAC_R3_VOL, 0x3FF);
337
338 ret = snd_soc_register_codec(codec);
339 if (ret != 0) {
340 dev_err(codec->dev, "Failed to register codec: %d\n", ret);
341 kfree(ad1836);
342 return ret;
343 }
344
345 ret = snd_soc_register_dai(&ad1836_dai);
346 if (ret != 0) {
347 dev_err(codec->dev, "Failed to register DAI: %d\n", ret);
348 snd_soc_unregister_codec(codec);
349 kfree(ad1836);
350 return ret;
351 }
352
353 return 0;
354}
355
356static void ad1836_unregister(struct ad1836_priv *ad1836)
357{
358 snd_soc_unregister_dai(&ad1836_dai);
359 snd_soc_unregister_codec(&ad1836->codec);
360 kfree(ad1836);
361 ad1836_codec = NULL;
362}
363
364static int ad1836_probe(struct platform_device *pdev)
365{
366 struct snd_soc_device *socdev = platform_get_drvdata(pdev);
367 struct snd_soc_codec *codec;
368 int ret = 0;
369
370 if (ad1836_codec == NULL) {
371 dev_err(&pdev->dev, "Codec device not registered\n");
372 return -ENODEV;
373 }
374
375 socdev->card->codec = ad1836_codec;
376 codec = ad1836_codec;
377
378 /* register pcms */
379 ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1);
380 if (ret < 0) {
381 dev_err(codec->dev, "failed to create pcms: %d\n", ret);
382 goto pcm_err;
383 }
384
385 snd_soc_add_controls(codec, ad1836_snd_controls,
386 ARRAY_SIZE(ad1836_snd_controls));
387 snd_soc_dapm_new_controls(codec, ad1836_dapm_widgets,
388 ARRAY_SIZE(ad1836_dapm_widgets));
389 snd_soc_dapm_add_routes(codec, audio_paths, ARRAY_SIZE(audio_paths));
390 snd_soc_dapm_new_widgets(codec);
391
392 ret = snd_soc_init_card(socdev);
393 if (ret < 0) {
394 dev_err(codec->dev, "failed to register card: %d\n", ret);
395 goto card_err;
396 }
397
398 return ret;
399
400card_err:
401 snd_soc_free_pcms(socdev);
402 snd_soc_dapm_free(socdev);
403pcm_err:
404 return ret;
405}
406
407/* power down chip */
408static int ad1836_remove(struct platform_device *pdev)
409{
410 struct snd_soc_device *socdev = platform_get_drvdata(pdev);
411
412 snd_soc_free_pcms(socdev);
413 snd_soc_dapm_free(socdev);
414
415 return 0;
416}
417
418struct snd_soc_codec_device soc_codec_dev_ad1836 = {
419 .probe = ad1836_probe,
420 .remove = ad1836_remove,
421 /* The power management of ad1836 is very simple. There are
422 * only adc&dac 2 components to control. Dapm handles them.
423 */
424 .suspend = NULL,
425 .resume = NULL,
426};
427EXPORT_SYMBOL_GPL(soc_codec_dev_ad1836);
428
429static int __init ad1836_init(void)
430{
431 int ret;
432
433 ret = spi_register_driver(&ad1836_spi_driver);
434 if (ret != 0) {
435 printk(KERN_ERR "Failed to register ad1836 SPI driver: %d\n",
436 ret);
437 }
438
439 return ret;
440}
441module_init(ad1836_init);
442
443static void __exit ad1836_exit(void)
444{
445 spi_unregister_driver(&ad1836_spi_driver);
446}
447module_exit(ad1836_exit);
448
449MODULE_DESCRIPTION("ASoC ad1836 driver");
450MODULE_AUTHOR("Barry Song <21cnbao@gmail.com>");
451MODULE_LICENSE("GPL");
diff --git a/sound/soc/codecs/ad1836.h b/sound/soc/codecs/ad1836.h
new file mode 100644
index 000000000000..7660ee6973c0
--- /dev/null
+++ b/sound/soc/codecs/ad1836.h
@@ -0,0 +1,64 @@
1/*
2 * File: sound/soc/codecs/ad1836.h
3 * Based on:
4 * Author: Barry Song <Barry.Song@analog.com>
5 *
6 * Created: Aug 04, 2009
7 * Description: definitions for AD1836 registers
8 *
9 * Modified:
10 *
11 * Bugs: Enter bugs at http://blackfin.uclinux.org/
12 *
13 * This program is free software; you can redistribute it and/or modify
14 * it under the terms of the GNU General Public License as published by
15 * the Free Software Foundation; either version 2 of the License, or
16 * (at your option) any later version.
17 */
18
19#ifndef __AD1836_H__
20#define __AD1836_H__
21
22#define AD1836_DAC_CTRL1 0
23#define AD1836_DAC_POWERDOWN 2
24#define AD1836_DAC_SERFMT_MASK 0xE0
25#define AD1836_DAC_SERFMT_PCK256 (0x4 << 5)
26#define AD1836_DAC_SERFMT_PCK128 (0x5 << 5)
27#define AD1836_DAC_WORD_LEN_MASK 0x18
28
29#define AD1836_DAC_CTRL2 1
30#define AD1836_DACL1_MUTE 0
31#define AD1836_DACR1_MUTE 1
32#define AD1836_DACL2_MUTE 2
33#define AD1836_DACR2_MUTE 3
34#define AD1836_DACL3_MUTE 4
35#define AD1836_DACR3_MUTE 5
36
37#define AD1836_DAC_L1_VOL 2
38#define AD1836_DAC_R1_VOL 3
39#define AD1836_DAC_L2_VOL 4
40#define AD1836_DAC_R2_VOL 5
41#define AD1836_DAC_L3_VOL 6
42#define AD1836_DAC_R3_VOL 7
43
44#define AD1836_ADC_CTRL1 12
45#define AD1836_ADC_POWERDOWN 7
46#define AD1836_ADC_HIGHPASS_FILTER 8
47
48#define AD1836_ADC_CTRL2 13
49#define AD1836_ADCL1_MUTE 0
50#define AD1836_ADCR1_MUTE 1
51#define AD1836_ADCL2_MUTE 2
52#define AD1836_ADCR2_MUTE 3
53#define AD1836_ADC_WORD_LEN_MASK 0x30
54#define AD1836_ADC_SERFMT_MASK (7 << 6)
55#define AD1836_ADC_SERFMT_PCK256 (0x4 << 6)
56#define AD1836_ADC_SERFMT_PCK128 (0x5 << 6)
57
58#define AD1836_ADC_CTRL3 14
59
60#define AD1836_NUM_REGS 16
61
62extern struct snd_soc_dai ad1836_dai;
63extern struct snd_soc_codec_device soc_codec_dev_ad1836;
64#endif