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ASoC: Add indirection for CODEC private data
[net-next-2.6.git] / sound / soc / codecs / stac9766.c
CommitLineData
3c166c7f
JS		 1/*
2 * stac9766.c -- ALSA SoC STAC9766 codec support
3 *
4 * Copyright 2009 Jon Smirl, Digispeaker
5 * Author: Jon Smirl <jonsmirl@gmail.com>
6 *
7 * This program is free software; you can redistribute it and/or modify it
8 * under the terms of the GNU General Public License as published by the
9 * Free Software Foundation; either version 2 of the License, or (at your
10 * option) any later version.
11 *
12 * Features:-
13 *
14 * o Support for AC97 Codec, S/PDIF
15 */
16
17#include <linux/init.h>
18#include <linux/module.h>
19#include <linux/device.h>
20#include <sound/core.h>
21#include <sound/pcm.h>
22#include <sound/ac97_codec.h>
23#include <sound/initval.h>
24#include <sound/pcm_params.h>
25#include <sound/soc.h>
26#include <sound/tlv.h>
27#include <sound/soc-of-simple.h>
28
29#include "stac9766.h"
30
31#define STAC9766_VERSION "0.10"
32
33/*
34 * STAC9766 register cache
35 */
36static const u16 stac9766_reg[] = {
37 0x6A90, 0x8000, 0x8000, 0x8000, /* 6 */
38 0x0000, 0x0000, 0x8008, 0x8008, /* e */
39 0x8808, 0x8808, 0x8808, 0x8808, /* 16 */
40 0x8808, 0x0000, 0x8000, 0x0000, /* 1e */
41 0x0000, 0x0000, 0x0000, 0x000f, /* 26 */
42 0x0a05, 0x0400, 0xbb80, 0x0000, /* 2e */
43 0x0000, 0xbb80, 0x0000, 0x0000, /* 36 */
44 0x0000, 0x2000, 0x0000, 0x0100, /* 3e */
45 0x0000, 0x0000, 0x0080, 0x0000, /* 46 */
46 0x0000, 0x0000, 0x0003, 0xffff, /* 4e */
47 0x0000, 0x0000, 0x0000, 0x0000, /* 56 */
48 0x4000, 0x0000, 0x0000, 0x0000, /* 5e */
49 0x1201, 0xFFFF, 0xFFFF, 0x0000, /* 66 */
50 0x0000, 0x0000, 0x0000, 0x0000, /* 6e */
51 0x0000, 0x0000, 0x0000, 0x0006, /* 76 */
52 0x0000, 0x0000, 0x0000, 0x0000, /* 7e */
53};
54
05e1efa2
MB		 55static const char *stac9766_record_mux[] = {"Mic", "CD", "Video", "AUX",
56 "Line", "Stereo Mix", "Mono Mix", "Phone"};
3c166c7f
JS		 57static const char *stac9766_mono_mux[] = {"Mix", "Mic"};
58static const char *stac9766_mic_mux[] = {"Mic1", "Mic2"};
59static const char *stac9766_SPDIF_mux[] = {"PCM", "ADC Record"};
60static const char *stac9766_popbypass_mux[] = {"Normal", "Bypass Mixer"};
05e1efa2
MB		 61static const char *stac9766_record_all_mux[] = {"All analog",
62 "Analog plus DAC"};
3c166c7f
JS		 63static const char *stac9766_boost1[] = {"0dB", "10dB"};
64static const char *stac9766_boost2[] = {"0dB", "20dB"};
65static const char *stac9766_stereo_mic[] = {"Off", "On"};
66
67static const struct soc_enum stac9766_record_enum =
68 SOC_ENUM_DOUBLE(AC97_REC_SEL, 8, 0, 8, stac9766_record_mux);
69static const struct soc_enum stac9766_mono_enum =
70 SOC_ENUM_SINGLE(AC97_GENERAL_PURPOSE, 9, 2, stac9766_mono_mux);
71static const struct soc_enum stac9766_mic_enum =
72 SOC_ENUM_SINGLE(AC97_GENERAL_PURPOSE, 8, 2, stac9766_mic_mux);
73static const struct soc_enum stac9766_SPDIF_enum =
74 SOC_ENUM_SINGLE(AC97_STAC_DA_CONTROL, 1, 2, stac9766_SPDIF_mux);
75static const struct soc_enum stac9766_popbypass_enum =
76 SOC_ENUM_SINGLE(AC97_GENERAL_PURPOSE, 15, 2, stac9766_popbypass_mux);
77static const struct soc_enum stac9766_record_all_enum =
05e1efa2
MB		 78 SOC_ENUM_SINGLE(AC97_STAC_ANALOG_SPECIAL, 12, 2,
79 stac9766_record_all_mux);
3c166c7f
JS		 80static const struct soc_enum stac9766_boost1_enum =
81 SOC_ENUM_SINGLE(AC97_MIC, 6, 2, stac9766_boost1); /* 0/10dB */
82static const struct soc_enum stac9766_boost2_enum =
83 SOC_ENUM_SINGLE(AC97_STAC_ANALOG_SPECIAL, 2, 2, stac9766_boost2); /* 0/20dB */
84static const struct soc_enum stac9766_stereo_mic_enum =
85 SOC_ENUM_SINGLE(AC97_STAC_STEREO_MIC, 2, 1, stac9766_stereo_mic);
86
87static const DECLARE_TLV_DB_LINEAR(master_tlv, -4600, 0);
88static const DECLARE_TLV_DB_LINEAR(record_tlv, 0, 2250);
89static const DECLARE_TLV_DB_LINEAR(beep_tlv, -4500, 0);
90static const DECLARE_TLV_DB_LINEAR(mix_tlv, -3450, 1200);
91
92static const struct snd_kcontrol_new stac9766_snd_ac97_controls[] = {
93 SOC_DOUBLE_TLV("Speaker Volume", AC97_MASTER, 8, 0, 31, 1, master_tlv),
94 SOC_SINGLE("Speaker Switch", AC97_MASTER, 15, 1, 1),
05e1efa2
MB		 95 SOC_DOUBLE_TLV("Headphone Volume", AC97_HEADPHONE, 8, 0, 31, 1,
96 master_tlv),
3c166c7f 97 SOC_SINGLE("Headphone Switch", AC97_HEADPHONE, 15, 1, 1),
05e1efa2
MB		 98 SOC_SINGLE_TLV("Mono Out Volume", AC97_MASTER_MONO, 0, 31, 1,
99 master_tlv),
3c166c7f
JS		 100 SOC_SINGLE("Mono Out Switch", AC97_MASTER_MONO, 15, 1, 1),
101
102 SOC_DOUBLE_TLV("Record Volume", AC97_REC_GAIN, 8, 0, 15, 0, record_tlv),
103 SOC_SINGLE("Record Switch", AC97_REC_GAIN, 15, 1, 1),
104
105
106 SOC_SINGLE_TLV("Beep Volume", AC97_PC_BEEP, 1, 15, 1, beep_tlv),
107 SOC_SINGLE("Beep Switch", AC97_PC_BEEP, 15, 1, 1),
108 SOC_SINGLE("Beep Frequency", AC97_PC_BEEP, 5, 127, 1),
109 SOC_SINGLE_TLV("Phone Volume", AC97_PHONE, 0, 31, 1, mix_tlv),
110 SOC_SINGLE("Phone Switch", AC97_PHONE, 15, 1, 1),
111
112 SOC_ENUM("Mic Boost1", stac9766_boost1_enum),
113 SOC_ENUM("Mic Boost2", stac9766_boost2_enum),
114 SOC_SINGLE_TLV("Mic Volume", AC97_MIC, 0, 31, 1, mix_tlv),
115 SOC_SINGLE("Mic Switch", AC97_MIC, 15, 1, 1),
116 SOC_ENUM("Stereo Mic", stac9766_stereo_mic_enum),
117
118 SOC_DOUBLE_TLV("Line Volume", AC97_LINE, 8, 0, 31, 1, mix_tlv),
119 SOC_SINGLE("Line Switch", AC97_LINE, 15, 1, 1),
120 SOC_DOUBLE_TLV("CD Volume", AC97_CD, 8, 0, 31, 1, mix_tlv),
121 SOC_SINGLE("CD Switch", AC97_CD, 15, 1, 1),
122 SOC_DOUBLE_TLV("AUX Volume", AC97_AUX, 8, 0, 31, 1, mix_tlv),
123 SOC_SINGLE("AUX Switch", AC97_AUX, 15, 1, 1),
124 SOC_DOUBLE_TLV("Video Volume", AC97_VIDEO, 8, 0, 31, 1, mix_tlv),
125 SOC_SINGLE("Video Switch", AC97_VIDEO, 15, 1, 1),
126
127 SOC_DOUBLE_TLV("DAC Volume", AC97_PCM, 8, 0, 31, 1, mix_tlv),
128 SOC_SINGLE("DAC Switch", AC97_PCM, 15, 1, 1),
129 SOC_SINGLE("Loopback Test Switch", AC97_GENERAL_PURPOSE, 7, 1, 0),
130 SOC_SINGLE("3D Volume", AC97_3D_CONTROL, 3, 2, 1),
131 SOC_SINGLE("3D Switch", AC97_GENERAL_PURPOSE, 13, 1, 0),
132
133 SOC_ENUM("SPDIF Mux", stac9766_SPDIF_enum),
134 SOC_ENUM("Mic1/2 Mux", stac9766_mic_enum),
135 SOC_ENUM("Record All Mux", stac9766_record_all_enum),
136 SOC_ENUM("Record Mux", stac9766_record_enum),
137 SOC_ENUM("Mono Mux", stac9766_mono_enum),
138 SOC_ENUM("Pop Bypass Mux", stac9766_popbypass_enum),
139};
140
05e1efa2
MB		 141static int stac9766_ac97_write(struct snd_soc_codec *codec, unsigned int reg,
142 unsigned int val)
3c166c7f
JS		 143{
144 u16 *cache = codec->reg_cache;
145
146 if (reg > AC97_STAC_PAGE0) {
147 stac9766_ac97_write(codec, AC97_INT_PAGING, 0);
148 soc_ac97_ops.write(codec->ac97, reg, val);
149 stac9766_ac97_write(codec, AC97_INT_PAGING, 1);
150 return 0;
151 }
33e319fb 152 if (reg / 2 >= ARRAY_SIZE(stac9766_reg))
3c166c7f
JS		 153 return -EIO;
154
155 soc_ac97_ops.write(codec->ac97, reg, val);
156 cache[reg / 2] = val;
157 return 0;
158}
159
05e1efa2
MB		 160static unsigned int stac9766_ac97_read(struct snd_soc_codec *codec,
161 unsigned int reg)
3c166c7f
JS		 162{
163 u16 val = 0, *cache = codec->reg_cache;
164
165 if (reg > AC97_STAC_PAGE0) {
166 stac9766_ac97_write(codec, AC97_INT_PAGING, 0);
167 val = soc_ac97_ops.read(codec->ac97, reg - AC97_STAC_PAGE0);
168 stac9766_ac97_write(codec, AC97_INT_PAGING, 1);
169 return val;
170 }
33e319fb 171 if (reg / 2 >= ARRAY_SIZE(stac9766_reg))
3c166c7f
JS		 172 return -EIO;
173
174 if (reg == AC97_RESET || reg == AC97_GPIO_STATUS ||
175 reg == AC97_INT_PAGING || reg == AC97_VENDOR_ID1 ||
176 reg == AC97_VENDOR_ID2) {
177
178 val = soc_ac97_ops.read(codec->ac97, reg);
179 return val;
180 }
181 return cache[reg / 2];
182}
183
184static int ac97_analog_prepare(struct snd_pcm_substream *substream,
05e1efa2 185 struct snd_soc_dai *dai)
3c166c7f
JS		 186{
187 struct snd_soc_codec *codec = dai->codec;
188 struct snd_pcm_runtime *runtime = substream->runtime;
189 unsigned short reg, vra;
190
191 vra = stac9766_ac97_read(codec, AC97_EXTENDED_STATUS);
192
193 vra |= 0x1; /* enable variable rate audio */
75b46c13 194 vra &= ~0x4; /* disable SPDIF output */
3c166c7f
JS		 195
196 stac9766_ac97_write(codec, AC97_EXTENDED_STATUS, vra);
197
198 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
199 reg = AC97_PCM_FRONT_DAC_RATE;
200 else
201 reg = AC97_PCM_LR_ADC_RATE;
202
203 return stac9766_ac97_write(codec, reg, runtime->rate);
204}
205
206static int ac97_digital_prepare(struct snd_pcm_substream *substream,
05e1efa2 207 struct snd_soc_dai *dai)
3c166c7f
JS		 208{
209 struct snd_soc_codec *codec = dai->codec;
210 struct snd_pcm_runtime *runtime = substream->runtime;
211 unsigned short reg, vra;
212
213 stac9766_ac97_write(codec, AC97_SPDIF, 0x2002);
214
215 vra = stac9766_ac97_read(codec, AC97_EXTENDED_STATUS);
216 vra |= 0x5; /* Enable VRA and SPDIF out */
217
218 stac9766_ac97_write(codec, AC97_EXTENDED_STATUS, vra);
219
220 reg = AC97_PCM_FRONT_DAC_RATE;
221
222 return stac9766_ac97_write(codec, reg, runtime->rate);
223}
224
3c166c7f 225static int stac9766_set_bias_level(struct snd_soc_codec *codec,
05e1efa2 226 enum snd_soc_bias_level level)
3c166c7f
JS		 227{
228 switch (level) {
229 case SND_SOC_BIAS_ON: /* full On */
230 case SND_SOC_BIAS_PREPARE: /* partial On */
231 case SND_SOC_BIAS_STANDBY: /* Off, with power */
232 stac9766_ac97_write(codec, AC97_POWERDOWN, 0x0000);
233 break;
234 case SND_SOC_BIAS_OFF: /* Off, without power */
235 /* disable everything including AC link */
236 stac9766_ac97_write(codec, AC97_POWERDOWN, 0xffff);
237 break;
238 }
239 codec->bias_level = level;
240 return 0;
241}
242
05e1efa2 243static int stac9766_reset(struct snd_soc_codec *codec, int try_warm)
3c166c7f
JS		 244{
245 if (try_warm && soc_ac97_ops.warm_reset) {
246 soc_ac97_ops.warm_reset(codec->ac97);
247 if (stac9766_ac97_read(codec, 0) == stac9766_reg[0])
248 return 1;
249 }
250
251 soc_ac97_ops.reset(codec->ac97);
252 if (soc_ac97_ops.warm_reset)
253 soc_ac97_ops.warm_reset(codec->ac97);
254 if (stac9766_ac97_read(codec, 0) != stac9766_reg[0])
255 return -EIO;
256 return 0;
257}
258
259static int stac9766_codec_suspend(struct platform_device *pdev,
05e1efa2 260 pm_message_t state)
3c166c7f
JS		 261{
262 struct snd_soc_device *socdev = platform_get_drvdata(pdev);
263 struct snd_soc_codec *codec = socdev->card->codec;
264
265 stac9766_set_bias_level(codec, SND_SOC_BIAS_OFF);
266 return 0;
267}
268
269static int stac9766_codec_resume(struct platform_device *pdev)
270{
271 struct snd_soc_device *socdev = platform_get_drvdata(pdev);
272 struct snd_soc_codec *codec = socdev->card->codec;
273 u16 id, reset;
274
275 reset = 0;
276 /* give the codec an AC97 warm reset to start the link */
277reset:
278 if (reset > 5) {
279 printk(KERN_ERR "stac9766 failed to resume");
280 return -EIO;
281 }
282 codec->ac97->bus->ops->warm_reset(codec->ac97);
283 id = soc_ac97_ops.read(codec->ac97, AC97_VENDOR_ID2);
284 if (id != 0x4c13) {
285 stac9766_reset(codec, 0);
286 reset++;
287 goto reset;
288 }
289 stac9766_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
290
291 if (codec->suspend_bias_level == SND_SOC_BIAS_ON)
292 stac9766_set_bias_level(codec, SND_SOC_BIAS_ON);
293
294 return 0;
295}
296
05e1efa2 297static struct snd_soc_dai_ops stac9766_dai_ops_analog = {
3c166c7f
JS		 298 .prepare = ac97_analog_prepare,
299};
300
05e1efa2 301static struct snd_soc_dai_ops stac9766_dai_ops_digital = {
3c166c7f 302 .prepare = ac97_digital_prepare,
3c166c7f
JS		 303};
304
305struct snd_soc_dai stac9766_dai[] = {
306{
307 .name = "stac9766 analog",
308 .id = 0,
309 .ac97_control = 1,
310
311 /* stream cababilities */
312 .playback = {
313 .stream_name = "stac9766 analog",
314 .channels_min = 1,
315 .channels_max = 2,
316 .rates = SNDRV_PCM_RATE_8000_48000,
317 .formats = SND_SOC_STD_AC97_FMTS,
318 },
319 .capture = {
320 .stream_name = "stac9766 analog",
321 .channels_min = 1,
322 .channels_max = 2,
323 .rates = SNDRV_PCM_RATE_8000_48000,
324 .formats = SND_SOC_STD_AC97_FMTS,
325 },
326 /* alsa ops */
327 .ops = &stac9766_dai_ops_analog,
328},
329{
330 .name = "stac9766 IEC958",
331 .id = 1,
332 .ac97_control = 1,
333
334 /* stream cababilities */
335 .playback = {
336 .stream_name = "stac9766 IEC958",
337 .channels_min = 1,
338 .channels_max = 2,
339 .rates = SNDRV_PCM_RATE_32000 | \
340 SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000,
341 .formats = SNDRV_PCM_FORMAT_IEC958_SUBFRAME_BE,
342 },
343 /* alsa ops */
344 .ops = &stac9766_dai_ops_digital,
05e1efa2
MB		 345}
346};
3c166c7f
JS		 347EXPORT_SYMBOL_GPL(stac9766_dai);
348
349static int stac9766_codec_probe(struct platform_device *pdev)
350{
351 struct snd_soc_device *socdev = platform_get_drvdata(pdev);
352 struct snd_soc_codec *codec;
353 int ret = 0;
354
355 printk(KERN_INFO "STAC9766 SoC Audio Codec %s\n", STAC9766_VERSION);
356
357 socdev->card->codec = kzalloc(sizeof(struct snd_soc_codec), GFP_KERNEL);
358 if (socdev->card->codec == NULL)
359 return -ENOMEM;
360 codec = socdev->card->codec;
361 mutex_init(&codec->mutex);
362
05e1efa2
MB		 363 codec->reg_cache = kmemdup(stac9766_reg, sizeof(stac9766_reg),
364 GFP_KERNEL);
3c166c7f
JS		 365 if (codec->reg_cache == NULL) {
366 ret = -ENOMEM;
367 goto cache_err;
368 }
369 codec->reg_cache_size = sizeof(stac9766_reg);
370 codec->reg_cache_step = 2;
371
372 codec->name = "STAC9766";
373 codec->owner = THIS_MODULE;
374 codec->dai = stac9766_dai;
375 codec->num_dai = ARRAY_SIZE(stac9766_dai);
376 codec->write = stac9766_ac97_write;
377 codec->read = stac9766_ac97_read;
378 codec->set_bias_level = stac9766_set_bias_level;
379 INIT_LIST_HEAD(&codec->dapm_widgets);
380 INIT_LIST_HEAD(&codec->dapm_paths);
381
382 ret = snd_soc_new_ac97_codec(codec, &soc_ac97_ops, 0);
383 if (ret < 0)
384 goto codec_err;
385
386 /* register pcms */
387 ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1);
388 if (ret < 0)
389 goto pcm_err;
390
391 /* do a cold reset for the controller and then try
392 * a warm reset followed by an optional cold reset for codec */
393 stac9766_reset(codec, 0);
394 ret = stac9766_reset(codec, 1);
395 if (ret < 0) {
396 printk(KERN_ERR "Failed to reset STAC9766: AC97 link error\n");
397 goto reset_err;
398 }
399
400 stac9766_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
401
05e1efa2
MB		 402 snd_soc_add_controls(codec, stac9766_snd_ac97_controls,
403 ARRAY_SIZE(stac9766_snd_ac97_controls));
3c166c7f 404
3c166c7f
JS		 405 return 0;
406
407reset_err:
408 snd_soc_free_pcms(socdev);
409pcm_err:
410 snd_soc_free_ac97_codec(codec);
411codec_err:
b2c812e2 412 kfree(snd_soc_codec_get_drvdata(codec));
3c166c7f
JS		 413cache_err:
414 kfree(socdev->card->codec);
415 socdev->card->codec = NULL;
416 return ret;
417}
418
419static int stac9766_codec_remove(struct platform_device *pdev)
420{
421 struct snd_soc_device *socdev = platform_get_drvdata(pdev);
422 struct snd_soc_codec *codec = socdev->card->codec;
423
424 if (codec == NULL)
425 return 0;
426
427 snd_soc_free_pcms(socdev);
428 snd_soc_free_ac97_codec(codec);
429 kfree(codec->reg_cache);
430 kfree(codec);
431 return 0;
432}
433
05e1efa2 434struct snd_soc_codec_device soc_codec_dev_stac9766 = {
3c166c7f
JS		 435 .probe = stac9766_codec_probe,
436 .remove = stac9766_codec_remove,
437 .suspend = stac9766_codec_suspend,
438 .resume = stac9766_codec_resume,
439};
440EXPORT_SYMBOL_GPL(soc_codec_dev_stac9766);
441
3c166c7f
JS		 442MODULE_DESCRIPTION("ASoC stac9766 driver");
443MODULE_AUTHOR("Jon Smirl <jonsmirl@gmail.com>");
444MODULE_LICENSE("GPL");
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