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include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit...
[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>
5a0e3ad6 18#include <linux/slab.h>
3c166c7f
JS		 19#include <linux/module.h>
20#include <linux/device.h>
21#include <sound/core.h>
22#include <sound/pcm.h>
23#include <sound/ac97_codec.h>
24#include <sound/initval.h>
25#include <sound/pcm_params.h>
26#include <sound/soc.h>
27#include <sound/tlv.h>
28#include <sound/soc-of-simple.h>
29
30#include "stac9766.h"
31
32#define STAC9766_VERSION "0.10"
33
34/*
35 * STAC9766 register cache
36 */
37static const u16 stac9766_reg[] = {
38 0x6A90, 0x8000, 0x8000, 0x8000, /* 6 */
39 0x0000, 0x0000, 0x8008, 0x8008, /* e */
40 0x8808, 0x8808, 0x8808, 0x8808, /* 16 */
41 0x8808, 0x0000, 0x8000, 0x0000, /* 1e */
42 0x0000, 0x0000, 0x0000, 0x000f, /* 26 */
43 0x0a05, 0x0400, 0xbb80, 0x0000, /* 2e */
44 0x0000, 0xbb80, 0x0000, 0x0000, /* 36 */
45 0x0000, 0x2000, 0x0000, 0x0100, /* 3e */
46 0x0000, 0x0000, 0x0080, 0x0000, /* 46 */
47 0x0000, 0x0000, 0x0003, 0xffff, /* 4e */
48 0x0000, 0x0000, 0x0000, 0x0000, /* 56 */
49 0x4000, 0x0000, 0x0000, 0x0000, /* 5e */
50 0x1201, 0xFFFF, 0xFFFF, 0x0000, /* 66 */
51 0x0000, 0x0000, 0x0000, 0x0000, /* 6e */
52 0x0000, 0x0000, 0x0000, 0x0006, /* 76 */
53 0x0000, 0x0000, 0x0000, 0x0000, /* 7e */
54};
55
05e1efa2
MB		 56static const char *stac9766_record_mux[] = {"Mic", "CD", "Video", "AUX",
57 "Line", "Stereo Mix", "Mono Mix", "Phone"};
3c166c7f
JS		 58static const char *stac9766_mono_mux[] = {"Mix", "Mic"};
59static const char *stac9766_mic_mux[] = {"Mic1", "Mic2"};
60static const char *stac9766_SPDIF_mux[] = {"PCM", "ADC Record"};
61static const char *stac9766_popbypass_mux[] = {"Normal", "Bypass Mixer"};
05e1efa2
MB		 62static const char *stac9766_record_all_mux[] = {"All analog",
63 "Analog plus DAC"};
3c166c7f
JS		 64static const char *stac9766_boost1[] = {"0dB", "10dB"};
65static const char *stac9766_boost2[] = {"0dB", "20dB"};
66static const char *stac9766_stereo_mic[] = {"Off", "On"};
67
68static const struct soc_enum stac9766_record_enum =
69 SOC_ENUM_DOUBLE(AC97_REC_SEL, 8, 0, 8, stac9766_record_mux);
70static const struct soc_enum stac9766_mono_enum =
71 SOC_ENUM_SINGLE(AC97_GENERAL_PURPOSE, 9, 2, stac9766_mono_mux);
72static const struct soc_enum stac9766_mic_enum =
73 SOC_ENUM_SINGLE(AC97_GENERAL_PURPOSE, 8, 2, stac9766_mic_mux);
74static const struct soc_enum stac9766_SPDIF_enum =
75 SOC_ENUM_SINGLE(AC97_STAC_DA_CONTROL, 1, 2, stac9766_SPDIF_mux);
76static const struct soc_enum stac9766_popbypass_enum =
77 SOC_ENUM_SINGLE(AC97_GENERAL_PURPOSE, 15, 2, stac9766_popbypass_mux);
78static const struct soc_enum stac9766_record_all_enum =
05e1efa2
MB		 79 SOC_ENUM_SINGLE(AC97_STAC_ANALOG_SPECIAL, 12, 2,
80 stac9766_record_all_mux);
3c166c7f
JS		 81static const struct soc_enum stac9766_boost1_enum =
82 SOC_ENUM_SINGLE(AC97_MIC, 6, 2, stac9766_boost1); /* 0/10dB */
83static const struct soc_enum stac9766_boost2_enum =
84 SOC_ENUM_SINGLE(AC97_STAC_ANALOG_SPECIAL, 2, 2, stac9766_boost2); /* 0/20dB */
85static const struct soc_enum stac9766_stereo_mic_enum =
86 SOC_ENUM_SINGLE(AC97_STAC_STEREO_MIC, 2, 1, stac9766_stereo_mic);
87
88static const DECLARE_TLV_DB_LINEAR(master_tlv, -4600, 0);
89static const DECLARE_TLV_DB_LINEAR(record_tlv, 0, 2250);
90static const DECLARE_TLV_DB_LINEAR(beep_tlv, -4500, 0);
91static const DECLARE_TLV_DB_LINEAR(mix_tlv, -3450, 1200);
92
93static const struct snd_kcontrol_new stac9766_snd_ac97_controls[] = {
94 SOC_DOUBLE_TLV("Speaker Volume", AC97_MASTER, 8, 0, 31, 1, master_tlv),
95 SOC_SINGLE("Speaker Switch", AC97_MASTER, 15, 1, 1),
05e1efa2
MB		 96 SOC_DOUBLE_TLV("Headphone Volume", AC97_HEADPHONE, 8, 0, 31, 1,
97 master_tlv),
3c166c7f 98 SOC_SINGLE("Headphone Switch", AC97_HEADPHONE, 15, 1, 1),
05e1efa2
MB		 99 SOC_SINGLE_TLV("Mono Out Volume", AC97_MASTER_MONO, 0, 31, 1,
100 master_tlv),
3c166c7f
JS		 101 SOC_SINGLE("Mono Out Switch", AC97_MASTER_MONO, 15, 1, 1),
102
103 SOC_DOUBLE_TLV("Record Volume", AC97_REC_GAIN, 8, 0, 15, 0, record_tlv),
104 SOC_SINGLE("Record Switch", AC97_REC_GAIN, 15, 1, 1),
105
106
107 SOC_SINGLE_TLV("Beep Volume", AC97_PC_BEEP, 1, 15, 1, beep_tlv),
108 SOC_SINGLE("Beep Switch", AC97_PC_BEEP, 15, 1, 1),
109 SOC_SINGLE("Beep Frequency", AC97_PC_BEEP, 5, 127, 1),
110 SOC_SINGLE_TLV("Phone Volume", AC97_PHONE, 0, 31, 1, mix_tlv),
111 SOC_SINGLE("Phone Switch", AC97_PHONE, 15, 1, 1),
112
113 SOC_ENUM("Mic Boost1", stac9766_boost1_enum),
114 SOC_ENUM("Mic Boost2", stac9766_boost2_enum),
115 SOC_SINGLE_TLV("Mic Volume", AC97_MIC, 0, 31, 1, mix_tlv),
116 SOC_SINGLE("Mic Switch", AC97_MIC, 15, 1, 1),
117 SOC_ENUM("Stereo Mic", stac9766_stereo_mic_enum),
118
119 SOC_DOUBLE_TLV("Line Volume", AC97_LINE, 8, 0, 31, 1, mix_tlv),
120 SOC_SINGLE("Line Switch", AC97_LINE, 15, 1, 1),
121 SOC_DOUBLE_TLV("CD Volume", AC97_CD, 8, 0, 31, 1, mix_tlv),
122 SOC_SINGLE("CD Switch", AC97_CD, 15, 1, 1),
123 SOC_DOUBLE_TLV("AUX Volume", AC97_AUX, 8, 0, 31, 1, mix_tlv),
124 SOC_SINGLE("AUX Switch", AC97_AUX, 15, 1, 1),
125 SOC_DOUBLE_TLV("Video Volume", AC97_VIDEO, 8, 0, 31, 1, mix_tlv),
126 SOC_SINGLE("Video Switch", AC97_VIDEO, 15, 1, 1),
127
128 SOC_DOUBLE_TLV("DAC Volume", AC97_PCM, 8, 0, 31, 1, mix_tlv),
129 SOC_SINGLE("DAC Switch", AC97_PCM, 15, 1, 1),
130 SOC_SINGLE("Loopback Test Switch", AC97_GENERAL_PURPOSE, 7, 1, 0),
131 SOC_SINGLE("3D Volume", AC97_3D_CONTROL, 3, 2, 1),
132 SOC_SINGLE("3D Switch", AC97_GENERAL_PURPOSE, 13, 1, 0),
133
134 SOC_ENUM("SPDIF Mux", stac9766_SPDIF_enum),
135 SOC_ENUM("Mic1/2 Mux", stac9766_mic_enum),
136 SOC_ENUM("Record All Mux", stac9766_record_all_enum),
137 SOC_ENUM("Record Mux", stac9766_record_enum),
138 SOC_ENUM("Mono Mux", stac9766_mono_enum),
139 SOC_ENUM("Pop Bypass Mux", stac9766_popbypass_enum),
140};
141
05e1efa2
MB		 142static int stac9766_ac97_write(struct snd_soc_codec *codec, unsigned int reg,
143 unsigned int val)
3c166c7f
JS		 144{
145 u16 *cache = codec->reg_cache;
146
147 if (reg > AC97_STAC_PAGE0) {
148 stac9766_ac97_write(codec, AC97_INT_PAGING, 0);
149 soc_ac97_ops.write(codec->ac97, reg, val);
150 stac9766_ac97_write(codec, AC97_INT_PAGING, 1);
151 return 0;
152 }
33e319fb 153 if (reg / 2 >= ARRAY_SIZE(stac9766_reg))
3c166c7f
JS		 154 return -EIO;
155
156 soc_ac97_ops.write(codec->ac97, reg, val);
157 cache[reg / 2] = val;
158 return 0;
159}
160
05e1efa2
MB		 161static unsigned int stac9766_ac97_read(struct snd_soc_codec *codec,
162 unsigned int reg)
3c166c7f
JS		 163{
164 u16 val = 0, *cache = codec->reg_cache;
165
166 if (reg > AC97_STAC_PAGE0) {
167 stac9766_ac97_write(codec, AC97_INT_PAGING, 0);
168 val = soc_ac97_ops.read(codec->ac97, reg - AC97_STAC_PAGE0);
169 stac9766_ac97_write(codec, AC97_INT_PAGING, 1);
170 return val;
171 }
33e319fb 172 if (reg / 2 >= ARRAY_SIZE(stac9766_reg))
3c166c7f
JS		 173 return -EIO;
174
175 if (reg == AC97_RESET || reg == AC97_GPIO_STATUS ||
176 reg == AC97_INT_PAGING || reg == AC97_VENDOR_ID1 ||
177 reg == AC97_VENDOR_ID2) {
178
179 val = soc_ac97_ops.read(codec->ac97, reg);
180 return val;
181 }
182 return cache[reg / 2];
183}
184
185static int ac97_analog_prepare(struct snd_pcm_substream *substream,
05e1efa2 186 struct snd_soc_dai *dai)
3c166c7f
JS		 187{
188 struct snd_soc_codec *codec = dai->codec;
189 struct snd_pcm_runtime *runtime = substream->runtime;
190 unsigned short reg, vra;
191
192 vra = stac9766_ac97_read(codec, AC97_EXTENDED_STATUS);
193
194 vra |= 0x1; /* enable variable rate audio */
75b46c13 195 vra &= ~0x4; /* disable SPDIF output */
3c166c7f
JS		 196
197 stac9766_ac97_write(codec, AC97_EXTENDED_STATUS, vra);
198
199 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
200 reg = AC97_PCM_FRONT_DAC_RATE;
201 else
202 reg = AC97_PCM_LR_ADC_RATE;
203
204 return stac9766_ac97_write(codec, reg, runtime->rate);
205}
206
207static int ac97_digital_prepare(struct snd_pcm_substream *substream,
05e1efa2 208 struct snd_soc_dai *dai)
3c166c7f
JS		 209{
210 struct snd_soc_codec *codec = dai->codec;
211 struct snd_pcm_runtime *runtime = substream->runtime;
212 unsigned short reg, vra;
213
214 stac9766_ac97_write(codec, AC97_SPDIF, 0x2002);
215
216 vra = stac9766_ac97_read(codec, AC97_EXTENDED_STATUS);
217 vra |= 0x5; /* Enable VRA and SPDIF out */
218
219 stac9766_ac97_write(codec, AC97_EXTENDED_STATUS, vra);
220
221 reg = AC97_PCM_FRONT_DAC_RATE;
222
223 return stac9766_ac97_write(codec, reg, runtime->rate);
224}
225
3c166c7f 226static int stac9766_set_bias_level(struct snd_soc_codec *codec,
05e1efa2 227 enum snd_soc_bias_level level)
3c166c7f
JS		 228{
229 switch (level) {
230 case SND_SOC_BIAS_ON: /* full On */
231 case SND_SOC_BIAS_PREPARE: /* partial On */
232 case SND_SOC_BIAS_STANDBY: /* Off, with power */
233 stac9766_ac97_write(codec, AC97_POWERDOWN, 0x0000);
234 break;
235 case SND_SOC_BIAS_OFF: /* Off, without power */
236 /* disable everything including AC link */
237 stac9766_ac97_write(codec, AC97_POWERDOWN, 0xffff);
238 break;
239 }
240 codec->bias_level = level;
241 return 0;
242}
243
05e1efa2 244static int stac9766_reset(struct snd_soc_codec *codec, int try_warm)
3c166c7f
JS		 245{
246 if (try_warm && soc_ac97_ops.warm_reset) {
247 soc_ac97_ops.warm_reset(codec->ac97);
248 if (stac9766_ac97_read(codec, 0) == stac9766_reg[0])
249 return 1;
250 }
251
252 soc_ac97_ops.reset(codec->ac97);
253 if (soc_ac97_ops.warm_reset)
254 soc_ac97_ops.warm_reset(codec->ac97);
255 if (stac9766_ac97_read(codec, 0) != stac9766_reg[0])
256 return -EIO;
257 return 0;
258}
259
260static int stac9766_codec_suspend(struct platform_device *pdev,
05e1efa2 261 pm_message_t state)
3c166c7f
JS		 262{
263 struct snd_soc_device *socdev = platform_get_drvdata(pdev);
264 struct snd_soc_codec *codec = socdev->card->codec;
265
266 stac9766_set_bias_level(codec, SND_SOC_BIAS_OFF);
267 return 0;
268}
269
270static int stac9766_codec_resume(struct platform_device *pdev)
271{
272 struct snd_soc_device *socdev = platform_get_drvdata(pdev);
273 struct snd_soc_codec *codec = socdev->card->codec;
274 u16 id, reset;
275
276 reset = 0;
277 /* give the codec an AC97 warm reset to start the link */
278reset:
279 if (reset > 5) {
280 printk(KERN_ERR "stac9766 failed to resume");
281 return -EIO;
282 }
283 codec->ac97->bus->ops->warm_reset(codec->ac97);
284 id = soc_ac97_ops.read(codec->ac97, AC97_VENDOR_ID2);
285 if (id != 0x4c13) {
286 stac9766_reset(codec, 0);
287 reset++;
288 goto reset;
289 }
290 stac9766_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
291
292 if (codec->suspend_bias_level == SND_SOC_BIAS_ON)
293 stac9766_set_bias_level(codec, SND_SOC_BIAS_ON);
294
295 return 0;
296}
297
05e1efa2 298static struct snd_soc_dai_ops stac9766_dai_ops_analog = {
3c166c7f
JS		 299 .prepare = ac97_analog_prepare,
300};
301
05e1efa2 302static struct snd_soc_dai_ops stac9766_dai_ops_digital = {
3c166c7f 303 .prepare = ac97_digital_prepare,
3c166c7f
JS		 304};
305
306struct snd_soc_dai stac9766_dai[] = {
307{
308 .name = "stac9766 analog",
309 .id = 0,
310 .ac97_control = 1,
311
312 /* stream cababilities */
313 .playback = {
314 .stream_name = "stac9766 analog",
315 .channels_min = 1,
316 .channels_max = 2,
317 .rates = SNDRV_PCM_RATE_8000_48000,
318 .formats = SND_SOC_STD_AC97_FMTS,
319 },
320 .capture = {
321 .stream_name = "stac9766 analog",
322 .channels_min = 1,
323 .channels_max = 2,
324 .rates = SNDRV_PCM_RATE_8000_48000,
325 .formats = SND_SOC_STD_AC97_FMTS,
326 },
327 /* alsa ops */
328 .ops = &stac9766_dai_ops_analog,
329},
330{
331 .name = "stac9766 IEC958",
332 .id = 1,
333 .ac97_control = 1,
334
335 /* stream cababilities */
336 .playback = {
337 .stream_name = "stac9766 IEC958",
338 .channels_min = 1,
339 .channels_max = 2,
340 .rates = SNDRV_PCM_RATE_32000 | \
341 SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000,
342 .formats = SNDRV_PCM_FORMAT_IEC958_SUBFRAME_BE,
343 },
344 /* alsa ops */
345 .ops = &stac9766_dai_ops_digital,
05e1efa2
MB		 346}
347};
3c166c7f
JS		 348EXPORT_SYMBOL_GPL(stac9766_dai);
349
350static int stac9766_codec_probe(struct platform_device *pdev)
351{
352 struct snd_soc_device *socdev = platform_get_drvdata(pdev);
353 struct snd_soc_codec *codec;
354 int ret = 0;
355
356 printk(KERN_INFO "STAC9766 SoC Audio Codec %s\n", STAC9766_VERSION);
357
358 socdev->card->codec = kzalloc(sizeof(struct snd_soc_codec), GFP_KERNEL);
359 if (socdev->card->codec == NULL)
360 return -ENOMEM;
361 codec = socdev->card->codec;
362 mutex_init(&codec->mutex);
363
05e1efa2
MB		 364 codec->reg_cache = kmemdup(stac9766_reg, sizeof(stac9766_reg),
365 GFP_KERNEL);
3c166c7f
JS		 366 if (codec->reg_cache == NULL) {
367 ret = -ENOMEM;
368 goto cache_err;
369 }
370 codec->reg_cache_size = sizeof(stac9766_reg);
371 codec->reg_cache_step = 2;
372
373 codec->name = "STAC9766";
374 codec->owner = THIS_MODULE;
375 codec->dai = stac9766_dai;
376 codec->num_dai = ARRAY_SIZE(stac9766_dai);
377 codec->write = stac9766_ac97_write;
378 codec->read = stac9766_ac97_read;
379 codec->set_bias_level = stac9766_set_bias_level;
380 INIT_LIST_HEAD(&codec->dapm_widgets);
381 INIT_LIST_HEAD(&codec->dapm_paths);
382
383 ret = snd_soc_new_ac97_codec(codec, &soc_ac97_ops, 0);
384 if (ret < 0)
385 goto codec_err;
386
387 /* register pcms */
388 ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1);
389 if (ret < 0)
390 goto pcm_err;
391
392 /* do a cold reset for the controller and then try
393 * a warm reset followed by an optional cold reset for codec */
394 stac9766_reset(codec, 0);
395 ret = stac9766_reset(codec, 1);
396 if (ret < 0) {
397 printk(KERN_ERR "Failed to reset STAC9766: AC97 link error\n");
398 goto reset_err;
399 }
400
401 stac9766_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
402
05e1efa2
MB		 403 snd_soc_add_controls(codec, stac9766_snd_ac97_controls,
404 ARRAY_SIZE(stac9766_snd_ac97_controls));
3c166c7f 405
3c166c7f
JS		 406 return 0;
407
408reset_err:
409 snd_soc_free_pcms(socdev);
410pcm_err:
411 snd_soc_free_ac97_codec(codec);
412codec_err:
413 kfree(codec->private_data);
414cache_err:
415 kfree(socdev->card->codec);
416 socdev->card->codec = NULL;
417 return ret;
418}
419
420static int stac9766_codec_remove(struct platform_device *pdev)
421{
422 struct snd_soc_device *socdev = platform_get_drvdata(pdev);
423 struct snd_soc_codec *codec = socdev->card->codec;
424
425 if (codec == NULL)
426 return 0;
427
428 snd_soc_free_pcms(socdev);
429 snd_soc_free_ac97_codec(codec);
430 kfree(codec->reg_cache);
431 kfree(codec);
432 return 0;
433}
434
05e1efa2 435struct snd_soc_codec_device soc_codec_dev_stac9766 = {
3c166c7f
JS		 436 .probe = stac9766_codec_probe,
437 .remove = stac9766_codec_remove,
438 .suspend = stac9766_codec_suspend,
439 .resume = stac9766_codec_resume,
440};
441EXPORT_SYMBOL_GPL(soc_codec_dev_stac9766);
442
3c166c7f
JS		 443MODULE_DESCRIPTION("ASoC stac9766 driver");
444MODULE_AUTHOR("Jon Smirl <jonsmirl@gmail.com>");
445MODULE_LICENSE("GPL");
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