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Merge branch 'async-scsi-resume' of git://git.kernel.org/pub/scm/linux/kernel/git...
[deliverable/linux.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>
3c166c7f
JS		 28
29#include "stac9766.h"
30
3c166c7f
JS		 31/*
32 * STAC9766 register cache
33 */
34static const u16 stac9766_reg[] = {
35 0x6A90, 0x8000, 0x8000, 0x8000, /* 6 */
36 0x0000, 0x0000, 0x8008, 0x8008, /* e */
37 0x8808, 0x8808, 0x8808, 0x8808, /* 16 */
38 0x8808, 0x0000, 0x8000, 0x0000, /* 1e */
39 0x0000, 0x0000, 0x0000, 0x000f, /* 26 */
40 0x0a05, 0x0400, 0xbb80, 0x0000, /* 2e */
41 0x0000, 0xbb80, 0x0000, 0x0000, /* 36 */
42 0x0000, 0x2000, 0x0000, 0x0100, /* 3e */
43 0x0000, 0x0000, 0x0080, 0x0000, /* 46 */
44 0x0000, 0x0000, 0x0003, 0xffff, /* 4e */
45 0x0000, 0x0000, 0x0000, 0x0000, /* 56 */
46 0x4000, 0x0000, 0x0000, 0x0000, /* 5e */
47 0x1201, 0xFFFF, 0xFFFF, 0x0000, /* 66 */
48 0x0000, 0x0000, 0x0000, 0x0000, /* 6e */
49 0x0000, 0x0000, 0x0000, 0x0006, /* 76 */
50 0x0000, 0x0000, 0x0000, 0x0000, /* 7e */
51};
52
05e1efa2
MB		 53static const char *stac9766_record_mux[] = {"Mic", "CD", "Video", "AUX",
54 "Line", "Stereo Mix", "Mono Mix", "Phone"};
3c166c7f
JS		 55static const char *stac9766_mono_mux[] = {"Mix", "Mic"};
56static const char *stac9766_mic_mux[] = {"Mic1", "Mic2"};
57static const char *stac9766_SPDIF_mux[] = {"PCM", "ADC Record"};
58static const char *stac9766_popbypass_mux[] = {"Normal", "Bypass Mixer"};
05e1efa2
MB		 59static const char *stac9766_record_all_mux[] = {"All analog",
60 "Analog plus DAC"};
3c166c7f
JS		 61static const char *stac9766_boost1[] = {"0dB", "10dB"};
62static const char *stac9766_boost2[] = {"0dB", "20dB"};
63static const char *stac9766_stereo_mic[] = {"Off", "On"};
64
3cd7ca58
TI		 65static SOC_ENUM_DOUBLE_DECL(stac9766_record_enum,
66 AC97_REC_SEL, 8, 0, stac9766_record_mux);
67static SOC_ENUM_SINGLE_DECL(stac9766_mono_enum,
68 AC97_GENERAL_PURPOSE, 9, stac9766_mono_mux);
69static SOC_ENUM_SINGLE_DECL(stac9766_mic_enum,
70 AC97_GENERAL_PURPOSE, 8, stac9766_mic_mux);
71static SOC_ENUM_SINGLE_DECL(stac9766_SPDIF_enum,
72 AC97_STAC_DA_CONTROL, 1, stac9766_SPDIF_mux);
73static SOC_ENUM_SINGLE_DECL(stac9766_popbypass_enum,
74 AC97_GENERAL_PURPOSE, 15, stac9766_popbypass_mux);
75static SOC_ENUM_SINGLE_DECL(stac9766_record_all_enum,
76 AC97_STAC_ANALOG_SPECIAL, 12,
77 stac9766_record_all_mux);
78static SOC_ENUM_SINGLE_DECL(stac9766_boost1_enum,
79 AC97_MIC, 6, stac9766_boost1); /* 0/10dB */
80static SOC_ENUM_SINGLE_DECL(stac9766_boost2_enum,
81 AC97_STAC_ANALOG_SPECIAL, 2, stac9766_boost2); /* 0/20dB */
82static SOC_ENUM_SINGLE_DECL(stac9766_stereo_mic_enum,
83 AC97_STAC_STEREO_MIC, 2, stac9766_stereo_mic);
3c166c7f
JS		 84
85static const DECLARE_TLV_DB_LINEAR(master_tlv, -4600, 0);
86static const DECLARE_TLV_DB_LINEAR(record_tlv, 0, 2250);
87static const DECLARE_TLV_DB_LINEAR(beep_tlv, -4500, 0);
88static const DECLARE_TLV_DB_LINEAR(mix_tlv, -3450, 1200);
89
90static const struct snd_kcontrol_new stac9766_snd_ac97_controls[] = {
91 SOC_DOUBLE_TLV("Speaker Volume", AC97_MASTER, 8, 0, 31, 1, master_tlv),
92 SOC_SINGLE("Speaker Switch", AC97_MASTER, 15, 1, 1),
05e1efa2
MB		 93 SOC_DOUBLE_TLV("Headphone Volume", AC97_HEADPHONE, 8, 0, 31, 1,
94 master_tlv),
3c166c7f 95 SOC_SINGLE("Headphone Switch", AC97_HEADPHONE, 15, 1, 1),
05e1efa2
MB		 96 SOC_SINGLE_TLV("Mono Out Volume", AC97_MASTER_MONO, 0, 31, 1,
97 master_tlv),
3c166c7f
JS		 98 SOC_SINGLE("Mono Out Switch", AC97_MASTER_MONO, 15, 1, 1),
99
100 SOC_DOUBLE_TLV("Record Volume", AC97_REC_GAIN, 8, 0, 15, 0, record_tlv),
101 SOC_SINGLE("Record Switch", AC97_REC_GAIN, 15, 1, 1),
102
103
104 SOC_SINGLE_TLV("Beep Volume", AC97_PC_BEEP, 1, 15, 1, beep_tlv),
105 SOC_SINGLE("Beep Switch", AC97_PC_BEEP, 15, 1, 1),
106 SOC_SINGLE("Beep Frequency", AC97_PC_BEEP, 5, 127, 1),
107 SOC_SINGLE_TLV("Phone Volume", AC97_PHONE, 0, 31, 1, mix_tlv),
108 SOC_SINGLE("Phone Switch", AC97_PHONE, 15, 1, 1),
109
110 SOC_ENUM("Mic Boost1", stac9766_boost1_enum),
111 SOC_ENUM("Mic Boost2", stac9766_boost2_enum),
112 SOC_SINGLE_TLV("Mic Volume", AC97_MIC, 0, 31, 1, mix_tlv),
113 SOC_SINGLE("Mic Switch", AC97_MIC, 15, 1, 1),
114 SOC_ENUM("Stereo Mic", stac9766_stereo_mic_enum),
115
116 SOC_DOUBLE_TLV("Line Volume", AC97_LINE, 8, 0, 31, 1, mix_tlv),
117 SOC_SINGLE("Line Switch", AC97_LINE, 15, 1, 1),
118 SOC_DOUBLE_TLV("CD Volume", AC97_CD, 8, 0, 31, 1, mix_tlv),
119 SOC_SINGLE("CD Switch", AC97_CD, 15, 1, 1),
120 SOC_DOUBLE_TLV("AUX Volume", AC97_AUX, 8, 0, 31, 1, mix_tlv),
121 SOC_SINGLE("AUX Switch", AC97_AUX, 15, 1, 1),
122 SOC_DOUBLE_TLV("Video Volume", AC97_VIDEO, 8, 0, 31, 1, mix_tlv),
123 SOC_SINGLE("Video Switch", AC97_VIDEO, 15, 1, 1),
124
125 SOC_DOUBLE_TLV("DAC Volume", AC97_PCM, 8, 0, 31, 1, mix_tlv),
126 SOC_SINGLE("DAC Switch", AC97_PCM, 15, 1, 1),
127 SOC_SINGLE("Loopback Test Switch", AC97_GENERAL_PURPOSE, 7, 1, 0),
128 SOC_SINGLE("3D Volume", AC97_3D_CONTROL, 3, 2, 1),
129 SOC_SINGLE("3D Switch", AC97_GENERAL_PURPOSE, 13, 1, 0),
130
131 SOC_ENUM("SPDIF Mux", stac9766_SPDIF_enum),
132 SOC_ENUM("Mic1/2 Mux", stac9766_mic_enum),
133 SOC_ENUM("Record All Mux", stac9766_record_all_enum),
134 SOC_ENUM("Record Mux", stac9766_record_enum),
135 SOC_ENUM("Mono Mux", stac9766_mono_enum),
136 SOC_ENUM("Pop Bypass Mux", stac9766_popbypass_enum),
137};
138
05e1efa2
MB		 139static int stac9766_ac97_write(struct snd_soc_codec *codec, unsigned int reg,
140 unsigned int val)
3c166c7f
JS		 141{
142 u16 *cache = codec->reg_cache;
143
144 if (reg > AC97_STAC_PAGE0) {
145 stac9766_ac97_write(codec, AC97_INT_PAGING, 0);
b047e1cc 146 soc_ac97_ops->write(codec->ac97, reg, val);
3c166c7f
JS		 147 stac9766_ac97_write(codec, AC97_INT_PAGING, 1);
148 return 0;
149 }
33e319fb 150 if (reg / 2 >= ARRAY_SIZE(stac9766_reg))
3c166c7f
JS		 151 return -EIO;
152
b047e1cc 153 soc_ac97_ops->write(codec->ac97, reg, val);
3c166c7f
JS		 154 cache[reg / 2] = val;
155 return 0;
156}
157
05e1efa2
MB		 158static unsigned int stac9766_ac97_read(struct snd_soc_codec *codec,
159 unsigned int reg)
3c166c7f
JS		 160{
161 u16 val = 0, *cache = codec->reg_cache;
162
163 if (reg > AC97_STAC_PAGE0) {
164 stac9766_ac97_write(codec, AC97_INT_PAGING, 0);
b047e1cc 165 val = soc_ac97_ops->read(codec->ac97, reg - AC97_STAC_PAGE0);
3c166c7f
JS		 166 stac9766_ac97_write(codec, AC97_INT_PAGING, 1);
167 return val;
168 }
33e319fb 169 if (reg / 2 >= ARRAY_SIZE(stac9766_reg))
3c166c7f
JS		 170 return -EIO;
171
172 if (reg == AC97_RESET || reg == AC97_GPIO_STATUS ||
173 reg == AC97_INT_PAGING || reg == AC97_VENDOR_ID1 ||
174 reg == AC97_VENDOR_ID2) {
175
b047e1cc 176 val = soc_ac97_ops->read(codec->ac97, reg);
3c166c7f
JS		 177 return val;
178 }
179 return cache[reg / 2];
180}
181
182static int ac97_analog_prepare(struct snd_pcm_substream *substream,
05e1efa2 183 struct snd_soc_dai *dai)
3c166c7f
JS		 184{
185 struct snd_soc_codec *codec = dai->codec;
186 struct snd_pcm_runtime *runtime = substream->runtime;
187 unsigned short reg, vra;
188
189 vra = stac9766_ac97_read(codec, AC97_EXTENDED_STATUS);
190
191 vra |= 0x1; /* enable variable rate audio */
75b46c13 192 vra &= ~0x4; /* disable SPDIF output */
3c166c7f
JS		 193
194 stac9766_ac97_write(codec, AC97_EXTENDED_STATUS, vra);
195
196 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
197 reg = AC97_PCM_FRONT_DAC_RATE;
198 else
199 reg = AC97_PCM_LR_ADC_RATE;
200
201 return stac9766_ac97_write(codec, reg, runtime->rate);
202}
203
204static int ac97_digital_prepare(struct snd_pcm_substream *substream,
05e1efa2 205 struct snd_soc_dai *dai)
3c166c7f
JS		 206{
207 struct snd_soc_codec *codec = dai->codec;
208 struct snd_pcm_runtime *runtime = substream->runtime;
209 unsigned short reg, vra;
210
211 stac9766_ac97_write(codec, AC97_SPDIF, 0x2002);
212
213 vra = stac9766_ac97_read(codec, AC97_EXTENDED_STATUS);
214 vra |= 0x5; /* Enable VRA and SPDIF out */
215
216 stac9766_ac97_write(codec, AC97_EXTENDED_STATUS, vra);
217
218 reg = AC97_PCM_FRONT_DAC_RATE;
219
220 return stac9766_ac97_write(codec, reg, runtime->rate);
221}
222
3c166c7f 223static int stac9766_set_bias_level(struct snd_soc_codec *codec,
05e1efa2 224 enum snd_soc_bias_level level)
3c166c7f
JS		 225{
226 switch (level) {
227 case SND_SOC_BIAS_ON: /* full On */
228 case SND_SOC_BIAS_PREPARE: /* partial On */
229 case SND_SOC_BIAS_STANDBY: /* Off, with power */
230 stac9766_ac97_write(codec, AC97_POWERDOWN, 0x0000);
231 break;
232 case SND_SOC_BIAS_OFF: /* Off, without power */
233 /* disable everything including AC link */
234 stac9766_ac97_write(codec, AC97_POWERDOWN, 0xffff);
235 break;
236 }
ce6120cc 237 codec->dapm.bias_level = level;
3c166c7f
JS		 238 return 0;
239}
240
05e1efa2 241static int stac9766_reset(struct snd_soc_codec *codec, int try_warm)
3c166c7f 242{
b047e1cc
MB		 243 if (try_warm && soc_ac97_ops->warm_reset) {
244 soc_ac97_ops->warm_reset(codec->ac97);
3c166c7f
JS		 245 if (stac9766_ac97_read(codec, 0) == stac9766_reg[0])
246 return 1;
247 }
248
b047e1cc
MB		 249 soc_ac97_ops->reset(codec->ac97);
250 if (soc_ac97_ops->warm_reset)
251 soc_ac97_ops->warm_reset(codec->ac97);
3c166c7f
JS		 252 if (stac9766_ac97_read(codec, 0) != stac9766_reg[0])
253 return -EIO;
254 return 0;
255}
256
84b315ee 257static int stac9766_codec_suspend(struct snd_soc_codec *codec)
3c166c7f 258{
3c166c7f
JS		 259 stac9766_set_bias_level(codec, SND_SOC_BIAS_OFF);
260 return 0;
261}
262
f0fba2ad 263static int stac9766_codec_resume(struct snd_soc_codec *codec)
3c166c7f 264{
3c166c7f
JS		 265 u16 id, reset;
266
267 reset = 0;
268 /* give the codec an AC97 warm reset to start the link */
269reset:
270 if (reset > 5) {
271 printk(KERN_ERR "stac9766 failed to resume");
272 return -EIO;
273 }
274 codec->ac97->bus->ops->warm_reset(codec->ac97);
b047e1cc 275 id = soc_ac97_ops->read(codec->ac97, AC97_VENDOR_ID2);
3c166c7f
JS		 276 if (id != 0x4c13) {
277 stac9766_reset(codec, 0);
278 reset++;
279 goto reset;
280 }
281 stac9766_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
282
3c166c7f
JS		 283 return 0;
284}
285
85e7652d 286static const struct snd_soc_dai_ops stac9766_dai_ops_analog = {
3c166c7f
JS		 287 .prepare = ac97_analog_prepare,
288};
289
85e7652d 290static const struct snd_soc_dai_ops stac9766_dai_ops_digital = {
3c166c7f 291 .prepare = ac97_digital_prepare,
3c166c7f
JS		 292};
293
f0fba2ad 294static struct snd_soc_dai_driver stac9766_dai[] = {
3c166c7f 295{
f0fba2ad 296 .name = "stac9766-hifi-analog",
3c166c7f
JS		 297 .ac97_control = 1,
298
299 /* stream cababilities */
300 .playback = {
301 .stream_name = "stac9766 analog",
302 .channels_min = 1,
303 .channels_max = 2,
304 .rates = SNDRV_PCM_RATE_8000_48000,
305 .formats = SND_SOC_STD_AC97_FMTS,
306 },
307 .capture = {
308 .stream_name = "stac9766 analog",
309 .channels_min = 1,
310 .channels_max = 2,
311 .rates = SNDRV_PCM_RATE_8000_48000,
312 .formats = SND_SOC_STD_AC97_FMTS,
313 },
314 /* alsa ops */
315 .ops = &stac9766_dai_ops_analog,
316},
317{
f0fba2ad 318 .name = "stac9766-hifi-IEC958",
3c166c7f
JS		 319 .ac97_control = 1,
320
321 /* stream cababilities */
322 .playback = {
323 .stream_name = "stac9766 IEC958",
324 .channels_min = 1,
325 .channels_max = 2,
326 .rates = SNDRV_PCM_RATE_32000 | \
327 SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000,
328 .formats = SNDRV_PCM_FORMAT_IEC958_SUBFRAME_BE,
329 },
330 /* alsa ops */
331 .ops = &stac9766_dai_ops_digital,
05e1efa2
MB		 332}
333};
3c166c7f 334
f0fba2ad 335static int stac9766_codec_probe(struct snd_soc_codec *codec)
3c166c7f 336{
3c166c7f
JS		 337 int ret = 0;
338
b047e1cc 339 ret = snd_soc_new_ac97_codec(codec, soc_ac97_ops, 0);
3c166c7f
JS		 340 if (ret < 0)
341 goto codec_err;
342
3c166c7f
JS		 343 /* do a cold reset for the controller and then try
344 * a warm reset followed by an optional cold reset for codec */
345 stac9766_reset(codec, 0);
346 ret = stac9766_reset(codec, 1);
347 if (ret < 0) {
348 printk(KERN_ERR "Failed to reset STAC9766: AC97 link error\n");
f0fba2ad 349 goto codec_err;
3c166c7f
JS		 350 }
351
352 stac9766_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
353
022658be 354 snd_soc_add_codec_controls(codec, stac9766_snd_ac97_controls,
05e1efa2 355 ARRAY_SIZE(stac9766_snd_ac97_controls));
3c166c7f 356
3c166c7f
JS		 357 return 0;
358
3c166c7f 359codec_err:
f0fba2ad 360 snd_soc_free_ac97_codec(codec);
3c166c7f
JS		 361 return ret;
362}
363
f0fba2ad 364static int stac9766_codec_remove(struct snd_soc_codec *codec)
3c166c7f 365{
3c166c7f 366 snd_soc_free_ac97_codec(codec);
3c166c7f
JS		 367 return 0;
368}
369
f0fba2ad
LG		 370static struct snd_soc_codec_driver soc_codec_dev_stac9766 = {
371 .write = stac9766_ac97_write,
372 .read = stac9766_ac97_read,
373 .set_bias_level = stac9766_set_bias_level,
3c166c7f
JS		 374 .probe = stac9766_codec_probe,
375 .remove = stac9766_codec_remove,
376 .suspend = stac9766_codec_suspend,
377 .resume = stac9766_codec_resume,
f031efe9 378 .reg_cache_size = ARRAY_SIZE(stac9766_reg),
f0fba2ad
LG		 379 .reg_word_size = sizeof(u16),
380 .reg_cache_step = 2,
13a2e06c 381 .reg_cache_default = stac9766_reg,
f0fba2ad
LG		 382};
383
7a79e94e 384static int stac9766_probe(struct platform_device *pdev)
f0fba2ad
LG		 385{
386 return snd_soc_register_codec(&pdev->dev,
387 &soc_codec_dev_stac9766, stac9766_dai, ARRAY_SIZE(stac9766_dai));
388}
389
7a79e94e 390static int stac9766_remove(struct platform_device *pdev)
f0fba2ad
LG		 391{
392 snd_soc_unregister_codec(&pdev->dev);
393 return 0;
394}
395
396static struct platform_driver stac9766_codec_driver = {
397 .driver = {
398 .name = "stac9766-codec",
399 .owner = THIS_MODULE,
400 },
401
402 .probe = stac9766_probe,
7a79e94e 403 .remove = stac9766_remove,
3c166c7f 404};
f0fba2ad 405
5bbcc3c0 406module_platform_driver(stac9766_codec_driver);
3c166c7f 407
3c166c7f
JS		 408MODULE_DESCRIPTION("ASoC stac9766 driver");
409MODULE_AUTHOR("Jon Smirl <jonsmirl@gmail.com>");
410MODULE_LICENSE("GPL");
Linux kernel - Deliverables
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