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v6.13.7
  1// SPDX-License-Identifier: GPL-2.0-or-later
  2/*
  3 * stac9766.c  --  ALSA SoC STAC9766 codec support
  4 *
  5 * Copyright 2009 Jon Smirl, Digispeaker
  6 * Author: Jon Smirl <jonsmirl@gmail.com>
  7 *
 
 
 
 
 
  8 *  Features:-
  9 *
 10 *   o Support for AC97 Codec, S/PDIF
 11 */
 12
 13#include <linux/init.h>
 14#include <linux/slab.h>
 15#include <linux/module.h>
 16#include <linux/device.h>
 17#include <linux/regmap.h>
 18#include <sound/core.h>
 19#include <sound/pcm.h>
 20#include <sound/ac97_codec.h>
 21#include <sound/initval.h>
 22#include <sound/pcm_params.h>
 23#include <sound/soc.h>
 24#include <sound/tlv.h>
 25
 26#define STAC9766_VENDOR_ID 0x83847666
 27#define STAC9766_VENDOR_ID_MASK 0xffffffff
 28
 29#define AC97_STAC_DA_CONTROL 0x6A
 30#define AC97_STAC_ANALOG_SPECIAL 0x6E
 31#define AC97_STAC_STEREO_MIC 0x78
 32
 33static const struct reg_default stac9766_reg_defaults[] = {
 34	{ 0x02, 0x8000 },
 35	{ 0x04, 0x8000 },
 36	{ 0x06, 0x8000 },
 37	{ 0x0a, 0x0000 },
 38	{ 0x0c, 0x8008 },
 39	{ 0x0e, 0x8008 },
 40	{ 0x10, 0x8808 },
 41	{ 0x12, 0x8808 },
 42	{ 0x14, 0x8808 },
 43	{ 0x16, 0x8808 },
 44	{ 0x18, 0x8808 },
 45	{ 0x1a, 0x0000 },
 46	{ 0x1c, 0x8000 },
 47	{ 0x20, 0x0000 },
 48	{ 0x22, 0x0000 },
 49	{ 0x28, 0x0a05 },
 50	{ 0x2c, 0xbb80 },
 51	{ 0x32, 0xbb80 },
 52	{ 0x3a, 0x2000 },
 53	{ 0x3e, 0x0100 },
 54	{ 0x4c, 0x0300 },
 55	{ 0x4e, 0xffff },
 56	{ 0x50, 0x0000 },
 57	{ 0x52, 0x0000 },
 58	{ 0x54, 0x0000 },
 59	{ 0x6a, 0x0000 },
 60	{ 0x6e, 0x1000 },
 61	{ 0x72, 0x0000 },
 62	{ 0x78, 0x0000 },
 63};
 64
 65static const struct regmap_config stac9766_regmap_config = {
 66	.reg_bits = 16,
 67	.reg_stride = 2,
 68	.val_bits = 16,
 69	.max_register = 0x78,
 70	.cache_type = REGCACHE_MAPLE,
 71
 72	.volatile_reg = regmap_ac97_default_volatile,
 73
 74	.reg_defaults = stac9766_reg_defaults,
 75	.num_reg_defaults = ARRAY_SIZE(stac9766_reg_defaults),
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 76};
 77
 78static const char *stac9766_record_mux[] = {"Mic", "CD", "Video", "AUX",
 79			"Line", "Stereo Mix", "Mono Mix", "Phone"};
 80static const char *stac9766_mono_mux[] = {"Mix", "Mic"};
 81static const char *stac9766_mic_mux[] = {"Mic1", "Mic2"};
 82static const char *stac9766_SPDIF_mux[] = {"PCM", "ADC Record"};
 83static const char *stac9766_popbypass_mux[] = {"Normal", "Bypass Mixer"};
 84static const char *stac9766_record_all_mux[] = {"All analog",
 85	"Analog plus DAC"};
 86static const char *stac9766_boost1[] = {"0dB", "10dB"};
 87static const char *stac9766_boost2[] = {"0dB", "20dB"};
 88static const char *stac9766_stereo_mic[] = {"Off", "On"};
 89
 90static SOC_ENUM_DOUBLE_DECL(stac9766_record_enum,
 91			    AC97_REC_SEL, 8, 0, stac9766_record_mux);
 92static SOC_ENUM_SINGLE_DECL(stac9766_mono_enum,
 93			    AC97_GENERAL_PURPOSE, 9, stac9766_mono_mux);
 94static SOC_ENUM_SINGLE_DECL(stac9766_mic_enum,
 95			    AC97_GENERAL_PURPOSE, 8, stac9766_mic_mux);
 96static SOC_ENUM_SINGLE_DECL(stac9766_SPDIF_enum,
 97			    AC97_STAC_DA_CONTROL, 1, stac9766_SPDIF_mux);
 98static SOC_ENUM_SINGLE_DECL(stac9766_popbypass_enum,
 99			    AC97_GENERAL_PURPOSE, 15, stac9766_popbypass_mux);
100static SOC_ENUM_SINGLE_DECL(stac9766_record_all_enum,
101			    AC97_STAC_ANALOG_SPECIAL, 12,
102			    stac9766_record_all_mux);
103static SOC_ENUM_SINGLE_DECL(stac9766_boost1_enum,
104			    AC97_MIC, 6, stac9766_boost1); /* 0/10dB */
105static SOC_ENUM_SINGLE_DECL(stac9766_boost2_enum,
106			    AC97_STAC_ANALOG_SPECIAL, 2, stac9766_boost2); /* 0/20dB */
107static SOC_ENUM_SINGLE_DECL(stac9766_stereo_mic_enum,
108			    AC97_STAC_STEREO_MIC, 2, stac9766_stereo_mic);
109
110static const SNDRV_CTL_TLVD_DECLARE_DB_SCALE(master_tlv, -4650, 150, 0);
111static const SNDRV_CTL_TLVD_DECLARE_DB_SCALE(record_tlv,     0, 150, 0);
112static const SNDRV_CTL_TLVD_DECLARE_DB_SCALE(beep_tlv,   -4500, 300, 0);
113static const SNDRV_CTL_TLVD_DECLARE_DB_SCALE(mix_tlv,    -3450, 150, 0);
114
115static const struct snd_kcontrol_new stac9766_snd_ac97_controls[] = {
116	SOC_DOUBLE_TLV("Speaker Volume", AC97_MASTER, 8, 0, 31, 1, master_tlv),
117	SOC_SINGLE("Speaker Switch", AC97_MASTER, 15, 1, 1),
118	SOC_DOUBLE_TLV("Headphone Volume", AC97_HEADPHONE, 8, 0, 31, 1,
119		       master_tlv),
120	SOC_SINGLE("Headphone Switch", AC97_HEADPHONE, 15, 1, 1),
121	SOC_SINGLE_TLV("Mono Out Volume", AC97_MASTER_MONO, 0, 31, 1,
122		       master_tlv),
123	SOC_SINGLE("Mono Out Switch", AC97_MASTER_MONO, 15, 1, 1),
124
125	SOC_DOUBLE_TLV("Record Volume", AC97_REC_GAIN, 8, 0, 15, 0, record_tlv),
126	SOC_SINGLE("Record Switch", AC97_REC_GAIN, 15, 1, 1),
127
128
129	SOC_SINGLE_TLV("Beep Volume", AC97_PC_BEEP, 1, 15, 1, beep_tlv),
130	SOC_SINGLE("Beep Switch", AC97_PC_BEEP, 15, 1, 1),
131	SOC_SINGLE("Beep Frequency", AC97_PC_BEEP, 5, 127, 1),
132	SOC_SINGLE_TLV("Phone Volume", AC97_PHONE, 0, 31, 1, mix_tlv),
133	SOC_SINGLE("Phone Switch", AC97_PHONE, 15, 1, 1),
134
135	SOC_ENUM("Mic Boost1", stac9766_boost1_enum),
136	SOC_ENUM("Mic Boost2", stac9766_boost2_enum),
137	SOC_SINGLE_TLV("Mic Volume", AC97_MIC, 0, 31, 1, mix_tlv),
138	SOC_SINGLE("Mic Switch", AC97_MIC, 15, 1, 1),
139	SOC_ENUM("Stereo Mic", stac9766_stereo_mic_enum),
140
141	SOC_DOUBLE_TLV("Line Volume", AC97_LINE, 8, 0, 31, 1, mix_tlv),
142	SOC_SINGLE("Line Switch", AC97_LINE, 15, 1, 1),
143	SOC_DOUBLE_TLV("CD Volume", AC97_CD, 8, 0, 31, 1, mix_tlv),
144	SOC_SINGLE("CD Switch", AC97_CD, 15, 1, 1),
145	SOC_DOUBLE_TLV("AUX Volume", AC97_AUX, 8, 0, 31, 1, mix_tlv),
146	SOC_SINGLE("AUX Switch", AC97_AUX, 15, 1, 1),
147	SOC_DOUBLE_TLV("Video Volume", AC97_VIDEO, 8, 0, 31, 1, mix_tlv),
148	SOC_SINGLE("Video Switch", AC97_VIDEO, 15, 1, 1),
149
150	SOC_DOUBLE_TLV("DAC Volume", AC97_PCM, 8, 0, 31, 1, mix_tlv),
151	SOC_SINGLE("DAC Switch", AC97_PCM, 15, 1, 1),
152	SOC_SINGLE("Loopback Test Switch", AC97_GENERAL_PURPOSE, 7, 1, 0),
153	SOC_SINGLE("3D Volume", AC97_3D_CONTROL, 3, 2, 1),
154	SOC_SINGLE("3D Switch", AC97_GENERAL_PURPOSE, 13, 1, 0),
155
156	SOC_ENUM("SPDIF Mux", stac9766_SPDIF_enum),
157	SOC_ENUM("Mic1/2 Mux", stac9766_mic_enum),
158	SOC_ENUM("Record All Mux", stac9766_record_all_enum),
159	SOC_ENUM("Record Mux", stac9766_record_enum),
160	SOC_ENUM("Mono Mux", stac9766_mono_enum),
161	SOC_ENUM("Pop Bypass Mux", stac9766_popbypass_enum),
162};
163
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
164static int ac97_analog_prepare(struct snd_pcm_substream *substream,
165			       struct snd_soc_dai *dai)
166{
167	struct snd_soc_component *component = dai->component;
168	struct snd_pcm_runtime *runtime = substream->runtime;
169	unsigned short reg;
170
171	/* enable variable rate audio, disable SPDIF output */
172	snd_soc_component_update_bits(component, AC97_EXTENDED_STATUS, 0x5, 0x1);
 
 
 
 
173
174	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
175		reg = AC97_PCM_FRONT_DAC_RATE;
176	else
177		reg = AC97_PCM_LR_ADC_RATE;
178
179	return snd_soc_component_write(component, reg, runtime->rate);
180}
181
182static int ac97_digital_prepare(struct snd_pcm_substream *substream,
183				struct snd_soc_dai *dai)
184{
185	struct snd_soc_component *component = dai->component;
186	struct snd_pcm_runtime *runtime = substream->runtime;
187	unsigned short reg;
 
 
188
189	snd_soc_component_write(component, AC97_SPDIF, 0x2002);
 
190
191	/* Enable VRA and SPDIF out */
192	snd_soc_component_update_bits(component, AC97_EXTENDED_STATUS, 0x5, 0x5);
193
194	reg = AC97_PCM_FRONT_DAC_RATE;
195
196	return snd_soc_component_write(component, reg, runtime->rate);
197}
198
199static int stac9766_set_bias_level(struct snd_soc_component *component,
200				   enum snd_soc_bias_level level)
201{
202	switch (level) {
203	case SND_SOC_BIAS_ON: /* full On */
204	case SND_SOC_BIAS_PREPARE: /* partial On */
205	case SND_SOC_BIAS_STANDBY: /* Off, with power */
206		snd_soc_component_write(component, AC97_POWERDOWN, 0x0000);
207		break;
208	case SND_SOC_BIAS_OFF: /* Off, without power */
209		/* disable everything including AC link */
210		snd_soc_component_write(component, AC97_POWERDOWN, 0xffff);
211		break;
212	}
 
213	return 0;
214}
215
216static int stac9766_component_resume(struct snd_soc_component *component)
217{
218	struct snd_ac97 *ac97 = snd_soc_component_get_drvdata(component);
 
 
 
 
219
220	return snd_ac97_reset(ac97, true, STAC9766_VENDOR_ID,
221		STAC9766_VENDOR_ID_MASK);
 
 
 
 
222}
223
224static const struct snd_soc_dai_ops stac9766_dai_ops_analog = {
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
225	.prepare = ac97_analog_prepare,
226};
227
228static const struct snd_soc_dai_ops stac9766_dai_ops_digital = {
229	.prepare = ac97_digital_prepare,
230};
231
232static struct snd_soc_dai_driver stac9766_dai[] = {
233{
234	.name = "stac9766-hifi-analog",
 
235
236	/* stream cababilities */
237	.playback = {
238		.stream_name = "stac9766 analog",
239		.channels_min = 1,
240		.channels_max = 2,
241		.rates = SNDRV_PCM_RATE_8000_48000,
242		.formats = SND_SOC_STD_AC97_FMTS,
243	},
244	.capture = {
245		.stream_name = "stac9766 analog",
246		.channels_min = 1,
247		.channels_max = 2,
248		.rates = SNDRV_PCM_RATE_8000_48000,
249		.formats = SND_SOC_STD_AC97_FMTS,
250	},
251	/* alsa ops */
252	.ops = &stac9766_dai_ops_analog,
253},
254{
255	.name = "stac9766-hifi-IEC958",
 
256
257	/* stream cababilities */
258	.playback = {
259		.stream_name = "stac9766 IEC958",
260		.channels_min = 1,
261		.channels_max = 2,
262		.rates = SNDRV_PCM_RATE_32000 | \
263			SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000,
264		.formats = SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_BE,
265	},
266	/* alsa ops */
267	.ops = &stac9766_dai_ops_digital,
268}
269};
270
271static int stac9766_component_probe(struct snd_soc_component *component)
272{
273	struct snd_ac97 *ac97;
274	struct regmap *regmap;
275	int ret;
276
277	ac97 = snd_soc_new_ac97_component(component, STAC9766_VENDOR_ID,
278			STAC9766_VENDOR_ID_MASK);
279	if (IS_ERR(ac97))
280		return PTR_ERR(ac97);
281
282	regmap = regmap_init_ac97(ac97, &stac9766_regmap_config);
283	if (IS_ERR(regmap)) {
284		ret = PTR_ERR(regmap);
285		goto err_free_ac97;
 
 
286	}
287
288	snd_soc_component_init_regmap(component, regmap);
289	snd_soc_component_set_drvdata(component, ac97);
 
 
290
291	return 0;
292err_free_ac97:
293	snd_soc_free_ac97_component(ac97);
 
294	return ret;
295}
296
297static void stac9766_component_remove(struct snd_soc_component *component)
298{
299	struct snd_ac97 *ac97 = snd_soc_component_get_drvdata(component);
300
301	snd_soc_component_exit_regmap(component);
302	snd_soc_free_ac97_component(ac97);
303}
304
305static const struct snd_soc_component_driver soc_component_dev_stac9766 = {
306	.controls		= stac9766_snd_ac97_controls,
307	.num_controls		= ARRAY_SIZE(stac9766_snd_ac97_controls),
308	.set_bias_level		= stac9766_set_bias_level,
309	.probe			= stac9766_component_probe,
310	.remove			= stac9766_component_remove,
311	.resume			= stac9766_component_resume,
312	.suspend_bias_off	= 1,
313	.idle_bias_on		= 1,
314	.use_pmdown_time	= 1,
315	.endianness		= 1,
 
316};
317
318static int stac9766_probe(struct platform_device *pdev)
319{
320	return devm_snd_soc_register_component(&pdev->dev,
321			&soc_component_dev_stac9766, stac9766_dai, ARRAY_SIZE(stac9766_dai));
 
 
 
 
 
 
322}
323
324static struct platform_driver stac9766_codec_driver = {
325	.driver = {
326			.name = "stac9766-codec",
 
327	},
328
329	.probe = stac9766_probe,
 
330};
331
332module_platform_driver(stac9766_codec_driver);
 
 
 
 
 
 
 
 
 
 
333
334MODULE_DESCRIPTION("ASoC stac9766 driver");
335MODULE_AUTHOR("Jon Smirl <jonsmirl@gmail.com>");
336MODULE_LICENSE("GPL");
v3.1
 
  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/slab.h>
 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
 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
 55static const char *stac9766_record_mux[] = {"Mic", "CD", "Video", "AUX",
 56			"Line", "Stereo Mix", "Mono Mix", "Phone"};
 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"};
 61static const char *stac9766_record_all_mux[] = {"All analog",
 62	"Analog plus DAC"};
 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 =
 78	SOC_ENUM_SINGLE(AC97_STAC_ANALOG_SPECIAL, 12, 2,
 79			stac9766_record_all_mux);
 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),
 95	SOC_DOUBLE_TLV("Headphone Volume", AC97_HEADPHONE, 8, 0, 31, 1,
 96		       master_tlv),
 97	SOC_SINGLE("Headphone Switch", AC97_HEADPHONE, 15, 1, 1),
 98	SOC_SINGLE_TLV("Mono Out Volume", AC97_MASTER_MONO, 0, 31, 1,
 99		       master_tlv),
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
141static int stac9766_ac97_write(struct snd_soc_codec *codec, unsigned int reg,
142			       unsigned int val)
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	}
152	if (reg / 2 >= ARRAY_SIZE(stac9766_reg))
153		return -EIO;
154
155	soc_ac97_ops.write(codec->ac97, reg, val);
156	cache[reg / 2] = val;
157	return 0;
158}
159
160static unsigned int stac9766_ac97_read(struct snd_soc_codec *codec,
161				       unsigned int reg)
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	}
171	if (reg / 2 >= ARRAY_SIZE(stac9766_reg))
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,
185			       struct snd_soc_dai *dai)
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 */
194	vra &= ~0x4; /* disable SPDIF output */
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,
207				struct snd_soc_dai *dai)
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
225static int stac9766_set_bias_level(struct snd_soc_codec *codec,
226				   enum snd_soc_bias_level level)
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->dapm.bias_level = level;
240	return 0;
241}
242
243static int stac9766_reset(struct snd_soc_codec *codec, int try_warm)
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 snd_soc_codec *codec,
260				  pm_message_t state)
261{
262	stac9766_set_bias_level(codec, SND_SOC_BIAS_OFF);
263	return 0;
264}
265
266static int stac9766_codec_resume(struct snd_soc_codec *codec)
267{
268	u16 id, reset;
269
270	reset = 0;
271	/* give the codec an AC97 warm reset to start the link */
272reset:
273	if (reset > 5) {
274		printk(KERN_ERR "stac9766 failed to resume");
275		return -EIO;
276	}
277	codec->ac97->bus->ops->warm_reset(codec->ac97);
278	id = soc_ac97_ops.read(codec->ac97, AC97_VENDOR_ID2);
279	if (id != 0x4c13) {
280		stac9766_reset(codec, 0);
281		reset++;
282		goto reset;
283	}
284	stac9766_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
285
286	return 0;
287}
288
289static struct snd_soc_dai_ops stac9766_dai_ops_analog = {
290	.prepare = ac97_analog_prepare,
291};
292
293static struct snd_soc_dai_ops stac9766_dai_ops_digital = {
294	.prepare = ac97_digital_prepare,
295};
296
297static struct snd_soc_dai_driver stac9766_dai[] = {
298{
299	.name = "stac9766-hifi-analog",
300	.ac97_control = 1,
301
302	/* stream cababilities */
303	.playback = {
304		.stream_name = "stac9766 analog",
305		.channels_min = 1,
306		.channels_max = 2,
307		.rates = SNDRV_PCM_RATE_8000_48000,
308		.formats = SND_SOC_STD_AC97_FMTS,
309	},
310	.capture = {
311		.stream_name = "stac9766 analog",
312		.channels_min = 1,
313		.channels_max = 2,
314		.rates = SNDRV_PCM_RATE_8000_48000,
315		.formats = SND_SOC_STD_AC97_FMTS,
316	},
317	/* alsa ops */
318	.ops = &stac9766_dai_ops_analog,
319},
320{
321	.name = "stac9766-hifi-IEC958",
322	.ac97_control = 1,
323
324	/* stream cababilities */
325	.playback = {
326		.stream_name = "stac9766 IEC958",
327		.channels_min = 1,
328		.channels_max = 2,
329		.rates = SNDRV_PCM_RATE_32000 | \
330			SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000,
331		.formats = SNDRV_PCM_FORMAT_IEC958_SUBFRAME_BE,
332	},
333	/* alsa ops */
334	.ops = &stac9766_dai_ops_digital,
335}
336};
337
338static int stac9766_codec_probe(struct snd_soc_codec *codec)
339{
340	int ret = 0;
341
342	printk(KERN_INFO "STAC9766 SoC Audio Codec %s\n", STAC9766_VERSION);
343
344	ret = snd_soc_new_ac97_codec(codec, &soc_ac97_ops, 0);
345	if (ret < 0)
346		goto codec_err;
347
348	/* do a cold reset for the controller and then try
349	 * a warm reset followed by an optional cold reset for codec */
350	stac9766_reset(codec, 0);
351	ret = stac9766_reset(codec, 1);
352	if (ret < 0) {
353		printk(KERN_ERR "Failed to reset STAC9766: AC97 link error\n");
354		goto codec_err;
355	}
356
357	stac9766_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
358
359	snd_soc_add_controls(codec, stac9766_snd_ac97_controls,
360			     ARRAY_SIZE(stac9766_snd_ac97_controls));
361
362	return 0;
363
364codec_err:
365	snd_soc_free_ac97_codec(codec);
366	return ret;
367}
368
369static int stac9766_codec_remove(struct snd_soc_codec *codec)
370{
371	snd_soc_free_ac97_codec(codec);
372	return 0;
 
 
373}
374
375static struct snd_soc_codec_driver soc_codec_dev_stac9766 = {
376	.write = stac9766_ac97_write,
377	.read = stac9766_ac97_read,
378	.set_bias_level = stac9766_set_bias_level,
379	.probe = stac9766_codec_probe,
380	.remove = stac9766_codec_remove,
381	.suspend = stac9766_codec_suspend,
382	.resume = stac9766_codec_resume,
383	.reg_cache_size = sizeof(stac9766_reg),
384	.reg_word_size = sizeof(u16),
385	.reg_cache_step = 2,
386	.reg_cache_default = stac9766_reg,
387};
388
389static __devinit int stac9766_probe(struct platform_device *pdev)
390{
391	return snd_soc_register_codec(&pdev->dev,
392			&soc_codec_dev_stac9766, stac9766_dai, ARRAY_SIZE(stac9766_dai));
393}
394
395static int __devexit stac9766_remove(struct platform_device *pdev)
396{
397	snd_soc_unregister_codec(&pdev->dev);
398	return 0;
399}
400
401static struct platform_driver stac9766_codec_driver = {
402	.driver = {
403			.name = "stac9766-codec",
404			.owner = THIS_MODULE,
405	},
406
407	.probe = stac9766_probe,
408	.remove = __devexit_p(stac9766_remove),
409};
410
411static int __init stac9766_init(void)
412{
413	return platform_driver_register(&stac9766_codec_driver);
414}
415module_init(stac9766_init);
416
417static void __exit stac9766_exit(void)
418{
419	platform_driver_unregister(&stac9766_codec_driver);
420}
421module_exit(stac9766_exit);
422
423MODULE_DESCRIPTION("ASoC stac9766 driver");
424MODULE_AUTHOR("Jon Smirl <jonsmirl@gmail.com>");
425MODULE_LICENSE("GPL");