2 * stac9766.c -- ALSA SoC STAC9766 codec support
4 * Copyright 2009 Jon Smirl, Digispeaker
5 * Author: Jon Smirl <jonsmirl@gmail.com>
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.
14 * o Support for AC97 Codec, S/PDIF
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>
31 #define STAC9766_VENDOR_ID 0x83847666
32 #define STAC9766_VENDOR_ID_MASK 0xffffffff
35 * STAC9766 register cache
37 static 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 */
56 static const char *stac9766_record_mux[] = {"Mic", "CD", "Video", "AUX",
57 "Line", "Stereo Mix", "Mono Mix", "Phone"};
58 static const char *stac9766_mono_mux[] = {"Mix", "Mic"};
59 static const char *stac9766_mic_mux[] = {"Mic1", "Mic2"};
60 static const char *stac9766_SPDIF_mux[] = {"PCM", "ADC Record"};
61 static const char *stac9766_popbypass_mux[] = {"Normal", "Bypass Mixer"};
62 static const char *stac9766_record_all_mux[] = {"All analog",
64 static const char *stac9766_boost1[] = {"0dB", "10dB"};
65 static const char *stac9766_boost2[] = {"0dB", "20dB"};
66 static const char *stac9766_stereo_mic[] = {"Off", "On"};
68 static SOC_ENUM_DOUBLE_DECL(stac9766_record_enum,
69 AC97_REC_SEL, 8, 0, stac9766_record_mux);
70 static SOC_ENUM_SINGLE_DECL(stac9766_mono_enum,
71 AC97_GENERAL_PURPOSE, 9, stac9766_mono_mux);
72 static SOC_ENUM_SINGLE_DECL(stac9766_mic_enum,
73 AC97_GENERAL_PURPOSE, 8, stac9766_mic_mux);
74 static SOC_ENUM_SINGLE_DECL(stac9766_SPDIF_enum,
75 AC97_STAC_DA_CONTROL, 1, stac9766_SPDIF_mux);
76 static SOC_ENUM_SINGLE_DECL(stac9766_popbypass_enum,
77 AC97_GENERAL_PURPOSE, 15, stac9766_popbypass_mux);
78 static SOC_ENUM_SINGLE_DECL(stac9766_record_all_enum,
79 AC97_STAC_ANALOG_SPECIAL, 12,
80 stac9766_record_all_mux);
81 static SOC_ENUM_SINGLE_DECL(stac9766_boost1_enum,
82 AC97_MIC, 6, stac9766_boost1); /* 0/10dB */
83 static SOC_ENUM_SINGLE_DECL(stac9766_boost2_enum,
84 AC97_STAC_ANALOG_SPECIAL, 2, stac9766_boost2); /* 0/20dB */
85 static SOC_ENUM_SINGLE_DECL(stac9766_stereo_mic_enum,
86 AC97_STAC_STEREO_MIC, 2, stac9766_stereo_mic);
88 static const DECLARE_TLV_DB_LINEAR(master_tlv, -4600, 0);
89 static const DECLARE_TLV_DB_LINEAR(record_tlv, 0, 2250);
90 static const DECLARE_TLV_DB_LINEAR(beep_tlv, -4500, 0);
91 static const DECLARE_TLV_DB_LINEAR(mix_tlv, -3450, 1200);
93 static 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),
96 SOC_DOUBLE_TLV("Headphone Volume", AC97_HEADPHONE, 8, 0, 31, 1,
98 SOC_SINGLE("Headphone Switch", AC97_HEADPHONE, 15, 1, 1),
99 SOC_SINGLE_TLV("Mono Out Volume", AC97_MASTER_MONO, 0, 31, 1,
101 SOC_SINGLE("Mono Out Switch", AC97_MASTER_MONO, 15, 1, 1),
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),
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),
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),
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),
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),
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),
142 static int stac9766_ac97_write(struct snd_soc_codec *codec, unsigned int reg,
145 struct snd_ac97 *ac97 = snd_soc_codec_get_drvdata(codec);
146 u16 *cache = codec->reg_cache;
148 if (reg > AC97_STAC_PAGE0) {
149 stac9766_ac97_write(codec, AC97_INT_PAGING, 0);
150 soc_ac97_ops->write(ac97, reg, val);
151 stac9766_ac97_write(codec, AC97_INT_PAGING, 1);
154 if (reg / 2 >= ARRAY_SIZE(stac9766_reg))
157 soc_ac97_ops->write(ac97, reg, val);
158 cache[reg / 2] = val;
162 static unsigned int stac9766_ac97_read(struct snd_soc_codec *codec,
165 struct snd_ac97 *ac97 = snd_soc_codec_get_drvdata(codec);
166 u16 val = 0, *cache = codec->reg_cache;
168 if (reg > AC97_STAC_PAGE0) {
169 stac9766_ac97_write(codec, AC97_INT_PAGING, 0);
170 val = soc_ac97_ops->read(ac97, reg - AC97_STAC_PAGE0);
171 stac9766_ac97_write(codec, AC97_INT_PAGING, 1);
174 if (reg / 2 >= ARRAY_SIZE(stac9766_reg))
177 if (reg == AC97_RESET || reg == AC97_GPIO_STATUS ||
178 reg == AC97_INT_PAGING || reg == AC97_VENDOR_ID1 ||
179 reg == AC97_VENDOR_ID2) {
181 val = soc_ac97_ops->read(ac97, reg);
184 return cache[reg / 2];
187 static int ac97_analog_prepare(struct snd_pcm_substream *substream,
188 struct snd_soc_dai *dai)
190 struct snd_soc_codec *codec = dai->codec;
191 struct snd_pcm_runtime *runtime = substream->runtime;
192 unsigned short reg, vra;
194 vra = stac9766_ac97_read(codec, AC97_EXTENDED_STATUS);
196 vra |= 0x1; /* enable variable rate audio */
197 vra &= ~0x4; /* disable SPDIF output */
199 stac9766_ac97_write(codec, AC97_EXTENDED_STATUS, vra);
201 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
202 reg = AC97_PCM_FRONT_DAC_RATE;
204 reg = AC97_PCM_LR_ADC_RATE;
206 return stac9766_ac97_write(codec, reg, runtime->rate);
209 static int ac97_digital_prepare(struct snd_pcm_substream *substream,
210 struct snd_soc_dai *dai)
212 struct snd_soc_codec *codec = dai->codec;
213 struct snd_pcm_runtime *runtime = substream->runtime;
214 unsigned short reg, vra;
216 stac9766_ac97_write(codec, AC97_SPDIF, 0x2002);
218 vra = stac9766_ac97_read(codec, AC97_EXTENDED_STATUS);
219 vra |= 0x5; /* Enable VRA and SPDIF out */
221 stac9766_ac97_write(codec, AC97_EXTENDED_STATUS, vra);
223 reg = AC97_PCM_FRONT_DAC_RATE;
225 return stac9766_ac97_write(codec, reg, runtime->rate);
228 static int stac9766_set_bias_level(struct snd_soc_codec *codec,
229 enum snd_soc_bias_level level)
232 case SND_SOC_BIAS_ON: /* full On */
233 case SND_SOC_BIAS_PREPARE: /* partial On */
234 case SND_SOC_BIAS_STANDBY: /* Off, with power */
235 stac9766_ac97_write(codec, AC97_POWERDOWN, 0x0000);
237 case SND_SOC_BIAS_OFF: /* Off, without power */
238 /* disable everything including AC link */
239 stac9766_ac97_write(codec, AC97_POWERDOWN, 0xffff);
245 static int stac9766_codec_resume(struct snd_soc_codec *codec)
247 struct snd_ac97 *ac97 = snd_soc_codec_get_drvdata(codec);
249 return snd_ac97_reset(ac97, true, STAC9766_VENDOR_ID,
250 STAC9766_VENDOR_ID_MASK);
253 static const struct snd_soc_dai_ops stac9766_dai_ops_analog = {
254 .prepare = ac97_analog_prepare,
257 static const struct snd_soc_dai_ops stac9766_dai_ops_digital = {
258 .prepare = ac97_digital_prepare,
261 static struct snd_soc_dai_driver stac9766_dai[] = {
263 .name = "stac9766-hifi-analog",
265 /* stream cababilities */
267 .stream_name = "stac9766 analog",
270 .rates = SNDRV_PCM_RATE_8000_48000,
271 .formats = SND_SOC_STD_AC97_FMTS,
274 .stream_name = "stac9766 analog",
277 .rates = SNDRV_PCM_RATE_8000_48000,
278 .formats = SND_SOC_STD_AC97_FMTS,
281 .ops = &stac9766_dai_ops_analog,
284 .name = "stac9766-hifi-IEC958",
286 /* stream cababilities */
288 .stream_name = "stac9766 IEC958",
291 .rates = SNDRV_PCM_RATE_32000 | \
292 SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000,
293 .formats = SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_BE,
296 .ops = &stac9766_dai_ops_digital,
300 static int stac9766_codec_probe(struct snd_soc_codec *codec)
302 struct snd_ac97 *ac97;
304 ac97 = snd_soc_new_ac97_codec(codec, STAC9766_VENDOR_ID,
305 STAC9766_VENDOR_ID_MASK);
307 return PTR_ERR(ac97);
309 snd_soc_codec_set_drvdata(codec, ac97);
314 static int stac9766_codec_remove(struct snd_soc_codec *codec)
316 struct snd_ac97 *ac97 = snd_soc_codec_get_drvdata(codec);
318 snd_soc_free_ac97_codec(ac97);
322 static struct snd_soc_codec_driver soc_codec_dev_stac9766 = {
323 .component_driver = {
324 .controls = stac9766_snd_ac97_controls,
325 .num_controls = ARRAY_SIZE(stac9766_snd_ac97_controls),
327 .write = stac9766_ac97_write,
328 .read = stac9766_ac97_read,
329 .set_bias_level = stac9766_set_bias_level,
330 .suspend_bias_off = true,
331 .probe = stac9766_codec_probe,
332 .remove = stac9766_codec_remove,
333 .resume = stac9766_codec_resume,
334 .reg_cache_size = ARRAY_SIZE(stac9766_reg),
335 .reg_word_size = sizeof(u16),
337 .reg_cache_default = stac9766_reg,
340 static int stac9766_probe(struct platform_device *pdev)
342 return snd_soc_register_codec(&pdev->dev,
343 &soc_codec_dev_stac9766, stac9766_dai, ARRAY_SIZE(stac9766_dai));
346 static int stac9766_remove(struct platform_device *pdev)
348 snd_soc_unregister_codec(&pdev->dev);
352 static struct platform_driver stac9766_codec_driver = {
354 .name = "stac9766-codec",
357 .probe = stac9766_probe,
358 .remove = stac9766_remove,
361 module_platform_driver(stac9766_codec_driver);
363 MODULE_DESCRIPTION("ASoC stac9766 driver");
364 MODULE_AUTHOR("Jon Smirl <jonsmirl@gmail.com>");
365 MODULE_LICENSE("GPL");