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
33 static 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
65 static 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_RBTREE,
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
78 static const char *stac9766_record_mux[] = {"Mic", "CD", "Video", "AUX",
79 "Line", "Stereo Mix", "Mono Mix", "Phone"};
80 static const char *stac9766_mono_mux[] = {"Mix", "Mic"};
81 static const char *stac9766_mic_mux[] = {"Mic1", "Mic2"};
82 static const char *stac9766_SPDIF_mux[] = {"PCM", "ADC Record"};
83 static const char *stac9766_popbypass_mux[] = {"Normal", "Bypass Mixer"};
84 static const char *stac9766_record_all_mux[] = {"All analog",
85 "Analog plus DAC"};
86 static const char *stac9766_boost1[] = {"0dB", "10dB"};
87 static const char *stac9766_boost2[] = {"0dB", "20dB"};
88 static const char *stac9766_stereo_mic[] = {"Off", "On"};
89
90 static SOC_ENUM_DOUBLE_DECL(stac9766_record_enum,
91 AC97_REC_SEL, 8, 0, stac9766_record_mux);
92 static SOC_ENUM_SINGLE_DECL(stac9766_mono_enum,
93 AC97_GENERAL_PURPOSE, 9, stac9766_mono_mux);
94 static SOC_ENUM_SINGLE_DECL(stac9766_mic_enum,
95 AC97_GENERAL_PURPOSE, 8, stac9766_mic_mux);
96 static SOC_ENUM_SINGLE_DECL(stac9766_SPDIF_enum,
97 AC97_STAC_DA_CONTROL, 1, stac9766_SPDIF_mux);
98 static SOC_ENUM_SINGLE_DECL(stac9766_popbypass_enum,
99 AC97_GENERAL_PURPOSE, 15, stac9766_popbypass_mux);
100 static SOC_ENUM_SINGLE_DECL(stac9766_record_all_enum,
101 AC97_STAC_ANALOG_SPECIAL, 12,
102 stac9766_record_all_mux);
103 static SOC_ENUM_SINGLE_DECL(stac9766_boost1_enum,
104 AC97_MIC, 6, stac9766_boost1); /* 0/10dB */
105 static SOC_ENUM_SINGLE_DECL(stac9766_boost2_enum,
106 AC97_STAC_ANALOG_SPECIAL, 2, stac9766_boost2); /* 0/20dB */
107 static SOC_ENUM_SINGLE_DECL(stac9766_stereo_mic_enum,
108 AC97_STAC_STEREO_MIC, 2, stac9766_stereo_mic);
109
110 static const SNDRV_CTL_TLVD_DECLARE_DB_SCALE(master_tlv, -4650, 150, 0);
111 static const SNDRV_CTL_TLVD_DECLARE_DB_SCALE(record_tlv, 0, 150, 0);
112 static const SNDRV_CTL_TLVD_DECLARE_DB_SCALE(beep_tlv, -4500, 300, 0);
113 static const SNDRV_CTL_TLVD_DECLARE_DB_SCALE(mix_tlv, -3450, 150, 0);
114
115 static 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
ac97_analog_prepare(struct snd_pcm_substream * substream,struct snd_soc_dai * dai)164 static 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
ac97_digital_prepare(struct snd_pcm_substream * substream,struct snd_soc_dai * dai)182 static 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
stac9766_set_bias_level(struct snd_soc_component * component,enum snd_soc_bias_level level)199 static 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
stac9766_component_resume(struct snd_soc_component * component)216 static 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
224 static const struct snd_soc_dai_ops stac9766_dai_ops_analog = {
225 .prepare = ac97_analog_prepare,
226 };
227
228 static const struct snd_soc_dai_ops stac9766_dai_ops_digital = {
229 .prepare = ac97_digital_prepare,
230 };
231
232 static 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
stac9766_component_probe(struct snd_soc_component * component)271 static 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;
292 err_free_ac97:
293 snd_soc_free_ac97_component(ac97);
294 return ret;
295 }
296
stac9766_component_remove(struct snd_soc_component * component)297 static 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
305 static 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 .non_legacy_dai_naming = 1,
317
318 };
319
stac9766_probe(struct platform_device * pdev)320 static int stac9766_probe(struct platform_device *pdev)
321 {
322 return devm_snd_soc_register_component(&pdev->dev,
323 &soc_component_dev_stac9766, stac9766_dai, ARRAY_SIZE(stac9766_dai));
324 }
325
326 static struct platform_driver stac9766_codec_driver = {
327 .driver = {
328 .name = "stac9766-codec",
329 },
330
331 .probe = stac9766_probe,
332 };
333
334 module_platform_driver(stac9766_codec_driver);
335
336 MODULE_DESCRIPTION("ASoC stac9766 driver");
337 MODULE_AUTHOR("Jon Smirl <jonsmirl@gmail.com>");
338 MODULE_LICENSE("GPL");
339
