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_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 | |
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 | |
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, mask: 0x5, val: 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, val: runtime->rate); |
180 | } |
181 | |
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, val: 0x2002); |
190 | |
191 | /* Enable VRA and SPDIF out */ |
192 | snd_soc_component_update_bits(component, AC97_EXTENDED_STATUS, mask: 0x5, val: 0x5); |
193 | |
194 | reg = AC97_PCM_FRONT_DAC_RATE; |
195 | |
196 | return snd_soc_component_write(component, reg, val: runtime->rate); |
197 | } |
198 | |
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, val: 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, val: 0xffff); |
211 | break; |
212 | } |
213 | return 0; |
214 | } |
215 | |
216 | static int stac9766_component_resume(struct snd_soc_component *component) |
217 | { |
218 | struct snd_ac97 *ac97 = snd_soc_component_get_drvdata(c: component); |
219 | |
220 | return snd_ac97_reset(ac97, try_warm: 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 | |
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(ptr: ac97)) |
280 | return PTR_ERR(ptr: ac97); |
281 | |
282 | regmap = regmap_init_ac97(ac97, &stac9766_regmap_config); |
283 | if (IS_ERR(ptr: regmap)) { |
284 | ret = PTR_ERR(ptr: regmap); |
285 | goto err_free_ac97; |
286 | } |
287 | |
288 | snd_soc_component_init_regmap(component, regmap); |
289 | snd_soc_component_set_drvdata(c: component, data: ac97); |
290 | |
291 | return 0; |
292 | err_free_ac97: |
293 | snd_soc_free_ac97_component(ac97); |
294 | return ret; |
295 | } |
296 | |
297 | static void stac9766_component_remove(struct snd_soc_component *component) |
298 | { |
299 | struct snd_ac97 *ac97 = snd_soc_component_get_drvdata(c: 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 | }; |
317 | |
318 | static int stac9766_probe(struct platform_device *pdev) |
319 | { |
320 | return devm_snd_soc_register_component(dev: &pdev->dev, |
321 | component_driver: &soc_component_dev_stac9766, dai_drv: stac9766_dai, ARRAY_SIZE(stac9766_dai)); |
322 | } |
323 | |
324 | static struct platform_driver stac9766_codec_driver = { |
325 | .driver = { |
326 | .name = "stac9766-codec" , |
327 | }, |
328 | |
329 | .probe = stac9766_probe, |
330 | }; |
331 | |
332 | module_platform_driver(stac9766_codec_driver); |
333 | |
334 | MODULE_DESCRIPTION("ASoC stac9766 driver" ); |
335 | MODULE_AUTHOR("Jon Smirl <jonsmirl@gmail.com>" ); |
336 | MODULE_LICENSE("GPL" ); |
337 | |