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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 | ||
31 | #define STAC9766_VERSION "0.10" | |
32 | ||
33 | /* | |
34 | * STAC9766 register cache | |
35 | */ | |
36 | static 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 | ||
05e1efa2 MB |
55 | static const char *stac9766_record_mux[] = {"Mic", "CD", "Video", "AUX", |
56 | "Line", "Stereo Mix", "Mono Mix", "Phone"}; | |
3c166c7f JS |
57 | static const char *stac9766_mono_mux[] = {"Mix", "Mic"}; |
58 | static const char *stac9766_mic_mux[] = {"Mic1", "Mic2"}; | |
59 | static const char *stac9766_SPDIF_mux[] = {"PCM", "ADC Record"}; | |
60 | static const char *stac9766_popbypass_mux[] = {"Normal", "Bypass Mixer"}; | |
05e1efa2 MB |
61 | static const char *stac9766_record_all_mux[] = {"All analog", |
62 | "Analog plus DAC"}; | |
3c166c7f JS |
63 | static const char *stac9766_boost1[] = {"0dB", "10dB"}; |
64 | static const char *stac9766_boost2[] = {"0dB", "20dB"}; | |
65 | static const char *stac9766_stereo_mic[] = {"Off", "On"}; | |
66 | ||
67 | static const struct soc_enum stac9766_record_enum = | |
68 | SOC_ENUM_DOUBLE(AC97_REC_SEL, 8, 0, 8, stac9766_record_mux); | |
69 | static const struct soc_enum stac9766_mono_enum = | |
70 | SOC_ENUM_SINGLE(AC97_GENERAL_PURPOSE, 9, 2, stac9766_mono_mux); | |
71 | static const struct soc_enum stac9766_mic_enum = | |
72 | SOC_ENUM_SINGLE(AC97_GENERAL_PURPOSE, 8, 2, stac9766_mic_mux); | |
73 | static const struct soc_enum stac9766_SPDIF_enum = | |
74 | SOC_ENUM_SINGLE(AC97_STAC_DA_CONTROL, 1, 2, stac9766_SPDIF_mux); | |
75 | static const struct soc_enum stac9766_popbypass_enum = | |
76 | SOC_ENUM_SINGLE(AC97_GENERAL_PURPOSE, 15, 2, stac9766_popbypass_mux); | |
77 | static const struct soc_enum stac9766_record_all_enum = | |
05e1efa2 MB |
78 | SOC_ENUM_SINGLE(AC97_STAC_ANALOG_SPECIAL, 12, 2, |
79 | stac9766_record_all_mux); | |
3c166c7f JS |
80 | static const struct soc_enum stac9766_boost1_enum = |
81 | SOC_ENUM_SINGLE(AC97_MIC, 6, 2, stac9766_boost1); /* 0/10dB */ | |
82 | static const struct soc_enum stac9766_boost2_enum = | |
83 | SOC_ENUM_SINGLE(AC97_STAC_ANALOG_SPECIAL, 2, 2, stac9766_boost2); /* 0/20dB */ | |
84 | static const struct soc_enum stac9766_stereo_mic_enum = | |
85 | SOC_ENUM_SINGLE(AC97_STAC_STEREO_MIC, 2, 1, stac9766_stereo_mic); | |
86 | ||
87 | static const DECLARE_TLV_DB_LINEAR(master_tlv, -4600, 0); | |
88 | static const DECLARE_TLV_DB_LINEAR(record_tlv, 0, 2250); | |
89 | static const DECLARE_TLV_DB_LINEAR(beep_tlv, -4500, 0); | |
90 | static const DECLARE_TLV_DB_LINEAR(mix_tlv, -3450, 1200); | |
91 | ||
92 | static 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), | |
05e1efa2 MB |
95 | SOC_DOUBLE_TLV("Headphone Volume", AC97_HEADPHONE, 8, 0, 31, 1, |
96 | master_tlv), | |
3c166c7f | 97 | SOC_SINGLE("Headphone Switch", AC97_HEADPHONE, 15, 1, 1), |
05e1efa2 MB |
98 | SOC_SINGLE_TLV("Mono Out Volume", AC97_MASTER_MONO, 0, 31, 1, |
99 | master_tlv), | |
3c166c7f JS |
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 | ||
05e1efa2 MB |
141 | static int stac9766_ac97_write(struct snd_soc_codec *codec, unsigned int reg, |
142 | unsigned int val) | |
3c166c7f JS |
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 | } | |
33e319fb | 152 | if (reg / 2 >= ARRAY_SIZE(stac9766_reg)) |
3c166c7f JS |
153 | return -EIO; |
154 | ||
155 | soc_ac97_ops.write(codec->ac97, reg, val); | |
156 | cache[reg / 2] = val; | |
157 | return 0; | |
158 | } | |
159 | ||
05e1efa2 MB |
160 | static unsigned int stac9766_ac97_read(struct snd_soc_codec *codec, |
161 | unsigned int reg) | |
3c166c7f JS |
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 | } | |
33e319fb | 171 | if (reg / 2 >= ARRAY_SIZE(stac9766_reg)) |
3c166c7f JS |
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 | ||
184 | static int ac97_analog_prepare(struct snd_pcm_substream *substream, | |
05e1efa2 | 185 | struct snd_soc_dai *dai) |
3c166c7f JS |
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 */ | |
75b46c13 | 194 | vra &= ~0x4; /* disable SPDIF output */ |
3c166c7f JS |
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 | ||
206 | static int ac97_digital_prepare(struct snd_pcm_substream *substream, | |
05e1efa2 | 207 | struct snd_soc_dai *dai) |
3c166c7f JS |
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 | ||
3c166c7f | 225 | static int stac9766_set_bias_level(struct snd_soc_codec *codec, |
05e1efa2 | 226 | enum snd_soc_bias_level level) |
3c166c7f JS |
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 | } | |
ce6120cc | 239 | codec->dapm.bias_level = level; |
3c166c7f JS |
240 | return 0; |
241 | } | |
242 | ||
05e1efa2 | 243 | static int stac9766_reset(struct snd_soc_codec *codec, int try_warm) |
3c166c7f JS |
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 | ||
f0fba2ad | 259 | static int stac9766_codec_suspend(struct snd_soc_codec *codec, |
05e1efa2 | 260 | pm_message_t state) |
3c166c7f | 261 | { |
3c166c7f JS |
262 | stac9766_set_bias_level(codec, SND_SOC_BIAS_OFF); |
263 | return 0; | |
264 | } | |
265 | ||
f0fba2ad | 266 | static int stac9766_codec_resume(struct snd_soc_codec *codec) |
3c166c7f | 267 | { |
3c166c7f JS |
268 | u16 id, reset; |
269 | ||
270 | reset = 0; | |
271 | /* give the codec an AC97 warm reset to start the link */ | |
272 | reset: | |
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 | ||
3c166c7f JS |
286 | return 0; |
287 | } | |
288 | ||
05e1efa2 | 289 | static struct snd_soc_dai_ops stac9766_dai_ops_analog = { |
3c166c7f JS |
290 | .prepare = ac97_analog_prepare, |
291 | }; | |
292 | ||
05e1efa2 | 293 | static struct snd_soc_dai_ops stac9766_dai_ops_digital = { |
3c166c7f | 294 | .prepare = ac97_digital_prepare, |
3c166c7f JS |
295 | }; |
296 | ||
f0fba2ad | 297 | static struct snd_soc_dai_driver stac9766_dai[] = { |
3c166c7f | 298 | { |
f0fba2ad | 299 | .name = "stac9766-hifi-analog", |
3c166c7f JS |
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 | { | |
f0fba2ad | 321 | .name = "stac9766-hifi-IEC958", |
3c166c7f JS |
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, | |
05e1efa2 MB |
335 | } |
336 | }; | |
3c166c7f | 337 | |
f0fba2ad | 338 | static int stac9766_codec_probe(struct snd_soc_codec *codec) |
3c166c7f | 339 | { |
3c166c7f JS |
340 | int ret = 0; |
341 | ||
342 | printk(KERN_INFO "STAC9766 SoC Audio Codec %s\n", STAC9766_VERSION); | |
343 | ||
3c166c7f JS |
344 | ret = snd_soc_new_ac97_codec(codec, &soc_ac97_ops, 0); |
345 | if (ret < 0) | |
346 | goto codec_err; | |
347 | ||
3c166c7f JS |
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"); | |
f0fba2ad | 354 | goto codec_err; |
3c166c7f JS |
355 | } |
356 | ||
357 | stac9766_set_bias_level(codec, SND_SOC_BIAS_STANDBY); | |
358 | ||
05e1efa2 MB |
359 | snd_soc_add_controls(codec, stac9766_snd_ac97_controls, |
360 | ARRAY_SIZE(stac9766_snd_ac97_controls)); | |
3c166c7f | 361 | |
3c166c7f JS |
362 | return 0; |
363 | ||
3c166c7f | 364 | codec_err: |
f0fba2ad | 365 | snd_soc_free_ac97_codec(codec); |
3c166c7f JS |
366 | return ret; |
367 | } | |
368 | ||
f0fba2ad | 369 | static int stac9766_codec_remove(struct snd_soc_codec *codec) |
3c166c7f | 370 | { |
3c166c7f | 371 | snd_soc_free_ac97_codec(codec); |
3c166c7f JS |
372 | return 0; |
373 | } | |
374 | ||
f0fba2ad LG |
375 | static 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, | |
3c166c7f JS |
379 | .probe = stac9766_codec_probe, |
380 | .remove = stac9766_codec_remove, | |
381 | .suspend = stac9766_codec_suspend, | |
382 | .resume = stac9766_codec_resume, | |
f0fba2ad LG |
383 | .reg_cache_size = sizeof(stac9766_reg), |
384 | .reg_word_size = sizeof(u16), | |
385 | .reg_cache_step = 2, | |
13a2e06c | 386 | .reg_cache_default = stac9766_reg, |
f0fba2ad LG |
387 | }; |
388 | ||
389 | static __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 | ||
395 | static int __devexit stac9766_remove(struct platform_device *pdev) | |
396 | { | |
397 | snd_soc_unregister_codec(&pdev->dev); | |
398 | return 0; | |
399 | } | |
400 | ||
401 | static 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), | |
3c166c7f | 409 | }; |
f0fba2ad LG |
410 | |
411 | static int __init stac9766_init(void) | |
412 | { | |
413 | return platform_driver_register(&stac9766_codec_driver); | |
414 | } | |
415 | module_init(stac9766_init); | |
416 | ||
417 | static void __exit stac9766_exit(void) | |
418 | { | |
419 | platform_driver_unregister(&stac9766_codec_driver); | |
420 | } | |
421 | module_exit(stac9766_exit); | |
3c166c7f | 422 | |
3c166c7f JS |
423 | MODULE_DESCRIPTION("ASoC stac9766 driver"); |
424 | MODULE_AUTHOR("Jon Smirl <jonsmirl@gmail.com>"); | |
425 | MODULE_LICENSE("GPL"); |