1 | // SPDX-License-Identifier: GPL-2.0-only |
2 | /* |
3 | * wm9705.c -- ALSA Soc WM9705 codec support |
4 | * |
5 | * Copyright 2008 Ian Molton <spyro@f2s.com> |
6 | */ |
7 | |
8 | #include <linux/init.h> |
9 | #include <linux/slab.h> |
10 | #include <linux/mfd/wm97xx.h> |
11 | #include <linux/module.h> |
12 | #include <linux/kernel.h> |
13 | #include <linux/device.h> |
14 | #include <linux/regmap.h> |
15 | #include <sound/core.h> |
16 | #include <sound/pcm.h> |
17 | #include <sound/ac97_codec.h> |
18 | #include <sound/ac97/codec.h> |
19 | #include <sound/ac97/compat.h> |
20 | #include <sound/initval.h> |
21 | #include <sound/soc.h> |
22 | |
23 | #define WM9705_VENDOR_ID 0x574d4c05 |
24 | #define WM9705_VENDOR_ID_MASK 0xffffffff |
25 | |
26 | struct wm9705_priv { |
27 | struct snd_ac97 *ac97; |
28 | struct wm97xx_platform_data *mfd_pdata; |
29 | }; |
30 | |
31 | static const struct reg_default wm9705_reg_defaults[] = { |
32 | { 0x02, 0x8000 }, |
33 | { 0x04, 0x8000 }, |
34 | { 0x06, 0x8000 }, |
35 | { 0x0a, 0x8000 }, |
36 | { 0x0c, 0x8008 }, |
37 | { 0x0e, 0x8008 }, |
38 | { 0x10, 0x8808 }, |
39 | { 0x12, 0x8808 }, |
40 | { 0x14, 0x8808 }, |
41 | { 0x16, 0x8808 }, |
42 | { 0x18, 0x8808 }, |
43 | { 0x1a, 0x0000 }, |
44 | { 0x1c, 0x8000 }, |
45 | { 0x20, 0x0000 }, |
46 | { 0x22, 0x0000 }, |
47 | { 0x26, 0x000f }, |
48 | { 0x28, 0x0605 }, |
49 | { 0x2a, 0x0000 }, |
50 | { 0x2c, 0xbb80 }, |
51 | { 0x32, 0xbb80 }, |
52 | { 0x34, 0x2000 }, |
53 | { 0x5a, 0x0000 }, |
54 | { 0x5c, 0x0000 }, |
55 | { 0x72, 0x0808 }, |
56 | { 0x74, 0x0000 }, |
57 | { 0x76, 0x0006 }, |
58 | { 0x78, 0x0000 }, |
59 | { 0x7a, 0x0000 }, |
60 | }; |
61 | |
62 | static const struct regmap_config wm9705_regmap_config = { |
63 | .reg_bits = 16, |
64 | .reg_stride = 2, |
65 | .val_bits = 16, |
66 | .max_register = 0x7e, |
67 | .cache_type = REGCACHE_MAPLE, |
68 | |
69 | .volatile_reg = regmap_ac97_default_volatile, |
70 | |
71 | .reg_defaults = wm9705_reg_defaults, |
72 | .num_reg_defaults = ARRAY_SIZE(wm9705_reg_defaults), |
73 | }; |
74 | |
75 | static const struct snd_kcontrol_new wm9705_snd_ac97_controls[] = { |
76 | SOC_DOUBLE("Master Playback Volume" , AC97_MASTER, 8, 0, 31, 1), |
77 | SOC_SINGLE("Master Playback Switch" , AC97_MASTER, 15, 1, 1), |
78 | SOC_DOUBLE("Headphone Playback Volume" , AC97_HEADPHONE, 8, 0, 31, 1), |
79 | SOC_SINGLE("Headphone Playback Switch" , AC97_HEADPHONE, 15, 1, 1), |
80 | SOC_DOUBLE("PCM Playback Volume" , AC97_PCM, 8, 0, 31, 1), |
81 | SOC_SINGLE("PCM Playback Switch" , AC97_PCM, 15, 1, 1), |
82 | SOC_SINGLE("Mono Playback Volume" , AC97_MASTER_MONO, 0, 31, 1), |
83 | SOC_SINGLE("Mono Playback Switch" , AC97_MASTER_MONO, 15, 1, 1), |
84 | SOC_SINGLE("PCBeep Playback Volume" , AC97_PC_BEEP, 1, 15, 1), |
85 | SOC_SINGLE("Phone Playback Volume" , AC97_PHONE, 0, 31, 1), |
86 | SOC_DOUBLE("Line Playback Volume" , AC97_LINE, 8, 0, 31, 1), |
87 | SOC_DOUBLE("CD Playback Volume" , AC97_CD, 8, 0, 31, 1), |
88 | SOC_SINGLE("Mic Playback Volume" , AC97_MIC, 0, 31, 1), |
89 | SOC_SINGLE("Mic 20dB Boost Switch" , AC97_MIC, 6, 1, 0), |
90 | SOC_DOUBLE("Capture Volume" , AC97_REC_GAIN, 8, 0, 15, 0), |
91 | SOC_SINGLE("Capture Switch" , AC97_REC_GAIN, 15, 1, 1), |
92 | }; |
93 | |
94 | static const char *wm9705_mic[] = {"Mic 1" , "Mic 2" }; |
95 | static const char *wm9705_rec_sel[] = {"Mic" , "CD" , "NC" , "NC" , |
96 | "Line" , "Stereo Mix" , "Mono Mix" , "Phone" }; |
97 | |
98 | static SOC_ENUM_SINGLE_DECL(wm9705_enum_mic, |
99 | AC97_GENERAL_PURPOSE, 8, wm9705_mic); |
100 | static SOC_ENUM_SINGLE_DECL(wm9705_enum_rec_l, |
101 | AC97_REC_SEL, 8, wm9705_rec_sel); |
102 | static SOC_ENUM_SINGLE_DECL(wm9705_enum_rec_r, |
103 | AC97_REC_SEL, 0, wm9705_rec_sel); |
104 | |
105 | /* Headphone Mixer */ |
106 | static const struct snd_kcontrol_new wm9705_hp_mixer_controls[] = { |
107 | SOC_DAPM_SINGLE("PCBeep Playback Switch" , AC97_PC_BEEP, 15, 1, 1), |
108 | SOC_DAPM_SINGLE("CD Playback Switch" , AC97_CD, 15, 1, 1), |
109 | SOC_DAPM_SINGLE("Mic Playback Switch" , AC97_MIC, 15, 1, 1), |
110 | SOC_DAPM_SINGLE("Phone Playback Switch" , AC97_PHONE, 15, 1, 1), |
111 | SOC_DAPM_SINGLE("Line Playback Switch" , AC97_LINE, 15, 1, 1), |
112 | }; |
113 | |
114 | /* Mic source */ |
115 | static const struct snd_kcontrol_new wm9705_mic_src_controls = |
116 | SOC_DAPM_ENUM("Route" , wm9705_enum_mic); |
117 | |
118 | /* Capture source */ |
119 | static const struct snd_kcontrol_new wm9705_capture_selectl_controls = |
120 | SOC_DAPM_ENUM("Route" , wm9705_enum_rec_l); |
121 | static const struct snd_kcontrol_new wm9705_capture_selectr_controls = |
122 | SOC_DAPM_ENUM("Route" , wm9705_enum_rec_r); |
123 | |
124 | /* DAPM widgets */ |
125 | static const struct snd_soc_dapm_widget wm9705_dapm_widgets[] = { |
126 | SND_SOC_DAPM_MUX("Mic Source" , SND_SOC_NOPM, 0, 0, |
127 | &wm9705_mic_src_controls), |
128 | SND_SOC_DAPM_MUX("Left Capture Source" , SND_SOC_NOPM, 0, 0, |
129 | &wm9705_capture_selectl_controls), |
130 | SND_SOC_DAPM_MUX("Right Capture Source" , SND_SOC_NOPM, 0, 0, |
131 | &wm9705_capture_selectr_controls), |
132 | SND_SOC_DAPM_DAC("Left DAC" , "Left HiFi Playback" , |
133 | SND_SOC_NOPM, 0, 0), |
134 | SND_SOC_DAPM_DAC("Right DAC" , "Right HiFi Playback" , |
135 | SND_SOC_NOPM, 0, 0), |
136 | SND_SOC_DAPM_MIXER_NAMED_CTL("HP Mixer" , SND_SOC_NOPM, 0, 0, |
137 | &wm9705_hp_mixer_controls[0], |
138 | ARRAY_SIZE(wm9705_hp_mixer_controls)), |
139 | SND_SOC_DAPM_MIXER("Mono Mixer" , SND_SOC_NOPM, 0, 0, NULL, 0), |
140 | SND_SOC_DAPM_ADC("Left ADC" , "Left HiFi Capture" , SND_SOC_NOPM, 0, 0), |
141 | SND_SOC_DAPM_ADC("Right ADC" , "Right HiFi Capture" , SND_SOC_NOPM, 0, 0), |
142 | SND_SOC_DAPM_PGA("Headphone PGA" , SND_SOC_NOPM, 0, 0, NULL, 0), |
143 | SND_SOC_DAPM_PGA("Speaker PGA" , SND_SOC_NOPM, 0, 0, NULL, 0), |
144 | SND_SOC_DAPM_PGA("Line PGA" , SND_SOC_NOPM, 0, 0, NULL, 0), |
145 | SND_SOC_DAPM_PGA("Line out PGA" , SND_SOC_NOPM, 0, 0, NULL, 0), |
146 | SND_SOC_DAPM_PGA("Mono PGA" , SND_SOC_NOPM, 0, 0, NULL, 0), |
147 | SND_SOC_DAPM_PGA("Phone PGA" , SND_SOC_NOPM, 0, 0, NULL, 0), |
148 | SND_SOC_DAPM_PGA("Mic PGA" , SND_SOC_NOPM, 0, 0, NULL, 0), |
149 | SND_SOC_DAPM_PGA("PCBEEP PGA" , SND_SOC_NOPM, 0, 0, NULL, 0), |
150 | SND_SOC_DAPM_PGA("CD PGA" , SND_SOC_NOPM, 0, 0, NULL, 0), |
151 | SND_SOC_DAPM_PGA("ADC PGA" , SND_SOC_NOPM, 0, 0, NULL, 0), |
152 | SND_SOC_DAPM_OUTPUT("HPOUTL" ), |
153 | SND_SOC_DAPM_OUTPUT("HPOUTR" ), |
154 | SND_SOC_DAPM_OUTPUT("LOUT" ), |
155 | SND_SOC_DAPM_OUTPUT("ROUT" ), |
156 | SND_SOC_DAPM_OUTPUT("MONOOUT" ), |
157 | SND_SOC_DAPM_INPUT("PHONE" ), |
158 | SND_SOC_DAPM_INPUT("LINEINL" ), |
159 | SND_SOC_DAPM_INPUT("LINEINR" ), |
160 | SND_SOC_DAPM_INPUT("CDINL" ), |
161 | SND_SOC_DAPM_INPUT("CDINR" ), |
162 | SND_SOC_DAPM_INPUT("PCBEEP" ), |
163 | SND_SOC_DAPM_INPUT("MIC1" ), |
164 | SND_SOC_DAPM_INPUT("MIC2" ), |
165 | }; |
166 | |
167 | /* Audio map |
168 | * WM9705 has no switches to disable the route from the inputs to the HP mixer |
169 | * so in order to prevent active inputs from forcing the audio outputs to be |
170 | * constantly enabled, we use the mutes on those inputs to simulate such |
171 | * controls. |
172 | */ |
173 | static const struct snd_soc_dapm_route wm9705_audio_map[] = { |
174 | /* HP mixer */ |
175 | {"HP Mixer" , "PCBeep Playback Switch" , "PCBEEP PGA" }, |
176 | {"HP Mixer" , "CD Playback Switch" , "CD PGA" }, |
177 | {"HP Mixer" , "Mic Playback Switch" , "Mic PGA" }, |
178 | {"HP Mixer" , "Phone Playback Switch" , "Phone PGA" }, |
179 | {"HP Mixer" , "Line Playback Switch" , "Line PGA" }, |
180 | {"HP Mixer" , NULL, "Left DAC" }, |
181 | {"HP Mixer" , NULL, "Right DAC" }, |
182 | |
183 | /* mono mixer */ |
184 | {"Mono Mixer" , NULL, "HP Mixer" }, |
185 | |
186 | /* outputs */ |
187 | {"Headphone PGA" , NULL, "HP Mixer" }, |
188 | {"HPOUTL" , NULL, "Headphone PGA" }, |
189 | {"HPOUTR" , NULL, "Headphone PGA" }, |
190 | {"Line out PGA" , NULL, "HP Mixer" }, |
191 | {"LOUT" , NULL, "Line out PGA" }, |
192 | {"ROUT" , NULL, "Line out PGA" }, |
193 | {"Mono PGA" , NULL, "Mono Mixer" }, |
194 | {"MONOOUT" , NULL, "Mono PGA" }, |
195 | |
196 | /* inputs */ |
197 | {"CD PGA" , NULL, "CDINL" }, |
198 | {"CD PGA" , NULL, "CDINR" }, |
199 | {"Line PGA" , NULL, "LINEINL" }, |
200 | {"Line PGA" , NULL, "LINEINR" }, |
201 | {"Phone PGA" , NULL, "PHONE" }, |
202 | {"Mic Source" , "Mic 1" , "MIC1" }, |
203 | {"Mic Source" , "Mic 2" , "MIC2" }, |
204 | {"Mic PGA" , NULL, "Mic Source" }, |
205 | {"PCBEEP PGA" , NULL, "PCBEEP" }, |
206 | |
207 | /* Left capture selector */ |
208 | {"Left Capture Source" , "Mic" , "Mic Source" }, |
209 | {"Left Capture Source" , "CD" , "CDINL" }, |
210 | {"Left Capture Source" , "Line" , "LINEINL" }, |
211 | {"Left Capture Source" , "Stereo Mix" , "HP Mixer" }, |
212 | {"Left Capture Source" , "Mono Mix" , "HP Mixer" }, |
213 | {"Left Capture Source" , "Phone" , "PHONE" }, |
214 | |
215 | /* Right capture source */ |
216 | {"Right Capture Source" , "Mic" , "Mic Source" }, |
217 | {"Right Capture Source" , "CD" , "CDINR" }, |
218 | {"Right Capture Source" , "Line" , "LINEINR" }, |
219 | {"Right Capture Source" , "Stereo Mix" , "HP Mixer" }, |
220 | {"Right Capture Source" , "Mono Mix" , "HP Mixer" }, |
221 | {"Right Capture Source" , "Phone" , "PHONE" }, |
222 | |
223 | {"ADC PGA" , NULL, "Left Capture Source" }, |
224 | {"ADC PGA" , NULL, "Right Capture Source" }, |
225 | |
226 | /* ADC's */ |
227 | {"Left ADC" , NULL, "ADC PGA" }, |
228 | {"Right ADC" , NULL, "ADC PGA" }, |
229 | }; |
230 | |
231 | static int ac97_prepare(struct snd_pcm_substream *substream, |
232 | struct snd_soc_dai *dai) |
233 | { |
234 | struct snd_soc_component *component = dai->component; |
235 | int reg; |
236 | |
237 | snd_soc_component_update_bits(component, AC97_EXTENDED_STATUS, mask: 0x1, val: 0x1); |
238 | |
239 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) |
240 | reg = AC97_PCM_FRONT_DAC_RATE; |
241 | else |
242 | reg = AC97_PCM_LR_ADC_RATE; |
243 | |
244 | return snd_soc_component_write(component, reg, val: substream->runtime->rate); |
245 | } |
246 | |
247 | #define WM9705_AC97_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 | \ |
248 | SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 | \ |
249 | SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 | \ |
250 | SNDRV_PCM_RATE_48000) |
251 | |
252 | static const struct snd_soc_dai_ops wm9705_dai_ops = { |
253 | .prepare = ac97_prepare, |
254 | }; |
255 | |
256 | static struct snd_soc_dai_driver wm9705_dai[] = { |
257 | { |
258 | .name = "wm9705-hifi" , |
259 | .playback = { |
260 | .stream_name = "HiFi Playback" , |
261 | .channels_min = 1, |
262 | .channels_max = 2, |
263 | .rates = WM9705_AC97_RATES, |
264 | .formats = SND_SOC_STD_AC97_FMTS, |
265 | }, |
266 | .capture = { |
267 | .stream_name = "HiFi Capture" , |
268 | .channels_min = 1, |
269 | .channels_max = 2, |
270 | .rates = WM9705_AC97_RATES, |
271 | .formats = SND_SOC_STD_AC97_FMTS, |
272 | }, |
273 | .ops = &wm9705_dai_ops, |
274 | }, |
275 | { |
276 | .name = "wm9705-aux" , |
277 | .playback = { |
278 | .stream_name = "Aux Playback" , |
279 | .channels_min = 1, |
280 | .channels_max = 1, |
281 | .rates = WM9705_AC97_RATES, |
282 | .formats = SNDRV_PCM_FMTBIT_S16_LE, |
283 | }, |
284 | } |
285 | }; |
286 | |
287 | #ifdef CONFIG_PM |
288 | static int wm9705_soc_suspend(struct snd_soc_component *component) |
289 | { |
290 | regcache_cache_bypass(map: component->regmap, enable: true); |
291 | snd_soc_component_write(component, AC97_POWERDOWN, val: 0xffff); |
292 | regcache_cache_bypass(map: component->regmap, enable: false); |
293 | |
294 | return 0; |
295 | } |
296 | |
297 | static int wm9705_soc_resume(struct snd_soc_component *component) |
298 | { |
299 | struct wm9705_priv *wm9705 = snd_soc_component_get_drvdata(c: component); |
300 | int ret; |
301 | |
302 | ret = snd_ac97_reset(ac97: wm9705->ac97, try_warm: true, WM9705_VENDOR_ID, |
303 | WM9705_VENDOR_ID_MASK); |
304 | if (ret < 0) |
305 | return ret; |
306 | |
307 | snd_soc_component_cache_sync(component); |
308 | |
309 | return 0; |
310 | } |
311 | #else |
312 | #define wm9705_soc_suspend NULL |
313 | #define wm9705_soc_resume NULL |
314 | #endif |
315 | |
316 | static int wm9705_soc_probe(struct snd_soc_component *component) |
317 | { |
318 | struct wm9705_priv *wm9705 = snd_soc_component_get_drvdata(c: component); |
319 | struct regmap *regmap; |
320 | |
321 | if (wm9705->mfd_pdata) { |
322 | wm9705->ac97 = wm9705->mfd_pdata->ac97; |
323 | regmap = wm9705->mfd_pdata->regmap; |
324 | } else if (IS_ENABLED(CONFIG_SND_SOC_AC97_BUS)) { |
325 | wm9705->ac97 = snd_soc_new_ac97_component(component, WM9705_VENDOR_ID, |
326 | WM9705_VENDOR_ID_MASK); |
327 | if (IS_ERR(ptr: wm9705->ac97)) { |
328 | dev_err(component->dev, "Failed to register AC97 codec\n" ); |
329 | return PTR_ERR(ptr: wm9705->ac97); |
330 | } |
331 | |
332 | regmap = regmap_init_ac97(wm9705->ac97, &wm9705_regmap_config); |
333 | if (IS_ERR(ptr: regmap)) { |
334 | snd_soc_free_ac97_component(ac97: wm9705->ac97); |
335 | return PTR_ERR(ptr: regmap); |
336 | } |
337 | } else { |
338 | return -ENXIO; |
339 | } |
340 | |
341 | snd_soc_component_set_drvdata(c: component, data: wm9705->ac97); |
342 | snd_soc_component_init_regmap(component, regmap); |
343 | |
344 | return 0; |
345 | } |
346 | |
347 | static void wm9705_soc_remove(struct snd_soc_component *component) |
348 | { |
349 | struct wm9705_priv *wm9705 = snd_soc_component_get_drvdata(c: component); |
350 | |
351 | if (IS_ENABLED(CONFIG_SND_SOC_AC97_BUS) && !wm9705->mfd_pdata) { |
352 | snd_soc_component_exit_regmap(component); |
353 | snd_soc_free_ac97_component(ac97: wm9705->ac97); |
354 | } |
355 | } |
356 | |
357 | static const struct snd_soc_component_driver soc_component_dev_wm9705 = { |
358 | .probe = wm9705_soc_probe, |
359 | .remove = wm9705_soc_remove, |
360 | .suspend = wm9705_soc_suspend, |
361 | .resume = wm9705_soc_resume, |
362 | .controls = wm9705_snd_ac97_controls, |
363 | .num_controls = ARRAY_SIZE(wm9705_snd_ac97_controls), |
364 | .dapm_widgets = wm9705_dapm_widgets, |
365 | .num_dapm_widgets = ARRAY_SIZE(wm9705_dapm_widgets), |
366 | .dapm_routes = wm9705_audio_map, |
367 | .num_dapm_routes = ARRAY_SIZE(wm9705_audio_map), |
368 | .idle_bias_on = 1, |
369 | .use_pmdown_time = 1, |
370 | .endianness = 1, |
371 | }; |
372 | |
373 | static int wm9705_probe(struct platform_device *pdev) |
374 | { |
375 | struct wm9705_priv *wm9705; |
376 | |
377 | wm9705 = devm_kzalloc(dev: &pdev->dev, size: sizeof(*wm9705), GFP_KERNEL); |
378 | if (wm9705 == NULL) |
379 | return -ENOMEM; |
380 | |
381 | wm9705->mfd_pdata = dev_get_platdata(dev: &pdev->dev); |
382 | platform_set_drvdata(pdev, data: wm9705); |
383 | |
384 | return devm_snd_soc_register_component(dev: &pdev->dev, |
385 | component_driver: &soc_component_dev_wm9705, dai_drv: wm9705_dai, ARRAY_SIZE(wm9705_dai)); |
386 | } |
387 | |
388 | static struct platform_driver wm9705_codec_driver = { |
389 | .driver = { |
390 | .name = "wm9705-codec" , |
391 | }, |
392 | |
393 | .probe = wm9705_probe, |
394 | }; |
395 | |
396 | module_platform_driver(wm9705_codec_driver); |
397 | |
398 | MODULE_DESCRIPTION("ASoC WM9705 driver" ); |
399 | MODULE_AUTHOR("Ian Molton" ); |
400 | MODULE_LICENSE("GPL v2" ); |
401 | |