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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
26struct wm9705_priv {
27 struct snd_ac97 *ac97;
28 struct wm97xx_platform_data *mfd_pdata;
29};
30
31static 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
62static 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
75static 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
94static const char *wm9705_mic[] = {"Mic 1", "Mic 2"};
95static const char *wm9705_rec_sel[] = {"Mic", "CD", "NC", "NC",
96 "Line", "Stereo Mix", "Mono Mix", "Phone"};
97
98static SOC_ENUM_SINGLE_DECL(wm9705_enum_mic,
99 AC97_GENERAL_PURPOSE, 8, wm9705_mic);
100static SOC_ENUM_SINGLE_DECL(wm9705_enum_rec_l,
101 AC97_REC_SEL, 8, wm9705_rec_sel);
102static SOC_ENUM_SINGLE_DECL(wm9705_enum_rec_r,
103 AC97_REC_SEL, 0, wm9705_rec_sel);
104
105/* Headphone Mixer */
106static 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 */
115static const struct snd_kcontrol_new wm9705_mic_src_controls =
116 SOC_DAPM_ENUM("Route", wm9705_enum_mic);
117
118/* Capture source */
119static const struct snd_kcontrol_new wm9705_capture_selectl_controls =
120 SOC_DAPM_ENUM("Route", wm9705_enum_rec_l);
121static const struct snd_kcontrol_new wm9705_capture_selectr_controls =
122 SOC_DAPM_ENUM("Route", wm9705_enum_rec_r);
123
124/* DAPM widgets */
125static 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 */
173static 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
231static 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, 0x1, 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, 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
252static const struct snd_soc_dai_ops wm9705_dai_ops = {
253 .prepare = ac97_prepare,
254};
255
256static 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
288static int wm9705_soc_suspend(struct snd_soc_component *component)
289{
290 regcache_cache_bypass(component->regmap, true);
291 snd_soc_component_write(component, AC97_POWERDOWN, 0xffff);
292 regcache_cache_bypass(component->regmap, false);
293
294 return 0;
295}
296
297static int wm9705_soc_resume(struct snd_soc_component *component)
298{
299 struct wm9705_priv *wm9705 = snd_soc_component_get_drvdata(component);
300 int ret;
301
302 ret = snd_ac97_reset(wm9705->ac97, 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
316static int wm9705_soc_probe(struct snd_soc_component *component)
317{
318 struct wm9705_priv *wm9705 = snd_soc_component_get_drvdata(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(wm9705->ac97)) {
328 dev_err(component->dev, "Failed to register AC97 codec\n");
329 return PTR_ERR(wm9705->ac97);
330 }
331
332 regmap = regmap_init_ac97(wm9705->ac97, &wm9705_regmap_config);
333 if (IS_ERR(regmap)) {
334 snd_soc_free_ac97_component(wm9705->ac97);
335 return PTR_ERR(regmap);
336 }
337 } else {
338 return -ENXIO;
339 }
340
341 snd_soc_component_set_drvdata(component, wm9705->ac97);
342 snd_soc_component_init_regmap(component, regmap);
343
344 return 0;
345}
346
347static void wm9705_soc_remove(struct snd_soc_component *component)
348{
349 struct wm9705_priv *wm9705 = snd_soc_component_get_drvdata(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(wm9705->ac97);
354 }
355}
356
357static 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
373static int wm9705_probe(struct platform_device *pdev)
374{
375 struct wm9705_priv *wm9705;
376
377 wm9705 = devm_kzalloc(&pdev->dev, sizeof(*wm9705), GFP_KERNEL);
378 if (wm9705 == NULL)
379 return -ENOMEM;
380
381 wm9705->mfd_pdata = dev_get_platdata(&pdev->dev);
382 platform_set_drvdata(pdev, wm9705);
383
384 return devm_snd_soc_register_component(&pdev->dev,
385 &soc_component_dev_wm9705, wm9705_dai, ARRAY_SIZE(wm9705_dai));
386}
387
388static struct platform_driver wm9705_codec_driver = {
389 .driver = {
390 .name = "wm9705-codec",
391 },
392
393 .probe = wm9705_probe,
394};
395
396module_platform_driver(wm9705_codec_driver);
397
398MODULE_DESCRIPTION("ASoC WM9705 driver");
399MODULE_AUTHOR("Ian Molton");
400MODULE_LICENSE("GPL v2");
1/*
2 * wm9705.c -- ALSA Soc WM9705 codec support
3 *
4 * Copyright 2008 Ian Molton <spyro@f2s.com>
5 *
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License as published by the
8 * Free Software Foundation; Version 2 of the License only.
9 *
10 */
11
12#include <linux/init.h>
13#include <linux/slab.h>
14#include <linux/module.h>
15#include <linux/kernel.h>
16#include <linux/device.h>
17#include <sound/core.h>
18#include <sound/pcm.h>
19#include <sound/ac97_codec.h>
20#include <sound/initval.h>
21#include <sound/soc.h>
22
23#include "wm9705.h"
24
25/*
26 * WM9705 register cache
27 */
28static const u16 wm9705_reg[] = {
29 0x6150, 0x8000, 0x8000, 0x8000, /* 0x0 */
30 0x0000, 0x8000, 0x8008, 0x8008, /* 0x8 */
31 0x8808, 0x8808, 0x8808, 0x8808, /* 0x10 */
32 0x8808, 0x0000, 0x8000, 0x0000, /* 0x18 */
33 0x0000, 0x0000, 0x0000, 0x000f, /* 0x20 */
34 0x0605, 0x0000, 0xbb80, 0x0000, /* 0x28 */
35 0x0000, 0xbb80, 0x0000, 0x0000, /* 0x30 */
36 0x0000, 0x2000, 0x0000, 0x0000, /* 0x38 */
37 0x0000, 0x0000, 0x0000, 0x0000, /* 0x40 */
38 0x0000, 0x0000, 0x0000, 0x0000, /* 0x48 */
39 0x0000, 0x0000, 0x0000, 0x0000, /* 0x50 */
40 0x0000, 0x0000, 0x0000, 0x0000, /* 0x58 */
41 0x0000, 0x0000, 0x0000, 0x0000, /* 0x60 */
42 0x0000, 0x0000, 0x0000, 0x0000, /* 0x68 */
43 0x0000, 0x0808, 0x0000, 0x0006, /* 0x70 */
44 0x0000, 0x0000, 0x574d, 0x4c05, /* 0x78 */
45};
46
47static const struct snd_kcontrol_new wm9705_snd_ac97_controls[] = {
48 SOC_DOUBLE("Master Playback Volume", AC97_MASTER, 8, 0, 31, 1),
49 SOC_SINGLE("Master Playback Switch", AC97_MASTER, 15, 1, 1),
50 SOC_DOUBLE("Headphone Playback Volume", AC97_HEADPHONE, 8, 0, 31, 1),
51 SOC_SINGLE("Headphone Playback Switch", AC97_HEADPHONE, 15, 1, 1),
52 SOC_DOUBLE("PCM Playback Volume", AC97_PCM, 8, 0, 31, 1),
53 SOC_SINGLE("PCM Playback Switch", AC97_PCM, 15, 1, 1),
54 SOC_SINGLE("Mono Playback Volume", AC97_MASTER_MONO, 0, 31, 1),
55 SOC_SINGLE("Mono Playback Switch", AC97_MASTER_MONO, 15, 1, 1),
56 SOC_SINGLE("PCBeep Playback Volume", AC97_PC_BEEP, 1, 15, 1),
57 SOC_SINGLE("Phone Playback Volume", AC97_PHONE, 0, 31, 1),
58 SOC_DOUBLE("Line Playback Volume", AC97_LINE, 8, 0, 31, 1),
59 SOC_DOUBLE("CD Playback Volume", AC97_CD, 8, 0, 31, 1),
60 SOC_SINGLE("Mic Playback Volume", AC97_MIC, 0, 31, 1),
61 SOC_SINGLE("Mic 20dB Boost Switch", AC97_MIC, 6, 1, 0),
62 SOC_DOUBLE("Capture Volume", AC97_REC_GAIN, 8, 0, 15, 0),
63 SOC_SINGLE("Capture Switch", AC97_REC_GAIN, 15, 1, 1),
64};
65
66static const char *wm9705_mic[] = {"Mic 1", "Mic 2"};
67static const char *wm9705_rec_sel[] = {"Mic", "CD", "NC", "NC",
68 "Line", "Stereo Mix", "Mono Mix", "Phone"};
69
70static const struct soc_enum wm9705_enum_mic =
71 SOC_ENUM_SINGLE(AC97_GENERAL_PURPOSE, 8, 2, wm9705_mic);
72static const struct soc_enum wm9705_enum_rec_l =
73 SOC_ENUM_SINGLE(AC97_REC_SEL, 8, 8, wm9705_rec_sel);
74static const struct soc_enum wm9705_enum_rec_r =
75 SOC_ENUM_SINGLE(AC97_REC_SEL, 0, 8, wm9705_rec_sel);
76
77/* Headphone Mixer */
78static const struct snd_kcontrol_new wm9705_hp_mixer_controls[] = {
79 SOC_DAPM_SINGLE("PCBeep Playback Switch", AC97_PC_BEEP, 15, 1, 1),
80 SOC_DAPM_SINGLE("CD Playback Switch", AC97_CD, 15, 1, 1),
81 SOC_DAPM_SINGLE("Mic Playback Switch", AC97_MIC, 15, 1, 1),
82 SOC_DAPM_SINGLE("Phone Playback Switch", AC97_PHONE, 15, 1, 1),
83 SOC_DAPM_SINGLE("Line Playback Switch", AC97_LINE, 15, 1, 1),
84};
85
86/* Mic source */
87static const struct snd_kcontrol_new wm9705_mic_src_controls =
88 SOC_DAPM_ENUM("Route", wm9705_enum_mic);
89
90/* Capture source */
91static const struct snd_kcontrol_new wm9705_capture_selectl_controls =
92 SOC_DAPM_ENUM("Route", wm9705_enum_rec_l);
93static const struct snd_kcontrol_new wm9705_capture_selectr_controls =
94 SOC_DAPM_ENUM("Route", wm9705_enum_rec_r);
95
96/* DAPM widgets */
97static const struct snd_soc_dapm_widget wm9705_dapm_widgets[] = {
98 SND_SOC_DAPM_MUX("Mic Source", SND_SOC_NOPM, 0, 0,
99 &wm9705_mic_src_controls),
100 SND_SOC_DAPM_MUX("Left Capture Source", SND_SOC_NOPM, 0, 0,
101 &wm9705_capture_selectl_controls),
102 SND_SOC_DAPM_MUX("Right Capture Source", SND_SOC_NOPM, 0, 0,
103 &wm9705_capture_selectr_controls),
104 SND_SOC_DAPM_DAC("Left DAC", "Left HiFi Playback",
105 SND_SOC_NOPM, 0, 0),
106 SND_SOC_DAPM_DAC("Right DAC", "Right HiFi Playback",
107 SND_SOC_NOPM, 0, 0),
108 SND_SOC_DAPM_MIXER_NAMED_CTL("HP Mixer", SND_SOC_NOPM, 0, 0,
109 &wm9705_hp_mixer_controls[0],
110 ARRAY_SIZE(wm9705_hp_mixer_controls)),
111 SND_SOC_DAPM_MIXER("Mono Mixer", SND_SOC_NOPM, 0, 0, NULL, 0),
112 SND_SOC_DAPM_ADC("Left ADC", "Left HiFi Capture", SND_SOC_NOPM, 0, 0),
113 SND_SOC_DAPM_ADC("Right ADC", "Right HiFi Capture", SND_SOC_NOPM, 0, 0),
114 SND_SOC_DAPM_PGA("Headphone PGA", SND_SOC_NOPM, 0, 0, NULL, 0),
115 SND_SOC_DAPM_PGA("Speaker PGA", SND_SOC_NOPM, 0, 0, NULL, 0),
116 SND_SOC_DAPM_PGA("Line PGA", SND_SOC_NOPM, 0, 0, NULL, 0),
117 SND_SOC_DAPM_PGA("Line out PGA", SND_SOC_NOPM, 0, 0, NULL, 0),
118 SND_SOC_DAPM_PGA("Mono PGA", SND_SOC_NOPM, 0, 0, NULL, 0),
119 SND_SOC_DAPM_PGA("Phone PGA", SND_SOC_NOPM, 0, 0, NULL, 0),
120 SND_SOC_DAPM_PGA("Mic PGA", SND_SOC_NOPM, 0, 0, NULL, 0),
121 SND_SOC_DAPM_PGA("PCBEEP PGA", SND_SOC_NOPM, 0, 0, NULL, 0),
122 SND_SOC_DAPM_PGA("CD PGA", SND_SOC_NOPM, 0, 0, NULL, 0),
123 SND_SOC_DAPM_PGA("ADC PGA", SND_SOC_NOPM, 0, 0, NULL, 0),
124 SND_SOC_DAPM_OUTPUT("HPOUTL"),
125 SND_SOC_DAPM_OUTPUT("HPOUTR"),
126 SND_SOC_DAPM_OUTPUT("LOUT"),
127 SND_SOC_DAPM_OUTPUT("ROUT"),
128 SND_SOC_DAPM_OUTPUT("MONOOUT"),
129 SND_SOC_DAPM_INPUT("PHONE"),
130 SND_SOC_DAPM_INPUT("LINEINL"),
131 SND_SOC_DAPM_INPUT("LINEINR"),
132 SND_SOC_DAPM_INPUT("CDINL"),
133 SND_SOC_DAPM_INPUT("CDINR"),
134 SND_SOC_DAPM_INPUT("PCBEEP"),
135 SND_SOC_DAPM_INPUT("MIC1"),
136 SND_SOC_DAPM_INPUT("MIC2"),
137};
138
139/* Audio map
140 * WM9705 has no switches to disable the route from the inputs to the HP mixer
141 * so in order to prevent active inputs from forcing the audio outputs to be
142 * constantly enabled, we use the mutes on those inputs to simulate such
143 * controls.
144 */
145static const struct snd_soc_dapm_route wm9705_audio_map[] = {
146 /* HP mixer */
147 {"HP Mixer", "PCBeep Playback Switch", "PCBEEP PGA"},
148 {"HP Mixer", "CD Playback Switch", "CD PGA"},
149 {"HP Mixer", "Mic Playback Switch", "Mic PGA"},
150 {"HP Mixer", "Phone Playback Switch", "Phone PGA"},
151 {"HP Mixer", "Line Playback Switch", "Line PGA"},
152 {"HP Mixer", NULL, "Left DAC"},
153 {"HP Mixer", NULL, "Right DAC"},
154
155 /* mono mixer */
156 {"Mono Mixer", NULL, "HP Mixer"},
157
158 /* outputs */
159 {"Headphone PGA", NULL, "HP Mixer"},
160 {"HPOUTL", NULL, "Headphone PGA"},
161 {"HPOUTR", NULL, "Headphone PGA"},
162 {"Line out PGA", NULL, "HP Mixer"},
163 {"LOUT", NULL, "Line out PGA"},
164 {"ROUT", NULL, "Line out PGA"},
165 {"Mono PGA", NULL, "Mono Mixer"},
166 {"MONOOUT", NULL, "Mono PGA"},
167
168 /* inputs */
169 {"CD PGA", NULL, "CDINL"},
170 {"CD PGA", NULL, "CDINR"},
171 {"Line PGA", NULL, "LINEINL"},
172 {"Line PGA", NULL, "LINEINR"},
173 {"Phone PGA", NULL, "PHONE"},
174 {"Mic Source", "Mic 1", "MIC1"},
175 {"Mic Source", "Mic 2", "MIC2"},
176 {"Mic PGA", NULL, "Mic Source"},
177 {"PCBEEP PGA", NULL, "PCBEEP"},
178
179 /* Left capture selector */
180 {"Left Capture Source", "Mic", "Mic Source"},
181 {"Left Capture Source", "CD", "CDINL"},
182 {"Left Capture Source", "Line", "LINEINL"},
183 {"Left Capture Source", "Stereo Mix", "HP Mixer"},
184 {"Left Capture Source", "Mono Mix", "HP Mixer"},
185 {"Left Capture Source", "Phone", "PHONE"},
186
187 /* Right capture source */
188 {"Right Capture Source", "Mic", "Mic Source"},
189 {"Right Capture Source", "CD", "CDINR"},
190 {"Right Capture Source", "Line", "LINEINR"},
191 {"Right Capture Source", "Stereo Mix", "HP Mixer"},
192 {"Right Capture Source", "Mono Mix", "HP Mixer"},
193 {"Right Capture Source", "Phone", "PHONE"},
194
195 {"ADC PGA", NULL, "Left Capture Source"},
196 {"ADC PGA", NULL, "Right Capture Source"},
197
198 /* ADC's */
199 {"Left ADC", NULL, "ADC PGA"},
200 {"Right ADC", NULL, "ADC PGA"},
201};
202
203/* We use a register cache to enhance read performance. */
204static unsigned int ac97_read(struct snd_soc_codec *codec, unsigned int reg)
205{
206 u16 *cache = codec->reg_cache;
207
208 switch (reg) {
209 case AC97_RESET:
210 case AC97_VENDOR_ID1:
211 case AC97_VENDOR_ID2:
212 return soc_ac97_ops.read(codec->ac97, reg);
213 default:
214 reg = reg >> 1;
215
216 if (reg >= (ARRAY_SIZE(wm9705_reg)))
217 return -EIO;
218
219 return cache[reg];
220 }
221}
222
223static int ac97_write(struct snd_soc_codec *codec, unsigned int reg,
224 unsigned int val)
225{
226 u16 *cache = codec->reg_cache;
227
228 soc_ac97_ops.write(codec->ac97, reg, val);
229 reg = reg >> 1;
230 if (reg < (ARRAY_SIZE(wm9705_reg)))
231 cache[reg] = val;
232
233 return 0;
234}
235
236static int ac97_prepare(struct snd_pcm_substream *substream,
237 struct snd_soc_dai *dai)
238{
239 struct snd_pcm_runtime *runtime = substream->runtime;
240 struct snd_soc_pcm_runtime *rtd = substream->private_data;
241 struct snd_soc_codec *codec = rtd->codec;
242 int reg;
243 u16 vra;
244
245 vra = ac97_read(codec, AC97_EXTENDED_STATUS);
246 ac97_write(codec, AC97_EXTENDED_STATUS, vra | 0x1);
247
248 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
249 reg = AC97_PCM_FRONT_DAC_RATE;
250 else
251 reg = AC97_PCM_LR_ADC_RATE;
252
253 return ac97_write(codec, reg, runtime->rate);
254}
255
256#define WM9705_AC97_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 | \
257 SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 | \
258 SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 | \
259 SNDRV_PCM_RATE_48000)
260
261static struct snd_soc_dai_ops wm9705_dai_ops = {
262 .prepare = ac97_prepare,
263};
264
265static struct snd_soc_dai_driver wm9705_dai[] = {
266 {
267 .name = "wm9705-hifi",
268 .ac97_control = 1,
269 .playback = {
270 .stream_name = "HiFi Playback",
271 .channels_min = 1,
272 .channels_max = 2,
273 .rates = WM9705_AC97_RATES,
274 .formats = SND_SOC_STD_AC97_FMTS,
275 },
276 .capture = {
277 .stream_name = "HiFi Capture",
278 .channels_min = 1,
279 .channels_max = 2,
280 .rates = WM9705_AC97_RATES,
281 .formats = SND_SOC_STD_AC97_FMTS,
282 },
283 .ops = &wm9705_dai_ops,
284 },
285 {
286 .name = "wm9705-aux",
287 .playback = {
288 .stream_name = "Aux Playback",
289 .channels_min = 1,
290 .channels_max = 1,
291 .rates = WM9705_AC97_RATES,
292 .formats = SNDRV_PCM_FMTBIT_S16_LE,
293 },
294 }
295};
296
297static int wm9705_reset(struct snd_soc_codec *codec)
298{
299 if (soc_ac97_ops.reset) {
300 soc_ac97_ops.reset(codec->ac97);
301 if (ac97_read(codec, 0) == wm9705_reg[0])
302 return 0; /* Success */
303 }
304
305 return -EIO;
306}
307
308#ifdef CONFIG_PM
309static int wm9705_soc_suspend(struct snd_soc_codec *codec, pm_message_t msg)
310{
311 soc_ac97_ops.write(codec->ac97, AC97_POWERDOWN, 0xffff);
312
313 return 0;
314}
315
316static int wm9705_soc_resume(struct snd_soc_codec *codec)
317{
318 int i, ret;
319 u16 *cache = codec->reg_cache;
320
321 ret = wm9705_reset(codec);
322 if (ret < 0) {
323 printk(KERN_ERR "could not reset AC97 codec\n");
324 return ret;
325 }
326
327 for (i = 2; i < ARRAY_SIZE(wm9705_reg) << 1; i += 2) {
328 soc_ac97_ops.write(codec->ac97, i, cache[i>>1]);
329 }
330
331 return 0;
332}
333#else
334#define wm9705_soc_suspend NULL
335#define wm9705_soc_resume NULL
336#endif
337
338static int wm9705_soc_probe(struct snd_soc_codec *codec)
339{
340 int ret = 0;
341
342 printk(KERN_INFO "WM9705 SoC Audio Codec\n");
343
344 ret = snd_soc_new_ac97_codec(codec, &soc_ac97_ops, 0);
345 if (ret < 0) {
346 printk(KERN_ERR "wm9705: failed to register AC97 codec\n");
347 return ret;
348 }
349
350 ret = wm9705_reset(codec);
351 if (ret)
352 goto reset_err;
353
354 snd_soc_add_controls(codec, wm9705_snd_ac97_controls,
355 ARRAY_SIZE(wm9705_snd_ac97_controls));
356
357 return 0;
358
359reset_err:
360 snd_soc_free_ac97_codec(codec);
361 return ret;
362}
363
364static int wm9705_soc_remove(struct snd_soc_codec *codec)
365{
366 snd_soc_free_ac97_codec(codec);
367 return 0;
368}
369
370static struct snd_soc_codec_driver soc_codec_dev_wm9705 = {
371 .probe = wm9705_soc_probe,
372 .remove = wm9705_soc_remove,
373 .suspend = wm9705_soc_suspend,
374 .resume = wm9705_soc_resume,
375 .read = ac97_read,
376 .write = ac97_write,
377 .reg_cache_size = ARRAY_SIZE(wm9705_reg),
378 .reg_word_size = sizeof(u16),
379 .reg_cache_step = 2,
380 .reg_cache_default = wm9705_reg,
381 .dapm_widgets = wm9705_dapm_widgets,
382 .num_dapm_widgets = ARRAY_SIZE(wm9705_dapm_widgets),
383 .dapm_routes = wm9705_audio_map,
384 .num_dapm_routes = ARRAY_SIZE(wm9705_audio_map),
385};
386
387static __devinit int wm9705_probe(struct platform_device *pdev)
388{
389 return snd_soc_register_codec(&pdev->dev,
390 &soc_codec_dev_wm9705, wm9705_dai, ARRAY_SIZE(wm9705_dai));
391}
392
393static int __devexit wm9705_remove(struct platform_device *pdev)
394{
395 snd_soc_unregister_codec(&pdev->dev);
396 return 0;
397}
398
399static struct platform_driver wm9705_codec_driver = {
400 .driver = {
401 .name = "wm9705-codec",
402 .owner = THIS_MODULE,
403 },
404
405 .probe = wm9705_probe,
406 .remove = __devexit_p(wm9705_remove),
407};
408
409static int __init wm9705_init(void)
410{
411 return platform_driver_register(&wm9705_codec_driver);
412}
413module_init(wm9705_init);
414
415static void __exit wm9705_exit(void)
416{
417 platform_driver_unregister(&wm9705_codec_driver);
418}
419module_exit(wm9705_exit);
420
421MODULE_DESCRIPTION("ASoC WM9705 driver");
422MODULE_AUTHOR("Ian Molton");
423MODULE_LICENSE("GPL v2");