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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#define WM9705_VENDOR_ID 0x574d4c05
26#define WM9705_VENDOR_ID_MASK 0xffffffff
27
28
29
30
31static const u16 wm9705_reg[] = {
32 0x6150, 0x8000, 0x8000, 0x8000,
33 0x0000, 0x8000, 0x8008, 0x8008,
34 0x8808, 0x8808, 0x8808, 0x8808,
35 0x8808, 0x0000, 0x8000, 0x0000,
36 0x0000, 0x0000, 0x0000, 0x000f,
37 0x0605, 0x0000, 0xbb80, 0x0000,
38 0x0000, 0xbb80, 0x0000, 0x0000,
39 0x0000, 0x2000, 0x0000, 0x0000,
40 0x0000, 0x0000, 0x0000, 0x0000,
41 0x0000, 0x0000, 0x0000, 0x0000,
42 0x0000, 0x0000, 0x0000, 0x0000,
43 0x0000, 0x0000, 0x0000, 0x0000,
44 0x0000, 0x0000, 0x0000, 0x0000,
45 0x0000, 0x0000, 0x0000, 0x0000,
46 0x0000, 0x0808, 0x0000, 0x0006,
47 0x0000, 0x0000, 0x574d, 0x4c05,
48};
49
50static const struct snd_kcontrol_new wm9705_snd_ac97_controls[] = {
51 SOC_DOUBLE("Master Playback Volume", AC97_MASTER, 8, 0, 31, 1),
52 SOC_SINGLE("Master Playback Switch", AC97_MASTER, 15, 1, 1),
53 SOC_DOUBLE("Headphone Playback Volume", AC97_HEADPHONE, 8, 0, 31, 1),
54 SOC_SINGLE("Headphone Playback Switch", AC97_HEADPHONE, 15, 1, 1),
55 SOC_DOUBLE("PCM Playback Volume", AC97_PCM, 8, 0, 31, 1),
56 SOC_SINGLE("PCM Playback Switch", AC97_PCM, 15, 1, 1),
57 SOC_SINGLE("Mono Playback Volume", AC97_MASTER_MONO, 0, 31, 1),
58 SOC_SINGLE("Mono Playback Switch", AC97_MASTER_MONO, 15, 1, 1),
59 SOC_SINGLE("PCBeep Playback Volume", AC97_PC_BEEP, 1, 15, 1),
60 SOC_SINGLE("Phone Playback Volume", AC97_PHONE, 0, 31, 1),
61 SOC_DOUBLE("Line Playback Volume", AC97_LINE, 8, 0, 31, 1),
62 SOC_DOUBLE("CD Playback Volume", AC97_CD, 8, 0, 31, 1),
63 SOC_SINGLE("Mic Playback Volume", AC97_MIC, 0, 31, 1),
64 SOC_SINGLE("Mic 20dB Boost Switch", AC97_MIC, 6, 1, 0),
65 SOC_DOUBLE("Capture Volume", AC97_REC_GAIN, 8, 0, 15, 0),
66 SOC_SINGLE("Capture Switch", AC97_REC_GAIN, 15, 1, 1),
67};
68
69static const char *wm9705_mic[] = {"Mic 1", "Mic 2"};
70static const char *wm9705_rec_sel[] = {"Mic", "CD", "NC", "NC",
71 "Line", "Stereo Mix", "Mono Mix", "Phone"};
72
73static SOC_ENUM_SINGLE_DECL(wm9705_enum_mic,
74 AC97_GENERAL_PURPOSE, 8, wm9705_mic);
75static SOC_ENUM_SINGLE_DECL(wm9705_enum_rec_l,
76 AC97_REC_SEL, 8, wm9705_rec_sel);
77static SOC_ENUM_SINGLE_DECL(wm9705_enum_rec_r,
78 AC97_REC_SEL, 0, wm9705_rec_sel);
79
80
81static const struct snd_kcontrol_new wm9705_hp_mixer_controls[] = {
82 SOC_DAPM_SINGLE("PCBeep Playback Switch", AC97_PC_BEEP, 15, 1, 1),
83 SOC_DAPM_SINGLE("CD Playback Switch", AC97_CD, 15, 1, 1),
84 SOC_DAPM_SINGLE("Mic Playback Switch", AC97_MIC, 15, 1, 1),
85 SOC_DAPM_SINGLE("Phone Playback Switch", AC97_PHONE, 15, 1, 1),
86 SOC_DAPM_SINGLE("Line Playback Switch", AC97_LINE, 15, 1, 1),
87};
88
89
90static const struct snd_kcontrol_new wm9705_mic_src_controls =
91 SOC_DAPM_ENUM("Route", wm9705_enum_mic);
92
93
94static const struct snd_kcontrol_new wm9705_capture_selectl_controls =
95 SOC_DAPM_ENUM("Route", wm9705_enum_rec_l);
96static const struct snd_kcontrol_new wm9705_capture_selectr_controls =
97 SOC_DAPM_ENUM("Route", wm9705_enum_rec_r);
98
99
100static const struct snd_soc_dapm_widget wm9705_dapm_widgets[] = {
101 SND_SOC_DAPM_MUX("Mic Source", SND_SOC_NOPM, 0, 0,
102 &wm9705_mic_src_controls),
103 SND_SOC_DAPM_MUX("Left Capture Source", SND_SOC_NOPM, 0, 0,
104 &wm9705_capture_selectl_controls),
105 SND_SOC_DAPM_MUX("Right Capture Source", SND_SOC_NOPM, 0, 0,
106 &wm9705_capture_selectr_controls),
107 SND_SOC_DAPM_DAC("Left DAC", "Left HiFi Playback",
108 SND_SOC_NOPM, 0, 0),
109 SND_SOC_DAPM_DAC("Right DAC", "Right HiFi Playback",
110 SND_SOC_NOPM, 0, 0),
111 SND_SOC_DAPM_MIXER_NAMED_CTL("HP Mixer", SND_SOC_NOPM, 0, 0,
112 &wm9705_hp_mixer_controls[0],
113 ARRAY_SIZE(wm9705_hp_mixer_controls)),
114 SND_SOC_DAPM_MIXER("Mono Mixer", SND_SOC_NOPM, 0, 0, NULL, 0),
115 SND_SOC_DAPM_ADC("Left ADC", "Left HiFi Capture", SND_SOC_NOPM, 0, 0),
116 SND_SOC_DAPM_ADC("Right ADC", "Right HiFi Capture", SND_SOC_NOPM, 0, 0),
117 SND_SOC_DAPM_PGA("Headphone PGA", SND_SOC_NOPM, 0, 0, NULL, 0),
118 SND_SOC_DAPM_PGA("Speaker PGA", SND_SOC_NOPM, 0, 0, NULL, 0),
119 SND_SOC_DAPM_PGA("Line PGA", SND_SOC_NOPM, 0, 0, NULL, 0),
120 SND_SOC_DAPM_PGA("Line out PGA", SND_SOC_NOPM, 0, 0, NULL, 0),
121 SND_SOC_DAPM_PGA("Mono PGA", SND_SOC_NOPM, 0, 0, NULL, 0),
122 SND_SOC_DAPM_PGA("Phone PGA", SND_SOC_NOPM, 0, 0, NULL, 0),
123 SND_SOC_DAPM_PGA("Mic PGA", SND_SOC_NOPM, 0, 0, NULL, 0),
124 SND_SOC_DAPM_PGA("PCBEEP PGA", SND_SOC_NOPM, 0, 0, NULL, 0),
125 SND_SOC_DAPM_PGA("CD PGA", SND_SOC_NOPM, 0, 0, NULL, 0),
126 SND_SOC_DAPM_PGA("ADC PGA", SND_SOC_NOPM, 0, 0, NULL, 0),
127 SND_SOC_DAPM_OUTPUT("HPOUTL"),
128 SND_SOC_DAPM_OUTPUT("HPOUTR"),
129 SND_SOC_DAPM_OUTPUT("LOUT"),
130 SND_SOC_DAPM_OUTPUT("ROUT"),
131 SND_SOC_DAPM_OUTPUT("MONOOUT"),
132 SND_SOC_DAPM_INPUT("PHONE"),
133 SND_SOC_DAPM_INPUT("LINEINL"),
134 SND_SOC_DAPM_INPUT("LINEINR"),
135 SND_SOC_DAPM_INPUT("CDINL"),
136 SND_SOC_DAPM_INPUT("CDINR"),
137 SND_SOC_DAPM_INPUT("PCBEEP"),
138 SND_SOC_DAPM_INPUT("MIC1"),
139 SND_SOC_DAPM_INPUT("MIC2"),
140};
141
142
143
144
145
146
147
148static const struct snd_soc_dapm_route wm9705_audio_map[] = {
149
150 {"HP Mixer", "PCBeep Playback Switch", "PCBEEP PGA"},
151 {"HP Mixer", "CD Playback Switch", "CD PGA"},
152 {"HP Mixer", "Mic Playback Switch", "Mic PGA"},
153 {"HP Mixer", "Phone Playback Switch", "Phone PGA"},
154 {"HP Mixer", "Line Playback Switch", "Line PGA"},
155 {"HP Mixer", NULL, "Left DAC"},
156 {"HP Mixer", NULL, "Right DAC"},
157
158
159 {"Mono Mixer", NULL, "HP Mixer"},
160
161
162 {"Headphone PGA", NULL, "HP Mixer"},
163 {"HPOUTL", NULL, "Headphone PGA"},
164 {"HPOUTR", NULL, "Headphone PGA"},
165 {"Line out PGA", NULL, "HP Mixer"},
166 {"LOUT", NULL, "Line out PGA"},
167 {"ROUT", NULL, "Line out PGA"},
168 {"Mono PGA", NULL, "Mono Mixer"},
169 {"MONOOUT", NULL, "Mono PGA"},
170
171
172 {"CD PGA", NULL, "CDINL"},
173 {"CD PGA", NULL, "CDINR"},
174 {"Line PGA", NULL, "LINEINL"},
175 {"Line PGA", NULL, "LINEINR"},
176 {"Phone PGA", NULL, "PHONE"},
177 {"Mic Source", "Mic 1", "MIC1"},
178 {"Mic Source", "Mic 2", "MIC2"},
179 {"Mic PGA", NULL, "Mic Source"},
180 {"PCBEEP PGA", NULL, "PCBEEP"},
181
182
183 {"Left Capture Source", "Mic", "Mic Source"},
184 {"Left Capture Source", "CD", "CDINL"},
185 {"Left Capture Source", "Line", "LINEINL"},
186 {"Left Capture Source", "Stereo Mix", "HP Mixer"},
187 {"Left Capture Source", "Mono Mix", "HP Mixer"},
188 {"Left Capture Source", "Phone", "PHONE"},
189
190
191 {"Right Capture Source", "Mic", "Mic Source"},
192 {"Right Capture Source", "CD", "CDINR"},
193 {"Right Capture Source", "Line", "LINEINR"},
194 {"Right Capture Source", "Stereo Mix", "HP Mixer"},
195 {"Right Capture Source", "Mono Mix", "HP Mixer"},
196 {"Right Capture Source", "Phone", "PHONE"},
197
198 {"ADC PGA", NULL, "Left Capture Source"},
199 {"ADC PGA", NULL, "Right Capture Source"},
200
201
202 {"Left ADC", NULL, "ADC PGA"},
203 {"Right ADC", NULL, "ADC PGA"},
204};
205
206
207static unsigned int ac97_read(struct snd_soc_codec *codec, unsigned int reg)
208{
209 struct snd_ac97 *ac97 = snd_soc_codec_get_drvdata(codec);
210 u16 *cache = codec->reg_cache;
211
212 switch (reg) {
213 case AC97_RESET:
214 case AC97_VENDOR_ID1:
215 case AC97_VENDOR_ID2:
216 return soc_ac97_ops->read(ac97, reg);
217 default:
218 reg = reg >> 1;
219
220 if (reg >= (ARRAY_SIZE(wm9705_reg)))
221 return -EIO;
222
223 return cache[reg];
224 }
225}
226
227static int ac97_write(struct snd_soc_codec *codec, unsigned int reg,
228 unsigned int val)
229{
230 struct snd_ac97 *ac97 = snd_soc_codec_get_drvdata(codec);
231 u16 *cache = codec->reg_cache;
232
233 soc_ac97_ops->write(ac97, reg, val);
234 reg = reg >> 1;
235 if (reg < (ARRAY_SIZE(wm9705_reg)))
236 cache[reg] = val;
237
238 return 0;
239}
240
241static int ac97_prepare(struct snd_pcm_substream *substream,
242 struct snd_soc_dai *dai)
243{
244 struct snd_soc_codec *codec = dai->codec;
245 int reg;
246 u16 vra;
247
248 vra = ac97_read(codec, AC97_EXTENDED_STATUS);
249 ac97_write(codec, AC97_EXTENDED_STATUS, vra | 0x1);
250
251 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
252 reg = AC97_PCM_FRONT_DAC_RATE;
253 else
254 reg = AC97_PCM_LR_ADC_RATE;
255
256 return ac97_write(codec, reg, substream->runtime->rate);
257}
258
259#define WM9705_AC97_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 | \
260 SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 | \
261 SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 | \
262 SNDRV_PCM_RATE_48000)
263
264static const struct snd_soc_dai_ops wm9705_dai_ops = {
265 .prepare = ac97_prepare,
266};
267
268static struct snd_soc_dai_driver wm9705_dai[] = {
269 {
270 .name = "wm9705-hifi",
271 .playback = {
272 .stream_name = "HiFi Playback",
273 .channels_min = 1,
274 .channels_max = 2,
275 .rates = WM9705_AC97_RATES,
276 .formats = SND_SOC_STD_AC97_FMTS,
277 },
278 .capture = {
279 .stream_name = "HiFi Capture",
280 .channels_min = 1,
281 .channels_max = 2,
282 .rates = WM9705_AC97_RATES,
283 .formats = SND_SOC_STD_AC97_FMTS,
284 },
285 .ops = &wm9705_dai_ops,
286 },
287 {
288 .name = "wm9705-aux",
289 .playback = {
290 .stream_name = "Aux Playback",
291 .channels_min = 1,
292 .channels_max = 1,
293 .rates = WM9705_AC97_RATES,
294 .formats = SNDRV_PCM_FMTBIT_S16_LE,
295 },
296 }
297};
298
299#ifdef CONFIG_PM
300static int wm9705_soc_suspend(struct snd_soc_codec *codec)
301{
302 struct snd_ac97 *ac97 = snd_soc_codec_get_drvdata(codec);
303
304 soc_ac97_ops->write(ac97, AC97_POWERDOWN, 0xffff);
305
306 return 0;
307}
308
309static int wm9705_soc_resume(struct snd_soc_codec *codec)
310{
311 struct snd_ac97 *ac97 = snd_soc_codec_get_drvdata(codec);
312 int i, ret;
313 u16 *cache = codec->reg_cache;
314
315 ret = snd_ac97_reset(ac97, true, WM9705_VENDOR_ID,
316 WM9705_VENDOR_ID_MASK);
317 if (ret < 0)
318 return ret;
319
320 for (i = 2; i < ARRAY_SIZE(wm9705_reg) << 1; i += 2) {
321 soc_ac97_ops->write(ac97, i, cache[i>>1]);
322 }
323
324 return 0;
325}
326#else
327#define wm9705_soc_suspend NULL
328#define wm9705_soc_resume NULL
329#endif
330
331static int wm9705_soc_probe(struct snd_soc_codec *codec)
332{
333 struct snd_ac97 *ac97;
334
335 ac97 = snd_soc_new_ac97_codec(codec, WM9705_VENDOR_ID,
336 WM9705_VENDOR_ID_MASK);
337 if (IS_ERR(ac97)) {
338 dev_err(codec->dev, "Failed to register AC97 codec\n");
339 return PTR_ERR(ac97);
340 }
341
342 snd_soc_codec_set_drvdata(codec, ac97);
343
344 return 0;
345}
346
347static int wm9705_soc_remove(struct snd_soc_codec *codec)
348{
349 struct snd_ac97 *ac97 = snd_soc_codec_get_drvdata(codec);
350
351 snd_soc_free_ac97_codec(ac97);
352 return 0;
353}
354
355static const struct snd_soc_codec_driver soc_codec_dev_wm9705 = {
356 .probe = wm9705_soc_probe,
357 .remove = wm9705_soc_remove,
358 .suspend = wm9705_soc_suspend,
359 .resume = wm9705_soc_resume,
360 .read = ac97_read,
361 .write = ac97_write,
362 .reg_cache_size = ARRAY_SIZE(wm9705_reg),
363 .reg_word_size = sizeof(u16),
364 .reg_cache_step = 2,
365 .reg_cache_default = wm9705_reg,
366
367 .component_driver = {
368 .controls = wm9705_snd_ac97_controls,
369 .num_controls = ARRAY_SIZE(wm9705_snd_ac97_controls),
370 .dapm_widgets = wm9705_dapm_widgets,
371 .num_dapm_widgets = ARRAY_SIZE(wm9705_dapm_widgets),
372 .dapm_routes = wm9705_audio_map,
373 .num_dapm_routes = ARRAY_SIZE(wm9705_audio_map),
374 },
375};
376
377static int wm9705_probe(struct platform_device *pdev)
378{
379 return snd_soc_register_codec(&pdev->dev,
380 &soc_codec_dev_wm9705, wm9705_dai, ARRAY_SIZE(wm9705_dai));
381}
382
383static int wm9705_remove(struct platform_device *pdev)
384{
385 snd_soc_unregister_codec(&pdev->dev);
386 return 0;
387}
388
389static struct platform_driver wm9705_codec_driver = {
390 .driver = {
391 .name = "wm9705-codec",
392 },
393
394 .probe = wm9705_probe,
395 .remove = wm9705_remove,
396};
397
398module_platform_driver(wm9705_codec_driver);
399
400MODULE_DESCRIPTION("ASoC WM9705 driver");
401MODULE_AUTHOR("Ian Molton");
402MODULE_LICENSE("GPL v2");
403
