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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
26
27
28static const u16 wm9705_reg[] = {
29 0x6150, 0x8000, 0x8000, 0x8000,
30 0x0000, 0x8000, 0x8008, 0x8008,
31 0x8808, 0x8808, 0x8808, 0x8808,
32 0x8808, 0x0000, 0x8000, 0x0000,
33 0x0000, 0x0000, 0x0000, 0x000f,
34 0x0605, 0x0000, 0xbb80, 0x0000,
35 0x0000, 0xbb80, 0x0000, 0x0000,
36 0x0000, 0x2000, 0x0000, 0x0000,
37 0x0000, 0x0000, 0x0000, 0x0000,
38 0x0000, 0x0000, 0x0000, 0x0000,
39 0x0000, 0x0000, 0x0000, 0x0000,
40 0x0000, 0x0000, 0x0000, 0x0000,
41 0x0000, 0x0000, 0x0000, 0x0000,
42 0x0000, 0x0000, 0x0000, 0x0000,
43 0x0000, 0x0808, 0x0000, 0x0006,
44 0x0000, 0x0000, 0x574d, 0x4c05,
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
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
87static const struct snd_kcontrol_new wm9705_mic_src_controls =
88 SOC_DAPM_ENUM("Route", wm9705_enum_mic);
89
90
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
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
140
141
142
143
144
145static const struct snd_soc_dapm_route wm9705_audio_map[] = {
146
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
156 {"Mono Mixer", NULL, "HP Mixer"},
157
158
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
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
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
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
199 {"Left ADC", NULL, "ADC PGA"},
200 {"Right ADC", NULL, "ADC PGA"},
201};
202
203
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_soc_codec *codec = dai->codec;
240 int reg;
241 u16 vra;
242
243 vra = ac97_read(codec, AC97_EXTENDED_STATUS);
244 ac97_write(codec, AC97_EXTENDED_STATUS, vra | 0x1);
245
246 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
247 reg = AC97_PCM_FRONT_DAC_RATE;
248 else
249 reg = AC97_PCM_LR_ADC_RATE;
250
251 return ac97_write(codec, reg, substream->runtime->rate);
252}
253
254#define WM9705_AC97_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 | \
255 SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 | \
256 SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 | \
257 SNDRV_PCM_RATE_48000)
258
259static const struct snd_soc_dai_ops wm9705_dai_ops = {
260 .prepare = ac97_prepare,
261};
262
263static struct snd_soc_dai_driver wm9705_dai[] = {
264 {
265 .name = "wm9705-hifi",
266 .ac97_control = 1,
267 .playback = {
268 .stream_name = "HiFi Playback",
269 .channels_min = 1,
270 .channels_max = 2,
271 .rates = WM9705_AC97_RATES,
272 .formats = SND_SOC_STD_AC97_FMTS,
273 },
274 .capture = {
275 .stream_name = "HiFi Capture",
276 .channels_min = 1,
277 .channels_max = 2,
278 .rates = WM9705_AC97_RATES,
279 .formats = SND_SOC_STD_AC97_FMTS,
280 },
281 .ops = &wm9705_dai_ops,
282 },
283 {
284 .name = "wm9705-aux",
285 .playback = {
286 .stream_name = "Aux Playback",
287 .channels_min = 1,
288 .channels_max = 1,
289 .rates = WM9705_AC97_RATES,
290 .formats = SNDRV_PCM_FMTBIT_S16_LE,
291 },
292 }
293};
294
295static int wm9705_reset(struct snd_soc_codec *codec)
296{
297 if (soc_ac97_ops.reset) {
298 soc_ac97_ops.reset(codec->ac97);
299 if (ac97_read(codec, 0) == wm9705_reg[0])
300 return 0;
301 }
302
303 return -EIO;
304}
305
306#ifdef CONFIG_PM
307static int wm9705_soc_suspend(struct snd_soc_codec *codec)
308{
309 soc_ac97_ops.write(codec->ac97, AC97_POWERDOWN, 0xffff);
310
311 return 0;
312}
313
314static int wm9705_soc_resume(struct snd_soc_codec *codec)
315{
316 int i, ret;
317 u16 *cache = codec->reg_cache;
318
319 ret = wm9705_reset(codec);
320 if (ret < 0) {
321 printk(KERN_ERR "could not reset AC97 codec\n");
322 return ret;
323 }
324
325 for (i = 2; i < ARRAY_SIZE(wm9705_reg) << 1; i += 2) {
326 soc_ac97_ops.write(codec->ac97, i, cache[i>>1]);
327 }
328
329 return 0;
330}
331#else
332#define wm9705_soc_suspend NULL
333#define wm9705_soc_resume NULL
334#endif
335
336static int wm9705_soc_probe(struct snd_soc_codec *codec)
337{
338 int ret = 0;
339
340 printk(KERN_INFO "WM9705 SoC Audio Codec\n");
341
342 ret = snd_soc_new_ac97_codec(codec, &soc_ac97_ops, 0);
343 if (ret < 0) {
344 printk(KERN_ERR "wm9705: failed to register AC97 codec\n");
345 return ret;
346 }
347
348 ret = wm9705_reset(codec);
349 if (ret)
350 goto reset_err;
351
352 snd_soc_add_codec_controls(codec, wm9705_snd_ac97_controls,
353 ARRAY_SIZE(wm9705_snd_ac97_controls));
354
355 return 0;
356
357reset_err:
358 snd_soc_free_ac97_codec(codec);
359 return ret;
360}
361
362static int wm9705_soc_remove(struct snd_soc_codec *codec)
363{
364 snd_soc_free_ac97_codec(codec);
365 return 0;
366}
367
368static struct snd_soc_codec_driver soc_codec_dev_wm9705 = {
369 .probe = wm9705_soc_probe,
370 .remove = wm9705_soc_remove,
371 .suspend = wm9705_soc_suspend,
372 .resume = wm9705_soc_resume,
373 .read = ac97_read,
374 .write = ac97_write,
375 .reg_cache_size = ARRAY_SIZE(wm9705_reg),
376 .reg_word_size = sizeof(u16),
377 .reg_cache_step = 2,
378 .reg_cache_default = wm9705_reg,
379 .dapm_widgets = wm9705_dapm_widgets,
380 .num_dapm_widgets = ARRAY_SIZE(wm9705_dapm_widgets),
381 .dapm_routes = wm9705_audio_map,
382 .num_dapm_routes = ARRAY_SIZE(wm9705_audio_map),
383};
384
385static int wm9705_probe(struct platform_device *pdev)
386{
387 return snd_soc_register_codec(&pdev->dev,
388 &soc_codec_dev_wm9705, wm9705_dai, ARRAY_SIZE(wm9705_dai));
389}
390
391static int wm9705_remove(struct platform_device *pdev)
392{
393 snd_soc_unregister_codec(&pdev->dev);
394 return 0;
395}
396
397static struct platform_driver wm9705_codec_driver = {
398 .driver = {
399 .name = "wm9705-codec",
400 .owner = THIS_MODULE,
401 },
402
403 .probe = wm9705_probe,
404 .remove = wm9705_remove,
405};
406
407module_platform_driver(wm9705_codec_driver);
408
409MODULE_DESCRIPTION("ASoC WM9705 driver");
410MODULE_AUTHOR("Ian Molton");
411MODULE_LICENSE("GPL v2");
412
