aboutsummaryrefslogtreecommitdiffstats
path: root/sound/soc/codecs/wm9705.c
diff options
context:
space:
mode:
Diffstat (limited to 'sound/soc/codecs/wm9705.c')
-rw-r--r--sound/soc/codecs/wm9705.c415
1 files changed, 415 insertions, 0 deletions
diff --git a/sound/soc/codecs/wm9705.c b/sound/soc/codecs/wm9705.c
new file mode 100644
index 000000000000..3265817c5c26
--- /dev/null
+++ b/sound/soc/codecs/wm9705.c
@@ -0,0 +1,415 @@
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/module.h>
14#include <linux/kernel.h>
15#include <linux/device.h>
16#include <sound/core.h>
17#include <sound/pcm.h>
18#include <sound/ac97_codec.h>
19#include <sound/initval.h>
20#include <sound/soc.h>
21#include <sound/soc-dapm.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 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
203static int wm9705_add_widgets(struct snd_soc_codec *codec)
204{
205 snd_soc_dapm_new_controls(codec, wm9705_dapm_widgets,
206 ARRAY_SIZE(wm9705_dapm_widgets));
207 snd_soc_dapm_add_routes(codec, audio_map, ARRAY_SIZE(audio_map));
208 snd_soc_dapm_new_widgets(codec);
209
210 return 0;
211}
212
213/* We use a register cache to enhance read performance. */
214static unsigned int ac97_read(struct snd_soc_codec *codec, unsigned int reg)
215{
216 u16 *cache = codec->reg_cache;
217
218 switch (reg) {
219 case AC97_RESET:
220 case AC97_VENDOR_ID1:
221 case AC97_VENDOR_ID2:
222 return soc_ac97_ops.read(codec->ac97, reg);
223 default:
224 reg = reg >> 1;
225
226 if (reg >= (ARRAY_SIZE(wm9705_reg)))
227 return -EIO;
228
229 return cache[reg];
230 }
231}
232
233static int ac97_write(struct snd_soc_codec *codec, unsigned int reg,
234 unsigned int val)
235{
236 u16 *cache = codec->reg_cache;
237
238 soc_ac97_ops.write(codec->ac97, reg, val);
239 reg = reg >> 1;
240 if (reg < (ARRAY_SIZE(wm9705_reg)))
241 cache[reg] = val;
242
243 return 0;
244}
245
246static int ac97_prepare(struct snd_pcm_substream *substream,
247 struct snd_soc_dai *dai)
248{
249 struct snd_pcm_runtime *runtime = substream->runtime;
250 struct snd_soc_pcm_runtime *rtd = substream->private_data;
251 struct snd_soc_device *socdev = rtd->socdev;
252 struct snd_soc_codec *codec = socdev->card->codec;
253 int reg;
254 u16 vra;
255
256 vra = ac97_read(codec, AC97_EXTENDED_STATUS);
257 ac97_write(codec, AC97_EXTENDED_STATUS, vra | 0x1);
258
259 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
260 reg = AC97_PCM_FRONT_DAC_RATE;
261 else
262 reg = AC97_PCM_LR_ADC_RATE;
263
264 return ac97_write(codec, reg, runtime->rate);
265}
266
267#define WM9705_AC97_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 | \
268 SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 | \
269 SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 | \
270 SNDRV_PCM_RATE_48000)
271
272static struct snd_soc_dai_ops wm9705_dai_ops = {
273 .prepare = ac97_prepare,
274};
275
276struct snd_soc_dai wm9705_dai[] = {
277 {
278 .name = "AC97 HiFi",
279 .ac97_control = 1,
280 .playback = {
281 .stream_name = "HiFi Playback",
282 .channels_min = 1,
283 .channels_max = 2,
284 .rates = WM9705_AC97_RATES,
285 .formats = SNDRV_PCM_FMTBIT_S16_LE,
286 },
287 .capture = {
288 .stream_name = "HiFi Capture",
289 .channels_min = 1,
290 .channels_max = 2,
291 .rates = WM9705_AC97_RATES,
292 .formats = SNDRV_PCM_FMTBIT_S16_LE,
293 },
294 .ops = &wm9705_dai_ops,
295 },
296 {
297 .name = "AC97 Aux",
298 .playback = {
299 .stream_name = "Aux Playback",
300 .channels_min = 1,
301 .channels_max = 1,
302 .rates = WM9705_AC97_RATES,
303 .formats = SNDRV_PCM_FMTBIT_S16_LE,
304 },
305 }
306};
307EXPORT_SYMBOL_GPL(wm9705_dai);
308
309static int wm9705_reset(struct snd_soc_codec *codec)
310{
311 if (soc_ac97_ops.reset) {
312 soc_ac97_ops.reset(codec->ac97);
313 if (ac97_read(codec, 0) == wm9705_reg[0])
314 return 0; /* Success */
315 }
316
317 return -EIO;
318}
319
320static int wm9705_soc_probe(struct platform_device *pdev)
321{
322 struct snd_soc_device *socdev = platform_get_drvdata(pdev);
323 struct snd_soc_codec *codec;
324 int ret = 0;
325
326 printk(KERN_INFO "WM9705 SoC Audio Codec\n");
327
328 socdev->card->codec = kzalloc(sizeof(struct snd_soc_codec),
329 GFP_KERNEL);
330 if (socdev->card->codec == NULL)
331 return -ENOMEM;
332 codec = socdev->card->codec;
333 mutex_init(&codec->mutex);
334
335 codec->reg_cache = kmemdup(wm9705_reg, sizeof(wm9705_reg), GFP_KERNEL);
336 if (codec->reg_cache == NULL) {
337 ret = -ENOMEM;
338 goto cache_err;
339 }
340 codec->reg_cache_size = sizeof(wm9705_reg);
341 codec->reg_cache_step = 2;
342
343 codec->name = "WM9705";
344 codec->owner = THIS_MODULE;
345 codec->dai = wm9705_dai;
346 codec->num_dai = ARRAY_SIZE(wm9705_dai);
347 codec->write = ac97_write;
348 codec->read = ac97_read;
349 INIT_LIST_HEAD(&codec->dapm_widgets);
350 INIT_LIST_HEAD(&codec->dapm_paths);
351
352 ret = snd_soc_new_ac97_codec(codec, &soc_ac97_ops, 0);
353 if (ret < 0) {
354 printk(KERN_ERR "wm9705: failed to register AC97 codec\n");
355 goto codec_err;
356 }
357
358 /* register pcms */
359 ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1);
360 if (ret < 0)
361 goto pcm_err;
362
363 ret = wm9705_reset(codec);
364 if (ret)
365 goto reset_err;
366
367 snd_soc_add_controls(codec, wm9705_snd_ac97_controls,
368 ARRAY_SIZE(wm9705_snd_ac97_controls));
369 wm9705_add_widgets(codec);
370
371 ret = snd_soc_init_card(socdev);
372 if (ret < 0) {
373 printk(KERN_ERR "wm9705: failed to register card\n");
374 goto pcm_err;
375 }
376
377 return 0;
378
379reset_err:
380 snd_soc_free_pcms(socdev);
381pcm_err:
382 snd_soc_free_ac97_codec(codec);
383codec_err:
384 kfree(codec->reg_cache);
385cache_err:
386 kfree(socdev->card->codec);
387 socdev->card->codec = NULL;
388 return ret;
389}
390
391static int wm9705_soc_remove(struct platform_device *pdev)
392{
393 struct snd_soc_device *socdev = platform_get_drvdata(pdev);
394 struct snd_soc_codec *codec = socdev->card->codec;
395
396 if (codec == NULL)
397 return 0;
398
399 snd_soc_dapm_free(socdev);
400 snd_soc_free_pcms(socdev);
401 snd_soc_free_ac97_codec(codec);
402 kfree(codec->reg_cache);
403 kfree(codec);
404 return 0;
405}
406
407struct snd_soc_codec_device soc_codec_dev_wm9705 = {
408 .probe = wm9705_soc_probe,
409 .remove = wm9705_soc_remove,
410};
411EXPORT_SYMBOL_GPL(soc_codec_dev_wm9705);
412
413MODULE_DESCRIPTION("ASoC WM9705 driver");
414MODULE_AUTHOR("Ian Molton");
415MODULE_LICENSE("GPL v2");
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-18 11:42:18 -0500