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wm9712.c
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1 /*
2  * wm9712.c -- ALSA Soc WM9712 codec support
3  *
4  * Copyright 2006-12 Wolfson Microelectronics PLC.
5  * Author: Liam Girdwood <[email protected]>
6  *
7  * This program is free software; you can redistribute it and/or modify it
8  * under the terms of the GNU General Public License as published by the
9  * Free Software Foundation; either version 2 of the License, or (at your
10  * option) any later version.
11  */
12 
13 #include <linux/init.h>
14 #include <linux/slab.h>
15 #include <linux/module.h>
16 #include <linux/kernel.h>
17 #include <linux/device.h>
18 #include <sound/core.h>
19 #include <sound/pcm.h>
20 #include <sound/ac97_codec.h>
21 #include <sound/initval.h>
22 #include <sound/soc.h>
23 #include <sound/tlv.h>
24 #include "wm9712.h"
25 
26 static unsigned int ac97_read(struct snd_soc_codec *codec,
27  unsigned int reg);
28 static int ac97_write(struct snd_soc_codec *codec,
29  unsigned int reg, unsigned int val);
30 
31 /*
32  * WM9712 register cache
33  */
34 static const u16 wm9712_reg[] = {
35  0x6174, 0x8000, 0x8000, 0x8000, /* 6 */
36  0x0f0f, 0xaaa0, 0xc008, 0x6808, /* e */
37  0xe808, 0xaaa0, 0xad00, 0x8000, /* 16 */
38  0xe808, 0x3000, 0x8000, 0x0000, /* 1e */
39  0x0000, 0x0000, 0x0000, 0x000f, /* 26 */
40  0x0405, 0x0410, 0xbb80, 0xbb80, /* 2e */
41  0x0000, 0xbb80, 0x0000, 0x0000, /* 36 */
42  0x0000, 0x2000, 0x0000, 0x0000, /* 3e */
43  0x0000, 0x0000, 0x0000, 0x0000, /* 46 */
44  0x0000, 0x0000, 0xf83e, 0xffff, /* 4e */
45  0x0000, 0x0000, 0x0000, 0xf83e, /* 56 */
46  0x0008, 0x0000, 0x0000, 0x0000, /* 5e */
47  0xb032, 0x3e00, 0x0000, 0x0000, /* 66 */
48  0x0000, 0x0000, 0x0000, 0x0000, /* 6e */
49  0x0000, 0x0000, 0x0000, 0x0006, /* 76 */
50  0x0001, 0x0000, 0x574d, 0x4c12, /* 7e */
51  0x0000, 0x0000 /* virtual hp mixers */
52 };
53 
54 /* virtual HP mixers regs */
55 #define HPL_MIXER 0x80
56 #define HPR_MIXER 0x82
57 
58 static const char *wm9712_alc_select[] = {"None", "Left", "Right", "Stereo"};
59 static const char *wm9712_alc_mux[] = {"Stereo", "Left", "Right", "None"};
60 static const char *wm9712_out3_src[] = {"Left", "VREF", "Left + Right",
61  "Mono"};
62 static const char *wm9712_spk_src[] = {"Speaker Mix", "Headphone Mix"};
63 static const char *wm9712_rec_adc[] = {"Stereo", "Left", "Right", "Mute"};
64 static const char *wm9712_base[] = {"Linear Control", "Adaptive Boost"};
65 static const char *wm9712_rec_gain[] = {"+1.5dB Steps", "+0.75dB Steps"};
66 static const char *wm9712_mic[] = {"Mic 1", "Differential", "Mic 2",
67  "Stereo"};
68 static const char *wm9712_rec_sel[] = {"Mic", "NC", "NC", "Speaker Mixer",
69  "Line", "Headphone Mixer", "Phone Mixer", "Phone"};
70 static const char *wm9712_ng_type[] = {"Constant Gain", "Mute"};
71 static const char *wm9712_diff_sel[] = {"Mic", "Line"};
72 
73 static const DECLARE_TLV_DB_SCALE(main_tlv, -3450, 150, 0);
74 static const DECLARE_TLV_DB_SCALE(boost_tlv, 0, 2000, 0);
75 
76 static const struct soc_enum wm9712_enum[] = {
77 SOC_ENUM_SINGLE(AC97_PCI_SVID, 14, 4, wm9712_alc_select),
78 SOC_ENUM_SINGLE(AC97_VIDEO, 12, 4, wm9712_alc_mux),
79 SOC_ENUM_SINGLE(AC97_AUX, 9, 4, wm9712_out3_src),
80 SOC_ENUM_SINGLE(AC97_AUX, 8, 2, wm9712_spk_src),
81 SOC_ENUM_SINGLE(AC97_REC_SEL, 12, 4, wm9712_rec_adc),
82 SOC_ENUM_SINGLE(AC97_MASTER_TONE, 15, 2, wm9712_base),
83 SOC_ENUM_DOUBLE(AC97_REC_GAIN, 14, 6, 2, wm9712_rec_gain),
84 SOC_ENUM_SINGLE(AC97_MIC, 5, 4, wm9712_mic),
85 SOC_ENUM_SINGLE(AC97_REC_SEL, 8, 8, wm9712_rec_sel),
86 SOC_ENUM_SINGLE(AC97_REC_SEL, 0, 8, wm9712_rec_sel),
87 SOC_ENUM_SINGLE(AC97_PCI_SVID, 5, 2, wm9712_ng_type),
88 SOC_ENUM_SINGLE(0x5c, 8, 2, wm9712_diff_sel),
89 };
90 
91 static const struct snd_kcontrol_new wm9712_snd_ac97_controls[] = {
92 SOC_DOUBLE("Speaker Playback Volume", AC97_MASTER, 8, 0, 31, 1),
93 SOC_SINGLE("Speaker Playback Switch", AC97_MASTER, 15, 1, 1),
94 SOC_DOUBLE("Headphone Playback Volume", AC97_HEADPHONE, 8, 0, 31, 1),
95 SOC_SINGLE("Headphone Playback Switch", AC97_HEADPHONE, 15, 1, 1),
96 SOC_DOUBLE("PCM Playback Volume", AC97_PCM, 8, 0, 31, 1),
97 
98 SOC_SINGLE("Speaker Playback ZC Switch", AC97_MASTER, 7, 1, 0),
99 SOC_SINGLE("Speaker Playback Invert Switch", AC97_MASTER, 6, 1, 0),
100 SOC_SINGLE("Headphone Playback ZC Switch", AC97_HEADPHONE, 7, 1, 0),
101 SOC_SINGLE("Mono Playback ZC Switch", AC97_MASTER_MONO, 7, 1, 0),
102 SOC_SINGLE("Mono Playback Volume", AC97_MASTER_MONO, 0, 31, 1),
103 SOC_SINGLE("Mono Playback Switch", AC97_MASTER_MONO, 15, 1, 1),
104 
105 SOC_SINGLE("ALC Target Volume", AC97_CODEC_CLASS_REV, 12, 15, 0),
106 SOC_SINGLE("ALC Hold Time", AC97_CODEC_CLASS_REV, 8, 15, 0),
107 SOC_SINGLE("ALC Decay Time", AC97_CODEC_CLASS_REV, 4, 15, 0),
108 SOC_SINGLE("ALC Attack Time", AC97_CODEC_CLASS_REV, 0, 15, 0),
109 SOC_ENUM("ALC Function", wm9712_enum[0]),
110 SOC_SINGLE("ALC Max Volume", AC97_PCI_SVID, 11, 7, 0),
111 SOC_SINGLE("ALC ZC Timeout", AC97_PCI_SVID, 9, 3, 1),
112 SOC_SINGLE("ALC ZC Switch", AC97_PCI_SVID, 8, 1, 0),
113 SOC_SINGLE("ALC NG Switch", AC97_PCI_SVID, 7, 1, 0),
114 SOC_ENUM("ALC NG Type", wm9712_enum[10]),
115 SOC_SINGLE("ALC NG Threshold", AC97_PCI_SVID, 0, 31, 1),
116 
117 SOC_SINGLE("Mic Headphone Volume", AC97_VIDEO, 12, 7, 1),
118 SOC_SINGLE("ALC Headphone Volume", AC97_VIDEO, 7, 7, 1),
119 
120 SOC_SINGLE("Out3 Switch", AC97_AUX, 15, 1, 1),
121 SOC_SINGLE("Out3 ZC Switch", AC97_AUX, 7, 1, 1),
122 SOC_SINGLE("Out3 Volume", AC97_AUX, 0, 31, 1),
123 
124 SOC_SINGLE("PCBeep Bypass Headphone Volume", AC97_PC_BEEP, 12, 7, 1),
125 SOC_SINGLE("PCBeep Bypass Speaker Volume", AC97_PC_BEEP, 8, 7, 1),
126 SOC_SINGLE("PCBeep Bypass Phone Volume", AC97_PC_BEEP, 4, 7, 1),
127 
128 SOC_SINGLE("Aux Playback Headphone Volume", AC97_CD, 12, 7, 1),
129 SOC_SINGLE("Aux Playback Speaker Volume", AC97_CD, 8, 7, 1),
130 SOC_SINGLE("Aux Playback Phone Volume", AC97_CD, 4, 7, 1),
131 
132 SOC_SINGLE("Phone Volume", AC97_PHONE, 0, 15, 1),
133 SOC_DOUBLE("Line Capture Volume", AC97_LINE, 8, 0, 31, 1),
134 
135 SOC_SINGLE_TLV("Capture Boost Switch", AC97_REC_SEL, 14, 1, 0, boost_tlv),
136 SOC_SINGLE_TLV("Capture to Phone Boost Switch", AC97_REC_SEL, 11, 1, 1,
137  boost_tlv),
138 
139 SOC_SINGLE("3D Upper Cut-off Switch", AC97_3D_CONTROL, 5, 1, 1),
140 SOC_SINGLE("3D Lower Cut-off Switch", AC97_3D_CONTROL, 4, 1, 1),
141 SOC_SINGLE("3D Playback Volume", AC97_3D_CONTROL, 0, 15, 0),
142 
143 SOC_ENUM("Bass Control", wm9712_enum[5]),
144 SOC_SINGLE("Bass Cut-off Switch", AC97_MASTER_TONE, 12, 1, 1),
145 SOC_SINGLE("Tone Cut-off Switch", AC97_MASTER_TONE, 4, 1, 1),
146 SOC_SINGLE("Playback Attenuate (-6dB) Switch", AC97_MASTER_TONE, 6, 1, 0),
147 SOC_SINGLE("Bass Volume", AC97_MASTER_TONE, 8, 15, 1),
148 SOC_SINGLE("Treble Volume", AC97_MASTER_TONE, 0, 15, 1),
149 
150 SOC_SINGLE("Capture Switch", AC97_REC_GAIN, 15, 1, 1),
151 SOC_ENUM("Capture Volume Steps", wm9712_enum[6]),
152 SOC_DOUBLE("Capture Volume", AC97_REC_GAIN, 8, 0, 63, 0),
153 SOC_SINGLE("Capture ZC Switch", AC97_REC_GAIN, 7, 1, 0),
154 
155 SOC_SINGLE_TLV("Mic 1 Volume", AC97_MIC, 8, 31, 1, main_tlv),
156 SOC_SINGLE_TLV("Mic 2 Volume", AC97_MIC, 0, 31, 1, main_tlv),
157 SOC_SINGLE_TLV("Mic Boost Volume", AC97_MIC, 7, 1, 0, boost_tlv),
158 };
159 
160 /* We have to create a fake left and right HP mixers because
161  * the codec only has a single control that is shared by both channels.
162  * This makes it impossible to determine the audio path.
163  */
164 static int mixer_event(struct snd_soc_dapm_widget *w,
165  struct snd_kcontrol *k, int event)
166 {
167  u16 l, r, beep, line, phone, mic, pcm, aux;
168 
169  l = ac97_read(w->codec, HPL_MIXER);
170  r = ac97_read(w->codec, HPR_MIXER);
171  beep = ac97_read(w->codec, AC97_PC_BEEP);
172  mic = ac97_read(w->codec, AC97_VIDEO);
173  phone = ac97_read(w->codec, AC97_PHONE);
174  line = ac97_read(w->codec, AC97_LINE);
175  pcm = ac97_read(w->codec, AC97_PCM);
176  aux = ac97_read(w->codec, AC97_CD);
177 
178  if (l & 0x1 || r & 0x1)
179  ac97_write(w->codec, AC97_VIDEO, mic & 0x7fff);
180  else
181  ac97_write(w->codec, AC97_VIDEO, mic | 0x8000);
182 
183  if (l & 0x2 || r & 0x2)
184  ac97_write(w->codec, AC97_PCM, pcm & 0x7fff);
185  else
186  ac97_write(w->codec, AC97_PCM, pcm | 0x8000);
187 
188  if (l & 0x4 || r & 0x4)
189  ac97_write(w->codec, AC97_LINE, line & 0x7fff);
190  else
191  ac97_write(w->codec, AC97_LINE, line | 0x8000);
192 
193  if (l & 0x8 || r & 0x8)
194  ac97_write(w->codec, AC97_PHONE, phone & 0x7fff);
195  else
196  ac97_write(w->codec, AC97_PHONE, phone | 0x8000);
197 
198  if (l & 0x10 || r & 0x10)
199  ac97_write(w->codec, AC97_CD, aux & 0x7fff);
200  else
201  ac97_write(w->codec, AC97_CD, aux | 0x8000);
202 
203  if (l & 0x20 || r & 0x20)
204  ac97_write(w->codec, AC97_PC_BEEP, beep & 0x7fff);
205  else
206  ac97_write(w->codec, AC97_PC_BEEP, beep | 0x8000);
207 
208  return 0;
209 }
210 
211 /* Left Headphone Mixers */
212 static const struct snd_kcontrol_new wm9712_hpl_mixer_controls[] = {
213  SOC_DAPM_SINGLE("PCBeep Bypass Switch", HPL_MIXER, 5, 1, 0),
214  SOC_DAPM_SINGLE("Aux Playback Switch", HPL_MIXER, 4, 1, 0),
215  SOC_DAPM_SINGLE("Phone Bypass Switch", HPL_MIXER, 3, 1, 0),
216  SOC_DAPM_SINGLE("Line Bypass Switch", HPL_MIXER, 2, 1, 0),
217  SOC_DAPM_SINGLE("PCM Playback Switch", HPL_MIXER, 1, 1, 0),
218  SOC_DAPM_SINGLE("Mic Sidetone Switch", HPL_MIXER, 0, 1, 0),
219 };
220 
221 /* Right Headphone Mixers */
222 static const struct snd_kcontrol_new wm9712_hpr_mixer_controls[] = {
223  SOC_DAPM_SINGLE("PCBeep Bypass Switch", HPR_MIXER, 5, 1, 0),
224  SOC_DAPM_SINGLE("Aux Playback Switch", HPR_MIXER, 4, 1, 0),
225  SOC_DAPM_SINGLE("Phone Bypass Switch", HPR_MIXER, 3, 1, 0),
226  SOC_DAPM_SINGLE("Line Bypass Switch", HPR_MIXER, 2, 1, 0),
227  SOC_DAPM_SINGLE("PCM Playback Switch", HPR_MIXER, 1, 1, 0),
228  SOC_DAPM_SINGLE("Mic Sidetone Switch", HPR_MIXER, 0, 1, 0),
229 };
230 
231 /* Speaker Mixer */
232 static const struct snd_kcontrol_new wm9712_speaker_mixer_controls[] = {
233  SOC_DAPM_SINGLE("PCBeep Bypass Switch", AC97_PC_BEEP, 11, 1, 1),
234  SOC_DAPM_SINGLE("Aux Playback Switch", AC97_CD, 11, 1, 1),
235  SOC_DAPM_SINGLE("Phone Bypass Switch", AC97_PHONE, 14, 1, 1),
236  SOC_DAPM_SINGLE("Line Bypass Switch", AC97_LINE, 14, 1, 1),
237  SOC_DAPM_SINGLE("PCM Playback Switch", AC97_PCM, 14, 1, 1),
238 };
239 
240 /* Phone Mixer */
241 static const struct snd_kcontrol_new wm9712_phone_mixer_controls[] = {
242  SOC_DAPM_SINGLE("PCBeep Bypass Switch", AC97_PC_BEEP, 7, 1, 1),
243  SOC_DAPM_SINGLE("Aux Playback Switch", AC97_CD, 7, 1, 1),
244  SOC_DAPM_SINGLE("Line Bypass Switch", AC97_LINE, 13, 1, 1),
245  SOC_DAPM_SINGLE("PCM Playback Switch", AC97_PCM, 13, 1, 1),
246  SOC_DAPM_SINGLE("Mic 1 Sidetone Switch", AC97_MIC, 14, 1, 1),
247  SOC_DAPM_SINGLE("Mic 2 Sidetone Switch", AC97_MIC, 13, 1, 1),
248 };
249 
250 /* ALC headphone mux */
251 static const struct snd_kcontrol_new wm9712_alc_mux_controls =
252 SOC_DAPM_ENUM("Route", wm9712_enum[1]);
253 
254 /* out 3 mux */
255 static const struct snd_kcontrol_new wm9712_out3_mux_controls =
256 SOC_DAPM_ENUM("Route", wm9712_enum[2]);
257 
258 /* spk mux */
259 static const struct snd_kcontrol_new wm9712_spk_mux_controls =
260 SOC_DAPM_ENUM("Route", wm9712_enum[3]);
261 
262 /* Capture to Phone mux */
263 static const struct snd_kcontrol_new wm9712_capture_phone_mux_controls =
264 SOC_DAPM_ENUM("Route", wm9712_enum[4]);
265 
266 /* Capture left select */
267 static const struct snd_kcontrol_new wm9712_capture_selectl_controls =
268 SOC_DAPM_ENUM("Route", wm9712_enum[8]);
269 
270 /* Capture right select */
271 static const struct snd_kcontrol_new wm9712_capture_selectr_controls =
272 SOC_DAPM_ENUM("Route", wm9712_enum[9]);
273 
274 /* Mic select */
275 static const struct snd_kcontrol_new wm9712_mic_src_controls =
276 SOC_DAPM_ENUM("Mic Source Select", wm9712_enum[7]);
277 
278 /* diff select */
279 static const struct snd_kcontrol_new wm9712_diff_sel_controls =
280 SOC_DAPM_ENUM("Route", wm9712_enum[11]);
281 
282 static const struct snd_soc_dapm_widget wm9712_dapm_widgets[] = {
283 SND_SOC_DAPM_MUX("ALC Sidetone Mux", SND_SOC_NOPM, 0, 0,
284  &wm9712_alc_mux_controls),
285 SND_SOC_DAPM_MUX("Out3 Mux", SND_SOC_NOPM, 0, 0,
286  &wm9712_out3_mux_controls),
287 SND_SOC_DAPM_MUX("Speaker Mux", SND_SOC_NOPM, 0, 0,
288  &wm9712_spk_mux_controls),
289 SND_SOC_DAPM_MUX("Capture Phone Mux", SND_SOC_NOPM, 0, 0,
290  &wm9712_capture_phone_mux_controls),
291 SND_SOC_DAPM_MUX("Left Capture Select", SND_SOC_NOPM, 0, 0,
292  &wm9712_capture_selectl_controls),
293 SND_SOC_DAPM_MUX("Right Capture Select", SND_SOC_NOPM, 0, 0,
294  &wm9712_capture_selectr_controls),
295 SND_SOC_DAPM_MUX("Left Mic Select Source", SND_SOC_NOPM, 0, 0,
296  &wm9712_mic_src_controls),
297 SND_SOC_DAPM_MUX("Right Mic Select Source", SND_SOC_NOPM, 0, 0,
298  &wm9712_mic_src_controls),
299 SND_SOC_DAPM_MUX("Differential Source", SND_SOC_NOPM, 0, 0,
300  &wm9712_diff_sel_controls),
301 SND_SOC_DAPM_MIXER("AC97 Mixer", SND_SOC_NOPM, 0, 0, NULL, 0),
302 SND_SOC_DAPM_MIXER_E("Left HP Mixer", AC97_INT_PAGING, 9, 1,
303  &wm9712_hpl_mixer_controls[0], ARRAY_SIZE(wm9712_hpl_mixer_controls),
304  mixer_event, SND_SOC_DAPM_POST_REG),
305 SND_SOC_DAPM_MIXER_E("Right HP Mixer", AC97_INT_PAGING, 8, 1,
306  &wm9712_hpr_mixer_controls[0], ARRAY_SIZE(wm9712_hpr_mixer_controls),
307  mixer_event, SND_SOC_DAPM_POST_REG),
308 SND_SOC_DAPM_MIXER("Phone Mixer", AC97_INT_PAGING, 6, 1,
309  &wm9712_phone_mixer_controls[0], ARRAY_SIZE(wm9712_phone_mixer_controls)),
310 SND_SOC_DAPM_MIXER("Speaker Mixer", AC97_INT_PAGING, 7, 1,
311  &wm9712_speaker_mixer_controls[0],
312  ARRAY_SIZE(wm9712_speaker_mixer_controls)),
313 SND_SOC_DAPM_MIXER("Mono Mixer", SND_SOC_NOPM, 0, 0, NULL, 0),
314 SND_SOC_DAPM_DAC("Left DAC", "Left HiFi Playback", AC97_INT_PAGING, 14, 1),
315 SND_SOC_DAPM_DAC("Right DAC", "Right HiFi Playback", AC97_INT_PAGING, 13, 1),
316 SND_SOC_DAPM_DAC("Aux DAC", "Aux Playback", SND_SOC_NOPM, 0, 0),
317 SND_SOC_DAPM_ADC("Left ADC", "Left HiFi Capture", AC97_INT_PAGING, 12, 1),
318 SND_SOC_DAPM_ADC("Right ADC", "Right HiFi Capture", AC97_INT_PAGING, 11, 1),
319 SND_SOC_DAPM_PGA("Headphone PGA", AC97_INT_PAGING, 4, 1, NULL, 0),
320 SND_SOC_DAPM_PGA("Speaker PGA", AC97_INT_PAGING, 3, 1, NULL, 0),
321 SND_SOC_DAPM_PGA("Out 3 PGA", AC97_INT_PAGING, 5, 1, NULL, 0),
322 SND_SOC_DAPM_PGA("Line PGA", AC97_INT_PAGING, 2, 1, NULL, 0),
323 SND_SOC_DAPM_PGA("Phone PGA", AC97_INT_PAGING, 1, 1, NULL, 0),
324 SND_SOC_DAPM_PGA("Mic PGA", AC97_INT_PAGING, 0, 1, NULL, 0),
325 SND_SOC_DAPM_PGA("Differential Mic", SND_SOC_NOPM, 0, 0, NULL, 0),
326 SND_SOC_DAPM_MICBIAS("Mic Bias", AC97_INT_PAGING, 10, 1),
327 SND_SOC_DAPM_OUTPUT("MONOOUT"),
328 SND_SOC_DAPM_OUTPUT("HPOUTL"),
329 SND_SOC_DAPM_OUTPUT("HPOUTR"),
330 SND_SOC_DAPM_OUTPUT("LOUT2"),
331 SND_SOC_DAPM_OUTPUT("ROUT2"),
332 SND_SOC_DAPM_OUTPUT("OUT3"),
333 SND_SOC_DAPM_INPUT("LINEINL"),
334 SND_SOC_DAPM_INPUT("LINEINR"),
335 SND_SOC_DAPM_INPUT("PHONE"),
336 SND_SOC_DAPM_INPUT("PCBEEP"),
337 SND_SOC_DAPM_INPUT("MIC1"),
338 SND_SOC_DAPM_INPUT("MIC2"),
339 };
340 
341 static const struct snd_soc_dapm_route wm9712_audio_map[] = {
342  /* virtual mixer - mixes left & right channels for spk and mono */
343  {"AC97 Mixer", NULL, "Left DAC"},
344  {"AC97 Mixer", NULL, "Right DAC"},
345 
346  /* Left HP mixer */
347  {"Left HP Mixer", "PCBeep Bypass Switch", "PCBEEP"},
348  {"Left HP Mixer", "Aux Playback Switch", "Aux DAC"},
349  {"Left HP Mixer", "Phone Bypass Switch", "Phone PGA"},
350  {"Left HP Mixer", "Line Bypass Switch", "Line PGA"},
351  {"Left HP Mixer", "PCM Playback Switch", "Left DAC"},
352  {"Left HP Mixer", "Mic Sidetone Switch", "Mic PGA"},
353  {"Left HP Mixer", NULL, "ALC Sidetone Mux"},
354 
355  /* Right HP mixer */
356  {"Right HP Mixer", "PCBeep Bypass Switch", "PCBEEP"},
357  {"Right HP Mixer", "Aux Playback Switch", "Aux DAC"},
358  {"Right HP Mixer", "Phone Bypass Switch", "Phone PGA"},
359  {"Right HP Mixer", "Line Bypass Switch", "Line PGA"},
360  {"Right HP Mixer", "PCM Playback Switch", "Right DAC"},
361  {"Right HP Mixer", "Mic Sidetone Switch", "Mic PGA"},
362  {"Right HP Mixer", NULL, "ALC Sidetone Mux"},
363 
364  /* speaker mixer */
365  {"Speaker Mixer", "PCBeep Bypass Switch", "PCBEEP"},
366  {"Speaker Mixer", "Line Bypass Switch", "Line PGA"},
367  {"Speaker Mixer", "PCM Playback Switch", "AC97 Mixer"},
368  {"Speaker Mixer", "Phone Bypass Switch", "Phone PGA"},
369  {"Speaker Mixer", "Aux Playback Switch", "Aux DAC"},
370 
371  /* Phone mixer */
372  {"Phone Mixer", "PCBeep Bypass Switch", "PCBEEP"},
373  {"Phone Mixer", "Line Bypass Switch", "Line PGA"},
374  {"Phone Mixer", "Aux Playback Switch", "Aux DAC"},
375  {"Phone Mixer", "PCM Playback Switch", "AC97 Mixer"},
376  {"Phone Mixer", "Mic 1 Sidetone Switch", "Mic PGA"},
377  {"Phone Mixer", "Mic 2 Sidetone Switch", "Mic PGA"},
378 
379  /* inputs */
380  {"Line PGA", NULL, "LINEINL"},
381  {"Line PGA", NULL, "LINEINR"},
382  {"Phone PGA", NULL, "PHONE"},
383  {"Mic PGA", NULL, "MIC1"},
384  {"Mic PGA", NULL, "MIC2"},
385 
386  /* microphones */
387  {"Differential Mic", NULL, "MIC1"},
388  {"Differential Mic", NULL, "MIC2"},
389  {"Left Mic Select Source", "Mic 1", "MIC1"},
390  {"Left Mic Select Source", "Mic 2", "MIC2"},
391  {"Left Mic Select Source", "Stereo", "MIC1"},
392  {"Left Mic Select Source", "Differential", "Differential Mic"},
393  {"Right Mic Select Source", "Mic 1", "MIC1"},
394  {"Right Mic Select Source", "Mic 2", "MIC2"},
395  {"Right Mic Select Source", "Stereo", "MIC2"},
396  {"Right Mic Select Source", "Differential", "Differential Mic"},
397 
398  /* left capture selector */
399  {"Left Capture Select", "Mic", "MIC1"},
400  {"Left Capture Select", "Speaker Mixer", "Speaker Mixer"},
401  {"Left Capture Select", "Line", "LINEINL"},
402  {"Left Capture Select", "Headphone Mixer", "Left HP Mixer"},
403  {"Left Capture Select", "Phone Mixer", "Phone Mixer"},
404  {"Left Capture Select", "Phone", "PHONE"},
405 
406  /* right capture selector */
407  {"Right Capture Select", "Mic", "MIC2"},
408  {"Right Capture Select", "Speaker Mixer", "Speaker Mixer"},
409  {"Right Capture Select", "Line", "LINEINR"},
410  {"Right Capture Select", "Headphone Mixer", "Right HP Mixer"},
411  {"Right Capture Select", "Phone Mixer", "Phone Mixer"},
412  {"Right Capture Select", "Phone", "PHONE"},
413 
414  /* ALC Sidetone */
415  {"ALC Sidetone Mux", "Stereo", "Left Capture Select"},
416  {"ALC Sidetone Mux", "Stereo", "Right Capture Select"},
417  {"ALC Sidetone Mux", "Left", "Left Capture Select"},
418  {"ALC Sidetone Mux", "Right", "Right Capture Select"},
419 
420  /* ADC's */
421  {"Left ADC", NULL, "Left Capture Select"},
422  {"Right ADC", NULL, "Right Capture Select"},
423 
424  /* outputs */
425  {"MONOOUT", NULL, "Phone Mixer"},
426  {"HPOUTL", NULL, "Headphone PGA"},
427  {"Headphone PGA", NULL, "Left HP Mixer"},
428  {"HPOUTR", NULL, "Headphone PGA"},
429  {"Headphone PGA", NULL, "Right HP Mixer"},
430 
431  /* mono mixer */
432  {"Mono Mixer", NULL, "Left HP Mixer"},
433  {"Mono Mixer", NULL, "Right HP Mixer"},
434 
435  /* Out3 Mux */
436  {"Out3 Mux", "Left", "Left HP Mixer"},
437  {"Out3 Mux", "Mono", "Phone Mixer"},
438  {"Out3 Mux", "Left + Right", "Mono Mixer"},
439  {"Out 3 PGA", NULL, "Out3 Mux"},
440  {"OUT3", NULL, "Out 3 PGA"},
441 
442  /* speaker Mux */
443  {"Speaker Mux", "Speaker Mix", "Speaker Mixer"},
444  {"Speaker Mux", "Headphone Mix", "Mono Mixer"},
445  {"Speaker PGA", NULL, "Speaker Mux"},
446  {"LOUT2", NULL, "Speaker PGA"},
447  {"ROUT2", NULL, "Speaker PGA"},
448 };
449 
450 static unsigned int ac97_read(struct snd_soc_codec *codec,
451  unsigned int reg)
452 {
453  u16 *cache = codec->reg_cache;
454 
455  if (reg == AC97_RESET || reg == AC97_GPIO_STATUS ||
456  reg == AC97_VENDOR_ID1 || reg == AC97_VENDOR_ID2 ||
457  reg == AC97_REC_GAIN)
458  return soc_ac97_ops.read(codec->ac97, reg);
459  else {
460  reg = reg >> 1;
461 
462  if (reg >= (ARRAY_SIZE(wm9712_reg)))
463  return -EIO;
464 
465  return cache[reg];
466  }
467 }
468 
469 static int ac97_write(struct snd_soc_codec *codec, unsigned int reg,
470  unsigned int val)
471 {
472  u16 *cache = codec->reg_cache;
473 
474  if (reg < 0x7c)
475  soc_ac97_ops.write(codec->ac97, reg, val);
476  reg = reg >> 1;
477  if (reg < (ARRAY_SIZE(wm9712_reg)))
478  cache[reg] = val;
479 
480  return 0;
481 }
482 
483 static int ac97_prepare(struct snd_pcm_substream *substream,
484  struct snd_soc_dai *dai)
485 {
486  struct snd_soc_codec *codec = dai->codec;
487  int reg;
488  u16 vra;
489  struct snd_pcm_runtime *runtime = substream->runtime;
490 
491  vra = ac97_read(codec, AC97_EXTENDED_STATUS);
492  ac97_write(codec, AC97_EXTENDED_STATUS, vra | 0x1);
493 
494  if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
495  reg = AC97_PCM_FRONT_DAC_RATE;
496  else
497  reg = AC97_PCM_LR_ADC_RATE;
498 
499  return ac97_write(codec, reg, runtime->rate);
500 }
501 
502 static int ac97_aux_prepare(struct snd_pcm_substream *substream,
503  struct snd_soc_dai *dai)
504 {
505  struct snd_soc_codec *codec = dai->codec;
506  u16 vra, xsle;
507  struct snd_pcm_runtime *runtime = substream->runtime;
508 
509  vra = ac97_read(codec, AC97_EXTENDED_STATUS);
510  ac97_write(codec, AC97_EXTENDED_STATUS, vra | 0x1);
511  xsle = ac97_read(codec, AC97_PCI_SID);
512  ac97_write(codec, AC97_PCI_SID, xsle | 0x8000);
513 
514  if (substream->stream != SNDRV_PCM_STREAM_PLAYBACK)
515  return -ENODEV;
516 
517  return ac97_write(codec, AC97_PCM_SURR_DAC_RATE, runtime->rate);
518 }
519 
520 #define WM9712_AC97_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\
521  SNDRV_PCM_RATE_22050 | SNDRV_PCM_RATE_44100 |\
522  SNDRV_PCM_RATE_48000)
523 
524 static const struct snd_soc_dai_ops wm9712_dai_ops_hifi = {
525  .prepare = ac97_prepare,
526 };
527 
528 static const struct snd_soc_dai_ops wm9712_dai_ops_aux = {
529  .prepare = ac97_aux_prepare,
530 };
531 
532 static struct snd_soc_dai_driver wm9712_dai[] = {
533 {
534  .name = "wm9712-hifi",
535  .ac97_control = 1,
536  .playback = {
537  .stream_name = "HiFi Playback",
538  .channels_min = 1,
539  .channels_max = 2,
540  .rates = WM9712_AC97_RATES,
541  .formats = SND_SOC_STD_AC97_FMTS,},
542  .capture = {
543  .stream_name = "HiFi Capture",
544  .channels_min = 1,
545  .channels_max = 2,
546  .rates = WM9712_AC97_RATES,
547  .formats = SND_SOC_STD_AC97_FMTS,},
548  .ops = &wm9712_dai_ops_hifi,
549 },
550 {
551  .name = "wm9712-aux",
552  .playback = {
553  .stream_name = "Aux Playback",
554  .channels_min = 1,
555  .channels_max = 1,
556  .rates = WM9712_AC97_RATES,
557  .formats = SND_SOC_STD_AC97_FMTS,},
558  .ops = &wm9712_dai_ops_aux,
559 }
560 };
561 
562 static int wm9712_set_bias_level(struct snd_soc_codec *codec,
563  enum snd_soc_bias_level level)
564 {
565  switch (level) {
566  case SND_SOC_BIAS_ON:
567  case SND_SOC_BIAS_PREPARE:
568  break;
569  case SND_SOC_BIAS_STANDBY:
570  ac97_write(codec, AC97_POWERDOWN, 0x0000);
571  break;
572  case SND_SOC_BIAS_OFF:
573  /* disable everything including AC link */
574  ac97_write(codec, AC97_EXTENDED_MSTATUS, 0xffff);
575  ac97_write(codec, AC97_POWERDOWN, 0xffff);
576  break;
577  }
578  codec->dapm.bias_level = level;
579  return 0;
580 }
581 
582 static int wm9712_reset(struct snd_soc_codec *codec, int try_warm)
583 {
584  if (try_warm && soc_ac97_ops.warm_reset) {
585  soc_ac97_ops.warm_reset(codec->ac97);
586  if (ac97_read(codec, 0) == wm9712_reg[0])
587  return 1;
588  }
589 
590  soc_ac97_ops.reset(codec->ac97);
591  if (soc_ac97_ops.warm_reset)
592  soc_ac97_ops.warm_reset(codec->ac97);
593  if (ac97_read(codec, 0) != wm9712_reg[0])
594  goto err;
595  return 0;
596 
597 err:
598  printk(KERN_ERR "WM9712 AC97 reset failed\n");
599  return -EIO;
600 }
601 
602 static int wm9712_soc_suspend(struct snd_soc_codec *codec)
603 {
604  wm9712_set_bias_level(codec, SND_SOC_BIAS_OFF);
605  return 0;
606 }
607 
608 static int wm9712_soc_resume(struct snd_soc_codec *codec)
609 {
610  int i, ret;
611  u16 *cache = codec->reg_cache;
612 
613  ret = wm9712_reset(codec, 1);
614  if (ret < 0) {
615  printk(KERN_ERR "could not reset AC97 codec\n");
616  return ret;
617  }
618 
619  wm9712_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
620 
621  if (ret == 0) {
622  /* Sync reg_cache with the hardware after cold reset */
623  for (i = 2; i < ARRAY_SIZE(wm9712_reg) << 1; i += 2) {
624  if (i == AC97_INT_PAGING || i == AC97_POWERDOWN ||
625  (i > 0x58 && i != 0x5c))
626  continue;
627  soc_ac97_ops.write(codec->ac97, i, cache[i>>1]);
628  }
629  }
630 
631  return ret;
632 }
633 
634 static int wm9712_soc_probe(struct snd_soc_codec *codec)
635 {
636  int ret = 0;
637 
638  ret = snd_soc_new_ac97_codec(codec, &soc_ac97_ops, 0);
639  if (ret < 0) {
640  printk(KERN_ERR "wm9712: failed to register AC97 codec\n");
641  return ret;
642  }
643 
644  ret = wm9712_reset(codec, 0);
645  if (ret < 0) {
646  printk(KERN_ERR "Failed to reset WM9712: AC97 link error\n");
647  goto reset_err;
648  }
649 
650  /* set alc mux to none */
651  ac97_write(codec, AC97_VIDEO, ac97_read(codec, AC97_VIDEO) | 0x3000);
652 
653  wm9712_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
654  snd_soc_add_codec_controls(codec, wm9712_snd_ac97_controls,
655  ARRAY_SIZE(wm9712_snd_ac97_controls));
656 
657  return 0;
658 
659 reset_err:
660  snd_soc_free_ac97_codec(codec);
661  return ret;
662 }
663 
664 static int wm9712_soc_remove(struct snd_soc_codec *codec)
665 {
666  snd_soc_free_ac97_codec(codec);
667  return 0;
668 }
669 
670 static struct snd_soc_codec_driver soc_codec_dev_wm9712 = {
671  .probe = wm9712_soc_probe,
672  .remove = wm9712_soc_remove,
673  .suspend = wm9712_soc_suspend,
674  .resume = wm9712_soc_resume,
675  .read = ac97_read,
676  .write = ac97_write,
677  .set_bias_level = wm9712_set_bias_level,
678  .reg_cache_size = ARRAY_SIZE(wm9712_reg),
679  .reg_word_size = sizeof(u16),
680  .reg_cache_step = 2,
681  .reg_cache_default = wm9712_reg,
682  .dapm_widgets = wm9712_dapm_widgets,
683  .num_dapm_widgets = ARRAY_SIZE(wm9712_dapm_widgets),
684  .dapm_routes = wm9712_audio_map,
685  .num_dapm_routes = ARRAY_SIZE(wm9712_audio_map),
686 };
687 
688 static __devinit int wm9712_probe(struct platform_device *pdev)
689 {
690  return snd_soc_register_codec(&pdev->dev,
691  &soc_codec_dev_wm9712, wm9712_dai, ARRAY_SIZE(wm9712_dai));
692 }
693 
694 static int __devexit wm9712_remove(struct platform_device *pdev)
695 {
696  snd_soc_unregister_codec(&pdev->dev);
697  return 0;
698 }
699 
700 static struct platform_driver wm9712_codec_driver = {
701  .driver = {
702  .name = "wm9712-codec",
703  .owner = THIS_MODULE,
704  },
705 
706  .probe = wm9712_probe,
707  .remove = __devexit_p(wm9712_remove),
708 };
709 
710 module_platform_driver(wm9712_codec_driver);
711 
712 MODULE_DESCRIPTION("ASoC WM9711/WM9712 driver");
713 MODULE_AUTHOR("Liam Girdwood");
714 MODULE_LICENSE("GPL");
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