Version:  2.0.40 2.2.26 2.4.37 3.0 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9 3.10 3.11 3.12 3.13 3.14 3.15 3.16

Linux/sound/soc/codecs/wm9712.c

  1 /*
  2  * wm9712.c  --  ALSA Soc WM9712 codec support
  3  *
  4  * Copyright 2006-12 Wolfson Microelectronics PLC.
  5  * Author: Liam Girdwood <lrg@slimlogic.co.uk>
  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 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 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 = 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");
715 

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