Version:  2.0.40 2.2.26 2.4.37 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 3.17 3.18 3.19 4.0

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 struct wm9712_priv {
 27         struct snd_ac97 *ac97;
 28         unsigned int hp_mixer[2];
 29         struct mutex lock;
 30 };
 31 
 32 static unsigned int ac97_read(struct snd_soc_codec *codec,
 33         unsigned int reg);
 34 static int ac97_write(struct snd_soc_codec *codec,
 35         unsigned int reg, unsigned int val);
 36 
 37 /*
 38  * WM9712 register cache
 39  */
 40 static const u16 wm9712_reg[] = {
 41         0x6174, 0x8000, 0x8000, 0x8000, /*  6 */
 42         0x0f0f, 0xaaa0, 0xc008, 0x6808, /*  e */
 43         0xe808, 0xaaa0, 0xad00, 0x8000, /* 16 */
 44         0xe808, 0x3000, 0x8000, 0x0000, /* 1e */
 45         0x0000, 0x0000, 0x0000, 0x000f, /* 26 */
 46         0x0405, 0x0410, 0xbb80, 0xbb80, /* 2e */
 47         0x0000, 0xbb80, 0x0000, 0x0000, /* 36 */
 48         0x0000, 0x2000, 0x0000, 0x0000, /* 3e */
 49         0x0000, 0x0000, 0x0000, 0x0000, /* 46 */
 50         0x0000, 0x0000, 0xf83e, 0xffff, /* 4e */
 51         0x0000, 0x0000, 0x0000, 0xf83e, /* 56 */
 52         0x0008, 0x0000, 0x0000, 0x0000, /* 5e */
 53         0xb032, 0x3e00, 0x0000, 0x0000, /* 66 */
 54         0x0000, 0x0000, 0x0000, 0x0000, /* 6e */
 55         0x0000, 0x0000, 0x0000, 0x0006, /* 76 */
 56         0x0001, 0x0000, 0x574d, 0x4c12, /* 7e */
 57 };
 58 
 59 #define HPL_MIXER       0x0
 60 #define HPR_MIXER       0x1
 61 
 62 static const char *wm9712_alc_select[] = {"None", "Left", "Right", "Stereo"};
 63 static const char *wm9712_alc_mux[] = {"Stereo", "Left", "Right", "None"};
 64 static const char *wm9712_out3_src[] = {"Left", "VREF", "Left + Right",
 65         "Mono"};
 66 static const char *wm9712_spk_src[] = {"Speaker Mix", "Headphone Mix"};
 67 static const char *wm9712_rec_adc[] = {"Stereo", "Left", "Right", "Mute"};
 68 static const char *wm9712_base[] = {"Linear Control", "Adaptive Boost"};
 69 static const char *wm9712_rec_gain[] = {"+1.5dB Steps", "+0.75dB Steps"};
 70 static const char *wm9712_mic[] = {"Mic 1", "Differential", "Mic 2",
 71         "Stereo"};
 72 static const char *wm9712_rec_sel[] = {"Mic", "NC", "NC", "Speaker Mixer",
 73         "Line", "Headphone Mixer", "Phone Mixer", "Phone"};
 74 static const char *wm9712_ng_type[] = {"Constant Gain", "Mute"};
 75 static const char *wm9712_diff_sel[] = {"Mic", "Line"};
 76 
 77 static const DECLARE_TLV_DB_SCALE(main_tlv, -3450, 150, 0);
 78 static const DECLARE_TLV_DB_SCALE(boost_tlv, 0, 2000, 0);
 79 
 80 static const struct soc_enum wm9712_enum[] = {
 81 SOC_ENUM_SINGLE(AC97_PCI_SVID, 14, 4, wm9712_alc_select),
 82 SOC_ENUM_SINGLE(AC97_VIDEO, 12, 4, wm9712_alc_mux),
 83 SOC_ENUM_SINGLE(AC97_AUX, 9, 4, wm9712_out3_src),
 84 SOC_ENUM_SINGLE(AC97_AUX, 8, 2, wm9712_spk_src),
 85 SOC_ENUM_SINGLE(AC97_REC_SEL, 12, 4, wm9712_rec_adc),
 86 SOC_ENUM_SINGLE(AC97_MASTER_TONE, 15, 2, wm9712_base),
 87 SOC_ENUM_DOUBLE(AC97_REC_GAIN, 14, 6, 2, wm9712_rec_gain),
 88 SOC_ENUM_SINGLE(AC97_MIC, 5, 4, wm9712_mic),
 89 SOC_ENUM_SINGLE(AC97_REC_SEL, 8, 8, wm9712_rec_sel),
 90 SOC_ENUM_SINGLE(AC97_REC_SEL, 0, 8, wm9712_rec_sel),
 91 SOC_ENUM_SINGLE(AC97_PCI_SVID, 5, 2, wm9712_ng_type),
 92 SOC_ENUM_SINGLE(0x5c, 8, 2, wm9712_diff_sel),
 93 };
 94 
 95 static const struct snd_kcontrol_new wm9712_snd_ac97_controls[] = {
 96 SOC_DOUBLE("Speaker Playback Volume", AC97_MASTER, 8, 0, 31, 1),
 97 SOC_SINGLE("Speaker Playback Switch", AC97_MASTER, 15, 1, 1),
 98 SOC_DOUBLE("Headphone Playback Volume", AC97_HEADPHONE, 8, 0, 31, 1),
 99 SOC_SINGLE("Headphone Playback Switch", AC97_HEADPHONE, 15, 1, 1),
100 SOC_DOUBLE("PCM Playback Volume", AC97_PCM, 8, 0, 31, 1),
101 
102 SOC_SINGLE("Speaker Playback ZC Switch", AC97_MASTER, 7, 1, 0),
103 SOC_SINGLE("Speaker Playback Invert Switch", AC97_MASTER, 6, 1, 0),
104 SOC_SINGLE("Headphone Playback ZC Switch", AC97_HEADPHONE, 7, 1, 0),
105 SOC_SINGLE("Mono Playback ZC Switch", AC97_MASTER_MONO, 7, 1, 0),
106 SOC_SINGLE("Mono Playback Volume", AC97_MASTER_MONO, 0, 31, 1),
107 SOC_SINGLE("Mono Playback Switch", AC97_MASTER_MONO, 15, 1, 1),
108 
109 SOC_SINGLE("ALC Target Volume", AC97_CODEC_CLASS_REV, 12, 15, 0),
110 SOC_SINGLE("ALC Hold Time", AC97_CODEC_CLASS_REV, 8, 15, 0),
111 SOC_SINGLE("ALC Decay Time", AC97_CODEC_CLASS_REV, 4, 15, 0),
112 SOC_SINGLE("ALC Attack Time", AC97_CODEC_CLASS_REV, 0, 15, 0),
113 SOC_ENUM("ALC Function", wm9712_enum[0]),
114 SOC_SINGLE("ALC Max Volume", AC97_PCI_SVID, 11, 7, 0),
115 SOC_SINGLE("ALC ZC Timeout", AC97_PCI_SVID, 9, 3, 1),
116 SOC_SINGLE("ALC ZC Switch", AC97_PCI_SVID, 8, 1, 0),
117 SOC_SINGLE("ALC NG Switch", AC97_PCI_SVID, 7, 1, 0),
118 SOC_ENUM("ALC NG Type", wm9712_enum[10]),
119 SOC_SINGLE("ALC NG Threshold", AC97_PCI_SVID, 0, 31, 1),
120 
121 SOC_SINGLE("Mic Headphone  Volume", AC97_VIDEO, 12, 7, 1),
122 SOC_SINGLE("ALC Headphone Volume", AC97_VIDEO, 7, 7, 1),
123 
124 SOC_SINGLE("Out3 Switch", AC97_AUX, 15, 1, 1),
125 SOC_SINGLE("Out3 ZC Switch", AC97_AUX, 7, 1, 1),
126 SOC_SINGLE("Out3 Volume", AC97_AUX, 0, 31, 1),
127 
128 SOC_SINGLE("PCBeep Bypass Headphone Volume", AC97_PC_BEEP, 12, 7, 1),
129 SOC_SINGLE("PCBeep Bypass Speaker Volume", AC97_PC_BEEP, 8, 7, 1),
130 SOC_SINGLE("PCBeep Bypass Phone Volume", AC97_PC_BEEP, 4, 7, 1),
131 
132 SOC_SINGLE("Aux Playback Headphone Volume", AC97_CD, 12, 7, 1),
133 SOC_SINGLE("Aux Playback Speaker Volume", AC97_CD, 8, 7, 1),
134 SOC_SINGLE("Aux Playback Phone Volume", AC97_CD, 4, 7, 1),
135 
136 SOC_SINGLE("Phone Volume", AC97_PHONE, 0, 15, 1),
137 SOC_DOUBLE("Line Capture Volume", AC97_LINE, 8, 0, 31, 1),
138 
139 SOC_SINGLE_TLV("Capture Boost Switch", AC97_REC_SEL, 14, 1, 0, boost_tlv),
140 SOC_SINGLE_TLV("Capture to Phone Boost Switch", AC97_REC_SEL, 11, 1, 1,
141                boost_tlv),
142 
143 SOC_SINGLE("3D Upper Cut-off Switch", AC97_3D_CONTROL, 5, 1, 1),
144 SOC_SINGLE("3D Lower Cut-off Switch", AC97_3D_CONTROL, 4, 1, 1),
145 SOC_SINGLE("3D Playback Volume", AC97_3D_CONTROL, 0, 15, 0),
146 
147 SOC_ENUM("Bass Control", wm9712_enum[5]),
148 SOC_SINGLE("Bass Cut-off Switch", AC97_MASTER_TONE, 12, 1, 1),
149 SOC_SINGLE("Tone Cut-off Switch", AC97_MASTER_TONE, 4, 1, 1),
150 SOC_SINGLE("Playback Attenuate (-6dB) Switch", AC97_MASTER_TONE, 6, 1, 0),
151 SOC_SINGLE("Bass Volume", AC97_MASTER_TONE, 8, 15, 1),
152 SOC_SINGLE("Treble Volume", AC97_MASTER_TONE, 0, 15, 1),
153 
154 SOC_SINGLE("Capture Switch", AC97_REC_GAIN, 15, 1, 1),
155 SOC_ENUM("Capture Volume Steps", wm9712_enum[6]),
156 SOC_DOUBLE("Capture Volume", AC97_REC_GAIN, 8, 0, 63, 0),
157 SOC_SINGLE("Capture ZC Switch", AC97_REC_GAIN, 7, 1, 0),
158 
159 SOC_SINGLE_TLV("Mic 1 Volume", AC97_MIC, 8, 31, 1, main_tlv),
160 SOC_SINGLE_TLV("Mic 2 Volume", AC97_MIC, 0, 31, 1, main_tlv),
161 SOC_SINGLE_TLV("Mic Boost Volume", AC97_MIC, 7, 1, 0, boost_tlv),
162 };
163 
164 static const unsigned int wm9712_mixer_mute_regs[] = {
165         AC97_VIDEO,
166         AC97_PCM,
167         AC97_LINE,
168         AC97_PHONE,
169         AC97_CD,
170         AC97_PC_BEEP,
171 };
172 
173 /* We have to create a fake left and right HP mixers because
174  * the codec only has a single control that is shared by both channels.
175  * This makes it impossible to determine the audio path.
176  */
177 static int wm9712_hp_mixer_put(struct snd_kcontrol *kcontrol,
178         struct snd_ctl_elem_value *ucontrol)
179 {
180         struct snd_soc_dapm_context *dapm = snd_soc_dapm_kcontrol_dapm(kcontrol);
181         struct snd_soc_codec *codec = snd_soc_dapm_to_codec(dapm);
182         struct wm9712_priv *wm9712 = snd_soc_codec_get_drvdata(codec);
183         unsigned int val = ucontrol->value.integer.value[0];
184         struct soc_mixer_control *mc =
185                 (struct soc_mixer_control *)kcontrol->private_value;
186         unsigned int mixer, mask, shift, old;
187         struct snd_soc_dapm_update update;
188         bool change;
189 
190         mixer = mc->shift >> 8;
191         shift = mc->shift & 0xff;
192         mask = 1 << shift;
193 
194         mutex_lock(&wm9712->lock);
195         old = wm9712->hp_mixer[mixer];
196         if (ucontrol->value.integer.value[0])
197                 wm9712->hp_mixer[mixer] |= mask;
198         else
199                 wm9712->hp_mixer[mixer] &= ~mask;
200 
201         change = old != wm9712->hp_mixer[mixer];
202         if (change) {
203                 update.kcontrol = kcontrol;
204                 update.reg = wm9712_mixer_mute_regs[shift];
205                 update.mask = 0x8000;
206                 if ((wm9712->hp_mixer[0] & mask) ||
207                     (wm9712->hp_mixer[1] & mask))
208                         update.val = 0x0;
209                 else
210                         update.val = 0x8000;
211 
212                 snd_soc_dapm_mixer_update_power(dapm, kcontrol, val,
213                         &update);
214         }
215 
216         mutex_unlock(&wm9712->lock);
217 
218         return change;
219 }
220 
221 static int wm9712_hp_mixer_get(struct snd_kcontrol *kcontrol,
222         struct snd_ctl_elem_value *ucontrol)
223 {
224         struct snd_soc_dapm_context *dapm = snd_soc_dapm_kcontrol_dapm(kcontrol);
225         struct snd_soc_codec *codec = snd_soc_dapm_to_codec(dapm);
226         struct wm9712_priv *wm9712 = snd_soc_codec_get_drvdata(codec);
227         struct soc_mixer_control *mc =
228                 (struct soc_mixer_control *)kcontrol->private_value;
229         unsigned int shift, mixer;
230 
231         mixer = mc->shift >> 8;
232         shift = mc->shift & 0xff;
233 
234         ucontrol->value.integer.value[0] =
235                 (wm9712->hp_mixer[mixer] >> shift) & 1;
236 
237         return 0;
238 }
239 
240 #define WM9712_HP_MIXER_CTRL(xname, xmixer, xshift) { \
241         .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
242         .info = snd_soc_info_volsw, \
243         .get = wm9712_hp_mixer_get, .put = wm9712_hp_mixer_put, \
244         .private_value = SOC_SINGLE_VALUE(SND_SOC_NOPM, \
245                 (xmixer << 8) | xshift, 1, 0, 0) \
246 }
247 
248 /* Left Headphone Mixers */
249 static const struct snd_kcontrol_new wm9712_hpl_mixer_controls[] = {
250         WM9712_HP_MIXER_CTRL("PCBeep Bypass Switch", HPL_MIXER, 5),
251         WM9712_HP_MIXER_CTRL("Aux Playback Switch", HPL_MIXER, 4),
252         WM9712_HP_MIXER_CTRL("Phone Bypass Switch", HPL_MIXER, 3),
253         WM9712_HP_MIXER_CTRL("Line Bypass Switch", HPL_MIXER, 2),
254         WM9712_HP_MIXER_CTRL("PCM Playback Switch", HPL_MIXER, 1),
255         WM9712_HP_MIXER_CTRL("Mic Sidetone Switch", HPL_MIXER, 0),
256 };
257 
258 /* Right Headphone Mixers */
259 static const struct snd_kcontrol_new wm9712_hpr_mixer_controls[] = {
260         WM9712_HP_MIXER_CTRL("PCBeep Bypass Switch", HPR_MIXER, 5),
261         WM9712_HP_MIXER_CTRL("Aux Playback Switch", HPR_MIXER, 4),
262         WM9712_HP_MIXER_CTRL("Phone Bypass Switch", HPR_MIXER, 3),
263         WM9712_HP_MIXER_CTRL("Line Bypass Switch", HPR_MIXER, 2),
264         WM9712_HP_MIXER_CTRL("PCM Playback Switch", HPR_MIXER, 1),
265         WM9712_HP_MIXER_CTRL("Mic Sidetone Switch", HPR_MIXER, 0),
266 };
267 
268 /* Speaker Mixer */
269 static const struct snd_kcontrol_new wm9712_speaker_mixer_controls[] = {
270         SOC_DAPM_SINGLE("PCBeep Bypass Switch", AC97_PC_BEEP, 11, 1, 1),
271         SOC_DAPM_SINGLE("Aux Playback Switch", AC97_CD, 11, 1, 1),
272         SOC_DAPM_SINGLE("Phone Bypass Switch", AC97_PHONE, 14, 1, 1),
273         SOC_DAPM_SINGLE("Line Bypass Switch", AC97_LINE, 14, 1, 1),
274         SOC_DAPM_SINGLE("PCM Playback Switch", AC97_PCM, 14, 1, 1),
275 };
276 
277 /* Phone Mixer */
278 static const struct snd_kcontrol_new wm9712_phone_mixer_controls[] = {
279         SOC_DAPM_SINGLE("PCBeep Bypass Switch", AC97_PC_BEEP, 7, 1, 1),
280         SOC_DAPM_SINGLE("Aux Playback Switch", AC97_CD, 7, 1, 1),
281         SOC_DAPM_SINGLE("Line Bypass Switch", AC97_LINE, 13, 1, 1),
282         SOC_DAPM_SINGLE("PCM Playback Switch", AC97_PCM, 13, 1, 1),
283         SOC_DAPM_SINGLE("Mic 1 Sidetone Switch", AC97_MIC, 14, 1, 1),
284         SOC_DAPM_SINGLE("Mic 2 Sidetone Switch", AC97_MIC, 13, 1, 1),
285 };
286 
287 /* ALC headphone mux */
288 static const struct snd_kcontrol_new wm9712_alc_mux_controls =
289 SOC_DAPM_ENUM("Route", wm9712_enum[1]);
290 
291 /* out 3 mux */
292 static const struct snd_kcontrol_new wm9712_out3_mux_controls =
293 SOC_DAPM_ENUM("Route", wm9712_enum[2]);
294 
295 /* spk mux */
296 static const struct snd_kcontrol_new wm9712_spk_mux_controls =
297 SOC_DAPM_ENUM("Route", wm9712_enum[3]);
298 
299 /* Capture to Phone mux */
300 static const struct snd_kcontrol_new wm9712_capture_phone_mux_controls =
301 SOC_DAPM_ENUM("Route", wm9712_enum[4]);
302 
303 /* Capture left select */
304 static const struct snd_kcontrol_new wm9712_capture_selectl_controls =
305 SOC_DAPM_ENUM("Route", wm9712_enum[8]);
306 
307 /* Capture right select */
308 static const struct snd_kcontrol_new wm9712_capture_selectr_controls =
309 SOC_DAPM_ENUM("Route", wm9712_enum[9]);
310 
311 /* Mic select */
312 static const struct snd_kcontrol_new wm9712_mic_src_controls =
313 SOC_DAPM_ENUM("Mic Source Select", wm9712_enum[7]);
314 
315 /* diff select */
316 static const struct snd_kcontrol_new wm9712_diff_sel_controls =
317 SOC_DAPM_ENUM("Route", wm9712_enum[11]);
318 
319 static const struct snd_soc_dapm_widget wm9712_dapm_widgets[] = {
320 SND_SOC_DAPM_MUX("ALC Sidetone Mux", SND_SOC_NOPM, 0, 0,
321         &wm9712_alc_mux_controls),
322 SND_SOC_DAPM_MUX("Out3 Mux", SND_SOC_NOPM, 0, 0,
323         &wm9712_out3_mux_controls),
324 SND_SOC_DAPM_MUX("Speaker Mux", SND_SOC_NOPM, 0, 0,
325         &wm9712_spk_mux_controls),
326 SND_SOC_DAPM_MUX("Capture Phone Mux", SND_SOC_NOPM, 0, 0,
327         &wm9712_capture_phone_mux_controls),
328 SND_SOC_DAPM_MUX("Left Capture Select", SND_SOC_NOPM, 0, 0,
329         &wm9712_capture_selectl_controls),
330 SND_SOC_DAPM_MUX("Right Capture Select", SND_SOC_NOPM, 0, 0,
331         &wm9712_capture_selectr_controls),
332 SND_SOC_DAPM_MUX("Left Mic Select Source", SND_SOC_NOPM, 0, 0,
333         &wm9712_mic_src_controls),
334 SND_SOC_DAPM_MUX("Right Mic Select Source", SND_SOC_NOPM, 0, 0,
335         &wm9712_mic_src_controls),
336 SND_SOC_DAPM_MUX("Differential Source", SND_SOC_NOPM, 0, 0,
337         &wm9712_diff_sel_controls),
338 SND_SOC_DAPM_MIXER("AC97 Mixer", SND_SOC_NOPM, 0, 0, NULL, 0),
339 SND_SOC_DAPM_MIXER("Left HP Mixer", AC97_INT_PAGING, 9, 1,
340         &wm9712_hpl_mixer_controls[0], ARRAY_SIZE(wm9712_hpl_mixer_controls)),
341 SND_SOC_DAPM_MIXER("Right HP Mixer", AC97_INT_PAGING, 8, 1,
342         &wm9712_hpr_mixer_controls[0], ARRAY_SIZE(wm9712_hpr_mixer_controls)),
343 SND_SOC_DAPM_MIXER("Phone Mixer", AC97_INT_PAGING, 6, 1,
344         &wm9712_phone_mixer_controls[0], ARRAY_SIZE(wm9712_phone_mixer_controls)),
345 SND_SOC_DAPM_MIXER("Speaker Mixer", AC97_INT_PAGING, 7, 1,
346         &wm9712_speaker_mixer_controls[0],
347         ARRAY_SIZE(wm9712_speaker_mixer_controls)),
348 SND_SOC_DAPM_MIXER("Mono Mixer", SND_SOC_NOPM, 0, 0, NULL, 0),
349 SND_SOC_DAPM_DAC("Left DAC", "Left HiFi Playback", AC97_INT_PAGING, 14, 1),
350 SND_SOC_DAPM_DAC("Right DAC", "Right HiFi Playback", AC97_INT_PAGING, 13, 1),
351 SND_SOC_DAPM_DAC("Aux DAC", "Aux Playback", SND_SOC_NOPM, 0, 0),
352 SND_SOC_DAPM_ADC("Left ADC", "Left HiFi Capture", AC97_INT_PAGING, 12, 1),
353 SND_SOC_DAPM_ADC("Right ADC", "Right HiFi Capture", AC97_INT_PAGING, 11, 1),
354 SND_SOC_DAPM_PGA("Headphone PGA", AC97_INT_PAGING, 4, 1, NULL, 0),
355 SND_SOC_DAPM_PGA("Speaker PGA", AC97_INT_PAGING, 3, 1, NULL, 0),
356 SND_SOC_DAPM_PGA("Out 3 PGA", AC97_INT_PAGING, 5, 1, NULL, 0),
357 SND_SOC_DAPM_PGA("Line PGA", AC97_INT_PAGING, 2, 1, NULL, 0),
358 SND_SOC_DAPM_PGA("Phone PGA", AC97_INT_PAGING, 1, 1, NULL, 0),
359 SND_SOC_DAPM_PGA("Mic PGA", AC97_INT_PAGING, 0, 1, NULL, 0),
360 SND_SOC_DAPM_PGA("Differential Mic", SND_SOC_NOPM, 0, 0, NULL, 0),
361 SND_SOC_DAPM_MICBIAS("Mic Bias", AC97_INT_PAGING, 10, 1),
362 SND_SOC_DAPM_OUTPUT("MONOOUT"),
363 SND_SOC_DAPM_OUTPUT("HPOUTL"),
364 SND_SOC_DAPM_OUTPUT("HPOUTR"),
365 SND_SOC_DAPM_OUTPUT("LOUT2"),
366 SND_SOC_DAPM_OUTPUT("ROUT2"),
367 SND_SOC_DAPM_OUTPUT("OUT3"),
368 SND_SOC_DAPM_INPUT("LINEINL"),
369 SND_SOC_DAPM_INPUT("LINEINR"),
370 SND_SOC_DAPM_INPUT("PHONE"),
371 SND_SOC_DAPM_INPUT("PCBEEP"),
372 SND_SOC_DAPM_INPUT("MIC1"),
373 SND_SOC_DAPM_INPUT("MIC2"),
374 };
375 
376 static const struct snd_soc_dapm_route wm9712_audio_map[] = {
377         /* virtual mixer - mixes left & right channels for spk and mono */
378         {"AC97 Mixer", NULL, "Left DAC"},
379         {"AC97 Mixer", NULL, "Right DAC"},
380 
381         /* Left HP mixer */
382         {"Left HP Mixer", "PCBeep Bypass Switch", "PCBEEP"},
383         {"Left HP Mixer", "Aux Playback Switch",  "Aux DAC"},
384         {"Left HP Mixer", "Phone Bypass Switch",  "Phone PGA"},
385         {"Left HP Mixer", "Line Bypass Switch",   "Line PGA"},
386         {"Left HP Mixer", "PCM Playback Switch",  "Left DAC"},
387         {"Left HP Mixer", "Mic Sidetone Switch",  "Mic PGA"},
388         {"Left HP Mixer", NULL,  "ALC Sidetone Mux"},
389 
390         /* Right HP mixer */
391         {"Right HP Mixer", "PCBeep Bypass Switch", "PCBEEP"},
392         {"Right HP Mixer", "Aux Playback Switch",  "Aux DAC"},
393         {"Right HP Mixer", "Phone Bypass Switch",  "Phone PGA"},
394         {"Right HP Mixer", "Line Bypass Switch",   "Line PGA"},
395         {"Right HP Mixer", "PCM Playback Switch",  "Right DAC"},
396         {"Right HP Mixer", "Mic Sidetone Switch",  "Mic PGA"},
397         {"Right HP Mixer", NULL,  "ALC Sidetone Mux"},
398 
399         /* speaker mixer */
400         {"Speaker Mixer", "PCBeep Bypass Switch", "PCBEEP"},
401         {"Speaker Mixer", "Line Bypass Switch",   "Line PGA"},
402         {"Speaker Mixer", "PCM Playback Switch",  "AC97 Mixer"},
403         {"Speaker Mixer", "Phone Bypass Switch",  "Phone PGA"},
404         {"Speaker Mixer", "Aux Playback Switch",  "Aux DAC"},
405 
406         /* Phone mixer */
407         {"Phone Mixer", "PCBeep Bypass Switch",  "PCBEEP"},
408         {"Phone Mixer", "Line Bypass Switch",    "Line PGA"},
409         {"Phone Mixer", "Aux Playback Switch",   "Aux DAC"},
410         {"Phone Mixer", "PCM Playback Switch",   "AC97 Mixer"},
411         {"Phone Mixer", "Mic 1 Sidetone Switch", "Mic PGA"},
412         {"Phone Mixer", "Mic 2 Sidetone Switch", "Mic PGA"},
413 
414         /* inputs */
415         {"Line PGA", NULL, "LINEINL"},
416         {"Line PGA", NULL, "LINEINR"},
417         {"Phone PGA", NULL, "PHONE"},
418         {"Mic PGA", NULL, "MIC1"},
419         {"Mic PGA", NULL, "MIC2"},
420 
421         /* microphones */
422         {"Differential Mic", NULL, "MIC1"},
423         {"Differential Mic", NULL, "MIC2"},
424         {"Left Mic Select Source", "Mic 1", "MIC1"},
425         {"Left Mic Select Source", "Mic 2", "MIC2"},
426         {"Left Mic Select Source", "Stereo", "MIC1"},
427         {"Left Mic Select Source", "Differential", "Differential Mic"},
428         {"Right Mic Select Source", "Mic 1", "MIC1"},
429         {"Right Mic Select Source", "Mic 2", "MIC2"},
430         {"Right Mic Select Source", "Stereo", "MIC2"},
431         {"Right Mic Select Source", "Differential", "Differential Mic"},
432 
433         /* left capture selector */
434         {"Left Capture Select", "Mic", "MIC1"},
435         {"Left Capture Select", "Speaker Mixer", "Speaker Mixer"},
436         {"Left Capture Select", "Line", "LINEINL"},
437         {"Left Capture Select", "Headphone Mixer", "Left HP Mixer"},
438         {"Left Capture Select", "Phone Mixer", "Phone Mixer"},
439         {"Left Capture Select", "Phone", "PHONE"},
440 
441         /* right capture selector */
442         {"Right Capture Select", "Mic", "MIC2"},
443         {"Right Capture Select", "Speaker Mixer", "Speaker Mixer"},
444         {"Right Capture Select", "Line", "LINEINR"},
445         {"Right Capture Select", "Headphone Mixer", "Right HP Mixer"},
446         {"Right Capture Select", "Phone Mixer", "Phone Mixer"},
447         {"Right Capture Select", "Phone", "PHONE"},
448 
449         /* ALC Sidetone */
450         {"ALC Sidetone Mux", "Stereo", "Left Capture Select"},
451         {"ALC Sidetone Mux", "Stereo", "Right Capture Select"},
452         {"ALC Sidetone Mux", "Left", "Left Capture Select"},
453         {"ALC Sidetone Mux", "Right", "Right Capture Select"},
454 
455         /* ADC's */
456         {"Left ADC", NULL, "Left Capture Select"},
457         {"Right ADC", NULL, "Right Capture Select"},
458 
459         /* outputs */
460         {"MONOOUT", NULL, "Phone Mixer"},
461         {"HPOUTL", NULL, "Headphone PGA"},
462         {"Headphone PGA", NULL, "Left HP Mixer"},
463         {"HPOUTR", NULL, "Headphone PGA"},
464         {"Headphone PGA", NULL, "Right HP Mixer"},
465 
466         /* mono mixer */
467         {"Mono Mixer", NULL, "Left HP Mixer"},
468         {"Mono Mixer", NULL, "Right HP Mixer"},
469 
470         /* Out3 Mux */
471         {"Out3 Mux", "Left", "Left HP Mixer"},
472         {"Out3 Mux", "Mono", "Phone Mixer"},
473         {"Out3 Mux", "Left + Right", "Mono Mixer"},
474         {"Out 3 PGA", NULL, "Out3 Mux"},
475         {"OUT3", NULL, "Out 3 PGA"},
476 
477         /* speaker Mux */
478         {"Speaker Mux", "Speaker Mix", "Speaker Mixer"},
479         {"Speaker Mux", "Headphone Mix", "Mono Mixer"},
480         {"Speaker PGA", NULL, "Speaker Mux"},
481         {"LOUT2", NULL, "Speaker PGA"},
482         {"ROUT2", NULL, "Speaker PGA"},
483 };
484 
485 static unsigned int ac97_read(struct snd_soc_codec *codec,
486         unsigned int reg)
487 {
488         struct wm9712_priv *wm9712 = snd_soc_codec_get_drvdata(codec);
489         u16 *cache = codec->reg_cache;
490 
491         if (reg == AC97_RESET || reg == AC97_GPIO_STATUS ||
492                 reg == AC97_VENDOR_ID1 || reg == AC97_VENDOR_ID2 ||
493                 reg == AC97_REC_GAIN)
494                 return soc_ac97_ops->read(wm9712->ac97, reg);
495         else {
496                 reg = reg >> 1;
497 
498                 if (reg >= (ARRAY_SIZE(wm9712_reg)))
499                         return -EIO;
500 
501                 return cache[reg];
502         }
503 }
504 
505 static int ac97_write(struct snd_soc_codec *codec, unsigned int reg,
506         unsigned int val)
507 {
508         struct wm9712_priv *wm9712 = snd_soc_codec_get_drvdata(codec);
509         u16 *cache = codec->reg_cache;
510 
511         soc_ac97_ops->write(wm9712->ac97, reg, val);
512         reg = reg >> 1;
513         if (reg < (ARRAY_SIZE(wm9712_reg)))
514                 cache[reg] = val;
515 
516         return 0;
517 }
518 
519 static int ac97_prepare(struct snd_pcm_substream *substream,
520                         struct snd_soc_dai *dai)
521 {
522         struct snd_soc_codec *codec = dai->codec;
523         int reg;
524         u16 vra;
525         struct snd_pcm_runtime *runtime = substream->runtime;
526 
527         vra = ac97_read(codec, AC97_EXTENDED_STATUS);
528         ac97_write(codec, AC97_EXTENDED_STATUS, vra | 0x1);
529 
530         if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
531                 reg = AC97_PCM_FRONT_DAC_RATE;
532         else
533                 reg = AC97_PCM_LR_ADC_RATE;
534 
535         return ac97_write(codec, reg, runtime->rate);
536 }
537 
538 static int ac97_aux_prepare(struct snd_pcm_substream *substream,
539                             struct snd_soc_dai *dai)
540 {
541         struct snd_soc_codec *codec = dai->codec;
542         u16 vra, xsle;
543         struct snd_pcm_runtime *runtime = substream->runtime;
544 
545         vra = ac97_read(codec, AC97_EXTENDED_STATUS);
546         ac97_write(codec, AC97_EXTENDED_STATUS, vra | 0x1);
547         xsle = ac97_read(codec, AC97_PCI_SID);
548         ac97_write(codec, AC97_PCI_SID, xsle | 0x8000);
549 
550         if (substream->stream != SNDRV_PCM_STREAM_PLAYBACK)
551                 return -ENODEV;
552 
553         return ac97_write(codec, AC97_PCM_SURR_DAC_RATE, runtime->rate);
554 }
555 
556 #define WM9712_AC97_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\
557                 SNDRV_PCM_RATE_22050 | SNDRV_PCM_RATE_44100 |\
558                 SNDRV_PCM_RATE_48000)
559 
560 static const struct snd_soc_dai_ops wm9712_dai_ops_hifi = {
561         .prepare        = ac97_prepare,
562 };
563 
564 static const struct snd_soc_dai_ops wm9712_dai_ops_aux = {
565         .prepare        = ac97_aux_prepare,
566 };
567 
568 static struct snd_soc_dai_driver wm9712_dai[] = {
569 {
570         .name = "wm9712-hifi",
571         .playback = {
572                 .stream_name = "HiFi Playback",
573                 .channels_min = 1,
574                 .channels_max = 2,
575                 .rates = WM9712_AC97_RATES,
576                 .formats = SND_SOC_STD_AC97_FMTS,},
577         .capture = {
578                 .stream_name = "HiFi Capture",
579                 .channels_min = 1,
580                 .channels_max = 2,
581                 .rates = WM9712_AC97_RATES,
582                 .formats = SND_SOC_STD_AC97_FMTS,},
583         .ops = &wm9712_dai_ops_hifi,
584 },
585 {
586         .name = "wm9712-aux",
587         .playback = {
588                 .stream_name = "Aux Playback",
589                 .channels_min = 1,
590                 .channels_max = 1,
591                 .rates = WM9712_AC97_RATES,
592                 .formats = SND_SOC_STD_AC97_FMTS,},
593         .ops = &wm9712_dai_ops_aux,
594 }
595 };
596 
597 static int wm9712_set_bias_level(struct snd_soc_codec *codec,
598                                  enum snd_soc_bias_level level)
599 {
600         switch (level) {
601         case SND_SOC_BIAS_ON:
602         case SND_SOC_BIAS_PREPARE:
603                 break;
604         case SND_SOC_BIAS_STANDBY:
605                 ac97_write(codec, AC97_POWERDOWN, 0x0000);
606                 break;
607         case SND_SOC_BIAS_OFF:
608                 /* disable everything including AC link */
609                 ac97_write(codec, AC97_EXTENDED_MSTATUS, 0xffff);
610                 ac97_write(codec, AC97_POWERDOWN, 0xffff);
611                 break;
612         }
613         codec->dapm.bias_level = level;
614         return 0;
615 }
616 
617 static int wm9712_reset(struct snd_soc_codec *codec, int try_warm)
618 {
619         struct wm9712_priv *wm9712 = snd_soc_codec_get_drvdata(codec);
620 
621         if (try_warm && soc_ac97_ops->warm_reset) {
622                 soc_ac97_ops->warm_reset(wm9712->ac97);
623                 if (ac97_read(codec, 0) == wm9712_reg[0])
624                         return 1;
625         }
626 
627         soc_ac97_ops->reset(wm9712->ac97);
628         if (soc_ac97_ops->warm_reset)
629                 soc_ac97_ops->warm_reset(wm9712->ac97);
630         if (ac97_read(codec, 0) != wm9712_reg[0])
631                 goto err;
632         return 0;
633 
634 err:
635         dev_err(codec->dev, "Failed to reset: AC97 link error\n");
636         return -EIO;
637 }
638 
639 static int wm9712_soc_resume(struct snd_soc_codec *codec)
640 {
641         struct wm9712_priv *wm9712 = snd_soc_codec_get_drvdata(codec);
642         int i, ret;
643         u16 *cache = codec->reg_cache;
644 
645         ret = wm9712_reset(codec, 1);
646         if (ret < 0)
647                 return ret;
648 
649         wm9712_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
650 
651         if (ret == 0) {
652                 /* Sync reg_cache with the hardware after cold reset */
653                 for (i = 2; i < ARRAY_SIZE(wm9712_reg) << 1; i += 2) {
654                         if (i == AC97_INT_PAGING || i == AC97_POWERDOWN ||
655                             (i > 0x58 && i != 0x5c))
656                                 continue;
657                         soc_ac97_ops->write(wm9712->ac97, i, cache[i>>1]);
658                 }
659         }
660 
661         return ret;
662 }
663 
664 static int wm9712_soc_probe(struct snd_soc_codec *codec)
665 {
666         struct wm9712_priv *wm9712 = snd_soc_codec_get_drvdata(codec);
667         int ret = 0;
668 
669         wm9712->ac97 = snd_soc_alloc_ac97_codec(codec);
670         if (IS_ERR(wm9712->ac97)) {
671                 ret = PTR_ERR(wm9712->ac97);
672                 dev_err(codec->dev, "Failed to register AC97 codec: %d\n", ret);
673                 return ret;
674         }
675 
676         ret = wm9712_reset(codec, 0);
677         if (ret < 0)
678                 goto err_put_device;
679 
680         ret = device_add(&wm9712->ac97->dev);
681         if (ret)
682                 goto err_put_device;
683 
684         /* set alc mux to none */
685         ac97_write(codec, AC97_VIDEO, ac97_read(codec, AC97_VIDEO) | 0x3000);
686 
687         return 0;
688 
689 err_put_device:
690         put_device(&wm9712->ac97->dev);
691         return ret;
692 }
693 
694 static int wm9712_soc_remove(struct snd_soc_codec *codec)
695 {
696         struct wm9712_priv *wm9712 = snd_soc_codec_get_drvdata(codec);
697 
698         snd_soc_free_ac97_codec(wm9712->ac97);
699         return 0;
700 }
701 
702 static struct snd_soc_codec_driver soc_codec_dev_wm9712 = {
703         .probe =        wm9712_soc_probe,
704         .remove =       wm9712_soc_remove,
705         .resume =       wm9712_soc_resume,
706         .read = ac97_read,
707         .write = ac97_write,
708         .set_bias_level = wm9712_set_bias_level,
709         .suspend_bias_off = true,
710         .reg_cache_size = ARRAY_SIZE(wm9712_reg),
711         .reg_word_size = sizeof(u16),
712         .reg_cache_step = 2,
713         .reg_cache_default = wm9712_reg,
714 
715         .controls = wm9712_snd_ac97_controls,
716         .num_controls = ARRAY_SIZE(wm9712_snd_ac97_controls),
717         .dapm_widgets = wm9712_dapm_widgets,
718         .num_dapm_widgets = ARRAY_SIZE(wm9712_dapm_widgets),
719         .dapm_routes = wm9712_audio_map,
720         .num_dapm_routes = ARRAY_SIZE(wm9712_audio_map),
721 };
722 
723 static int wm9712_probe(struct platform_device *pdev)
724 {
725         struct wm9712_priv *wm9712;
726 
727         wm9712 = devm_kzalloc(&pdev->dev, sizeof(*wm9712), GFP_KERNEL);
728         if (wm9712 == NULL)
729                 return -ENOMEM;
730 
731         mutex_init(&wm9712->lock);
732 
733         platform_set_drvdata(pdev, wm9712);
734 
735         return snd_soc_register_codec(&pdev->dev,
736                         &soc_codec_dev_wm9712, wm9712_dai, ARRAY_SIZE(wm9712_dai));
737 }
738 
739 static int wm9712_remove(struct platform_device *pdev)
740 {
741         snd_soc_unregister_codec(&pdev->dev);
742         return 0;
743 }
744 
745 static struct platform_driver wm9712_codec_driver = {
746         .driver = {
747                 .name = "wm9712-codec",
748         },
749 
750         .probe = wm9712_probe,
751         .remove = wm9712_remove,
752 };
753 
754 module_platform_driver(wm9712_codec_driver);
755 
756 MODULE_DESCRIPTION("ASoC WM9711/WM9712 driver");
757 MODULE_AUTHOR("Liam Girdwood");
758 MODULE_LICENSE("GPL");
759 

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