xref: /openbmc/linux/sound/soc/codecs/wm9712.c (revision e8f6f3b4)
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.enumerated.item[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.enumerated.item[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.enumerated.item[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_new_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 reset_err;
679 
680 	/* set alc mux to none */
681 	ac97_write(codec, AC97_VIDEO, ac97_read(codec, AC97_VIDEO) | 0x3000);
682 
683 	return 0;
684 
685 reset_err:
686 	snd_soc_free_ac97_codec(wm9712->ac97);
687 	return ret;
688 }
689 
690 static int wm9712_soc_remove(struct snd_soc_codec *codec)
691 {
692 	struct wm9712_priv *wm9712 = snd_soc_codec_get_drvdata(codec);
693 
694 	snd_soc_free_ac97_codec(wm9712->ac97);
695 	return 0;
696 }
697 
698 static struct snd_soc_codec_driver soc_codec_dev_wm9712 = {
699 	.probe = 	wm9712_soc_probe,
700 	.remove = 	wm9712_soc_remove,
701 	.resume =	wm9712_soc_resume,
702 	.read = ac97_read,
703 	.write = ac97_write,
704 	.set_bias_level = wm9712_set_bias_level,
705 	.suspend_bias_off = true,
706 	.reg_cache_size = ARRAY_SIZE(wm9712_reg),
707 	.reg_word_size = sizeof(u16),
708 	.reg_cache_step = 2,
709 	.reg_cache_default = wm9712_reg,
710 
711 	.controls = wm9712_snd_ac97_controls,
712 	.num_controls = ARRAY_SIZE(wm9712_snd_ac97_controls),
713 	.dapm_widgets = wm9712_dapm_widgets,
714 	.num_dapm_widgets = ARRAY_SIZE(wm9712_dapm_widgets),
715 	.dapm_routes = wm9712_audio_map,
716 	.num_dapm_routes = ARRAY_SIZE(wm9712_audio_map),
717 };
718 
719 static int wm9712_probe(struct platform_device *pdev)
720 {
721 	struct wm9712_priv *wm9712;
722 
723 	wm9712 = devm_kzalloc(&pdev->dev, sizeof(*wm9712), GFP_KERNEL);
724 	if (wm9712 == NULL)
725 		return -ENOMEM;
726 
727 	mutex_init(&wm9712->lock);
728 
729 	platform_set_drvdata(pdev, wm9712);
730 
731 	return snd_soc_register_codec(&pdev->dev,
732 			&soc_codec_dev_wm9712, wm9712_dai, ARRAY_SIZE(wm9712_dai));
733 }
734 
735 static int wm9712_remove(struct platform_device *pdev)
736 {
737 	snd_soc_unregister_codec(&pdev->dev);
738 	return 0;
739 }
740 
741 static struct platform_driver wm9712_codec_driver = {
742 	.driver = {
743 		.name = "wm9712-codec",
744 	},
745 
746 	.probe = wm9712_probe,
747 	.remove = wm9712_remove,
748 };
749 
750 module_platform_driver(wm9712_codec_driver);
751 
752 MODULE_DESCRIPTION("ASoC WM9711/WM9712 driver");
753 MODULE_AUTHOR("Liam Girdwood");
754 MODULE_LICENSE("GPL");
755