Version:  2.0.40 2.2.26 2.4.37 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 3.17

Linux/sound/soc/codecs/wm8753.c

  1 /*
  2  * wm8753.c  --  WM8753 ALSA Soc Audio driver
  3  *
  4  * Copyright 2003-11 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  * Notes:
 13  *  The WM8753 is a low power, high quality stereo codec with integrated PCM
 14  *  codec designed for portable digital telephony applications.
 15  *
 16  * Dual DAI:-
 17  *
 18  * This driver support 2 DAI PCM's. This makes the default PCM available for
 19  * HiFi audio (e.g. MP3, ogg) playback/capture and the other PCM available for
 20  * voice.
 21  *
 22  * Please note that the voice PCM can be connected directly to a Bluetooth
 23  * codec or GSM modem and thus cannot be read or written to, although it is
 24  * available to be configured with snd_hw_params(), etc and kcontrols in the
 25  * normal alsa manner.
 26  *
 27  * Fast DAI switching:-
 28  *
 29  * The driver can now fast switch between the DAI configurations via a
 30  * an alsa kcontrol. This allows the PCM to remain open.
 31  *
 32  */
 33 
 34 #include <linux/module.h>
 35 #include <linux/moduleparam.h>
 36 #include <linux/kernel.h>
 37 #include <linux/init.h>
 38 #include <linux/delay.h>
 39 #include <linux/pm.h>
 40 #include <linux/i2c.h>
 41 #include <linux/of_device.h>
 42 #include <linux/regmap.h>
 43 #include <linux/spi/spi.h>
 44 #include <linux/slab.h>
 45 #include <sound/core.h>
 46 #include <sound/pcm.h>
 47 #include <sound/pcm_params.h>
 48 #include <sound/soc.h>
 49 #include <sound/initval.h>
 50 #include <sound/tlv.h>
 51 #include <asm/div64.h>
 52 
 53 #include "wm8753.h"
 54 
 55 static int caps_charge = 2000;
 56 module_param(caps_charge, int, 0);
 57 MODULE_PARM_DESC(caps_charge, "WM8753 cap charge time (msecs)");
 58 
 59 static int wm8753_hifi_write_dai_fmt(struct snd_soc_codec *codec,
 60                 unsigned int fmt);
 61 static int wm8753_voice_write_dai_fmt(struct snd_soc_codec *codec,
 62                 unsigned int fmt);
 63 
 64 /*
 65  * wm8753 register cache
 66  * We can't read the WM8753 register space when we
 67  * are using 2 wire for device control, so we cache them instead.
 68  */
 69 static const struct reg_default wm8753_reg_defaults[] = {
 70         { 0x00, 0x0000 },
 71         { 0x01, 0x0008 },
 72         { 0x02, 0x0000 },
 73         { 0x03, 0x000a },
 74         { 0x04, 0x000a },
 75         { 0x05, 0x0033 },
 76         { 0x06, 0x0000 },
 77         { 0x07, 0x0007 },
 78         { 0x08, 0x00ff },
 79         { 0x09, 0x00ff },
 80         { 0x0a, 0x000f },
 81         { 0x0b, 0x000f },
 82         { 0x0c, 0x007b },
 83         { 0x0d, 0x0000 },
 84         { 0x0e, 0x0032 },
 85         { 0x0f, 0x0000 },
 86         { 0x10, 0x00c3 },
 87         { 0x11, 0x00c3 },
 88         { 0x12, 0x00c0 },
 89         { 0x13, 0x0000 },
 90         { 0x14, 0x0000 },
 91         { 0x15, 0x0000 },
 92         { 0x16, 0x0000 },
 93         { 0x17, 0x0000 },
 94         { 0x18, 0x0000 },
 95         { 0x19, 0x0000 },
 96         { 0x1a, 0x0000 },
 97         { 0x1b, 0x0000 },
 98         { 0x1c, 0x0000 },
 99         { 0x1d, 0x0000 },
100         { 0x1e, 0x0000 },
101         { 0x1f, 0x0000 },
102         { 0x20, 0x0055 },
103         { 0x21, 0x0005 },
104         { 0x22, 0x0050 },
105         { 0x23, 0x0055 },
106         { 0x24, 0x0050 },
107         { 0x25, 0x0055 },
108         { 0x26, 0x0050 },
109         { 0x27, 0x0055 },
110         { 0x28, 0x0079 },
111         { 0x29, 0x0079 },
112         { 0x2a, 0x0079 },
113         { 0x2b, 0x0079 },
114         { 0x2c, 0x0079 },
115         { 0x2d, 0x0000 },
116         { 0x2e, 0x0000 },
117         { 0x2f, 0x0000 },
118         { 0x30, 0x0000 },
119         { 0x31, 0x0097 },
120         { 0x32, 0x0097 },
121         { 0x33, 0x0000 },
122         { 0x34, 0x0004 },
123         { 0x35, 0x0000 },
124         { 0x36, 0x0083 },
125         { 0x37, 0x0024 },
126         { 0x38, 0x01ba },
127         { 0x39, 0x0000 },
128         { 0x3a, 0x0083 },
129         { 0x3b, 0x0024 },
130         { 0x3c, 0x01ba },
131         { 0x3d, 0x0000 },
132         { 0x3e, 0x0000 },
133         { 0x3f, 0x0000 },
134 };
135 
136 static bool wm8753_volatile(struct device *dev, unsigned int reg)
137 {
138         return reg == WM8753_RESET;
139 }
140 
141 static bool wm8753_writeable(struct device *dev, unsigned int reg)
142 {
143         return reg <= WM8753_ADCTL2;
144 }
145 
146 /* codec private data */
147 struct wm8753_priv {
148         struct regmap *regmap;
149         unsigned int sysclk;
150         unsigned int pcmclk;
151 
152         unsigned int voice_fmt;
153         unsigned int hifi_fmt;
154 
155         int dai_func;
156 };
157 
158 #define wm8753_reset(c) snd_soc_write(c, WM8753_RESET, 0)
159 
160 /*
161  * WM8753 Controls
162  */
163 static const char *wm8753_base[] = {"Linear Control", "Adaptive Boost"};
164 static const char *wm8753_base_filter[] =
165         {"130Hz @ 48kHz", "200Hz @ 48kHz", "100Hz @ 16kHz", "400Hz @ 48kHz",
166         "100Hz @ 8kHz", "200Hz @ 8kHz"};
167 static const char *wm8753_treble[] = {"8kHz", "4kHz"};
168 static const char *wm8753_alc_func[] = {"Off", "Right", "Left", "Stereo"};
169 static const char *wm8753_ng_type[] = {"Constant PGA Gain", "Mute ADC Output"};
170 static const char *wm8753_3d_func[] = {"Capture", "Playback"};
171 static const char *wm8753_3d_uc[] = {"2.2kHz", "1.5kHz"};
172 static const char *wm8753_3d_lc[] = {"200Hz", "500Hz"};
173 static const char *wm8753_deemp[] = {"None", "32kHz", "44.1kHz", "48kHz"};
174 static const char *wm8753_mono_mix[] = {"Stereo", "Left", "Right", "Mono"};
175 static const char *wm8753_dac_phase[] = {"Non Inverted", "Inverted"};
176 static const char *wm8753_line_mix[] = {"Line 1 + 2", "Line 1 - 2",
177         "Line 1", "Line 2"};
178 static const char *wm8753_mono_mux[] = {"Line Mix", "Rx Mix"};
179 static const char *wm8753_right_mux[] = {"Line 2", "Rx Mix"};
180 static const char *wm8753_left_mux[] = {"Line 1", "Rx Mix"};
181 static const char *wm8753_rxmsel[] = {"RXP - RXN", "RXP + RXN", "RXP", "RXN"};
182 static const char *wm8753_sidetone_mux[] = {"Left PGA", "Mic 1", "Mic 2",
183         "Right PGA"};
184 static const char *wm8753_mono2_src[] = {"Inverted Mono 1", "Left", "Right",
185         "Left + Right"};
186 static const char *wm8753_out3[] = {"VREF", "ROUT2", "Left + Right"};
187 static const char *wm8753_out4[] = {"VREF", "Capture ST", "LOUT2"};
188 static const char *wm8753_radcsel[] = {"PGA", "Line or RXP-RXN", "Sidetone"};
189 static const char *wm8753_ladcsel[] = {"PGA", "Line or RXP-RXN", "Line"};
190 static const char *wm8753_mono_adc[] = {"Stereo", "Analogue Mix Left",
191         "Analogue Mix Right", "Digital Mono Mix"};
192 static const char *wm8753_adc_hp[] = {"3.4Hz @ 48kHz", "82Hz @ 16k",
193         "82Hz @ 8kHz", "170Hz @ 8kHz"};
194 static const char *wm8753_adc_filter[] = {"HiFi", "Voice"};
195 static const char *wm8753_mic_sel[] = {"Mic 1", "Mic 2", "Mic 3"};
196 static const char *wm8753_dai_mode[] = {"DAI 0", "DAI 1", "DAI 2", "DAI 3"};
197 static const char *wm8753_dat_sel[] = {"Stereo", "Left ADC", "Right ADC",
198         "Channel Swap"};
199 static const char *wm8753_rout2_phase[] = {"Non Inverted", "Inverted"};
200 
201 static const struct soc_enum wm8753_enum[] = {
202 SOC_ENUM_SINGLE(WM8753_BASS, 7, 2, wm8753_base),
203 SOC_ENUM_SINGLE(WM8753_BASS, 4, 6, wm8753_base_filter),
204 SOC_ENUM_SINGLE(WM8753_TREBLE, 6, 2, wm8753_treble),
205 SOC_ENUM_SINGLE(WM8753_ALC1, 7, 4, wm8753_alc_func),
206 SOC_ENUM_SINGLE(WM8753_NGATE, 1, 2, wm8753_ng_type),
207 SOC_ENUM_SINGLE(WM8753_3D, 7, 2, wm8753_3d_func),
208 SOC_ENUM_SINGLE(WM8753_3D, 6, 2, wm8753_3d_uc),
209 SOC_ENUM_SINGLE(WM8753_3D, 5, 2, wm8753_3d_lc),
210 SOC_ENUM_SINGLE(WM8753_DAC, 1, 4, wm8753_deemp),
211 SOC_ENUM_SINGLE(WM8753_DAC, 4, 4, wm8753_mono_mix),
212 SOC_ENUM_SINGLE(WM8753_DAC, 6, 2, wm8753_dac_phase),
213 SOC_ENUM_SINGLE(WM8753_INCTL1, 3, 4, wm8753_line_mix),
214 SOC_ENUM_SINGLE(WM8753_INCTL1, 2, 2, wm8753_mono_mux),
215 SOC_ENUM_SINGLE(WM8753_INCTL1, 1, 2, wm8753_right_mux),
216 SOC_ENUM_SINGLE(WM8753_INCTL1, 0, 2, wm8753_left_mux),
217 SOC_ENUM_SINGLE(WM8753_INCTL2, 6, 4, wm8753_rxmsel),
218 SOC_ENUM_SINGLE(WM8753_INCTL2, 4, 4, wm8753_sidetone_mux),
219 SOC_ENUM_SINGLE(WM8753_OUTCTL, 7, 4, wm8753_mono2_src),
220 SOC_ENUM_SINGLE(WM8753_OUTCTL, 0, 3, wm8753_out3),
221 SOC_ENUM_SINGLE(WM8753_ADCTL2, 7, 3, wm8753_out4),
222 SOC_ENUM_SINGLE(WM8753_ADCIN, 2, 3, wm8753_radcsel),
223 SOC_ENUM_SINGLE(WM8753_ADCIN, 0, 3, wm8753_ladcsel),
224 SOC_ENUM_SINGLE(WM8753_ADCIN, 4, 4, wm8753_mono_adc),
225 SOC_ENUM_SINGLE(WM8753_ADC, 2, 4, wm8753_adc_hp),
226 SOC_ENUM_SINGLE(WM8753_ADC, 4, 2, wm8753_adc_filter),
227 SOC_ENUM_SINGLE(WM8753_MICBIAS, 6, 3, wm8753_mic_sel),
228 SOC_ENUM_SINGLE(WM8753_IOCTL, 2, 4, wm8753_dai_mode),
229 SOC_ENUM_SINGLE(WM8753_ADC, 7, 4, wm8753_dat_sel),
230 SOC_ENUM_SINGLE(WM8753_OUTCTL, 2, 2, wm8753_rout2_phase),
231 };
232 
233 
234 static int wm8753_get_dai(struct snd_kcontrol *kcontrol,
235         struct snd_ctl_elem_value *ucontrol)
236 {
237         struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
238         struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);
239 
240         ucontrol->value.integer.value[0] = wm8753->dai_func;
241         return 0;
242 }
243 
244 static int wm8753_set_dai(struct snd_kcontrol *kcontrol,
245         struct snd_ctl_elem_value *ucontrol)
246 {
247         struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
248         struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);
249         u16 ioctl;
250 
251         if (wm8753->dai_func == ucontrol->value.integer.value[0])
252                 return 0;
253 
254         if (snd_soc_codec_is_active(codec))
255                 return -EBUSY;
256 
257         ioctl = snd_soc_read(codec, WM8753_IOCTL);
258 
259         wm8753->dai_func = ucontrol->value.integer.value[0];
260 
261         if (((ioctl >> 2) & 0x3) == wm8753->dai_func)
262                 return 1;
263 
264         ioctl = (ioctl & 0x1f3) | (wm8753->dai_func << 2);
265         snd_soc_write(codec, WM8753_IOCTL, ioctl);
266 
267 
268         wm8753_hifi_write_dai_fmt(codec, wm8753->hifi_fmt);
269         wm8753_voice_write_dai_fmt(codec, wm8753->voice_fmt);
270 
271         return 1;
272 }
273 
274 static const DECLARE_TLV_DB_SCALE(rec_mix_tlv, -1500, 300, 0);
275 static const DECLARE_TLV_DB_SCALE(mic_preamp_tlv, 1200, 600, 0);
276 static const DECLARE_TLV_DB_SCALE(adc_tlv, -9750, 50, 1);
277 static const DECLARE_TLV_DB_SCALE(dac_tlv, -12750, 50, 1);
278 static const unsigned int out_tlv[] = {
279         TLV_DB_RANGE_HEAD(2),
280         /* 0000000 - 0101111 = "Analogue mute" */
281         0, 48, TLV_DB_SCALE_ITEM(-25500, 0, 0),
282         48, 127, TLV_DB_SCALE_ITEM(-7300, 100, 0),
283 };
284 static const DECLARE_TLV_DB_SCALE(mix_tlv, -1500, 300, 0);
285 static const DECLARE_TLV_DB_SCALE(voice_mix_tlv, -1200, 300, 0);
286 static const DECLARE_TLV_DB_SCALE(pga_tlv, -1725, 75, 0);
287 
288 static const struct snd_kcontrol_new wm8753_snd_controls[] = {
289 SOC_DOUBLE_R_TLV("PCM Volume", WM8753_LDAC, WM8753_RDAC, 0, 255, 0, dac_tlv),
290 
291 SOC_DOUBLE_R_TLV("ADC Capture Volume", WM8753_LADC, WM8753_RADC, 0, 255, 0,
292                  adc_tlv),
293 
294 SOC_DOUBLE_R_TLV("Headphone Playback Volume", WM8753_LOUT1V, WM8753_ROUT1V,
295                  0, 127, 0, out_tlv),
296 SOC_DOUBLE_R_TLV("Speaker Playback Volume", WM8753_LOUT2V, WM8753_ROUT2V, 0,
297                  127, 0, out_tlv),
298 
299 SOC_SINGLE_TLV("Mono Playback Volume", WM8753_MOUTV, 0, 127, 0, out_tlv),
300 
301 SOC_DOUBLE_R_TLV("Bypass Playback Volume", WM8753_LOUTM1, WM8753_ROUTM1, 4, 7,
302                  1, mix_tlv),
303 SOC_DOUBLE_R_TLV("Sidetone Playback Volume", WM8753_LOUTM2, WM8753_ROUTM2, 4,
304                  7, 1, mix_tlv),
305 SOC_DOUBLE_R_TLV("Voice Playback Volume", WM8753_LOUTM2, WM8753_ROUTM2, 0, 7,
306                  1, voice_mix_tlv),
307 
308 SOC_DOUBLE_R("Headphone Playback ZC Switch", WM8753_LOUT1V, WM8753_ROUT1V, 7,
309              1, 0),
310 SOC_DOUBLE_R("Speaker Playback ZC Switch", WM8753_LOUT2V, WM8753_ROUT2V, 7,
311              1, 0),
312 
313 SOC_SINGLE_TLV("Mono Bypass Playback Volume", WM8753_MOUTM1, 4, 7, 1, mix_tlv),
314 SOC_SINGLE_TLV("Mono Sidetone Playback Volume", WM8753_MOUTM2, 4, 7, 1,
315                mix_tlv),
316 SOC_SINGLE_TLV("Mono Voice Playback Volume", WM8753_MOUTM2, 0, 7, 1,
317                voice_mix_tlv),
318 SOC_SINGLE("Mono Playback ZC Switch", WM8753_MOUTV, 7, 1, 0),
319 
320 SOC_ENUM("Bass Boost", wm8753_enum[0]),
321 SOC_ENUM("Bass Filter", wm8753_enum[1]),
322 SOC_SINGLE("Bass Volume", WM8753_BASS, 0, 15, 1),
323 
324 SOC_SINGLE("Treble Volume", WM8753_TREBLE, 0, 15, 1),
325 SOC_ENUM("Treble Cut-off", wm8753_enum[2]),
326 
327 SOC_DOUBLE_TLV("Sidetone Capture Volume", WM8753_RECMIX1, 0, 4, 7, 1,
328                rec_mix_tlv),
329 SOC_SINGLE_TLV("Voice Sidetone Capture Volume", WM8753_RECMIX2, 0, 7, 1,
330                rec_mix_tlv),
331 
332 SOC_DOUBLE_R_TLV("Capture Volume", WM8753_LINVOL, WM8753_RINVOL, 0, 63, 0,
333                  pga_tlv),
334 SOC_DOUBLE_R("Capture ZC Switch", WM8753_LINVOL, WM8753_RINVOL, 6, 1, 0),
335 SOC_DOUBLE_R("Capture Switch", WM8753_LINVOL, WM8753_RINVOL, 7, 1, 1),
336 
337 SOC_ENUM("Capture Filter Select", wm8753_enum[23]),
338 SOC_ENUM("Capture Filter Cut-off", wm8753_enum[24]),
339 SOC_SINGLE("Capture Filter Switch", WM8753_ADC, 0, 1, 1),
340 
341 SOC_SINGLE("ALC Capture Target Volume", WM8753_ALC1, 0, 7, 0),
342 SOC_SINGLE("ALC Capture Max Volume", WM8753_ALC1, 4, 7, 0),
343 SOC_ENUM("ALC Capture Function", wm8753_enum[3]),
344 SOC_SINGLE("ALC Capture ZC Switch", WM8753_ALC2, 8, 1, 0),
345 SOC_SINGLE("ALC Capture Hold Time", WM8753_ALC2, 0, 15, 1),
346 SOC_SINGLE("ALC Capture Decay Time", WM8753_ALC3, 4, 15, 1),
347 SOC_SINGLE("ALC Capture Attack Time", WM8753_ALC3, 0, 15, 0),
348 SOC_SINGLE("ALC Capture NG Threshold", WM8753_NGATE, 3, 31, 0),
349 SOC_ENUM("ALC Capture NG Type", wm8753_enum[4]),
350 SOC_SINGLE("ALC Capture NG Switch", WM8753_NGATE, 0, 1, 0),
351 
352 SOC_ENUM("3D Function", wm8753_enum[5]),
353 SOC_ENUM("3D Upper Cut-off", wm8753_enum[6]),
354 SOC_ENUM("3D Lower Cut-off", wm8753_enum[7]),
355 SOC_SINGLE("3D Volume", WM8753_3D, 1, 15, 0),
356 SOC_SINGLE("3D Switch", WM8753_3D, 0, 1, 0),
357 
358 SOC_SINGLE("Capture 6dB Attenuate", WM8753_ADCTL1, 2, 1, 0),
359 SOC_SINGLE("Playback 6dB Attenuate", WM8753_ADCTL1, 1, 1, 0),
360 
361 SOC_ENUM("De-emphasis", wm8753_enum[8]),
362 SOC_ENUM("Playback Mono Mix", wm8753_enum[9]),
363 SOC_ENUM("Playback Phase", wm8753_enum[10]),
364 
365 SOC_SINGLE_TLV("Mic2 Capture Volume", WM8753_INCTL1, 7, 3, 0, mic_preamp_tlv),
366 SOC_SINGLE_TLV("Mic1 Capture Volume", WM8753_INCTL1, 5, 3, 0, mic_preamp_tlv),
367 
368 SOC_ENUM_EXT("DAI Mode", wm8753_enum[26], wm8753_get_dai, wm8753_set_dai),
369 
370 SOC_ENUM("ADC Data Select", wm8753_enum[27]),
371 SOC_ENUM("ROUT2 Phase", wm8753_enum[28]),
372 };
373 
374 /*
375  * _DAPM_ Controls
376  */
377 
378 /* Left Mixer */
379 static const struct snd_kcontrol_new wm8753_left_mixer_controls[] = {
380 SOC_DAPM_SINGLE("Voice Playback Switch", WM8753_LOUTM2, 8, 1, 0),
381 SOC_DAPM_SINGLE("Sidetone Playback Switch", WM8753_LOUTM2, 7, 1, 0),
382 SOC_DAPM_SINGLE("Left Playback Switch", WM8753_LOUTM1, 8, 1, 0),
383 SOC_DAPM_SINGLE("Bypass Playback Switch", WM8753_LOUTM1, 7, 1, 0),
384 };
385 
386 /* Right mixer */
387 static const struct snd_kcontrol_new wm8753_right_mixer_controls[] = {
388 SOC_DAPM_SINGLE("Voice Playback Switch", WM8753_ROUTM2, 8, 1, 0),
389 SOC_DAPM_SINGLE("Sidetone Playback Switch", WM8753_ROUTM2, 7, 1, 0),
390 SOC_DAPM_SINGLE("Right Playback Switch", WM8753_ROUTM1, 8, 1, 0),
391 SOC_DAPM_SINGLE("Bypass Playback Switch", WM8753_ROUTM1, 7, 1, 0),
392 };
393 
394 /* Mono mixer */
395 static const struct snd_kcontrol_new wm8753_mono_mixer_controls[] = {
396 SOC_DAPM_SINGLE("Left Playback Switch", WM8753_MOUTM1, 8, 1, 0),
397 SOC_DAPM_SINGLE("Right Playback Switch", WM8753_MOUTM2, 8, 1, 0),
398 SOC_DAPM_SINGLE("Voice Playback Switch", WM8753_MOUTM2, 3, 1, 0),
399 SOC_DAPM_SINGLE("Sidetone Playback Switch", WM8753_MOUTM2, 7, 1, 0),
400 SOC_DAPM_SINGLE("Bypass Playback Switch", WM8753_MOUTM1, 7, 1, 0),
401 };
402 
403 /* Mono 2 Mux */
404 static const struct snd_kcontrol_new wm8753_mono2_controls =
405 SOC_DAPM_ENUM("Route", wm8753_enum[17]);
406 
407 /* Out 3 Mux */
408 static const struct snd_kcontrol_new wm8753_out3_controls =
409 SOC_DAPM_ENUM("Route", wm8753_enum[18]);
410 
411 /* Out 4 Mux */
412 static const struct snd_kcontrol_new wm8753_out4_controls =
413 SOC_DAPM_ENUM("Route", wm8753_enum[19]);
414 
415 /* ADC Mono Mix */
416 static const struct snd_kcontrol_new wm8753_adc_mono_controls =
417 SOC_DAPM_ENUM("Route", wm8753_enum[22]);
418 
419 /* Record mixer */
420 static const struct snd_kcontrol_new wm8753_record_mixer_controls[] = {
421 SOC_DAPM_SINGLE("Voice Capture Switch", WM8753_RECMIX2, 3, 1, 0),
422 SOC_DAPM_SINGLE("Left Capture Switch", WM8753_RECMIX1, 3, 1, 0),
423 SOC_DAPM_SINGLE("Right Capture Switch", WM8753_RECMIX1, 7, 1, 0),
424 };
425 
426 /* Left ADC mux */
427 static const struct snd_kcontrol_new wm8753_adc_left_controls =
428 SOC_DAPM_ENUM("Route", wm8753_enum[21]);
429 
430 /* Right ADC mux */
431 static const struct snd_kcontrol_new wm8753_adc_right_controls =
432 SOC_DAPM_ENUM("Route", wm8753_enum[20]);
433 
434 /* MIC mux */
435 static const struct snd_kcontrol_new wm8753_mic_mux_controls =
436 SOC_DAPM_ENUM("Route", wm8753_enum[16]);
437 
438 /* ALC mixer */
439 static const struct snd_kcontrol_new wm8753_alc_mixer_controls[] = {
440 SOC_DAPM_SINGLE("Line Capture Switch", WM8753_INCTL2, 3, 1, 0),
441 SOC_DAPM_SINGLE("Mic2 Capture Switch", WM8753_INCTL2, 2, 1, 0),
442 SOC_DAPM_SINGLE("Mic1 Capture Switch", WM8753_INCTL2, 1, 1, 0),
443 SOC_DAPM_SINGLE("Rx Capture Switch", WM8753_INCTL2, 0, 1, 0),
444 };
445 
446 /* Left Line mux */
447 static const struct snd_kcontrol_new wm8753_line_left_controls =
448 SOC_DAPM_ENUM("Route", wm8753_enum[14]);
449 
450 /* Right Line mux */
451 static const struct snd_kcontrol_new wm8753_line_right_controls =
452 SOC_DAPM_ENUM("Route", wm8753_enum[13]);
453 
454 /* Mono Line mux */
455 static const struct snd_kcontrol_new wm8753_line_mono_controls =
456 SOC_DAPM_ENUM("Route", wm8753_enum[12]);
457 
458 /* Line mux and mixer */
459 static const struct snd_kcontrol_new wm8753_line_mux_mix_controls =
460 SOC_DAPM_ENUM("Route", wm8753_enum[11]);
461 
462 /* Rx mux and mixer */
463 static const struct snd_kcontrol_new wm8753_rx_mux_mix_controls =
464 SOC_DAPM_ENUM("Route", wm8753_enum[15]);
465 
466 /* Mic Selector Mux */
467 static const struct snd_kcontrol_new wm8753_mic_sel_mux_controls =
468 SOC_DAPM_ENUM("Route", wm8753_enum[25]);
469 
470 static const struct snd_soc_dapm_widget wm8753_dapm_widgets[] = {
471 SND_SOC_DAPM_MICBIAS("Mic Bias", WM8753_PWR1, 5, 0),
472 SND_SOC_DAPM_MIXER("Left Mixer", WM8753_PWR4, 0, 0,
473         &wm8753_left_mixer_controls[0], ARRAY_SIZE(wm8753_left_mixer_controls)),
474 SND_SOC_DAPM_PGA("Left Out 1", WM8753_PWR3, 8, 0, NULL, 0),
475 SND_SOC_DAPM_PGA("Left Out 2", WM8753_PWR3, 6, 0, NULL, 0),
476 SND_SOC_DAPM_DAC("Left DAC", "Left HiFi Playback", WM8753_PWR1, 3, 0),
477 SND_SOC_DAPM_OUTPUT("LOUT1"),
478 SND_SOC_DAPM_OUTPUT("LOUT2"),
479 SND_SOC_DAPM_MIXER("Right Mixer", WM8753_PWR4, 1, 0,
480         &wm8753_right_mixer_controls[0], ARRAY_SIZE(wm8753_right_mixer_controls)),
481 SND_SOC_DAPM_PGA("Right Out 1", WM8753_PWR3, 7, 0, NULL, 0),
482 SND_SOC_DAPM_PGA("Right Out 2", WM8753_PWR3, 5, 0, NULL, 0),
483 SND_SOC_DAPM_DAC("Right DAC", "Right HiFi Playback", WM8753_PWR1, 2, 0),
484 SND_SOC_DAPM_OUTPUT("ROUT1"),
485 SND_SOC_DAPM_OUTPUT("ROUT2"),
486 SND_SOC_DAPM_MIXER("Mono Mixer", WM8753_PWR4, 2, 0,
487         &wm8753_mono_mixer_controls[0], ARRAY_SIZE(wm8753_mono_mixer_controls)),
488 SND_SOC_DAPM_PGA("Mono Out 1", WM8753_PWR3, 2, 0, NULL, 0),
489 SND_SOC_DAPM_PGA("Mono Out 2", WM8753_PWR3, 1, 0, NULL, 0),
490 SND_SOC_DAPM_DAC("Voice DAC", "Voice Playback", WM8753_PWR1, 4, 0),
491 SND_SOC_DAPM_OUTPUT("MONO1"),
492 SND_SOC_DAPM_MUX("Mono 2 Mux", SND_SOC_NOPM, 0, 0, &wm8753_mono2_controls),
493 SND_SOC_DAPM_OUTPUT("MONO2"),
494 SND_SOC_DAPM_MIXER("Out3 Left + Right", -1, 0, 0, NULL, 0),
495 SND_SOC_DAPM_MUX("Out3 Mux", SND_SOC_NOPM, 0, 0, &wm8753_out3_controls),
496 SND_SOC_DAPM_PGA("Out 3", WM8753_PWR3, 4, 0, NULL, 0),
497 SND_SOC_DAPM_OUTPUT("OUT3"),
498 SND_SOC_DAPM_MUX("Out4 Mux", SND_SOC_NOPM, 0, 0, &wm8753_out4_controls),
499 SND_SOC_DAPM_PGA("Out 4", WM8753_PWR3, 3, 0, NULL, 0),
500 SND_SOC_DAPM_OUTPUT("OUT4"),
501 SND_SOC_DAPM_MIXER("Playback Mixer", WM8753_PWR4, 3, 0,
502         &wm8753_record_mixer_controls[0],
503         ARRAY_SIZE(wm8753_record_mixer_controls)),
504 SND_SOC_DAPM_ADC("Left ADC", "Left Capture", WM8753_PWR2, 3, 0),
505 SND_SOC_DAPM_ADC("Right ADC", "Right Capture", WM8753_PWR2, 2, 0),
506 SND_SOC_DAPM_MUX("Capture Left Mixer", SND_SOC_NOPM, 0, 0,
507         &wm8753_adc_mono_controls),
508 SND_SOC_DAPM_MUX("Capture Right Mixer", SND_SOC_NOPM, 0, 0,
509         &wm8753_adc_mono_controls),
510 SND_SOC_DAPM_MUX("Capture Left Mux", SND_SOC_NOPM, 0, 0,
511         &wm8753_adc_left_controls),
512 SND_SOC_DAPM_MUX("Capture Right Mux", SND_SOC_NOPM, 0, 0,
513         &wm8753_adc_right_controls),
514 SND_SOC_DAPM_MUX("Mic Sidetone Mux", SND_SOC_NOPM, 0, 0,
515         &wm8753_mic_mux_controls),
516 SND_SOC_DAPM_PGA("Left Capture Volume", WM8753_PWR2, 5, 0, NULL, 0),
517 SND_SOC_DAPM_PGA("Right Capture Volume", WM8753_PWR2, 4, 0, NULL, 0),
518 SND_SOC_DAPM_MIXER("ALC Mixer", WM8753_PWR2, 6, 0,
519         &wm8753_alc_mixer_controls[0], ARRAY_SIZE(wm8753_alc_mixer_controls)),
520 SND_SOC_DAPM_MUX("Line Left Mux", SND_SOC_NOPM, 0, 0,
521         &wm8753_line_left_controls),
522 SND_SOC_DAPM_MUX("Line Right Mux", SND_SOC_NOPM, 0, 0,
523         &wm8753_line_right_controls),
524 SND_SOC_DAPM_MUX("Line Mono Mux", SND_SOC_NOPM, 0, 0,
525         &wm8753_line_mono_controls),
526 SND_SOC_DAPM_MUX("Line Mixer", WM8753_PWR2, 0, 0,
527         &wm8753_line_mux_mix_controls),
528 SND_SOC_DAPM_MUX("Rx Mixer", WM8753_PWR2, 1, 0,
529         &wm8753_rx_mux_mix_controls),
530 SND_SOC_DAPM_PGA("Mic 1 Volume", WM8753_PWR2, 8, 0, NULL, 0),
531 SND_SOC_DAPM_PGA("Mic 2 Volume", WM8753_PWR2, 7, 0, NULL, 0),
532 SND_SOC_DAPM_MUX("Mic Selection Mux", SND_SOC_NOPM, 0, 0,
533         &wm8753_mic_sel_mux_controls),
534 SND_SOC_DAPM_INPUT("LINE1"),
535 SND_SOC_DAPM_INPUT("LINE2"),
536 SND_SOC_DAPM_INPUT("RXP"),
537 SND_SOC_DAPM_INPUT("RXN"),
538 SND_SOC_DAPM_INPUT("ACIN"),
539 SND_SOC_DAPM_OUTPUT("ACOP"),
540 SND_SOC_DAPM_INPUT("MIC1N"),
541 SND_SOC_DAPM_INPUT("MIC1"),
542 SND_SOC_DAPM_INPUT("MIC2N"),
543 SND_SOC_DAPM_INPUT("MIC2"),
544 SND_SOC_DAPM_VMID("VREF"),
545 };
546 
547 static const struct snd_soc_dapm_route wm8753_dapm_routes[] = {
548         /* left mixer */
549         {"Left Mixer", "Left Playback Switch", "Left DAC"},
550         {"Left Mixer", "Voice Playback Switch", "Voice DAC"},
551         {"Left Mixer", "Sidetone Playback Switch", "Mic Sidetone Mux"},
552         {"Left Mixer", "Bypass Playback Switch", "Line Left Mux"},
553 
554         /* right mixer */
555         {"Right Mixer", "Right Playback Switch", "Right DAC"},
556         {"Right Mixer", "Voice Playback Switch", "Voice DAC"},
557         {"Right Mixer", "Sidetone Playback Switch", "Mic Sidetone Mux"},
558         {"Right Mixer", "Bypass Playback Switch", "Line Right Mux"},
559 
560         /* mono mixer */
561         {"Mono Mixer", "Voice Playback Switch", "Voice DAC"},
562         {"Mono Mixer", "Left Playback Switch", "Left DAC"},
563         {"Mono Mixer", "Right Playback Switch", "Right DAC"},
564         {"Mono Mixer", "Sidetone Playback Switch", "Mic Sidetone Mux"},
565         {"Mono Mixer", "Bypass Playback Switch", "Line Mono Mux"},
566 
567         /* left out */
568         {"Left Out 1", NULL, "Left Mixer"},
569         {"Left Out 2", NULL, "Left Mixer"},
570         {"LOUT1", NULL, "Left Out 1"},
571         {"LOUT2", NULL, "Left Out 2"},
572 
573         /* right out */
574         {"Right Out 1", NULL, "Right Mixer"},
575         {"Right Out 2", NULL, "Right Mixer"},
576         {"ROUT1", NULL, "Right Out 1"},
577         {"ROUT2", NULL, "Right Out 2"},
578 
579         /* mono 1 out */
580         {"Mono Out 1", NULL, "Mono Mixer"},
581         {"MONO1", NULL, "Mono Out 1"},
582 
583         /* mono 2 out */
584         {"Mono 2 Mux", "Left + Right", "Out3 Left + Right"},
585         {"Mono 2 Mux", "Inverted Mono 1", "MONO1"},
586         {"Mono 2 Mux", "Left", "Left Mixer"},
587         {"Mono 2 Mux", "Right", "Right Mixer"},
588         {"Mono Out 2", NULL, "Mono 2 Mux"},
589         {"MONO2", NULL, "Mono Out 2"},
590 
591         /* out 3 */
592         {"Out3 Left + Right", NULL, "Left Mixer"},
593         {"Out3 Left + Right", NULL, "Right Mixer"},
594         {"Out3 Mux", "VREF", "VREF"},
595         {"Out3 Mux", "Left + Right", "Out3 Left + Right"},
596         {"Out3 Mux", "ROUT2", "ROUT2"},
597         {"Out 3", NULL, "Out3 Mux"},
598         {"OUT3", NULL, "Out 3"},
599 
600         /* out 4 */
601         {"Out4 Mux", "VREF", "VREF"},
602         {"Out4 Mux", "Capture ST", "Playback Mixer"},
603         {"Out4 Mux", "LOUT2", "LOUT2"},
604         {"Out 4", NULL, "Out4 Mux"},
605         {"OUT4", NULL, "Out 4"},
606 
607         /* record mixer  */
608         {"Playback Mixer", "Left Capture Switch", "Left Mixer"},
609         {"Playback Mixer", "Voice Capture Switch", "Mono Mixer"},
610         {"Playback Mixer", "Right Capture Switch", "Right Mixer"},
611 
612         /* Mic/SideTone Mux */
613         {"Mic Sidetone Mux", "Left PGA", "Left Capture Volume"},
614         {"Mic Sidetone Mux", "Right PGA", "Right Capture Volume"},
615         {"Mic Sidetone Mux", "Mic 1", "Mic 1 Volume"},
616         {"Mic Sidetone Mux", "Mic 2", "Mic 2 Volume"},
617 
618         /* Capture Left Mux */
619         {"Capture Left Mux", "PGA", "Left Capture Volume"},
620         {"Capture Left Mux", "Line or RXP-RXN", "Line Left Mux"},
621         {"Capture Left Mux", "Line", "LINE1"},
622 
623         /* Capture Right Mux */
624         {"Capture Right Mux", "PGA", "Right Capture Volume"},
625         {"Capture Right Mux", "Line or RXP-RXN", "Line Right Mux"},
626         {"Capture Right Mux", "Sidetone", "Playback Mixer"},
627 
628         /* Mono Capture mixer-mux */
629         {"Capture Right Mixer", "Stereo", "Capture Right Mux"},
630         {"Capture Left Mixer", "Stereo", "Capture Left Mux"},
631         {"Capture Left Mixer", "Analogue Mix Left", "Capture Left Mux"},
632         {"Capture Left Mixer", "Analogue Mix Left", "Capture Right Mux"},
633         {"Capture Right Mixer", "Analogue Mix Right", "Capture Left Mux"},
634         {"Capture Right Mixer", "Analogue Mix Right", "Capture Right Mux"},
635         {"Capture Left Mixer", "Digital Mono Mix", "Capture Left Mux"},
636         {"Capture Left Mixer", "Digital Mono Mix", "Capture Right Mux"},
637         {"Capture Right Mixer", "Digital Mono Mix", "Capture Left Mux"},
638         {"Capture Right Mixer", "Digital Mono Mix", "Capture Right Mux"},
639 
640         /* ADC */
641         {"Left ADC", NULL, "Capture Left Mixer"},
642         {"Right ADC", NULL, "Capture Right Mixer"},
643 
644         /* Left Capture Volume */
645         {"Left Capture Volume", NULL, "ACIN"},
646 
647         /* Right Capture Volume */
648         {"Right Capture Volume", NULL, "Mic 2 Volume"},
649 
650         /* ALC Mixer */
651         {"ALC Mixer", "Line Capture Switch", "Line Mixer"},
652         {"ALC Mixer", "Mic2 Capture Switch", "Mic 2 Volume"},
653         {"ALC Mixer", "Mic1 Capture Switch", "Mic 1 Volume"},
654         {"ALC Mixer", "Rx Capture Switch", "Rx Mixer"},
655 
656         /* Line Left Mux */
657         {"Line Left Mux", "Line 1", "LINE1"},
658         {"Line Left Mux", "Rx Mix", "Rx Mixer"},
659 
660         /* Line Right Mux */
661         {"Line Right Mux", "Line 2", "LINE2"},
662         {"Line Right Mux", "Rx Mix", "Rx Mixer"},
663 
664         /* Line Mono Mux */
665         {"Line Mono Mux", "Line Mix", "Line Mixer"},
666         {"Line Mono Mux", "Rx Mix", "Rx Mixer"},
667 
668         /* Line Mixer/Mux */
669         {"Line Mixer", "Line 1 + 2", "LINE1"},
670         {"Line Mixer", "Line 1 - 2", "LINE1"},
671         {"Line Mixer", "Line 1 + 2", "LINE2"},
672         {"Line Mixer", "Line 1 - 2", "LINE2"},
673         {"Line Mixer", "Line 1", "LINE1"},
674         {"Line Mixer", "Line 2", "LINE2"},
675 
676         /* Rx Mixer/Mux */
677         {"Rx Mixer", "RXP - RXN", "RXP"},
678         {"Rx Mixer", "RXP + RXN", "RXP"},
679         {"Rx Mixer", "RXP - RXN", "RXN"},
680         {"Rx Mixer", "RXP + RXN", "RXN"},
681         {"Rx Mixer", "RXP", "RXP"},
682         {"Rx Mixer", "RXN", "RXN"},
683 
684         /* Mic 1 Volume */
685         {"Mic 1 Volume", NULL, "MIC1N"},
686         {"Mic 1 Volume", NULL, "Mic Selection Mux"},
687 
688         /* Mic 2 Volume */
689         {"Mic 2 Volume", NULL, "MIC2N"},
690         {"Mic 2 Volume", NULL, "MIC2"},
691 
692         /* Mic Selector Mux */
693         {"Mic Selection Mux", "Mic 1", "MIC1"},
694         {"Mic Selection Mux", "Mic 2", "MIC2N"},
695         {"Mic Selection Mux", "Mic 3", "MIC2"},
696 
697         /* ACOP */
698         {"ACOP", NULL, "ALC Mixer"},
699 };
700 
701 /* PLL divisors */
702 struct _pll_div {
703         u32 div2:1;
704         u32 n:4;
705         u32 k:24;
706 };
707 
708 /* The size in bits of the pll divide multiplied by 10
709  * to allow rounding later */
710 #define FIXED_PLL_SIZE ((1 << 22) * 10)
711 
712 static void pll_factors(struct _pll_div *pll_div, unsigned int target,
713         unsigned int source)
714 {
715         u64 Kpart;
716         unsigned int K, Ndiv, Nmod;
717 
718         Ndiv = target / source;
719         if (Ndiv < 6) {
720                 source >>= 1;
721                 pll_div->div2 = 1;
722                 Ndiv = target / source;
723         } else
724                 pll_div->div2 = 0;
725 
726         if ((Ndiv < 6) || (Ndiv > 12))
727                 printk(KERN_WARNING
728                         "wm8753: unsupported N = %u\n", Ndiv);
729 
730         pll_div->n = Ndiv;
731         Nmod = target % source;
732         Kpart = FIXED_PLL_SIZE * (long long)Nmod;
733 
734         do_div(Kpart, source);
735 
736         K = Kpart & 0xFFFFFFFF;
737 
738         /* Check if we need to round */
739         if ((K % 10) >= 5)
740                 K += 5;
741 
742         /* Move down to proper range now rounding is done */
743         K /= 10;
744 
745         pll_div->k = K;
746 }
747 
748 static int wm8753_set_dai_pll(struct snd_soc_dai *codec_dai, int pll_id,
749                 int source, unsigned int freq_in, unsigned int freq_out)
750 {
751         u16 reg, enable;
752         int offset;
753         struct snd_soc_codec *codec = codec_dai->codec;
754 
755         if (pll_id < WM8753_PLL1 || pll_id > WM8753_PLL2)
756                 return -ENODEV;
757 
758         if (pll_id == WM8753_PLL1) {
759                 offset = 0;
760                 enable = 0x10;
761                 reg = snd_soc_read(codec, WM8753_CLOCK) & 0xffef;
762         } else {
763                 offset = 4;
764                 enable = 0x8;
765                 reg = snd_soc_read(codec, WM8753_CLOCK) & 0xfff7;
766         }
767 
768         if (!freq_in || !freq_out) {
769                 /* disable PLL  */
770                 snd_soc_write(codec, WM8753_PLL1CTL1 + offset, 0x0026);
771                 snd_soc_write(codec, WM8753_CLOCK, reg);
772                 return 0;
773         } else {
774                 u16 value = 0;
775                 struct _pll_div pll_div;
776 
777                 pll_factors(&pll_div, freq_out * 8, freq_in);
778 
779                 /* set up N and K PLL divisor ratios */
780                 /* bits 8:5 = PLL_N, bits 3:0 = PLL_K[21:18] */
781                 value = (pll_div.n << 5) + ((pll_div.k & 0x3c0000) >> 18);
782                 snd_soc_write(codec, WM8753_PLL1CTL2 + offset, value);
783 
784                 /* bits 8:0 = PLL_K[17:9] */
785                 value = (pll_div.k & 0x03fe00) >> 9;
786                 snd_soc_write(codec, WM8753_PLL1CTL3 + offset, value);
787 
788                 /* bits 8:0 = PLL_K[8:0] */
789                 value = pll_div.k & 0x0001ff;
790                 snd_soc_write(codec, WM8753_PLL1CTL4 + offset, value);
791 
792                 /* set PLL as input and enable */
793                 snd_soc_write(codec, WM8753_PLL1CTL1 + offset, 0x0027 |
794                         (pll_div.div2 << 3));
795                 snd_soc_write(codec, WM8753_CLOCK, reg | enable);
796         }
797         return 0;
798 }
799 
800 struct _coeff_div {
801         u32 mclk;
802         u32 rate;
803         u8 sr:5;
804         u8 usb:1;
805 };
806 
807 /* codec hifi mclk (after PLL) clock divider coefficients */
808 static const struct _coeff_div coeff_div[] = {
809         /* 8k */
810         {12288000, 8000, 0x6, 0x0},
811         {11289600, 8000, 0x16, 0x0},
812         {18432000, 8000, 0x7, 0x0},
813         {16934400, 8000, 0x17, 0x0},
814         {12000000, 8000, 0x6, 0x1},
815 
816         /* 11.025k */
817         {11289600, 11025, 0x18, 0x0},
818         {16934400, 11025, 0x19, 0x0},
819         {12000000, 11025, 0x19, 0x1},
820 
821         /* 16k */
822         {12288000, 16000, 0xa, 0x0},
823         {18432000, 16000, 0xb, 0x0},
824         {12000000, 16000, 0xa, 0x1},
825 
826         /* 22.05k */
827         {11289600, 22050, 0x1a, 0x0},
828         {16934400, 22050, 0x1b, 0x0},
829         {12000000, 22050, 0x1b, 0x1},
830 
831         /* 32k */
832         {12288000, 32000, 0xc, 0x0},
833         {18432000, 32000, 0xd, 0x0},
834         {12000000, 32000, 0xa, 0x1},
835 
836         /* 44.1k */
837         {11289600, 44100, 0x10, 0x0},
838         {16934400, 44100, 0x11, 0x0},
839         {12000000, 44100, 0x11, 0x1},
840 
841         /* 48k */
842         {12288000, 48000, 0x0, 0x0},
843         {18432000, 48000, 0x1, 0x0},
844         {12000000, 48000, 0x0, 0x1},
845 
846         /* 88.2k */
847         {11289600, 88200, 0x1e, 0x0},
848         {16934400, 88200, 0x1f, 0x0},
849         {12000000, 88200, 0x1f, 0x1},
850 
851         /* 96k */
852         {12288000, 96000, 0xe, 0x0},
853         {18432000, 96000, 0xf, 0x0},
854         {12000000, 96000, 0xe, 0x1},
855 };
856 
857 static int get_coeff(int mclk, int rate)
858 {
859         int i;
860 
861         for (i = 0; i < ARRAY_SIZE(coeff_div); i++) {
862                 if (coeff_div[i].rate == rate && coeff_div[i].mclk == mclk)
863                         return i;
864         }
865         return -EINVAL;
866 }
867 
868 /*
869  * Clock after PLL and dividers
870  */
871 static int wm8753_set_dai_sysclk(struct snd_soc_dai *codec_dai,
872                 int clk_id, unsigned int freq, int dir)
873 {
874         struct snd_soc_codec *codec = codec_dai->codec;
875         struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);
876 
877         switch (freq) {
878         case 11289600:
879         case 12000000:
880         case 12288000:
881         case 16934400:
882         case 18432000:
883                 if (clk_id == WM8753_MCLK) {
884                         wm8753->sysclk = freq;
885                         return 0;
886                 } else if (clk_id == WM8753_PCMCLK) {
887                         wm8753->pcmclk = freq;
888                         return 0;
889                 }
890                 break;
891         }
892         return -EINVAL;
893 }
894 
895 /*
896  * Set's ADC and Voice DAC format.
897  */
898 static int wm8753_vdac_adc_set_dai_fmt(struct snd_soc_codec *codec,
899                 unsigned int fmt)
900 {
901         u16 voice = snd_soc_read(codec, WM8753_PCM) & 0x01ec;
902 
903         /* interface format */
904         switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
905         case SND_SOC_DAIFMT_I2S:
906                 voice |= 0x0002;
907                 break;
908         case SND_SOC_DAIFMT_RIGHT_J:
909                 break;
910         case SND_SOC_DAIFMT_LEFT_J:
911                 voice |= 0x0001;
912                 break;
913         case SND_SOC_DAIFMT_DSP_A:
914                 voice |= 0x0003;
915                 break;
916         case SND_SOC_DAIFMT_DSP_B:
917                 voice |= 0x0013;
918                 break;
919         default:
920                 return -EINVAL;
921         }
922 
923         snd_soc_write(codec, WM8753_PCM, voice);
924         return 0;
925 }
926 
927 /*
928  * Set PCM DAI bit size and sample rate.
929  */
930 static int wm8753_pcm_hw_params(struct snd_pcm_substream *substream,
931                                 struct snd_pcm_hw_params *params,
932                                 struct snd_soc_dai *dai)
933 {
934         struct snd_soc_codec *codec = dai->codec;
935         struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);
936         u16 voice = snd_soc_read(codec, WM8753_PCM) & 0x01f3;
937         u16 srate = snd_soc_read(codec, WM8753_SRATE1) & 0x017f;
938 
939         /* bit size */
940         switch (params_width(params)) {
941         case 16:
942                 break;
943         case 20:
944                 voice |= 0x0004;
945                 break;
946         case 24:
947                 voice |= 0x0008;
948                 break;
949         case 32:
950                 voice |= 0x000c;
951                 break;
952         }
953 
954         /* sample rate */
955         if (params_rate(params) * 384 == wm8753->pcmclk)
956                 srate |= 0x80;
957         snd_soc_write(codec, WM8753_SRATE1, srate);
958 
959         snd_soc_write(codec, WM8753_PCM, voice);
960         return 0;
961 }
962 
963 /*
964  * Set's PCM dai fmt and BCLK.
965  */
966 static int wm8753_pcm_set_dai_fmt(struct snd_soc_codec *codec,
967                 unsigned int fmt)
968 {
969         u16 voice, ioctl;
970 
971         voice = snd_soc_read(codec, WM8753_PCM) & 0x011f;
972         ioctl = snd_soc_read(codec, WM8753_IOCTL) & 0x015d;
973 
974         /* set master/slave audio interface */
975         switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
976         case SND_SOC_DAIFMT_CBS_CFS:
977                 break;
978         case SND_SOC_DAIFMT_CBM_CFM:
979                 ioctl |= 0x2;
980         case SND_SOC_DAIFMT_CBM_CFS:
981                 voice |= 0x0040;
982                 break;
983         default:
984                 return -EINVAL;
985         }
986 
987         /* clock inversion */
988         switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
989         case SND_SOC_DAIFMT_DSP_A:
990         case SND_SOC_DAIFMT_DSP_B:
991                 /* frame inversion not valid for DSP modes */
992                 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
993                 case SND_SOC_DAIFMT_NB_NF:
994                         break;
995                 case SND_SOC_DAIFMT_IB_NF:
996                         voice |= 0x0080;
997                         break;
998                 default:
999                         return -EINVAL;
1000                 }
1001                 break;
1002         case SND_SOC_DAIFMT_I2S:
1003         case SND_SOC_DAIFMT_RIGHT_J:
1004         case SND_SOC_DAIFMT_LEFT_J:
1005                 voice &= ~0x0010;
1006                 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
1007                 case SND_SOC_DAIFMT_NB_NF:
1008                         break;
1009                 case SND_SOC_DAIFMT_IB_IF:
1010                         voice |= 0x0090;
1011                         break;
1012                 case SND_SOC_DAIFMT_IB_NF:
1013                         voice |= 0x0080;
1014                         break;
1015                 case SND_SOC_DAIFMT_NB_IF:
1016                         voice |= 0x0010;
1017                         break;
1018                 default:
1019                         return -EINVAL;
1020                 }
1021                 break;
1022         default:
1023                 return -EINVAL;
1024         }
1025 
1026         snd_soc_write(codec, WM8753_PCM, voice);
1027         snd_soc_write(codec, WM8753_IOCTL, ioctl);
1028         return 0;
1029 }
1030 
1031 static int wm8753_set_dai_clkdiv(struct snd_soc_dai *codec_dai,
1032                 int div_id, int div)
1033 {
1034         struct snd_soc_codec *codec = codec_dai->codec;
1035         u16 reg;
1036 
1037         switch (div_id) {
1038         case WM8753_PCMDIV:
1039                 reg = snd_soc_read(codec, WM8753_CLOCK) & 0x003f;
1040                 snd_soc_write(codec, WM8753_CLOCK, reg | div);
1041                 break;
1042         case WM8753_BCLKDIV:
1043                 reg = snd_soc_read(codec, WM8753_SRATE2) & 0x01c7;
1044                 snd_soc_write(codec, WM8753_SRATE2, reg | div);
1045                 break;
1046         case WM8753_VXCLKDIV:
1047                 reg = snd_soc_read(codec, WM8753_SRATE2) & 0x003f;
1048                 snd_soc_write(codec, WM8753_SRATE2, reg | div);
1049                 break;
1050         default:
1051                 return -EINVAL;
1052         }
1053         return 0;
1054 }
1055 
1056 /*
1057  * Set's HiFi DAC format.
1058  */
1059 static int wm8753_hdac_set_dai_fmt(struct snd_soc_codec *codec,
1060                 unsigned int fmt)
1061 {
1062         u16 hifi = snd_soc_read(codec, WM8753_HIFI) & 0x01e0;
1063 
1064         /* interface format */
1065         switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
1066         case SND_SOC_DAIFMT_I2S:
1067                 hifi |= 0x0002;
1068                 break;
1069         case SND_SOC_DAIFMT_RIGHT_J:
1070                 break;
1071         case SND_SOC_DAIFMT_LEFT_J:
1072                 hifi |= 0x0001;
1073                 break;
1074         case SND_SOC_DAIFMT_DSP_A:
1075                 hifi |= 0x0003;
1076                 break;
1077         case SND_SOC_DAIFMT_DSP_B:
1078                 hifi |= 0x0013;
1079                 break;
1080         default:
1081                 return -EINVAL;
1082         }
1083 
1084         snd_soc_write(codec, WM8753_HIFI, hifi);
1085         return 0;
1086 }
1087 
1088 /*
1089  * Set's I2S DAI format.
1090  */
1091 static int wm8753_i2s_set_dai_fmt(struct snd_soc_codec *codec,
1092                 unsigned int fmt)
1093 {
1094         u16 ioctl, hifi;
1095 
1096         hifi = snd_soc_read(codec, WM8753_HIFI) & 0x011f;
1097         ioctl = snd_soc_read(codec, WM8753_IOCTL) & 0x00ae;
1098 
1099         /* set master/slave audio interface */
1100         switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
1101         case SND_SOC_DAIFMT_CBS_CFS:
1102                 break;
1103         case SND_SOC_DAIFMT_CBM_CFM:
1104                 ioctl |= 0x1;
1105         case SND_SOC_DAIFMT_CBM_CFS:
1106                 hifi |= 0x0040;
1107                 break;
1108         default:
1109                 return -EINVAL;
1110         }
1111 
1112         /* clock inversion */
1113         switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
1114         case SND_SOC_DAIFMT_DSP_A:
1115         case SND_SOC_DAIFMT_DSP_B:
1116                 /* frame inversion not valid for DSP modes */
1117                 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
1118                 case SND_SOC_DAIFMT_NB_NF:
1119                         break;
1120                 case SND_SOC_DAIFMT_IB_NF:
1121                         hifi |= 0x0080;
1122                         break;
1123                 default:
1124                         return -EINVAL;
1125                 }
1126                 break;
1127         case SND_SOC_DAIFMT_I2S:
1128         case SND_SOC_DAIFMT_RIGHT_J:
1129         case SND_SOC_DAIFMT_LEFT_J:
1130                 hifi &= ~0x0010;
1131                 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
1132                 case SND_SOC_DAIFMT_NB_NF:
1133                         break;
1134                 case SND_SOC_DAIFMT_IB_IF:
1135                         hifi |= 0x0090;
1136                         break;
1137                 case SND_SOC_DAIFMT_IB_NF:
1138                         hifi |= 0x0080;
1139                         break;
1140                 case SND_SOC_DAIFMT_NB_IF:
1141                         hifi |= 0x0010;
1142                         break;
1143                 default:
1144                         return -EINVAL;
1145                 }
1146                 break;
1147         default:
1148                 return -EINVAL;
1149         }
1150 
1151         snd_soc_write(codec, WM8753_HIFI, hifi);
1152         snd_soc_write(codec, WM8753_IOCTL, ioctl);
1153         return 0;
1154 }
1155 
1156 /*
1157  * Set PCM DAI bit size and sample rate.
1158  */
1159 static int wm8753_i2s_hw_params(struct snd_pcm_substream *substream,
1160                                 struct snd_pcm_hw_params *params,
1161                                 struct snd_soc_dai *dai)
1162 {
1163         struct snd_soc_codec *codec = dai->codec;
1164         struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);
1165         u16 srate = snd_soc_read(codec, WM8753_SRATE1) & 0x01c0;
1166         u16 hifi = snd_soc_read(codec, WM8753_HIFI) & 0x01f3;
1167         int coeff;
1168 
1169         /* is digital filter coefficient valid ? */
1170         coeff = get_coeff(wm8753->sysclk, params_rate(params));
1171         if (coeff < 0) {
1172                 printk(KERN_ERR "wm8753 invalid MCLK or rate\n");
1173                 return coeff;
1174         }
1175         snd_soc_write(codec, WM8753_SRATE1, srate | (coeff_div[coeff].sr << 1) |
1176                 coeff_div[coeff].usb);
1177 
1178         /* bit size */
1179         switch (params_width(params)) {
1180         case 16:
1181                 break;
1182         case 20:
1183                 hifi |= 0x0004;
1184                 break;
1185         case 24:
1186                 hifi |= 0x0008;
1187                 break;
1188         case 32:
1189                 hifi |= 0x000c;
1190                 break;
1191         }
1192 
1193         snd_soc_write(codec, WM8753_HIFI, hifi);
1194         return 0;
1195 }
1196 
1197 static int wm8753_mode1v_set_dai_fmt(struct snd_soc_codec *codec,
1198                 unsigned int fmt)
1199 {
1200         u16 clock;
1201 
1202         /* set clk source as pcmclk */
1203         clock = snd_soc_read(codec, WM8753_CLOCK) & 0xfffb;
1204         snd_soc_write(codec, WM8753_CLOCK, clock);
1205 
1206         return wm8753_vdac_adc_set_dai_fmt(codec, fmt);
1207 }
1208 
1209 static int wm8753_mode1h_set_dai_fmt(struct snd_soc_codec *codec,
1210                 unsigned int fmt)
1211 {
1212         return wm8753_hdac_set_dai_fmt(codec, fmt);
1213 }
1214 
1215 static int wm8753_mode2_set_dai_fmt(struct snd_soc_codec *codec,
1216                 unsigned int fmt)
1217 {
1218         u16 clock;
1219 
1220         /* set clk source as pcmclk */
1221         clock = snd_soc_read(codec, WM8753_CLOCK) & 0xfffb;
1222         snd_soc_write(codec, WM8753_CLOCK, clock);
1223 
1224         return wm8753_vdac_adc_set_dai_fmt(codec, fmt);
1225 }
1226 
1227 static int wm8753_mode3_4_set_dai_fmt(struct snd_soc_codec *codec,
1228                 unsigned int fmt)
1229 {
1230         u16 clock;
1231 
1232         /* set clk source as mclk */
1233         clock = snd_soc_read(codec, WM8753_CLOCK) & 0xfffb;
1234         snd_soc_write(codec, WM8753_CLOCK, clock | 0x4);
1235 
1236         if (wm8753_hdac_set_dai_fmt(codec, fmt) < 0)
1237                 return -EINVAL;
1238         return wm8753_vdac_adc_set_dai_fmt(codec, fmt);
1239 }
1240 
1241 static int wm8753_hifi_write_dai_fmt(struct snd_soc_codec *codec,
1242                 unsigned int fmt)
1243 {
1244         struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);
1245         int ret = 0;
1246 
1247         switch (wm8753->dai_func) {
1248         case 0:
1249                 ret = wm8753_mode1h_set_dai_fmt(codec, fmt);
1250                 break;
1251         case 1:
1252                 ret = wm8753_mode2_set_dai_fmt(codec, fmt);
1253                 break;
1254         case 2:
1255         case 3:
1256                 ret = wm8753_mode3_4_set_dai_fmt(codec, fmt);
1257                 break;
1258         default:
1259                  break;
1260         }
1261         if (ret)
1262                 return ret;
1263 
1264         return wm8753_i2s_set_dai_fmt(codec, fmt);
1265 }
1266 
1267 static int wm8753_hifi_set_dai_fmt(struct snd_soc_dai *codec_dai,
1268                 unsigned int fmt)
1269 {
1270         struct snd_soc_codec *codec = codec_dai->codec;
1271         struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);
1272 
1273         wm8753->hifi_fmt = fmt;
1274 
1275         return wm8753_hifi_write_dai_fmt(codec, fmt);
1276 };
1277 
1278 static int wm8753_voice_write_dai_fmt(struct snd_soc_codec *codec,
1279                 unsigned int fmt)
1280 {
1281         struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);
1282         int ret = 0;
1283 
1284         if (wm8753->dai_func != 0)
1285                 return 0;
1286 
1287         ret = wm8753_mode1v_set_dai_fmt(codec, fmt);
1288         if (ret)
1289                 return ret;
1290         ret = wm8753_pcm_set_dai_fmt(codec, fmt);
1291         if (ret)
1292                 return ret;
1293 
1294         return 0;
1295 };
1296 
1297 static int wm8753_voice_set_dai_fmt(struct snd_soc_dai *codec_dai,
1298                 unsigned int fmt)
1299 {
1300         struct snd_soc_codec *codec = codec_dai->codec;
1301         struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);
1302 
1303         wm8753->voice_fmt = fmt;
1304 
1305         return wm8753_voice_write_dai_fmt(codec, fmt);
1306 };
1307 
1308 static int wm8753_mute(struct snd_soc_dai *dai, int mute)
1309 {
1310         struct snd_soc_codec *codec = dai->codec;
1311         u16 mute_reg = snd_soc_read(codec, WM8753_DAC) & 0xfff7;
1312         struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);
1313 
1314         /* the digital mute covers the HiFi and Voice DAC's on the WM8753.
1315          * make sure we check if they are not both active when we mute */
1316         if (mute && wm8753->dai_func == 1) {
1317                 if (!snd_soc_codec_is_active(codec))
1318                         snd_soc_write(codec, WM8753_DAC, mute_reg | 0x8);
1319         } else {
1320                 if (mute)
1321                         snd_soc_write(codec, WM8753_DAC, mute_reg | 0x8);
1322                 else
1323                         snd_soc_write(codec, WM8753_DAC, mute_reg);
1324         }
1325 
1326         return 0;
1327 }
1328 
1329 static int wm8753_set_bias_level(struct snd_soc_codec *codec,
1330                                  enum snd_soc_bias_level level)
1331 {
1332         u16 pwr_reg = snd_soc_read(codec, WM8753_PWR1) & 0xfe3e;
1333 
1334         switch (level) {
1335         case SND_SOC_BIAS_ON:
1336                 /* set vmid to 50k and unmute dac */
1337                 snd_soc_write(codec, WM8753_PWR1, pwr_reg | 0x00c0);
1338                 break;
1339         case SND_SOC_BIAS_PREPARE:
1340                 /* set vmid to 5k for quick power up */
1341                 snd_soc_write(codec, WM8753_PWR1, pwr_reg | 0x01c1);
1342                 break;
1343         case SND_SOC_BIAS_STANDBY:
1344                 /* mute dac and set vmid to 500k, enable VREF */
1345                 snd_soc_write(codec, WM8753_PWR1, pwr_reg | 0x0141);
1346                 break;
1347         case SND_SOC_BIAS_OFF:
1348                 snd_soc_write(codec, WM8753_PWR1, 0x0001);
1349                 break;
1350         }
1351         codec->dapm.bias_level = level;
1352         return 0;
1353 }
1354 
1355 #define WM8753_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\
1356                 SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 |\
1357                 SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 |\
1358                 SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000)
1359 
1360 #define WM8753_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
1361         SNDRV_PCM_FMTBIT_S24_LE)
1362 
1363 /*
1364  * The WM8753 supports up to 4 different and mutually exclusive DAI
1365  * configurations. This gives 2 PCM's available for use, hifi and voice.
1366  * NOTE: The Voice PCM cannot play or capture audio to the CPU as it's DAI
1367  * is connected between the wm8753 and a BT codec or GSM modem.
1368  *
1369  * 1. Voice over PCM DAI - HIFI DAC over HIFI DAI
1370  * 2. Voice over HIFI DAI - HIFI disabled
1371  * 3. Voice disabled - HIFI over HIFI
1372  * 4. Voice disabled - HIFI over HIFI, uses voice DAI LRC for capture
1373  */
1374 static const struct snd_soc_dai_ops wm8753_dai_ops_hifi_mode = {
1375         .hw_params      = wm8753_i2s_hw_params,
1376         .digital_mute   = wm8753_mute,
1377         .set_fmt        = wm8753_hifi_set_dai_fmt,
1378         .set_clkdiv     = wm8753_set_dai_clkdiv,
1379         .set_pll        = wm8753_set_dai_pll,
1380         .set_sysclk     = wm8753_set_dai_sysclk,
1381 };
1382 
1383 static const struct snd_soc_dai_ops wm8753_dai_ops_voice_mode = {
1384         .hw_params      = wm8753_pcm_hw_params,
1385         .digital_mute   = wm8753_mute,
1386         .set_fmt        = wm8753_voice_set_dai_fmt,
1387         .set_clkdiv     = wm8753_set_dai_clkdiv,
1388         .set_pll        = wm8753_set_dai_pll,
1389         .set_sysclk     = wm8753_set_dai_sysclk,
1390 };
1391 
1392 static struct snd_soc_dai_driver wm8753_dai[] = {
1393 /* DAI HiFi mode 1 */
1394 {       .name = "wm8753-hifi",
1395         .playback = {
1396                 .stream_name = "HiFi Playback",
1397                 .channels_min = 1,
1398                 .channels_max = 2,
1399                 .rates = WM8753_RATES,
1400                 .formats = WM8753_FORMATS
1401         },
1402         .capture = { /* dummy for fast DAI switching */
1403                 .stream_name = "Capture",
1404                 .channels_min = 1,
1405                 .channels_max = 2,
1406                 .rates = WM8753_RATES,
1407                 .formats = WM8753_FORMATS
1408         },
1409         .ops = &wm8753_dai_ops_hifi_mode,
1410 },
1411 /* DAI Voice mode 1 */
1412 {       .name = "wm8753-voice",
1413         .playback = {
1414                 .stream_name = "Voice Playback",
1415                 .channels_min = 1,
1416                 .channels_max = 1,
1417                 .rates = WM8753_RATES,
1418                 .formats = WM8753_FORMATS,
1419         },
1420         .capture = {
1421                 .stream_name = "Capture",
1422                 .channels_min = 1,
1423                 .channels_max = 2,
1424                 .rates = WM8753_RATES,
1425                 .formats = WM8753_FORMATS,
1426         },
1427         .ops = &wm8753_dai_ops_voice_mode,
1428 },
1429 };
1430 
1431 static void wm8753_work(struct work_struct *work)
1432 {
1433         struct snd_soc_dapm_context *dapm =
1434                 container_of(work, struct snd_soc_dapm_context,
1435                              delayed_work.work);
1436         struct snd_soc_codec *codec = dapm->codec;
1437         wm8753_set_bias_level(codec, dapm->bias_level);
1438 }
1439 
1440 static int wm8753_suspend(struct snd_soc_codec *codec)
1441 {
1442         wm8753_set_bias_level(codec, SND_SOC_BIAS_OFF);
1443         return 0;
1444 }
1445 
1446 static int wm8753_resume(struct snd_soc_codec *codec)
1447 {
1448         struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);
1449 
1450         regcache_sync(wm8753->regmap);
1451 
1452         wm8753_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
1453 
1454         /* charge wm8753 caps */
1455         if (codec->dapm.suspend_bias_level == SND_SOC_BIAS_ON) {
1456                 wm8753_set_bias_level(codec, SND_SOC_BIAS_PREPARE);
1457                 codec->dapm.bias_level = SND_SOC_BIAS_ON;
1458                 queue_delayed_work(system_power_efficient_wq,
1459                                    &codec->dapm.delayed_work,
1460                                    msecs_to_jiffies(caps_charge));
1461         }
1462 
1463         return 0;
1464 }
1465 
1466 static int wm8753_probe(struct snd_soc_codec *codec)
1467 {
1468         struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);
1469         int ret;
1470 
1471         INIT_DELAYED_WORK(&codec->dapm.delayed_work, wm8753_work);
1472 
1473         ret = wm8753_reset(codec);
1474         if (ret < 0) {
1475                 dev_err(codec->dev, "Failed to issue reset: %d\n", ret);
1476                 return ret;
1477         }
1478 
1479         wm8753_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
1480         wm8753->dai_func = 0;
1481 
1482         /* charge output caps */
1483         wm8753_set_bias_level(codec, SND_SOC_BIAS_PREPARE);
1484         schedule_delayed_work(&codec->dapm.delayed_work,
1485                               msecs_to_jiffies(caps_charge));
1486 
1487         /* set the update bits */
1488         snd_soc_update_bits(codec, WM8753_LDAC, 0x0100, 0x0100);
1489         snd_soc_update_bits(codec, WM8753_RDAC, 0x0100, 0x0100);
1490         snd_soc_update_bits(codec, WM8753_LADC, 0x0100, 0x0100);
1491         snd_soc_update_bits(codec, WM8753_RADC, 0x0100, 0x0100);
1492         snd_soc_update_bits(codec, WM8753_LOUT1V, 0x0100, 0x0100);
1493         snd_soc_update_bits(codec, WM8753_ROUT1V, 0x0100, 0x0100);
1494         snd_soc_update_bits(codec, WM8753_LOUT2V, 0x0100, 0x0100);
1495         snd_soc_update_bits(codec, WM8753_ROUT2V, 0x0100, 0x0100);
1496         snd_soc_update_bits(codec, WM8753_LINVOL, 0x0100, 0x0100);
1497         snd_soc_update_bits(codec, WM8753_RINVOL, 0x0100, 0x0100);
1498 
1499         return 0;
1500 }
1501 
1502 /* power down chip */
1503 static int wm8753_remove(struct snd_soc_codec *codec)
1504 {
1505         flush_delayed_work(&codec->dapm.delayed_work);
1506         wm8753_set_bias_level(codec, SND_SOC_BIAS_OFF);
1507 
1508         return 0;
1509 }
1510 
1511 static struct snd_soc_codec_driver soc_codec_dev_wm8753 = {
1512         .probe =        wm8753_probe,
1513         .remove =       wm8753_remove,
1514         .suspend =      wm8753_suspend,
1515         .resume =       wm8753_resume,
1516         .set_bias_level = wm8753_set_bias_level,
1517 
1518         .controls = wm8753_snd_controls,
1519         .num_controls = ARRAY_SIZE(wm8753_snd_controls),
1520         .dapm_widgets = wm8753_dapm_widgets,
1521         .num_dapm_widgets = ARRAY_SIZE(wm8753_dapm_widgets),
1522         .dapm_routes = wm8753_dapm_routes,
1523         .num_dapm_routes = ARRAY_SIZE(wm8753_dapm_routes),
1524 };
1525 
1526 static const struct of_device_id wm8753_of_match[] = {
1527         { .compatible = "wlf,wm8753", },
1528         { }
1529 };
1530 MODULE_DEVICE_TABLE(of, wm8753_of_match);
1531 
1532 static const struct regmap_config wm8753_regmap = {
1533         .reg_bits = 7,
1534         .val_bits = 9,
1535 
1536         .max_register = WM8753_ADCTL2,
1537         .writeable_reg = wm8753_writeable,
1538         .volatile_reg = wm8753_volatile,
1539 
1540         .cache_type = REGCACHE_RBTREE,
1541         .reg_defaults = wm8753_reg_defaults,
1542         .num_reg_defaults = ARRAY_SIZE(wm8753_reg_defaults),
1543 };
1544 
1545 #if defined(CONFIG_SPI_MASTER)
1546 static int wm8753_spi_probe(struct spi_device *spi)
1547 {
1548         struct wm8753_priv *wm8753;
1549         int ret;
1550 
1551         wm8753 = devm_kzalloc(&spi->dev, sizeof(struct wm8753_priv),
1552                               GFP_KERNEL);
1553         if (wm8753 == NULL)
1554                 return -ENOMEM;
1555 
1556         spi_set_drvdata(spi, wm8753);
1557 
1558         wm8753->regmap = devm_regmap_init_spi(spi, &wm8753_regmap);
1559         if (IS_ERR(wm8753->regmap)) {
1560                 ret = PTR_ERR(wm8753->regmap);
1561                 dev_err(&spi->dev, "Failed to allocate register map: %d\n",
1562                         ret);
1563                 return ret;
1564         }
1565 
1566         ret = snd_soc_register_codec(&spi->dev, &soc_codec_dev_wm8753,
1567                                      wm8753_dai, ARRAY_SIZE(wm8753_dai));
1568         if (ret != 0)
1569                 dev_err(&spi->dev, "Failed to register CODEC: %d\n", ret);
1570 
1571         return ret;
1572 }
1573 
1574 static int wm8753_spi_remove(struct spi_device *spi)
1575 {
1576         snd_soc_unregister_codec(&spi->dev);
1577         return 0;
1578 }
1579 
1580 static struct spi_driver wm8753_spi_driver = {
1581         .driver = {
1582                 .name   = "wm8753",
1583                 .owner  = THIS_MODULE,
1584                 .of_match_table = wm8753_of_match,
1585         },
1586         .probe          = wm8753_spi_probe,
1587         .remove         = wm8753_spi_remove,
1588 };
1589 #endif /* CONFIG_SPI_MASTER */
1590 
1591 #if IS_ENABLED(CONFIG_I2C)
1592 static int wm8753_i2c_probe(struct i2c_client *i2c,
1593                             const struct i2c_device_id *id)
1594 {
1595         struct wm8753_priv *wm8753;
1596         int ret;
1597 
1598         wm8753 = devm_kzalloc(&i2c->dev, sizeof(struct wm8753_priv),
1599                               GFP_KERNEL);
1600         if (wm8753 == NULL)
1601                 return -ENOMEM;
1602 
1603         i2c_set_clientdata(i2c, wm8753);
1604 
1605         wm8753->regmap = devm_regmap_init_i2c(i2c, &wm8753_regmap);
1606         if (IS_ERR(wm8753->regmap)) {
1607                 ret = PTR_ERR(wm8753->regmap);
1608                 dev_err(&i2c->dev, "Failed to allocate register map: %d\n",
1609                         ret);
1610                 return ret;
1611         }
1612 
1613         ret = snd_soc_register_codec(&i2c->dev, &soc_codec_dev_wm8753,
1614                                      wm8753_dai, ARRAY_SIZE(wm8753_dai));
1615         if (ret != 0)
1616                 dev_err(&i2c->dev, "Failed to register CODEC: %d\n", ret);
1617 
1618         return ret;
1619 }
1620 
1621 static int wm8753_i2c_remove(struct i2c_client *client)
1622 {
1623         snd_soc_unregister_codec(&client->dev);
1624         return 0;
1625 }
1626 
1627 static const struct i2c_device_id wm8753_i2c_id[] = {
1628         { "wm8753", 0 },
1629         { }
1630 };
1631 MODULE_DEVICE_TABLE(i2c, wm8753_i2c_id);
1632 
1633 static struct i2c_driver wm8753_i2c_driver = {
1634         .driver = {
1635                 .name = "wm8753",
1636                 .owner = THIS_MODULE,
1637                 .of_match_table = wm8753_of_match,
1638         },
1639         .probe =    wm8753_i2c_probe,
1640         .remove =   wm8753_i2c_remove,
1641         .id_table = wm8753_i2c_id,
1642 };
1643 #endif
1644 
1645 static int __init wm8753_modinit(void)
1646 {
1647         int ret = 0;
1648 #if IS_ENABLED(CONFIG_I2C)
1649         ret = i2c_add_driver(&wm8753_i2c_driver);
1650         if (ret != 0) {
1651                 printk(KERN_ERR "Failed to register wm8753 I2C driver: %d\n",
1652                        ret);
1653         }
1654 #endif
1655 #if defined(CONFIG_SPI_MASTER)
1656         ret = spi_register_driver(&wm8753_spi_driver);
1657         if (ret != 0) {
1658                 printk(KERN_ERR "Failed to register wm8753 SPI driver: %d\n",
1659                        ret);
1660         }
1661 #endif
1662         return ret;
1663 }
1664 module_init(wm8753_modinit);
1665 
1666 static void __exit wm8753_exit(void)
1667 {
1668 #if IS_ENABLED(CONFIG_I2C)
1669         i2c_del_driver(&wm8753_i2c_driver);
1670 #endif
1671 #if defined(CONFIG_SPI_MASTER)
1672         spi_unregister_driver(&wm8753_spi_driver);
1673 #endif
1674 }
1675 module_exit(wm8753_exit);
1676 
1677 MODULE_DESCRIPTION("ASoC WM8753 driver");
1678 MODULE_AUTHOR("Liam Girdwood");
1679 MODULE_LICENSE("GPL");
1680 

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