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Merge remote-tracking branch 'ocfs2/linux-next'
[linux-2.6/next.git] / sound / soc / codecs / wm8753.c
blobffa2ffe5ec11aa92ef6c4e55073aae275dc169cc
1 /*
2 * wm8753.c -- WM8753 ALSA Soc Audio driver
3 *
4 * Copyright 2003 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/platform_device.h>
42 #include <linux/spi/spi.h>
43 #include <linux/slab.h>
44 #include <sound/core.h>
45 #include <sound/pcm.h>
46 #include <sound/pcm_params.h>
47 #include <sound/soc.h>
48 #include <sound/initval.h>
49 #include <sound/tlv.h>
50 #include <asm/div64.h>
51
52 #include "wm8753.h"
53
54 static int caps_charge = 2000;
55 module_param(caps_charge, int, 0);
56 MODULE_PARM_DESC(caps_charge, "WM8753 cap charge time (msecs)");
57
58 static int wm8753_hifi_write_dai_fmt(struct snd_soc_codec *codec,
59 unsigned int fmt);
60 static int wm8753_voice_write_dai_fmt(struct snd_soc_codec *codec,
61 unsigned int fmt);
62
63 /*
64 * wm8753 register cache
65 * We can't read the WM8753 register space when we
66 * are using 2 wire for device control, so we cache them instead.
67 */
68 static const u16 wm8753_reg[] = {
69 0x0000, 0x0008, 0x0000, 0x000a,
70 0x000a, 0x0033, 0x0000, 0x0007,
71 0x00ff, 0x00ff, 0x000f, 0x000f,
72 0x007b, 0x0000, 0x0032, 0x0000,
73 0x00c3, 0x00c3, 0x00c0, 0x0000,
74 0x0000, 0x0000, 0x0000, 0x0000,
75 0x0000, 0x0000, 0x0000, 0x0000,
76 0x0000, 0x0000, 0x0000, 0x0000,
77 0x0055, 0x0005, 0x0050, 0x0055,
78 0x0050, 0x0055, 0x0050, 0x0055,
79 0x0079, 0x0079, 0x0079, 0x0079,
80 0x0079, 0x0000, 0x0000, 0x0000,
81 0x0000, 0x0097, 0x0097, 0x0000,
82 0x0004, 0x0000, 0x0083, 0x0024,
83 0x01ba, 0x0000, 0x0083, 0x0024,
84 0x01ba, 0x0000, 0x0000, 0x0000
85 };
86
87 /* codec private data */
88 struct wm8753_priv {
89 enum snd_soc_control_type control_type;
90 unsigned int sysclk;
91 unsigned int pcmclk;
92
93 unsigned int voice_fmt;
94 unsigned int hifi_fmt;
95
96 int dai_func;
97 };
98
99 #define wm8753_reset(c) snd_soc_write(c, WM8753_RESET, 0)
100
101 /*
102 * WM8753 Controls
103 */
104 static const char *wm8753_base[] = {"Linear Control", "Adaptive Boost"};
105 static const char *wm8753_base_filter[] =
106 {"130Hz @ 48kHz", "200Hz @ 48kHz", "100Hz @ 16kHz", "400Hz @ 48kHz",
107 "100Hz @ 8kHz", "200Hz @ 8kHz"};
108 static const char *wm8753_treble[] = {"8kHz", "4kHz"};
109 static const char *wm8753_alc_func[] = {"Off", "Right", "Left", "Stereo"};
110 static const char *wm8753_ng_type[] = {"Constant PGA Gain", "Mute ADC Output"};
111 static const char *wm8753_3d_func[] = {"Capture", "Playback"};
112 static const char *wm8753_3d_uc[] = {"2.2kHz", "1.5kHz"};
113 static const char *wm8753_3d_lc[] = {"200Hz", "500Hz"};
114 static const char *wm8753_deemp[] = {"None", "32kHz", "44.1kHz", "48kHz"};
115 static const char *wm8753_mono_mix[] = {"Stereo", "Left", "Right", "Mono"};
116 static const char *wm8753_dac_phase[] = {"Non Inverted", "Inverted"};
117 static const char *wm8753_line_mix[] = {"Line 1 + 2", "Line 1 - 2",
118 "Line 1", "Line 2"};
119 static const char *wm8753_mono_mux[] = {"Line Mix", "Rx Mix"};
120 static const char *wm8753_right_mux[] = {"Line 2", "Rx Mix"};
121 static const char *wm8753_left_mux[] = {"Line 1", "Rx Mix"};
122 static const char *wm8753_rxmsel[] = {"RXP - RXN", "RXP + RXN", "RXP", "RXN"};
123 static const char *wm8753_sidetone_mux[] = {"Left PGA", "Mic 1", "Mic 2",
124 "Right PGA"};
125 static const char *wm8753_mono2_src[] = {"Inverted Mono 1", "Left", "Right",
126 "Left + Right"};
127 static const char *wm8753_out3[] = {"VREF", "ROUT2", "Left + Right"};
128 static const char *wm8753_out4[] = {"VREF", "Capture ST", "LOUT2"};
129 static const char *wm8753_radcsel[] = {"PGA", "Line or RXP-RXN", "Sidetone"};
130 static const char *wm8753_ladcsel[] = {"PGA", "Line or RXP-RXN", "Line"};
131 static const char *wm8753_mono_adc[] = {"Stereo", "Analogue Mix Left",
132 "Analogue Mix Right", "Digital Mono Mix"};
133 static const char *wm8753_adc_hp[] = {"3.4Hz @ 48kHz", "82Hz @ 16k",
134 "82Hz @ 8kHz", "170Hz @ 8kHz"};
135 static const char *wm8753_adc_filter[] = {"HiFi", "Voice"};
136 static const char *wm8753_mic_sel[] = {"Mic 1", "Mic 2", "Mic 3"};
137 static const char *wm8753_dai_mode[] = {"DAI 0", "DAI 1", "DAI 2", "DAI 3"};
138 static const char *wm8753_dat_sel[] = {"Stereo", "Left ADC", "Right ADC",
139 "Channel Swap"};
140 static const char *wm8753_rout2_phase[] = {"Non Inverted", "Inverted"};
141
142 static const struct soc_enum wm8753_enum[] = {
143 SOC_ENUM_SINGLE(WM8753_BASS, 7, 2, wm8753_base),
144 SOC_ENUM_SINGLE(WM8753_BASS, 4, 6, wm8753_base_filter),
145 SOC_ENUM_SINGLE(WM8753_TREBLE, 6, 2, wm8753_treble),
146 SOC_ENUM_SINGLE(WM8753_ALC1, 7, 4, wm8753_alc_func),
147 SOC_ENUM_SINGLE(WM8753_NGATE, 1, 2, wm8753_ng_type),
148 SOC_ENUM_SINGLE(WM8753_3D, 7, 2, wm8753_3d_func),
149 SOC_ENUM_SINGLE(WM8753_3D, 6, 2, wm8753_3d_uc),
150 SOC_ENUM_SINGLE(WM8753_3D, 5, 2, wm8753_3d_lc),
151 SOC_ENUM_SINGLE(WM8753_DAC, 1, 4, wm8753_deemp),
152 SOC_ENUM_SINGLE(WM8753_DAC, 4, 4, wm8753_mono_mix),
153 SOC_ENUM_SINGLE(WM8753_DAC, 6, 2, wm8753_dac_phase),
154 SOC_ENUM_SINGLE(WM8753_INCTL1, 3, 4, wm8753_line_mix),
155 SOC_ENUM_SINGLE(WM8753_INCTL1, 2, 2, wm8753_mono_mux),
156 SOC_ENUM_SINGLE(WM8753_INCTL1, 1, 2, wm8753_right_mux),
157 SOC_ENUM_SINGLE(WM8753_INCTL1, 0, 2, wm8753_left_mux),
158 SOC_ENUM_SINGLE(WM8753_INCTL2, 6, 4, wm8753_rxmsel),
159 SOC_ENUM_SINGLE(WM8753_INCTL2, 4, 4, wm8753_sidetone_mux),
160 SOC_ENUM_SINGLE(WM8753_OUTCTL, 7, 4, wm8753_mono2_src),
161 SOC_ENUM_SINGLE(WM8753_OUTCTL, 0, 3, wm8753_out3),
162 SOC_ENUM_SINGLE(WM8753_ADCTL2, 7, 3, wm8753_out4),
163 SOC_ENUM_SINGLE(WM8753_ADCIN, 2, 3, wm8753_radcsel),
164 SOC_ENUM_SINGLE(WM8753_ADCIN, 0, 3, wm8753_ladcsel),
165 SOC_ENUM_SINGLE(WM8753_ADCIN, 4, 4, wm8753_mono_adc),
166 SOC_ENUM_SINGLE(WM8753_ADC, 2, 4, wm8753_adc_hp),
167 SOC_ENUM_SINGLE(WM8753_ADC, 4, 2, wm8753_adc_filter),
168 SOC_ENUM_SINGLE(WM8753_MICBIAS, 6, 3, wm8753_mic_sel),
169 SOC_ENUM_SINGLE(WM8753_IOCTL, 2, 4, wm8753_dai_mode),
170 SOC_ENUM_SINGLE(WM8753_ADC, 7, 4, wm8753_dat_sel),
171 SOC_ENUM_SINGLE(WM8753_OUTCTL, 2, 2, wm8753_rout2_phase),
172 };
173
174
175 static int wm8753_get_dai(struct snd_kcontrol *kcontrol,
176 struct snd_ctl_elem_value *ucontrol)
177 {
178 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
179 struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);
180
181 ucontrol->value.integer.value[0] = wm8753->dai_func;
182 return 0;
183 }
184
185 static int wm8753_set_dai(struct snd_kcontrol *kcontrol,
186 struct snd_ctl_elem_value *ucontrol)
187 {
188 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
189 struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);
190 u16 ioctl;
191
192 if (codec->active)
193 return -EBUSY;
194
195 ioctl = snd_soc_read(codec, WM8753_IOCTL);
196
197 wm8753->dai_func = ucontrol->value.integer.value[0];
198
199 if (((ioctl >> 2) & 0x3) == wm8753->dai_func)
200 return 1;
201
202 ioctl = (ioctl & 0x1f3) | (wm8753->dai_func << 2);
203 snd_soc_write(codec, WM8753_IOCTL, ioctl);
204
205
206 wm8753_hifi_write_dai_fmt(codec, wm8753->hifi_fmt);
207 wm8753_voice_write_dai_fmt(codec, wm8753->voice_fmt);
208
209 return 1;
210 }
211
212 static const DECLARE_TLV_DB_SCALE(rec_mix_tlv, -1500, 300, 0);
213 static const DECLARE_TLV_DB_SCALE(mic_preamp_tlv, 1200, 600, 0);
214 static const DECLARE_TLV_DB_SCALE(adc_tlv, -9750, 50, 1);
215 static const DECLARE_TLV_DB_SCALE(dac_tlv, -12750, 50, 1);
216 static const unsigned int out_tlv[] = {
217 TLV_DB_RANGE_HEAD(2),
218 /* 0000000 - 0101111 = "Analogue mute" */
219 0, 48, TLV_DB_SCALE_ITEM(-25500, 0, 0),
220 48, 127, TLV_DB_SCALE_ITEM(-7300, 100, 0),
221 };
222 static const DECLARE_TLV_DB_SCALE(mix_tlv, -1500, 300, 0);
223 static const DECLARE_TLV_DB_SCALE(voice_mix_tlv, -1200, 300, 0);
224 static const DECLARE_TLV_DB_SCALE(pga_tlv, -1725, 75, 0);
225
226 static const struct snd_kcontrol_new wm8753_snd_controls[] = {
227 SOC_DOUBLE_R_TLV("PCM Volume", WM8753_LDAC, WM8753_RDAC, 0, 255, 0, dac_tlv),
228
229 SOC_DOUBLE_R_TLV("ADC Capture Volume", WM8753_LADC, WM8753_RADC, 0, 255, 0,
230 adc_tlv),
231
232 SOC_DOUBLE_R_TLV("Headphone Playback Volume", WM8753_LOUT1V, WM8753_ROUT1V,
233 0, 127, 0, out_tlv),
234 SOC_DOUBLE_R_TLV("Speaker Playback Volume", WM8753_LOUT2V, WM8753_ROUT2V, 0,
235 127, 0, out_tlv),
236
237 SOC_SINGLE_TLV("Mono Playback Volume", WM8753_MOUTV, 0, 127, 0, out_tlv),
238
239 SOC_DOUBLE_R_TLV("Bypass Playback Volume", WM8753_LOUTM1, WM8753_ROUTM1, 4, 7,
240 1, mix_tlv),
241 SOC_DOUBLE_R_TLV("Sidetone Playback Volume", WM8753_LOUTM2, WM8753_ROUTM2, 4,
242 7, 1, mix_tlv),
243 SOC_DOUBLE_R_TLV("Voice Playback Volume", WM8753_LOUTM2, WM8753_ROUTM2, 0, 7,
244 1, voice_mix_tlv),
245
246 SOC_DOUBLE_R("Headphone Playback ZC Switch", WM8753_LOUT1V, WM8753_ROUT1V, 7,
247 1, 0),
248 SOC_DOUBLE_R("Speaker Playback ZC Switch", WM8753_LOUT2V, WM8753_ROUT2V, 7,
249 1, 0),
250
251 SOC_SINGLE_TLV("Mono Bypass Playback Volume", WM8753_MOUTM1, 4, 7, 1, mix_tlv),
252 SOC_SINGLE_TLV("Mono Sidetone Playback Volume", WM8753_MOUTM2, 4, 7, 1,
253 mix_tlv),
254 SOC_SINGLE_TLV("Mono Voice Playback Volume", WM8753_MOUTM2, 0, 7, 1,
255 voice_mix_tlv),
256 SOC_SINGLE("Mono Playback ZC Switch", WM8753_MOUTV, 7, 1, 0),
257
258 SOC_ENUM("Bass Boost", wm8753_enum[0]),
259 SOC_ENUM("Bass Filter", wm8753_enum[1]),
260 SOC_SINGLE("Bass Volume", WM8753_BASS, 0, 15, 1),
261
262 SOC_SINGLE("Treble Volume", WM8753_TREBLE, 0, 15, 1),
263 SOC_ENUM("Treble Cut-off", wm8753_enum[2]),
264
265 SOC_DOUBLE_TLV("Sidetone Capture Volume", WM8753_RECMIX1, 0, 4, 7, 1,
266 rec_mix_tlv),
267 SOC_SINGLE_TLV("Voice Sidetone Capture Volume", WM8753_RECMIX2, 0, 7, 1,
268 rec_mix_tlv),
269
270 SOC_DOUBLE_R_TLV("Capture Volume", WM8753_LINVOL, WM8753_RINVOL, 0, 63, 0,
271 pga_tlv),
272 SOC_DOUBLE_R("Capture ZC Switch", WM8753_LINVOL, WM8753_RINVOL, 6, 1, 0),
273 SOC_DOUBLE_R("Capture Switch", WM8753_LINVOL, WM8753_RINVOL, 7, 1, 1),
274
275 SOC_ENUM("Capture Filter Select", wm8753_enum[23]),
276 SOC_ENUM("Capture Filter Cut-off", wm8753_enum[24]),
277 SOC_SINGLE("Capture Filter Switch", WM8753_ADC, 0, 1, 1),
278
279 SOC_SINGLE("ALC Capture Target Volume", WM8753_ALC1, 0, 7, 0),
280 SOC_SINGLE("ALC Capture Max Volume", WM8753_ALC1, 4, 7, 0),
281 SOC_ENUM("ALC Capture Function", wm8753_enum[3]),
282 SOC_SINGLE("ALC Capture ZC Switch", WM8753_ALC2, 8, 1, 0),
283 SOC_SINGLE("ALC Capture Hold Time", WM8753_ALC2, 0, 15, 1),
284 SOC_SINGLE("ALC Capture Decay Time", WM8753_ALC3, 4, 15, 1),
285 SOC_SINGLE("ALC Capture Attack Time", WM8753_ALC3, 0, 15, 0),
286 SOC_SINGLE("ALC Capture NG Threshold", WM8753_NGATE, 3, 31, 0),
287 SOC_ENUM("ALC Capture NG Type", wm8753_enum[4]),
288 SOC_SINGLE("ALC Capture NG Switch", WM8753_NGATE, 0, 1, 0),
289
290 SOC_ENUM("3D Function", wm8753_enum[5]),
291 SOC_ENUM("3D Upper Cut-off", wm8753_enum[6]),
292 SOC_ENUM("3D Lower Cut-off", wm8753_enum[7]),
293 SOC_SINGLE("3D Volume", WM8753_3D, 1, 15, 0),
294 SOC_SINGLE("3D Switch", WM8753_3D, 0, 1, 0),
295
296 SOC_SINGLE("Capture 6dB Attenuate", WM8753_ADCTL1, 2, 1, 0),
297 SOC_SINGLE("Playback 6dB Attenuate", WM8753_ADCTL1, 1, 1, 0),
298
299 SOC_ENUM("De-emphasis", wm8753_enum[8]),
300 SOC_ENUM("Playback Mono Mix", wm8753_enum[9]),
301 SOC_ENUM("Playback Phase", wm8753_enum[10]),
302
303 SOC_SINGLE_TLV("Mic2 Capture Volume", WM8753_INCTL1, 7, 3, 0, mic_preamp_tlv),
304 SOC_SINGLE_TLV("Mic1 Capture Volume", WM8753_INCTL1, 5, 3, 0, mic_preamp_tlv),
305
306 SOC_ENUM_EXT("DAI Mode", wm8753_enum[26], wm8753_get_dai, wm8753_set_dai),
307
308 SOC_ENUM("ADC Data Select", wm8753_enum[27]),
309 SOC_ENUM("ROUT2 Phase", wm8753_enum[28]),
310 };
311
312 /*
313 * _DAPM_ Controls
314 */
315
316 /* Left Mixer */
317 static const struct snd_kcontrol_new wm8753_left_mixer_controls[] = {
318 SOC_DAPM_SINGLE("Voice Playback Switch", WM8753_LOUTM2, 8, 1, 0),
319 SOC_DAPM_SINGLE("Sidetone Playback Switch", WM8753_LOUTM2, 7, 1, 0),
320 SOC_DAPM_SINGLE("Left Playback Switch", WM8753_LOUTM1, 8, 1, 0),
321 SOC_DAPM_SINGLE("Bypass Playback Switch", WM8753_LOUTM1, 7, 1, 0),
322 };
323
324 /* Right mixer */
325 static const struct snd_kcontrol_new wm8753_right_mixer_controls[] = {
326 SOC_DAPM_SINGLE("Voice Playback Switch", WM8753_ROUTM2, 8, 1, 0),
327 SOC_DAPM_SINGLE("Sidetone Playback Switch", WM8753_ROUTM2, 7, 1, 0),
328 SOC_DAPM_SINGLE("Right Playback Switch", WM8753_ROUTM1, 8, 1, 0),
329 SOC_DAPM_SINGLE("Bypass Playback Switch", WM8753_ROUTM1, 7, 1, 0),
330 };
331
332 /* Mono mixer */
333 static const struct snd_kcontrol_new wm8753_mono_mixer_controls[] = {
334 SOC_DAPM_SINGLE("Left Playback Switch", WM8753_MOUTM1, 8, 1, 0),
335 SOC_DAPM_SINGLE("Right Playback Switch", WM8753_MOUTM2, 8, 1, 0),
336 SOC_DAPM_SINGLE("Voice Playback Switch", WM8753_MOUTM2, 3, 1, 0),
337 SOC_DAPM_SINGLE("Sidetone Playback Switch", WM8753_MOUTM2, 7, 1, 0),
338 SOC_DAPM_SINGLE("Bypass Playback Switch", WM8753_MOUTM1, 7, 1, 0),
339 };
340
341 /* Mono 2 Mux */
342 static const struct snd_kcontrol_new wm8753_mono2_controls =
343 SOC_DAPM_ENUM("Route", wm8753_enum[17]);
344
345 /* Out 3 Mux */
346 static const struct snd_kcontrol_new wm8753_out3_controls =
347 SOC_DAPM_ENUM("Route", wm8753_enum[18]);
348
349 /* Out 4 Mux */
350 static const struct snd_kcontrol_new wm8753_out4_controls =
351 SOC_DAPM_ENUM("Route", wm8753_enum[19]);
352
353 /* ADC Mono Mix */
354 static const struct snd_kcontrol_new wm8753_adc_mono_controls =
355 SOC_DAPM_ENUM("Route", wm8753_enum[22]);
356
357 /* Record mixer */
358 static const struct snd_kcontrol_new wm8753_record_mixer_controls[] = {
359 SOC_DAPM_SINGLE("Voice Capture Switch", WM8753_RECMIX2, 3, 1, 0),
360 SOC_DAPM_SINGLE("Left Capture Switch", WM8753_RECMIX1, 3, 1, 0),
361 SOC_DAPM_SINGLE("Right Capture Switch", WM8753_RECMIX1, 7, 1, 0),
362 };
363
364 /* Left ADC mux */
365 static const struct snd_kcontrol_new wm8753_adc_left_controls =
366 SOC_DAPM_ENUM("Route", wm8753_enum[21]);
367
368 /* Right ADC mux */
369 static const struct snd_kcontrol_new wm8753_adc_right_controls =
370 SOC_DAPM_ENUM("Route", wm8753_enum[20]);
371
372 /* MIC mux */
373 static const struct snd_kcontrol_new wm8753_mic_mux_controls =
374 SOC_DAPM_ENUM("Route", wm8753_enum[16]);
375
376 /* ALC mixer */
377 static const struct snd_kcontrol_new wm8753_alc_mixer_controls[] = {
378 SOC_DAPM_SINGLE("Line Capture Switch", WM8753_INCTL2, 3, 1, 0),
379 SOC_DAPM_SINGLE("Mic2 Capture Switch", WM8753_INCTL2, 2, 1, 0),
380 SOC_DAPM_SINGLE("Mic1 Capture Switch", WM8753_INCTL2, 1, 1, 0),
381 SOC_DAPM_SINGLE("Rx Capture Switch", WM8753_INCTL2, 0, 1, 0),
382 };
383
384 /* Left Line mux */
385 static const struct snd_kcontrol_new wm8753_line_left_controls =
386 SOC_DAPM_ENUM("Route", wm8753_enum[14]);
387
388 /* Right Line mux */
389 static const struct snd_kcontrol_new wm8753_line_right_controls =
390 SOC_DAPM_ENUM("Route", wm8753_enum[13]);
391
392 /* Mono Line mux */
393 static const struct snd_kcontrol_new wm8753_line_mono_controls =
394 SOC_DAPM_ENUM("Route", wm8753_enum[12]);
395
396 /* Line mux and mixer */
397 static const struct snd_kcontrol_new wm8753_line_mux_mix_controls =
398 SOC_DAPM_ENUM("Route", wm8753_enum[11]);
399
400 /* Rx mux and mixer */
401 static const struct snd_kcontrol_new wm8753_rx_mux_mix_controls =
402 SOC_DAPM_ENUM("Route", wm8753_enum[15]);
403
404 /* Mic Selector Mux */
405 static const struct snd_kcontrol_new wm8753_mic_sel_mux_controls =
406 SOC_DAPM_ENUM("Route", wm8753_enum[25]);
407
408 static const struct snd_soc_dapm_widget wm8753_dapm_widgets[] = {
409 SND_SOC_DAPM_MICBIAS("Mic Bias", WM8753_PWR1, 5, 0),
410 SND_SOC_DAPM_MIXER("Left Mixer", WM8753_PWR4, 0, 0,
411 &wm8753_left_mixer_controls[0], ARRAY_SIZE(wm8753_left_mixer_controls)),
412 SND_SOC_DAPM_PGA("Left Out 1", WM8753_PWR3, 8, 0, NULL, 0),
413 SND_SOC_DAPM_PGA("Left Out 2", WM8753_PWR3, 6, 0, NULL, 0),
414 SND_SOC_DAPM_DAC("Left DAC", "Left HiFi Playback", WM8753_PWR1, 3, 0),
415 SND_SOC_DAPM_OUTPUT("LOUT1"),
416 SND_SOC_DAPM_OUTPUT("LOUT2"),
417 SND_SOC_DAPM_MIXER("Right Mixer", WM8753_PWR4, 1, 0,
418 &wm8753_right_mixer_controls[0], ARRAY_SIZE(wm8753_right_mixer_controls)),
419 SND_SOC_DAPM_PGA("Right Out 1", WM8753_PWR3, 7, 0, NULL, 0),
420 SND_SOC_DAPM_PGA("Right Out 2", WM8753_PWR3, 5, 0, NULL, 0),
421 SND_SOC_DAPM_DAC("Right DAC", "Right HiFi Playback", WM8753_PWR1, 2, 0),
422 SND_SOC_DAPM_OUTPUT("ROUT1"),
423 SND_SOC_DAPM_OUTPUT("ROUT2"),
424 SND_SOC_DAPM_MIXER("Mono Mixer", WM8753_PWR4, 2, 0,
425 &wm8753_mono_mixer_controls[0], ARRAY_SIZE(wm8753_mono_mixer_controls)),
426 SND_SOC_DAPM_PGA("Mono Out 1", WM8753_PWR3, 2, 0, NULL, 0),
427 SND_SOC_DAPM_PGA("Mono Out 2", WM8753_PWR3, 1, 0, NULL, 0),
428 SND_SOC_DAPM_DAC("Voice DAC", "Voice Playback", WM8753_PWR1, 4, 0),
429 SND_SOC_DAPM_OUTPUT("MONO1"),
430 SND_SOC_DAPM_MUX("Mono 2 Mux", SND_SOC_NOPM, 0, 0, &wm8753_mono2_controls),
431 SND_SOC_DAPM_OUTPUT("MONO2"),
432 SND_SOC_DAPM_MIXER("Out3 Left + Right", -1, 0, 0, NULL, 0),
433 SND_SOC_DAPM_MUX("Out3 Mux", SND_SOC_NOPM, 0, 0, &wm8753_out3_controls),
434 SND_SOC_DAPM_PGA("Out 3", WM8753_PWR3, 4, 0, NULL, 0),
435 SND_SOC_DAPM_OUTPUT("OUT3"),
436 SND_SOC_DAPM_MUX("Out4 Mux", SND_SOC_NOPM, 0, 0, &wm8753_out4_controls),
437 SND_SOC_DAPM_PGA("Out 4", WM8753_PWR3, 3, 0, NULL, 0),
438 SND_SOC_DAPM_OUTPUT("OUT4"),
439 SND_SOC_DAPM_MIXER("Playback Mixer", WM8753_PWR4, 3, 0,
440 &wm8753_record_mixer_controls[0],
441 ARRAY_SIZE(wm8753_record_mixer_controls)),
442 SND_SOC_DAPM_ADC("Left ADC", "Left Capture", WM8753_PWR2, 3, 0),
443 SND_SOC_DAPM_ADC("Right ADC", "Right Capture", WM8753_PWR2, 2, 0),
444 SND_SOC_DAPM_MUX("Capture Left Mixer", SND_SOC_NOPM, 0, 0,
445 &wm8753_adc_mono_controls),
446 SND_SOC_DAPM_MUX("Capture Right Mixer", SND_SOC_NOPM, 0, 0,
447 &wm8753_adc_mono_controls),
448 SND_SOC_DAPM_MUX("Capture Left Mux", SND_SOC_NOPM, 0, 0,
449 &wm8753_adc_left_controls),
450 SND_SOC_DAPM_MUX("Capture Right Mux", SND_SOC_NOPM, 0, 0,
451 &wm8753_adc_right_controls),
452 SND_SOC_DAPM_MUX("Mic Sidetone Mux", SND_SOC_NOPM, 0, 0,
453 &wm8753_mic_mux_controls),
454 SND_SOC_DAPM_PGA("Left Capture Volume", WM8753_PWR2, 5, 0, NULL, 0),
455 SND_SOC_DAPM_PGA("Right Capture Volume", WM8753_PWR2, 4, 0, NULL, 0),
456 SND_SOC_DAPM_MIXER("ALC Mixer", WM8753_PWR2, 6, 0,
457 &wm8753_alc_mixer_controls[0], ARRAY_SIZE(wm8753_alc_mixer_controls)),
458 SND_SOC_DAPM_MUX("Line Left Mux", SND_SOC_NOPM, 0, 0,
459 &wm8753_line_left_controls),
460 SND_SOC_DAPM_MUX("Line Right Mux", SND_SOC_NOPM, 0, 0,
461 &wm8753_line_right_controls),
462 SND_SOC_DAPM_MUX("Line Mono Mux", SND_SOC_NOPM, 0, 0,
463 &wm8753_line_mono_controls),
464 SND_SOC_DAPM_MUX("Line Mixer", WM8753_PWR2, 0, 0,
465 &wm8753_line_mux_mix_controls),
466 SND_SOC_DAPM_MUX("Rx Mixer", WM8753_PWR2, 1, 0,
467 &wm8753_rx_mux_mix_controls),
468 SND_SOC_DAPM_PGA("Mic 1 Volume", WM8753_PWR2, 8, 0, NULL, 0),
469 SND_SOC_DAPM_PGA("Mic 2 Volume", WM8753_PWR2, 7, 0, NULL, 0),
470 SND_SOC_DAPM_MUX("Mic Selection Mux", SND_SOC_NOPM, 0, 0,
471 &wm8753_mic_sel_mux_controls),
472 SND_SOC_DAPM_INPUT("LINE1"),
473 SND_SOC_DAPM_INPUT("LINE2"),
474 SND_SOC_DAPM_INPUT("RXP"),
475 SND_SOC_DAPM_INPUT("RXN"),
476 SND_SOC_DAPM_INPUT("ACIN"),
477 SND_SOC_DAPM_OUTPUT("ACOP"),
478 SND_SOC_DAPM_INPUT("MIC1N"),
479 SND_SOC_DAPM_INPUT("MIC1"),
480 SND_SOC_DAPM_INPUT("MIC2N"),
481 SND_SOC_DAPM_INPUT("MIC2"),
482 SND_SOC_DAPM_VMID("VREF"),
483 };
484
485 static const struct snd_soc_dapm_route audio_map[] = {
486 /* left mixer */
487 {"Left Mixer", "Left Playback Switch", "Left DAC"},
488 {"Left Mixer", "Voice Playback Switch", "Voice DAC"},
489 {"Left Mixer", "Sidetone Playback Switch", "Mic Sidetone Mux"},
490 {"Left Mixer", "Bypass Playback Switch", "Line Left Mux"},
491
492 /* right mixer */
493 {"Right Mixer", "Right Playback Switch", "Right DAC"},
494 {"Right Mixer", "Voice Playback Switch", "Voice DAC"},
495 {"Right Mixer", "Sidetone Playback Switch", "Mic Sidetone Mux"},
496 {"Right Mixer", "Bypass Playback Switch", "Line Right Mux"},
497
498 /* mono mixer */
499 {"Mono Mixer", "Voice Playback Switch", "Voice DAC"},
500 {"Mono Mixer", "Left Playback Switch", "Left DAC"},
501 {"Mono Mixer", "Right Playback Switch", "Right DAC"},
502 {"Mono Mixer", "Sidetone Playback Switch", "Mic Sidetone Mux"},
503 {"Mono Mixer", "Bypass Playback Switch", "Line Mono Mux"},
504
505 /* left out */
506 {"Left Out 1", NULL, "Left Mixer"},
507 {"Left Out 2", NULL, "Left Mixer"},
508 {"LOUT1", NULL, "Left Out 1"},
509 {"LOUT2", NULL, "Left Out 2"},
510
511 /* right out */
512 {"Right Out 1", NULL, "Right Mixer"},
513 {"Right Out 2", NULL, "Right Mixer"},
514 {"ROUT1", NULL, "Right Out 1"},
515 {"ROUT2", NULL, "Right Out 2"},
516
517 /* mono 1 out */
518 {"Mono Out 1", NULL, "Mono Mixer"},
519 {"MONO1", NULL, "Mono Out 1"},
520
521 /* mono 2 out */
522 {"Mono 2 Mux", "Left + Right", "Out3 Left + Right"},
523 {"Mono 2 Mux", "Inverted Mono 1", "MONO1"},
524 {"Mono 2 Mux", "Left", "Left Mixer"},
525 {"Mono 2 Mux", "Right", "Right Mixer"},
526 {"Mono Out 2", NULL, "Mono 2 Mux"},
527 {"MONO2", NULL, "Mono Out 2"},
528
529 /* out 3 */
530 {"Out3 Left + Right", NULL, "Left Mixer"},
531 {"Out3 Left + Right", NULL, "Right Mixer"},
532 {"Out3 Mux", "VREF", "VREF"},
533 {"Out3 Mux", "Left + Right", "Out3 Left + Right"},
534 {"Out3 Mux", "ROUT2", "ROUT2"},
535 {"Out 3", NULL, "Out3 Mux"},
536 {"OUT3", NULL, "Out 3"},
537
538 /* out 4 */
539 {"Out4 Mux", "VREF", "VREF"},
540 {"Out4 Mux", "Capture ST", "Playback Mixer"},
541 {"Out4 Mux", "LOUT2", "LOUT2"},
542 {"Out 4", NULL, "Out4 Mux"},
543 {"OUT4", NULL, "Out 4"},
544
545 /* record mixer */
546 {"Playback Mixer", "Left Capture Switch", "Left Mixer"},
547 {"Playback Mixer", "Voice Capture Switch", "Mono Mixer"},
548 {"Playback Mixer", "Right Capture Switch", "Right Mixer"},
549
550 /* Mic/SideTone Mux */
551 {"Mic Sidetone Mux", "Left PGA", "Left Capture Volume"},
552 {"Mic Sidetone Mux", "Right PGA", "Right Capture Volume"},
553 {"Mic Sidetone Mux", "Mic 1", "Mic 1 Volume"},
554 {"Mic Sidetone Mux", "Mic 2", "Mic 2 Volume"},
555
556 /* Capture Left Mux */
557 {"Capture Left Mux", "PGA", "Left Capture Volume"},
558 {"Capture Left Mux", "Line or RXP-RXN", "Line Left Mux"},
559 {"Capture Left Mux", "Line", "LINE1"},
560
561 /* Capture Right Mux */
562 {"Capture Right Mux", "PGA", "Right Capture Volume"},
563 {"Capture Right Mux", "Line or RXP-RXN", "Line Right Mux"},
564 {"Capture Right Mux", "Sidetone", "Playback Mixer"},
565
566 /* Mono Capture mixer-mux */
567 {"Capture Right Mixer", "Stereo", "Capture Right Mux"},
568 {"Capture Left Mixer", "Stereo", "Capture Left Mux"},
569 {"Capture Left Mixer", "Analogue Mix Left", "Capture Left Mux"},
570 {"Capture Left Mixer", "Analogue Mix Left", "Capture Right Mux"},
571 {"Capture Right Mixer", "Analogue Mix Right", "Capture Left Mux"},
572 {"Capture Right Mixer", "Analogue Mix Right", "Capture Right Mux"},
573 {"Capture Left Mixer", "Digital Mono Mix", "Capture Left Mux"},
574 {"Capture Left Mixer", "Digital Mono Mix", "Capture Right Mux"},
575 {"Capture Right Mixer", "Digital Mono Mix", "Capture Left Mux"},
576 {"Capture Right Mixer", "Digital Mono Mix", "Capture Right Mux"},
577
578 /* ADC */
579 {"Left ADC", NULL, "Capture Left Mixer"},
580 {"Right ADC", NULL, "Capture Right Mixer"},
581
582 /* Left Capture Volume */
583 {"Left Capture Volume", NULL, "ACIN"},
584
585 /* Right Capture Volume */
586 {"Right Capture Volume", NULL, "Mic 2 Volume"},
587
588 /* ALC Mixer */
589 {"ALC Mixer", "Line Capture Switch", "Line Mixer"},
590 {"ALC Mixer", "Mic2 Capture Switch", "Mic 2 Volume"},
591 {"ALC Mixer", "Mic1 Capture Switch", "Mic 1 Volume"},
592 {"ALC Mixer", "Rx Capture Switch", "Rx Mixer"},
593
594 /* Line Left Mux */
595 {"Line Left Mux", "Line 1", "LINE1"},
596 {"Line Left Mux", "Rx Mix", "Rx Mixer"},
597
598 /* Line Right Mux */
599 {"Line Right Mux", "Line 2", "LINE2"},
600 {"Line Right Mux", "Rx Mix", "Rx Mixer"},
601
602 /* Line Mono Mux */
603 {"Line Mono Mux", "Line Mix", "Line Mixer"},
604 {"Line Mono Mux", "Rx Mix", "Rx Mixer"},
605
606 /* Line Mixer/Mux */
607 {"Line Mixer", "Line 1 + 2", "LINE1"},
608 {"Line Mixer", "Line 1 - 2", "LINE1"},
609 {"Line Mixer", "Line 1 + 2", "LINE2"},
610 {"Line Mixer", "Line 1 - 2", "LINE2"},
611 {"Line Mixer", "Line 1", "LINE1"},
612 {"Line Mixer", "Line 2", "LINE2"},
613
614 /* Rx Mixer/Mux */
615 {"Rx Mixer", "RXP - RXN", "RXP"},
616 {"Rx Mixer", "RXP + RXN", "RXP"},
617 {"Rx Mixer", "RXP - RXN", "RXN"},
618 {"Rx Mixer", "RXP + RXN", "RXN"},
619 {"Rx Mixer", "RXP", "RXP"},
620 {"Rx Mixer", "RXN", "RXN"},
621
622 /* Mic 1 Volume */
623 {"Mic 1 Volume", NULL, "MIC1N"},
624 {"Mic 1 Volume", NULL, "Mic Selection Mux"},
625
626 /* Mic 2 Volume */
627 {"Mic 2 Volume", NULL, "MIC2N"},
628 {"Mic 2 Volume", NULL, "MIC2"},
629
630 /* Mic Selector Mux */
631 {"Mic Selection Mux", "Mic 1", "MIC1"},
632 {"Mic Selection Mux", "Mic 2", "MIC2N"},
633 {"Mic Selection Mux", "Mic 3", "MIC2"},
634
635 /* ACOP */
636 {"ACOP", NULL, "ALC Mixer"},
637 };
638
639 static int wm8753_add_widgets(struct snd_soc_codec *codec)
640 {
641 struct snd_soc_dapm_context *dapm = &codec->dapm;
642
643 snd_soc_dapm_new_controls(dapm, wm8753_dapm_widgets,
644 ARRAY_SIZE(wm8753_dapm_widgets));
645 snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map));
646
647 return 0;
648 }
649
650 /* PLL divisors */
651 struct _pll_div {
652 u32 div2:1;
653 u32 n:4;
654 u32 k:24;
655 };
656
657 /* The size in bits of the pll divide multiplied by 10
658 * to allow rounding later */
659 #define FIXED_PLL_SIZE ((1 << 22) * 10)
660
661 static void pll_factors(struct _pll_div *pll_div, unsigned int target,
662 unsigned int source)
663 {
664 u64 Kpart;
665 unsigned int K, Ndiv, Nmod;
666
667 Ndiv = target / source;
668 if (Ndiv < 6) {
669 source >>= 1;
670 pll_div->div2 = 1;
671 Ndiv = target / source;
672 } else
673 pll_div->div2 = 0;
674
675 if ((Ndiv < 6) || (Ndiv > 12))
676 printk(KERN_WARNING
677 "wm8753: unsupported N = %u\n", Ndiv);
678
679 pll_div->n = Ndiv;
680 Nmod = target % source;
681 Kpart = FIXED_PLL_SIZE * (long long)Nmod;
682
683 do_div(Kpart, source);
684
685 K = Kpart & 0xFFFFFFFF;
686
687 /* Check if we need to round */
688 if ((K % 10) >= 5)
689 K += 5;
690
691 /* Move down to proper range now rounding is done */
692 K /= 10;
693
694 pll_div->k = K;
695 }
696
697 static int wm8753_set_dai_pll(struct snd_soc_dai *codec_dai, int pll_id,
698 int source, unsigned int freq_in, unsigned int freq_out)
699 {
700 u16 reg, enable;
701 int offset;
702 struct snd_soc_codec *codec = codec_dai->codec;
703
704 if (pll_id < WM8753_PLL1 || pll_id > WM8753_PLL2)
705 return -ENODEV;
706
707 if (pll_id == WM8753_PLL1) {
708 offset = 0;
709 enable = 0x10;
710 reg = snd_soc_read(codec, WM8753_CLOCK) & 0xffef;
711 } else {
712 offset = 4;
713 enable = 0x8;
714 reg = snd_soc_read(codec, WM8753_CLOCK) & 0xfff7;
715 }
716
717 if (!freq_in || !freq_out) {
718 /* disable PLL */
719 snd_soc_write(codec, WM8753_PLL1CTL1 + offset, 0x0026);
720 snd_soc_write(codec, WM8753_CLOCK, reg);
721 return 0;
722 } else {
723 u16 value = 0;
724 struct _pll_div pll_div;
725
726 pll_factors(&pll_div, freq_out * 8, freq_in);
727
728 /* set up N and K PLL divisor ratios */
729 /* bits 8:5 = PLL_N, bits 3:0 = PLL_K[21:18] */
730 value = (pll_div.n << 5) + ((pll_div.k & 0x3c0000) >> 18);
731 snd_soc_write(codec, WM8753_PLL1CTL2 + offset, value);
732
733 /* bits 8:0 = PLL_K[17:9] */
734 value = (pll_div.k & 0x03fe00) >> 9;
735 snd_soc_write(codec, WM8753_PLL1CTL3 + offset, value);
736
737 /* bits 8:0 = PLL_K[8:0] */
738 value = pll_div.k & 0x0001ff;
739 snd_soc_write(codec, WM8753_PLL1CTL4 + offset, value);
740
741 /* set PLL as input and enable */
742 snd_soc_write(codec, WM8753_PLL1CTL1 + offset, 0x0027 |
743 (pll_div.div2 << 3));
744 snd_soc_write(codec, WM8753_CLOCK, reg | enable);
745 }
746 return 0;
747 }
748
749 struct _coeff_div {
750 u32 mclk;
751 u32 rate;
752 u8 sr:5;
753 u8 usb:1;
754 };
755
756 /* codec hifi mclk (after PLL) clock divider coefficients */
757 static const struct _coeff_div coeff_div[] = {
758 /* 8k */
759 {12288000, 8000, 0x6, 0x0},
760 {11289600, 8000, 0x16, 0x0},
761 {18432000, 8000, 0x7, 0x0},
762 {16934400, 8000, 0x17, 0x0},
763 {12000000, 8000, 0x6, 0x1},
764
765 /* 11.025k */
766 {11289600, 11025, 0x18, 0x0},
767 {16934400, 11025, 0x19, 0x0},
768 {12000000, 11025, 0x19, 0x1},
769
770 /* 16k */
771 {12288000, 16000, 0xa, 0x0},
772 {18432000, 16000, 0xb, 0x0},
773 {12000000, 16000, 0xa, 0x1},
774
775 /* 22.05k */
776 {11289600, 22050, 0x1a, 0x0},
777 {16934400, 22050, 0x1b, 0x0},
778 {12000000, 22050, 0x1b, 0x1},
779
780 /* 32k */
781 {12288000, 32000, 0xc, 0x0},
782 {18432000, 32000, 0xd, 0x0},
783 {12000000, 32000, 0xa, 0x1},
784
785 /* 44.1k */
786 {11289600, 44100, 0x10, 0x0},
787 {16934400, 44100, 0x11, 0x0},
788 {12000000, 44100, 0x11, 0x1},
789
790 /* 48k */
791 {12288000, 48000, 0x0, 0x0},
792 {18432000, 48000, 0x1, 0x0},
793 {12000000, 48000, 0x0, 0x1},
794
795 /* 88.2k */
796 {11289600, 88200, 0x1e, 0x0},
797 {16934400, 88200, 0x1f, 0x0},
798 {12000000, 88200, 0x1f, 0x1},
799
800 /* 96k */
801 {12288000, 96000, 0xe, 0x0},
802 {18432000, 96000, 0xf, 0x0},
803 {12000000, 96000, 0xe, 0x1},
804 };
805
806 static int get_coeff(int mclk, int rate)
807 {
808 int i;
809
810 for (i = 0; i < ARRAY_SIZE(coeff_div); i++) {
811 if (coeff_div[i].rate == rate && coeff_div[i].mclk == mclk)
812 return i;
813 }
814 return -EINVAL;
815 }
816
817 /*
818 * Clock after PLL and dividers
819 */
820 static int wm8753_set_dai_sysclk(struct snd_soc_dai *codec_dai,
821 int clk_id, unsigned int freq, int dir)
822 {
823 struct snd_soc_codec *codec = codec_dai->codec;
824 struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);
825
826 switch (freq) {
827 case 11289600:
828 case 12000000:
829 case 12288000:
830 case 16934400:
831 case 18432000:
832 if (clk_id == WM8753_MCLK) {
833 wm8753->sysclk = freq;
834 return 0;
835 } else if (clk_id == WM8753_PCMCLK) {
836 wm8753->pcmclk = freq;
837 return 0;
838 }
839 break;
840 }
841 return -EINVAL;
842 }
843
844 /*
845 * Set's ADC and Voice DAC format.
846 */
847 static int wm8753_vdac_adc_set_dai_fmt(struct snd_soc_codec *codec,
848 unsigned int fmt)
849 {
850 u16 voice = snd_soc_read(codec, WM8753_PCM) & 0x01ec;
851
852 /* interface format */
853 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
854 case SND_SOC_DAIFMT_I2S:
855 voice |= 0x0002;
856 break;
857 case SND_SOC_DAIFMT_RIGHT_J:
858 break;
859 case SND_SOC_DAIFMT_LEFT_J:
860 voice |= 0x0001;
861 break;
862 case SND_SOC_DAIFMT_DSP_A:
863 voice |= 0x0003;
864 break;
865 case SND_SOC_DAIFMT_DSP_B:
866 voice |= 0x0013;
867 break;
868 default:
869 return -EINVAL;
870 }
871
872 snd_soc_write(codec, WM8753_PCM, voice);
873 return 0;
874 }
875
876 /*
877 * Set PCM DAI bit size and sample rate.
878 */
879 static int wm8753_pcm_hw_params(struct snd_pcm_substream *substream,
880 struct snd_pcm_hw_params *params,
881 struct snd_soc_dai *dai)
882 {
883 struct snd_soc_pcm_runtime *rtd = substream->private_data;
884 struct snd_soc_codec *codec = rtd->codec;
885 struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);
886 u16 voice = snd_soc_read(codec, WM8753_PCM) & 0x01f3;
887 u16 srate = snd_soc_read(codec, WM8753_SRATE1) & 0x017f;
888
889 /* bit size */
890 switch (params_format(params)) {
891 case SNDRV_PCM_FORMAT_S16_LE:
892 break;
893 case SNDRV_PCM_FORMAT_S20_3LE:
894 voice |= 0x0004;
895 break;
896 case SNDRV_PCM_FORMAT_S24_LE:
897 voice |= 0x0008;
898 break;
899 case SNDRV_PCM_FORMAT_S32_LE:
900 voice |= 0x000c;
901 break;
902 }
903
904 /* sample rate */
905 if (params_rate(params) * 384 == wm8753->pcmclk)
906 srate |= 0x80;
907 snd_soc_write(codec, WM8753_SRATE1, srate);
908
909 snd_soc_write(codec, WM8753_PCM, voice);
910 return 0;
911 }
912
913 /*
914 * Set's PCM dai fmt and BCLK.
915 */
916 static int wm8753_pcm_set_dai_fmt(struct snd_soc_codec *codec,
917 unsigned int fmt)
918 {
919 u16 voice, ioctl;
920
921 voice = snd_soc_read(codec, WM8753_PCM) & 0x011f;
922 ioctl = snd_soc_read(codec, WM8753_IOCTL) & 0x015d;
923
924 /* set master/slave audio interface */
925 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
926 case SND_SOC_DAIFMT_CBS_CFS:
927 break;
928 case SND_SOC_DAIFMT_CBM_CFM:
929 ioctl |= 0x2;
930 case SND_SOC_DAIFMT_CBM_CFS:
931 voice |= 0x0040;
932 break;
933 default:
934 return -EINVAL;
935 }
936
937 /* clock inversion */
938 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
939 case SND_SOC_DAIFMT_DSP_A:
940 case SND_SOC_DAIFMT_DSP_B:
941 /* frame inversion not valid for DSP modes */
942 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
943 case SND_SOC_DAIFMT_NB_NF:
944 break;
945 case SND_SOC_DAIFMT_IB_NF:
946 voice |= 0x0080;
947 break;
948 default:
949 return -EINVAL;
950 }
951 break;
952 case SND_SOC_DAIFMT_I2S:
953 case SND_SOC_DAIFMT_RIGHT_J:
954 case SND_SOC_DAIFMT_LEFT_J:
955 voice &= ~0x0010;
956 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
957 case SND_SOC_DAIFMT_NB_NF:
958 break;
959 case SND_SOC_DAIFMT_IB_IF:
960 voice |= 0x0090;
961 break;
962 case SND_SOC_DAIFMT_IB_NF:
963 voice |= 0x0080;
964 break;
965 case SND_SOC_DAIFMT_NB_IF:
966 voice |= 0x0010;
967 break;
968 default:
969 return -EINVAL;
970 }
971 break;
972 default:
973 return -EINVAL;
974 }
975
976 snd_soc_write(codec, WM8753_PCM, voice);
977 snd_soc_write(codec, WM8753_IOCTL, ioctl);
978 return 0;
979 }
980
981 static int wm8753_set_dai_clkdiv(struct snd_soc_dai *codec_dai,
982 int div_id, int div)
983 {
984 struct snd_soc_codec *codec = codec_dai->codec;
985 u16 reg;
986
987 switch (div_id) {
988 case WM8753_PCMDIV:
989 reg = snd_soc_read(codec, WM8753_CLOCK) & 0x003f;
990 snd_soc_write(codec, WM8753_CLOCK, reg | div);
991 break;
992 case WM8753_BCLKDIV:
993 reg = snd_soc_read(codec, WM8753_SRATE2) & 0x01c7;
994 snd_soc_write(codec, WM8753_SRATE2, reg | div);
995 break;
996 case WM8753_VXCLKDIV:
997 reg = snd_soc_read(codec, WM8753_SRATE2) & 0x003f;
998 snd_soc_write(codec, WM8753_SRATE2, reg | div);
999 break;
1000 default:
1001 return -EINVAL;
1002 }
1003 return 0;
1004 }
1005
1006 /*
1007 * Set's HiFi DAC format.
1008 */
1009 static int wm8753_hdac_set_dai_fmt(struct snd_soc_codec *codec,
1010 unsigned int fmt)
1011 {
1012 u16 hifi = snd_soc_read(codec, WM8753_HIFI) & 0x01e0;
1013
1014 /* interface format */
1015 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
1016 case SND_SOC_DAIFMT_I2S:
1017 hifi |= 0x0002;
1018 break;
1019 case SND_SOC_DAIFMT_RIGHT_J:
1020 break;
1021 case SND_SOC_DAIFMT_LEFT_J:
1022 hifi |= 0x0001;
1023 break;
1024 case SND_SOC_DAIFMT_DSP_A:
1025 hifi |= 0x0003;
1026 break;
1027 case SND_SOC_DAIFMT_DSP_B:
1028 hifi |= 0x0013;
1029 break;
1030 default:
1031 return -EINVAL;
1032 }
1033
1034 snd_soc_write(codec, WM8753_HIFI, hifi);
1035 return 0;
1036 }
1037
1038 /*
1039 * Set's I2S DAI format.
1040 */
1041 static int wm8753_i2s_set_dai_fmt(struct snd_soc_codec *codec,
1042 unsigned int fmt)
1043 {
1044 u16 ioctl, hifi;
1045
1046 hifi = snd_soc_read(codec, WM8753_HIFI) & 0x011f;
1047 ioctl = snd_soc_read(codec, WM8753_IOCTL) & 0x00ae;
1048
1049 /* set master/slave audio interface */
1050 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
1051 case SND_SOC_DAIFMT_CBS_CFS:
1052 break;
1053 case SND_SOC_DAIFMT_CBM_CFM:
1054 ioctl |= 0x1;
1055 case SND_SOC_DAIFMT_CBM_CFS:
1056 hifi |= 0x0040;
1057 break;
1058 default:
1059 return -EINVAL;
1060 }
1061
1062 /* clock inversion */
1063 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
1064 case SND_SOC_DAIFMT_DSP_A:
1065 case SND_SOC_DAIFMT_DSP_B:
1066 /* frame inversion not valid for DSP modes */
1067 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
1068 case SND_SOC_DAIFMT_NB_NF:
1069 break;
1070 case SND_SOC_DAIFMT_IB_NF:
1071 hifi |= 0x0080;
1072 break;
1073 default:
1074 return -EINVAL;
1075 }
1076 break;
1077 case SND_SOC_DAIFMT_I2S:
1078 case SND_SOC_DAIFMT_RIGHT_J:
1079 case SND_SOC_DAIFMT_LEFT_J:
1080 hifi &= ~0x0010;
1081 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
1082 case SND_SOC_DAIFMT_NB_NF:
1083 break;
1084 case SND_SOC_DAIFMT_IB_IF:
1085 hifi |= 0x0090;
1086 break;
1087 case SND_SOC_DAIFMT_IB_NF:
1088 hifi |= 0x0080;
1089 break;
1090 case SND_SOC_DAIFMT_NB_IF:
1091 hifi |= 0x0010;
1092 break;
1093 default:
1094 return -EINVAL;
1095 }
1096 break;
1097 default:
1098 return -EINVAL;
1099 }
1100
1101 snd_soc_write(codec, WM8753_HIFI, hifi);
1102 snd_soc_write(codec, WM8753_IOCTL, ioctl);
1103 return 0;
1104 }
1105
1106 /*
1107 * Set PCM DAI bit size and sample rate.
1108 */
1109 static int wm8753_i2s_hw_params(struct snd_pcm_substream *substream,
1110 struct snd_pcm_hw_params *params,
1111 struct snd_soc_dai *dai)
1112 {
1113 struct snd_soc_pcm_runtime *rtd = substream->private_data;
1114 struct snd_soc_codec *codec = rtd->codec;
1115 struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);
1116 u16 srate = snd_soc_read(codec, WM8753_SRATE1) & 0x01c0;
1117 u16 hifi = snd_soc_read(codec, WM8753_HIFI) & 0x01f3;
1118 int coeff;
1119
1120 /* is digital filter coefficient valid ? */
1121 coeff = get_coeff(wm8753->sysclk, params_rate(params));
1122 if (coeff < 0) {
1123 printk(KERN_ERR "wm8753 invalid MCLK or rate\n");
1124 return coeff;
1125 }
1126 snd_soc_write(codec, WM8753_SRATE1, srate | (coeff_div[coeff].sr << 1) |
1127 coeff_div[coeff].usb);
1128
1129 /* bit size */
1130 switch (params_format(params)) {
1131 case SNDRV_PCM_FORMAT_S16_LE:
1132 break;
1133 case SNDRV_PCM_FORMAT_S20_3LE:
1134 hifi |= 0x0004;
1135 break;
1136 case SNDRV_PCM_FORMAT_S24_LE:
1137 hifi |= 0x0008;
1138 break;
1139 case SNDRV_PCM_FORMAT_S32_LE:
1140 hifi |= 0x000c;
1141 break;
1142 }
1143
1144 snd_soc_write(codec, WM8753_HIFI, hifi);
1145 return 0;
1146 }
1147
1148 static int wm8753_mode1v_set_dai_fmt(struct snd_soc_codec *codec,
1149 unsigned int fmt)
1150 {
1151 u16 clock;
1152
1153 /* set clk source as pcmclk */
1154 clock = snd_soc_read(codec, WM8753_CLOCK) & 0xfffb;
1155 snd_soc_write(codec, WM8753_CLOCK, clock);
1156
1157 return wm8753_vdac_adc_set_dai_fmt(codec, fmt);
1158 }
1159
1160 static int wm8753_mode1h_set_dai_fmt(struct snd_soc_codec *codec,
1161 unsigned int fmt)
1162 {
1163 return wm8753_hdac_set_dai_fmt(codec, fmt);
1164 }
1165
1166 static int wm8753_mode2_set_dai_fmt(struct snd_soc_codec *codec,
1167 unsigned int fmt)
1168 {
1169 u16 clock;
1170
1171 /* set clk source as pcmclk */
1172 clock = snd_soc_read(codec, WM8753_CLOCK) & 0xfffb;
1173 snd_soc_write(codec, WM8753_CLOCK, clock);
1174
1175 return wm8753_vdac_adc_set_dai_fmt(codec, fmt);
1176 }
1177
1178 static int wm8753_mode3_4_set_dai_fmt(struct snd_soc_codec *codec,
1179 unsigned int fmt)
1180 {
1181 u16 clock;
1182
1183 /* set clk source as mclk */
1184 clock = snd_soc_read(codec, WM8753_CLOCK) & 0xfffb;
1185 snd_soc_write(codec, WM8753_CLOCK, clock | 0x4);
1186
1187 if (wm8753_hdac_set_dai_fmt(codec, fmt) < 0)
1188 return -EINVAL;
1189 return wm8753_vdac_adc_set_dai_fmt(codec, fmt);
1190 }
1191
1192 static int wm8753_hifi_write_dai_fmt(struct snd_soc_codec *codec,
1193 unsigned int fmt)
1194 {
1195 struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);
1196 int ret = 0;
1197
1198 switch (wm8753->dai_func) {
1199 case 0:
1200 ret = wm8753_mode1h_set_dai_fmt(codec, fmt);
1201 break;
1202 case 1:
1203 ret = wm8753_mode2_set_dai_fmt(codec, fmt);
1204 break;
1205 case 2:
1206 case 3:
1207 ret = wm8753_mode3_4_set_dai_fmt(codec, fmt);
1208 break;
1209 default:
1210 break;
1211 }
1212 if (ret)
1213 return ret;
1214
1215 return wm8753_i2s_set_dai_fmt(codec, fmt);
1216 }
1217
1218 static int wm8753_hifi_set_dai_fmt(struct snd_soc_dai *codec_dai,
1219 unsigned int fmt)
1220 {
1221 struct snd_soc_codec *codec = codec_dai->codec;
1222 struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);
1223
1224 wm8753->hifi_fmt = fmt;
1225
1226 return wm8753_hifi_write_dai_fmt(codec, fmt);
1227 };
1228
1229 static int wm8753_voice_write_dai_fmt(struct snd_soc_codec *codec,
1230 unsigned int fmt)
1231 {
1232 struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);
1233 int ret = 0;
1234
1235 if (wm8753->dai_func != 0)
1236 return 0;
1237
1238 ret = wm8753_mode1v_set_dai_fmt(codec, fmt);
1239 if (ret)
1240 return ret;
1241 ret = wm8753_pcm_set_dai_fmt(codec, fmt);
1242 if (ret)
1243 return ret;
1244
1245 return 0;
1246 };
1247
1248 static int wm8753_voice_set_dai_fmt(struct snd_soc_dai *codec_dai,
1249 unsigned int fmt)
1250 {
1251 struct snd_soc_codec *codec = codec_dai->codec;
1252 struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);
1253
1254 wm8753->voice_fmt = fmt;
1255
1256 return wm8753_voice_write_dai_fmt(codec, fmt);
1257 };
1258
1259 static int wm8753_mute(struct snd_soc_dai *dai, int mute)
1260 {
1261 struct snd_soc_codec *codec = dai->codec;
1262 u16 mute_reg = snd_soc_read(codec, WM8753_DAC) & 0xfff7;
1263 struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);
1264
1265 /* the digital mute covers the HiFi and Voice DAC's on the WM8753.
1266 * make sure we check if they are not both active when we mute */
1267 if (mute && wm8753->dai_func == 1) {
1268 if (!codec->active)
1269 snd_soc_write(codec, WM8753_DAC, mute_reg | 0x8);
1270 } else {
1271 if (mute)
1272 snd_soc_write(codec, WM8753_DAC, mute_reg | 0x8);
1273 else
1274 snd_soc_write(codec, WM8753_DAC, mute_reg);
1275 }
1276
1277 return 0;
1278 }
1279
1280 static int wm8753_set_bias_level(struct snd_soc_codec *codec,
1281 enum snd_soc_bias_level level)
1282 {
1283 u16 pwr_reg = snd_soc_read(codec, WM8753_PWR1) & 0xfe3e;
1284
1285 switch (level) {
1286 case SND_SOC_BIAS_ON:
1287 /* set vmid to 50k and unmute dac */
1288 snd_soc_write(codec, WM8753_PWR1, pwr_reg | 0x00c0);
1289 break;
1290 case SND_SOC_BIAS_PREPARE:
1291 /* set vmid to 5k for quick power up */
1292 snd_soc_write(codec, WM8753_PWR1, pwr_reg | 0x01c1);
1293 break;
1294 case SND_SOC_BIAS_STANDBY:
1295 /* mute dac and set vmid to 500k, enable VREF */
1296 snd_soc_write(codec, WM8753_PWR1, pwr_reg | 0x0141);
1297 break;
1298 case SND_SOC_BIAS_OFF:
1299 snd_soc_write(codec, WM8753_PWR1, 0x0001);
1300 break;
1301 }
1302 codec->dapm.bias_level = level;
1303 return 0;
1304 }
1305
1306 #define WM8753_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\
1307 SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 |\
1308 SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 |\
1309 SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000)
1310
1311 #define WM8753_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
1312 SNDRV_PCM_FMTBIT_S24_LE)
1313
1314 /*
1315 * The WM8753 supports up to 4 different and mutually exclusive DAI
1316 * configurations. This gives 2 PCM's available for use, hifi and voice.
1317 * NOTE: The Voice PCM cannot play or capture audio to the CPU as it's DAI
1318 * is connected between the wm8753 and a BT codec or GSM modem.
1319 *
1320 * 1. Voice over PCM DAI - HIFI DAC over HIFI DAI
1321 * 2. Voice over HIFI DAI - HIFI disabled
1322 * 3. Voice disabled - HIFI over HIFI
1323 * 4. Voice disabled - HIFI over HIFI, uses voice DAI LRC for capture
1324 */
1325 static struct snd_soc_dai_ops wm8753_dai_ops_hifi_mode = {
1326 .hw_params = wm8753_i2s_hw_params,
1327 .digital_mute = wm8753_mute,
1328 .set_fmt = wm8753_hifi_set_dai_fmt,
1329 .set_clkdiv = wm8753_set_dai_clkdiv,
1330 .set_pll = wm8753_set_dai_pll,
1331 .set_sysclk = wm8753_set_dai_sysclk,
1332 };
1333
1334 static struct snd_soc_dai_ops wm8753_dai_ops_voice_mode = {
1335 .hw_params = wm8753_pcm_hw_params,
1336 .digital_mute = wm8753_mute,
1337 .set_fmt = wm8753_voice_set_dai_fmt,
1338 .set_clkdiv = wm8753_set_dai_clkdiv,
1339 .set_pll = wm8753_set_dai_pll,
1340 .set_sysclk = wm8753_set_dai_sysclk,
1341 };
1342
1343 static struct snd_soc_dai_driver wm8753_dai[] = {
1344 /* DAI HiFi mode 1 */
1345 { .name = "wm8753-hifi",
1346 .playback = {
1347 .stream_name = "HiFi Playback",
1348 .channels_min = 1,
1349 .channels_max = 2,
1350 .rates = WM8753_RATES,
1351 .formats = WM8753_FORMATS
1352 },
1353 .capture = { /* dummy for fast DAI switching */
1354 .stream_name = "Capture",
1355 .channels_min = 1,
1356 .channels_max = 2,
1357 .rates = WM8753_RATES,
1358 .formats = WM8753_FORMATS
1359 },
1360 .ops = &wm8753_dai_ops_hifi_mode,
1361 },
1362 /* DAI Voice mode 1 */
1363 { .name = "wm8753-voice",
1364 .playback = {
1365 .stream_name = "Voice Playback",
1366 .channels_min = 1,
1367 .channels_max = 1,
1368 .rates = WM8753_RATES,
1369 .formats = WM8753_FORMATS,
1370 },
1371 .capture = {
1372 .stream_name = "Capture",
1373 .channels_min = 1,
1374 .channels_max = 2,
1375 .rates = WM8753_RATES,
1376 .formats = WM8753_FORMATS,
1377 },
1378 .ops = &wm8753_dai_ops_voice_mode,
1379 },
1380 };
1381
1382 static void wm8753_work(struct work_struct *work)
1383 {
1384 struct snd_soc_dapm_context *dapm =
1385 container_of(work, struct snd_soc_dapm_context,
1386 delayed_work.work);
1387 struct snd_soc_codec *codec = dapm->codec;
1388 wm8753_set_bias_level(codec, dapm->bias_level);
1389 }
1390
1391 static int wm8753_suspend(struct snd_soc_codec *codec, pm_message_t state)
1392 {
1393 wm8753_set_bias_level(codec, SND_SOC_BIAS_OFF);
1394 return 0;
1395 }
1396
1397 static int wm8753_resume(struct snd_soc_codec *codec)
1398 {
1399 u16 *reg_cache = codec->reg_cache;
1400 int i;
1401
1402 /* Sync reg_cache with the hardware */
1403 for (i = 1; i < ARRAY_SIZE(wm8753_reg); i++) {
1404 if (i == WM8753_RESET)
1405 continue;
1406
1407 /* No point in writing hardware default values back */
1408 if (reg_cache[i] == wm8753_reg[i])
1409 continue;
1410
1411 snd_soc_write(codec, i, reg_cache[i]);
1412 }
1413
1414 wm8753_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
1415
1416 /* charge wm8753 caps */
1417 if (codec->dapm.suspend_bias_level == SND_SOC_BIAS_ON) {
1418 wm8753_set_bias_level(codec, SND_SOC_BIAS_PREPARE);
1419 codec->dapm.bias_level = SND_SOC_BIAS_ON;
1420 schedule_delayed_work(&codec->dapm.delayed_work,
1421 msecs_to_jiffies(caps_charge));
1422 }
1423
1424 return 0;
1425 }
1426
1427 static int wm8753_probe(struct snd_soc_codec *codec)
1428 {
1429 struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);
1430 int ret;
1431
1432 INIT_DELAYED_WORK(&codec->dapm.delayed_work, wm8753_work);
1433
1434 ret = snd_soc_codec_set_cache_io(codec, 7, 9, wm8753->control_type);
1435 if (ret < 0) {
1436 dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret);
1437 return ret;
1438 }
1439
1440 ret = wm8753_reset(codec);
1441 if (ret < 0) {
1442 dev_err(codec->dev, "Failed to issue reset: %d\n", ret);
1443 return ret;
1444 }
1445
1446 wm8753_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
1447 wm8753->dai_func = 0;
1448
1449 /* charge output caps */
1450 wm8753_set_bias_level(codec, SND_SOC_BIAS_PREPARE);
1451 schedule_delayed_work(&codec->dapm.delayed_work,
1452 msecs_to_jiffies(caps_charge));
1453
1454 /* set the update bits */
1455 snd_soc_update_bits(codec, WM8753_LDAC, 0x0100, 0x0100);
1456 snd_soc_update_bits(codec, WM8753_RDAC, 0x0100, 0x0100);
1457 snd_soc_update_bits(codec, WM8753_LDAC, 0x0100, 0x0100);
1458 snd_soc_update_bits(codec, WM8753_RDAC, 0x0100, 0x0100);
1459 snd_soc_update_bits(codec, WM8753_LOUT1V, 0x0100, 0x0100);
1460 snd_soc_update_bits(codec, WM8753_ROUT1V, 0x0100, 0x0100);
1461 snd_soc_update_bits(codec, WM8753_LOUT2V, 0x0100, 0x0100);
1462 snd_soc_update_bits(codec, WM8753_ROUT2V, 0x0100, 0x0100);
1463 snd_soc_update_bits(codec, WM8753_LINVOL, 0x0100, 0x0100);
1464 snd_soc_update_bits(codec, WM8753_RINVOL, 0x0100, 0x0100);
1465
1466 snd_soc_add_controls(codec, wm8753_snd_controls,
1467 ARRAY_SIZE(wm8753_snd_controls));
1468 wm8753_add_widgets(codec);
1469
1470 return 0;
1471 }
1472
1473 /* power down chip */
1474 static int wm8753_remove(struct snd_soc_codec *codec)
1475 {
1476 flush_delayed_work_sync(&codec->dapm.delayed_work);
1477 wm8753_set_bias_level(codec, SND_SOC_BIAS_OFF);
1478
1479 return 0;
1480 }
1481
1482 static struct snd_soc_codec_driver soc_codec_dev_wm8753 = {
1483 .probe = wm8753_probe,
1484 .remove = wm8753_remove,
1485 .suspend = wm8753_suspend,
1486 .resume = wm8753_resume,
1487 .set_bias_level = wm8753_set_bias_level,
1488 .reg_cache_size = ARRAY_SIZE(wm8753_reg),
1489 .reg_word_size = sizeof(u16),
1490 .reg_cache_default = wm8753_reg,
1491 };
1492
1493 #if defined(CONFIG_SPI_MASTER)
1494 static int __devinit wm8753_spi_probe(struct spi_device *spi)
1495 {
1496 struct wm8753_priv *wm8753;
1497 int ret;
1498
1499 wm8753 = kzalloc(sizeof(struct wm8753_priv), GFP_KERNEL);
1500 if (wm8753 == NULL)
1501 return -ENOMEM;
1502
1503 wm8753->control_type = SND_SOC_SPI;
1504 spi_set_drvdata(spi, wm8753);
1505
1506 ret = snd_soc_register_codec(&spi->dev,
1507 &soc_codec_dev_wm8753, wm8753_dai, ARRAY_SIZE(wm8753_dai));
1508 if (ret < 0)
1509 kfree(wm8753);
1510 return ret;
1511 }
1512
1513 static int __devexit wm8753_spi_remove(struct spi_device *spi)
1514 {
1515 snd_soc_unregister_codec(&spi->dev);
1516 kfree(spi_get_drvdata(spi));
1517 return 0;
1518 }
1519
1520 static struct spi_driver wm8753_spi_driver = {
1521 .driver = {
1522 .name = "wm8753-codec",
1523 .owner = THIS_MODULE,
1524 },
1525 .probe = wm8753_spi_probe,
1526 .remove = __devexit_p(wm8753_spi_remove),
1527 };
1528 #endif /* CONFIG_SPI_MASTER */
1529
1530 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
1531 static __devinit int wm8753_i2c_probe(struct i2c_client *i2c,
1532 const struct i2c_device_id *id)
1533 {
1534 struct wm8753_priv *wm8753;
1535 int ret;
1536
1537 wm8753 = kzalloc(sizeof(struct wm8753_priv), GFP_KERNEL);
1538 if (wm8753 == NULL)
1539 return -ENOMEM;
1540
1541 i2c_set_clientdata(i2c, wm8753);
1542 wm8753->control_type = SND_SOC_I2C;
1543
1544 ret = snd_soc_register_codec(&i2c->dev,
1545 &soc_codec_dev_wm8753, wm8753_dai, ARRAY_SIZE(wm8753_dai));
1546 if (ret < 0)
1547 kfree(wm8753);
1548 return ret;
1549 }
1550
1551 static __devexit int wm8753_i2c_remove(struct i2c_client *client)
1552 {
1553 snd_soc_unregister_codec(&client->dev);
1554 kfree(i2c_get_clientdata(client));
1555 return 0;
1556 }
1557
1558 static const struct i2c_device_id wm8753_i2c_id[] = {
1559 { "wm8753", 0 },
1560 { }
1561 };
1562 MODULE_DEVICE_TABLE(i2c, wm8753_i2c_id);
1563
1564 static struct i2c_driver wm8753_i2c_driver = {
1565 .driver = {
1566 .name = "wm8753-codec",
1567 .owner = THIS_MODULE,
1568 },
1569 .probe = wm8753_i2c_probe,
1570 .remove = __devexit_p(wm8753_i2c_remove),
1571 .id_table = wm8753_i2c_id,
1572 };
1573 #endif
1574
1575 static int __init wm8753_modinit(void)
1576 {
1577 int ret = 0;
1578 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
1579 ret = i2c_add_driver(&wm8753_i2c_driver);
1580 if (ret != 0) {
1581 printk(KERN_ERR "Failed to register wm8753 I2C driver: %d\n",
1582 ret);
1583 }
1584 #endif
1585 #if defined(CONFIG_SPI_MASTER)
1586 ret = spi_register_driver(&wm8753_spi_driver);
1587 if (ret != 0) {
1588 printk(KERN_ERR "Failed to register wm8753 SPI driver: %d\n",
1589 ret);
1590 }
1591 #endif
1592 return ret;
1593 }
1594 module_init(wm8753_modinit);
1595
1596 static void __exit wm8753_exit(void)
1597 {
1598 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
1599 i2c_del_driver(&wm8753_i2c_driver);
1600 #endif
1601 #if defined(CONFIG_SPI_MASTER)
1602 spi_unregister_driver(&wm8753_spi_driver);
1603 #endif
1604 }
1605 module_exit(wm8753_exit);
1606
1607 MODULE_DESCRIPTION("ASoC WM8753 driver");
1608 MODULE_AUTHOR("Liam Girdwood");
1609 MODULE_LICENSE("GPL");
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