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Merge branch 'DB_RANGE-size-fixes' of git://git.alsa-project.org/alsa-kprivate into...
[deliverable/linux.git] / sound / soc / codecs / wm8753.c
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/of_device.h>
42 #include <linux/platform_device.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 u16 wm8753_reg[] = {
70 0x0000, 0x0008, 0x0000, 0x000a,
71 0x000a, 0x0033, 0x0000, 0x0007,
72 0x00ff, 0x00ff, 0x000f, 0x000f,
73 0x007b, 0x0000, 0x0032, 0x0000,
74 0x00c3, 0x00c3, 0x00c0, 0x0000,
75 0x0000, 0x0000, 0x0000, 0x0000,
76 0x0000, 0x0000, 0x0000, 0x0000,
77 0x0000, 0x0000, 0x0000, 0x0000,
78 0x0055, 0x0005, 0x0050, 0x0055,
79 0x0050, 0x0055, 0x0050, 0x0055,
80 0x0079, 0x0079, 0x0079, 0x0079,
81 0x0079, 0x0000, 0x0000, 0x0000,
82 0x0000, 0x0097, 0x0097, 0x0000,
83 0x0004, 0x0000, 0x0083, 0x0024,
84 0x01ba, 0x0000, 0x0083, 0x0024,
85 0x01ba, 0x0000, 0x0000, 0x0000
86 };
87
88 /* codec private data */
89 struct wm8753_priv {
90 enum snd_soc_control_type control_type;
91 unsigned int sysclk;
92 unsigned int pcmclk;
93
94 unsigned int voice_fmt;
95 unsigned int hifi_fmt;
96
97 int dai_func;
98 };
99
100 #define wm8753_reset(c) snd_soc_write(c, WM8753_RESET, 0)
101
102 /*
103 * WM8753 Controls
104 */
105 static const char *wm8753_base[] = {"Linear Control", "Adaptive Boost"};
106 static const char *wm8753_base_filter[] =
107 {"130Hz @ 48kHz", "200Hz @ 48kHz", "100Hz @ 16kHz", "400Hz @ 48kHz",
108 "100Hz @ 8kHz", "200Hz @ 8kHz"};
109 static const char *wm8753_treble[] = {"8kHz", "4kHz"};
110 static const char *wm8753_alc_func[] = {"Off", "Right", "Left", "Stereo"};
111 static const char *wm8753_ng_type[] = {"Constant PGA Gain", "Mute ADC Output"};
112 static const char *wm8753_3d_func[] = {"Capture", "Playback"};
113 static const char *wm8753_3d_uc[] = {"2.2kHz", "1.5kHz"};
114 static const char *wm8753_3d_lc[] = {"200Hz", "500Hz"};
115 static const char *wm8753_deemp[] = {"None", "32kHz", "44.1kHz", "48kHz"};
116 static const char *wm8753_mono_mix[] = {"Stereo", "Left", "Right", "Mono"};
117 static const char *wm8753_dac_phase[] = {"Non Inverted", "Inverted"};
118 static const char *wm8753_line_mix[] = {"Line 1 + 2", "Line 1 - 2",
119 "Line 1", "Line 2"};
120 static const char *wm8753_mono_mux[] = {"Line Mix", "Rx Mix"};
121 static const char *wm8753_right_mux[] = {"Line 2", "Rx Mix"};
122 static const char *wm8753_left_mux[] = {"Line 1", "Rx Mix"};
123 static const char *wm8753_rxmsel[] = {"RXP - RXN", "RXP + RXN", "RXP", "RXN"};
124 static const char *wm8753_sidetone_mux[] = {"Left PGA", "Mic 1", "Mic 2",
125 "Right PGA"};
126 static const char *wm8753_mono2_src[] = {"Inverted Mono 1", "Left", "Right",
127 "Left + Right"};
128 static const char *wm8753_out3[] = {"VREF", "ROUT2", "Left + Right"};
129 static const char *wm8753_out4[] = {"VREF", "Capture ST", "LOUT2"};
130 static const char *wm8753_radcsel[] = {"PGA", "Line or RXP-RXN", "Sidetone"};
131 static const char *wm8753_ladcsel[] = {"PGA", "Line or RXP-RXN", "Line"};
132 static const char *wm8753_mono_adc[] = {"Stereo", "Analogue Mix Left",
133 "Analogue Mix Right", "Digital Mono Mix"};
134 static const char *wm8753_adc_hp[] = {"3.4Hz @ 48kHz", "82Hz @ 16k",
135 "82Hz @ 8kHz", "170Hz @ 8kHz"};
136 static const char *wm8753_adc_filter[] = {"HiFi", "Voice"};
137 static const char *wm8753_mic_sel[] = {"Mic 1", "Mic 2", "Mic 3"};
138 static const char *wm8753_dai_mode[] = {"DAI 0", "DAI 1", "DAI 2", "DAI 3"};
139 static const char *wm8753_dat_sel[] = {"Stereo", "Left ADC", "Right ADC",
140 "Channel Swap"};
141 static const char *wm8753_rout2_phase[] = {"Non Inverted", "Inverted"};
142
143 static const struct soc_enum wm8753_enum[] = {
144 SOC_ENUM_SINGLE(WM8753_BASS, 7, 2, wm8753_base),
145 SOC_ENUM_SINGLE(WM8753_BASS, 4, 6, wm8753_base_filter),
146 SOC_ENUM_SINGLE(WM8753_TREBLE, 6, 2, wm8753_treble),
147 SOC_ENUM_SINGLE(WM8753_ALC1, 7, 4, wm8753_alc_func),
148 SOC_ENUM_SINGLE(WM8753_NGATE, 1, 2, wm8753_ng_type),
149 SOC_ENUM_SINGLE(WM8753_3D, 7, 2, wm8753_3d_func),
150 SOC_ENUM_SINGLE(WM8753_3D, 6, 2, wm8753_3d_uc),
151 SOC_ENUM_SINGLE(WM8753_3D, 5, 2, wm8753_3d_lc),
152 SOC_ENUM_SINGLE(WM8753_DAC, 1, 4, wm8753_deemp),
153 SOC_ENUM_SINGLE(WM8753_DAC, 4, 4, wm8753_mono_mix),
154 SOC_ENUM_SINGLE(WM8753_DAC, 6, 2, wm8753_dac_phase),
155 SOC_ENUM_SINGLE(WM8753_INCTL1, 3, 4, wm8753_line_mix),
156 SOC_ENUM_SINGLE(WM8753_INCTL1, 2, 2, wm8753_mono_mux),
157 SOC_ENUM_SINGLE(WM8753_INCTL1, 1, 2, wm8753_right_mux),
158 SOC_ENUM_SINGLE(WM8753_INCTL1, 0, 2, wm8753_left_mux),
159 SOC_ENUM_SINGLE(WM8753_INCTL2, 6, 4, wm8753_rxmsel),
160 SOC_ENUM_SINGLE(WM8753_INCTL2, 4, 4, wm8753_sidetone_mux),
161 SOC_ENUM_SINGLE(WM8753_OUTCTL, 7, 4, wm8753_mono2_src),
162 SOC_ENUM_SINGLE(WM8753_OUTCTL, 0, 3, wm8753_out3),
163 SOC_ENUM_SINGLE(WM8753_ADCTL2, 7, 3, wm8753_out4),
164 SOC_ENUM_SINGLE(WM8753_ADCIN, 2, 3, wm8753_radcsel),
165 SOC_ENUM_SINGLE(WM8753_ADCIN, 0, 3, wm8753_ladcsel),
166 SOC_ENUM_SINGLE(WM8753_ADCIN, 4, 4, wm8753_mono_adc),
167 SOC_ENUM_SINGLE(WM8753_ADC, 2, 4, wm8753_adc_hp),
168 SOC_ENUM_SINGLE(WM8753_ADC, 4, 2, wm8753_adc_filter),
169 SOC_ENUM_SINGLE(WM8753_MICBIAS, 6, 3, wm8753_mic_sel),
170 SOC_ENUM_SINGLE(WM8753_IOCTL, 2, 4, wm8753_dai_mode),
171 SOC_ENUM_SINGLE(WM8753_ADC, 7, 4, wm8753_dat_sel),
172 SOC_ENUM_SINGLE(WM8753_OUTCTL, 2, 2, wm8753_rout2_phase),
173 };
174
175
176 static int wm8753_get_dai(struct snd_kcontrol *kcontrol,
177 struct snd_ctl_elem_value *ucontrol)
178 {
179 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
180 struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);
181
182 ucontrol->value.integer.value[0] = wm8753->dai_func;
183 return 0;
184 }
185
186 static int wm8753_set_dai(struct snd_kcontrol *kcontrol,
187 struct snd_ctl_elem_value *ucontrol)
188 {
189 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
190 struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);
191 u16 ioctl;
192
193 if (wm8753->dai_func == ucontrol->value.integer.value[0])
194 return 0;
195
196 if (codec->active)
197 return -EBUSY;
198
199 ioctl = snd_soc_read(codec, WM8753_IOCTL);
200
201 wm8753->dai_func = ucontrol->value.integer.value[0];
202
203 if (((ioctl >> 2) & 0x3) == wm8753->dai_func)
204 return 1;
205
206 ioctl = (ioctl & 0x1f3) | (wm8753->dai_func << 2);
207 snd_soc_write(codec, WM8753_IOCTL, ioctl);
208
209
210 wm8753_hifi_write_dai_fmt(codec, wm8753->hifi_fmt);
211 wm8753_voice_write_dai_fmt(codec, wm8753->voice_fmt);
212
213 return 1;
214 }
215
216 static const DECLARE_TLV_DB_SCALE(rec_mix_tlv, -1500, 300, 0);
217 static const DECLARE_TLV_DB_SCALE(mic_preamp_tlv, 1200, 600, 0);
218 static const DECLARE_TLV_DB_SCALE(adc_tlv, -9750, 50, 1);
219 static const DECLARE_TLV_DB_SCALE(dac_tlv, -12750, 50, 1);
220 static const unsigned int out_tlv[] = {
221 TLV_DB_RANGE_HEAD(2),
222 /* 0000000 - 0101111 = "Analogue mute" */
223 0, 48, TLV_DB_SCALE_ITEM(-25500, 0, 0),
224 48, 127, TLV_DB_SCALE_ITEM(-7300, 100, 0),
225 };
226 static const DECLARE_TLV_DB_SCALE(mix_tlv, -1500, 300, 0);
227 static const DECLARE_TLV_DB_SCALE(voice_mix_tlv, -1200, 300, 0);
228 static const DECLARE_TLV_DB_SCALE(pga_tlv, -1725, 75, 0);
229
230 static const struct snd_kcontrol_new wm8753_snd_controls[] = {
231 SOC_DOUBLE_R_TLV("PCM Volume", WM8753_LDAC, WM8753_RDAC, 0, 255, 0, dac_tlv),
232
233 SOC_DOUBLE_R_TLV("ADC Capture Volume", WM8753_LADC, WM8753_RADC, 0, 255, 0,
234 adc_tlv),
235
236 SOC_DOUBLE_R_TLV("Headphone Playback Volume", WM8753_LOUT1V, WM8753_ROUT1V,
237 0, 127, 0, out_tlv),
238 SOC_DOUBLE_R_TLV("Speaker Playback Volume", WM8753_LOUT2V, WM8753_ROUT2V, 0,
239 127, 0, out_tlv),
240
241 SOC_SINGLE_TLV("Mono Playback Volume", WM8753_MOUTV, 0, 127, 0, out_tlv),
242
243 SOC_DOUBLE_R_TLV("Bypass Playback Volume", WM8753_LOUTM1, WM8753_ROUTM1, 4, 7,
244 1, mix_tlv),
245 SOC_DOUBLE_R_TLV("Sidetone Playback Volume", WM8753_LOUTM2, WM8753_ROUTM2, 4,
246 7, 1, mix_tlv),
247 SOC_DOUBLE_R_TLV("Voice Playback Volume", WM8753_LOUTM2, WM8753_ROUTM2, 0, 7,
248 1, voice_mix_tlv),
249
250 SOC_DOUBLE_R("Headphone Playback ZC Switch", WM8753_LOUT1V, WM8753_ROUT1V, 7,
251 1, 0),
252 SOC_DOUBLE_R("Speaker Playback ZC Switch", WM8753_LOUT2V, WM8753_ROUT2V, 7,
253 1, 0),
254
255 SOC_SINGLE_TLV("Mono Bypass Playback Volume", WM8753_MOUTM1, 4, 7, 1, mix_tlv),
256 SOC_SINGLE_TLV("Mono Sidetone Playback Volume", WM8753_MOUTM2, 4, 7, 1,
257 mix_tlv),
258 SOC_SINGLE_TLV("Mono Voice Playback Volume", WM8753_MOUTM2, 0, 7, 1,
259 voice_mix_tlv),
260 SOC_SINGLE("Mono Playback ZC Switch", WM8753_MOUTV, 7, 1, 0),
261
262 SOC_ENUM("Bass Boost", wm8753_enum[0]),
263 SOC_ENUM("Bass Filter", wm8753_enum[1]),
264 SOC_SINGLE("Bass Volume", WM8753_BASS, 0, 15, 1),
265
266 SOC_SINGLE("Treble Volume", WM8753_TREBLE, 0, 15, 1),
267 SOC_ENUM("Treble Cut-off", wm8753_enum[2]),
268
269 SOC_DOUBLE_TLV("Sidetone Capture Volume", WM8753_RECMIX1, 0, 4, 7, 1,
270 rec_mix_tlv),
271 SOC_SINGLE_TLV("Voice Sidetone Capture Volume", WM8753_RECMIX2, 0, 7, 1,
272 rec_mix_tlv),
273
274 SOC_DOUBLE_R_TLV("Capture Volume", WM8753_LINVOL, WM8753_RINVOL, 0, 63, 0,
275 pga_tlv),
276 SOC_DOUBLE_R("Capture ZC Switch", WM8753_LINVOL, WM8753_RINVOL, 6, 1, 0),
277 SOC_DOUBLE_R("Capture Switch", WM8753_LINVOL, WM8753_RINVOL, 7, 1, 1),
278
279 SOC_ENUM("Capture Filter Select", wm8753_enum[23]),
280 SOC_ENUM("Capture Filter Cut-off", wm8753_enum[24]),
281 SOC_SINGLE("Capture Filter Switch", WM8753_ADC, 0, 1, 1),
282
283 SOC_SINGLE("ALC Capture Target Volume", WM8753_ALC1, 0, 7, 0),
284 SOC_SINGLE("ALC Capture Max Volume", WM8753_ALC1, 4, 7, 0),
285 SOC_ENUM("ALC Capture Function", wm8753_enum[3]),
286 SOC_SINGLE("ALC Capture ZC Switch", WM8753_ALC2, 8, 1, 0),
287 SOC_SINGLE("ALC Capture Hold Time", WM8753_ALC2, 0, 15, 1),
288 SOC_SINGLE("ALC Capture Decay Time", WM8753_ALC3, 4, 15, 1),
289 SOC_SINGLE("ALC Capture Attack Time", WM8753_ALC3, 0, 15, 0),
290 SOC_SINGLE("ALC Capture NG Threshold", WM8753_NGATE, 3, 31, 0),
291 SOC_ENUM("ALC Capture NG Type", wm8753_enum[4]),
292 SOC_SINGLE("ALC Capture NG Switch", WM8753_NGATE, 0, 1, 0),
293
294 SOC_ENUM("3D Function", wm8753_enum[5]),
295 SOC_ENUM("3D Upper Cut-off", wm8753_enum[6]),
296 SOC_ENUM("3D Lower Cut-off", wm8753_enum[7]),
297 SOC_SINGLE("3D Volume", WM8753_3D, 1, 15, 0),
298 SOC_SINGLE("3D Switch", WM8753_3D, 0, 1, 0),
299
300 SOC_SINGLE("Capture 6dB Attenuate", WM8753_ADCTL1, 2, 1, 0),
301 SOC_SINGLE("Playback 6dB Attenuate", WM8753_ADCTL1, 1, 1, 0),
302
303 SOC_ENUM("De-emphasis", wm8753_enum[8]),
304 SOC_ENUM("Playback Mono Mix", wm8753_enum[9]),
305 SOC_ENUM("Playback Phase", wm8753_enum[10]),
306
307 SOC_SINGLE_TLV("Mic2 Capture Volume", WM8753_INCTL1, 7, 3, 0, mic_preamp_tlv),
308 SOC_SINGLE_TLV("Mic1 Capture Volume", WM8753_INCTL1, 5, 3, 0, mic_preamp_tlv),
309
310 SOC_ENUM_EXT("DAI Mode", wm8753_enum[26], wm8753_get_dai, wm8753_set_dai),
311
312 SOC_ENUM("ADC Data Select", wm8753_enum[27]),
313 SOC_ENUM("ROUT2 Phase", wm8753_enum[28]),
314 };
315
316 /*
317 * _DAPM_ Controls
318 */
319
320 /* Left Mixer */
321 static const struct snd_kcontrol_new wm8753_left_mixer_controls[] = {
322 SOC_DAPM_SINGLE("Voice Playback Switch", WM8753_LOUTM2, 8, 1, 0),
323 SOC_DAPM_SINGLE("Sidetone Playback Switch", WM8753_LOUTM2, 7, 1, 0),
324 SOC_DAPM_SINGLE("Left Playback Switch", WM8753_LOUTM1, 8, 1, 0),
325 SOC_DAPM_SINGLE("Bypass Playback Switch", WM8753_LOUTM1, 7, 1, 0),
326 };
327
328 /* Right mixer */
329 static const struct snd_kcontrol_new wm8753_right_mixer_controls[] = {
330 SOC_DAPM_SINGLE("Voice Playback Switch", WM8753_ROUTM2, 8, 1, 0),
331 SOC_DAPM_SINGLE("Sidetone Playback Switch", WM8753_ROUTM2, 7, 1, 0),
332 SOC_DAPM_SINGLE("Right Playback Switch", WM8753_ROUTM1, 8, 1, 0),
333 SOC_DAPM_SINGLE("Bypass Playback Switch", WM8753_ROUTM1, 7, 1, 0),
334 };
335
336 /* Mono mixer */
337 static const struct snd_kcontrol_new wm8753_mono_mixer_controls[] = {
338 SOC_DAPM_SINGLE("Left Playback Switch", WM8753_MOUTM1, 8, 1, 0),
339 SOC_DAPM_SINGLE("Right Playback Switch", WM8753_MOUTM2, 8, 1, 0),
340 SOC_DAPM_SINGLE("Voice Playback Switch", WM8753_MOUTM2, 3, 1, 0),
341 SOC_DAPM_SINGLE("Sidetone Playback Switch", WM8753_MOUTM2, 7, 1, 0),
342 SOC_DAPM_SINGLE("Bypass Playback Switch", WM8753_MOUTM1, 7, 1, 0),
343 };
344
345 /* Mono 2 Mux */
346 static const struct snd_kcontrol_new wm8753_mono2_controls =
347 SOC_DAPM_ENUM("Route", wm8753_enum[17]);
348
349 /* Out 3 Mux */
350 static const struct snd_kcontrol_new wm8753_out3_controls =
351 SOC_DAPM_ENUM("Route", wm8753_enum[18]);
352
353 /* Out 4 Mux */
354 static const struct snd_kcontrol_new wm8753_out4_controls =
355 SOC_DAPM_ENUM("Route", wm8753_enum[19]);
356
357 /* ADC Mono Mix */
358 static const struct snd_kcontrol_new wm8753_adc_mono_controls =
359 SOC_DAPM_ENUM("Route", wm8753_enum[22]);
360
361 /* Record mixer */
362 static const struct snd_kcontrol_new wm8753_record_mixer_controls[] = {
363 SOC_DAPM_SINGLE("Voice Capture Switch", WM8753_RECMIX2, 3, 1, 0),
364 SOC_DAPM_SINGLE("Left Capture Switch", WM8753_RECMIX1, 3, 1, 0),
365 SOC_DAPM_SINGLE("Right Capture Switch", WM8753_RECMIX1, 7, 1, 0),
366 };
367
368 /* Left ADC mux */
369 static const struct snd_kcontrol_new wm8753_adc_left_controls =
370 SOC_DAPM_ENUM("Route", wm8753_enum[21]);
371
372 /* Right ADC mux */
373 static const struct snd_kcontrol_new wm8753_adc_right_controls =
374 SOC_DAPM_ENUM("Route", wm8753_enum[20]);
375
376 /* MIC mux */
377 static const struct snd_kcontrol_new wm8753_mic_mux_controls =
378 SOC_DAPM_ENUM("Route", wm8753_enum[16]);
379
380 /* ALC mixer */
381 static const struct snd_kcontrol_new wm8753_alc_mixer_controls[] = {
382 SOC_DAPM_SINGLE("Line Capture Switch", WM8753_INCTL2, 3, 1, 0),
383 SOC_DAPM_SINGLE("Mic2 Capture Switch", WM8753_INCTL2, 2, 1, 0),
384 SOC_DAPM_SINGLE("Mic1 Capture Switch", WM8753_INCTL2, 1, 1, 0),
385 SOC_DAPM_SINGLE("Rx Capture Switch", WM8753_INCTL2, 0, 1, 0),
386 };
387
388 /* Left Line mux */
389 static const struct snd_kcontrol_new wm8753_line_left_controls =
390 SOC_DAPM_ENUM("Route", wm8753_enum[14]);
391
392 /* Right Line mux */
393 static const struct snd_kcontrol_new wm8753_line_right_controls =
394 SOC_DAPM_ENUM("Route", wm8753_enum[13]);
395
396 /* Mono Line mux */
397 static const struct snd_kcontrol_new wm8753_line_mono_controls =
398 SOC_DAPM_ENUM("Route", wm8753_enum[12]);
399
400 /* Line mux and mixer */
401 static const struct snd_kcontrol_new wm8753_line_mux_mix_controls =
402 SOC_DAPM_ENUM("Route", wm8753_enum[11]);
403
404 /* Rx mux and mixer */
405 static const struct snd_kcontrol_new wm8753_rx_mux_mix_controls =
406 SOC_DAPM_ENUM("Route", wm8753_enum[15]);
407
408 /* Mic Selector Mux */
409 static const struct snd_kcontrol_new wm8753_mic_sel_mux_controls =
410 SOC_DAPM_ENUM("Route", wm8753_enum[25]);
411
412 static const struct snd_soc_dapm_widget wm8753_dapm_widgets[] = {
413 SND_SOC_DAPM_MICBIAS("Mic Bias", WM8753_PWR1, 5, 0),
414 SND_SOC_DAPM_MIXER("Left Mixer", WM8753_PWR4, 0, 0,
415 &wm8753_left_mixer_controls[0], ARRAY_SIZE(wm8753_left_mixer_controls)),
416 SND_SOC_DAPM_PGA("Left Out 1", WM8753_PWR3, 8, 0, NULL, 0),
417 SND_SOC_DAPM_PGA("Left Out 2", WM8753_PWR3, 6, 0, NULL, 0),
418 SND_SOC_DAPM_DAC("Left DAC", "Left HiFi Playback", WM8753_PWR1, 3, 0),
419 SND_SOC_DAPM_OUTPUT("LOUT1"),
420 SND_SOC_DAPM_OUTPUT("LOUT2"),
421 SND_SOC_DAPM_MIXER("Right Mixer", WM8753_PWR4, 1, 0,
422 &wm8753_right_mixer_controls[0], ARRAY_SIZE(wm8753_right_mixer_controls)),
423 SND_SOC_DAPM_PGA("Right Out 1", WM8753_PWR3, 7, 0, NULL, 0),
424 SND_SOC_DAPM_PGA("Right Out 2", WM8753_PWR3, 5, 0, NULL, 0),
425 SND_SOC_DAPM_DAC("Right DAC", "Right HiFi Playback", WM8753_PWR1, 2, 0),
426 SND_SOC_DAPM_OUTPUT("ROUT1"),
427 SND_SOC_DAPM_OUTPUT("ROUT2"),
428 SND_SOC_DAPM_MIXER("Mono Mixer", WM8753_PWR4, 2, 0,
429 &wm8753_mono_mixer_controls[0], ARRAY_SIZE(wm8753_mono_mixer_controls)),
430 SND_SOC_DAPM_PGA("Mono Out 1", WM8753_PWR3, 2, 0, NULL, 0),
431 SND_SOC_DAPM_PGA("Mono Out 2", WM8753_PWR3, 1, 0, NULL, 0),
432 SND_SOC_DAPM_DAC("Voice DAC", "Voice Playback", WM8753_PWR1, 4, 0),
433 SND_SOC_DAPM_OUTPUT("MONO1"),
434 SND_SOC_DAPM_MUX("Mono 2 Mux", SND_SOC_NOPM, 0, 0, &wm8753_mono2_controls),
435 SND_SOC_DAPM_OUTPUT("MONO2"),
436 SND_SOC_DAPM_MIXER("Out3 Left + Right", -1, 0, 0, NULL, 0),
437 SND_SOC_DAPM_MUX("Out3 Mux", SND_SOC_NOPM, 0, 0, &wm8753_out3_controls),
438 SND_SOC_DAPM_PGA("Out 3", WM8753_PWR3, 4, 0, NULL, 0),
439 SND_SOC_DAPM_OUTPUT("OUT3"),
440 SND_SOC_DAPM_MUX("Out4 Mux", SND_SOC_NOPM, 0, 0, &wm8753_out4_controls),
441 SND_SOC_DAPM_PGA("Out 4", WM8753_PWR3, 3, 0, NULL, 0),
442 SND_SOC_DAPM_OUTPUT("OUT4"),
443 SND_SOC_DAPM_MIXER("Playback Mixer", WM8753_PWR4, 3, 0,
444 &wm8753_record_mixer_controls[0],
445 ARRAY_SIZE(wm8753_record_mixer_controls)),
446 SND_SOC_DAPM_ADC("Left ADC", "Left Capture", WM8753_PWR2, 3, 0),
447 SND_SOC_DAPM_ADC("Right ADC", "Right Capture", WM8753_PWR2, 2, 0),
448 SND_SOC_DAPM_MUX("Capture Left Mixer", SND_SOC_NOPM, 0, 0,
449 &wm8753_adc_mono_controls),
450 SND_SOC_DAPM_MUX("Capture Right Mixer", SND_SOC_NOPM, 0, 0,
451 &wm8753_adc_mono_controls),
452 SND_SOC_DAPM_MUX("Capture Left Mux", SND_SOC_NOPM, 0, 0,
453 &wm8753_adc_left_controls),
454 SND_SOC_DAPM_MUX("Capture Right Mux", SND_SOC_NOPM, 0, 0,
455 &wm8753_adc_right_controls),
456 SND_SOC_DAPM_MUX("Mic Sidetone Mux", SND_SOC_NOPM, 0, 0,
457 &wm8753_mic_mux_controls),
458 SND_SOC_DAPM_PGA("Left Capture Volume", WM8753_PWR2, 5, 0, NULL, 0),
459 SND_SOC_DAPM_PGA("Right Capture Volume", WM8753_PWR2, 4, 0, NULL, 0),
460 SND_SOC_DAPM_MIXER("ALC Mixer", WM8753_PWR2, 6, 0,
461 &wm8753_alc_mixer_controls[0], ARRAY_SIZE(wm8753_alc_mixer_controls)),
462 SND_SOC_DAPM_MUX("Line Left Mux", SND_SOC_NOPM, 0, 0,
463 &wm8753_line_left_controls),
464 SND_SOC_DAPM_MUX("Line Right Mux", SND_SOC_NOPM, 0, 0,
465 &wm8753_line_right_controls),
466 SND_SOC_DAPM_MUX("Line Mono Mux", SND_SOC_NOPM, 0, 0,
467 &wm8753_line_mono_controls),
468 SND_SOC_DAPM_MUX("Line Mixer", WM8753_PWR2, 0, 0,
469 &wm8753_line_mux_mix_controls),
470 SND_SOC_DAPM_MUX("Rx Mixer", WM8753_PWR2, 1, 0,
471 &wm8753_rx_mux_mix_controls),
472 SND_SOC_DAPM_PGA("Mic 1 Volume", WM8753_PWR2, 8, 0, NULL, 0),
473 SND_SOC_DAPM_PGA("Mic 2 Volume", WM8753_PWR2, 7, 0, NULL, 0),
474 SND_SOC_DAPM_MUX("Mic Selection Mux", SND_SOC_NOPM, 0, 0,
475 &wm8753_mic_sel_mux_controls),
476 SND_SOC_DAPM_INPUT("LINE1"),
477 SND_SOC_DAPM_INPUT("LINE2"),
478 SND_SOC_DAPM_INPUT("RXP"),
479 SND_SOC_DAPM_INPUT("RXN"),
480 SND_SOC_DAPM_INPUT("ACIN"),
481 SND_SOC_DAPM_OUTPUT("ACOP"),
482 SND_SOC_DAPM_INPUT("MIC1N"),
483 SND_SOC_DAPM_INPUT("MIC1"),
484 SND_SOC_DAPM_INPUT("MIC2N"),
485 SND_SOC_DAPM_INPUT("MIC2"),
486 SND_SOC_DAPM_VMID("VREF"),
487 };
488
489 static const struct snd_soc_dapm_route audio_map[] = {
490 /* left mixer */
491 {"Left Mixer", "Left Playback Switch", "Left DAC"},
492 {"Left Mixer", "Voice Playback Switch", "Voice DAC"},
493 {"Left Mixer", "Sidetone Playback Switch", "Mic Sidetone Mux"},
494 {"Left Mixer", "Bypass Playback Switch", "Line Left Mux"},
495
496 /* right mixer */
497 {"Right Mixer", "Right Playback Switch", "Right DAC"},
498 {"Right Mixer", "Voice Playback Switch", "Voice DAC"},
499 {"Right Mixer", "Sidetone Playback Switch", "Mic Sidetone Mux"},
500 {"Right Mixer", "Bypass Playback Switch", "Line Right Mux"},
501
502 /* mono mixer */
503 {"Mono Mixer", "Voice Playback Switch", "Voice DAC"},
504 {"Mono Mixer", "Left Playback Switch", "Left DAC"},
505 {"Mono Mixer", "Right Playback Switch", "Right DAC"},
506 {"Mono Mixer", "Sidetone Playback Switch", "Mic Sidetone Mux"},
507 {"Mono Mixer", "Bypass Playback Switch", "Line Mono Mux"},
508
509 /* left out */
510 {"Left Out 1", NULL, "Left Mixer"},
511 {"Left Out 2", NULL, "Left Mixer"},
512 {"LOUT1", NULL, "Left Out 1"},
513 {"LOUT2", NULL, "Left Out 2"},
514
515 /* right out */
516 {"Right Out 1", NULL, "Right Mixer"},
517 {"Right Out 2", NULL, "Right Mixer"},
518 {"ROUT1", NULL, "Right Out 1"},
519 {"ROUT2", NULL, "Right Out 2"},
520
521 /* mono 1 out */
522 {"Mono Out 1", NULL, "Mono Mixer"},
523 {"MONO1", NULL, "Mono Out 1"},
524
525 /* mono 2 out */
526 {"Mono 2 Mux", "Left + Right", "Out3 Left + Right"},
527 {"Mono 2 Mux", "Inverted Mono 1", "MONO1"},
528 {"Mono 2 Mux", "Left", "Left Mixer"},
529 {"Mono 2 Mux", "Right", "Right Mixer"},
530 {"Mono Out 2", NULL, "Mono 2 Mux"},
531 {"MONO2", NULL, "Mono Out 2"},
532
533 /* out 3 */
534 {"Out3 Left + Right", NULL, "Left Mixer"},
535 {"Out3 Left + Right", NULL, "Right Mixer"},
536 {"Out3 Mux", "VREF", "VREF"},
537 {"Out3 Mux", "Left + Right", "Out3 Left + Right"},
538 {"Out3 Mux", "ROUT2", "ROUT2"},
539 {"Out 3", NULL, "Out3 Mux"},
540 {"OUT3", NULL, "Out 3"},
541
542 /* out 4 */
543 {"Out4 Mux", "VREF", "VREF"},
544 {"Out4 Mux", "Capture ST", "Playback Mixer"},
545 {"Out4 Mux", "LOUT2", "LOUT2"},
546 {"Out 4", NULL, "Out4 Mux"},
547 {"OUT4", NULL, "Out 4"},
548
549 /* record mixer */
550 {"Playback Mixer", "Left Capture Switch", "Left Mixer"},
551 {"Playback Mixer", "Voice Capture Switch", "Mono Mixer"},
552 {"Playback Mixer", "Right Capture Switch", "Right Mixer"},
553
554 /* Mic/SideTone Mux */
555 {"Mic Sidetone Mux", "Left PGA", "Left Capture Volume"},
556 {"Mic Sidetone Mux", "Right PGA", "Right Capture Volume"},
557 {"Mic Sidetone Mux", "Mic 1", "Mic 1 Volume"},
558 {"Mic Sidetone Mux", "Mic 2", "Mic 2 Volume"},
559
560 /* Capture Left Mux */
561 {"Capture Left Mux", "PGA", "Left Capture Volume"},
562 {"Capture Left Mux", "Line or RXP-RXN", "Line Left Mux"},
563 {"Capture Left Mux", "Line", "LINE1"},
564
565 /* Capture Right Mux */
566 {"Capture Right Mux", "PGA", "Right Capture Volume"},
567 {"Capture Right Mux", "Line or RXP-RXN", "Line Right Mux"},
568 {"Capture Right Mux", "Sidetone", "Playback Mixer"},
569
570 /* Mono Capture mixer-mux */
571 {"Capture Right Mixer", "Stereo", "Capture Right Mux"},
572 {"Capture Left Mixer", "Stereo", "Capture Left Mux"},
573 {"Capture Left Mixer", "Analogue Mix Left", "Capture Left Mux"},
574 {"Capture Left Mixer", "Analogue Mix Left", "Capture Right Mux"},
575 {"Capture Right Mixer", "Analogue Mix Right", "Capture Left Mux"},
576 {"Capture Right Mixer", "Analogue Mix Right", "Capture Right Mux"},
577 {"Capture Left Mixer", "Digital Mono Mix", "Capture Left Mux"},
578 {"Capture Left Mixer", "Digital Mono Mix", "Capture Right Mux"},
579 {"Capture Right Mixer", "Digital Mono Mix", "Capture Left Mux"},
580 {"Capture Right Mixer", "Digital Mono Mix", "Capture Right Mux"},
581
582 /* ADC */
583 {"Left ADC", NULL, "Capture Left Mixer"},
584 {"Right ADC", NULL, "Capture Right Mixer"},
585
586 /* Left Capture Volume */
587 {"Left Capture Volume", NULL, "ACIN"},
588
589 /* Right Capture Volume */
590 {"Right Capture Volume", NULL, "Mic 2 Volume"},
591
592 /* ALC Mixer */
593 {"ALC Mixer", "Line Capture Switch", "Line Mixer"},
594 {"ALC Mixer", "Mic2 Capture Switch", "Mic 2 Volume"},
595 {"ALC Mixer", "Mic1 Capture Switch", "Mic 1 Volume"},
596 {"ALC Mixer", "Rx Capture Switch", "Rx Mixer"},
597
598 /* Line Left Mux */
599 {"Line Left Mux", "Line 1", "LINE1"},
600 {"Line Left Mux", "Rx Mix", "Rx Mixer"},
601
602 /* Line Right Mux */
603 {"Line Right Mux", "Line 2", "LINE2"},
604 {"Line Right Mux", "Rx Mix", "Rx Mixer"},
605
606 /* Line Mono Mux */
607 {"Line Mono Mux", "Line Mix", "Line Mixer"},
608 {"Line Mono Mux", "Rx Mix", "Rx Mixer"},
609
610 /* Line Mixer/Mux */
611 {"Line Mixer", "Line 1 + 2", "LINE1"},
612 {"Line Mixer", "Line 1 - 2", "LINE1"},
613 {"Line Mixer", "Line 1 + 2", "LINE2"},
614 {"Line Mixer", "Line 1 - 2", "LINE2"},
615 {"Line Mixer", "Line 1", "LINE1"},
616 {"Line Mixer", "Line 2", "LINE2"},
617
618 /* Rx Mixer/Mux */
619 {"Rx Mixer", "RXP - RXN", "RXP"},
620 {"Rx Mixer", "RXP + RXN", "RXP"},
621 {"Rx Mixer", "RXP - RXN", "RXN"},
622 {"Rx Mixer", "RXP + RXN", "RXN"},
623 {"Rx Mixer", "RXP", "RXP"},
624 {"Rx Mixer", "RXN", "RXN"},
625
626 /* Mic 1 Volume */
627 {"Mic 1 Volume", NULL, "MIC1N"},
628 {"Mic 1 Volume", NULL, "Mic Selection Mux"},
629
630 /* Mic 2 Volume */
631 {"Mic 2 Volume", NULL, "MIC2N"},
632 {"Mic 2 Volume", NULL, "MIC2"},
633
634 /* Mic Selector Mux */
635 {"Mic Selection Mux", "Mic 1", "MIC1"},
636 {"Mic Selection Mux", "Mic 2", "MIC2N"},
637 {"Mic Selection Mux", "Mic 3", "MIC2"},
638
639 /* ACOP */
640 {"ACOP", NULL, "ALC Mixer"},
641 };
642
643 static int wm8753_add_widgets(struct snd_soc_codec *codec)
644 {
645 struct snd_soc_dapm_context *dapm = &codec->dapm;
646
647 snd_soc_dapm_new_controls(dapm, wm8753_dapm_widgets,
648 ARRAY_SIZE(wm8753_dapm_widgets));
649 snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map));
650
651 return 0;
652 }
653
654 /* PLL divisors */
655 struct _pll_div {
656 u32 div2:1;
657 u32 n:4;
658 u32 k:24;
659 };
660
661 /* The size in bits of the pll divide multiplied by 10
662 * to allow rounding later */
663 #define FIXED_PLL_SIZE ((1 << 22) * 10)
664
665 static void pll_factors(struct _pll_div *pll_div, unsigned int target,
666 unsigned int source)
667 {
668 u64 Kpart;
669 unsigned int K, Ndiv, Nmod;
670
671 Ndiv = target / source;
672 if (Ndiv < 6) {
673 source >>= 1;
674 pll_div->div2 = 1;
675 Ndiv = target / source;
676 } else
677 pll_div->div2 = 0;
678
679 if ((Ndiv < 6) || (Ndiv > 12))
680 printk(KERN_WARNING
681 "wm8753: unsupported N = %u\n", Ndiv);
682
683 pll_div->n = Ndiv;
684 Nmod = target % source;
685 Kpart = FIXED_PLL_SIZE * (long long)Nmod;
686
687 do_div(Kpart, source);
688
689 K = Kpart & 0xFFFFFFFF;
690
691 /* Check if we need to round */
692 if ((K % 10) >= 5)
693 K += 5;
694
695 /* Move down to proper range now rounding is done */
696 K /= 10;
697
698 pll_div->k = K;
699 }
700
701 static int wm8753_set_dai_pll(struct snd_soc_dai *codec_dai, int pll_id,
702 int source, unsigned int freq_in, unsigned int freq_out)
703 {
704 u16 reg, enable;
705 int offset;
706 struct snd_soc_codec *codec = codec_dai->codec;
707
708 if (pll_id < WM8753_PLL1 || pll_id > WM8753_PLL2)
709 return -ENODEV;
710
711 if (pll_id == WM8753_PLL1) {
712 offset = 0;
713 enable = 0x10;
714 reg = snd_soc_read(codec, WM8753_CLOCK) & 0xffef;
715 } else {
716 offset = 4;
717 enable = 0x8;
718 reg = snd_soc_read(codec, WM8753_CLOCK) & 0xfff7;
719 }
720
721 if (!freq_in || !freq_out) {
722 /* disable PLL */
723 snd_soc_write(codec, WM8753_PLL1CTL1 + offset, 0x0026);
724 snd_soc_write(codec, WM8753_CLOCK, reg);
725 return 0;
726 } else {
727 u16 value = 0;
728 struct _pll_div pll_div;
729
730 pll_factors(&pll_div, freq_out * 8, freq_in);
731
732 /* set up N and K PLL divisor ratios */
733 /* bits 8:5 = PLL_N, bits 3:0 = PLL_K[21:18] */
734 value = (pll_div.n << 5) + ((pll_div.k & 0x3c0000) >> 18);
735 snd_soc_write(codec, WM8753_PLL1CTL2 + offset, value);
736
737 /* bits 8:0 = PLL_K[17:9] */
738 value = (pll_div.k & 0x03fe00) >> 9;
739 snd_soc_write(codec, WM8753_PLL1CTL3 + offset, value);
740
741 /* bits 8:0 = PLL_K[8:0] */
742 value = pll_div.k & 0x0001ff;
743 snd_soc_write(codec, WM8753_PLL1CTL4 + offset, value);
744
745 /* set PLL as input and enable */
746 snd_soc_write(codec, WM8753_PLL1CTL1 + offset, 0x0027 |
747 (pll_div.div2 << 3));
748 snd_soc_write(codec, WM8753_CLOCK, reg | enable);
749 }
750 return 0;
751 }
752
753 struct _coeff_div {
754 u32 mclk;
755 u32 rate;
756 u8 sr:5;
757 u8 usb:1;
758 };
759
760 /* codec hifi mclk (after PLL) clock divider coefficients */
761 static const struct _coeff_div coeff_div[] = {
762 /* 8k */
763 {12288000, 8000, 0x6, 0x0},
764 {11289600, 8000, 0x16, 0x0},
765 {18432000, 8000, 0x7, 0x0},
766 {16934400, 8000, 0x17, 0x0},
767 {12000000, 8000, 0x6, 0x1},
768
769 /* 11.025k */
770 {11289600, 11025, 0x18, 0x0},
771 {16934400, 11025, 0x19, 0x0},
772 {12000000, 11025, 0x19, 0x1},
773
774 /* 16k */
775 {12288000, 16000, 0xa, 0x0},
776 {18432000, 16000, 0xb, 0x0},
777 {12000000, 16000, 0xa, 0x1},
778
779 /* 22.05k */
780 {11289600, 22050, 0x1a, 0x0},
781 {16934400, 22050, 0x1b, 0x0},
782 {12000000, 22050, 0x1b, 0x1},
783
784 /* 32k */
785 {12288000, 32000, 0xc, 0x0},
786 {18432000, 32000, 0xd, 0x0},
787 {12000000, 32000, 0xa, 0x1},
788
789 /* 44.1k */
790 {11289600, 44100, 0x10, 0x0},
791 {16934400, 44100, 0x11, 0x0},
792 {12000000, 44100, 0x11, 0x1},
793
794 /* 48k */
795 {12288000, 48000, 0x0, 0x0},
796 {18432000, 48000, 0x1, 0x0},
797 {12000000, 48000, 0x0, 0x1},
798
799 /* 88.2k */
800 {11289600, 88200, 0x1e, 0x0},
801 {16934400, 88200, 0x1f, 0x0},
802 {12000000, 88200, 0x1f, 0x1},
803
804 /* 96k */
805 {12288000, 96000, 0xe, 0x0},
806 {18432000, 96000, 0xf, 0x0},
807 {12000000, 96000, 0xe, 0x1},
808 };
809
810 static int get_coeff(int mclk, int rate)
811 {
812 int i;
813
814 for (i = 0; i < ARRAY_SIZE(coeff_div); i++) {
815 if (coeff_div[i].rate == rate && coeff_div[i].mclk == mclk)
816 return i;
817 }
818 return -EINVAL;
819 }
820
821 /*
822 * Clock after PLL and dividers
823 */
824 static int wm8753_set_dai_sysclk(struct snd_soc_dai *codec_dai,
825 int clk_id, unsigned int freq, int dir)
826 {
827 struct snd_soc_codec *codec = codec_dai->codec;
828 struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);
829
830 switch (freq) {
831 case 11289600:
832 case 12000000:
833 case 12288000:
834 case 16934400:
835 case 18432000:
836 if (clk_id == WM8753_MCLK) {
837 wm8753->sysclk = freq;
838 return 0;
839 } else if (clk_id == WM8753_PCMCLK) {
840 wm8753->pcmclk = freq;
841 return 0;
842 }
843 break;
844 }
845 return -EINVAL;
846 }
847
848 /*
849 * Set's ADC and Voice DAC format.
850 */
851 static int wm8753_vdac_adc_set_dai_fmt(struct snd_soc_codec *codec,
852 unsigned int fmt)
853 {
854 u16 voice = snd_soc_read(codec, WM8753_PCM) & 0x01ec;
855
856 /* interface format */
857 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
858 case SND_SOC_DAIFMT_I2S:
859 voice |= 0x0002;
860 break;
861 case SND_SOC_DAIFMT_RIGHT_J:
862 break;
863 case SND_SOC_DAIFMT_LEFT_J:
864 voice |= 0x0001;
865 break;
866 case SND_SOC_DAIFMT_DSP_A:
867 voice |= 0x0003;
868 break;
869 case SND_SOC_DAIFMT_DSP_B:
870 voice |= 0x0013;
871 break;
872 default:
873 return -EINVAL;
874 }
875
876 snd_soc_write(codec, WM8753_PCM, voice);
877 return 0;
878 }
879
880 /*
881 * Set PCM DAI bit size and sample rate.
882 */
883 static int wm8753_pcm_hw_params(struct snd_pcm_substream *substream,
884 struct snd_pcm_hw_params *params,
885 struct snd_soc_dai *dai)
886 {
887 struct snd_soc_pcm_runtime *rtd = substream->private_data;
888 struct snd_soc_codec *codec = rtd->codec;
889 struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);
890 u16 voice = snd_soc_read(codec, WM8753_PCM) & 0x01f3;
891 u16 srate = snd_soc_read(codec, WM8753_SRATE1) & 0x017f;
892
893 /* bit size */
894 switch (params_format(params)) {
895 case SNDRV_PCM_FORMAT_S16_LE:
896 break;
897 case SNDRV_PCM_FORMAT_S20_3LE:
898 voice |= 0x0004;
899 break;
900 case SNDRV_PCM_FORMAT_S24_LE:
901 voice |= 0x0008;
902 break;
903 case SNDRV_PCM_FORMAT_S32_LE:
904 voice |= 0x000c;
905 break;
906 }
907
908 /* sample rate */
909 if (params_rate(params) * 384 == wm8753->pcmclk)
910 srate |= 0x80;
911 snd_soc_write(codec, WM8753_SRATE1, srate);
912
913 snd_soc_write(codec, WM8753_PCM, voice);
914 return 0;
915 }
916
917 /*
918 * Set's PCM dai fmt and BCLK.
919 */
920 static int wm8753_pcm_set_dai_fmt(struct snd_soc_codec *codec,
921 unsigned int fmt)
922 {
923 u16 voice, ioctl;
924
925 voice = snd_soc_read(codec, WM8753_PCM) & 0x011f;
926 ioctl = snd_soc_read(codec, WM8753_IOCTL) & 0x015d;
927
928 /* set master/slave audio interface */
929 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
930 case SND_SOC_DAIFMT_CBS_CFS:
931 break;
932 case SND_SOC_DAIFMT_CBM_CFM:
933 ioctl |= 0x2;
934 case SND_SOC_DAIFMT_CBM_CFS:
935 voice |= 0x0040;
936 break;
937 default:
938 return -EINVAL;
939 }
940
941 /* clock inversion */
942 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
943 case SND_SOC_DAIFMT_DSP_A:
944 case SND_SOC_DAIFMT_DSP_B:
945 /* frame inversion not valid for DSP modes */
946 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
947 case SND_SOC_DAIFMT_NB_NF:
948 break;
949 case SND_SOC_DAIFMT_IB_NF:
950 voice |= 0x0080;
951 break;
952 default:
953 return -EINVAL;
954 }
955 break;
956 case SND_SOC_DAIFMT_I2S:
957 case SND_SOC_DAIFMT_RIGHT_J:
958 case SND_SOC_DAIFMT_LEFT_J:
959 voice &= ~0x0010;
960 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
961 case SND_SOC_DAIFMT_NB_NF:
962 break;
963 case SND_SOC_DAIFMT_IB_IF:
964 voice |= 0x0090;
965 break;
966 case SND_SOC_DAIFMT_IB_NF:
967 voice |= 0x0080;
968 break;
969 case SND_SOC_DAIFMT_NB_IF:
970 voice |= 0x0010;
971 break;
972 default:
973 return -EINVAL;
974 }
975 break;
976 default:
977 return -EINVAL;
978 }
979
980 snd_soc_write(codec, WM8753_PCM, voice);
981 snd_soc_write(codec, WM8753_IOCTL, ioctl);
982 return 0;
983 }
984
985 static int wm8753_set_dai_clkdiv(struct snd_soc_dai *codec_dai,
986 int div_id, int div)
987 {
988 struct snd_soc_codec *codec = codec_dai->codec;
989 u16 reg;
990
991 switch (div_id) {
992 case WM8753_PCMDIV:
993 reg = snd_soc_read(codec, WM8753_CLOCK) & 0x003f;
994 snd_soc_write(codec, WM8753_CLOCK, reg | div);
995 break;
996 case WM8753_BCLKDIV:
997 reg = snd_soc_read(codec, WM8753_SRATE2) & 0x01c7;
998 snd_soc_write(codec, WM8753_SRATE2, reg | div);
999 break;
1000 case WM8753_VXCLKDIV:
1001 reg = snd_soc_read(codec, WM8753_SRATE2) & 0x003f;
1002 snd_soc_write(codec, WM8753_SRATE2, reg | div);
1003 break;
1004 default:
1005 return -EINVAL;
1006 }
1007 return 0;
1008 }
1009
1010 /*
1011 * Set's HiFi DAC format.
1012 */
1013 static int wm8753_hdac_set_dai_fmt(struct snd_soc_codec *codec,
1014 unsigned int fmt)
1015 {
1016 u16 hifi = snd_soc_read(codec, WM8753_HIFI) & 0x01e0;
1017
1018 /* interface format */
1019 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
1020 case SND_SOC_DAIFMT_I2S:
1021 hifi |= 0x0002;
1022 break;
1023 case SND_SOC_DAIFMT_RIGHT_J:
1024 break;
1025 case SND_SOC_DAIFMT_LEFT_J:
1026 hifi |= 0x0001;
1027 break;
1028 case SND_SOC_DAIFMT_DSP_A:
1029 hifi |= 0x0003;
1030 break;
1031 case SND_SOC_DAIFMT_DSP_B:
1032 hifi |= 0x0013;
1033 break;
1034 default:
1035 return -EINVAL;
1036 }
1037
1038 snd_soc_write(codec, WM8753_HIFI, hifi);
1039 return 0;
1040 }
1041
1042 /*
1043 * Set's I2S DAI format.
1044 */
1045 static int wm8753_i2s_set_dai_fmt(struct snd_soc_codec *codec,
1046 unsigned int fmt)
1047 {
1048 u16 ioctl, hifi;
1049
1050 hifi = snd_soc_read(codec, WM8753_HIFI) & 0x011f;
1051 ioctl = snd_soc_read(codec, WM8753_IOCTL) & 0x00ae;
1052
1053 /* set master/slave audio interface */
1054 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
1055 case SND_SOC_DAIFMT_CBS_CFS:
1056 break;
1057 case SND_SOC_DAIFMT_CBM_CFM:
1058 ioctl |= 0x1;
1059 case SND_SOC_DAIFMT_CBM_CFS:
1060 hifi |= 0x0040;
1061 break;
1062 default:
1063 return -EINVAL;
1064 }
1065
1066 /* clock inversion */
1067 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
1068 case SND_SOC_DAIFMT_DSP_A:
1069 case SND_SOC_DAIFMT_DSP_B:
1070 /* frame inversion not valid for DSP modes */
1071 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
1072 case SND_SOC_DAIFMT_NB_NF:
1073 break;
1074 case SND_SOC_DAIFMT_IB_NF:
1075 hifi |= 0x0080;
1076 break;
1077 default:
1078 return -EINVAL;
1079 }
1080 break;
1081 case SND_SOC_DAIFMT_I2S:
1082 case SND_SOC_DAIFMT_RIGHT_J:
1083 case SND_SOC_DAIFMT_LEFT_J:
1084 hifi &= ~0x0010;
1085 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
1086 case SND_SOC_DAIFMT_NB_NF:
1087 break;
1088 case SND_SOC_DAIFMT_IB_IF:
1089 hifi |= 0x0090;
1090 break;
1091 case SND_SOC_DAIFMT_IB_NF:
1092 hifi |= 0x0080;
1093 break;
1094 case SND_SOC_DAIFMT_NB_IF:
1095 hifi |= 0x0010;
1096 break;
1097 default:
1098 return -EINVAL;
1099 }
1100 break;
1101 default:
1102 return -EINVAL;
1103 }
1104
1105 snd_soc_write(codec, WM8753_HIFI, hifi);
1106 snd_soc_write(codec, WM8753_IOCTL, ioctl);
1107 return 0;
1108 }
1109
1110 /*
1111 * Set PCM DAI bit size and sample rate.
1112 */
1113 static int wm8753_i2s_hw_params(struct snd_pcm_substream *substream,
1114 struct snd_pcm_hw_params *params,
1115 struct snd_soc_dai *dai)
1116 {
1117 struct snd_soc_pcm_runtime *rtd = substream->private_data;
1118 struct snd_soc_codec *codec = rtd->codec;
1119 struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);
1120 u16 srate = snd_soc_read(codec, WM8753_SRATE1) & 0x01c0;
1121 u16 hifi = snd_soc_read(codec, WM8753_HIFI) & 0x01f3;
1122 int coeff;
1123
1124 /* is digital filter coefficient valid ? */
1125 coeff = get_coeff(wm8753->sysclk, params_rate(params));
1126 if (coeff < 0) {
1127 printk(KERN_ERR "wm8753 invalid MCLK or rate\n");
1128 return coeff;
1129 }
1130 snd_soc_write(codec, WM8753_SRATE1, srate | (coeff_div[coeff].sr << 1) |
1131 coeff_div[coeff].usb);
1132
1133 /* bit size */
1134 switch (params_format(params)) {
1135 case SNDRV_PCM_FORMAT_S16_LE:
1136 break;
1137 case SNDRV_PCM_FORMAT_S20_3LE:
1138 hifi |= 0x0004;
1139 break;
1140 case SNDRV_PCM_FORMAT_S24_LE:
1141 hifi |= 0x0008;
1142 break;
1143 case SNDRV_PCM_FORMAT_S32_LE:
1144 hifi |= 0x000c;
1145 break;
1146 }
1147
1148 snd_soc_write(codec, WM8753_HIFI, hifi);
1149 return 0;
1150 }
1151
1152 static int wm8753_mode1v_set_dai_fmt(struct snd_soc_codec *codec,
1153 unsigned int fmt)
1154 {
1155 u16 clock;
1156
1157 /* set clk source as pcmclk */
1158 clock = snd_soc_read(codec, WM8753_CLOCK) & 0xfffb;
1159 snd_soc_write(codec, WM8753_CLOCK, clock);
1160
1161 return wm8753_vdac_adc_set_dai_fmt(codec, fmt);
1162 }
1163
1164 static int wm8753_mode1h_set_dai_fmt(struct snd_soc_codec *codec,
1165 unsigned int fmt)
1166 {
1167 return wm8753_hdac_set_dai_fmt(codec, fmt);
1168 }
1169
1170 static int wm8753_mode2_set_dai_fmt(struct snd_soc_codec *codec,
1171 unsigned int fmt)
1172 {
1173 u16 clock;
1174
1175 /* set clk source as pcmclk */
1176 clock = snd_soc_read(codec, WM8753_CLOCK) & 0xfffb;
1177 snd_soc_write(codec, WM8753_CLOCK, clock);
1178
1179 return wm8753_vdac_adc_set_dai_fmt(codec, fmt);
1180 }
1181
1182 static int wm8753_mode3_4_set_dai_fmt(struct snd_soc_codec *codec,
1183 unsigned int fmt)
1184 {
1185 u16 clock;
1186
1187 /* set clk source as mclk */
1188 clock = snd_soc_read(codec, WM8753_CLOCK) & 0xfffb;
1189 snd_soc_write(codec, WM8753_CLOCK, clock | 0x4);
1190
1191 if (wm8753_hdac_set_dai_fmt(codec, fmt) < 0)
1192 return -EINVAL;
1193 return wm8753_vdac_adc_set_dai_fmt(codec, fmt);
1194 }
1195
1196 static int wm8753_hifi_write_dai_fmt(struct snd_soc_codec *codec,
1197 unsigned int fmt)
1198 {
1199 struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);
1200 int ret = 0;
1201
1202 switch (wm8753->dai_func) {
1203 case 0:
1204 ret = wm8753_mode1h_set_dai_fmt(codec, fmt);
1205 break;
1206 case 1:
1207 ret = wm8753_mode2_set_dai_fmt(codec, fmt);
1208 break;
1209 case 2:
1210 case 3:
1211 ret = wm8753_mode3_4_set_dai_fmt(codec, fmt);
1212 break;
1213 default:
1214 break;
1215 }
1216 if (ret)
1217 return ret;
1218
1219 return wm8753_i2s_set_dai_fmt(codec, fmt);
1220 }
1221
1222 static int wm8753_hifi_set_dai_fmt(struct snd_soc_dai *codec_dai,
1223 unsigned int fmt)
1224 {
1225 struct snd_soc_codec *codec = codec_dai->codec;
1226 struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);
1227
1228 wm8753->hifi_fmt = fmt;
1229
1230 return wm8753_hifi_write_dai_fmt(codec, fmt);
1231 };
1232
1233 static int wm8753_voice_write_dai_fmt(struct snd_soc_codec *codec,
1234 unsigned int fmt)
1235 {
1236 struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);
1237 int ret = 0;
1238
1239 if (wm8753->dai_func != 0)
1240 return 0;
1241
1242 ret = wm8753_mode1v_set_dai_fmt(codec, fmt);
1243 if (ret)
1244 return ret;
1245 ret = wm8753_pcm_set_dai_fmt(codec, fmt);
1246 if (ret)
1247 return ret;
1248
1249 return 0;
1250 };
1251
1252 static int wm8753_voice_set_dai_fmt(struct snd_soc_dai *codec_dai,
1253 unsigned int fmt)
1254 {
1255 struct snd_soc_codec *codec = codec_dai->codec;
1256 struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);
1257
1258 wm8753->voice_fmt = fmt;
1259
1260 return wm8753_voice_write_dai_fmt(codec, fmt);
1261 };
1262
1263 static int wm8753_mute(struct snd_soc_dai *dai, int mute)
1264 {
1265 struct snd_soc_codec *codec = dai->codec;
1266 u16 mute_reg = snd_soc_read(codec, WM8753_DAC) & 0xfff7;
1267 struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);
1268
1269 /* the digital mute covers the HiFi and Voice DAC's on the WM8753.
1270 * make sure we check if they are not both active when we mute */
1271 if (mute && wm8753->dai_func == 1) {
1272 if (!codec->active)
1273 snd_soc_write(codec, WM8753_DAC, mute_reg | 0x8);
1274 } else {
1275 if (mute)
1276 snd_soc_write(codec, WM8753_DAC, mute_reg | 0x8);
1277 else
1278 snd_soc_write(codec, WM8753_DAC, mute_reg);
1279 }
1280
1281 return 0;
1282 }
1283
1284 static int wm8753_set_bias_level(struct snd_soc_codec *codec,
1285 enum snd_soc_bias_level level)
1286 {
1287 u16 pwr_reg = snd_soc_read(codec, WM8753_PWR1) & 0xfe3e;
1288
1289 switch (level) {
1290 case SND_SOC_BIAS_ON:
1291 /* set vmid to 50k and unmute dac */
1292 snd_soc_write(codec, WM8753_PWR1, pwr_reg | 0x00c0);
1293 break;
1294 case SND_SOC_BIAS_PREPARE:
1295 /* set vmid to 5k for quick power up */
1296 snd_soc_write(codec, WM8753_PWR1, pwr_reg | 0x01c1);
1297 break;
1298 case SND_SOC_BIAS_STANDBY:
1299 /* mute dac and set vmid to 500k, enable VREF */
1300 snd_soc_write(codec, WM8753_PWR1, pwr_reg | 0x0141);
1301 break;
1302 case SND_SOC_BIAS_OFF:
1303 snd_soc_write(codec, WM8753_PWR1, 0x0001);
1304 break;
1305 }
1306 codec->dapm.bias_level = level;
1307 return 0;
1308 }
1309
1310 #define WM8753_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\
1311 SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 |\
1312 SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 |\
1313 SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000)
1314
1315 #define WM8753_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
1316 SNDRV_PCM_FMTBIT_S24_LE)
1317
1318 /*
1319 * The WM8753 supports up to 4 different and mutually exclusive DAI
1320 * configurations. This gives 2 PCM's available for use, hifi and voice.
1321 * NOTE: The Voice PCM cannot play or capture audio to the CPU as it's DAI
1322 * is connected between the wm8753 and a BT codec or GSM modem.
1323 *
1324 * 1. Voice over PCM DAI - HIFI DAC over HIFI DAI
1325 * 2. Voice over HIFI DAI - HIFI disabled
1326 * 3. Voice disabled - HIFI over HIFI
1327 * 4. Voice disabled - HIFI over HIFI, uses voice DAI LRC for capture
1328 */
1329 static struct snd_soc_dai_ops wm8753_dai_ops_hifi_mode = {
1330 .hw_params = wm8753_i2s_hw_params,
1331 .digital_mute = wm8753_mute,
1332 .set_fmt = wm8753_hifi_set_dai_fmt,
1333 .set_clkdiv = wm8753_set_dai_clkdiv,
1334 .set_pll = wm8753_set_dai_pll,
1335 .set_sysclk = wm8753_set_dai_sysclk,
1336 };
1337
1338 static struct snd_soc_dai_ops wm8753_dai_ops_voice_mode = {
1339 .hw_params = wm8753_pcm_hw_params,
1340 .digital_mute = wm8753_mute,
1341 .set_fmt = wm8753_voice_set_dai_fmt,
1342 .set_clkdiv = wm8753_set_dai_clkdiv,
1343 .set_pll = wm8753_set_dai_pll,
1344 .set_sysclk = wm8753_set_dai_sysclk,
1345 };
1346
1347 static struct snd_soc_dai_driver wm8753_dai[] = {
1348 /* DAI HiFi mode 1 */
1349 { .name = "wm8753-hifi",
1350 .playback = {
1351 .stream_name = "HiFi Playback",
1352 .channels_min = 1,
1353 .channels_max = 2,
1354 .rates = WM8753_RATES,
1355 .formats = WM8753_FORMATS
1356 },
1357 .capture = { /* dummy for fast DAI switching */
1358 .stream_name = "Capture",
1359 .channels_min = 1,
1360 .channels_max = 2,
1361 .rates = WM8753_RATES,
1362 .formats = WM8753_FORMATS
1363 },
1364 .ops = &wm8753_dai_ops_hifi_mode,
1365 },
1366 /* DAI Voice mode 1 */
1367 { .name = "wm8753-voice",
1368 .playback = {
1369 .stream_name = "Voice Playback",
1370 .channels_min = 1,
1371 .channels_max = 1,
1372 .rates = WM8753_RATES,
1373 .formats = WM8753_FORMATS,
1374 },
1375 .capture = {
1376 .stream_name = "Capture",
1377 .channels_min = 1,
1378 .channels_max = 2,
1379 .rates = WM8753_RATES,
1380 .formats = WM8753_FORMATS,
1381 },
1382 .ops = &wm8753_dai_ops_voice_mode,
1383 },
1384 };
1385
1386 static void wm8753_work(struct work_struct *work)
1387 {
1388 struct snd_soc_dapm_context *dapm =
1389 container_of(work, struct snd_soc_dapm_context,
1390 delayed_work.work);
1391 struct snd_soc_codec *codec = dapm->codec;
1392 wm8753_set_bias_level(codec, dapm->bias_level);
1393 }
1394
1395 static int wm8753_suspend(struct snd_soc_codec *codec, pm_message_t state)
1396 {
1397 wm8753_set_bias_level(codec, SND_SOC_BIAS_OFF);
1398 return 0;
1399 }
1400
1401 static int wm8753_resume(struct snd_soc_codec *codec)
1402 {
1403 u16 *reg_cache = codec->reg_cache;
1404 int i;
1405
1406 /* Sync reg_cache with the hardware */
1407 for (i = 1; i < ARRAY_SIZE(wm8753_reg); i++) {
1408 if (i == WM8753_RESET)
1409 continue;
1410
1411 /* No point in writing hardware default values back */
1412 if (reg_cache[i] == wm8753_reg[i])
1413 continue;
1414
1415 snd_soc_write(codec, i, reg_cache[i]);
1416 }
1417
1418 wm8753_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
1419
1420 /* charge wm8753 caps */
1421 if (codec->dapm.suspend_bias_level == SND_SOC_BIAS_ON) {
1422 wm8753_set_bias_level(codec, SND_SOC_BIAS_PREPARE);
1423 codec->dapm.bias_level = SND_SOC_BIAS_ON;
1424 schedule_delayed_work(&codec->dapm.delayed_work,
1425 msecs_to_jiffies(caps_charge));
1426 }
1427
1428 return 0;
1429 }
1430
1431 static int wm8753_probe(struct snd_soc_codec *codec)
1432 {
1433 struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);
1434 int ret;
1435
1436 INIT_DELAYED_WORK(&codec->dapm.delayed_work, wm8753_work);
1437
1438 ret = snd_soc_codec_set_cache_io(codec, 7, 9, wm8753->control_type);
1439 if (ret < 0) {
1440 dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret);
1441 return ret;
1442 }
1443
1444 ret = wm8753_reset(codec);
1445 if (ret < 0) {
1446 dev_err(codec->dev, "Failed to issue reset: %d\n", ret);
1447 return ret;
1448 }
1449
1450 wm8753_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
1451 wm8753->dai_func = 0;
1452
1453 /* charge output caps */
1454 wm8753_set_bias_level(codec, SND_SOC_BIAS_PREPARE);
1455 schedule_delayed_work(&codec->dapm.delayed_work,
1456 msecs_to_jiffies(caps_charge));
1457
1458 /* set the update bits */
1459 snd_soc_update_bits(codec, WM8753_LDAC, 0x0100, 0x0100);
1460 snd_soc_update_bits(codec, WM8753_RDAC, 0x0100, 0x0100);
1461 snd_soc_update_bits(codec, WM8753_LADC, 0x0100, 0x0100);
1462 snd_soc_update_bits(codec, WM8753_RADC, 0x0100, 0x0100);
1463 snd_soc_update_bits(codec, WM8753_LOUT1V, 0x0100, 0x0100);
1464 snd_soc_update_bits(codec, WM8753_ROUT1V, 0x0100, 0x0100);
1465 snd_soc_update_bits(codec, WM8753_LOUT2V, 0x0100, 0x0100);
1466 snd_soc_update_bits(codec, WM8753_ROUT2V, 0x0100, 0x0100);
1467 snd_soc_update_bits(codec, WM8753_LINVOL, 0x0100, 0x0100);
1468 snd_soc_update_bits(codec, WM8753_RINVOL, 0x0100, 0x0100);
1469
1470 snd_soc_add_controls(codec, wm8753_snd_controls,
1471 ARRAY_SIZE(wm8753_snd_controls));
1472 wm8753_add_widgets(codec);
1473
1474 return 0;
1475 }
1476
1477 /* power down chip */
1478 static int wm8753_remove(struct snd_soc_codec *codec)
1479 {
1480 flush_delayed_work_sync(&codec->dapm.delayed_work);
1481 wm8753_set_bias_level(codec, SND_SOC_BIAS_OFF);
1482
1483 return 0;
1484 }
1485
1486 static struct snd_soc_codec_driver soc_codec_dev_wm8753 = {
1487 .probe = wm8753_probe,
1488 .remove = wm8753_remove,
1489 .suspend = wm8753_suspend,
1490 .resume = wm8753_resume,
1491 .set_bias_level = wm8753_set_bias_level,
1492 .reg_cache_size = ARRAY_SIZE(wm8753_reg),
1493 .reg_word_size = sizeof(u16),
1494 .reg_cache_default = wm8753_reg,
1495 };
1496
1497 static const struct of_device_id wm8753_of_match[] = {
1498 { .compatible = "wlf,wm8753", },
1499 { }
1500 };
1501 MODULE_DEVICE_TABLE(of, wm8753_of_match);
1502
1503 #if defined(CONFIG_SPI_MASTER)
1504 static int __devinit wm8753_spi_probe(struct spi_device *spi)
1505 {
1506 struct wm8753_priv *wm8753;
1507 int ret;
1508
1509 wm8753 = kzalloc(sizeof(struct wm8753_priv), GFP_KERNEL);
1510 if (wm8753 == NULL)
1511 return -ENOMEM;
1512
1513 wm8753->control_type = SND_SOC_SPI;
1514 spi_set_drvdata(spi, wm8753);
1515
1516 ret = snd_soc_register_codec(&spi->dev,
1517 &soc_codec_dev_wm8753, wm8753_dai, ARRAY_SIZE(wm8753_dai));
1518 if (ret < 0)
1519 kfree(wm8753);
1520 return ret;
1521 }
1522
1523 static int __devexit wm8753_spi_remove(struct spi_device *spi)
1524 {
1525 snd_soc_unregister_codec(&spi->dev);
1526 kfree(spi_get_drvdata(spi));
1527 return 0;
1528 }
1529
1530 static struct spi_driver wm8753_spi_driver = {
1531 .driver = {
1532 .name = "wm8753",
1533 .owner = THIS_MODULE,
1534 .of_match_table = wm8753_of_match,
1535 },
1536 .probe = wm8753_spi_probe,
1537 .remove = __devexit_p(wm8753_spi_remove),
1538 };
1539 #endif /* CONFIG_SPI_MASTER */
1540
1541 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
1542 static __devinit int wm8753_i2c_probe(struct i2c_client *i2c,
1543 const struct i2c_device_id *id)
1544 {
1545 struct wm8753_priv *wm8753;
1546 int ret;
1547
1548 wm8753 = kzalloc(sizeof(struct wm8753_priv), GFP_KERNEL);
1549 if (wm8753 == NULL)
1550 return -ENOMEM;
1551
1552 i2c_set_clientdata(i2c, wm8753);
1553 wm8753->control_type = SND_SOC_I2C;
1554
1555 ret = snd_soc_register_codec(&i2c->dev,
1556 &soc_codec_dev_wm8753, wm8753_dai, ARRAY_SIZE(wm8753_dai));
1557 if (ret < 0)
1558 kfree(wm8753);
1559 return ret;
1560 }
1561
1562 static __devexit int wm8753_i2c_remove(struct i2c_client *client)
1563 {
1564 snd_soc_unregister_codec(&client->dev);
1565 kfree(i2c_get_clientdata(client));
1566 return 0;
1567 }
1568
1569 static const struct i2c_device_id wm8753_i2c_id[] = {
1570 { "wm8753", 0 },
1571 { }
1572 };
1573 MODULE_DEVICE_TABLE(i2c, wm8753_i2c_id);
1574
1575 static struct i2c_driver wm8753_i2c_driver = {
1576 .driver = {
1577 .name = "wm8753",
1578 .owner = THIS_MODULE,
1579 .of_match_table = wm8753_of_match,
1580 },
1581 .probe = wm8753_i2c_probe,
1582 .remove = __devexit_p(wm8753_i2c_remove),
1583 .id_table = wm8753_i2c_id,
1584 };
1585 #endif
1586
1587 static int __init wm8753_modinit(void)
1588 {
1589 int ret = 0;
1590 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
1591 ret = i2c_add_driver(&wm8753_i2c_driver);
1592 if (ret != 0) {
1593 printk(KERN_ERR "Failed to register wm8753 I2C driver: %d\n",
1594 ret);
1595 }
1596 #endif
1597 #if defined(CONFIG_SPI_MASTER)
1598 ret = spi_register_driver(&wm8753_spi_driver);
1599 if (ret != 0) {
1600 printk(KERN_ERR "Failed to register wm8753 SPI driver: %d\n",
1601 ret);
1602 }
1603 #endif
1604 return ret;
1605 }
1606 module_init(wm8753_modinit);
1607
1608 static void __exit wm8753_exit(void)
1609 {
1610 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
1611 i2c_del_driver(&wm8753_i2c_driver);
1612 #endif
1613 #if defined(CONFIG_SPI_MASTER)
1614 spi_unregister_driver(&wm8753_spi_driver);
1615 #endif
1616 }
1617 module_exit(wm8753_exit);
1618
1619 MODULE_DESCRIPTION("ASoC WM8753 driver");
1620 MODULE_AUTHOR("Liam Girdwood");
1621 MODULE_LICENSE("GPL");
Linux kernel - Deliverables
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