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Merge branch 'for-3.2' into for-3.3
[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 wm8753_dapm_routes[] = {
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 /* PLL divisors */
644 struct _pll_div {
645 u32 div2:1;
646 u32 n:4;
647 u32 k:24;
648 };
649
650 /* The size in bits of the pll divide multiplied by 10
651 * to allow rounding later */
652 #define FIXED_PLL_SIZE ((1 << 22) * 10)
653
654 static void pll_factors(struct _pll_div *pll_div, unsigned int target,
655 unsigned int source)
656 {
657 u64 Kpart;
658 unsigned int K, Ndiv, Nmod;
659
660 Ndiv = target / source;
661 if (Ndiv < 6) {
662 source >>= 1;
663 pll_div->div2 = 1;
664 Ndiv = target / source;
665 } else
666 pll_div->div2 = 0;
667
668 if ((Ndiv < 6) || (Ndiv > 12))
669 printk(KERN_WARNING
670 "wm8753: unsupported N = %u\n", Ndiv);
671
672 pll_div->n = Ndiv;
673 Nmod = target % source;
674 Kpart = FIXED_PLL_SIZE * (long long)Nmod;
675
676 do_div(Kpart, source);
677
678 K = Kpart & 0xFFFFFFFF;
679
680 /* Check if we need to round */
681 if ((K % 10) >= 5)
682 K += 5;
683
684 /* Move down to proper range now rounding is done */
685 K /= 10;
686
687 pll_div->k = K;
688 }
689
690 static int wm8753_set_dai_pll(struct snd_soc_dai *codec_dai, int pll_id,
691 int source, unsigned int freq_in, unsigned int freq_out)
692 {
693 u16 reg, enable;
694 int offset;
695 struct snd_soc_codec *codec = codec_dai->codec;
696
697 if (pll_id < WM8753_PLL1 || pll_id > WM8753_PLL2)
698 return -ENODEV;
699
700 if (pll_id == WM8753_PLL1) {
701 offset = 0;
702 enable = 0x10;
703 reg = snd_soc_read(codec, WM8753_CLOCK) & 0xffef;
704 } else {
705 offset = 4;
706 enable = 0x8;
707 reg = snd_soc_read(codec, WM8753_CLOCK) & 0xfff7;
708 }
709
710 if (!freq_in || !freq_out) {
711 /* disable PLL */
712 snd_soc_write(codec, WM8753_PLL1CTL1 + offset, 0x0026);
713 snd_soc_write(codec, WM8753_CLOCK, reg);
714 return 0;
715 } else {
716 u16 value = 0;
717 struct _pll_div pll_div;
718
719 pll_factors(&pll_div, freq_out * 8, freq_in);
720
721 /* set up N and K PLL divisor ratios */
722 /* bits 8:5 = PLL_N, bits 3:0 = PLL_K[21:18] */
723 value = (pll_div.n << 5) + ((pll_div.k & 0x3c0000) >> 18);
724 snd_soc_write(codec, WM8753_PLL1CTL2 + offset, value);
725
726 /* bits 8:0 = PLL_K[17:9] */
727 value = (pll_div.k & 0x03fe00) >> 9;
728 snd_soc_write(codec, WM8753_PLL1CTL3 + offset, value);
729
730 /* bits 8:0 = PLL_K[8:0] */
731 value = pll_div.k & 0x0001ff;
732 snd_soc_write(codec, WM8753_PLL1CTL4 + offset, value);
733
734 /* set PLL as input and enable */
735 snd_soc_write(codec, WM8753_PLL1CTL1 + offset, 0x0027 |
736 (pll_div.div2 << 3));
737 snd_soc_write(codec, WM8753_CLOCK, reg | enable);
738 }
739 return 0;
740 }
741
742 struct _coeff_div {
743 u32 mclk;
744 u32 rate;
745 u8 sr:5;
746 u8 usb:1;
747 };
748
749 /* codec hifi mclk (after PLL) clock divider coefficients */
750 static const struct _coeff_div coeff_div[] = {
751 /* 8k */
752 {12288000, 8000, 0x6, 0x0},
753 {11289600, 8000, 0x16, 0x0},
754 {18432000, 8000, 0x7, 0x0},
755 {16934400, 8000, 0x17, 0x0},
756 {12000000, 8000, 0x6, 0x1},
757
758 /* 11.025k */
759 {11289600, 11025, 0x18, 0x0},
760 {16934400, 11025, 0x19, 0x0},
761 {12000000, 11025, 0x19, 0x1},
762
763 /* 16k */
764 {12288000, 16000, 0xa, 0x0},
765 {18432000, 16000, 0xb, 0x0},
766 {12000000, 16000, 0xa, 0x1},
767
768 /* 22.05k */
769 {11289600, 22050, 0x1a, 0x0},
770 {16934400, 22050, 0x1b, 0x0},
771 {12000000, 22050, 0x1b, 0x1},
772
773 /* 32k */
774 {12288000, 32000, 0xc, 0x0},
775 {18432000, 32000, 0xd, 0x0},
776 {12000000, 32000, 0xa, 0x1},
777
778 /* 44.1k */
779 {11289600, 44100, 0x10, 0x0},
780 {16934400, 44100, 0x11, 0x0},
781 {12000000, 44100, 0x11, 0x1},
782
783 /* 48k */
784 {12288000, 48000, 0x0, 0x0},
785 {18432000, 48000, 0x1, 0x0},
786 {12000000, 48000, 0x0, 0x1},
787
788 /* 88.2k */
789 {11289600, 88200, 0x1e, 0x0},
790 {16934400, 88200, 0x1f, 0x0},
791 {12000000, 88200, 0x1f, 0x1},
792
793 /* 96k */
794 {12288000, 96000, 0xe, 0x0},
795 {18432000, 96000, 0xf, 0x0},
796 {12000000, 96000, 0xe, 0x1},
797 };
798
799 static int get_coeff(int mclk, int rate)
800 {
801 int i;
802
803 for (i = 0; i < ARRAY_SIZE(coeff_div); i++) {
804 if (coeff_div[i].rate == rate && coeff_div[i].mclk == mclk)
805 return i;
806 }
807 return -EINVAL;
808 }
809
810 /*
811 * Clock after PLL and dividers
812 */
813 static int wm8753_set_dai_sysclk(struct snd_soc_dai *codec_dai,
814 int clk_id, unsigned int freq, int dir)
815 {
816 struct snd_soc_codec *codec = codec_dai->codec;
817 struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);
818
819 switch (freq) {
820 case 11289600:
821 case 12000000:
822 case 12288000:
823 case 16934400:
824 case 18432000:
825 if (clk_id == WM8753_MCLK) {
826 wm8753->sysclk = freq;
827 return 0;
828 } else if (clk_id == WM8753_PCMCLK) {
829 wm8753->pcmclk = freq;
830 return 0;
831 }
832 break;
833 }
834 return -EINVAL;
835 }
836
837 /*
838 * Set's ADC and Voice DAC format.
839 */
840 static int wm8753_vdac_adc_set_dai_fmt(struct snd_soc_codec *codec,
841 unsigned int fmt)
842 {
843 u16 voice = snd_soc_read(codec, WM8753_PCM) & 0x01ec;
844
845 /* interface format */
846 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
847 case SND_SOC_DAIFMT_I2S:
848 voice |= 0x0002;
849 break;
850 case SND_SOC_DAIFMT_RIGHT_J:
851 break;
852 case SND_SOC_DAIFMT_LEFT_J:
853 voice |= 0x0001;
854 break;
855 case SND_SOC_DAIFMT_DSP_A:
856 voice |= 0x0003;
857 break;
858 case SND_SOC_DAIFMT_DSP_B:
859 voice |= 0x0013;
860 break;
861 default:
862 return -EINVAL;
863 }
864
865 snd_soc_write(codec, WM8753_PCM, voice);
866 return 0;
867 }
868
869 /*
870 * Set PCM DAI bit size and sample rate.
871 */
872 static int wm8753_pcm_hw_params(struct snd_pcm_substream *substream,
873 struct snd_pcm_hw_params *params,
874 struct snd_soc_dai *dai)
875 {
876 struct snd_soc_pcm_runtime *rtd = substream->private_data;
877 struct snd_soc_codec *codec = rtd->codec;
878 struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);
879 u16 voice = snd_soc_read(codec, WM8753_PCM) & 0x01f3;
880 u16 srate = snd_soc_read(codec, WM8753_SRATE1) & 0x017f;
881
882 /* bit size */
883 switch (params_format(params)) {
884 case SNDRV_PCM_FORMAT_S16_LE:
885 break;
886 case SNDRV_PCM_FORMAT_S20_3LE:
887 voice |= 0x0004;
888 break;
889 case SNDRV_PCM_FORMAT_S24_LE:
890 voice |= 0x0008;
891 break;
892 case SNDRV_PCM_FORMAT_S32_LE:
893 voice |= 0x000c;
894 break;
895 }
896
897 /* sample rate */
898 if (params_rate(params) * 384 == wm8753->pcmclk)
899 srate |= 0x80;
900 snd_soc_write(codec, WM8753_SRATE1, srate);
901
902 snd_soc_write(codec, WM8753_PCM, voice);
903 return 0;
904 }
905
906 /*
907 * Set's PCM dai fmt and BCLK.
908 */
909 static int wm8753_pcm_set_dai_fmt(struct snd_soc_codec *codec,
910 unsigned int fmt)
911 {
912 u16 voice, ioctl;
913
914 voice = snd_soc_read(codec, WM8753_PCM) & 0x011f;
915 ioctl = snd_soc_read(codec, WM8753_IOCTL) & 0x015d;
916
917 /* set master/slave audio interface */
918 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
919 case SND_SOC_DAIFMT_CBS_CFS:
920 break;
921 case SND_SOC_DAIFMT_CBM_CFM:
922 ioctl |= 0x2;
923 case SND_SOC_DAIFMT_CBM_CFS:
924 voice |= 0x0040;
925 break;
926 default:
927 return -EINVAL;
928 }
929
930 /* clock inversion */
931 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
932 case SND_SOC_DAIFMT_DSP_A:
933 case SND_SOC_DAIFMT_DSP_B:
934 /* frame inversion not valid for DSP modes */
935 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
936 case SND_SOC_DAIFMT_NB_NF:
937 break;
938 case SND_SOC_DAIFMT_IB_NF:
939 voice |= 0x0080;
940 break;
941 default:
942 return -EINVAL;
943 }
944 break;
945 case SND_SOC_DAIFMT_I2S:
946 case SND_SOC_DAIFMT_RIGHT_J:
947 case SND_SOC_DAIFMT_LEFT_J:
948 voice &= ~0x0010;
949 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
950 case SND_SOC_DAIFMT_NB_NF:
951 break;
952 case SND_SOC_DAIFMT_IB_IF:
953 voice |= 0x0090;
954 break;
955 case SND_SOC_DAIFMT_IB_NF:
956 voice |= 0x0080;
957 break;
958 case SND_SOC_DAIFMT_NB_IF:
959 voice |= 0x0010;
960 break;
961 default:
962 return -EINVAL;
963 }
964 break;
965 default:
966 return -EINVAL;
967 }
968
969 snd_soc_write(codec, WM8753_PCM, voice);
970 snd_soc_write(codec, WM8753_IOCTL, ioctl);
971 return 0;
972 }
973
974 static int wm8753_set_dai_clkdiv(struct snd_soc_dai *codec_dai,
975 int div_id, int div)
976 {
977 struct snd_soc_codec *codec = codec_dai->codec;
978 u16 reg;
979
980 switch (div_id) {
981 case WM8753_PCMDIV:
982 reg = snd_soc_read(codec, WM8753_CLOCK) & 0x003f;
983 snd_soc_write(codec, WM8753_CLOCK, reg | div);
984 break;
985 case WM8753_BCLKDIV:
986 reg = snd_soc_read(codec, WM8753_SRATE2) & 0x01c7;
987 snd_soc_write(codec, WM8753_SRATE2, reg | div);
988 break;
989 case WM8753_VXCLKDIV:
990 reg = snd_soc_read(codec, WM8753_SRATE2) & 0x003f;
991 snd_soc_write(codec, WM8753_SRATE2, reg | div);
992 break;
993 default:
994 return -EINVAL;
995 }
996 return 0;
997 }
998
999 /*
1000 * Set's HiFi DAC format.
1001 */
1002 static int wm8753_hdac_set_dai_fmt(struct snd_soc_codec *codec,
1003 unsigned int fmt)
1004 {
1005 u16 hifi = snd_soc_read(codec, WM8753_HIFI) & 0x01e0;
1006
1007 /* interface format */
1008 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
1009 case SND_SOC_DAIFMT_I2S:
1010 hifi |= 0x0002;
1011 break;
1012 case SND_SOC_DAIFMT_RIGHT_J:
1013 break;
1014 case SND_SOC_DAIFMT_LEFT_J:
1015 hifi |= 0x0001;
1016 break;
1017 case SND_SOC_DAIFMT_DSP_A:
1018 hifi |= 0x0003;
1019 break;
1020 case SND_SOC_DAIFMT_DSP_B:
1021 hifi |= 0x0013;
1022 break;
1023 default:
1024 return -EINVAL;
1025 }
1026
1027 snd_soc_write(codec, WM8753_HIFI, hifi);
1028 return 0;
1029 }
1030
1031 /*
1032 * Set's I2S DAI format.
1033 */
1034 static int wm8753_i2s_set_dai_fmt(struct snd_soc_codec *codec,
1035 unsigned int fmt)
1036 {
1037 u16 ioctl, hifi;
1038
1039 hifi = snd_soc_read(codec, WM8753_HIFI) & 0x011f;
1040 ioctl = snd_soc_read(codec, WM8753_IOCTL) & 0x00ae;
1041
1042 /* set master/slave audio interface */
1043 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
1044 case SND_SOC_DAIFMT_CBS_CFS:
1045 break;
1046 case SND_SOC_DAIFMT_CBM_CFM:
1047 ioctl |= 0x1;
1048 case SND_SOC_DAIFMT_CBM_CFS:
1049 hifi |= 0x0040;
1050 break;
1051 default:
1052 return -EINVAL;
1053 }
1054
1055 /* clock inversion */
1056 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
1057 case SND_SOC_DAIFMT_DSP_A:
1058 case SND_SOC_DAIFMT_DSP_B:
1059 /* frame inversion not valid for DSP modes */
1060 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
1061 case SND_SOC_DAIFMT_NB_NF:
1062 break;
1063 case SND_SOC_DAIFMT_IB_NF:
1064 hifi |= 0x0080;
1065 break;
1066 default:
1067 return -EINVAL;
1068 }
1069 break;
1070 case SND_SOC_DAIFMT_I2S:
1071 case SND_SOC_DAIFMT_RIGHT_J:
1072 case SND_SOC_DAIFMT_LEFT_J:
1073 hifi &= ~0x0010;
1074 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
1075 case SND_SOC_DAIFMT_NB_NF:
1076 break;
1077 case SND_SOC_DAIFMT_IB_IF:
1078 hifi |= 0x0090;
1079 break;
1080 case SND_SOC_DAIFMT_IB_NF:
1081 hifi |= 0x0080;
1082 break;
1083 case SND_SOC_DAIFMT_NB_IF:
1084 hifi |= 0x0010;
1085 break;
1086 default:
1087 return -EINVAL;
1088 }
1089 break;
1090 default:
1091 return -EINVAL;
1092 }
1093
1094 snd_soc_write(codec, WM8753_HIFI, hifi);
1095 snd_soc_write(codec, WM8753_IOCTL, ioctl);
1096 return 0;
1097 }
1098
1099 /*
1100 * Set PCM DAI bit size and sample rate.
1101 */
1102 static int wm8753_i2s_hw_params(struct snd_pcm_substream *substream,
1103 struct snd_pcm_hw_params *params,
1104 struct snd_soc_dai *dai)
1105 {
1106 struct snd_soc_pcm_runtime *rtd = substream->private_data;
1107 struct snd_soc_codec *codec = rtd->codec;
1108 struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);
1109 u16 srate = snd_soc_read(codec, WM8753_SRATE1) & 0x01c0;
1110 u16 hifi = snd_soc_read(codec, WM8753_HIFI) & 0x01f3;
1111 int coeff;
1112
1113 /* is digital filter coefficient valid ? */
1114 coeff = get_coeff(wm8753->sysclk, params_rate(params));
1115 if (coeff < 0) {
1116 printk(KERN_ERR "wm8753 invalid MCLK or rate\n");
1117 return coeff;
1118 }
1119 snd_soc_write(codec, WM8753_SRATE1, srate | (coeff_div[coeff].sr << 1) |
1120 coeff_div[coeff].usb);
1121
1122 /* bit size */
1123 switch (params_format(params)) {
1124 case SNDRV_PCM_FORMAT_S16_LE:
1125 break;
1126 case SNDRV_PCM_FORMAT_S20_3LE:
1127 hifi |= 0x0004;
1128 break;
1129 case SNDRV_PCM_FORMAT_S24_LE:
1130 hifi |= 0x0008;
1131 break;
1132 case SNDRV_PCM_FORMAT_S32_LE:
1133 hifi |= 0x000c;
1134 break;
1135 }
1136
1137 snd_soc_write(codec, WM8753_HIFI, hifi);
1138 return 0;
1139 }
1140
1141 static int wm8753_mode1v_set_dai_fmt(struct snd_soc_codec *codec,
1142 unsigned int fmt)
1143 {
1144 u16 clock;
1145
1146 /* set clk source as pcmclk */
1147 clock = snd_soc_read(codec, WM8753_CLOCK) & 0xfffb;
1148 snd_soc_write(codec, WM8753_CLOCK, clock);
1149
1150 return wm8753_vdac_adc_set_dai_fmt(codec, fmt);
1151 }
1152
1153 static int wm8753_mode1h_set_dai_fmt(struct snd_soc_codec *codec,
1154 unsigned int fmt)
1155 {
1156 return wm8753_hdac_set_dai_fmt(codec, fmt);
1157 }
1158
1159 static int wm8753_mode2_set_dai_fmt(struct snd_soc_codec *codec,
1160 unsigned int fmt)
1161 {
1162 u16 clock;
1163
1164 /* set clk source as pcmclk */
1165 clock = snd_soc_read(codec, WM8753_CLOCK) & 0xfffb;
1166 snd_soc_write(codec, WM8753_CLOCK, clock);
1167
1168 return wm8753_vdac_adc_set_dai_fmt(codec, fmt);
1169 }
1170
1171 static int wm8753_mode3_4_set_dai_fmt(struct snd_soc_codec *codec,
1172 unsigned int fmt)
1173 {
1174 u16 clock;
1175
1176 /* set clk source as mclk */
1177 clock = snd_soc_read(codec, WM8753_CLOCK) & 0xfffb;
1178 snd_soc_write(codec, WM8753_CLOCK, clock | 0x4);
1179
1180 if (wm8753_hdac_set_dai_fmt(codec, fmt) < 0)
1181 return -EINVAL;
1182 return wm8753_vdac_adc_set_dai_fmt(codec, fmt);
1183 }
1184
1185 static int wm8753_hifi_write_dai_fmt(struct snd_soc_codec *codec,
1186 unsigned int fmt)
1187 {
1188 struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);
1189 int ret = 0;
1190
1191 switch (wm8753->dai_func) {
1192 case 0:
1193 ret = wm8753_mode1h_set_dai_fmt(codec, fmt);
1194 break;
1195 case 1:
1196 ret = wm8753_mode2_set_dai_fmt(codec, fmt);
1197 break;
1198 case 2:
1199 case 3:
1200 ret = wm8753_mode3_4_set_dai_fmt(codec, fmt);
1201 break;
1202 default:
1203 break;
1204 }
1205 if (ret)
1206 return ret;
1207
1208 return wm8753_i2s_set_dai_fmt(codec, fmt);
1209 }
1210
1211 static int wm8753_hifi_set_dai_fmt(struct snd_soc_dai *codec_dai,
1212 unsigned int fmt)
1213 {
1214 struct snd_soc_codec *codec = codec_dai->codec;
1215 struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);
1216
1217 wm8753->hifi_fmt = fmt;
1218
1219 return wm8753_hifi_write_dai_fmt(codec, fmt);
1220 };
1221
1222 static int wm8753_voice_write_dai_fmt(struct snd_soc_codec *codec,
1223 unsigned int fmt)
1224 {
1225 struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);
1226 int ret = 0;
1227
1228 if (wm8753->dai_func != 0)
1229 return 0;
1230
1231 ret = wm8753_mode1v_set_dai_fmt(codec, fmt);
1232 if (ret)
1233 return ret;
1234 ret = wm8753_pcm_set_dai_fmt(codec, fmt);
1235 if (ret)
1236 return ret;
1237
1238 return 0;
1239 };
1240
1241 static int wm8753_voice_set_dai_fmt(struct snd_soc_dai *codec_dai,
1242 unsigned int fmt)
1243 {
1244 struct snd_soc_codec *codec = codec_dai->codec;
1245 struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);
1246
1247 wm8753->voice_fmt = fmt;
1248
1249 return wm8753_voice_write_dai_fmt(codec, fmt);
1250 };
1251
1252 static int wm8753_mute(struct snd_soc_dai *dai, int mute)
1253 {
1254 struct snd_soc_codec *codec = dai->codec;
1255 u16 mute_reg = snd_soc_read(codec, WM8753_DAC) & 0xfff7;
1256 struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);
1257
1258 /* the digital mute covers the HiFi and Voice DAC's on the WM8753.
1259 * make sure we check if they are not both active when we mute */
1260 if (mute && wm8753->dai_func == 1) {
1261 if (!codec->active)
1262 snd_soc_write(codec, WM8753_DAC, mute_reg | 0x8);
1263 } else {
1264 if (mute)
1265 snd_soc_write(codec, WM8753_DAC, mute_reg | 0x8);
1266 else
1267 snd_soc_write(codec, WM8753_DAC, mute_reg);
1268 }
1269
1270 return 0;
1271 }
1272
1273 static int wm8753_set_bias_level(struct snd_soc_codec *codec,
1274 enum snd_soc_bias_level level)
1275 {
1276 u16 pwr_reg = snd_soc_read(codec, WM8753_PWR1) & 0xfe3e;
1277
1278 switch (level) {
1279 case SND_SOC_BIAS_ON:
1280 /* set vmid to 50k and unmute dac */
1281 snd_soc_write(codec, WM8753_PWR1, pwr_reg | 0x00c0);
1282 break;
1283 case SND_SOC_BIAS_PREPARE:
1284 /* set vmid to 5k for quick power up */
1285 snd_soc_write(codec, WM8753_PWR1, pwr_reg | 0x01c1);
1286 break;
1287 case SND_SOC_BIAS_STANDBY:
1288 /* mute dac and set vmid to 500k, enable VREF */
1289 snd_soc_write(codec, WM8753_PWR1, pwr_reg | 0x0141);
1290 break;
1291 case SND_SOC_BIAS_OFF:
1292 snd_soc_write(codec, WM8753_PWR1, 0x0001);
1293 break;
1294 }
1295 codec->dapm.bias_level = level;
1296 return 0;
1297 }
1298
1299 #define WM8753_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\
1300 SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 |\
1301 SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 |\
1302 SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000)
1303
1304 #define WM8753_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
1305 SNDRV_PCM_FMTBIT_S24_LE)
1306
1307 /*
1308 * The WM8753 supports up to 4 different and mutually exclusive DAI
1309 * configurations. This gives 2 PCM's available for use, hifi and voice.
1310 * NOTE: The Voice PCM cannot play or capture audio to the CPU as it's DAI
1311 * is connected between the wm8753 and a BT codec or GSM modem.
1312 *
1313 * 1. Voice over PCM DAI - HIFI DAC over HIFI DAI
1314 * 2. Voice over HIFI DAI - HIFI disabled
1315 * 3. Voice disabled - HIFI over HIFI
1316 * 4. Voice disabled - HIFI over HIFI, uses voice DAI LRC for capture
1317 */
1318 static const struct snd_soc_dai_ops wm8753_dai_ops_hifi_mode = {
1319 .hw_params = wm8753_i2s_hw_params,
1320 .digital_mute = wm8753_mute,
1321 .set_fmt = wm8753_hifi_set_dai_fmt,
1322 .set_clkdiv = wm8753_set_dai_clkdiv,
1323 .set_pll = wm8753_set_dai_pll,
1324 .set_sysclk = wm8753_set_dai_sysclk,
1325 };
1326
1327 static const struct snd_soc_dai_ops wm8753_dai_ops_voice_mode = {
1328 .hw_params = wm8753_pcm_hw_params,
1329 .digital_mute = wm8753_mute,
1330 .set_fmt = wm8753_voice_set_dai_fmt,
1331 .set_clkdiv = wm8753_set_dai_clkdiv,
1332 .set_pll = wm8753_set_dai_pll,
1333 .set_sysclk = wm8753_set_dai_sysclk,
1334 };
1335
1336 static struct snd_soc_dai_driver wm8753_dai[] = {
1337 /* DAI HiFi mode 1 */
1338 { .name = "wm8753-hifi",
1339 .playback = {
1340 .stream_name = "HiFi Playback",
1341 .channels_min = 1,
1342 .channels_max = 2,
1343 .rates = WM8753_RATES,
1344 .formats = WM8753_FORMATS
1345 },
1346 .capture = { /* dummy for fast DAI switching */
1347 .stream_name = "Capture",
1348 .channels_min = 1,
1349 .channels_max = 2,
1350 .rates = WM8753_RATES,
1351 .formats = WM8753_FORMATS
1352 },
1353 .ops = &wm8753_dai_ops_hifi_mode,
1354 },
1355 /* DAI Voice mode 1 */
1356 { .name = "wm8753-voice",
1357 .playback = {
1358 .stream_name = "Voice Playback",
1359 .channels_min = 1,
1360 .channels_max = 1,
1361 .rates = WM8753_RATES,
1362 .formats = WM8753_FORMATS,
1363 },
1364 .capture = {
1365 .stream_name = "Capture",
1366 .channels_min = 1,
1367 .channels_max = 2,
1368 .rates = WM8753_RATES,
1369 .formats = WM8753_FORMATS,
1370 },
1371 .ops = &wm8753_dai_ops_voice_mode,
1372 },
1373 };
1374
1375 static void wm8753_work(struct work_struct *work)
1376 {
1377 struct snd_soc_dapm_context *dapm =
1378 container_of(work, struct snd_soc_dapm_context,
1379 delayed_work.work);
1380 struct snd_soc_codec *codec = dapm->codec;
1381 wm8753_set_bias_level(codec, dapm->bias_level);
1382 }
1383
1384 static int wm8753_suspend(struct snd_soc_codec *codec, pm_message_t state)
1385 {
1386 wm8753_set_bias_level(codec, SND_SOC_BIAS_OFF);
1387 return 0;
1388 }
1389
1390 static int wm8753_resume(struct snd_soc_codec *codec)
1391 {
1392 u16 *reg_cache = codec->reg_cache;
1393 int i;
1394
1395 /* Sync reg_cache with the hardware */
1396 for (i = 1; i < ARRAY_SIZE(wm8753_reg); i++) {
1397 if (i == WM8753_RESET)
1398 continue;
1399
1400 /* No point in writing hardware default values back */
1401 if (reg_cache[i] == wm8753_reg[i])
1402 continue;
1403
1404 snd_soc_write(codec, i, reg_cache[i]);
1405 }
1406
1407 wm8753_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
1408
1409 /* charge wm8753 caps */
1410 if (codec->dapm.suspend_bias_level == SND_SOC_BIAS_ON) {
1411 wm8753_set_bias_level(codec, SND_SOC_BIAS_PREPARE);
1412 codec->dapm.bias_level = SND_SOC_BIAS_ON;
1413 schedule_delayed_work(&codec->dapm.delayed_work,
1414 msecs_to_jiffies(caps_charge));
1415 }
1416
1417 return 0;
1418 }
1419
1420 static int wm8753_probe(struct snd_soc_codec *codec)
1421 {
1422 struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);
1423 int ret;
1424
1425 INIT_DELAYED_WORK(&codec->dapm.delayed_work, wm8753_work);
1426
1427 ret = snd_soc_codec_set_cache_io(codec, 7, 9, wm8753->control_type);
1428 if (ret < 0) {
1429 dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret);
1430 return ret;
1431 }
1432
1433 ret = wm8753_reset(codec);
1434 if (ret < 0) {
1435 dev_err(codec->dev, "Failed to issue reset: %d\n", ret);
1436 return ret;
1437 }
1438
1439 wm8753_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
1440 wm8753->dai_func = 0;
1441
1442 /* charge output caps */
1443 wm8753_set_bias_level(codec, SND_SOC_BIAS_PREPARE);
1444 schedule_delayed_work(&codec->dapm.delayed_work,
1445 msecs_to_jiffies(caps_charge));
1446
1447 /* set the update bits */
1448 snd_soc_update_bits(codec, WM8753_LDAC, 0x0100, 0x0100);
1449 snd_soc_update_bits(codec, WM8753_RDAC, 0x0100, 0x0100);
1450 snd_soc_update_bits(codec, WM8753_LADC, 0x0100, 0x0100);
1451 snd_soc_update_bits(codec, WM8753_RADC, 0x0100, 0x0100);
1452 snd_soc_update_bits(codec, WM8753_LOUT1V, 0x0100, 0x0100);
1453 snd_soc_update_bits(codec, WM8753_ROUT1V, 0x0100, 0x0100);
1454 snd_soc_update_bits(codec, WM8753_LOUT2V, 0x0100, 0x0100);
1455 snd_soc_update_bits(codec, WM8753_ROUT2V, 0x0100, 0x0100);
1456 snd_soc_update_bits(codec, WM8753_LINVOL, 0x0100, 0x0100);
1457 snd_soc_update_bits(codec, WM8753_RINVOL, 0x0100, 0x0100);
1458
1459 return 0;
1460 }
1461
1462 /* power down chip */
1463 static int wm8753_remove(struct snd_soc_codec *codec)
1464 {
1465 flush_delayed_work_sync(&codec->dapm.delayed_work);
1466 wm8753_set_bias_level(codec, SND_SOC_BIAS_OFF);
1467
1468 return 0;
1469 }
1470
1471 static struct snd_soc_codec_driver soc_codec_dev_wm8753 = {
1472 .probe = wm8753_probe,
1473 .remove = wm8753_remove,
1474 .suspend = wm8753_suspend,
1475 .resume = wm8753_resume,
1476 .set_bias_level = wm8753_set_bias_level,
1477 .reg_cache_size = ARRAY_SIZE(wm8753_reg),
1478 .reg_word_size = sizeof(u16),
1479 .reg_cache_default = wm8753_reg,
1480
1481 .controls = wm8753_snd_controls,
1482 .num_controls = ARRAY_SIZE(wm8753_snd_controls),
1483 .dapm_widgets = wm8753_dapm_widgets,
1484 .num_dapm_widgets = ARRAY_SIZE(wm8753_dapm_widgets),
1485 .dapm_routes = wm8753_dapm_routes,
1486 .num_dapm_routes = ARRAY_SIZE(wm8753_dapm_routes),
1487 };
1488
1489 static const struct of_device_id wm8753_of_match[] = {
1490 { .compatible = "wlf,wm8753", },
1491 { }
1492 };
1493 MODULE_DEVICE_TABLE(of, wm8753_of_match);
1494
1495 #if defined(CONFIG_SPI_MASTER)
1496 static int __devinit wm8753_spi_probe(struct spi_device *spi)
1497 {
1498 struct wm8753_priv *wm8753;
1499 int ret;
1500
1501 wm8753 = kzalloc(sizeof(struct wm8753_priv), GFP_KERNEL);
1502 if (wm8753 == NULL)
1503 return -ENOMEM;
1504
1505 wm8753->control_type = SND_SOC_SPI;
1506 spi_set_drvdata(spi, wm8753);
1507
1508 ret = snd_soc_register_codec(&spi->dev,
1509 &soc_codec_dev_wm8753, wm8753_dai, ARRAY_SIZE(wm8753_dai));
1510 if (ret < 0)
1511 kfree(wm8753);
1512 return ret;
1513 }
1514
1515 static int __devexit wm8753_spi_remove(struct spi_device *spi)
1516 {
1517 snd_soc_unregister_codec(&spi->dev);
1518 kfree(spi_get_drvdata(spi));
1519 return 0;
1520 }
1521
1522 static struct spi_driver wm8753_spi_driver = {
1523 .driver = {
1524 .name = "wm8753",
1525 .owner = THIS_MODULE,
1526 .of_match_table = wm8753_of_match,
1527 },
1528 .probe = wm8753_spi_probe,
1529 .remove = __devexit_p(wm8753_spi_remove),
1530 };
1531 #endif /* CONFIG_SPI_MASTER */
1532
1533 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
1534 static __devinit int wm8753_i2c_probe(struct i2c_client *i2c,
1535 const struct i2c_device_id *id)
1536 {
1537 struct wm8753_priv *wm8753;
1538 int ret;
1539
1540 wm8753 = kzalloc(sizeof(struct wm8753_priv), GFP_KERNEL);
1541 if (wm8753 == NULL)
1542 return -ENOMEM;
1543
1544 i2c_set_clientdata(i2c, wm8753);
1545 wm8753->control_type = SND_SOC_I2C;
1546
1547 ret = snd_soc_register_codec(&i2c->dev,
1548 &soc_codec_dev_wm8753, wm8753_dai, ARRAY_SIZE(wm8753_dai));
1549 if (ret < 0)
1550 kfree(wm8753);
1551 return ret;
1552 }
1553
1554 static __devexit int wm8753_i2c_remove(struct i2c_client *client)
1555 {
1556 snd_soc_unregister_codec(&client->dev);
1557 kfree(i2c_get_clientdata(client));
1558 return 0;
1559 }
1560
1561 static const struct i2c_device_id wm8753_i2c_id[] = {
1562 { "wm8753", 0 },
1563 { }
1564 };
1565 MODULE_DEVICE_TABLE(i2c, wm8753_i2c_id);
1566
1567 static struct i2c_driver wm8753_i2c_driver = {
1568 .driver = {
1569 .name = "wm8753",
1570 .owner = THIS_MODULE,
1571 .of_match_table = wm8753_of_match,
1572 },
1573 .probe = wm8753_i2c_probe,
1574 .remove = __devexit_p(wm8753_i2c_remove),
1575 .id_table = wm8753_i2c_id,
1576 };
1577 #endif
1578
1579 static int __init wm8753_modinit(void)
1580 {
1581 int ret = 0;
1582 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
1583 ret = i2c_add_driver(&wm8753_i2c_driver);
1584 if (ret != 0) {
1585 printk(KERN_ERR "Failed to register wm8753 I2C driver: %d\n",
1586 ret);
1587 }
1588 #endif
1589 #if defined(CONFIG_SPI_MASTER)
1590 ret = spi_register_driver(&wm8753_spi_driver);
1591 if (ret != 0) {
1592 printk(KERN_ERR "Failed to register wm8753 SPI driver: %d\n",
1593 ret);
1594 }
1595 #endif
1596 return ret;
1597 }
1598 module_init(wm8753_modinit);
1599
1600 static void __exit wm8753_exit(void)
1601 {
1602 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
1603 i2c_del_driver(&wm8753_i2c_driver);
1604 #endif
1605 #if defined(CONFIG_SPI_MASTER)
1606 spi_unregister_driver(&wm8753_spi_driver);
1607 #endif
1608 }
1609 module_exit(wm8753_exit);
1610
1611 MODULE_DESCRIPTION("ASoC WM8753 driver");
1612 MODULE_AUTHOR("Liam Girdwood");
1613 MODULE_LICENSE("GPL");
Linux kernel - Deliverables
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