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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/spi/spi.h>
43 #include <linux/slab.h>
44 #include <sound/core.h>
45 #include <sound/pcm.h>
46 #include <sound/pcm_params.h>
47 #include <sound/soc.h>
48 #include <sound/initval.h>
49 #include <sound/tlv.h>
50 #include <asm/div64.h>
51
52 #include "wm8753.h"
53
54 static int caps_charge = 2000;
55 module_param(caps_charge, int, 0);
56 MODULE_PARM_DESC(caps_charge, "WM8753 cap charge time (msecs)");
57
58 static int wm8753_hifi_write_dai_fmt(struct snd_soc_codec *codec,
59 unsigned int fmt);
60 static int wm8753_voice_write_dai_fmt(struct snd_soc_codec *codec,
61 unsigned int fmt);
62
63 /*
64 * wm8753 register cache
65 * We can't read the WM8753 register space when we
66 * are using 2 wire for device control, so we cache them instead.
67 */
68 static const u16 wm8753_reg[] = {
69 0x0000, 0x0008, 0x0000, 0x000a,
70 0x000a, 0x0033, 0x0000, 0x0007,
71 0x00ff, 0x00ff, 0x000f, 0x000f,
72 0x007b, 0x0000, 0x0032, 0x0000,
73 0x00c3, 0x00c3, 0x00c0, 0x0000,
74 0x0000, 0x0000, 0x0000, 0x0000,
75 0x0000, 0x0000, 0x0000, 0x0000,
76 0x0000, 0x0000, 0x0000, 0x0000,
77 0x0055, 0x0005, 0x0050, 0x0055,
78 0x0050, 0x0055, 0x0050, 0x0055,
79 0x0079, 0x0079, 0x0079, 0x0079,
80 0x0079, 0x0000, 0x0000, 0x0000,
81 0x0000, 0x0097, 0x0097, 0x0000,
82 0x0004, 0x0000, 0x0083, 0x0024,
83 0x01ba, 0x0000, 0x0083, 0x0024,
84 0x01ba, 0x0000, 0x0000, 0x0000
85 };
86
87 /* codec private data */
88 struct wm8753_priv {
89 enum snd_soc_control_type control_type;
90 unsigned int sysclk;
91 unsigned int pcmclk;
92
93 unsigned int voice_fmt;
94 unsigned int hifi_fmt;
95
96 int dai_func;
97 };
98
99 #define wm8753_reset(c) snd_soc_write(c, WM8753_RESET, 0)
100
101 /*
102 * WM8753 Controls
103 */
104 static const char *wm8753_base[] = {"Linear Control", "Adaptive Boost"};
105 static const char *wm8753_base_filter[] =
106 {"130Hz @ 48kHz", "200Hz @ 48kHz", "100Hz @ 16kHz", "400Hz @ 48kHz",
107 "100Hz @ 8kHz", "200Hz @ 8kHz"};
108 static const char *wm8753_treble[] = {"8kHz", "4kHz"};
109 static const char *wm8753_alc_func[] = {"Off", "Right", "Left", "Stereo"};
110 static const char *wm8753_ng_type[] = {"Constant PGA Gain", "Mute ADC Output"};
111 static const char *wm8753_3d_func[] = {"Capture", "Playback"};
112 static const char *wm8753_3d_uc[] = {"2.2kHz", "1.5kHz"};
113 static const char *wm8753_3d_lc[] = {"200Hz", "500Hz"};
114 static const char *wm8753_deemp[] = {"None", "32kHz", "44.1kHz", "48kHz"};
115 static const char *wm8753_mono_mix[] = {"Stereo", "Left", "Right", "Mono"};
116 static const char *wm8753_dac_phase[] = {"Non Inverted", "Inverted"};
117 static const char *wm8753_line_mix[] = {"Line 1 + 2", "Line 1 - 2",
118 "Line 1", "Line 2"};
119 static const char *wm8753_mono_mux[] = {"Line Mix", "Rx Mix"};
120 static const char *wm8753_right_mux[] = {"Line 2", "Rx Mix"};
121 static const char *wm8753_left_mux[] = {"Line 1", "Rx Mix"};
122 static const char *wm8753_rxmsel[] = {"RXP - RXN", "RXP + RXN", "RXP", "RXN"};
123 static const char *wm8753_sidetone_mux[] = {"Left PGA", "Mic 1", "Mic 2",
124 "Right PGA"};
125 static const char *wm8753_mono2_src[] = {"Inverted Mono 1", "Left", "Right",
126 "Left + Right"};
127 static const char *wm8753_out3[] = {"VREF", "ROUT2", "Left + Right"};
128 static const char *wm8753_out4[] = {"VREF", "Capture ST", "LOUT2"};
129 static const char *wm8753_radcsel[] = {"PGA", "Line or RXP-RXN", "Sidetone"};
130 static const char *wm8753_ladcsel[] = {"PGA", "Line or RXP-RXN", "Line"};
131 static const char *wm8753_mono_adc[] = {"Stereo", "Analogue Mix Left",
132 "Analogue Mix Right", "Digital Mono Mix"};
133 static const char *wm8753_adc_hp[] = {"3.4Hz @ 48kHz", "82Hz @ 16k",
134 "82Hz @ 8kHz", "170Hz @ 8kHz"};
135 static const char *wm8753_adc_filter[] = {"HiFi", "Voice"};
136 static const char *wm8753_mic_sel[] = {"Mic 1", "Mic 2", "Mic 3"};
137 static const char *wm8753_dai_mode[] = {"DAI 0", "DAI 1", "DAI 2", "DAI 3"};
138 static const char *wm8753_dat_sel[] = {"Stereo", "Left ADC", "Right ADC",
139 "Channel Swap"};
140 static const char *wm8753_rout2_phase[] = {"Non Inverted", "Inverted"};
141
142 static const struct soc_enum wm8753_enum[] = {
143 SOC_ENUM_SINGLE(WM8753_BASS, 7, 2, wm8753_base),
144 SOC_ENUM_SINGLE(WM8753_BASS, 4, 6, wm8753_base_filter),
145 SOC_ENUM_SINGLE(WM8753_TREBLE, 6, 2, wm8753_treble),
146 SOC_ENUM_SINGLE(WM8753_ALC1, 7, 4, wm8753_alc_func),
147 SOC_ENUM_SINGLE(WM8753_NGATE, 1, 2, wm8753_ng_type),
148 SOC_ENUM_SINGLE(WM8753_3D, 7, 2, wm8753_3d_func),
149 SOC_ENUM_SINGLE(WM8753_3D, 6, 2, wm8753_3d_uc),
150 SOC_ENUM_SINGLE(WM8753_3D, 5, 2, wm8753_3d_lc),
151 SOC_ENUM_SINGLE(WM8753_DAC, 1, 4, wm8753_deemp),
152 SOC_ENUM_SINGLE(WM8753_DAC, 4, 4, wm8753_mono_mix),
153 SOC_ENUM_SINGLE(WM8753_DAC, 6, 2, wm8753_dac_phase),
154 SOC_ENUM_SINGLE(WM8753_INCTL1, 3, 4, wm8753_line_mix),
155 SOC_ENUM_SINGLE(WM8753_INCTL1, 2, 2, wm8753_mono_mux),
156 SOC_ENUM_SINGLE(WM8753_INCTL1, 1, 2, wm8753_right_mux),
157 SOC_ENUM_SINGLE(WM8753_INCTL1, 0, 2, wm8753_left_mux),
158 SOC_ENUM_SINGLE(WM8753_INCTL2, 6, 4, wm8753_rxmsel),
159 SOC_ENUM_SINGLE(WM8753_INCTL2, 4, 4, wm8753_sidetone_mux),
160 SOC_ENUM_SINGLE(WM8753_OUTCTL, 7, 4, wm8753_mono2_src),
161 SOC_ENUM_SINGLE(WM8753_OUTCTL, 0, 3, wm8753_out3),
162 SOC_ENUM_SINGLE(WM8753_ADCTL2, 7, 3, wm8753_out4),
163 SOC_ENUM_SINGLE(WM8753_ADCIN, 2, 3, wm8753_radcsel),
164 SOC_ENUM_SINGLE(WM8753_ADCIN, 0, 3, wm8753_ladcsel),
165 SOC_ENUM_SINGLE(WM8753_ADCIN, 4, 4, wm8753_mono_adc),
166 SOC_ENUM_SINGLE(WM8753_ADC, 2, 4, wm8753_adc_hp),
167 SOC_ENUM_SINGLE(WM8753_ADC, 4, 2, wm8753_adc_filter),
168 SOC_ENUM_SINGLE(WM8753_MICBIAS, 6, 3, wm8753_mic_sel),
169 SOC_ENUM_SINGLE(WM8753_IOCTL, 2, 4, wm8753_dai_mode),
170 SOC_ENUM_SINGLE(WM8753_ADC, 7, 4, wm8753_dat_sel),
171 SOC_ENUM_SINGLE(WM8753_OUTCTL, 2, 2, wm8753_rout2_phase),
172 };
173
174
175 static int wm8753_get_dai(struct snd_kcontrol *kcontrol,
176 struct snd_ctl_elem_value *ucontrol)
177 {
178 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
179 struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);
180
181 ucontrol->value.integer.value[0] = wm8753->dai_func;
182 return 0;
183 }
184
185 static int wm8753_set_dai(struct snd_kcontrol *kcontrol,
186 struct snd_ctl_elem_value *ucontrol)
187 {
188 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
189 struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);
190 u16 ioctl;
191
192 if (wm8753->dai_func == ucontrol->value.integer.value[0])
193 return 0;
194
195 if (codec->active)
196 return -EBUSY;
197
198 ioctl = snd_soc_read(codec, WM8753_IOCTL);
199
200 wm8753->dai_func = ucontrol->value.integer.value[0];
201
202 if (((ioctl >> 2) & 0x3) == wm8753->dai_func)
203 return 1;
204
205 ioctl = (ioctl & 0x1f3) | (wm8753->dai_func << 2);
206 snd_soc_write(codec, WM8753_IOCTL, ioctl);
207
208
209 wm8753_hifi_write_dai_fmt(codec, wm8753->hifi_fmt);
210 wm8753_voice_write_dai_fmt(codec, wm8753->voice_fmt);
211
212 return 1;
213 }
214
215 static const DECLARE_TLV_DB_SCALE(rec_mix_tlv, -1500, 300, 0);
216 static const DECLARE_TLV_DB_SCALE(mic_preamp_tlv, 1200, 600, 0);
217 static const DECLARE_TLV_DB_SCALE(adc_tlv, -9750, 50, 1);
218 static const DECLARE_TLV_DB_SCALE(dac_tlv, -12750, 50, 1);
219 static const unsigned int out_tlv[] = {
220 TLV_DB_RANGE_HEAD(2),
221 /* 0000000 - 0101111 = "Analogue mute" */
222 0, 48, TLV_DB_SCALE_ITEM(-25500, 0, 0),
223 48, 127, TLV_DB_SCALE_ITEM(-7300, 100, 0),
224 };
225 static const DECLARE_TLV_DB_SCALE(mix_tlv, -1500, 300, 0);
226 static const DECLARE_TLV_DB_SCALE(voice_mix_tlv, -1200, 300, 0);
227 static const DECLARE_TLV_DB_SCALE(pga_tlv, -1725, 75, 0);
228
229 static const struct snd_kcontrol_new wm8753_snd_controls[] = {
230 SOC_DOUBLE_R_TLV("PCM Volume", WM8753_LDAC, WM8753_RDAC, 0, 255, 0, dac_tlv),
231
232 SOC_DOUBLE_R_TLV("ADC Capture Volume", WM8753_LADC, WM8753_RADC, 0, 255, 0,
233 adc_tlv),
234
235 SOC_DOUBLE_R_TLV("Headphone Playback Volume", WM8753_LOUT1V, WM8753_ROUT1V,
236 0, 127, 0, out_tlv),
237 SOC_DOUBLE_R_TLV("Speaker Playback Volume", WM8753_LOUT2V, WM8753_ROUT2V, 0,
238 127, 0, out_tlv),
239
240 SOC_SINGLE_TLV("Mono Playback Volume", WM8753_MOUTV, 0, 127, 0, out_tlv),
241
242 SOC_DOUBLE_R_TLV("Bypass Playback Volume", WM8753_LOUTM1, WM8753_ROUTM1, 4, 7,
243 1, mix_tlv),
244 SOC_DOUBLE_R_TLV("Sidetone Playback Volume", WM8753_LOUTM2, WM8753_ROUTM2, 4,
245 7, 1, mix_tlv),
246 SOC_DOUBLE_R_TLV("Voice Playback Volume", WM8753_LOUTM2, WM8753_ROUTM2, 0, 7,
247 1, voice_mix_tlv),
248
249 SOC_DOUBLE_R("Headphone Playback ZC Switch", WM8753_LOUT1V, WM8753_ROUT1V, 7,
250 1, 0),
251 SOC_DOUBLE_R("Speaker Playback ZC Switch", WM8753_LOUT2V, WM8753_ROUT2V, 7,
252 1, 0),
253
254 SOC_SINGLE_TLV("Mono Bypass Playback Volume", WM8753_MOUTM1, 4, 7, 1, mix_tlv),
255 SOC_SINGLE_TLV("Mono Sidetone Playback Volume", WM8753_MOUTM2, 4, 7, 1,
256 mix_tlv),
257 SOC_SINGLE_TLV("Mono Voice Playback Volume", WM8753_MOUTM2, 0, 7, 1,
258 voice_mix_tlv),
259 SOC_SINGLE("Mono Playback ZC Switch", WM8753_MOUTV, 7, 1, 0),
260
261 SOC_ENUM("Bass Boost", wm8753_enum[0]),
262 SOC_ENUM("Bass Filter", wm8753_enum[1]),
263 SOC_SINGLE("Bass Volume", WM8753_BASS, 0, 15, 1),
264
265 SOC_SINGLE("Treble Volume", WM8753_TREBLE, 0, 15, 1),
266 SOC_ENUM("Treble Cut-off", wm8753_enum[2]),
267
268 SOC_DOUBLE_TLV("Sidetone Capture Volume", WM8753_RECMIX1, 0, 4, 7, 1,
269 rec_mix_tlv),
270 SOC_SINGLE_TLV("Voice Sidetone Capture Volume", WM8753_RECMIX2, 0, 7, 1,
271 rec_mix_tlv),
272
273 SOC_DOUBLE_R_TLV("Capture Volume", WM8753_LINVOL, WM8753_RINVOL, 0, 63, 0,
274 pga_tlv),
275 SOC_DOUBLE_R("Capture ZC Switch", WM8753_LINVOL, WM8753_RINVOL, 6, 1, 0),
276 SOC_DOUBLE_R("Capture Switch", WM8753_LINVOL, WM8753_RINVOL, 7, 1, 1),
277
278 SOC_ENUM("Capture Filter Select", wm8753_enum[23]),
279 SOC_ENUM("Capture Filter Cut-off", wm8753_enum[24]),
280 SOC_SINGLE("Capture Filter Switch", WM8753_ADC, 0, 1, 1),
281
282 SOC_SINGLE("ALC Capture Target Volume", WM8753_ALC1, 0, 7, 0),
283 SOC_SINGLE("ALC Capture Max Volume", WM8753_ALC1, 4, 7, 0),
284 SOC_ENUM("ALC Capture Function", wm8753_enum[3]),
285 SOC_SINGLE("ALC Capture ZC Switch", WM8753_ALC2, 8, 1, 0),
286 SOC_SINGLE("ALC Capture Hold Time", WM8753_ALC2, 0, 15, 1),
287 SOC_SINGLE("ALC Capture Decay Time", WM8753_ALC3, 4, 15, 1),
288 SOC_SINGLE("ALC Capture Attack Time", WM8753_ALC3, 0, 15, 0),
289 SOC_SINGLE("ALC Capture NG Threshold", WM8753_NGATE, 3, 31, 0),
290 SOC_ENUM("ALC Capture NG Type", wm8753_enum[4]),
291 SOC_SINGLE("ALC Capture NG Switch", WM8753_NGATE, 0, 1, 0),
292
293 SOC_ENUM("3D Function", wm8753_enum[5]),
294 SOC_ENUM("3D Upper Cut-off", wm8753_enum[6]),
295 SOC_ENUM("3D Lower Cut-off", wm8753_enum[7]),
296 SOC_SINGLE("3D Volume", WM8753_3D, 1, 15, 0),
297 SOC_SINGLE("3D Switch", WM8753_3D, 0, 1, 0),
298
299 SOC_SINGLE("Capture 6dB Attenuate", WM8753_ADCTL1, 2, 1, 0),
300 SOC_SINGLE("Playback 6dB Attenuate", WM8753_ADCTL1, 1, 1, 0),
301
302 SOC_ENUM("De-emphasis", wm8753_enum[8]),
303 SOC_ENUM("Playback Mono Mix", wm8753_enum[9]),
304 SOC_ENUM("Playback Phase", wm8753_enum[10]),
305
306 SOC_SINGLE_TLV("Mic2 Capture Volume", WM8753_INCTL1, 7, 3, 0, mic_preamp_tlv),
307 SOC_SINGLE_TLV("Mic1 Capture Volume", WM8753_INCTL1, 5, 3, 0, mic_preamp_tlv),
308
309 SOC_ENUM_EXT("DAI Mode", wm8753_enum[26], wm8753_get_dai, wm8753_set_dai),
310
311 SOC_ENUM("ADC Data Select", wm8753_enum[27]),
312 SOC_ENUM("ROUT2 Phase", wm8753_enum[28]),
313 };
314
315 /*
316 * _DAPM_ Controls
317 */
318
319 /* Left Mixer */
320 static const struct snd_kcontrol_new wm8753_left_mixer_controls[] = {
321 SOC_DAPM_SINGLE("Voice Playback Switch", WM8753_LOUTM2, 8, 1, 0),
322 SOC_DAPM_SINGLE("Sidetone Playback Switch", WM8753_LOUTM2, 7, 1, 0),
323 SOC_DAPM_SINGLE("Left Playback Switch", WM8753_LOUTM1, 8, 1, 0),
324 SOC_DAPM_SINGLE("Bypass Playback Switch", WM8753_LOUTM1, 7, 1, 0),
325 };
326
327 /* Right mixer */
328 static const struct snd_kcontrol_new wm8753_right_mixer_controls[] = {
329 SOC_DAPM_SINGLE("Voice Playback Switch", WM8753_ROUTM2, 8, 1, 0),
330 SOC_DAPM_SINGLE("Sidetone Playback Switch", WM8753_ROUTM2, 7, 1, 0),
331 SOC_DAPM_SINGLE("Right Playback Switch", WM8753_ROUTM1, 8, 1, 0),
332 SOC_DAPM_SINGLE("Bypass Playback Switch", WM8753_ROUTM1, 7, 1, 0),
333 };
334
335 /* Mono mixer */
336 static const struct snd_kcontrol_new wm8753_mono_mixer_controls[] = {
337 SOC_DAPM_SINGLE("Left Playback Switch", WM8753_MOUTM1, 8, 1, 0),
338 SOC_DAPM_SINGLE("Right Playback Switch", WM8753_MOUTM2, 8, 1, 0),
339 SOC_DAPM_SINGLE("Voice Playback Switch", WM8753_MOUTM2, 3, 1, 0),
340 SOC_DAPM_SINGLE("Sidetone Playback Switch", WM8753_MOUTM2, 7, 1, 0),
341 SOC_DAPM_SINGLE("Bypass Playback Switch", WM8753_MOUTM1, 7, 1, 0),
342 };
343
344 /* Mono 2 Mux */
345 static const struct snd_kcontrol_new wm8753_mono2_controls =
346 SOC_DAPM_ENUM("Route", wm8753_enum[17]);
347
348 /* Out 3 Mux */
349 static const struct snd_kcontrol_new wm8753_out3_controls =
350 SOC_DAPM_ENUM("Route", wm8753_enum[18]);
351
352 /* Out 4 Mux */
353 static const struct snd_kcontrol_new wm8753_out4_controls =
354 SOC_DAPM_ENUM("Route", wm8753_enum[19]);
355
356 /* ADC Mono Mix */
357 static const struct snd_kcontrol_new wm8753_adc_mono_controls =
358 SOC_DAPM_ENUM("Route", wm8753_enum[22]);
359
360 /* Record mixer */
361 static const struct snd_kcontrol_new wm8753_record_mixer_controls[] = {
362 SOC_DAPM_SINGLE("Voice Capture Switch", WM8753_RECMIX2, 3, 1, 0),
363 SOC_DAPM_SINGLE("Left Capture Switch", WM8753_RECMIX1, 3, 1, 0),
364 SOC_DAPM_SINGLE("Right Capture Switch", WM8753_RECMIX1, 7, 1, 0),
365 };
366
367 /* Left ADC mux */
368 static const struct snd_kcontrol_new wm8753_adc_left_controls =
369 SOC_DAPM_ENUM("Route", wm8753_enum[21]);
370
371 /* Right ADC mux */
372 static const struct snd_kcontrol_new wm8753_adc_right_controls =
373 SOC_DAPM_ENUM("Route", wm8753_enum[20]);
374
375 /* MIC mux */
376 static const struct snd_kcontrol_new wm8753_mic_mux_controls =
377 SOC_DAPM_ENUM("Route", wm8753_enum[16]);
378
379 /* ALC mixer */
380 static const struct snd_kcontrol_new wm8753_alc_mixer_controls[] = {
381 SOC_DAPM_SINGLE("Line Capture Switch", WM8753_INCTL2, 3, 1, 0),
382 SOC_DAPM_SINGLE("Mic2 Capture Switch", WM8753_INCTL2, 2, 1, 0),
383 SOC_DAPM_SINGLE("Mic1 Capture Switch", WM8753_INCTL2, 1, 1, 0),
384 SOC_DAPM_SINGLE("Rx Capture Switch", WM8753_INCTL2, 0, 1, 0),
385 };
386
387 /* Left Line mux */
388 static const struct snd_kcontrol_new wm8753_line_left_controls =
389 SOC_DAPM_ENUM("Route", wm8753_enum[14]);
390
391 /* Right Line mux */
392 static const struct snd_kcontrol_new wm8753_line_right_controls =
393 SOC_DAPM_ENUM("Route", wm8753_enum[13]);
394
395 /* Mono Line mux */
396 static const struct snd_kcontrol_new wm8753_line_mono_controls =
397 SOC_DAPM_ENUM("Route", wm8753_enum[12]);
398
399 /* Line mux and mixer */
400 static const struct snd_kcontrol_new wm8753_line_mux_mix_controls =
401 SOC_DAPM_ENUM("Route", wm8753_enum[11]);
402
403 /* Rx mux and mixer */
404 static const struct snd_kcontrol_new wm8753_rx_mux_mix_controls =
405 SOC_DAPM_ENUM("Route", wm8753_enum[15]);
406
407 /* Mic Selector Mux */
408 static const struct snd_kcontrol_new wm8753_mic_sel_mux_controls =
409 SOC_DAPM_ENUM("Route", wm8753_enum[25]);
410
411 static const struct snd_soc_dapm_widget wm8753_dapm_widgets[] = {
412 SND_SOC_DAPM_MICBIAS("Mic Bias", WM8753_PWR1, 5, 0),
413 SND_SOC_DAPM_MIXER("Left Mixer", WM8753_PWR4, 0, 0,
414 &wm8753_left_mixer_controls[0], ARRAY_SIZE(wm8753_left_mixer_controls)),
415 SND_SOC_DAPM_PGA("Left Out 1", WM8753_PWR3, 8, 0, NULL, 0),
416 SND_SOC_DAPM_PGA("Left Out 2", WM8753_PWR3, 6, 0, NULL, 0),
417 SND_SOC_DAPM_DAC("Left DAC", "Left HiFi Playback", WM8753_PWR1, 3, 0),
418 SND_SOC_DAPM_OUTPUT("LOUT1"),
419 SND_SOC_DAPM_OUTPUT("LOUT2"),
420 SND_SOC_DAPM_MIXER("Right Mixer", WM8753_PWR4, 1, 0,
421 &wm8753_right_mixer_controls[0], ARRAY_SIZE(wm8753_right_mixer_controls)),
422 SND_SOC_DAPM_PGA("Right Out 1", WM8753_PWR3, 7, 0, NULL, 0),
423 SND_SOC_DAPM_PGA("Right Out 2", WM8753_PWR3, 5, 0, NULL, 0),
424 SND_SOC_DAPM_DAC("Right DAC", "Right HiFi Playback", WM8753_PWR1, 2, 0),
425 SND_SOC_DAPM_OUTPUT("ROUT1"),
426 SND_SOC_DAPM_OUTPUT("ROUT2"),
427 SND_SOC_DAPM_MIXER("Mono Mixer", WM8753_PWR4, 2, 0,
428 &wm8753_mono_mixer_controls[0], ARRAY_SIZE(wm8753_mono_mixer_controls)),
429 SND_SOC_DAPM_PGA("Mono Out 1", WM8753_PWR3, 2, 0, NULL, 0),
430 SND_SOC_DAPM_PGA("Mono Out 2", WM8753_PWR3, 1, 0, NULL, 0),
431 SND_SOC_DAPM_DAC("Voice DAC", "Voice Playback", WM8753_PWR1, 4, 0),
432 SND_SOC_DAPM_OUTPUT("MONO1"),
433 SND_SOC_DAPM_MUX("Mono 2 Mux", SND_SOC_NOPM, 0, 0, &wm8753_mono2_controls),
434 SND_SOC_DAPM_OUTPUT("MONO2"),
435 SND_SOC_DAPM_MIXER("Out3 Left + Right", -1, 0, 0, NULL, 0),
436 SND_SOC_DAPM_MUX("Out3 Mux", SND_SOC_NOPM, 0, 0, &wm8753_out3_controls),
437 SND_SOC_DAPM_PGA("Out 3", WM8753_PWR3, 4, 0, NULL, 0),
438 SND_SOC_DAPM_OUTPUT("OUT3"),
439 SND_SOC_DAPM_MUX("Out4 Mux", SND_SOC_NOPM, 0, 0, &wm8753_out4_controls),
440 SND_SOC_DAPM_PGA("Out 4", WM8753_PWR3, 3, 0, NULL, 0),
441 SND_SOC_DAPM_OUTPUT("OUT4"),
442 SND_SOC_DAPM_MIXER("Playback Mixer", WM8753_PWR4, 3, 0,
443 &wm8753_record_mixer_controls[0],
444 ARRAY_SIZE(wm8753_record_mixer_controls)),
445 SND_SOC_DAPM_ADC("Left ADC", "Left Capture", WM8753_PWR2, 3, 0),
446 SND_SOC_DAPM_ADC("Right ADC", "Right Capture", WM8753_PWR2, 2, 0),
447 SND_SOC_DAPM_MUX("Capture Left Mixer", SND_SOC_NOPM, 0, 0,
448 &wm8753_adc_mono_controls),
449 SND_SOC_DAPM_MUX("Capture Right Mixer", SND_SOC_NOPM, 0, 0,
450 &wm8753_adc_mono_controls),
451 SND_SOC_DAPM_MUX("Capture Left Mux", SND_SOC_NOPM, 0, 0,
452 &wm8753_adc_left_controls),
453 SND_SOC_DAPM_MUX("Capture Right Mux", SND_SOC_NOPM, 0, 0,
454 &wm8753_adc_right_controls),
455 SND_SOC_DAPM_MUX("Mic Sidetone Mux", SND_SOC_NOPM, 0, 0,
456 &wm8753_mic_mux_controls),
457 SND_SOC_DAPM_PGA("Left Capture Volume", WM8753_PWR2, 5, 0, NULL, 0),
458 SND_SOC_DAPM_PGA("Right Capture Volume", WM8753_PWR2, 4, 0, NULL, 0),
459 SND_SOC_DAPM_MIXER("ALC Mixer", WM8753_PWR2, 6, 0,
460 &wm8753_alc_mixer_controls[0], ARRAY_SIZE(wm8753_alc_mixer_controls)),
461 SND_SOC_DAPM_MUX("Line Left Mux", SND_SOC_NOPM, 0, 0,
462 &wm8753_line_left_controls),
463 SND_SOC_DAPM_MUX("Line Right Mux", SND_SOC_NOPM, 0, 0,
464 &wm8753_line_right_controls),
465 SND_SOC_DAPM_MUX("Line Mono Mux", SND_SOC_NOPM, 0, 0,
466 &wm8753_line_mono_controls),
467 SND_SOC_DAPM_MUX("Line Mixer", WM8753_PWR2, 0, 0,
468 &wm8753_line_mux_mix_controls),
469 SND_SOC_DAPM_MUX("Rx Mixer", WM8753_PWR2, 1, 0,
470 &wm8753_rx_mux_mix_controls),
471 SND_SOC_DAPM_PGA("Mic 1 Volume", WM8753_PWR2, 8, 0, NULL, 0),
472 SND_SOC_DAPM_PGA("Mic 2 Volume", WM8753_PWR2, 7, 0, NULL, 0),
473 SND_SOC_DAPM_MUX("Mic Selection Mux", SND_SOC_NOPM, 0, 0,
474 &wm8753_mic_sel_mux_controls),
475 SND_SOC_DAPM_INPUT("LINE1"),
476 SND_SOC_DAPM_INPUT("LINE2"),
477 SND_SOC_DAPM_INPUT("RXP"),
478 SND_SOC_DAPM_INPUT("RXN"),
479 SND_SOC_DAPM_INPUT("ACIN"),
480 SND_SOC_DAPM_OUTPUT("ACOP"),
481 SND_SOC_DAPM_INPUT("MIC1N"),
482 SND_SOC_DAPM_INPUT("MIC1"),
483 SND_SOC_DAPM_INPUT("MIC2N"),
484 SND_SOC_DAPM_INPUT("MIC2"),
485 SND_SOC_DAPM_VMID("VREF"),
486 };
487
488 static const struct snd_soc_dapm_route wm8753_dapm_routes[] = {
489 /* left mixer */
490 {"Left Mixer", "Left Playback Switch", "Left DAC"},
491 {"Left Mixer", "Voice Playback Switch", "Voice DAC"},
492 {"Left Mixer", "Sidetone Playback Switch", "Mic Sidetone Mux"},
493 {"Left Mixer", "Bypass Playback Switch", "Line Left Mux"},
494
495 /* right mixer */
496 {"Right Mixer", "Right Playback Switch", "Right DAC"},
497 {"Right Mixer", "Voice Playback Switch", "Voice DAC"},
498 {"Right Mixer", "Sidetone Playback Switch", "Mic Sidetone Mux"},
499 {"Right Mixer", "Bypass Playback Switch", "Line Right Mux"},
500
501 /* mono mixer */
502 {"Mono Mixer", "Voice Playback Switch", "Voice DAC"},
503 {"Mono Mixer", "Left Playback Switch", "Left DAC"},
504 {"Mono Mixer", "Right Playback Switch", "Right DAC"},
505 {"Mono Mixer", "Sidetone Playback Switch", "Mic Sidetone Mux"},
506 {"Mono Mixer", "Bypass Playback Switch", "Line Mono Mux"},
507
508 /* left out */
509 {"Left Out 1", NULL, "Left Mixer"},
510 {"Left Out 2", NULL, "Left Mixer"},
511 {"LOUT1", NULL, "Left Out 1"},
512 {"LOUT2", NULL, "Left Out 2"},
513
514 /* right out */
515 {"Right Out 1", NULL, "Right Mixer"},
516 {"Right Out 2", NULL, "Right Mixer"},
517 {"ROUT1", NULL, "Right Out 1"},
518 {"ROUT2", NULL, "Right Out 2"},
519
520 /* mono 1 out */
521 {"Mono Out 1", NULL, "Mono Mixer"},
522 {"MONO1", NULL, "Mono Out 1"},
523
524 /* mono 2 out */
525 {"Mono 2 Mux", "Left + Right", "Out3 Left + Right"},
526 {"Mono 2 Mux", "Inverted Mono 1", "MONO1"},
527 {"Mono 2 Mux", "Left", "Left Mixer"},
528 {"Mono 2 Mux", "Right", "Right Mixer"},
529 {"Mono Out 2", NULL, "Mono 2 Mux"},
530 {"MONO2", NULL, "Mono Out 2"},
531
532 /* out 3 */
533 {"Out3 Left + Right", NULL, "Left Mixer"},
534 {"Out3 Left + Right", NULL, "Right Mixer"},
535 {"Out3 Mux", "VREF", "VREF"},
536 {"Out3 Mux", "Left + Right", "Out3 Left + Right"},
537 {"Out3 Mux", "ROUT2", "ROUT2"},
538 {"Out 3", NULL, "Out3 Mux"},
539 {"OUT3", NULL, "Out 3"},
540
541 /* out 4 */
542 {"Out4 Mux", "VREF", "VREF"},
543 {"Out4 Mux", "Capture ST", "Playback Mixer"},
544 {"Out4 Mux", "LOUT2", "LOUT2"},
545 {"Out 4", NULL, "Out4 Mux"},
546 {"OUT4", NULL, "Out 4"},
547
548 /* record mixer */
549 {"Playback Mixer", "Left Capture Switch", "Left Mixer"},
550 {"Playback Mixer", "Voice Capture Switch", "Mono Mixer"},
551 {"Playback Mixer", "Right Capture Switch", "Right Mixer"},
552
553 /* Mic/SideTone Mux */
554 {"Mic Sidetone Mux", "Left PGA", "Left Capture Volume"},
555 {"Mic Sidetone Mux", "Right PGA", "Right Capture Volume"},
556 {"Mic Sidetone Mux", "Mic 1", "Mic 1 Volume"},
557 {"Mic Sidetone Mux", "Mic 2", "Mic 2 Volume"},
558
559 /* Capture Left Mux */
560 {"Capture Left Mux", "PGA", "Left Capture Volume"},
561 {"Capture Left Mux", "Line or RXP-RXN", "Line Left Mux"},
562 {"Capture Left Mux", "Line", "LINE1"},
563
564 /* Capture Right Mux */
565 {"Capture Right Mux", "PGA", "Right Capture Volume"},
566 {"Capture Right Mux", "Line or RXP-RXN", "Line Right Mux"},
567 {"Capture Right Mux", "Sidetone", "Playback Mixer"},
568
569 /* Mono Capture mixer-mux */
570 {"Capture Right Mixer", "Stereo", "Capture Right Mux"},
571 {"Capture Left Mixer", "Stereo", "Capture Left Mux"},
572 {"Capture Left Mixer", "Analogue Mix Left", "Capture Left Mux"},
573 {"Capture Left Mixer", "Analogue Mix Left", "Capture Right Mux"},
574 {"Capture Right Mixer", "Analogue Mix Right", "Capture Left Mux"},
575 {"Capture Right Mixer", "Analogue Mix Right", "Capture Right Mux"},
576 {"Capture Left Mixer", "Digital Mono Mix", "Capture Left Mux"},
577 {"Capture Left Mixer", "Digital Mono Mix", "Capture Right Mux"},
578 {"Capture Right Mixer", "Digital Mono Mix", "Capture Left Mux"},
579 {"Capture Right Mixer", "Digital Mono Mix", "Capture Right Mux"},
580
581 /* ADC */
582 {"Left ADC", NULL, "Capture Left Mixer"},
583 {"Right ADC", NULL, "Capture Right Mixer"},
584
585 /* Left Capture Volume */
586 {"Left Capture Volume", NULL, "ACIN"},
587
588 /* Right Capture Volume */
589 {"Right Capture Volume", NULL, "Mic 2 Volume"},
590
591 /* ALC Mixer */
592 {"ALC Mixer", "Line Capture Switch", "Line Mixer"},
593 {"ALC Mixer", "Mic2 Capture Switch", "Mic 2 Volume"},
594 {"ALC Mixer", "Mic1 Capture Switch", "Mic 1 Volume"},
595 {"ALC Mixer", "Rx Capture Switch", "Rx Mixer"},
596
597 /* Line Left Mux */
598 {"Line Left Mux", "Line 1", "LINE1"},
599 {"Line Left Mux", "Rx Mix", "Rx Mixer"},
600
601 /* Line Right Mux */
602 {"Line Right Mux", "Line 2", "LINE2"},
603 {"Line Right Mux", "Rx Mix", "Rx Mixer"},
604
605 /* Line Mono Mux */
606 {"Line Mono Mux", "Line Mix", "Line Mixer"},
607 {"Line Mono Mux", "Rx Mix", "Rx Mixer"},
608
609 /* Line Mixer/Mux */
610 {"Line Mixer", "Line 1 + 2", "LINE1"},
611 {"Line Mixer", "Line 1 - 2", "LINE1"},
612 {"Line Mixer", "Line 1 + 2", "LINE2"},
613 {"Line Mixer", "Line 1 - 2", "LINE2"},
614 {"Line Mixer", "Line 1", "LINE1"},
615 {"Line Mixer", "Line 2", "LINE2"},
616
617 /* Rx Mixer/Mux */
618 {"Rx Mixer", "RXP - RXN", "RXP"},
619 {"Rx Mixer", "RXP + RXN", "RXP"},
620 {"Rx Mixer", "RXP - RXN", "RXN"},
621 {"Rx Mixer", "RXP + RXN", "RXN"},
622 {"Rx Mixer", "RXP", "RXP"},
623 {"Rx Mixer", "RXN", "RXN"},
624
625 /* Mic 1 Volume */
626 {"Mic 1 Volume", NULL, "MIC1N"},
627 {"Mic 1 Volume", NULL, "Mic Selection Mux"},
628
629 /* Mic 2 Volume */
630 {"Mic 2 Volume", NULL, "MIC2N"},
631 {"Mic 2 Volume", NULL, "MIC2"},
632
633 /* Mic Selector Mux */
634 {"Mic Selection Mux", "Mic 1", "MIC1"},
635 {"Mic Selection Mux", "Mic 2", "MIC2N"},
636 {"Mic Selection Mux", "Mic 3", "MIC2"},
637
638 /* ACOP */
639 {"ACOP", NULL, "ALC Mixer"},
640 };
641
642 /* PLL divisors */
643 struct _pll_div {
644 u32 div2:1;
645 u32 n:4;
646 u32 k:24;
647 };
648
649 /* The size in bits of the pll divide multiplied by 10
650 * to allow rounding later */
651 #define FIXED_PLL_SIZE ((1 << 22) * 10)
652
653 static void pll_factors(struct _pll_div *pll_div, unsigned int target,
654 unsigned int source)
655 {
656 u64 Kpart;
657 unsigned int K, Ndiv, Nmod;
658
659 Ndiv = target / source;
660 if (Ndiv < 6) {
661 source >>= 1;
662 pll_div->div2 = 1;
663 Ndiv = target / source;
664 } else
665 pll_div->div2 = 0;
666
667 if ((Ndiv < 6) || (Ndiv > 12))
668 printk(KERN_WARNING
669 "wm8753: unsupported N = %u\n", Ndiv);
670
671 pll_div->n = Ndiv;
672 Nmod = target % source;
673 Kpart = FIXED_PLL_SIZE * (long long)Nmod;
674
675 do_div(Kpart, source);
676
677 K = Kpart & 0xFFFFFFFF;
678
679 /* Check if we need to round */
680 if ((K % 10) >= 5)
681 K += 5;
682
683 /* Move down to proper range now rounding is done */
684 K /= 10;
685
686 pll_div->k = K;
687 }
688
689 static int wm8753_set_dai_pll(struct snd_soc_dai *codec_dai, int pll_id,
690 int source, unsigned int freq_in, unsigned int freq_out)
691 {
692 u16 reg, enable;
693 int offset;
694 struct snd_soc_codec *codec = codec_dai->codec;
695
696 if (pll_id < WM8753_PLL1 || pll_id > WM8753_PLL2)
697 return -ENODEV;
698
699 if (pll_id == WM8753_PLL1) {
700 offset = 0;
701 enable = 0x10;
702 reg = snd_soc_read(codec, WM8753_CLOCK) & 0xffef;
703 } else {
704 offset = 4;
705 enable = 0x8;
706 reg = snd_soc_read(codec, WM8753_CLOCK) & 0xfff7;
707 }
708
709 if (!freq_in || !freq_out) {
710 /* disable PLL */
711 snd_soc_write(codec, WM8753_PLL1CTL1 + offset, 0x0026);
712 snd_soc_write(codec, WM8753_CLOCK, reg);
713 return 0;
714 } else {
715 u16 value = 0;
716 struct _pll_div pll_div;
717
718 pll_factors(&pll_div, freq_out * 8, freq_in);
719
720 /* set up N and K PLL divisor ratios */
721 /* bits 8:5 = PLL_N, bits 3:0 = PLL_K[21:18] */
722 value = (pll_div.n << 5) + ((pll_div.k & 0x3c0000) >> 18);
723 snd_soc_write(codec, WM8753_PLL1CTL2 + offset, value);
724
725 /* bits 8:0 = PLL_K[17:9] */
726 value = (pll_div.k & 0x03fe00) >> 9;
727 snd_soc_write(codec, WM8753_PLL1CTL3 + offset, value);
728
729 /* bits 8:0 = PLL_K[8:0] */
730 value = pll_div.k & 0x0001ff;
731 snd_soc_write(codec, WM8753_PLL1CTL4 + offset, value);
732
733 /* set PLL as input and enable */
734 snd_soc_write(codec, WM8753_PLL1CTL1 + offset, 0x0027 |
735 (pll_div.div2 << 3));
736 snd_soc_write(codec, WM8753_CLOCK, reg | enable);
737 }
738 return 0;
739 }
740
741 struct _coeff_div {
742 u32 mclk;
743 u32 rate;
744 u8 sr:5;
745 u8 usb:1;
746 };
747
748 /* codec hifi mclk (after PLL) clock divider coefficients */
749 static const struct _coeff_div coeff_div[] = {
750 /* 8k */
751 {12288000, 8000, 0x6, 0x0},
752 {11289600, 8000, 0x16, 0x0},
753 {18432000, 8000, 0x7, 0x0},
754 {16934400, 8000, 0x17, 0x0},
755 {12000000, 8000, 0x6, 0x1},
756
757 /* 11.025k */
758 {11289600, 11025, 0x18, 0x0},
759 {16934400, 11025, 0x19, 0x0},
760 {12000000, 11025, 0x19, 0x1},
761
762 /* 16k */
763 {12288000, 16000, 0xa, 0x0},
764 {18432000, 16000, 0xb, 0x0},
765 {12000000, 16000, 0xa, 0x1},
766
767 /* 22.05k */
768 {11289600, 22050, 0x1a, 0x0},
769 {16934400, 22050, 0x1b, 0x0},
770 {12000000, 22050, 0x1b, 0x1},
771
772 /* 32k */
773 {12288000, 32000, 0xc, 0x0},
774 {18432000, 32000, 0xd, 0x0},
775 {12000000, 32000, 0xa, 0x1},
776
777 /* 44.1k */
778 {11289600, 44100, 0x10, 0x0},
779 {16934400, 44100, 0x11, 0x0},
780 {12000000, 44100, 0x11, 0x1},
781
782 /* 48k */
783 {12288000, 48000, 0x0, 0x0},
784 {18432000, 48000, 0x1, 0x0},
785 {12000000, 48000, 0x0, 0x1},
786
787 /* 88.2k */
788 {11289600, 88200, 0x1e, 0x0},
789 {16934400, 88200, 0x1f, 0x0},
790 {12000000, 88200, 0x1f, 0x1},
791
792 /* 96k */
793 {12288000, 96000, 0xe, 0x0},
794 {18432000, 96000, 0xf, 0x0},
795 {12000000, 96000, 0xe, 0x1},
796 };
797
798 static int get_coeff(int mclk, int rate)
799 {
800 int i;
801
802 for (i = 0; i < ARRAY_SIZE(coeff_div); i++) {
803 if (coeff_div[i].rate == rate && coeff_div[i].mclk == mclk)
804 return i;
805 }
806 return -EINVAL;
807 }
808
809 /*
810 * Clock after PLL and dividers
811 */
812 static int wm8753_set_dai_sysclk(struct snd_soc_dai *codec_dai,
813 int clk_id, unsigned int freq, int dir)
814 {
815 struct snd_soc_codec *codec = codec_dai->codec;
816 struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);
817
818 switch (freq) {
819 case 11289600:
820 case 12000000:
821 case 12288000:
822 case 16934400:
823 case 18432000:
824 if (clk_id == WM8753_MCLK) {
825 wm8753->sysclk = freq;
826 return 0;
827 } else if (clk_id == WM8753_PCMCLK) {
828 wm8753->pcmclk = freq;
829 return 0;
830 }
831 break;
832 }
833 return -EINVAL;
834 }
835
836 /*
837 * Set's ADC and Voice DAC format.
838 */
839 static int wm8753_vdac_adc_set_dai_fmt(struct snd_soc_codec *codec,
840 unsigned int fmt)
841 {
842 u16 voice = snd_soc_read(codec, WM8753_PCM) & 0x01ec;
843
844 /* interface format */
845 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
846 case SND_SOC_DAIFMT_I2S:
847 voice |= 0x0002;
848 break;
849 case SND_SOC_DAIFMT_RIGHT_J:
850 break;
851 case SND_SOC_DAIFMT_LEFT_J:
852 voice |= 0x0001;
853 break;
854 case SND_SOC_DAIFMT_DSP_A:
855 voice |= 0x0003;
856 break;
857 case SND_SOC_DAIFMT_DSP_B:
858 voice |= 0x0013;
859 break;
860 default:
861 return -EINVAL;
862 }
863
864 snd_soc_write(codec, WM8753_PCM, voice);
865 return 0;
866 }
867
868 /*
869 * Set PCM DAI bit size and sample rate.
870 */
871 static int wm8753_pcm_hw_params(struct snd_pcm_substream *substream,
872 struct snd_pcm_hw_params *params,
873 struct snd_soc_dai *dai)
874 {
875 struct snd_soc_pcm_runtime *rtd = substream->private_data;
876 struct snd_soc_codec *codec = rtd->codec;
877 struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);
878 u16 voice = snd_soc_read(codec, WM8753_PCM) & 0x01f3;
879 u16 srate = snd_soc_read(codec, WM8753_SRATE1) & 0x017f;
880
881 /* bit size */
882 switch (params_format(params)) {
883 case SNDRV_PCM_FORMAT_S16_LE:
884 break;
885 case SNDRV_PCM_FORMAT_S20_3LE:
886 voice |= 0x0004;
887 break;
888 case SNDRV_PCM_FORMAT_S24_LE:
889 voice |= 0x0008;
890 break;
891 case SNDRV_PCM_FORMAT_S32_LE:
892 voice |= 0x000c;
893 break;
894 }
895
896 /* sample rate */
897 if (params_rate(params) * 384 == wm8753->pcmclk)
898 srate |= 0x80;
899 snd_soc_write(codec, WM8753_SRATE1, srate);
900
901 snd_soc_write(codec, WM8753_PCM, voice);
902 return 0;
903 }
904
905 /*
906 * Set's PCM dai fmt and BCLK.
907 */
908 static int wm8753_pcm_set_dai_fmt(struct snd_soc_codec *codec,
909 unsigned int fmt)
910 {
911 u16 voice, ioctl;
912
913 voice = snd_soc_read(codec, WM8753_PCM) & 0x011f;
914 ioctl = snd_soc_read(codec, WM8753_IOCTL) & 0x015d;
915
916 /* set master/slave audio interface */
917 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
918 case SND_SOC_DAIFMT_CBS_CFS:
919 break;
920 case SND_SOC_DAIFMT_CBM_CFM:
921 ioctl |= 0x2;
922 case SND_SOC_DAIFMT_CBM_CFS:
923 voice |= 0x0040;
924 break;
925 default:
926 return -EINVAL;
927 }
928
929 /* clock inversion */
930 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
931 case SND_SOC_DAIFMT_DSP_A:
932 case SND_SOC_DAIFMT_DSP_B:
933 /* frame inversion not valid for DSP modes */
934 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
935 case SND_SOC_DAIFMT_NB_NF:
936 break;
937 case SND_SOC_DAIFMT_IB_NF:
938 voice |= 0x0080;
939 break;
940 default:
941 return -EINVAL;
942 }
943 break;
944 case SND_SOC_DAIFMT_I2S:
945 case SND_SOC_DAIFMT_RIGHT_J:
946 case SND_SOC_DAIFMT_LEFT_J:
947 voice &= ~0x0010;
948 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
949 case SND_SOC_DAIFMT_NB_NF:
950 break;
951 case SND_SOC_DAIFMT_IB_IF:
952 voice |= 0x0090;
953 break;
954 case SND_SOC_DAIFMT_IB_NF:
955 voice |= 0x0080;
956 break;
957 case SND_SOC_DAIFMT_NB_IF:
958 voice |= 0x0010;
959 break;
960 default:
961 return -EINVAL;
962 }
963 break;
964 default:
965 return -EINVAL;
966 }
967
968 snd_soc_write(codec, WM8753_PCM, voice);
969 snd_soc_write(codec, WM8753_IOCTL, ioctl);
970 return 0;
971 }
972
973 static int wm8753_set_dai_clkdiv(struct snd_soc_dai *codec_dai,
974 int div_id, int div)
975 {
976 struct snd_soc_codec *codec = codec_dai->codec;
977 u16 reg;
978
979 switch (div_id) {
980 case WM8753_PCMDIV:
981 reg = snd_soc_read(codec, WM8753_CLOCK) & 0x003f;
982 snd_soc_write(codec, WM8753_CLOCK, reg | div);
983 break;
984 case WM8753_BCLKDIV:
985 reg = snd_soc_read(codec, WM8753_SRATE2) & 0x01c7;
986 snd_soc_write(codec, WM8753_SRATE2, reg | div);
987 break;
988 case WM8753_VXCLKDIV:
989 reg = snd_soc_read(codec, WM8753_SRATE2) & 0x003f;
990 snd_soc_write(codec, WM8753_SRATE2, reg | div);
991 break;
992 default:
993 return -EINVAL;
994 }
995 return 0;
996 }
997
998 /*
999 * Set's HiFi DAC format.
1000 */
1001 static int wm8753_hdac_set_dai_fmt(struct snd_soc_codec *codec,
1002 unsigned int fmt)
1003 {
1004 u16 hifi = snd_soc_read(codec, WM8753_HIFI) & 0x01e0;
1005
1006 /* interface format */
1007 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
1008 case SND_SOC_DAIFMT_I2S:
1009 hifi |= 0x0002;
1010 break;
1011 case SND_SOC_DAIFMT_RIGHT_J:
1012 break;
1013 case SND_SOC_DAIFMT_LEFT_J:
1014 hifi |= 0x0001;
1015 break;
1016 case SND_SOC_DAIFMT_DSP_A:
1017 hifi |= 0x0003;
1018 break;
1019 case SND_SOC_DAIFMT_DSP_B:
1020 hifi |= 0x0013;
1021 break;
1022 default:
1023 return -EINVAL;
1024 }
1025
1026 snd_soc_write(codec, WM8753_HIFI, hifi);
1027 return 0;
1028 }
1029
1030 /*
1031 * Set's I2S DAI format.
1032 */
1033 static int wm8753_i2s_set_dai_fmt(struct snd_soc_codec *codec,
1034 unsigned int fmt)
1035 {
1036 u16 ioctl, hifi;
1037
1038 hifi = snd_soc_read(codec, WM8753_HIFI) & 0x011f;
1039 ioctl = snd_soc_read(codec, WM8753_IOCTL) & 0x00ae;
1040
1041 /* set master/slave audio interface */
1042 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
1043 case SND_SOC_DAIFMT_CBS_CFS:
1044 break;
1045 case SND_SOC_DAIFMT_CBM_CFM:
1046 ioctl |= 0x1;
1047 case SND_SOC_DAIFMT_CBM_CFS:
1048 hifi |= 0x0040;
1049 break;
1050 default:
1051 return -EINVAL;
1052 }
1053
1054 /* clock inversion */
1055 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
1056 case SND_SOC_DAIFMT_DSP_A:
1057 case SND_SOC_DAIFMT_DSP_B:
1058 /* frame inversion not valid for DSP modes */
1059 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
1060 case SND_SOC_DAIFMT_NB_NF:
1061 break;
1062 case SND_SOC_DAIFMT_IB_NF:
1063 hifi |= 0x0080;
1064 break;
1065 default:
1066 return -EINVAL;
1067 }
1068 break;
1069 case SND_SOC_DAIFMT_I2S:
1070 case SND_SOC_DAIFMT_RIGHT_J:
1071 case SND_SOC_DAIFMT_LEFT_J:
1072 hifi &= ~0x0010;
1073 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
1074 case SND_SOC_DAIFMT_NB_NF:
1075 break;
1076 case SND_SOC_DAIFMT_IB_IF:
1077 hifi |= 0x0090;
1078 break;
1079 case SND_SOC_DAIFMT_IB_NF:
1080 hifi |= 0x0080;
1081 break;
1082 case SND_SOC_DAIFMT_NB_IF:
1083 hifi |= 0x0010;
1084 break;
1085 default:
1086 return -EINVAL;
1087 }
1088 break;
1089 default:
1090 return -EINVAL;
1091 }
1092
1093 snd_soc_write(codec, WM8753_HIFI, hifi);
1094 snd_soc_write(codec, WM8753_IOCTL, ioctl);
1095 return 0;
1096 }
1097
1098 /*
1099 * Set PCM DAI bit size and sample rate.
1100 */
1101 static int wm8753_i2s_hw_params(struct snd_pcm_substream *substream,
1102 struct snd_pcm_hw_params *params,
1103 struct snd_soc_dai *dai)
1104 {
1105 struct snd_soc_pcm_runtime *rtd = substream->private_data;
1106 struct snd_soc_codec *codec = rtd->codec;
1107 struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);
1108 u16 srate = snd_soc_read(codec, WM8753_SRATE1) & 0x01c0;
1109 u16 hifi = snd_soc_read(codec, WM8753_HIFI) & 0x01f3;
1110 int coeff;
1111
1112 /* is digital filter coefficient valid ? */
1113 coeff = get_coeff(wm8753->sysclk, params_rate(params));
1114 if (coeff < 0) {
1115 printk(KERN_ERR "wm8753 invalid MCLK or rate\n");
1116 return coeff;
1117 }
1118 snd_soc_write(codec, WM8753_SRATE1, srate | (coeff_div[coeff].sr << 1) |
1119 coeff_div[coeff].usb);
1120
1121 /* bit size */
1122 switch (params_format(params)) {
1123 case SNDRV_PCM_FORMAT_S16_LE:
1124 break;
1125 case SNDRV_PCM_FORMAT_S20_3LE:
1126 hifi |= 0x0004;
1127 break;
1128 case SNDRV_PCM_FORMAT_S24_LE:
1129 hifi |= 0x0008;
1130 break;
1131 case SNDRV_PCM_FORMAT_S32_LE:
1132 hifi |= 0x000c;
1133 break;
1134 }
1135
1136 snd_soc_write(codec, WM8753_HIFI, hifi);
1137 return 0;
1138 }
1139
1140 static int wm8753_mode1v_set_dai_fmt(struct snd_soc_codec *codec,
1141 unsigned int fmt)
1142 {
1143 u16 clock;
1144
1145 /* set clk source as pcmclk */
1146 clock = snd_soc_read(codec, WM8753_CLOCK) & 0xfffb;
1147 snd_soc_write(codec, WM8753_CLOCK, clock);
1148
1149 return wm8753_vdac_adc_set_dai_fmt(codec, fmt);
1150 }
1151
1152 static int wm8753_mode1h_set_dai_fmt(struct snd_soc_codec *codec,
1153 unsigned int fmt)
1154 {
1155 return wm8753_hdac_set_dai_fmt(codec, fmt);
1156 }
1157
1158 static int wm8753_mode2_set_dai_fmt(struct snd_soc_codec *codec,
1159 unsigned int fmt)
1160 {
1161 u16 clock;
1162
1163 /* set clk source as pcmclk */
1164 clock = snd_soc_read(codec, WM8753_CLOCK) & 0xfffb;
1165 snd_soc_write(codec, WM8753_CLOCK, clock);
1166
1167 return wm8753_vdac_adc_set_dai_fmt(codec, fmt);
1168 }
1169
1170 static int wm8753_mode3_4_set_dai_fmt(struct snd_soc_codec *codec,
1171 unsigned int fmt)
1172 {
1173 u16 clock;
1174
1175 /* set clk source as mclk */
1176 clock = snd_soc_read(codec, WM8753_CLOCK) & 0xfffb;
1177 snd_soc_write(codec, WM8753_CLOCK, clock | 0x4);
1178
1179 if (wm8753_hdac_set_dai_fmt(codec, fmt) < 0)
1180 return -EINVAL;
1181 return wm8753_vdac_adc_set_dai_fmt(codec, fmt);
1182 }
1183
1184 static int wm8753_hifi_write_dai_fmt(struct snd_soc_codec *codec,
1185 unsigned int fmt)
1186 {
1187 struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);
1188 int ret = 0;
1189
1190 switch (wm8753->dai_func) {
1191 case 0:
1192 ret = wm8753_mode1h_set_dai_fmt(codec, fmt);
1193 break;
1194 case 1:
1195 ret = wm8753_mode2_set_dai_fmt(codec, fmt);
1196 break;
1197 case 2:
1198 case 3:
1199 ret = wm8753_mode3_4_set_dai_fmt(codec, fmt);
1200 break;
1201 default:
1202 break;
1203 }
1204 if (ret)
1205 return ret;
1206
1207 return wm8753_i2s_set_dai_fmt(codec, fmt);
1208 }
1209
1210 static int wm8753_hifi_set_dai_fmt(struct snd_soc_dai *codec_dai,
1211 unsigned int fmt)
1212 {
1213 struct snd_soc_codec *codec = codec_dai->codec;
1214 struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);
1215
1216 wm8753->hifi_fmt = fmt;
1217
1218 return wm8753_hifi_write_dai_fmt(codec, fmt);
1219 };
1220
1221 static int wm8753_voice_write_dai_fmt(struct snd_soc_codec *codec,
1222 unsigned int fmt)
1223 {
1224 struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);
1225 int ret = 0;
1226
1227 if (wm8753->dai_func != 0)
1228 return 0;
1229
1230 ret = wm8753_mode1v_set_dai_fmt(codec, fmt);
1231 if (ret)
1232 return ret;
1233 ret = wm8753_pcm_set_dai_fmt(codec, fmt);
1234 if (ret)
1235 return ret;
1236
1237 return 0;
1238 };
1239
1240 static int wm8753_voice_set_dai_fmt(struct snd_soc_dai *codec_dai,
1241 unsigned int fmt)
1242 {
1243 struct snd_soc_codec *codec = codec_dai->codec;
1244 struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);
1245
1246 wm8753->voice_fmt = fmt;
1247
1248 return wm8753_voice_write_dai_fmt(codec, fmt);
1249 };
1250
1251 static int wm8753_mute(struct snd_soc_dai *dai, int mute)
1252 {
1253 struct snd_soc_codec *codec = dai->codec;
1254 u16 mute_reg = snd_soc_read(codec, WM8753_DAC) & 0xfff7;
1255 struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);
1256
1257 /* the digital mute covers the HiFi and Voice DAC's on the WM8753.
1258 * make sure we check if they are not both active when we mute */
1259 if (mute && wm8753->dai_func == 1) {
1260 if (!codec->active)
1261 snd_soc_write(codec, WM8753_DAC, mute_reg | 0x8);
1262 } else {
1263 if (mute)
1264 snd_soc_write(codec, WM8753_DAC, mute_reg | 0x8);
1265 else
1266 snd_soc_write(codec, WM8753_DAC, mute_reg);
1267 }
1268
1269 return 0;
1270 }
1271
1272 static int wm8753_set_bias_level(struct snd_soc_codec *codec,
1273 enum snd_soc_bias_level level)
1274 {
1275 u16 pwr_reg = snd_soc_read(codec, WM8753_PWR1) & 0xfe3e;
1276
1277 switch (level) {
1278 case SND_SOC_BIAS_ON:
1279 /* set vmid to 50k and unmute dac */
1280 snd_soc_write(codec, WM8753_PWR1, pwr_reg | 0x00c0);
1281 break;
1282 case SND_SOC_BIAS_PREPARE:
1283 /* set vmid to 5k for quick power up */
1284 snd_soc_write(codec, WM8753_PWR1, pwr_reg | 0x01c1);
1285 break;
1286 case SND_SOC_BIAS_STANDBY:
1287 /* mute dac and set vmid to 500k, enable VREF */
1288 snd_soc_write(codec, WM8753_PWR1, pwr_reg | 0x0141);
1289 break;
1290 case SND_SOC_BIAS_OFF:
1291 snd_soc_write(codec, WM8753_PWR1, 0x0001);
1292 break;
1293 }
1294 codec->dapm.bias_level = level;
1295 return 0;
1296 }
1297
1298 #define WM8753_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\
1299 SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 |\
1300 SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 |\
1301 SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000)
1302
1303 #define WM8753_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
1304 SNDRV_PCM_FMTBIT_S24_LE)
1305
1306 /*
1307 * The WM8753 supports up to 4 different and mutually exclusive DAI
1308 * configurations. This gives 2 PCM's available for use, hifi and voice.
1309 * NOTE: The Voice PCM cannot play or capture audio to the CPU as it's DAI
1310 * is connected between the wm8753 and a BT codec or GSM modem.
1311 *
1312 * 1. Voice over PCM DAI - HIFI DAC over HIFI DAI
1313 * 2. Voice over HIFI DAI - HIFI disabled
1314 * 3. Voice disabled - HIFI over HIFI
1315 * 4. Voice disabled - HIFI over HIFI, uses voice DAI LRC for capture
1316 */
1317 static const struct snd_soc_dai_ops wm8753_dai_ops_hifi_mode = {
1318 .hw_params = wm8753_i2s_hw_params,
1319 .digital_mute = wm8753_mute,
1320 .set_fmt = wm8753_hifi_set_dai_fmt,
1321 .set_clkdiv = wm8753_set_dai_clkdiv,
1322 .set_pll = wm8753_set_dai_pll,
1323 .set_sysclk = wm8753_set_dai_sysclk,
1324 };
1325
1326 static const struct snd_soc_dai_ops wm8753_dai_ops_voice_mode = {
1327 .hw_params = wm8753_pcm_hw_params,
1328 .digital_mute = wm8753_mute,
1329 .set_fmt = wm8753_voice_set_dai_fmt,
1330 .set_clkdiv = wm8753_set_dai_clkdiv,
1331 .set_pll = wm8753_set_dai_pll,
1332 .set_sysclk = wm8753_set_dai_sysclk,
1333 };
1334
1335 static struct snd_soc_dai_driver wm8753_dai[] = {
1336 /* DAI HiFi mode 1 */
1337 { .name = "wm8753-hifi",
1338 .playback = {
1339 .stream_name = "HiFi Playback",
1340 .channels_min = 1,
1341 .channels_max = 2,
1342 .rates = WM8753_RATES,
1343 .formats = WM8753_FORMATS
1344 },
1345 .capture = { /* dummy for fast DAI switching */
1346 .stream_name = "Capture",
1347 .channels_min = 1,
1348 .channels_max = 2,
1349 .rates = WM8753_RATES,
1350 .formats = WM8753_FORMATS
1351 },
1352 .ops = &wm8753_dai_ops_hifi_mode,
1353 },
1354 /* DAI Voice mode 1 */
1355 { .name = "wm8753-voice",
1356 .playback = {
1357 .stream_name = "Voice Playback",
1358 .channels_min = 1,
1359 .channels_max = 1,
1360 .rates = WM8753_RATES,
1361 .formats = WM8753_FORMATS,
1362 },
1363 .capture = {
1364 .stream_name = "Capture",
1365 .channels_min = 1,
1366 .channels_max = 2,
1367 .rates = WM8753_RATES,
1368 .formats = WM8753_FORMATS,
1369 },
1370 .ops = &wm8753_dai_ops_voice_mode,
1371 },
1372 };
1373
1374 static void wm8753_work(struct work_struct *work)
1375 {
1376 struct snd_soc_dapm_context *dapm =
1377 container_of(work, struct snd_soc_dapm_context,
1378 delayed_work.work);
1379 struct snd_soc_codec *codec = dapm->codec;
1380 wm8753_set_bias_level(codec, dapm->bias_level);
1381 }
1382
1383 static int wm8753_suspend(struct snd_soc_codec *codec, pm_message_t state)
1384 {
1385 wm8753_set_bias_level(codec, SND_SOC_BIAS_OFF);
1386 return 0;
1387 }
1388
1389 static int wm8753_resume(struct snd_soc_codec *codec)
1390 {
1391 u16 *reg_cache = codec->reg_cache;
1392 int i;
1393
1394 /* Sync reg_cache with the hardware */
1395 for (i = 1; i < ARRAY_SIZE(wm8753_reg); i++) {
1396 if (i == WM8753_RESET)
1397 continue;
1398
1399 /* No point in writing hardware default values back */
1400 if (reg_cache[i] == wm8753_reg[i])
1401 continue;
1402
1403 snd_soc_write(codec, i, reg_cache[i]);
1404 }
1405
1406 wm8753_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
1407
1408 /* charge wm8753 caps */
1409 if (codec->dapm.suspend_bias_level == SND_SOC_BIAS_ON) {
1410 wm8753_set_bias_level(codec, SND_SOC_BIAS_PREPARE);
1411 codec->dapm.bias_level = SND_SOC_BIAS_ON;
1412 schedule_delayed_work(&codec->dapm.delayed_work,
1413 msecs_to_jiffies(caps_charge));
1414 }
1415
1416 return 0;
1417 }
1418
1419 static int wm8753_probe(struct snd_soc_codec *codec)
1420 {
1421 struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);
1422 int ret;
1423
1424 INIT_DELAYED_WORK(&codec->dapm.delayed_work, wm8753_work);
1425
1426 ret = snd_soc_codec_set_cache_io(codec, 7, 9, wm8753->control_type);
1427 if (ret < 0) {
1428 dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret);
1429 return ret;
1430 }
1431
1432 ret = wm8753_reset(codec);
1433 if (ret < 0) {
1434 dev_err(codec->dev, "Failed to issue reset: %d\n", ret);
1435 return ret;
1436 }
1437
1438 wm8753_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
1439 wm8753->dai_func = 0;
1440
1441 /* charge output caps */
1442 wm8753_set_bias_level(codec, SND_SOC_BIAS_PREPARE);
1443 schedule_delayed_work(&codec->dapm.delayed_work,
1444 msecs_to_jiffies(caps_charge));
1445
1446 /* set the update bits */
1447 snd_soc_update_bits(codec, WM8753_LDAC, 0x0100, 0x0100);
1448 snd_soc_update_bits(codec, WM8753_RDAC, 0x0100, 0x0100);
1449 snd_soc_update_bits(codec, WM8753_LADC, 0x0100, 0x0100);
1450 snd_soc_update_bits(codec, WM8753_RADC, 0x0100, 0x0100);
1451 snd_soc_update_bits(codec, WM8753_LOUT1V, 0x0100, 0x0100);
1452 snd_soc_update_bits(codec, WM8753_ROUT1V, 0x0100, 0x0100);
1453 snd_soc_update_bits(codec, WM8753_LOUT2V, 0x0100, 0x0100);
1454 snd_soc_update_bits(codec, WM8753_ROUT2V, 0x0100, 0x0100);
1455 snd_soc_update_bits(codec, WM8753_LINVOL, 0x0100, 0x0100);
1456 snd_soc_update_bits(codec, WM8753_RINVOL, 0x0100, 0x0100);
1457
1458 return 0;
1459 }
1460
1461 /* power down chip */
1462 static int wm8753_remove(struct snd_soc_codec *codec)
1463 {
1464 flush_delayed_work_sync(&codec->dapm.delayed_work);
1465 wm8753_set_bias_level(codec, SND_SOC_BIAS_OFF);
1466
1467 return 0;
1468 }
1469
1470 static struct snd_soc_codec_driver soc_codec_dev_wm8753 = {
1471 .probe = wm8753_probe,
1472 .remove = wm8753_remove,
1473 .suspend = wm8753_suspend,
1474 .resume = wm8753_resume,
1475 .set_bias_level = wm8753_set_bias_level,
1476 .reg_cache_size = ARRAY_SIZE(wm8753_reg),
1477 .reg_word_size = sizeof(u16),
1478 .reg_cache_default = wm8753_reg,
1479
1480 .controls = wm8753_snd_controls,
1481 .num_controls = ARRAY_SIZE(wm8753_snd_controls),
1482 .dapm_widgets = wm8753_dapm_widgets,
1483 .num_dapm_widgets = ARRAY_SIZE(wm8753_dapm_widgets),
1484 .dapm_routes = wm8753_dapm_routes,
1485 .num_dapm_routes = ARRAY_SIZE(wm8753_dapm_routes),
1486 };
1487
1488 static const struct of_device_id wm8753_of_match[] = {
1489 { .compatible = "wlf,wm8753", },
1490 { }
1491 };
1492 MODULE_DEVICE_TABLE(of, wm8753_of_match);
1493
1494 #if defined(CONFIG_SPI_MASTER)
1495 static int __devinit wm8753_spi_probe(struct spi_device *spi)
1496 {
1497 struct wm8753_priv *wm8753;
1498 int ret;
1499
1500 wm8753 = kzalloc(sizeof(struct wm8753_priv), GFP_KERNEL);
1501 if (wm8753 == NULL)
1502 return -ENOMEM;
1503
1504 wm8753->control_type = SND_SOC_SPI;
1505 spi_set_drvdata(spi, wm8753);
1506
1507 ret = snd_soc_register_codec(&spi->dev,
1508 &soc_codec_dev_wm8753, wm8753_dai, ARRAY_SIZE(wm8753_dai));
1509 if (ret < 0)
1510 kfree(wm8753);
1511 return ret;
1512 }
1513
1514 static int __devexit wm8753_spi_remove(struct spi_device *spi)
1515 {
1516 snd_soc_unregister_codec(&spi->dev);
1517 kfree(spi_get_drvdata(spi));
1518 return 0;
1519 }
1520
1521 static struct spi_driver wm8753_spi_driver = {
1522 .driver = {
1523 .name = "wm8753",
1524 .owner = THIS_MODULE,
1525 .of_match_table = wm8753_of_match,
1526 },
1527 .probe = wm8753_spi_probe,
1528 .remove = __devexit_p(wm8753_spi_remove),
1529 };
1530 #endif /* CONFIG_SPI_MASTER */
1531
1532 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
1533 static __devinit int wm8753_i2c_probe(struct i2c_client *i2c,
1534 const struct i2c_device_id *id)
1535 {
1536 struct wm8753_priv *wm8753;
1537 int ret;
1538
1539 wm8753 = kzalloc(sizeof(struct wm8753_priv), GFP_KERNEL);
1540 if (wm8753 == NULL)
1541 return -ENOMEM;
1542
1543 i2c_set_clientdata(i2c, wm8753);
1544 wm8753->control_type = SND_SOC_I2C;
1545
1546 ret = snd_soc_register_codec(&i2c->dev,
1547 &soc_codec_dev_wm8753, wm8753_dai, ARRAY_SIZE(wm8753_dai));
1548 if (ret < 0)
1549 kfree(wm8753);
1550 return ret;
1551 }
1552
1553 static __devexit int wm8753_i2c_remove(struct i2c_client *client)
1554 {
1555 snd_soc_unregister_codec(&client->dev);
1556 kfree(i2c_get_clientdata(client));
1557 return 0;
1558 }
1559
1560 static const struct i2c_device_id wm8753_i2c_id[] = {
1561 { "wm8753", 0 },
1562 { }
1563 };
1564 MODULE_DEVICE_TABLE(i2c, wm8753_i2c_id);
1565
1566 static struct i2c_driver wm8753_i2c_driver = {
1567 .driver = {
1568 .name = "wm8753",
1569 .owner = THIS_MODULE,
1570 .of_match_table = wm8753_of_match,
1571 },
1572 .probe = wm8753_i2c_probe,
1573 .remove = __devexit_p(wm8753_i2c_remove),
1574 .id_table = wm8753_i2c_id,
1575 };
1576 #endif
1577
1578 static int __init wm8753_modinit(void)
1579 {
1580 int ret = 0;
1581 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
1582 ret = i2c_add_driver(&wm8753_i2c_driver);
1583 if (ret != 0) {
1584 printk(KERN_ERR "Failed to register wm8753 I2C driver: %d\n",
1585 ret);
1586 }
1587 #endif
1588 #if defined(CONFIG_SPI_MASTER)
1589 ret = spi_register_driver(&wm8753_spi_driver);
1590 if (ret != 0) {
1591 printk(KERN_ERR "Failed to register wm8753 SPI driver: %d\n",
1592 ret);
1593 }
1594 #endif
1595 return ret;
1596 }
1597 module_init(wm8753_modinit);
1598
1599 static void __exit wm8753_exit(void)
1600 {
1601 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
1602 i2c_del_driver(&wm8753_i2c_driver);
1603 #endif
1604 #if defined(CONFIG_SPI_MASTER)
1605 spi_unregister_driver(&wm8753_spi_driver);
1606 #endif
1607 }
1608 module_exit(wm8753_exit);
1609
1610 MODULE_DESCRIPTION("ASoC WM8753 driver");
1611 MODULE_AUTHOR("Liam Girdwood");
1612 MODULE_LICENSE("GPL");
Linux kernel - Deliverables
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