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Merge git://git.samba.org/sfrench/cifs-2.6
[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 (codec->active)
194 return -EBUSY;
195
196 ioctl = snd_soc_read(codec, WM8753_IOCTL);
197
198 wm8753->dai_func = ucontrol->value.integer.value[0];
199
200 if (((ioctl >> 2) & 0x3) == wm8753->dai_func)
201 return 1;
202
203 ioctl = (ioctl & 0x1f3) | (wm8753->dai_func << 2);
204 snd_soc_write(codec, WM8753_IOCTL, ioctl);
205
206
207 wm8753_hifi_write_dai_fmt(codec, wm8753->hifi_fmt);
208 wm8753_voice_write_dai_fmt(codec, wm8753->voice_fmt);
209
210 return 1;
211 }
212
213 static const DECLARE_TLV_DB_SCALE(rec_mix_tlv, -1500, 300, 0);
214 static const DECLARE_TLV_DB_SCALE(mic_preamp_tlv, 1200, 600, 0);
215 static const DECLARE_TLV_DB_SCALE(adc_tlv, -9750, 50, 1);
216 static const DECLARE_TLV_DB_SCALE(dac_tlv, -12750, 50, 1);
217 static const unsigned int out_tlv[] = {
218 TLV_DB_RANGE_HEAD(2),
219 /* 0000000 - 0101111 = "Analogue mute" */
220 0, 48, TLV_DB_SCALE_ITEM(-25500, 0, 0),
221 48, 127, TLV_DB_SCALE_ITEM(-7300, 100, 0),
222 };
223 static const DECLARE_TLV_DB_SCALE(mix_tlv, -1500, 300, 0);
224 static const DECLARE_TLV_DB_SCALE(voice_mix_tlv, -1200, 300, 0);
225 static const DECLARE_TLV_DB_SCALE(pga_tlv, -1725, 75, 0);
226
227 static const struct snd_kcontrol_new wm8753_snd_controls[] = {
228 SOC_DOUBLE_R_TLV("PCM Volume", WM8753_LDAC, WM8753_RDAC, 0, 255, 0, dac_tlv),
229
230 SOC_DOUBLE_R_TLV("ADC Capture Volume", WM8753_LADC, WM8753_RADC, 0, 255, 0,
231 adc_tlv),
232
233 SOC_DOUBLE_R_TLV("Headphone Playback Volume", WM8753_LOUT1V, WM8753_ROUT1V,
234 0, 127, 0, out_tlv),
235 SOC_DOUBLE_R_TLV("Speaker Playback Volume", WM8753_LOUT2V, WM8753_ROUT2V, 0,
236 127, 0, out_tlv),
237
238 SOC_SINGLE_TLV("Mono Playback Volume", WM8753_MOUTV, 0, 127, 0, out_tlv),
239
240 SOC_DOUBLE_R_TLV("Bypass Playback Volume", WM8753_LOUTM1, WM8753_ROUTM1, 4, 7,
241 1, mix_tlv),
242 SOC_DOUBLE_R_TLV("Sidetone Playback Volume", WM8753_LOUTM2, WM8753_ROUTM2, 4,
243 7, 1, mix_tlv),
244 SOC_DOUBLE_R_TLV("Voice Playback Volume", WM8753_LOUTM2, WM8753_ROUTM2, 0, 7,
245 1, voice_mix_tlv),
246
247 SOC_DOUBLE_R("Headphone Playback ZC Switch", WM8753_LOUT1V, WM8753_ROUT1V, 7,
248 1, 0),
249 SOC_DOUBLE_R("Speaker Playback ZC Switch", WM8753_LOUT2V, WM8753_ROUT2V, 7,
250 1, 0),
251
252 SOC_SINGLE_TLV("Mono Bypass Playback Volume", WM8753_MOUTM1, 4, 7, 1, mix_tlv),
253 SOC_SINGLE_TLV("Mono Sidetone Playback Volume", WM8753_MOUTM2, 4, 7, 1,
254 mix_tlv),
255 SOC_SINGLE_TLV("Mono Voice Playback Volume", WM8753_MOUTM2, 0, 7, 1,
256 voice_mix_tlv),
257 SOC_SINGLE("Mono Playback ZC Switch", WM8753_MOUTV, 7, 1, 0),
258
259 SOC_ENUM("Bass Boost", wm8753_enum[0]),
260 SOC_ENUM("Bass Filter", wm8753_enum[1]),
261 SOC_SINGLE("Bass Volume", WM8753_BASS, 0, 15, 1),
262
263 SOC_SINGLE("Treble Volume", WM8753_TREBLE, 0, 15, 1),
264 SOC_ENUM("Treble Cut-off", wm8753_enum[2]),
265
266 SOC_DOUBLE_TLV("Sidetone Capture Volume", WM8753_RECMIX1, 0, 4, 7, 1,
267 rec_mix_tlv),
268 SOC_SINGLE_TLV("Voice Sidetone Capture Volume", WM8753_RECMIX2, 0, 7, 1,
269 rec_mix_tlv),
270
271 SOC_DOUBLE_R_TLV("Capture Volume", WM8753_LINVOL, WM8753_RINVOL, 0, 63, 0,
272 pga_tlv),
273 SOC_DOUBLE_R("Capture ZC Switch", WM8753_LINVOL, WM8753_RINVOL, 6, 1, 0),
274 SOC_DOUBLE_R("Capture Switch", WM8753_LINVOL, WM8753_RINVOL, 7, 1, 1),
275
276 SOC_ENUM("Capture Filter Select", wm8753_enum[23]),
277 SOC_ENUM("Capture Filter Cut-off", wm8753_enum[24]),
278 SOC_SINGLE("Capture Filter Switch", WM8753_ADC, 0, 1, 1),
279
280 SOC_SINGLE("ALC Capture Target Volume", WM8753_ALC1, 0, 7, 0),
281 SOC_SINGLE("ALC Capture Max Volume", WM8753_ALC1, 4, 7, 0),
282 SOC_ENUM("ALC Capture Function", wm8753_enum[3]),
283 SOC_SINGLE("ALC Capture ZC Switch", WM8753_ALC2, 8, 1, 0),
284 SOC_SINGLE("ALC Capture Hold Time", WM8753_ALC2, 0, 15, 1),
285 SOC_SINGLE("ALC Capture Decay Time", WM8753_ALC3, 4, 15, 1),
286 SOC_SINGLE("ALC Capture Attack Time", WM8753_ALC3, 0, 15, 0),
287 SOC_SINGLE("ALC Capture NG Threshold", WM8753_NGATE, 3, 31, 0),
288 SOC_ENUM("ALC Capture NG Type", wm8753_enum[4]),
289 SOC_SINGLE("ALC Capture NG Switch", WM8753_NGATE, 0, 1, 0),
290
291 SOC_ENUM("3D Function", wm8753_enum[5]),
292 SOC_ENUM("3D Upper Cut-off", wm8753_enum[6]),
293 SOC_ENUM("3D Lower Cut-off", wm8753_enum[7]),
294 SOC_SINGLE("3D Volume", WM8753_3D, 1, 15, 0),
295 SOC_SINGLE("3D Switch", WM8753_3D, 0, 1, 0),
296
297 SOC_SINGLE("Capture 6dB Attenuate", WM8753_ADCTL1, 2, 1, 0),
298 SOC_SINGLE("Playback 6dB Attenuate", WM8753_ADCTL1, 1, 1, 0),
299
300 SOC_ENUM("De-emphasis", wm8753_enum[8]),
301 SOC_ENUM("Playback Mono Mix", wm8753_enum[9]),
302 SOC_ENUM("Playback Phase", wm8753_enum[10]),
303
304 SOC_SINGLE_TLV("Mic2 Capture Volume", WM8753_INCTL1, 7, 3, 0, mic_preamp_tlv),
305 SOC_SINGLE_TLV("Mic1 Capture Volume", WM8753_INCTL1, 5, 3, 0, mic_preamp_tlv),
306
307 SOC_ENUM_EXT("DAI Mode", wm8753_enum[26], wm8753_get_dai, wm8753_set_dai),
308
309 SOC_ENUM("ADC Data Select", wm8753_enum[27]),
310 SOC_ENUM("ROUT2 Phase", wm8753_enum[28]),
311 };
312
313 /*
314 * _DAPM_ Controls
315 */
316
317 /* Left Mixer */
318 static const struct snd_kcontrol_new wm8753_left_mixer_controls[] = {
319 SOC_DAPM_SINGLE("Voice Playback Switch", WM8753_LOUTM2, 8, 1, 0),
320 SOC_DAPM_SINGLE("Sidetone Playback Switch", WM8753_LOUTM2, 7, 1, 0),
321 SOC_DAPM_SINGLE("Left Playback Switch", WM8753_LOUTM1, 8, 1, 0),
322 SOC_DAPM_SINGLE("Bypass Playback Switch", WM8753_LOUTM1, 7, 1, 0),
323 };
324
325 /* Right mixer */
326 static const struct snd_kcontrol_new wm8753_right_mixer_controls[] = {
327 SOC_DAPM_SINGLE("Voice Playback Switch", WM8753_ROUTM2, 8, 1, 0),
328 SOC_DAPM_SINGLE("Sidetone Playback Switch", WM8753_ROUTM2, 7, 1, 0),
329 SOC_DAPM_SINGLE("Right Playback Switch", WM8753_ROUTM1, 8, 1, 0),
330 SOC_DAPM_SINGLE("Bypass Playback Switch", WM8753_ROUTM1, 7, 1, 0),
331 };
332
333 /* Mono mixer */
334 static const struct snd_kcontrol_new wm8753_mono_mixer_controls[] = {
335 SOC_DAPM_SINGLE("Left Playback Switch", WM8753_MOUTM1, 8, 1, 0),
336 SOC_DAPM_SINGLE("Right Playback Switch", WM8753_MOUTM2, 8, 1, 0),
337 SOC_DAPM_SINGLE("Voice Playback Switch", WM8753_MOUTM2, 3, 1, 0),
338 SOC_DAPM_SINGLE("Sidetone Playback Switch", WM8753_MOUTM2, 7, 1, 0),
339 SOC_DAPM_SINGLE("Bypass Playback Switch", WM8753_MOUTM1, 7, 1, 0),
340 };
341
342 /* Mono 2 Mux */
343 static const struct snd_kcontrol_new wm8753_mono2_controls =
344 SOC_DAPM_ENUM("Route", wm8753_enum[17]);
345
346 /* Out 3 Mux */
347 static const struct snd_kcontrol_new wm8753_out3_controls =
348 SOC_DAPM_ENUM("Route", wm8753_enum[18]);
349
350 /* Out 4 Mux */
351 static const struct snd_kcontrol_new wm8753_out4_controls =
352 SOC_DAPM_ENUM("Route", wm8753_enum[19]);
353
354 /* ADC Mono Mix */
355 static const struct snd_kcontrol_new wm8753_adc_mono_controls =
356 SOC_DAPM_ENUM("Route", wm8753_enum[22]);
357
358 /* Record mixer */
359 static const struct snd_kcontrol_new wm8753_record_mixer_controls[] = {
360 SOC_DAPM_SINGLE("Voice Capture Switch", WM8753_RECMIX2, 3, 1, 0),
361 SOC_DAPM_SINGLE("Left Capture Switch", WM8753_RECMIX1, 3, 1, 0),
362 SOC_DAPM_SINGLE("Right Capture Switch", WM8753_RECMIX1, 7, 1, 0),
363 };
364
365 /* Left ADC mux */
366 static const struct snd_kcontrol_new wm8753_adc_left_controls =
367 SOC_DAPM_ENUM("Route", wm8753_enum[21]);
368
369 /* Right ADC mux */
370 static const struct snd_kcontrol_new wm8753_adc_right_controls =
371 SOC_DAPM_ENUM("Route", wm8753_enum[20]);
372
373 /* MIC mux */
374 static const struct snd_kcontrol_new wm8753_mic_mux_controls =
375 SOC_DAPM_ENUM("Route", wm8753_enum[16]);
376
377 /* ALC mixer */
378 static const struct snd_kcontrol_new wm8753_alc_mixer_controls[] = {
379 SOC_DAPM_SINGLE("Line Capture Switch", WM8753_INCTL2, 3, 1, 0),
380 SOC_DAPM_SINGLE("Mic2 Capture Switch", WM8753_INCTL2, 2, 1, 0),
381 SOC_DAPM_SINGLE("Mic1 Capture Switch", WM8753_INCTL2, 1, 1, 0),
382 SOC_DAPM_SINGLE("Rx Capture Switch", WM8753_INCTL2, 0, 1, 0),
383 };
384
385 /* Left Line mux */
386 static const struct snd_kcontrol_new wm8753_line_left_controls =
387 SOC_DAPM_ENUM("Route", wm8753_enum[14]);
388
389 /* Right Line mux */
390 static const struct snd_kcontrol_new wm8753_line_right_controls =
391 SOC_DAPM_ENUM("Route", wm8753_enum[13]);
392
393 /* Mono Line mux */
394 static const struct snd_kcontrol_new wm8753_line_mono_controls =
395 SOC_DAPM_ENUM("Route", wm8753_enum[12]);
396
397 /* Line mux and mixer */
398 static const struct snd_kcontrol_new wm8753_line_mux_mix_controls =
399 SOC_DAPM_ENUM("Route", wm8753_enum[11]);
400
401 /* Rx mux and mixer */
402 static const struct snd_kcontrol_new wm8753_rx_mux_mix_controls =
403 SOC_DAPM_ENUM("Route", wm8753_enum[15]);
404
405 /* Mic Selector Mux */
406 static const struct snd_kcontrol_new wm8753_mic_sel_mux_controls =
407 SOC_DAPM_ENUM("Route", wm8753_enum[25]);
408
409 static const struct snd_soc_dapm_widget wm8753_dapm_widgets[] = {
410 SND_SOC_DAPM_MICBIAS("Mic Bias", WM8753_PWR1, 5, 0),
411 SND_SOC_DAPM_MIXER("Left Mixer", WM8753_PWR4, 0, 0,
412 &wm8753_left_mixer_controls[0], ARRAY_SIZE(wm8753_left_mixer_controls)),
413 SND_SOC_DAPM_PGA("Left Out 1", WM8753_PWR3, 8, 0, NULL, 0),
414 SND_SOC_DAPM_PGA("Left Out 2", WM8753_PWR3, 6, 0, NULL, 0),
415 SND_SOC_DAPM_DAC("Left DAC", "Left HiFi Playback", WM8753_PWR1, 3, 0),
416 SND_SOC_DAPM_OUTPUT("LOUT1"),
417 SND_SOC_DAPM_OUTPUT("LOUT2"),
418 SND_SOC_DAPM_MIXER("Right Mixer", WM8753_PWR4, 1, 0,
419 &wm8753_right_mixer_controls[0], ARRAY_SIZE(wm8753_right_mixer_controls)),
420 SND_SOC_DAPM_PGA("Right Out 1", WM8753_PWR3, 7, 0, NULL, 0),
421 SND_SOC_DAPM_PGA("Right Out 2", WM8753_PWR3, 5, 0, NULL, 0),
422 SND_SOC_DAPM_DAC("Right DAC", "Right HiFi Playback", WM8753_PWR1, 2, 0),
423 SND_SOC_DAPM_OUTPUT("ROUT1"),
424 SND_SOC_DAPM_OUTPUT("ROUT2"),
425 SND_SOC_DAPM_MIXER("Mono Mixer", WM8753_PWR4, 2, 0,
426 &wm8753_mono_mixer_controls[0], ARRAY_SIZE(wm8753_mono_mixer_controls)),
427 SND_SOC_DAPM_PGA("Mono Out 1", WM8753_PWR3, 2, 0, NULL, 0),
428 SND_SOC_DAPM_PGA("Mono Out 2", WM8753_PWR3, 1, 0, NULL, 0),
429 SND_SOC_DAPM_DAC("Voice DAC", "Voice Playback", WM8753_PWR1, 4, 0),
430 SND_SOC_DAPM_OUTPUT("MONO1"),
431 SND_SOC_DAPM_MUX("Mono 2 Mux", SND_SOC_NOPM, 0, 0, &wm8753_mono2_controls),
432 SND_SOC_DAPM_OUTPUT("MONO2"),
433 SND_SOC_DAPM_MIXER("Out3 Left + Right", -1, 0, 0, NULL, 0),
434 SND_SOC_DAPM_MUX("Out3 Mux", SND_SOC_NOPM, 0, 0, &wm8753_out3_controls),
435 SND_SOC_DAPM_PGA("Out 3", WM8753_PWR3, 4, 0, NULL, 0),
436 SND_SOC_DAPM_OUTPUT("OUT3"),
437 SND_SOC_DAPM_MUX("Out4 Mux", SND_SOC_NOPM, 0, 0, &wm8753_out4_controls),
438 SND_SOC_DAPM_PGA("Out 4", WM8753_PWR3, 3, 0, NULL, 0),
439 SND_SOC_DAPM_OUTPUT("OUT4"),
440 SND_SOC_DAPM_MIXER("Playback Mixer", WM8753_PWR4, 3, 0,
441 &wm8753_record_mixer_controls[0],
442 ARRAY_SIZE(wm8753_record_mixer_controls)),
443 SND_SOC_DAPM_ADC("Left ADC", "Left Capture", WM8753_PWR2, 3, 0),
444 SND_SOC_DAPM_ADC("Right ADC", "Right Capture", WM8753_PWR2, 2, 0),
445 SND_SOC_DAPM_MUX("Capture Left Mixer", SND_SOC_NOPM, 0, 0,
446 &wm8753_adc_mono_controls),
447 SND_SOC_DAPM_MUX("Capture Right Mixer", SND_SOC_NOPM, 0, 0,
448 &wm8753_adc_mono_controls),
449 SND_SOC_DAPM_MUX("Capture Left Mux", SND_SOC_NOPM, 0, 0,
450 &wm8753_adc_left_controls),
451 SND_SOC_DAPM_MUX("Capture Right Mux", SND_SOC_NOPM, 0, 0,
452 &wm8753_adc_right_controls),
453 SND_SOC_DAPM_MUX("Mic Sidetone Mux", SND_SOC_NOPM, 0, 0,
454 &wm8753_mic_mux_controls),
455 SND_SOC_DAPM_PGA("Left Capture Volume", WM8753_PWR2, 5, 0, NULL, 0),
456 SND_SOC_DAPM_PGA("Right Capture Volume", WM8753_PWR2, 4, 0, NULL, 0),
457 SND_SOC_DAPM_MIXER("ALC Mixer", WM8753_PWR2, 6, 0,
458 &wm8753_alc_mixer_controls[0], ARRAY_SIZE(wm8753_alc_mixer_controls)),
459 SND_SOC_DAPM_MUX("Line Left Mux", SND_SOC_NOPM, 0, 0,
460 &wm8753_line_left_controls),
461 SND_SOC_DAPM_MUX("Line Right Mux", SND_SOC_NOPM, 0, 0,
462 &wm8753_line_right_controls),
463 SND_SOC_DAPM_MUX("Line Mono Mux", SND_SOC_NOPM, 0, 0,
464 &wm8753_line_mono_controls),
465 SND_SOC_DAPM_MUX("Line Mixer", WM8753_PWR2, 0, 0,
466 &wm8753_line_mux_mix_controls),
467 SND_SOC_DAPM_MUX("Rx Mixer", WM8753_PWR2, 1, 0,
468 &wm8753_rx_mux_mix_controls),
469 SND_SOC_DAPM_PGA("Mic 1 Volume", WM8753_PWR2, 8, 0, NULL, 0),
470 SND_SOC_DAPM_PGA("Mic 2 Volume", WM8753_PWR2, 7, 0, NULL, 0),
471 SND_SOC_DAPM_MUX("Mic Selection Mux", SND_SOC_NOPM, 0, 0,
472 &wm8753_mic_sel_mux_controls),
473 SND_SOC_DAPM_INPUT("LINE1"),
474 SND_SOC_DAPM_INPUT("LINE2"),
475 SND_SOC_DAPM_INPUT("RXP"),
476 SND_SOC_DAPM_INPUT("RXN"),
477 SND_SOC_DAPM_INPUT("ACIN"),
478 SND_SOC_DAPM_OUTPUT("ACOP"),
479 SND_SOC_DAPM_INPUT("MIC1N"),
480 SND_SOC_DAPM_INPUT("MIC1"),
481 SND_SOC_DAPM_INPUT("MIC2N"),
482 SND_SOC_DAPM_INPUT("MIC2"),
483 SND_SOC_DAPM_VMID("VREF"),
484 };
485
486 static const struct snd_soc_dapm_route audio_map[] = {
487 /* left mixer */
488 {"Left Mixer", "Left Playback Switch", "Left DAC"},
489 {"Left Mixer", "Voice Playback Switch", "Voice DAC"},
490 {"Left Mixer", "Sidetone Playback Switch", "Mic Sidetone Mux"},
491 {"Left Mixer", "Bypass Playback Switch", "Line Left Mux"},
492
493 /* right mixer */
494 {"Right Mixer", "Right Playback Switch", "Right DAC"},
495 {"Right Mixer", "Voice Playback Switch", "Voice DAC"},
496 {"Right Mixer", "Sidetone Playback Switch", "Mic Sidetone Mux"},
497 {"Right Mixer", "Bypass Playback Switch", "Line Right Mux"},
498
499 /* mono mixer */
500 {"Mono Mixer", "Voice Playback Switch", "Voice DAC"},
501 {"Mono Mixer", "Left Playback Switch", "Left DAC"},
502 {"Mono Mixer", "Right Playback Switch", "Right DAC"},
503 {"Mono Mixer", "Sidetone Playback Switch", "Mic Sidetone Mux"},
504 {"Mono Mixer", "Bypass Playback Switch", "Line Mono Mux"},
505
506 /* left out */
507 {"Left Out 1", NULL, "Left Mixer"},
508 {"Left Out 2", NULL, "Left Mixer"},
509 {"LOUT1", NULL, "Left Out 1"},
510 {"LOUT2", NULL, "Left Out 2"},
511
512 /* right out */
513 {"Right Out 1", NULL, "Right Mixer"},
514 {"Right Out 2", NULL, "Right Mixer"},
515 {"ROUT1", NULL, "Right Out 1"},
516 {"ROUT2", NULL, "Right Out 2"},
517
518 /* mono 1 out */
519 {"Mono Out 1", NULL, "Mono Mixer"},
520 {"MONO1", NULL, "Mono Out 1"},
521
522 /* mono 2 out */
523 {"Mono 2 Mux", "Left + Right", "Out3 Left + Right"},
524 {"Mono 2 Mux", "Inverted Mono 1", "MONO1"},
525 {"Mono 2 Mux", "Left", "Left Mixer"},
526 {"Mono 2 Mux", "Right", "Right Mixer"},
527 {"Mono Out 2", NULL, "Mono 2 Mux"},
528 {"MONO2", NULL, "Mono Out 2"},
529
530 /* out 3 */
531 {"Out3 Left + Right", NULL, "Left Mixer"},
532 {"Out3 Left + Right", NULL, "Right Mixer"},
533 {"Out3 Mux", "VREF", "VREF"},
534 {"Out3 Mux", "Left + Right", "Out3 Left + Right"},
535 {"Out3 Mux", "ROUT2", "ROUT2"},
536 {"Out 3", NULL, "Out3 Mux"},
537 {"OUT3", NULL, "Out 3"},
538
539 /* out 4 */
540 {"Out4 Mux", "VREF", "VREF"},
541 {"Out4 Mux", "Capture ST", "Playback Mixer"},
542 {"Out4 Mux", "LOUT2", "LOUT2"},
543 {"Out 4", NULL, "Out4 Mux"},
544 {"OUT4", NULL, "Out 4"},
545
546 /* record mixer */
547 {"Playback Mixer", "Left Capture Switch", "Left Mixer"},
548 {"Playback Mixer", "Voice Capture Switch", "Mono Mixer"},
549 {"Playback Mixer", "Right Capture Switch", "Right Mixer"},
550
551 /* Mic/SideTone Mux */
552 {"Mic Sidetone Mux", "Left PGA", "Left Capture Volume"},
553 {"Mic Sidetone Mux", "Right PGA", "Right Capture Volume"},
554 {"Mic Sidetone Mux", "Mic 1", "Mic 1 Volume"},
555 {"Mic Sidetone Mux", "Mic 2", "Mic 2 Volume"},
556
557 /* Capture Left Mux */
558 {"Capture Left Mux", "PGA", "Left Capture Volume"},
559 {"Capture Left Mux", "Line or RXP-RXN", "Line Left Mux"},
560 {"Capture Left Mux", "Line", "LINE1"},
561
562 /* Capture Right Mux */
563 {"Capture Right Mux", "PGA", "Right Capture Volume"},
564 {"Capture Right Mux", "Line or RXP-RXN", "Line Right Mux"},
565 {"Capture Right Mux", "Sidetone", "Playback Mixer"},
566
567 /* Mono Capture mixer-mux */
568 {"Capture Right Mixer", "Stereo", "Capture Right Mux"},
569 {"Capture Left Mixer", "Stereo", "Capture Left Mux"},
570 {"Capture Left Mixer", "Analogue Mix Left", "Capture Left Mux"},
571 {"Capture Left Mixer", "Analogue Mix Left", "Capture Right Mux"},
572 {"Capture Right Mixer", "Analogue Mix Right", "Capture Left Mux"},
573 {"Capture Right Mixer", "Analogue Mix Right", "Capture Right Mux"},
574 {"Capture Left Mixer", "Digital Mono Mix", "Capture Left Mux"},
575 {"Capture Left Mixer", "Digital Mono Mix", "Capture Right Mux"},
576 {"Capture Right Mixer", "Digital Mono Mix", "Capture Left Mux"},
577 {"Capture Right Mixer", "Digital Mono Mix", "Capture Right Mux"},
578
579 /* ADC */
580 {"Left ADC", NULL, "Capture Left Mixer"},
581 {"Right ADC", NULL, "Capture Right Mixer"},
582
583 /* Left Capture Volume */
584 {"Left Capture Volume", NULL, "ACIN"},
585
586 /* Right Capture Volume */
587 {"Right Capture Volume", NULL, "Mic 2 Volume"},
588
589 /* ALC Mixer */
590 {"ALC Mixer", "Line Capture Switch", "Line Mixer"},
591 {"ALC Mixer", "Mic2 Capture Switch", "Mic 2 Volume"},
592 {"ALC Mixer", "Mic1 Capture Switch", "Mic 1 Volume"},
593 {"ALC Mixer", "Rx Capture Switch", "Rx Mixer"},
594
595 /* Line Left Mux */
596 {"Line Left Mux", "Line 1", "LINE1"},
597 {"Line Left Mux", "Rx Mix", "Rx Mixer"},
598
599 /* Line Right Mux */
600 {"Line Right Mux", "Line 2", "LINE2"},
601 {"Line Right Mux", "Rx Mix", "Rx Mixer"},
602
603 /* Line Mono Mux */
604 {"Line Mono Mux", "Line Mix", "Line Mixer"},
605 {"Line Mono Mux", "Rx Mix", "Rx Mixer"},
606
607 /* Line Mixer/Mux */
608 {"Line Mixer", "Line 1 + 2", "LINE1"},
609 {"Line Mixer", "Line 1 - 2", "LINE1"},
610 {"Line Mixer", "Line 1 + 2", "LINE2"},
611 {"Line Mixer", "Line 1 - 2", "LINE2"},
612 {"Line Mixer", "Line 1", "LINE1"},
613 {"Line Mixer", "Line 2", "LINE2"},
614
615 /* Rx Mixer/Mux */
616 {"Rx Mixer", "RXP - RXN", "RXP"},
617 {"Rx Mixer", "RXP + RXN", "RXP"},
618 {"Rx Mixer", "RXP - RXN", "RXN"},
619 {"Rx Mixer", "RXP + RXN", "RXN"},
620 {"Rx Mixer", "RXP", "RXP"},
621 {"Rx Mixer", "RXN", "RXN"},
622
623 /* Mic 1 Volume */
624 {"Mic 1 Volume", NULL, "MIC1N"},
625 {"Mic 1 Volume", NULL, "Mic Selection Mux"},
626
627 /* Mic 2 Volume */
628 {"Mic 2 Volume", NULL, "MIC2N"},
629 {"Mic 2 Volume", NULL, "MIC2"},
630
631 /* Mic Selector Mux */
632 {"Mic Selection Mux", "Mic 1", "MIC1"},
633 {"Mic Selection Mux", "Mic 2", "MIC2N"},
634 {"Mic Selection Mux", "Mic 3", "MIC2"},
635
636 /* ACOP */
637 {"ACOP", NULL, "ALC Mixer"},
638 };
639
640 static int wm8753_add_widgets(struct snd_soc_codec *codec)
641 {
642 struct snd_soc_dapm_context *dapm = &codec->dapm;
643
644 snd_soc_dapm_new_controls(dapm, wm8753_dapm_widgets,
645 ARRAY_SIZE(wm8753_dapm_widgets));
646 snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map));
647
648 return 0;
649 }
650
651 /* PLL divisors */
652 struct _pll_div {
653 u32 div2:1;
654 u32 n:4;
655 u32 k:24;
656 };
657
658 /* The size in bits of the pll divide multiplied by 10
659 * to allow rounding later */
660 #define FIXED_PLL_SIZE ((1 << 22) * 10)
661
662 static void pll_factors(struct _pll_div *pll_div, unsigned int target,
663 unsigned int source)
664 {
665 u64 Kpart;
666 unsigned int K, Ndiv, Nmod;
667
668 Ndiv = target / source;
669 if (Ndiv < 6) {
670 source >>= 1;
671 pll_div->div2 = 1;
672 Ndiv = target / source;
673 } else
674 pll_div->div2 = 0;
675
676 if ((Ndiv < 6) || (Ndiv > 12))
677 printk(KERN_WARNING
678 "wm8753: unsupported N = %u\n", Ndiv);
679
680 pll_div->n = Ndiv;
681 Nmod = target % source;
682 Kpart = FIXED_PLL_SIZE * (long long)Nmod;
683
684 do_div(Kpart, source);
685
686 K = Kpart & 0xFFFFFFFF;
687
688 /* Check if we need to round */
689 if ((K % 10) >= 5)
690 K += 5;
691
692 /* Move down to proper range now rounding is done */
693 K /= 10;
694
695 pll_div->k = K;
696 }
697
698 static int wm8753_set_dai_pll(struct snd_soc_dai *codec_dai, int pll_id,
699 int source, unsigned int freq_in, unsigned int freq_out)
700 {
701 u16 reg, enable;
702 int offset;
703 struct snd_soc_codec *codec = codec_dai->codec;
704
705 if (pll_id < WM8753_PLL1 || pll_id > WM8753_PLL2)
706 return -ENODEV;
707
708 if (pll_id == WM8753_PLL1) {
709 offset = 0;
710 enable = 0x10;
711 reg = snd_soc_read(codec, WM8753_CLOCK) & 0xffef;
712 } else {
713 offset = 4;
714 enable = 0x8;
715 reg = snd_soc_read(codec, WM8753_CLOCK) & 0xfff7;
716 }
717
718 if (!freq_in || !freq_out) {
719 /* disable PLL */
720 snd_soc_write(codec, WM8753_PLL1CTL1 + offset, 0x0026);
721 snd_soc_write(codec, WM8753_CLOCK, reg);
722 return 0;
723 } else {
724 u16 value = 0;
725 struct _pll_div pll_div;
726
727 pll_factors(&pll_div, freq_out * 8, freq_in);
728
729 /* set up N and K PLL divisor ratios */
730 /* bits 8:5 = PLL_N, bits 3:0 = PLL_K[21:18] */
731 value = (pll_div.n << 5) + ((pll_div.k & 0x3c0000) >> 18);
732 snd_soc_write(codec, WM8753_PLL1CTL2 + offset, value);
733
734 /* bits 8:0 = PLL_K[17:9] */
735 value = (pll_div.k & 0x03fe00) >> 9;
736 snd_soc_write(codec, WM8753_PLL1CTL3 + offset, value);
737
738 /* bits 8:0 = PLL_K[8:0] */
739 value = pll_div.k & 0x0001ff;
740 snd_soc_write(codec, WM8753_PLL1CTL4 + offset, value);
741
742 /* set PLL as input and enable */
743 snd_soc_write(codec, WM8753_PLL1CTL1 + offset, 0x0027 |
744 (pll_div.div2 << 3));
745 snd_soc_write(codec, WM8753_CLOCK, reg | enable);
746 }
747 return 0;
748 }
749
750 struct _coeff_div {
751 u32 mclk;
752 u32 rate;
753 u8 sr:5;
754 u8 usb:1;
755 };
756
757 /* codec hifi mclk (after PLL) clock divider coefficients */
758 static const struct _coeff_div coeff_div[] = {
759 /* 8k */
760 {12288000, 8000, 0x6, 0x0},
761 {11289600, 8000, 0x16, 0x0},
762 {18432000, 8000, 0x7, 0x0},
763 {16934400, 8000, 0x17, 0x0},
764 {12000000, 8000, 0x6, 0x1},
765
766 /* 11.025k */
767 {11289600, 11025, 0x18, 0x0},
768 {16934400, 11025, 0x19, 0x0},
769 {12000000, 11025, 0x19, 0x1},
770
771 /* 16k */
772 {12288000, 16000, 0xa, 0x0},
773 {18432000, 16000, 0xb, 0x0},
774 {12000000, 16000, 0xa, 0x1},
775
776 /* 22.05k */
777 {11289600, 22050, 0x1a, 0x0},
778 {16934400, 22050, 0x1b, 0x0},
779 {12000000, 22050, 0x1b, 0x1},
780
781 /* 32k */
782 {12288000, 32000, 0xc, 0x0},
783 {18432000, 32000, 0xd, 0x0},
784 {12000000, 32000, 0xa, 0x1},
785
786 /* 44.1k */
787 {11289600, 44100, 0x10, 0x0},
788 {16934400, 44100, 0x11, 0x0},
789 {12000000, 44100, 0x11, 0x1},
790
791 /* 48k */
792 {12288000, 48000, 0x0, 0x0},
793 {18432000, 48000, 0x1, 0x0},
794 {12000000, 48000, 0x0, 0x1},
795
796 /* 88.2k */
797 {11289600, 88200, 0x1e, 0x0},
798 {16934400, 88200, 0x1f, 0x0},
799 {12000000, 88200, 0x1f, 0x1},
800
801 /* 96k */
802 {12288000, 96000, 0xe, 0x0},
803 {18432000, 96000, 0xf, 0x0},
804 {12000000, 96000, 0xe, 0x1},
805 };
806
807 static int get_coeff(int mclk, int rate)
808 {
809 int i;
810
811 for (i = 0; i < ARRAY_SIZE(coeff_div); i++) {
812 if (coeff_div[i].rate == rate && coeff_div[i].mclk == mclk)
813 return i;
814 }
815 return -EINVAL;
816 }
817
818 /*
819 * Clock after PLL and dividers
820 */
821 static int wm8753_set_dai_sysclk(struct snd_soc_dai *codec_dai,
822 int clk_id, unsigned int freq, int dir)
823 {
824 struct snd_soc_codec *codec = codec_dai->codec;
825 struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);
826
827 switch (freq) {
828 case 11289600:
829 case 12000000:
830 case 12288000:
831 case 16934400:
832 case 18432000:
833 if (clk_id == WM8753_MCLK) {
834 wm8753->sysclk = freq;
835 return 0;
836 } else if (clk_id == WM8753_PCMCLK) {
837 wm8753->pcmclk = freq;
838 return 0;
839 }
840 break;
841 }
842 return -EINVAL;
843 }
844
845 /*
846 * Set's ADC and Voice DAC format.
847 */
848 static int wm8753_vdac_adc_set_dai_fmt(struct snd_soc_codec *codec,
849 unsigned int fmt)
850 {
851 u16 voice = snd_soc_read(codec, WM8753_PCM) & 0x01ec;
852
853 /* interface format */
854 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
855 case SND_SOC_DAIFMT_I2S:
856 voice |= 0x0002;
857 break;
858 case SND_SOC_DAIFMT_RIGHT_J:
859 break;
860 case SND_SOC_DAIFMT_LEFT_J:
861 voice |= 0x0001;
862 break;
863 case SND_SOC_DAIFMT_DSP_A:
864 voice |= 0x0003;
865 break;
866 case SND_SOC_DAIFMT_DSP_B:
867 voice |= 0x0013;
868 break;
869 default:
870 return -EINVAL;
871 }
872
873 snd_soc_write(codec, WM8753_PCM, voice);
874 return 0;
875 }
876
877 /*
878 * Set PCM DAI bit size and sample rate.
879 */
880 static int wm8753_pcm_hw_params(struct snd_pcm_substream *substream,
881 struct snd_pcm_hw_params *params,
882 struct snd_soc_dai *dai)
883 {
884 struct snd_soc_pcm_runtime *rtd = substream->private_data;
885 struct snd_soc_codec *codec = rtd->codec;
886 struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);
887 u16 voice = snd_soc_read(codec, WM8753_PCM) & 0x01f3;
888 u16 srate = snd_soc_read(codec, WM8753_SRATE1) & 0x017f;
889
890 /* bit size */
891 switch (params_format(params)) {
892 case SNDRV_PCM_FORMAT_S16_LE:
893 break;
894 case SNDRV_PCM_FORMAT_S20_3LE:
895 voice |= 0x0004;
896 break;
897 case SNDRV_PCM_FORMAT_S24_LE:
898 voice |= 0x0008;
899 break;
900 case SNDRV_PCM_FORMAT_S32_LE:
901 voice |= 0x000c;
902 break;
903 }
904
905 /* sample rate */
906 if (params_rate(params) * 384 == wm8753->pcmclk)
907 srate |= 0x80;
908 snd_soc_write(codec, WM8753_SRATE1, srate);
909
910 snd_soc_write(codec, WM8753_PCM, voice);
911 return 0;
912 }
913
914 /*
915 * Set's PCM dai fmt and BCLK.
916 */
917 static int wm8753_pcm_set_dai_fmt(struct snd_soc_codec *codec,
918 unsigned int fmt)
919 {
920 u16 voice, ioctl;
921
922 voice = snd_soc_read(codec, WM8753_PCM) & 0x011f;
923 ioctl = snd_soc_read(codec, WM8753_IOCTL) & 0x015d;
924
925 /* set master/slave audio interface */
926 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
927 case SND_SOC_DAIFMT_CBS_CFS:
928 break;
929 case SND_SOC_DAIFMT_CBM_CFM:
930 ioctl |= 0x2;
931 case SND_SOC_DAIFMT_CBM_CFS:
932 voice |= 0x0040;
933 break;
934 default:
935 return -EINVAL;
936 }
937
938 /* clock inversion */
939 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
940 case SND_SOC_DAIFMT_DSP_A:
941 case SND_SOC_DAIFMT_DSP_B:
942 /* frame inversion not valid for DSP modes */
943 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
944 case SND_SOC_DAIFMT_NB_NF:
945 break;
946 case SND_SOC_DAIFMT_IB_NF:
947 voice |= 0x0080;
948 break;
949 default:
950 return -EINVAL;
951 }
952 break;
953 case SND_SOC_DAIFMT_I2S:
954 case SND_SOC_DAIFMT_RIGHT_J:
955 case SND_SOC_DAIFMT_LEFT_J:
956 voice &= ~0x0010;
957 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
958 case SND_SOC_DAIFMT_NB_NF:
959 break;
960 case SND_SOC_DAIFMT_IB_IF:
961 voice |= 0x0090;
962 break;
963 case SND_SOC_DAIFMT_IB_NF:
964 voice |= 0x0080;
965 break;
966 case SND_SOC_DAIFMT_NB_IF:
967 voice |= 0x0010;
968 break;
969 default:
970 return -EINVAL;
971 }
972 break;
973 default:
974 return -EINVAL;
975 }
976
977 snd_soc_write(codec, WM8753_PCM, voice);
978 snd_soc_write(codec, WM8753_IOCTL, ioctl);
979 return 0;
980 }
981
982 static int wm8753_set_dai_clkdiv(struct snd_soc_dai *codec_dai,
983 int div_id, int div)
984 {
985 struct snd_soc_codec *codec = codec_dai->codec;
986 u16 reg;
987
988 switch (div_id) {
989 case WM8753_PCMDIV:
990 reg = snd_soc_read(codec, WM8753_CLOCK) & 0x003f;
991 snd_soc_write(codec, WM8753_CLOCK, reg | div);
992 break;
993 case WM8753_BCLKDIV:
994 reg = snd_soc_read(codec, WM8753_SRATE2) & 0x01c7;
995 snd_soc_write(codec, WM8753_SRATE2, reg | div);
996 break;
997 case WM8753_VXCLKDIV:
998 reg = snd_soc_read(codec, WM8753_SRATE2) & 0x003f;
999 snd_soc_write(codec, WM8753_SRATE2, reg | div);
1000 break;
1001 default:
1002 return -EINVAL;
1003 }
1004 return 0;
1005 }
1006
1007 /*
1008 * Set's HiFi DAC format.
1009 */
1010 static int wm8753_hdac_set_dai_fmt(struct snd_soc_codec *codec,
1011 unsigned int fmt)
1012 {
1013 u16 hifi = snd_soc_read(codec, WM8753_HIFI) & 0x01e0;
1014
1015 /* interface format */
1016 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
1017 case SND_SOC_DAIFMT_I2S:
1018 hifi |= 0x0002;
1019 break;
1020 case SND_SOC_DAIFMT_RIGHT_J:
1021 break;
1022 case SND_SOC_DAIFMT_LEFT_J:
1023 hifi |= 0x0001;
1024 break;
1025 case SND_SOC_DAIFMT_DSP_A:
1026 hifi |= 0x0003;
1027 break;
1028 case SND_SOC_DAIFMT_DSP_B:
1029 hifi |= 0x0013;
1030 break;
1031 default:
1032 return -EINVAL;
1033 }
1034
1035 snd_soc_write(codec, WM8753_HIFI, hifi);
1036 return 0;
1037 }
1038
1039 /*
1040 * Set's I2S DAI format.
1041 */
1042 static int wm8753_i2s_set_dai_fmt(struct snd_soc_codec *codec,
1043 unsigned int fmt)
1044 {
1045 u16 ioctl, hifi;
1046
1047 hifi = snd_soc_read(codec, WM8753_HIFI) & 0x011f;
1048 ioctl = snd_soc_read(codec, WM8753_IOCTL) & 0x00ae;
1049
1050 /* set master/slave audio interface */
1051 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
1052 case SND_SOC_DAIFMT_CBS_CFS:
1053 break;
1054 case SND_SOC_DAIFMT_CBM_CFM:
1055 ioctl |= 0x1;
1056 case SND_SOC_DAIFMT_CBM_CFS:
1057 hifi |= 0x0040;
1058 break;
1059 default:
1060 return -EINVAL;
1061 }
1062
1063 /* clock inversion */
1064 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
1065 case SND_SOC_DAIFMT_DSP_A:
1066 case SND_SOC_DAIFMT_DSP_B:
1067 /* frame inversion not valid for DSP modes */
1068 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
1069 case SND_SOC_DAIFMT_NB_NF:
1070 break;
1071 case SND_SOC_DAIFMT_IB_NF:
1072 hifi |= 0x0080;
1073 break;
1074 default:
1075 return -EINVAL;
1076 }
1077 break;
1078 case SND_SOC_DAIFMT_I2S:
1079 case SND_SOC_DAIFMT_RIGHT_J:
1080 case SND_SOC_DAIFMT_LEFT_J:
1081 hifi &= ~0x0010;
1082 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
1083 case SND_SOC_DAIFMT_NB_NF:
1084 break;
1085 case SND_SOC_DAIFMT_IB_IF:
1086 hifi |= 0x0090;
1087 break;
1088 case SND_SOC_DAIFMT_IB_NF:
1089 hifi |= 0x0080;
1090 break;
1091 case SND_SOC_DAIFMT_NB_IF:
1092 hifi |= 0x0010;
1093 break;
1094 default:
1095 return -EINVAL;
1096 }
1097 break;
1098 default:
1099 return -EINVAL;
1100 }
1101
1102 snd_soc_write(codec, WM8753_HIFI, hifi);
1103 snd_soc_write(codec, WM8753_IOCTL, ioctl);
1104 return 0;
1105 }
1106
1107 /*
1108 * Set PCM DAI bit size and sample rate.
1109 */
1110 static int wm8753_i2s_hw_params(struct snd_pcm_substream *substream,
1111 struct snd_pcm_hw_params *params,
1112 struct snd_soc_dai *dai)
1113 {
1114 struct snd_soc_pcm_runtime *rtd = substream->private_data;
1115 struct snd_soc_codec *codec = rtd->codec;
1116 struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);
1117 u16 srate = snd_soc_read(codec, WM8753_SRATE1) & 0x01c0;
1118 u16 hifi = snd_soc_read(codec, WM8753_HIFI) & 0x01f3;
1119 int coeff;
1120
1121 /* is digital filter coefficient valid ? */
1122 coeff = get_coeff(wm8753->sysclk, params_rate(params));
1123 if (coeff < 0) {
1124 printk(KERN_ERR "wm8753 invalid MCLK or rate\n");
1125 return coeff;
1126 }
1127 snd_soc_write(codec, WM8753_SRATE1, srate | (coeff_div[coeff].sr << 1) |
1128 coeff_div[coeff].usb);
1129
1130 /* bit size */
1131 switch (params_format(params)) {
1132 case SNDRV_PCM_FORMAT_S16_LE:
1133 break;
1134 case SNDRV_PCM_FORMAT_S20_3LE:
1135 hifi |= 0x0004;
1136 break;
1137 case SNDRV_PCM_FORMAT_S24_LE:
1138 hifi |= 0x0008;
1139 break;
1140 case SNDRV_PCM_FORMAT_S32_LE:
1141 hifi |= 0x000c;
1142 break;
1143 }
1144
1145 snd_soc_write(codec, WM8753_HIFI, hifi);
1146 return 0;
1147 }
1148
1149 static int wm8753_mode1v_set_dai_fmt(struct snd_soc_codec *codec,
1150 unsigned int fmt)
1151 {
1152 u16 clock;
1153
1154 /* set clk source as pcmclk */
1155 clock = snd_soc_read(codec, WM8753_CLOCK) & 0xfffb;
1156 snd_soc_write(codec, WM8753_CLOCK, clock);
1157
1158 return wm8753_vdac_adc_set_dai_fmt(codec, fmt);
1159 }
1160
1161 static int wm8753_mode1h_set_dai_fmt(struct snd_soc_codec *codec,
1162 unsigned int fmt)
1163 {
1164 return wm8753_hdac_set_dai_fmt(codec, fmt);
1165 }
1166
1167 static int wm8753_mode2_set_dai_fmt(struct snd_soc_codec *codec,
1168 unsigned int fmt)
1169 {
1170 u16 clock;
1171
1172 /* set clk source as pcmclk */
1173 clock = snd_soc_read(codec, WM8753_CLOCK) & 0xfffb;
1174 snd_soc_write(codec, WM8753_CLOCK, clock);
1175
1176 return wm8753_vdac_adc_set_dai_fmt(codec, fmt);
1177 }
1178
1179 static int wm8753_mode3_4_set_dai_fmt(struct snd_soc_codec *codec,
1180 unsigned int fmt)
1181 {
1182 u16 clock;
1183
1184 /* set clk source as mclk */
1185 clock = snd_soc_read(codec, WM8753_CLOCK) & 0xfffb;
1186 snd_soc_write(codec, WM8753_CLOCK, clock | 0x4);
1187
1188 if (wm8753_hdac_set_dai_fmt(codec, fmt) < 0)
1189 return -EINVAL;
1190 return wm8753_vdac_adc_set_dai_fmt(codec, fmt);
1191 }
1192
1193 static int wm8753_hifi_write_dai_fmt(struct snd_soc_codec *codec,
1194 unsigned int fmt)
1195 {
1196 struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);
1197 int ret = 0;
1198
1199 switch (wm8753->dai_func) {
1200 case 0:
1201 ret = wm8753_mode1h_set_dai_fmt(codec, fmt);
1202 break;
1203 case 1:
1204 ret = wm8753_mode2_set_dai_fmt(codec, fmt);
1205 break;
1206 case 2:
1207 case 3:
1208 ret = wm8753_mode3_4_set_dai_fmt(codec, fmt);
1209 break;
1210 default:
1211 break;
1212 }
1213 if (ret)
1214 return ret;
1215
1216 return wm8753_i2s_set_dai_fmt(codec, fmt);
1217 }
1218
1219 static int wm8753_hifi_set_dai_fmt(struct snd_soc_dai *codec_dai,
1220 unsigned int fmt)
1221 {
1222 struct snd_soc_codec *codec = codec_dai->codec;
1223 struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);
1224
1225 wm8753->hifi_fmt = fmt;
1226
1227 return wm8753_hifi_write_dai_fmt(codec, fmt);
1228 };
1229
1230 static int wm8753_voice_write_dai_fmt(struct snd_soc_codec *codec,
1231 unsigned int fmt)
1232 {
1233 struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);
1234 int ret = 0;
1235
1236 if (wm8753->dai_func != 0)
1237 return 0;
1238
1239 ret = wm8753_mode1v_set_dai_fmt(codec, fmt);
1240 if (ret)
1241 return ret;
1242 ret = wm8753_pcm_set_dai_fmt(codec, fmt);
1243 if (ret)
1244 return ret;
1245
1246 return 0;
1247 };
1248
1249 static int wm8753_voice_set_dai_fmt(struct snd_soc_dai *codec_dai,
1250 unsigned int fmt)
1251 {
1252 struct snd_soc_codec *codec = codec_dai->codec;
1253 struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);
1254
1255 wm8753->voice_fmt = fmt;
1256
1257 return wm8753_voice_write_dai_fmt(codec, fmt);
1258 };
1259
1260 static int wm8753_mute(struct snd_soc_dai *dai, int mute)
1261 {
1262 struct snd_soc_codec *codec = dai->codec;
1263 u16 mute_reg = snd_soc_read(codec, WM8753_DAC) & 0xfff7;
1264 struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);
1265
1266 /* the digital mute covers the HiFi and Voice DAC's on the WM8753.
1267 * make sure we check if they are not both active when we mute */
1268 if (mute && wm8753->dai_func == 1) {
1269 if (!codec->active)
1270 snd_soc_write(codec, WM8753_DAC, mute_reg | 0x8);
1271 } else {
1272 if (mute)
1273 snd_soc_write(codec, WM8753_DAC, mute_reg | 0x8);
1274 else
1275 snd_soc_write(codec, WM8753_DAC, mute_reg);
1276 }
1277
1278 return 0;
1279 }
1280
1281 static int wm8753_set_bias_level(struct snd_soc_codec *codec,
1282 enum snd_soc_bias_level level)
1283 {
1284 u16 pwr_reg = snd_soc_read(codec, WM8753_PWR1) & 0xfe3e;
1285
1286 switch (level) {
1287 case SND_SOC_BIAS_ON:
1288 /* set vmid to 50k and unmute dac */
1289 snd_soc_write(codec, WM8753_PWR1, pwr_reg | 0x00c0);
1290 break;
1291 case SND_SOC_BIAS_PREPARE:
1292 /* set vmid to 5k for quick power up */
1293 snd_soc_write(codec, WM8753_PWR1, pwr_reg | 0x01c1);
1294 break;
1295 case SND_SOC_BIAS_STANDBY:
1296 /* mute dac and set vmid to 500k, enable VREF */
1297 snd_soc_write(codec, WM8753_PWR1, pwr_reg | 0x0141);
1298 break;
1299 case SND_SOC_BIAS_OFF:
1300 snd_soc_write(codec, WM8753_PWR1, 0x0001);
1301 break;
1302 }
1303 codec->dapm.bias_level = level;
1304 return 0;
1305 }
1306
1307 #define WM8753_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\
1308 SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 |\
1309 SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 |\
1310 SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000)
1311
1312 #define WM8753_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
1313 SNDRV_PCM_FMTBIT_S24_LE)
1314
1315 /*
1316 * The WM8753 supports up to 4 different and mutually exclusive DAI
1317 * configurations. This gives 2 PCM's available for use, hifi and voice.
1318 * NOTE: The Voice PCM cannot play or capture audio to the CPU as it's DAI
1319 * is connected between the wm8753 and a BT codec or GSM modem.
1320 *
1321 * 1. Voice over PCM DAI - HIFI DAC over HIFI DAI
1322 * 2. Voice over HIFI DAI - HIFI disabled
1323 * 3. Voice disabled - HIFI over HIFI
1324 * 4. Voice disabled - HIFI over HIFI, uses voice DAI LRC for capture
1325 */
1326 static struct snd_soc_dai_ops wm8753_dai_ops_hifi_mode = {
1327 .hw_params = wm8753_i2s_hw_params,
1328 .digital_mute = wm8753_mute,
1329 .set_fmt = wm8753_hifi_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_ops wm8753_dai_ops_voice_mode = {
1336 .hw_params = wm8753_pcm_hw_params,
1337 .digital_mute = wm8753_mute,
1338 .set_fmt = wm8753_voice_set_dai_fmt,
1339 .set_clkdiv = wm8753_set_dai_clkdiv,
1340 .set_pll = wm8753_set_dai_pll,
1341 .set_sysclk = wm8753_set_dai_sysclk,
1342 };
1343
1344 static struct snd_soc_dai_driver wm8753_dai[] = {
1345 /* DAI HiFi mode 1 */
1346 { .name = "wm8753-hifi",
1347 .playback = {
1348 .stream_name = "HiFi Playback",
1349 .channels_min = 1,
1350 .channels_max = 2,
1351 .rates = WM8753_RATES,
1352 .formats = WM8753_FORMATS
1353 },
1354 .capture = { /* dummy for fast DAI switching */
1355 .stream_name = "Capture",
1356 .channels_min = 1,
1357 .channels_max = 2,
1358 .rates = WM8753_RATES,
1359 .formats = WM8753_FORMATS
1360 },
1361 .ops = &wm8753_dai_ops_hifi_mode,
1362 },
1363 /* DAI Voice mode 1 */
1364 { .name = "wm8753-voice",
1365 .playback = {
1366 .stream_name = "Voice Playback",
1367 .channels_min = 1,
1368 .channels_max = 1,
1369 .rates = WM8753_RATES,
1370 .formats = WM8753_FORMATS,
1371 },
1372 .capture = {
1373 .stream_name = "Capture",
1374 .channels_min = 1,
1375 .channels_max = 2,
1376 .rates = WM8753_RATES,
1377 .formats = WM8753_FORMATS,
1378 },
1379 .ops = &wm8753_dai_ops_voice_mode,
1380 },
1381 };
1382
1383 static void wm8753_work(struct work_struct *work)
1384 {
1385 struct snd_soc_dapm_context *dapm =
1386 container_of(work, struct snd_soc_dapm_context,
1387 delayed_work.work);
1388 struct snd_soc_codec *codec = dapm->codec;
1389 wm8753_set_bias_level(codec, dapm->bias_level);
1390 }
1391
1392 static int wm8753_suspend(struct snd_soc_codec *codec, pm_message_t state)
1393 {
1394 wm8753_set_bias_level(codec, SND_SOC_BIAS_OFF);
1395 return 0;
1396 }
1397
1398 static int wm8753_resume(struct snd_soc_codec *codec)
1399 {
1400 u16 *reg_cache = codec->reg_cache;
1401 int i;
1402
1403 /* Sync reg_cache with the hardware */
1404 for (i = 1; i < ARRAY_SIZE(wm8753_reg); i++) {
1405 if (i == WM8753_RESET)
1406 continue;
1407
1408 /* No point in writing hardware default values back */
1409 if (reg_cache[i] == wm8753_reg[i])
1410 continue;
1411
1412 snd_soc_write(codec, i, reg_cache[i]);
1413 }
1414
1415 wm8753_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
1416
1417 /* charge wm8753 caps */
1418 if (codec->dapm.suspend_bias_level == SND_SOC_BIAS_ON) {
1419 wm8753_set_bias_level(codec, SND_SOC_BIAS_PREPARE);
1420 codec->dapm.bias_level = SND_SOC_BIAS_ON;
1421 schedule_delayed_work(&codec->dapm.delayed_work,
1422 msecs_to_jiffies(caps_charge));
1423 }
1424
1425 return 0;
1426 }
1427
1428 static int wm8753_probe(struct snd_soc_codec *codec)
1429 {
1430 struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);
1431 int ret;
1432
1433 INIT_DELAYED_WORK(&codec->dapm.delayed_work, wm8753_work);
1434
1435 ret = snd_soc_codec_set_cache_io(codec, 7, 9, wm8753->control_type);
1436 if (ret < 0) {
1437 dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret);
1438 return ret;
1439 }
1440
1441 ret = wm8753_reset(codec);
1442 if (ret < 0) {
1443 dev_err(codec->dev, "Failed to issue reset: %d\n", ret);
1444 return ret;
1445 }
1446
1447 wm8753_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
1448 wm8753->dai_func = 0;
1449
1450 /* charge output caps */
1451 wm8753_set_bias_level(codec, SND_SOC_BIAS_PREPARE);
1452 schedule_delayed_work(&codec->dapm.delayed_work,
1453 msecs_to_jiffies(caps_charge));
1454
1455 /* set the update bits */
1456 snd_soc_update_bits(codec, WM8753_LDAC, 0x0100, 0x0100);
1457 snd_soc_update_bits(codec, WM8753_RDAC, 0x0100, 0x0100);
1458 snd_soc_update_bits(codec, WM8753_LADC, 0x0100, 0x0100);
1459 snd_soc_update_bits(codec, WM8753_RADC, 0x0100, 0x0100);
1460 snd_soc_update_bits(codec, WM8753_LOUT1V, 0x0100, 0x0100);
1461 snd_soc_update_bits(codec, WM8753_ROUT1V, 0x0100, 0x0100);
1462 snd_soc_update_bits(codec, WM8753_LOUT2V, 0x0100, 0x0100);
1463 snd_soc_update_bits(codec, WM8753_ROUT2V, 0x0100, 0x0100);
1464 snd_soc_update_bits(codec, WM8753_LINVOL, 0x0100, 0x0100);
1465 snd_soc_update_bits(codec, WM8753_RINVOL, 0x0100, 0x0100);
1466
1467 snd_soc_add_controls(codec, wm8753_snd_controls,
1468 ARRAY_SIZE(wm8753_snd_controls));
1469 wm8753_add_widgets(codec);
1470
1471 return 0;
1472 }
1473
1474 /* power down chip */
1475 static int wm8753_remove(struct snd_soc_codec *codec)
1476 {
1477 flush_delayed_work_sync(&codec->dapm.delayed_work);
1478 wm8753_set_bias_level(codec, SND_SOC_BIAS_OFF);
1479
1480 return 0;
1481 }
1482
1483 static struct snd_soc_codec_driver soc_codec_dev_wm8753 = {
1484 .probe = wm8753_probe,
1485 .remove = wm8753_remove,
1486 .suspend = wm8753_suspend,
1487 .resume = wm8753_resume,
1488 .set_bias_level = wm8753_set_bias_level,
1489 .reg_cache_size = ARRAY_SIZE(wm8753_reg),
1490 .reg_word_size = sizeof(u16),
1491 .reg_cache_default = wm8753_reg,
1492 };
1493
1494 static const struct of_device_id wm8753_of_match[] = {
1495 { .compatible = "wlf,wm8753", },
1496 { }
1497 };
1498 MODULE_DEVICE_TABLE(of, wm8753_of_match);
1499
1500 #if defined(CONFIG_SPI_MASTER)
1501 static int __devinit wm8753_spi_probe(struct spi_device *spi)
1502 {
1503 struct wm8753_priv *wm8753;
1504 int ret;
1505
1506 wm8753 = kzalloc(sizeof(struct wm8753_priv), GFP_KERNEL);
1507 if (wm8753 == NULL)
1508 return -ENOMEM;
1509
1510 wm8753->control_type = SND_SOC_SPI;
1511 spi_set_drvdata(spi, wm8753);
1512
1513 ret = snd_soc_register_codec(&spi->dev,
1514 &soc_codec_dev_wm8753, wm8753_dai, ARRAY_SIZE(wm8753_dai));
1515 if (ret < 0)
1516 kfree(wm8753);
1517 return ret;
1518 }
1519
1520 static int __devexit wm8753_spi_remove(struct spi_device *spi)
1521 {
1522 snd_soc_unregister_codec(&spi->dev);
1523 kfree(spi_get_drvdata(spi));
1524 return 0;
1525 }
1526
1527 static struct spi_driver wm8753_spi_driver = {
1528 .driver = {
1529 .name = "wm8753",
1530 .owner = THIS_MODULE,
1531 .of_match_table = wm8753_of_match,
1532 },
1533 .probe = wm8753_spi_probe,
1534 .remove = __devexit_p(wm8753_spi_remove),
1535 };
1536 #endif /* CONFIG_SPI_MASTER */
1537
1538 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
1539 static __devinit int wm8753_i2c_probe(struct i2c_client *i2c,
1540 const struct i2c_device_id *id)
1541 {
1542 struct wm8753_priv *wm8753;
1543 int ret;
1544
1545 wm8753 = kzalloc(sizeof(struct wm8753_priv), GFP_KERNEL);
1546 if (wm8753 == NULL)
1547 return -ENOMEM;
1548
1549 i2c_set_clientdata(i2c, wm8753);
1550 wm8753->control_type = SND_SOC_I2C;
1551
1552 ret = snd_soc_register_codec(&i2c->dev,
1553 &soc_codec_dev_wm8753, wm8753_dai, ARRAY_SIZE(wm8753_dai));
1554 if (ret < 0)
1555 kfree(wm8753);
1556 return ret;
1557 }
1558
1559 static __devexit int wm8753_i2c_remove(struct i2c_client *client)
1560 {
1561 snd_soc_unregister_codec(&client->dev);
1562 kfree(i2c_get_clientdata(client));
1563 return 0;
1564 }
1565
1566 static const struct i2c_device_id wm8753_i2c_id[] = {
1567 { "wm8753", 0 },
1568 { }
1569 };
1570 MODULE_DEVICE_TABLE(i2c, wm8753_i2c_id);
1571
1572 static struct i2c_driver wm8753_i2c_driver = {
1573 .driver = {
1574 .name = "wm8753",
1575 .owner = THIS_MODULE,
1576 .of_match_table = wm8753_of_match,
1577 },
1578 .probe = wm8753_i2c_probe,
1579 .remove = __devexit_p(wm8753_i2c_remove),
1580 .id_table = wm8753_i2c_id,
1581 };
1582 #endif
1583
1584 static int __init wm8753_modinit(void)
1585 {
1586 int ret = 0;
1587 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
1588 ret = i2c_add_driver(&wm8753_i2c_driver);
1589 if (ret != 0) {
1590 printk(KERN_ERR "Failed to register wm8753 I2C driver: %d\n",
1591 ret);
1592 }
1593 #endif
1594 #if defined(CONFIG_SPI_MASTER)
1595 ret = spi_register_driver(&wm8753_spi_driver);
1596 if (ret != 0) {
1597 printk(KERN_ERR "Failed to register wm8753 SPI driver: %d\n",
1598 ret);
1599 }
1600 #endif
1601 return ret;
1602 }
1603 module_init(wm8753_modinit);
1604
1605 static void __exit wm8753_exit(void)
1606 {
1607 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
1608 i2c_del_driver(&wm8753_i2c_driver);
1609 #endif
1610 #if defined(CONFIG_SPI_MASTER)
1611 spi_unregister_driver(&wm8753_spi_driver);
1612 #endif
1613 }
1614 module_exit(wm8753_exit);
1615
1616 MODULE_DESCRIPTION("ASoC WM8753 driver");
1617 MODULE_AUTHOR("Liam Girdwood");
1618 MODULE_LICENSE("GPL");
Linux kernel - Deliverables
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