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Merge branch 'for-linus' of git://oss.sgi.com/xfs/xfs
[linux/fpc-iii.git] / sound / soc / codecs / wm8753.c
blobb59f349c52184fc9bf83a975f8e921f2fda92632
1 /*
2 * wm8753.c -- WM8753 ALSA Soc Audio driver
3 *
4 * Copyright 2003 Wolfson Microelectronics PLC.
5 * Author: Liam Girdwood <lrg@slimlogic.co.uk>
6 *
7 * This program is free software; you can redistribute it and/or modify it
8 * under the terms of the GNU General Public License as published by the
9 * Free Software Foundation; either version 2 of the License, or (at your
10 * option) any later version.
11 *
12 * Notes:
13 * The WM8753 is a low power, high quality stereo codec with integrated PCM
14 * codec designed for portable digital telephony applications.
15 *
16 * Dual DAI:-
17 *
18 * This driver support 2 DAI PCM's. This makes the default PCM available for
19 * HiFi audio (e.g. MP3, ogg) playback/capture and the other PCM available for
20 * voice.
21 *
22 * Please note that the voice PCM can be connected directly to a Bluetooth
23 * codec or GSM modem and thus cannot be read or written to, although it is
24 * available to be configured with snd_hw_params(), etc and kcontrols in the
25 * normal alsa manner.
26 *
27 * Fast DAI switching:-
28 *
29 * The driver can now fast switch between the DAI configurations via a
30 * an alsa kcontrol. This allows the PCM to remain open.
31 *
32 */
33
34 #include <linux/module.h>
35 #include <linux/moduleparam.h>
36 #include <linux/kernel.h>
37 #include <linux/init.h>
38 #include <linux/delay.h>
39 #include <linux/pm.h>
40 #include <linux/i2c.h>
41 #include <linux/platform_device.h>
42 #include <linux/spi/spi.h>
43 #include <linux/slab.h>
44 #include <sound/core.h>
45 #include <sound/pcm.h>
46 #include <sound/pcm_params.h>
47 #include <sound/soc.h>
48 #include <sound/soc-dapm.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 void wm8753_set_dai_mode(struct snd_soc_codec *codec,
60 unsigned int mode);
61
62 /*
63 * wm8753 register cache
64 * We can't read the WM8753 register space when we
65 * are using 2 wire for device control, so we cache them instead.
66 */
67 static const u16 wm8753_reg[] = {
68 0x0008, 0x0000, 0x000a, 0x000a,
69 0x0033, 0x0000, 0x0007, 0x00ff,
70 0x00ff, 0x000f, 0x000f, 0x007b,
71 0x0000, 0x0032, 0x0000, 0x00c3,
72 0x00c3, 0x00c0, 0x0000, 0x0000,
73 0x0000, 0x0000, 0x0000, 0x0000,
74 0x0000, 0x0000, 0x0000, 0x0000,
75 0x0000, 0x0000, 0x0000, 0x0055,
76 0x0005, 0x0050, 0x0055, 0x0050,
77 0x0055, 0x0050, 0x0055, 0x0079,
78 0x0079, 0x0079, 0x0079, 0x0079,
79 0x0000, 0x0000, 0x0000, 0x0000,
80 0x0097, 0x0097, 0x0000, 0x0004,
81 0x0000, 0x0083, 0x0024, 0x01ba,
82 0x0000, 0x0083, 0x0024, 0x01ba,
83 0x0000, 0x0000, 0x0000
84 };
85
86 /* codec private data */
87 struct wm8753_priv {
88 unsigned int sysclk;
89 unsigned int pcmclk;
90 struct snd_soc_codec codec;
91 u16 reg_cache[ARRAY_SIZE(wm8753_reg)];
92 };
93
94 /*
95 * read wm8753 register cache
96 */
97 static inline unsigned int wm8753_read_reg_cache(struct snd_soc_codec *codec,
98 unsigned int reg)
99 {
100 u16 *cache = codec->reg_cache;
101 if (reg < 1 || reg >= (ARRAY_SIZE(wm8753_reg) + 1))
102 return -1;
103 return cache[reg - 1];
104 }
105
106 /*
107 * write wm8753 register cache
108 */
109 static inline void wm8753_write_reg_cache(struct snd_soc_codec *codec,
110 unsigned int reg, unsigned int value)
111 {
112 u16 *cache = codec->reg_cache;
113 if (reg < 1 || reg >= (ARRAY_SIZE(wm8753_reg) + 1))
114 return;
115 cache[reg - 1] = value;
116 }
117
118 /*
119 * write to the WM8753 register space
120 */
121 static int wm8753_write(struct snd_soc_codec *codec, unsigned int reg,
122 unsigned int value)
123 {
124 u8 data[2];
125
126 /* data is
127 * D15..D9 WM8753 register offset
128 * D8...D0 register data
129 */
130 data[0] = (reg << 1) | ((value >> 8) & 0x0001);
131 data[1] = value & 0x00ff;
132
133 wm8753_write_reg_cache(codec, reg, value);
134 if (codec->hw_write(codec->control_data, data, 2) == 2)
135 return 0;
136 else
137 return -EIO;
138 }
139
140 #define wm8753_reset(c) wm8753_write(c, WM8753_RESET, 0)
141
142 /*
143 * WM8753 Controls
144 */
145 static const char *wm8753_base[] = {"Linear Control", "Adaptive Boost"};
146 static const char *wm8753_base_filter[] =
147 {"130Hz @ 48kHz", "200Hz @ 48kHz", "100Hz @ 16kHz", "400Hz @ 48kHz",
148 "100Hz @ 8kHz", "200Hz @ 8kHz"};
149 static const char *wm8753_treble[] = {"8kHz", "4kHz"};
150 static const char *wm8753_alc_func[] = {"Off", "Right", "Left", "Stereo"};
151 static const char *wm8753_ng_type[] = {"Constant PGA Gain", "Mute ADC Output"};
152 static const char *wm8753_3d_func[] = {"Capture", "Playback"};
153 static const char *wm8753_3d_uc[] = {"2.2kHz", "1.5kHz"};
154 static const char *wm8753_3d_lc[] = {"200Hz", "500Hz"};
155 static const char *wm8753_deemp[] = {"None", "32kHz", "44.1kHz", "48kHz"};
156 static const char *wm8753_mono_mix[] = {"Stereo", "Left", "Right", "Mono"};
157 static const char *wm8753_dac_phase[] = {"Non Inverted", "Inverted"};
158 static const char *wm8753_line_mix[] = {"Line 1 + 2", "Line 1 - 2",
159 "Line 1", "Line 2"};
160 static const char *wm8753_mono_mux[] = {"Line Mix", "Rx Mix"};
161 static const char *wm8753_right_mux[] = {"Line 2", "Rx Mix"};
162 static const char *wm8753_left_mux[] = {"Line 1", "Rx Mix"};
163 static const char *wm8753_rxmsel[] = {"RXP - RXN", "RXP + RXN", "RXP", "RXN"};
164 static const char *wm8753_sidetone_mux[] = {"Left PGA", "Mic 1", "Mic 2",
165 "Right PGA"};
166 static const char *wm8753_mono2_src[] = {"Inverted Mono 1", "Left", "Right",
167 "Left + Right"};
168 static const char *wm8753_out3[] = {"VREF", "ROUT2", "Left + Right"};
169 static const char *wm8753_out4[] = {"VREF", "Capture ST", "LOUT2"};
170 static const char *wm8753_radcsel[] = {"PGA", "Line or RXP-RXN", "Sidetone"};
171 static const char *wm8753_ladcsel[] = {"PGA", "Line or RXP-RXN", "Line"};
172 static const char *wm8753_mono_adc[] = {"Stereo", "Analogue Mix Left",
173 "Analogue Mix Right", "Digital Mono Mix"};
174 static const char *wm8753_adc_hp[] = {"3.4Hz @ 48kHz", "82Hz @ 16k",
175 "82Hz @ 8kHz", "170Hz @ 8kHz"};
176 static const char *wm8753_adc_filter[] = {"HiFi", "Voice"};
177 static const char *wm8753_mic_sel[] = {"Mic 1", "Mic 2", "Mic 3"};
178 static const char *wm8753_dai_mode[] = {"DAI 0", "DAI 1", "DAI 2", "DAI 3"};
179 static const char *wm8753_dat_sel[] = {"Stereo", "Left ADC", "Right ADC",
180 "Channel Swap"};
181 static const char *wm8753_rout2_phase[] = {"Non Inverted", "Inverted"};
182
183 static const struct soc_enum wm8753_enum[] = {
184 SOC_ENUM_SINGLE(WM8753_BASS, 7, 2, wm8753_base),
185 SOC_ENUM_SINGLE(WM8753_BASS, 4, 6, wm8753_base_filter),
186 SOC_ENUM_SINGLE(WM8753_TREBLE, 6, 2, wm8753_treble),
187 SOC_ENUM_SINGLE(WM8753_ALC1, 7, 4, wm8753_alc_func),
188 SOC_ENUM_SINGLE(WM8753_NGATE, 1, 2, wm8753_ng_type),
189 SOC_ENUM_SINGLE(WM8753_3D, 7, 2, wm8753_3d_func),
190 SOC_ENUM_SINGLE(WM8753_3D, 6, 2, wm8753_3d_uc),
191 SOC_ENUM_SINGLE(WM8753_3D, 5, 2, wm8753_3d_lc),
192 SOC_ENUM_SINGLE(WM8753_DAC, 1, 4, wm8753_deemp),
193 SOC_ENUM_SINGLE(WM8753_DAC, 4, 4, wm8753_mono_mix),
194 SOC_ENUM_SINGLE(WM8753_DAC, 6, 2, wm8753_dac_phase),
195 SOC_ENUM_SINGLE(WM8753_INCTL1, 3, 4, wm8753_line_mix),
196 SOC_ENUM_SINGLE(WM8753_INCTL1, 2, 2, wm8753_mono_mux),
197 SOC_ENUM_SINGLE(WM8753_INCTL1, 1, 2, wm8753_right_mux),
198 SOC_ENUM_SINGLE(WM8753_INCTL1, 0, 2, wm8753_left_mux),
199 SOC_ENUM_SINGLE(WM8753_INCTL2, 6, 4, wm8753_rxmsel),
200 SOC_ENUM_SINGLE(WM8753_INCTL2, 4, 4, wm8753_sidetone_mux),
201 SOC_ENUM_SINGLE(WM8753_OUTCTL, 7, 4, wm8753_mono2_src),
202 SOC_ENUM_SINGLE(WM8753_OUTCTL, 0, 3, wm8753_out3),
203 SOC_ENUM_SINGLE(WM8753_ADCTL2, 7, 3, wm8753_out4),
204 SOC_ENUM_SINGLE(WM8753_ADCIN, 2, 3, wm8753_radcsel),
205 SOC_ENUM_SINGLE(WM8753_ADCIN, 0, 3, wm8753_ladcsel),
206 SOC_ENUM_SINGLE(WM8753_ADCIN, 4, 4, wm8753_mono_adc),
207 SOC_ENUM_SINGLE(WM8753_ADC, 2, 4, wm8753_adc_hp),
208 SOC_ENUM_SINGLE(WM8753_ADC, 4, 2, wm8753_adc_filter),
209 SOC_ENUM_SINGLE(WM8753_MICBIAS, 6, 3, wm8753_mic_sel),
210 SOC_ENUM_SINGLE(WM8753_IOCTL, 2, 4, wm8753_dai_mode),
211 SOC_ENUM_SINGLE(WM8753_ADC, 7, 4, wm8753_dat_sel),
212 SOC_ENUM_SINGLE(WM8753_OUTCTL, 2, 2, wm8753_rout2_phase),
213 };
214
215
216 static int wm8753_get_dai(struct snd_kcontrol *kcontrol,
217 struct snd_ctl_elem_value *ucontrol)
218 {
219 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
220 int mode = wm8753_read_reg_cache(codec, WM8753_IOCTL);
221
222 ucontrol->value.integer.value[0] = (mode & 0xc) >> 2;
223 return 0;
224 }
225
226 static int wm8753_set_dai(struct snd_kcontrol *kcontrol,
227 struct snd_ctl_elem_value *ucontrol)
228 {
229 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
230 int mode = wm8753_read_reg_cache(codec, WM8753_IOCTL);
231
232 if (((mode & 0xc) >> 2) == ucontrol->value.integer.value[0])
233 return 0;
234
235 mode &= 0xfff3;
236 mode |= (ucontrol->value.integer.value[0] << 2);
237
238 wm8753_write(codec, WM8753_IOCTL, mode);
239 wm8753_set_dai_mode(codec, ucontrol->value.integer.value[0]);
240 return 1;
241 }
242
243 static const DECLARE_TLV_DB_SCALE(rec_mix_tlv, -1500, 300, 0);
244 static const DECLARE_TLV_DB_SCALE(mic_preamp_tlv, 1200, 600, 0);
245 static const DECLARE_TLV_DB_SCALE(adc_tlv, -9750, 50, 1);
246 static const DECLARE_TLV_DB_SCALE(dac_tlv, -12750, 50, 1);
247 static const unsigned int out_tlv[] = {
248 TLV_DB_RANGE_HEAD(2),
249 /* 0000000 - 0101111 = "Analogue mute" */
250 0, 48, TLV_DB_SCALE_ITEM(-25500, 0, 0),
251 48, 127, TLV_DB_SCALE_ITEM(-7300, 100, 0),
252 };
253 static const DECLARE_TLV_DB_SCALE(mix_tlv, -1500, 300, 0);
254 static const DECLARE_TLV_DB_SCALE(voice_mix_tlv, -1200, 300, 0);
255 static const DECLARE_TLV_DB_SCALE(pga_tlv, -1725, 75, 0);
256
257 static const struct snd_kcontrol_new wm8753_snd_controls[] = {
258 SOC_DOUBLE_R_TLV("PCM Volume", WM8753_LDAC, WM8753_RDAC, 0, 255, 0, dac_tlv),
259
260 SOC_DOUBLE_R_TLV("ADC Capture Volume", WM8753_LADC, WM8753_RADC, 0, 255, 0,
261 adc_tlv),
262
263 SOC_DOUBLE_R_TLV("Headphone Playback Volume", WM8753_LOUT1V, WM8753_ROUT1V,
264 0, 127, 0, out_tlv),
265 SOC_DOUBLE_R_TLV("Speaker Playback Volume", WM8753_LOUT2V, WM8753_ROUT2V, 0,
266 127, 0, out_tlv),
267
268 SOC_SINGLE_TLV("Mono Playback Volume", WM8753_MOUTV, 0, 127, 0, out_tlv),
269
270 SOC_DOUBLE_R_TLV("Bypass Playback Volume", WM8753_LOUTM1, WM8753_ROUTM1, 4, 7,
271 1, mix_tlv),
272 SOC_DOUBLE_R_TLV("Sidetone Playback Volume", WM8753_LOUTM2, WM8753_ROUTM2, 4,
273 7, 1, mix_tlv),
274 SOC_DOUBLE_R_TLV("Voice Playback Volume", WM8753_LOUTM2, WM8753_ROUTM2, 0, 7,
275 1, voice_mix_tlv),
276
277 SOC_DOUBLE_R("Headphone Playback ZC Switch", WM8753_LOUT1V, WM8753_ROUT1V, 7,
278 1, 0),
279 SOC_DOUBLE_R("Speaker Playback ZC Switch", WM8753_LOUT2V, WM8753_ROUT2V, 7,
280 1, 0),
281
282 SOC_SINGLE_TLV("Mono Bypass Playback Volume", WM8753_MOUTM1, 4, 7, 1, mix_tlv),
283 SOC_SINGLE_TLV("Mono Sidetone Playback Volume", WM8753_MOUTM2, 4, 7, 1,
284 mix_tlv),
285 SOC_SINGLE_TLV("Mono Voice Playback Volume", WM8753_MOUTM2, 0, 7, 1,
286 voice_mix_tlv),
287 SOC_SINGLE("Mono Playback ZC Switch", WM8753_MOUTV, 7, 1, 0),
288
289 SOC_ENUM("Bass Boost", wm8753_enum[0]),
290 SOC_ENUM("Bass Filter", wm8753_enum[1]),
291 SOC_SINGLE("Bass Volume", WM8753_BASS, 0, 15, 1),
292
293 SOC_SINGLE("Treble Volume", WM8753_TREBLE, 0, 15, 1),
294 SOC_ENUM("Treble Cut-off", wm8753_enum[2]),
295
296 SOC_DOUBLE_TLV("Sidetone Capture Volume", WM8753_RECMIX1, 0, 4, 7, 1,
297 rec_mix_tlv),
298 SOC_SINGLE_TLV("Voice Sidetone Capture Volume", WM8753_RECMIX2, 0, 7, 1,
299 rec_mix_tlv),
300
301 SOC_DOUBLE_R_TLV("Capture Volume", WM8753_LINVOL, WM8753_RINVOL, 0, 63, 0,
302 pga_tlv),
303 SOC_DOUBLE_R("Capture ZC Switch", WM8753_LINVOL, WM8753_RINVOL, 6, 1, 0),
304 SOC_DOUBLE_R("Capture Switch", WM8753_LINVOL, WM8753_RINVOL, 7, 1, 1),
305
306 SOC_ENUM("Capture Filter Select", wm8753_enum[23]),
307 SOC_ENUM("Capture Filter Cut-off", wm8753_enum[24]),
308 SOC_SINGLE("Capture Filter Switch", WM8753_ADC, 0, 1, 1),
309
310 SOC_SINGLE("ALC Capture Target Volume", WM8753_ALC1, 0, 7, 0),
311 SOC_SINGLE("ALC Capture Max Volume", WM8753_ALC1, 4, 7, 0),
312 SOC_ENUM("ALC Capture Function", wm8753_enum[3]),
313 SOC_SINGLE("ALC Capture ZC Switch", WM8753_ALC2, 8, 1, 0),
314 SOC_SINGLE("ALC Capture Hold Time", WM8753_ALC2, 0, 15, 1),
315 SOC_SINGLE("ALC Capture Decay Time", WM8753_ALC3, 4, 15, 1),
316 SOC_SINGLE("ALC Capture Attack Time", WM8753_ALC3, 0, 15, 0),
317 SOC_SINGLE("ALC Capture NG Threshold", WM8753_NGATE, 3, 31, 0),
318 SOC_ENUM("ALC Capture NG Type", wm8753_enum[4]),
319 SOC_SINGLE("ALC Capture NG Switch", WM8753_NGATE, 0, 1, 0),
320
321 SOC_ENUM("3D Function", wm8753_enum[5]),
322 SOC_ENUM("3D Upper Cut-off", wm8753_enum[6]),
323 SOC_ENUM("3D Lower Cut-off", wm8753_enum[7]),
324 SOC_SINGLE("3D Volume", WM8753_3D, 1, 15, 0),
325 SOC_SINGLE("3D Switch", WM8753_3D, 0, 1, 0),
326
327 SOC_SINGLE("Capture 6dB Attenuate", WM8753_ADCTL1, 2, 1, 0),
328 SOC_SINGLE("Playback 6dB Attenuate", WM8753_ADCTL1, 1, 1, 0),
329
330 SOC_ENUM("De-emphasis", wm8753_enum[8]),
331 SOC_ENUM("Playback Mono Mix", wm8753_enum[9]),
332 SOC_ENUM("Playback Phase", wm8753_enum[10]),
333
334 SOC_SINGLE_TLV("Mic2 Capture Volume", WM8753_INCTL1, 7, 3, 0, mic_preamp_tlv),
335 SOC_SINGLE_TLV("Mic1 Capture Volume", WM8753_INCTL1, 5, 3, 0, mic_preamp_tlv),
336
337 SOC_ENUM_EXT("DAI Mode", wm8753_enum[26], wm8753_get_dai, wm8753_set_dai),
338
339 SOC_ENUM("ADC Data Select", wm8753_enum[27]),
340 SOC_ENUM("ROUT2 Phase", wm8753_enum[28]),
341 };
342
343 /*
344 * _DAPM_ Controls
345 */
346
347 /* Left Mixer */
348 static const struct snd_kcontrol_new wm8753_left_mixer_controls[] = {
349 SOC_DAPM_SINGLE("Voice Playback Switch", WM8753_LOUTM2, 8, 1, 0),
350 SOC_DAPM_SINGLE("Sidetone Playback Switch", WM8753_LOUTM2, 7, 1, 0),
351 SOC_DAPM_SINGLE("Left Playback Switch", WM8753_LOUTM1, 8, 1, 0),
352 SOC_DAPM_SINGLE("Bypass Playback Switch", WM8753_LOUTM1, 7, 1, 0),
353 };
354
355 /* Right mixer */
356 static const struct snd_kcontrol_new wm8753_right_mixer_controls[] = {
357 SOC_DAPM_SINGLE("Voice Playback Switch", WM8753_ROUTM2, 8, 1, 0),
358 SOC_DAPM_SINGLE("Sidetone Playback Switch", WM8753_ROUTM2, 7, 1, 0),
359 SOC_DAPM_SINGLE("Right Playback Switch", WM8753_ROUTM1, 8, 1, 0),
360 SOC_DAPM_SINGLE("Bypass Playback Switch", WM8753_ROUTM1, 7, 1, 0),
361 };
362
363 /* Mono mixer */
364 static const struct snd_kcontrol_new wm8753_mono_mixer_controls[] = {
365 SOC_DAPM_SINGLE("Left Playback Switch", WM8753_MOUTM1, 8, 1, 0),
366 SOC_DAPM_SINGLE("Right Playback Switch", WM8753_MOUTM2, 8, 1, 0),
367 SOC_DAPM_SINGLE("Voice Playback Switch", WM8753_MOUTM2, 3, 1, 0),
368 SOC_DAPM_SINGLE("Sidetone Playback Switch", WM8753_MOUTM2, 7, 1, 0),
369 SOC_DAPM_SINGLE("Bypass Playback Switch", WM8753_MOUTM1, 7, 1, 0),
370 };
371
372 /* Mono 2 Mux */
373 static const struct snd_kcontrol_new wm8753_mono2_controls =
374 SOC_DAPM_ENUM("Route", wm8753_enum[17]);
375
376 /* Out 3 Mux */
377 static const struct snd_kcontrol_new wm8753_out3_controls =
378 SOC_DAPM_ENUM("Route", wm8753_enum[18]);
379
380 /* Out 4 Mux */
381 static const struct snd_kcontrol_new wm8753_out4_controls =
382 SOC_DAPM_ENUM("Route", wm8753_enum[19]);
383
384 /* ADC Mono Mix */
385 static const struct snd_kcontrol_new wm8753_adc_mono_controls =
386 SOC_DAPM_ENUM("Route", wm8753_enum[22]);
387
388 /* Record mixer */
389 static const struct snd_kcontrol_new wm8753_record_mixer_controls[] = {
390 SOC_DAPM_SINGLE("Voice Capture Switch", WM8753_RECMIX2, 3, 1, 0),
391 SOC_DAPM_SINGLE("Left Capture Switch", WM8753_RECMIX1, 3, 1, 0),
392 SOC_DAPM_SINGLE("Right Capture Switch", WM8753_RECMIX1, 7, 1, 0),
393 };
394
395 /* Left ADC mux */
396 static const struct snd_kcontrol_new wm8753_adc_left_controls =
397 SOC_DAPM_ENUM("Route", wm8753_enum[21]);
398
399 /* Right ADC mux */
400 static const struct snd_kcontrol_new wm8753_adc_right_controls =
401 SOC_DAPM_ENUM("Route", wm8753_enum[20]);
402
403 /* MIC mux */
404 static const struct snd_kcontrol_new wm8753_mic_mux_controls =
405 SOC_DAPM_ENUM("Route", wm8753_enum[16]);
406
407 /* ALC mixer */
408 static const struct snd_kcontrol_new wm8753_alc_mixer_controls[] = {
409 SOC_DAPM_SINGLE("Line Capture Switch", WM8753_INCTL2, 3, 1, 0),
410 SOC_DAPM_SINGLE("Mic2 Capture Switch", WM8753_INCTL2, 2, 1, 0),
411 SOC_DAPM_SINGLE("Mic1 Capture Switch", WM8753_INCTL2, 1, 1, 0),
412 SOC_DAPM_SINGLE("Rx Capture Switch", WM8753_INCTL2, 0, 1, 0),
413 };
414
415 /* Left Line mux */
416 static const struct snd_kcontrol_new wm8753_line_left_controls =
417 SOC_DAPM_ENUM("Route", wm8753_enum[14]);
418
419 /* Right Line mux */
420 static const struct snd_kcontrol_new wm8753_line_right_controls =
421 SOC_DAPM_ENUM("Route", wm8753_enum[13]);
422
423 /* Mono Line mux */
424 static const struct snd_kcontrol_new wm8753_line_mono_controls =
425 SOC_DAPM_ENUM("Route", wm8753_enum[12]);
426
427 /* Line mux and mixer */
428 static const struct snd_kcontrol_new wm8753_line_mux_mix_controls =
429 SOC_DAPM_ENUM("Route", wm8753_enum[11]);
430
431 /* Rx mux and mixer */
432 static const struct snd_kcontrol_new wm8753_rx_mux_mix_controls =
433 SOC_DAPM_ENUM("Route", wm8753_enum[15]);
434
435 /* Mic Selector Mux */
436 static const struct snd_kcontrol_new wm8753_mic_sel_mux_controls =
437 SOC_DAPM_ENUM("Route", wm8753_enum[25]);
438
439 static const struct snd_soc_dapm_widget wm8753_dapm_widgets[] = {
440 SND_SOC_DAPM_MICBIAS("Mic Bias", WM8753_PWR1, 5, 0),
441 SND_SOC_DAPM_MIXER("Left Mixer", WM8753_PWR4, 0, 0,
442 &wm8753_left_mixer_controls[0], ARRAY_SIZE(wm8753_left_mixer_controls)),
443 SND_SOC_DAPM_PGA("Left Out 1", WM8753_PWR3, 8, 0, NULL, 0),
444 SND_SOC_DAPM_PGA("Left Out 2", WM8753_PWR3, 6, 0, NULL, 0),
445 SND_SOC_DAPM_DAC("Left DAC", "Left HiFi Playback", WM8753_PWR1, 3, 0),
446 SND_SOC_DAPM_OUTPUT("LOUT1"),
447 SND_SOC_DAPM_OUTPUT("LOUT2"),
448 SND_SOC_DAPM_MIXER("Right Mixer", WM8753_PWR4, 1, 0,
449 &wm8753_right_mixer_controls[0], ARRAY_SIZE(wm8753_right_mixer_controls)),
450 SND_SOC_DAPM_PGA("Right Out 1", WM8753_PWR3, 7, 0, NULL, 0),
451 SND_SOC_DAPM_PGA("Right Out 2", WM8753_PWR3, 5, 0, NULL, 0),
452 SND_SOC_DAPM_DAC("Right DAC", "Right HiFi Playback", WM8753_PWR1, 2, 0),
453 SND_SOC_DAPM_OUTPUT("ROUT1"),
454 SND_SOC_DAPM_OUTPUT("ROUT2"),
455 SND_SOC_DAPM_MIXER("Mono Mixer", WM8753_PWR4, 2, 0,
456 &wm8753_mono_mixer_controls[0], ARRAY_SIZE(wm8753_mono_mixer_controls)),
457 SND_SOC_DAPM_PGA("Mono Out 1", WM8753_PWR3, 2, 0, NULL, 0),
458 SND_SOC_DAPM_PGA("Mono Out 2", WM8753_PWR3, 1, 0, NULL, 0),
459 SND_SOC_DAPM_DAC("Voice DAC", "Voice Playback", WM8753_PWR1, 4, 0),
460 SND_SOC_DAPM_OUTPUT("MONO1"),
461 SND_SOC_DAPM_MUX("Mono 2 Mux", SND_SOC_NOPM, 0, 0, &wm8753_mono2_controls),
462 SND_SOC_DAPM_OUTPUT("MONO2"),
463 SND_SOC_DAPM_MIXER("Out3 Left + Right", -1, 0, 0, NULL, 0),
464 SND_SOC_DAPM_MUX("Out3 Mux", SND_SOC_NOPM, 0, 0, &wm8753_out3_controls),
465 SND_SOC_DAPM_PGA("Out 3", WM8753_PWR3, 4, 0, NULL, 0),
466 SND_SOC_DAPM_OUTPUT("OUT3"),
467 SND_SOC_DAPM_MUX("Out4 Mux", SND_SOC_NOPM, 0, 0, &wm8753_out4_controls),
468 SND_SOC_DAPM_PGA("Out 4", WM8753_PWR3, 3, 0, NULL, 0),
469 SND_SOC_DAPM_OUTPUT("OUT4"),
470 SND_SOC_DAPM_MIXER("Playback Mixer", WM8753_PWR4, 3, 0,
471 &wm8753_record_mixer_controls[0],
472 ARRAY_SIZE(wm8753_record_mixer_controls)),
473 SND_SOC_DAPM_ADC("Left ADC", "Left Capture", WM8753_PWR2, 3, 0),
474 SND_SOC_DAPM_ADC("Right ADC", "Right Capture", WM8753_PWR2, 2, 0),
475 SND_SOC_DAPM_MUX("Capture Left Mixer", SND_SOC_NOPM, 0, 0,
476 &wm8753_adc_mono_controls),
477 SND_SOC_DAPM_MUX("Capture Right Mixer", SND_SOC_NOPM, 0, 0,
478 &wm8753_adc_mono_controls),
479 SND_SOC_DAPM_MUX("Capture Left Mux", SND_SOC_NOPM, 0, 0,
480 &wm8753_adc_left_controls),
481 SND_SOC_DAPM_MUX("Capture Right Mux", SND_SOC_NOPM, 0, 0,
482 &wm8753_adc_right_controls),
483 SND_SOC_DAPM_MUX("Mic Sidetone Mux", SND_SOC_NOPM, 0, 0,
484 &wm8753_mic_mux_controls),
485 SND_SOC_DAPM_PGA("Left Capture Volume", WM8753_PWR2, 5, 0, NULL, 0),
486 SND_SOC_DAPM_PGA("Right Capture Volume", WM8753_PWR2, 4, 0, NULL, 0),
487 SND_SOC_DAPM_MIXER("ALC Mixer", WM8753_PWR2, 6, 0,
488 &wm8753_alc_mixer_controls[0], ARRAY_SIZE(wm8753_alc_mixer_controls)),
489 SND_SOC_DAPM_MUX("Line Left Mux", SND_SOC_NOPM, 0, 0,
490 &wm8753_line_left_controls),
491 SND_SOC_DAPM_MUX("Line Right Mux", SND_SOC_NOPM, 0, 0,
492 &wm8753_line_right_controls),
493 SND_SOC_DAPM_MUX("Line Mono Mux", SND_SOC_NOPM, 0, 0,
494 &wm8753_line_mono_controls),
495 SND_SOC_DAPM_MUX("Line Mixer", WM8753_PWR2, 0, 0,
496 &wm8753_line_mux_mix_controls),
497 SND_SOC_DAPM_MUX("Rx Mixer", WM8753_PWR2, 1, 0,
498 &wm8753_rx_mux_mix_controls),
499 SND_SOC_DAPM_PGA("Mic 1 Volume", WM8753_PWR2, 8, 0, NULL, 0),
500 SND_SOC_DAPM_PGA("Mic 2 Volume", WM8753_PWR2, 7, 0, NULL, 0),
501 SND_SOC_DAPM_MUX("Mic Selection Mux", SND_SOC_NOPM, 0, 0,
502 &wm8753_mic_sel_mux_controls),
503 SND_SOC_DAPM_INPUT("LINE1"),
504 SND_SOC_DAPM_INPUT("LINE2"),
505 SND_SOC_DAPM_INPUT("RXP"),
506 SND_SOC_DAPM_INPUT("RXN"),
507 SND_SOC_DAPM_INPUT("ACIN"),
508 SND_SOC_DAPM_OUTPUT("ACOP"),
509 SND_SOC_DAPM_INPUT("MIC1N"),
510 SND_SOC_DAPM_INPUT("MIC1"),
511 SND_SOC_DAPM_INPUT("MIC2N"),
512 SND_SOC_DAPM_INPUT("MIC2"),
513 SND_SOC_DAPM_VMID("VREF"),
514 };
515
516 static const struct snd_soc_dapm_route audio_map[] = {
517 /* left mixer */
518 {"Left Mixer", "Left Playback Switch", "Left DAC"},
519 {"Left Mixer", "Voice Playback Switch", "Voice DAC"},
520 {"Left Mixer", "Sidetone Playback Switch", "Mic Sidetone Mux"},
521 {"Left Mixer", "Bypass Playback Switch", "Line Left Mux"},
522
523 /* right mixer */
524 {"Right Mixer", "Right Playback Switch", "Right DAC"},
525 {"Right Mixer", "Voice Playback Switch", "Voice DAC"},
526 {"Right Mixer", "Sidetone Playback Switch", "Mic Sidetone Mux"},
527 {"Right Mixer", "Bypass Playback Switch", "Line Right Mux"},
528
529 /* mono mixer */
530 {"Mono Mixer", "Voice Playback Switch", "Voice DAC"},
531 {"Mono Mixer", "Left Playback Switch", "Left DAC"},
532 {"Mono Mixer", "Right Playback Switch", "Right DAC"},
533 {"Mono Mixer", "Sidetone Playback Switch", "Mic Sidetone Mux"},
534 {"Mono Mixer", "Bypass Playback Switch", "Line Mono Mux"},
535
536 /* left out */
537 {"Left Out 1", NULL, "Left Mixer"},
538 {"Left Out 2", NULL, "Left Mixer"},
539 {"LOUT1", NULL, "Left Out 1"},
540 {"LOUT2", NULL, "Left Out 2"},
541
542 /* right out */
543 {"Right Out 1", NULL, "Right Mixer"},
544 {"Right Out 2", NULL, "Right Mixer"},
545 {"ROUT1", NULL, "Right Out 1"},
546 {"ROUT2", NULL, "Right Out 2"},
547
548 /* mono 1 out */
549 {"Mono Out 1", NULL, "Mono Mixer"},
550 {"MONO1", NULL, "Mono Out 1"},
551
552 /* mono 2 out */
553 {"Mono 2 Mux", "Left + Right", "Out3 Left + Right"},
554 {"Mono 2 Mux", "Inverted Mono 1", "MONO1"},
555 {"Mono 2 Mux", "Left", "Left Mixer"},
556 {"Mono 2 Mux", "Right", "Right Mixer"},
557 {"Mono Out 2", NULL, "Mono 2 Mux"},
558 {"MONO2", NULL, "Mono Out 2"},
559
560 /* out 3 */
561 {"Out3 Left + Right", NULL, "Left Mixer"},
562 {"Out3 Left + Right", NULL, "Right Mixer"},
563 {"Out3 Mux", "VREF", "VREF"},
564 {"Out3 Mux", "Left + Right", "Out3 Left + Right"},
565 {"Out3 Mux", "ROUT2", "ROUT2"},
566 {"Out 3", NULL, "Out3 Mux"},
567 {"OUT3", NULL, "Out 3"},
568
569 /* out 4 */
570 {"Out4 Mux", "VREF", "VREF"},
571 {"Out4 Mux", "Capture ST", "Playback Mixer"},
572 {"Out4 Mux", "LOUT2", "LOUT2"},
573 {"Out 4", NULL, "Out4 Mux"},
574 {"OUT4", NULL, "Out 4"},
575
576 /* record mixer */
577 {"Playback Mixer", "Left Capture Switch", "Left Mixer"},
578 {"Playback Mixer", "Voice Capture Switch", "Mono Mixer"},
579 {"Playback Mixer", "Right Capture Switch", "Right Mixer"},
580
581 /* Mic/SideTone Mux */
582 {"Mic Sidetone Mux", "Left PGA", "Left Capture Volume"},
583 {"Mic Sidetone Mux", "Right PGA", "Right Capture Volume"},
584 {"Mic Sidetone Mux", "Mic 1", "Mic 1 Volume"},
585 {"Mic Sidetone Mux", "Mic 2", "Mic 2 Volume"},
586
587 /* Capture Left Mux */
588 {"Capture Left Mux", "PGA", "Left Capture Volume"},
589 {"Capture Left Mux", "Line or RXP-RXN", "Line Left Mux"},
590 {"Capture Left Mux", "Line", "LINE1"},
591
592 /* Capture Right Mux */
593 {"Capture Right Mux", "PGA", "Right Capture Volume"},
594 {"Capture Right Mux", "Line or RXP-RXN", "Line Right Mux"},
595 {"Capture Right Mux", "Sidetone", "Playback Mixer"},
596
597 /* Mono Capture mixer-mux */
598 {"Capture Right Mixer", "Stereo", "Capture Right Mux"},
599 {"Capture Left Mixer", "Stereo", "Capture Left Mux"},
600 {"Capture Left Mixer", "Analogue Mix Left", "Capture Left Mux"},
601 {"Capture Left Mixer", "Analogue Mix Left", "Capture Right Mux"},
602 {"Capture Right Mixer", "Analogue Mix Right", "Capture Left Mux"},
603 {"Capture Right Mixer", "Analogue Mix Right", "Capture Right Mux"},
604 {"Capture Left Mixer", "Digital Mono Mix", "Capture Left Mux"},
605 {"Capture Left Mixer", "Digital Mono Mix", "Capture Right Mux"},
606 {"Capture Right Mixer", "Digital Mono Mix", "Capture Left Mux"},
607 {"Capture Right Mixer", "Digital Mono Mix", "Capture Right Mux"},
608
609 /* ADC */
610 {"Left ADC", NULL, "Capture Left Mixer"},
611 {"Right ADC", NULL, "Capture Right Mixer"},
612
613 /* Left Capture Volume */
614 {"Left Capture Volume", NULL, "ACIN"},
615
616 /* Right Capture Volume */
617 {"Right Capture Volume", NULL, "Mic 2 Volume"},
618
619 /* ALC Mixer */
620 {"ALC Mixer", "Line Capture Switch", "Line Mixer"},
621 {"ALC Mixer", "Mic2 Capture Switch", "Mic 2 Volume"},
622 {"ALC Mixer", "Mic1 Capture Switch", "Mic 1 Volume"},
623 {"ALC Mixer", "Rx Capture Switch", "Rx Mixer"},
624
625 /* Line Left Mux */
626 {"Line Left Mux", "Line 1", "LINE1"},
627 {"Line Left Mux", "Rx Mix", "Rx Mixer"},
628
629 /* Line Right Mux */
630 {"Line Right Mux", "Line 2", "LINE2"},
631 {"Line Right Mux", "Rx Mix", "Rx Mixer"},
632
633 /* Line Mono Mux */
634 {"Line Mono Mux", "Line Mix", "Line Mixer"},
635 {"Line Mono Mux", "Rx Mix", "Rx Mixer"},
636
637 /* Line Mixer/Mux */
638 {"Line Mixer", "Line 1 + 2", "LINE1"},
639 {"Line Mixer", "Line 1 - 2", "LINE1"},
640 {"Line Mixer", "Line 1 + 2", "LINE2"},
641 {"Line Mixer", "Line 1 - 2", "LINE2"},
642 {"Line Mixer", "Line 1", "LINE1"},
643 {"Line Mixer", "Line 2", "LINE2"},
644
645 /* Rx Mixer/Mux */
646 {"Rx Mixer", "RXP - RXN", "RXP"},
647 {"Rx Mixer", "RXP + RXN", "RXP"},
648 {"Rx Mixer", "RXP - RXN", "RXN"},
649 {"Rx Mixer", "RXP + RXN", "RXN"},
650 {"Rx Mixer", "RXP", "RXP"},
651 {"Rx Mixer", "RXN", "RXN"},
652
653 /* Mic 1 Volume */
654 {"Mic 1 Volume", NULL, "MIC1N"},
655 {"Mic 1 Volume", NULL, "Mic Selection Mux"},
656
657 /* Mic 2 Volume */
658 {"Mic 2 Volume", NULL, "MIC2N"},
659 {"Mic 2 Volume", NULL, "MIC2"},
660
661 /* Mic Selector Mux */
662 {"Mic Selection Mux", "Mic 1", "MIC1"},
663 {"Mic Selection Mux", "Mic 2", "MIC2N"},
664 {"Mic Selection Mux", "Mic 3", "MIC2"},
665
666 /* ACOP */
667 {"ACOP", NULL, "ALC Mixer"},
668 };
669
670 static int wm8753_add_widgets(struct snd_soc_codec *codec)
671 {
672 snd_soc_dapm_new_controls(codec, wm8753_dapm_widgets,
673 ARRAY_SIZE(wm8753_dapm_widgets));
674
675 snd_soc_dapm_add_routes(codec, audio_map, ARRAY_SIZE(audio_map));
676
677 return 0;
678 }
679
680 /* PLL divisors */
681 struct _pll_div {
682 u32 div2:1;
683 u32 n:4;
684 u32 k:24;
685 };
686
687 /* The size in bits of the pll divide multiplied by 10
688 * to allow rounding later */
689 #define FIXED_PLL_SIZE ((1 << 22) * 10)
690
691 static void pll_factors(struct _pll_div *pll_div, unsigned int target,
692 unsigned int source)
693 {
694 u64 Kpart;
695 unsigned int K, Ndiv, Nmod;
696
697 Ndiv = target / source;
698 if (Ndiv < 6) {
699 source >>= 1;
700 pll_div->div2 = 1;
701 Ndiv = target / source;
702 } else
703 pll_div->div2 = 0;
704
705 if ((Ndiv < 6) || (Ndiv > 12))
706 printk(KERN_WARNING
707 "wm8753: unsupported N = %u\n", Ndiv);
708
709 pll_div->n = Ndiv;
710 Nmod = target % source;
711 Kpart = FIXED_PLL_SIZE * (long long)Nmod;
712
713 do_div(Kpart, source);
714
715 K = Kpart & 0xFFFFFFFF;
716
717 /* Check if we need to round */
718 if ((K % 10) >= 5)
719 K += 5;
720
721 /* Move down to proper range now rounding is done */
722 K /= 10;
723
724 pll_div->k = K;
725 }
726
727 static int wm8753_set_dai_pll(struct snd_soc_dai *codec_dai, int pll_id,
728 int source, unsigned int freq_in, unsigned int freq_out)
729 {
730 u16 reg, enable;
731 int offset;
732 struct snd_soc_codec *codec = codec_dai->codec;
733
734 if (pll_id < WM8753_PLL1 || pll_id > WM8753_PLL2)
735 return -ENODEV;
736
737 if (pll_id == WM8753_PLL1) {
738 offset = 0;
739 enable = 0x10;
740 reg = wm8753_read_reg_cache(codec, WM8753_CLOCK) & 0xffef;
741 } else {
742 offset = 4;
743 enable = 0x8;
744 reg = wm8753_read_reg_cache(codec, WM8753_CLOCK) & 0xfff7;
745 }
746
747 if (!freq_in || !freq_out) {
748 /* disable PLL */
749 wm8753_write(codec, WM8753_PLL1CTL1 + offset, 0x0026);
750 wm8753_write(codec, WM8753_CLOCK, reg);
751 return 0;
752 } else {
753 u16 value = 0;
754 struct _pll_div pll_div;
755
756 pll_factors(&pll_div, freq_out * 8, freq_in);
757
758 /* set up N and K PLL divisor ratios */
759 /* bits 8:5 = PLL_N, bits 3:0 = PLL_K[21:18] */
760 value = (pll_div.n << 5) + ((pll_div.k & 0x3c0000) >> 18);
761 wm8753_write(codec, WM8753_PLL1CTL2 + offset, value);
762
763 /* bits 8:0 = PLL_K[17:9] */
764 value = (pll_div.k & 0x03fe00) >> 9;
765 wm8753_write(codec, WM8753_PLL1CTL3 + offset, value);
766
767 /* bits 8:0 = PLL_K[8:0] */
768 value = pll_div.k & 0x0001ff;
769 wm8753_write(codec, WM8753_PLL1CTL4 + offset, value);
770
771 /* set PLL as input and enable */
772 wm8753_write(codec, WM8753_PLL1CTL1 + offset, 0x0027 |
773 (pll_div.div2 << 3));
774 wm8753_write(codec, WM8753_CLOCK, reg | enable);
775 }
776 return 0;
777 }
778
779 struct _coeff_div {
780 u32 mclk;
781 u32 rate;
782 u8 sr:5;
783 u8 usb:1;
784 };
785
786 /* codec hifi mclk (after PLL) clock divider coefficients */
787 static const struct _coeff_div coeff_div[] = {
788 /* 8k */
789 {12288000, 8000, 0x6, 0x0},
790 {11289600, 8000, 0x16, 0x0},
791 {18432000, 8000, 0x7, 0x0},
792 {16934400, 8000, 0x17, 0x0},
793 {12000000, 8000, 0x6, 0x1},
794
795 /* 11.025k */
796 {11289600, 11025, 0x18, 0x0},
797 {16934400, 11025, 0x19, 0x0},
798 {12000000, 11025, 0x19, 0x1},
799
800 /* 16k */
801 {12288000, 16000, 0xa, 0x0},
802 {18432000, 16000, 0xb, 0x0},
803 {12000000, 16000, 0xa, 0x1},
804
805 /* 22.05k */
806 {11289600, 22050, 0x1a, 0x0},
807 {16934400, 22050, 0x1b, 0x0},
808 {12000000, 22050, 0x1b, 0x1},
809
810 /* 32k */
811 {12288000, 32000, 0xc, 0x0},
812 {18432000, 32000, 0xd, 0x0},
813 {12000000, 32000, 0xa, 0x1},
814
815 /* 44.1k */
816 {11289600, 44100, 0x10, 0x0},
817 {16934400, 44100, 0x11, 0x0},
818 {12000000, 44100, 0x11, 0x1},
819
820 /* 48k */
821 {12288000, 48000, 0x0, 0x0},
822 {18432000, 48000, 0x1, 0x0},
823 {12000000, 48000, 0x0, 0x1},
824
825 /* 88.2k */
826 {11289600, 88200, 0x1e, 0x0},
827 {16934400, 88200, 0x1f, 0x0},
828 {12000000, 88200, 0x1f, 0x1},
829
830 /* 96k */
831 {12288000, 96000, 0xe, 0x0},
832 {18432000, 96000, 0xf, 0x0},
833 {12000000, 96000, 0xe, 0x1},
834 };
835
836 static int get_coeff(int mclk, int rate)
837 {
838 int i;
839
840 for (i = 0; i < ARRAY_SIZE(coeff_div); i++) {
841 if (coeff_div[i].rate == rate && coeff_div[i].mclk == mclk)
842 return i;
843 }
844 return -EINVAL;
845 }
846
847 /*
848 * Clock after PLL and dividers
849 */
850 static int wm8753_set_dai_sysclk(struct snd_soc_dai *codec_dai,
851 int clk_id, unsigned int freq, int dir)
852 {
853 struct snd_soc_codec *codec = codec_dai->codec;
854 struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);
855
856 switch (freq) {
857 case 11289600:
858 case 12000000:
859 case 12288000:
860 case 16934400:
861 case 18432000:
862 if (clk_id == WM8753_MCLK) {
863 wm8753->sysclk = freq;
864 return 0;
865 } else if (clk_id == WM8753_PCMCLK) {
866 wm8753->pcmclk = freq;
867 return 0;
868 }
869 break;
870 }
871 return -EINVAL;
872 }
873
874 /*
875 * Set's ADC and Voice DAC format.
876 */
877 static int wm8753_vdac_adc_set_dai_fmt(struct snd_soc_dai *codec_dai,
878 unsigned int fmt)
879 {
880 struct snd_soc_codec *codec = codec_dai->codec;
881 u16 voice = wm8753_read_reg_cache(codec, WM8753_PCM) & 0x01ec;
882
883 /* interface format */
884 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
885 case SND_SOC_DAIFMT_I2S:
886 voice |= 0x0002;
887 break;
888 case SND_SOC_DAIFMT_RIGHT_J:
889 break;
890 case SND_SOC_DAIFMT_LEFT_J:
891 voice |= 0x0001;
892 break;
893 case SND_SOC_DAIFMT_DSP_A:
894 voice |= 0x0003;
895 break;
896 case SND_SOC_DAIFMT_DSP_B:
897 voice |= 0x0013;
898 break;
899 default:
900 return -EINVAL;
901 }
902
903 wm8753_write(codec, WM8753_PCM, voice);
904 return 0;
905 }
906
907 /*
908 * Set PCM DAI bit size and sample rate.
909 */
910 static int wm8753_pcm_hw_params(struct snd_pcm_substream *substream,
911 struct snd_pcm_hw_params *params,
912 struct snd_soc_dai *dai)
913 {
914 struct snd_soc_pcm_runtime *rtd = substream->private_data;
915 struct snd_soc_device *socdev = rtd->socdev;
916 struct snd_soc_codec *codec = socdev->card->codec;
917 struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);
918 u16 voice = wm8753_read_reg_cache(codec, WM8753_PCM) & 0x01f3;
919 u16 srate = wm8753_read_reg_cache(codec, WM8753_SRATE1) & 0x017f;
920
921 /* bit size */
922 switch (params_format(params)) {
923 case SNDRV_PCM_FORMAT_S16_LE:
924 break;
925 case SNDRV_PCM_FORMAT_S20_3LE:
926 voice |= 0x0004;
927 break;
928 case SNDRV_PCM_FORMAT_S24_LE:
929 voice |= 0x0008;
930 break;
931 case SNDRV_PCM_FORMAT_S32_LE:
932 voice |= 0x000c;
933 break;
934 }
935
936 /* sample rate */
937 if (params_rate(params) * 384 == wm8753->pcmclk)
938 srate |= 0x80;
939 wm8753_write(codec, WM8753_SRATE1, srate);
940
941 wm8753_write(codec, WM8753_PCM, voice);
942 return 0;
943 }
944
945 /*
946 * Set's PCM dai fmt and BCLK.
947 */
948 static int wm8753_pcm_set_dai_fmt(struct snd_soc_dai *codec_dai,
949 unsigned int fmt)
950 {
951 struct snd_soc_codec *codec = codec_dai->codec;
952 u16 voice, ioctl;
953
954 voice = wm8753_read_reg_cache(codec, WM8753_PCM) & 0x011f;
955 ioctl = wm8753_read_reg_cache(codec, WM8753_IOCTL) & 0x015d;
956
957 /* set master/slave audio interface */
958 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
959 case SND_SOC_DAIFMT_CBS_CFS:
960 break;
961 case SND_SOC_DAIFMT_CBM_CFM:
962 ioctl |= 0x2;
963 case SND_SOC_DAIFMT_CBM_CFS:
964 voice |= 0x0040;
965 break;
966 default:
967 return -EINVAL;
968 }
969
970 /* clock inversion */
971 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
972 case SND_SOC_DAIFMT_DSP_A:
973 case SND_SOC_DAIFMT_DSP_B:
974 /* frame inversion not valid for DSP modes */
975 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
976 case SND_SOC_DAIFMT_NB_NF:
977 break;
978 case SND_SOC_DAIFMT_IB_NF:
979 voice |= 0x0080;
980 break;
981 default:
982 return -EINVAL;
983 }
984 break;
985 case SND_SOC_DAIFMT_I2S:
986 case SND_SOC_DAIFMT_RIGHT_J:
987 case SND_SOC_DAIFMT_LEFT_J:
988 voice &= ~0x0010;
989 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
990 case SND_SOC_DAIFMT_NB_NF:
991 break;
992 case SND_SOC_DAIFMT_IB_IF:
993 voice |= 0x0090;
994 break;
995 case SND_SOC_DAIFMT_IB_NF:
996 voice |= 0x0080;
997 break;
998 case SND_SOC_DAIFMT_NB_IF:
999 voice |= 0x0010;
1000 break;
1001 default:
1002 return -EINVAL;
1003 }
1004 break;
1005 default:
1006 return -EINVAL;
1007 }
1008
1009 wm8753_write(codec, WM8753_PCM, voice);
1010 wm8753_write(codec, WM8753_IOCTL, ioctl);
1011 return 0;
1012 }
1013
1014 static int wm8753_set_dai_clkdiv(struct snd_soc_dai *codec_dai,
1015 int div_id, int div)
1016 {
1017 struct snd_soc_codec *codec = codec_dai->codec;
1018 u16 reg;
1019
1020 switch (div_id) {
1021 case WM8753_PCMDIV:
1022 reg = wm8753_read_reg_cache(codec, WM8753_CLOCK) & 0x003f;
1023 wm8753_write(codec, WM8753_CLOCK, reg | div);
1024 break;
1025 case WM8753_BCLKDIV:
1026 reg = wm8753_read_reg_cache(codec, WM8753_SRATE2) & 0x01c7;
1027 wm8753_write(codec, WM8753_SRATE2, reg | div);
1028 break;
1029 case WM8753_VXCLKDIV:
1030 reg = wm8753_read_reg_cache(codec, WM8753_SRATE2) & 0x003f;
1031 wm8753_write(codec, WM8753_SRATE2, reg | div);
1032 break;
1033 default:
1034 return -EINVAL;
1035 }
1036 return 0;
1037 }
1038
1039 /*
1040 * Set's HiFi DAC format.
1041 */
1042 static int wm8753_hdac_set_dai_fmt(struct snd_soc_dai *codec_dai,
1043 unsigned int fmt)
1044 {
1045 struct snd_soc_codec *codec = codec_dai->codec;
1046 u16 hifi = wm8753_read_reg_cache(codec, WM8753_HIFI) & 0x01e0;
1047
1048 /* interface format */
1049 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
1050 case SND_SOC_DAIFMT_I2S:
1051 hifi |= 0x0002;
1052 break;
1053 case SND_SOC_DAIFMT_RIGHT_J:
1054 break;
1055 case SND_SOC_DAIFMT_LEFT_J:
1056 hifi |= 0x0001;
1057 break;
1058 case SND_SOC_DAIFMT_DSP_A:
1059 hifi |= 0x0003;
1060 break;
1061 case SND_SOC_DAIFMT_DSP_B:
1062 hifi |= 0x0013;
1063 break;
1064 default:
1065 return -EINVAL;
1066 }
1067
1068 wm8753_write(codec, WM8753_HIFI, hifi);
1069 return 0;
1070 }
1071
1072 /*
1073 * Set's I2S DAI format.
1074 */
1075 static int wm8753_i2s_set_dai_fmt(struct snd_soc_dai *codec_dai,
1076 unsigned int fmt)
1077 {
1078 struct snd_soc_codec *codec = codec_dai->codec;
1079 u16 ioctl, hifi;
1080
1081 hifi = wm8753_read_reg_cache(codec, WM8753_HIFI) & 0x011f;
1082 ioctl = wm8753_read_reg_cache(codec, WM8753_IOCTL) & 0x00ae;
1083
1084 /* set master/slave audio interface */
1085 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
1086 case SND_SOC_DAIFMT_CBS_CFS:
1087 break;
1088 case SND_SOC_DAIFMT_CBM_CFM:
1089 ioctl |= 0x1;
1090 case SND_SOC_DAIFMT_CBM_CFS:
1091 hifi |= 0x0040;
1092 break;
1093 default:
1094 return -EINVAL;
1095 }
1096
1097 /* clock inversion */
1098 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
1099 case SND_SOC_DAIFMT_DSP_A:
1100 case SND_SOC_DAIFMT_DSP_B:
1101 /* frame inversion not valid for DSP modes */
1102 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
1103 case SND_SOC_DAIFMT_NB_NF:
1104 break;
1105 case SND_SOC_DAIFMT_IB_NF:
1106 hifi |= 0x0080;
1107 break;
1108 default:
1109 return -EINVAL;
1110 }
1111 break;
1112 case SND_SOC_DAIFMT_I2S:
1113 case SND_SOC_DAIFMT_RIGHT_J:
1114 case SND_SOC_DAIFMT_LEFT_J:
1115 hifi &= ~0x0010;
1116 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
1117 case SND_SOC_DAIFMT_NB_NF:
1118 break;
1119 case SND_SOC_DAIFMT_IB_IF:
1120 hifi |= 0x0090;
1121 break;
1122 case SND_SOC_DAIFMT_IB_NF:
1123 hifi |= 0x0080;
1124 break;
1125 case SND_SOC_DAIFMT_NB_IF:
1126 hifi |= 0x0010;
1127 break;
1128 default:
1129 return -EINVAL;
1130 }
1131 break;
1132 default:
1133 return -EINVAL;
1134 }
1135
1136 wm8753_write(codec, WM8753_HIFI, hifi);
1137 wm8753_write(codec, WM8753_IOCTL, ioctl);
1138 return 0;
1139 }
1140
1141 /*
1142 * Set PCM DAI bit size and sample rate.
1143 */
1144 static int wm8753_i2s_hw_params(struct snd_pcm_substream *substream,
1145 struct snd_pcm_hw_params *params,
1146 struct snd_soc_dai *dai)
1147 {
1148 struct snd_soc_pcm_runtime *rtd = substream->private_data;
1149 struct snd_soc_device *socdev = rtd->socdev;
1150 struct snd_soc_codec *codec = socdev->card->codec;
1151 struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);
1152 u16 srate = wm8753_read_reg_cache(codec, WM8753_SRATE1) & 0x01c0;
1153 u16 hifi = wm8753_read_reg_cache(codec, WM8753_HIFI) & 0x01f3;
1154 int coeff;
1155
1156 /* is digital filter coefficient valid ? */
1157 coeff = get_coeff(wm8753->sysclk, params_rate(params));
1158 if (coeff < 0) {
1159 printk(KERN_ERR "wm8753 invalid MCLK or rate\n");
1160 return coeff;
1161 }
1162 wm8753_write(codec, WM8753_SRATE1, srate | (coeff_div[coeff].sr << 1) |
1163 coeff_div[coeff].usb);
1164
1165 /* bit size */
1166 switch (params_format(params)) {
1167 case SNDRV_PCM_FORMAT_S16_LE:
1168 break;
1169 case SNDRV_PCM_FORMAT_S20_3LE:
1170 hifi |= 0x0004;
1171 break;
1172 case SNDRV_PCM_FORMAT_S24_LE:
1173 hifi |= 0x0008;
1174 break;
1175 case SNDRV_PCM_FORMAT_S32_LE:
1176 hifi |= 0x000c;
1177 break;
1178 }
1179
1180 wm8753_write(codec, WM8753_HIFI, hifi);
1181 return 0;
1182 }
1183
1184 static int wm8753_mode1v_set_dai_fmt(struct snd_soc_dai *codec_dai,
1185 unsigned int fmt)
1186 {
1187 struct snd_soc_codec *codec = codec_dai->codec;
1188 u16 clock;
1189
1190 /* set clk source as pcmclk */
1191 clock = wm8753_read_reg_cache(codec, WM8753_CLOCK) & 0xfffb;
1192 wm8753_write(codec, WM8753_CLOCK, clock);
1193
1194 if (wm8753_vdac_adc_set_dai_fmt(codec_dai, fmt) < 0)
1195 return -EINVAL;
1196 return wm8753_pcm_set_dai_fmt(codec_dai, fmt);
1197 }
1198
1199 static int wm8753_mode1h_set_dai_fmt(struct snd_soc_dai *codec_dai,
1200 unsigned int fmt)
1201 {
1202 if (wm8753_hdac_set_dai_fmt(codec_dai, fmt) < 0)
1203 return -EINVAL;
1204 return wm8753_i2s_set_dai_fmt(codec_dai, fmt);
1205 }
1206
1207 static int wm8753_mode2_set_dai_fmt(struct snd_soc_dai *codec_dai,
1208 unsigned int fmt)
1209 {
1210 struct snd_soc_codec *codec = codec_dai->codec;
1211 u16 clock;
1212
1213 /* set clk source as pcmclk */
1214 clock = wm8753_read_reg_cache(codec, WM8753_CLOCK) & 0xfffb;
1215 wm8753_write(codec, WM8753_CLOCK, clock);
1216
1217 if (wm8753_vdac_adc_set_dai_fmt(codec_dai, fmt) < 0)
1218 return -EINVAL;
1219 return wm8753_i2s_set_dai_fmt(codec_dai, fmt);
1220 }
1221
1222 static int wm8753_mode3_4_set_dai_fmt(struct snd_soc_dai *codec_dai,
1223 unsigned int fmt)
1224 {
1225 struct snd_soc_codec *codec = codec_dai->codec;
1226 u16 clock;
1227
1228 /* set clk source as mclk */
1229 clock = wm8753_read_reg_cache(codec, WM8753_CLOCK) & 0xfffb;
1230 wm8753_write(codec, WM8753_CLOCK, clock | 0x4);
1231
1232 if (wm8753_hdac_set_dai_fmt(codec_dai, fmt) < 0)
1233 return -EINVAL;
1234 if (wm8753_vdac_adc_set_dai_fmt(codec_dai, fmt) < 0)
1235 return -EINVAL;
1236 return wm8753_i2s_set_dai_fmt(codec_dai, fmt);
1237 }
1238
1239 static int wm8753_mute(struct snd_soc_dai *dai, int mute)
1240 {
1241 struct snd_soc_codec *codec = dai->codec;
1242 u16 mute_reg = wm8753_read_reg_cache(codec, WM8753_DAC) & 0xfff7;
1243
1244 /* the digital mute covers the HiFi and Voice DAC's on the WM8753.
1245 * make sure we check if they are not both active when we mute */
1246 if (mute && dai->id == 1) {
1247 if (!wm8753_dai[WM8753_DAI_VOICE].playback.active ||
1248 !wm8753_dai[WM8753_DAI_HIFI].playback.active)
1249 wm8753_write(codec, WM8753_DAC, mute_reg | 0x8);
1250 } else {
1251 if (mute)
1252 wm8753_write(codec, WM8753_DAC, mute_reg | 0x8);
1253 else
1254 wm8753_write(codec, WM8753_DAC, mute_reg);
1255 }
1256
1257 return 0;
1258 }
1259
1260 static int wm8753_set_bias_level(struct snd_soc_codec *codec,
1261 enum snd_soc_bias_level level)
1262 {
1263 u16 pwr_reg = wm8753_read_reg_cache(codec, WM8753_PWR1) & 0xfe3e;
1264
1265 switch (level) {
1266 case SND_SOC_BIAS_ON:
1267 /* set vmid to 50k and unmute dac */
1268 wm8753_write(codec, WM8753_PWR1, pwr_reg | 0x00c0);
1269 break;
1270 case SND_SOC_BIAS_PREPARE:
1271 /* set vmid to 5k for quick power up */
1272 wm8753_write(codec, WM8753_PWR1, pwr_reg | 0x01c1);
1273 break;
1274 case SND_SOC_BIAS_STANDBY:
1275 /* mute dac and set vmid to 500k, enable VREF */
1276 wm8753_write(codec, WM8753_PWR1, pwr_reg | 0x0141);
1277 break;
1278 case SND_SOC_BIAS_OFF:
1279 wm8753_write(codec, WM8753_PWR1, 0x0001);
1280 break;
1281 }
1282 codec->bias_level = level;
1283 return 0;
1284 }
1285
1286 #define WM8753_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\
1287 SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 |\
1288 SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 |\
1289 SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000)
1290
1291 #define WM8753_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
1292 SNDRV_PCM_FMTBIT_S24_LE)
1293
1294 /*
1295 * The WM8753 supports upto 4 different and mutually exclusive DAI
1296 * configurations. This gives 2 PCM's available for use, hifi and voice.
1297 * NOTE: The Voice PCM cannot play or capture audio to the CPU as it's DAI
1298 * is connected between the wm8753 and a BT codec or GSM modem.
1299 *
1300 * 1. Voice over PCM DAI - HIFI DAC over HIFI DAI
1301 * 2. Voice over HIFI DAI - HIFI disabled
1302 * 3. Voice disabled - HIFI over HIFI
1303 * 4. Voice disabled - HIFI over HIFI, uses voice DAI LRC for capture
1304 */
1305 static struct snd_soc_dai_ops wm8753_dai_ops_hifi_mode1 = {
1306 .hw_params = wm8753_i2s_hw_params,
1307 .digital_mute = wm8753_mute,
1308 .set_fmt = wm8753_mode1h_set_dai_fmt,
1309 .set_clkdiv = wm8753_set_dai_clkdiv,
1310 .set_pll = wm8753_set_dai_pll,
1311 .set_sysclk = wm8753_set_dai_sysclk,
1312 };
1313
1314 static struct snd_soc_dai_ops wm8753_dai_ops_voice_mode1 = {
1315 .hw_params = wm8753_pcm_hw_params,
1316 .digital_mute = wm8753_mute,
1317 .set_fmt = wm8753_mode1v_set_dai_fmt,
1318 .set_clkdiv = wm8753_set_dai_clkdiv,
1319 .set_pll = wm8753_set_dai_pll,
1320 .set_sysclk = wm8753_set_dai_sysclk,
1321 };
1322
1323 static struct snd_soc_dai_ops wm8753_dai_ops_voice_mode2 = {
1324 .hw_params = wm8753_pcm_hw_params,
1325 .digital_mute = wm8753_mute,
1326 .set_fmt = wm8753_mode2_set_dai_fmt,
1327 .set_clkdiv = wm8753_set_dai_clkdiv,
1328 .set_pll = wm8753_set_dai_pll,
1329 .set_sysclk = wm8753_set_dai_sysclk,
1330 };
1331
1332 static struct snd_soc_dai_ops wm8753_dai_ops_hifi_mode3 = {
1333 .hw_params = wm8753_i2s_hw_params,
1334 .digital_mute = wm8753_mute,
1335 .set_fmt = wm8753_mode3_4_set_dai_fmt,
1336 .set_clkdiv = wm8753_set_dai_clkdiv,
1337 .set_pll = wm8753_set_dai_pll,
1338 .set_sysclk = wm8753_set_dai_sysclk,
1339 };
1340
1341 static struct snd_soc_dai_ops wm8753_dai_ops_hifi_mode4 = {
1342 .hw_params = wm8753_i2s_hw_params,
1343 .digital_mute = wm8753_mute,
1344 .set_fmt = wm8753_mode3_4_set_dai_fmt,
1345 .set_clkdiv = wm8753_set_dai_clkdiv,
1346 .set_pll = wm8753_set_dai_pll,
1347 .set_sysclk = wm8753_set_dai_sysclk,
1348 };
1349
1350 static const struct snd_soc_dai wm8753_all_dai[] = {
1351 /* DAI HiFi mode 1 */
1352 { .name = "WM8753 HiFi",
1353 .id = 1,
1354 .playback = {
1355 .stream_name = "HiFi Playback",
1356 .channels_min = 1,
1357 .channels_max = 2,
1358 .rates = WM8753_RATES,
1359 .formats = WM8753_FORMATS},
1360 .capture = { /* dummy for fast DAI switching */
1361 .stream_name = "Capture",
1362 .channels_min = 1,
1363 .channels_max = 2,
1364 .rates = WM8753_RATES,
1365 .formats = WM8753_FORMATS},
1366 .ops = &wm8753_dai_ops_hifi_mode1,
1367 },
1368 /* DAI Voice mode 1 */
1369 { .name = "WM8753 Voice",
1370 .id = 1,
1371 .playback = {
1372 .stream_name = "Voice Playback",
1373 .channels_min = 1,
1374 .channels_max = 1,
1375 .rates = WM8753_RATES,
1376 .formats = WM8753_FORMATS,},
1377 .capture = {
1378 .stream_name = "Capture",
1379 .channels_min = 1,
1380 .channels_max = 2,
1381 .rates = WM8753_RATES,
1382 .formats = WM8753_FORMATS,},
1383 .ops = &wm8753_dai_ops_voice_mode1,
1384 },
1385 /* DAI HiFi mode 2 - dummy */
1386 { .name = "WM8753 HiFi",
1387 .id = 2,
1388 },
1389 /* DAI Voice mode 2 */
1390 { .name = "WM8753 Voice",
1391 .id = 2,
1392 .playback = {
1393 .stream_name = "Voice Playback",
1394 .channels_min = 1,
1395 .channels_max = 1,
1396 .rates = WM8753_RATES,
1397 .formats = WM8753_FORMATS,},
1398 .capture = {
1399 .stream_name = "Capture",
1400 .channels_min = 1,
1401 .channels_max = 2,
1402 .rates = WM8753_RATES,
1403 .formats = WM8753_FORMATS,},
1404 .ops = &wm8753_dai_ops_voice_mode2,
1405 },
1406 /* DAI HiFi mode 3 */
1407 { .name = "WM8753 HiFi",
1408 .id = 3,
1409 .playback = {
1410 .stream_name = "HiFi Playback",
1411 .channels_min = 1,
1412 .channels_max = 2,
1413 .rates = WM8753_RATES,
1414 .formats = WM8753_FORMATS,},
1415 .capture = {
1416 .stream_name = "Capture",
1417 .channels_min = 1,
1418 .channels_max = 2,
1419 .rates = WM8753_RATES,
1420 .formats = WM8753_FORMATS,},
1421 .ops = &wm8753_dai_ops_hifi_mode3,
1422 },
1423 /* DAI Voice mode 3 - dummy */
1424 { .name = "WM8753 Voice",
1425 .id = 3,
1426 },
1427 /* DAI HiFi mode 4 */
1428 { .name = "WM8753 HiFi",
1429 .id = 4,
1430 .playback = {
1431 .stream_name = "HiFi Playback",
1432 .channels_min = 1,
1433 .channels_max = 2,
1434 .rates = WM8753_RATES,
1435 .formats = WM8753_FORMATS,},
1436 .capture = {
1437 .stream_name = "Capture",
1438 .channels_min = 1,
1439 .channels_max = 2,
1440 .rates = WM8753_RATES,
1441 .formats = WM8753_FORMATS,},
1442 .ops = &wm8753_dai_ops_hifi_mode4,
1443 },
1444 /* DAI Voice mode 4 - dummy */
1445 { .name = "WM8753 Voice",
1446 .id = 4,
1447 },
1448 };
1449
1450 struct snd_soc_dai wm8753_dai[] = {
1451 {
1452 .name = "WM8753 DAI 0",
1453 },
1454 {
1455 .name = "WM8753 DAI 1",
1456 },
1457 };
1458 EXPORT_SYMBOL_GPL(wm8753_dai);
1459
1460 static void wm8753_set_dai_mode(struct snd_soc_codec *codec, unsigned int mode)
1461 {
1462 if (mode < 4) {
1463 int playback_active, capture_active, codec_active, pop_wait;
1464 void *private_data;
1465 struct list_head list;
1466
1467 playback_active = wm8753_dai[0].playback.active;
1468 capture_active = wm8753_dai[0].capture.active;
1469 codec_active = wm8753_dai[0].active;
1470 private_data = wm8753_dai[0].private_data;
1471 pop_wait = wm8753_dai[0].pop_wait;
1472 list = wm8753_dai[0].list;
1473 wm8753_dai[0] = wm8753_all_dai[mode << 1];
1474 wm8753_dai[0].playback.active = playback_active;
1475 wm8753_dai[0].capture.active = capture_active;
1476 wm8753_dai[0].active = codec_active;
1477 wm8753_dai[0].private_data = private_data;
1478 wm8753_dai[0].pop_wait = pop_wait;
1479 wm8753_dai[0].list = list;
1480
1481 playback_active = wm8753_dai[1].playback.active;
1482 capture_active = wm8753_dai[1].capture.active;
1483 codec_active = wm8753_dai[1].active;
1484 private_data = wm8753_dai[1].private_data;
1485 pop_wait = wm8753_dai[1].pop_wait;
1486 list = wm8753_dai[1].list;
1487 wm8753_dai[1] = wm8753_all_dai[(mode << 1) + 1];
1488 wm8753_dai[1].playback.active = playback_active;
1489 wm8753_dai[1].capture.active = capture_active;
1490 wm8753_dai[1].active = codec_active;
1491 wm8753_dai[1].private_data = private_data;
1492 wm8753_dai[1].pop_wait = pop_wait;
1493 wm8753_dai[1].list = list;
1494 }
1495 wm8753_dai[0].codec = codec;
1496 wm8753_dai[1].codec = codec;
1497 }
1498
1499 static void wm8753_work(struct work_struct *work)
1500 {
1501 struct snd_soc_codec *codec =
1502 container_of(work, struct snd_soc_codec, delayed_work.work);
1503 wm8753_set_bias_level(codec, codec->bias_level);
1504 }
1505
1506 static int wm8753_suspend(struct platform_device *pdev, pm_message_t state)
1507 {
1508 struct snd_soc_device *socdev = platform_get_drvdata(pdev);
1509 struct snd_soc_codec *codec = socdev->card->codec;
1510
1511 wm8753_set_bias_level(codec, SND_SOC_BIAS_OFF);
1512 return 0;
1513 }
1514
1515 static int wm8753_resume(struct platform_device *pdev)
1516 {
1517 struct snd_soc_device *socdev = platform_get_drvdata(pdev);
1518 struct snd_soc_codec *codec = socdev->card->codec;
1519 int i;
1520 u8 data[2];
1521 u16 *cache = codec->reg_cache;
1522
1523 /* Sync reg_cache with the hardware */
1524 for (i = 0; i < ARRAY_SIZE(wm8753_reg); i++) {
1525 if (i + 1 == WM8753_RESET)
1526 continue;
1527
1528 /* No point in writing hardware default values back */
1529 if (cache[i] == wm8753_reg[i])
1530 continue;
1531
1532 data[0] = ((i + 1) << 1) | ((cache[i] >> 8) & 0x0001);
1533 data[1] = cache[i] & 0x00ff;
1534 codec->hw_write(codec->control_data, data, 2);
1535 }
1536
1537 wm8753_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
1538
1539 /* charge wm8753 caps */
1540 if (codec->suspend_bias_level == SND_SOC_BIAS_ON) {
1541 wm8753_set_bias_level(codec, SND_SOC_BIAS_PREPARE);
1542 codec->bias_level = SND_SOC_BIAS_ON;
1543 schedule_delayed_work(&codec->delayed_work,
1544 msecs_to_jiffies(caps_charge));
1545 }
1546
1547 return 0;
1548 }
1549
1550 static struct snd_soc_codec *wm8753_codec;
1551
1552 static int wm8753_probe(struct platform_device *pdev)
1553 {
1554 struct snd_soc_device *socdev = platform_get_drvdata(pdev);
1555 struct snd_soc_codec *codec;
1556 int ret = 0;
1557
1558 if (!wm8753_codec) {
1559 dev_err(&pdev->dev, "WM8753 codec not yet registered\n");
1560 return -EINVAL;
1561 }
1562
1563 socdev->card->codec = wm8753_codec;
1564 codec = wm8753_codec;
1565
1566 wm8753_set_dai_mode(codec, 0);
1567
1568 /* register pcms */
1569 ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1);
1570 if (ret < 0) {
1571 printk(KERN_ERR "wm8753: failed to create pcms\n");
1572 goto pcm_err;
1573 }
1574
1575 snd_soc_add_controls(codec, wm8753_snd_controls,
1576 ARRAY_SIZE(wm8753_snd_controls));
1577 wm8753_add_widgets(codec);
1578
1579 return 0;
1580
1581 pcm_err:
1582 return ret;
1583 }
1584
1585 /*
1586 * This function forces any delayed work to be queued and run.
1587 */
1588 static int run_delayed_work(struct delayed_work *dwork)
1589 {
1590 int ret;
1591
1592 /* cancel any work waiting to be queued. */
1593 ret = cancel_delayed_work(dwork);
1594
1595 /* if there was any work waiting then we run it now and
1596 * wait for it's completion */
1597 if (ret) {
1598 schedule_delayed_work(dwork, 0);
1599 flush_scheduled_work();
1600 }
1601 return ret;
1602 }
1603
1604 /* power down chip */
1605 static int wm8753_remove(struct platform_device *pdev)
1606 {
1607 struct snd_soc_device *socdev = platform_get_drvdata(pdev);
1608
1609 snd_soc_free_pcms(socdev);
1610 snd_soc_dapm_free(socdev);
1611
1612 return 0;
1613 }
1614
1615 struct snd_soc_codec_device soc_codec_dev_wm8753 = {
1616 .probe = wm8753_probe,
1617 .remove = wm8753_remove,
1618 .suspend = wm8753_suspend,
1619 .resume = wm8753_resume,
1620 };
1621 EXPORT_SYMBOL_GPL(soc_codec_dev_wm8753);
1622
1623 static int wm8753_register(struct wm8753_priv *wm8753)
1624 {
1625 int ret, i;
1626 struct snd_soc_codec *codec = &wm8753->codec;
1627 u16 reg;
1628
1629 if (wm8753_codec) {
1630 dev_err(codec->dev, "Multiple WM8753 devices not supported\n");
1631 ret = -EINVAL;
1632 goto err;
1633 }
1634
1635 mutex_init(&codec->mutex);
1636 INIT_LIST_HEAD(&codec->dapm_widgets);
1637 INIT_LIST_HEAD(&codec->dapm_paths);
1638
1639 codec->name = "WM8753";
1640 codec->owner = THIS_MODULE;
1641 codec->read = wm8753_read_reg_cache;
1642 codec->write = wm8753_write;
1643 codec->bias_level = SND_SOC_BIAS_STANDBY;
1644 codec->set_bias_level = wm8753_set_bias_level;
1645 codec->dai = wm8753_dai;
1646 codec->num_dai = 2;
1647 codec->reg_cache_size = ARRAY_SIZE(wm8753->reg_cache) + 1;
1648 codec->reg_cache = &wm8753->reg_cache;
1649 snd_soc_codec_set_drvdata(codec, wm8753);
1650
1651 memcpy(codec->reg_cache, wm8753_reg, sizeof(wm8753->reg_cache));
1652 INIT_DELAYED_WORK(&codec->delayed_work, wm8753_work);
1653
1654 ret = wm8753_reset(codec);
1655 if (ret < 0) {
1656 dev_err(codec->dev, "Failed to issue reset\n");
1657 goto err;
1658 }
1659
1660 /* charge output caps */
1661 wm8753_set_bias_level(codec, SND_SOC_BIAS_PREPARE);
1662 schedule_delayed_work(&codec->delayed_work,
1663 msecs_to_jiffies(caps_charge));
1664
1665 /* set the update bits */
1666 reg = wm8753_read_reg_cache(codec, WM8753_LDAC);
1667 wm8753_write(codec, WM8753_LDAC, reg | 0x0100);
1668 reg = wm8753_read_reg_cache(codec, WM8753_RDAC);
1669 wm8753_write(codec, WM8753_RDAC, reg | 0x0100);
1670 reg = wm8753_read_reg_cache(codec, WM8753_LADC);
1671 wm8753_write(codec, WM8753_LADC, reg | 0x0100);
1672 reg = wm8753_read_reg_cache(codec, WM8753_RADC);
1673 wm8753_write(codec, WM8753_RADC, reg | 0x0100);
1674 reg = wm8753_read_reg_cache(codec, WM8753_LOUT1V);
1675 wm8753_write(codec, WM8753_LOUT1V, reg | 0x0100);
1676 reg = wm8753_read_reg_cache(codec, WM8753_ROUT1V);
1677 wm8753_write(codec, WM8753_ROUT1V, reg | 0x0100);
1678 reg = wm8753_read_reg_cache(codec, WM8753_LOUT2V);
1679 wm8753_write(codec, WM8753_LOUT2V, reg | 0x0100);
1680 reg = wm8753_read_reg_cache(codec, WM8753_ROUT2V);
1681 wm8753_write(codec, WM8753_ROUT2V, reg | 0x0100);
1682 reg = wm8753_read_reg_cache(codec, WM8753_LINVOL);
1683 wm8753_write(codec, WM8753_LINVOL, reg | 0x0100);
1684 reg = wm8753_read_reg_cache(codec, WM8753_RINVOL);
1685 wm8753_write(codec, WM8753_RINVOL, reg | 0x0100);
1686
1687 wm8753_codec = codec;
1688
1689 for (i = 0; i < ARRAY_SIZE(wm8753_dai); i++)
1690 wm8753_dai[i].dev = codec->dev;
1691
1692 ret = snd_soc_register_codec(codec);
1693 if (ret != 0) {
1694 dev_err(codec->dev, "Failed to register codec: %d\n", ret);
1695 goto err;
1696 }
1697
1698 ret = snd_soc_register_dais(&wm8753_dai[0], ARRAY_SIZE(wm8753_dai));
1699 if (ret != 0) {
1700 dev_err(codec->dev, "Failed to register DAIs: %d\n", ret);
1701 goto err_codec;
1702 }
1703
1704 return 0;
1705
1706 err_codec:
1707 run_delayed_work(&codec->delayed_work);
1708 snd_soc_unregister_codec(codec);
1709 err:
1710 kfree(wm8753);
1711 return ret;
1712 }
1713
1714 static void wm8753_unregister(struct wm8753_priv *wm8753)
1715 {
1716 wm8753_set_bias_level(&wm8753->codec, SND_SOC_BIAS_OFF);
1717 run_delayed_work(&wm8753->codec.delayed_work);
1718 snd_soc_unregister_dais(&wm8753_dai[0], ARRAY_SIZE(wm8753_dai));
1719 snd_soc_unregister_codec(&wm8753->codec);
1720 kfree(wm8753);
1721 wm8753_codec = NULL;
1722 }
1723
1724 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
1725
1726 static int wm8753_i2c_probe(struct i2c_client *i2c,
1727 const struct i2c_device_id *id)
1728 {
1729 struct snd_soc_codec *codec;
1730 struct wm8753_priv *wm8753;
1731
1732 wm8753 = kzalloc(sizeof(struct wm8753_priv), GFP_KERNEL);
1733 if (wm8753 == NULL)
1734 return -ENOMEM;
1735
1736 codec = &wm8753->codec;
1737 codec->hw_write = (hw_write_t)i2c_master_send;
1738 codec->control_data = i2c;
1739 i2c_set_clientdata(i2c, wm8753);
1740
1741 codec->dev = &i2c->dev;
1742
1743 return wm8753_register(wm8753);
1744 }
1745
1746 static int wm8753_i2c_remove(struct i2c_client *client)
1747 {
1748 struct wm8753_priv *wm8753 = i2c_get_clientdata(client);
1749 wm8753_unregister(wm8753);
1750 return 0;
1751 }
1752
1753 static const struct i2c_device_id wm8753_i2c_id[] = {
1754 { "wm8753", 0 },
1755 { }
1756 };
1757 MODULE_DEVICE_TABLE(i2c, wm8753_i2c_id);
1758
1759 static struct i2c_driver wm8753_i2c_driver = {
1760 .driver = {
1761 .name = "wm8753",
1762 .owner = THIS_MODULE,
1763 },
1764 .probe = wm8753_i2c_probe,
1765 .remove = wm8753_i2c_remove,
1766 .id_table = wm8753_i2c_id,
1767 };
1768 #endif
1769
1770 #if defined(CONFIG_SPI_MASTER)
1771 static int wm8753_spi_write(struct spi_device *spi, const char *data, int len)
1772 {
1773 struct spi_transfer t;
1774 struct spi_message m;
1775 u8 msg[2];
1776
1777 if (len <= 0)
1778 return 0;
1779
1780 msg[0] = data[0];
1781 msg[1] = data[1];
1782
1783 spi_message_init(&m);
1784 memset(&t, 0, (sizeof t));
1785
1786 t.tx_buf = &msg[0];
1787 t.len = len;
1788
1789 spi_message_add_tail(&t, &m);
1790 spi_sync(spi, &m);
1791
1792 return len;
1793 }
1794
1795 static int __devinit wm8753_spi_probe(struct spi_device *spi)
1796 {
1797 struct snd_soc_codec *codec;
1798 struct wm8753_priv *wm8753;
1799
1800 wm8753 = kzalloc(sizeof(struct wm8753_priv), GFP_KERNEL);
1801 if (wm8753 == NULL)
1802 return -ENOMEM;
1803
1804 codec = &wm8753->codec;
1805 codec->control_data = spi;
1806 codec->hw_write = (hw_write_t)wm8753_spi_write;
1807 codec->dev = &spi->dev;
1808
1809 dev_set_drvdata(&spi->dev, wm8753);
1810
1811 return wm8753_register(wm8753);
1812 }
1813
1814 static int __devexit wm8753_spi_remove(struct spi_device *spi)
1815 {
1816 struct wm8753_priv *wm8753 = dev_get_drvdata(&spi->dev);
1817 wm8753_unregister(wm8753);
1818 return 0;
1819 }
1820
1821 static struct spi_driver wm8753_spi_driver = {
1822 .driver = {
1823 .name = "wm8753",
1824 .bus = &spi_bus_type,
1825 .owner = THIS_MODULE,
1826 },
1827 .probe = wm8753_spi_probe,
1828 .remove = __devexit_p(wm8753_spi_remove),
1829 };
1830 #endif
1831
1832 static int __init wm8753_modinit(void)
1833 {
1834 int ret;
1835 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
1836 ret = i2c_add_driver(&wm8753_i2c_driver);
1837 if (ret != 0)
1838 pr_err("Failed to register WM8753 I2C driver: %d\n", ret);
1839 #endif
1840 #if defined(CONFIG_SPI_MASTER)
1841 ret = spi_register_driver(&wm8753_spi_driver);
1842 if (ret != 0)
1843 pr_err("Failed to register WM8753 SPI driver: %d\n", ret);
1844 #endif
1845 return 0;
1846 }
1847 module_init(wm8753_modinit);
1848
1849 static void __exit wm8753_exit(void)
1850 {
1851 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
1852 i2c_del_driver(&wm8753_i2c_driver);
1853 #endif
1854 #if defined(CONFIG_SPI_MASTER)
1855 spi_unregister_driver(&wm8753_spi_driver);
1856 #endif
1857 }
1858 module_exit(wm8753_exit);
1859
1860 MODULE_DESCRIPTION("ASoC WM8753 driver");
1861 MODULE_AUTHOR("Liam Girdwood");
1862 MODULE_LICENSE("GPL");
Linux with added FPC-III support