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nfsd4: put_nfs4_client does not require state lock
[linux/fpc-iii.git] / sound / soc / codecs / wm8753.c
blob77620ab9875618f9217e8a6479b61478300c5ecf
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 <sound/core.h>
44 #include <sound/pcm.h>
45 #include <sound/pcm_params.h>
46 #include <sound/soc.h>
47 #include <sound/soc-dapm.h>
48 #include <sound/initval.h>
49 #include <sound/tlv.h>
50 #include <asm/div64.h>
51
52 #include "wm8753.h"
53
54 #define WM8753_VERSION "0.16"
55
56 static int caps_charge = 2000;
57 module_param(caps_charge, int, 0);
58 MODULE_PARM_DESC(caps_charge, "WM8753 cap charge time (msecs)");
59
60 static void wm8753_set_dai_mode(struct snd_soc_codec *codec,
61 unsigned int mode);
62
63 /* codec private data */
64 struct wm8753_priv {
65 unsigned int sysclk;
66 unsigned int pcmclk;
67 };
68
69 /*
70 * wm8753 register cache
71 * We can't read the WM8753 register space when we
72 * are using 2 wire for device control, so we cache them instead.
73 */
74 static const u16 wm8753_reg[] = {
75 0x0008, 0x0000, 0x000a, 0x000a,
76 0x0033, 0x0000, 0x0007, 0x00ff,
77 0x00ff, 0x000f, 0x000f, 0x007b,
78 0x0000, 0x0032, 0x0000, 0x00c3,
79 0x00c3, 0x00c0, 0x0000, 0x0000,
80 0x0000, 0x0000, 0x0000, 0x0000,
81 0x0000, 0x0000, 0x0000, 0x0000,
82 0x0000, 0x0000, 0x0000, 0x0055,
83 0x0005, 0x0050, 0x0055, 0x0050,
84 0x0055, 0x0050, 0x0055, 0x0079,
85 0x0079, 0x0079, 0x0079, 0x0079,
86 0x0000, 0x0000, 0x0000, 0x0000,
87 0x0097, 0x0097, 0x0000, 0x0004,
88 0x0000, 0x0083, 0x0024, 0x01ba,
89 0x0000, 0x0083, 0x0024, 0x01ba,
90 0x0000, 0x0000
91 };
92
93 /*
94 * read wm8753 register cache
95 */
96 static inline unsigned int wm8753_read_reg_cache(struct snd_soc_codec *codec,
97 unsigned int reg)
98 {
99 u16 *cache = codec->reg_cache;
100 if (reg < 1 || reg > (ARRAY_SIZE(wm8753_reg) + 1))
101 return -1;
102 return cache[reg - 1];
103 }
104
105 /*
106 * write wm8753 register cache
107 */
108 static inline void wm8753_write_reg_cache(struct snd_soc_codec *codec,
109 unsigned int reg, unsigned int value)
110 {
111 u16 *cache = codec->reg_cache;
112 if (reg < 1 || reg > 0x3f)
113 return;
114 cache[reg - 1] = value;
115 }
116
117 /*
118 * write to the WM8753 register space
119 */
120 static int wm8753_write(struct snd_soc_codec *codec, unsigned int reg,
121 unsigned int value)
122 {
123 u8 data[2];
124
125 /* data is
126 * D15..D9 WM8753 register offset
127 * D8...D0 register data
128 */
129 data[0] = (reg << 1) | ((value >> 8) & 0x0001);
130 data[1] = value & 0x00ff;
131
132 wm8753_write_reg_cache(codec, reg, value);
133 if (codec->hw_write(codec->control_data, data, 2) == 2)
134 return 0;
135 else
136 return -EIO;
137 }
138
139 #define wm8753_reset(c) wm8753_write(c, WM8753_RESET, 0)
140
141 /*
142 * WM8753 Controls
143 */
144 static const char *wm8753_base[] = {"Linear Control", "Adaptive Boost"};
145 static const char *wm8753_base_filter[] =
146 {"130Hz @ 48kHz", "200Hz @ 48kHz", "100Hz @ 16kHz", "400Hz @ 48kHz",
147 "100Hz @ 8kHz", "200Hz @ 8kHz"};
148 static const char *wm8753_treble[] = {"8kHz", "4kHz"};
149 static const char *wm8753_alc_func[] = {"Off", "Right", "Left", "Stereo"};
150 static const char *wm8753_ng_type[] = {"Constant PGA Gain", "Mute ADC Output"};
151 static const char *wm8753_3d_func[] = {"Capture", "Playback"};
152 static const char *wm8753_3d_uc[] = {"2.2kHz", "1.5kHz"};
153 static const char *wm8753_3d_lc[] = {"200Hz", "500Hz"};
154 static const char *wm8753_deemp[] = {"None", "32kHz", "44.1kHz", "48kHz"};
155 static const char *wm8753_mono_mix[] = {"Stereo", "Left", "Right", "Mono"};
156 static const char *wm8753_dac_phase[] = {"Non Inverted", "Inverted"};
157 static const char *wm8753_line_mix[] = {"Line 1 + 2", "Line 1 - 2",
158 "Line 1", "Line 2"};
159 static const char *wm8753_mono_mux[] = {"Line Mix", "Rx Mix"};
160 static const char *wm8753_right_mux[] = {"Line 2", "Rx Mix"};
161 static const char *wm8753_left_mux[] = {"Line 1", "Rx Mix"};
162 static const char *wm8753_rxmsel[] = {"RXP - RXN", "RXP + RXN", "RXP", "RXN"};
163 static const char *wm8753_sidetone_mux[] = {"Left PGA", "Mic 1", "Mic 2",
164 "Right PGA"};
165 static const char *wm8753_mono2_src[] = {"Inverted Mono 1", "Left", "Right",
166 "Left + Right"};
167 static const char *wm8753_out3[] = {"VREF", "ROUT2", "Left + Right"};
168 static const char *wm8753_out4[] = {"VREF", "Capture ST", "LOUT2"};
169 static const char *wm8753_radcsel[] = {"PGA", "Line or RXP-RXN", "Sidetone"};
170 static const char *wm8753_ladcsel[] = {"PGA", "Line or RXP-RXN", "Line"};
171 static const char *wm8753_mono_adc[] = {"Stereo", "Analogue Mix Left",
172 "Analogue Mix Right", "Digital Mono Mix"};
173 static const char *wm8753_adc_hp[] = {"3.4Hz @ 48kHz", "82Hz @ 16k",
174 "82Hz @ 8kHz", "170Hz @ 8kHz"};
175 static const char *wm8753_adc_filter[] = {"HiFi", "Voice"};
176 static const char *wm8753_mic_sel[] = {"Mic 1", "Mic 2", "Mic 3"};
177 static const char *wm8753_dai_mode[] = {"DAI 0", "DAI 1", "DAI 2", "DAI 3"};
178 static const char *wm8753_dat_sel[] = {"Stereo", "Left ADC", "Right ADC",
179 "Channel Swap"};
180 static const char *wm8753_rout2_phase[] = {"Non Inverted", "Inverted"};
181
182 static const struct soc_enum wm8753_enum[] = {
183 SOC_ENUM_SINGLE(WM8753_BASS, 7, 2, wm8753_base),
184 SOC_ENUM_SINGLE(WM8753_BASS, 4, 6, wm8753_base_filter),
185 SOC_ENUM_SINGLE(WM8753_TREBLE, 6, 2, wm8753_treble),
186 SOC_ENUM_SINGLE(WM8753_ALC1, 7, 4, wm8753_alc_func),
187 SOC_ENUM_SINGLE(WM8753_NGATE, 1, 2, wm8753_ng_type),
188 SOC_ENUM_SINGLE(WM8753_3D, 7, 2, wm8753_3d_func),
189 SOC_ENUM_SINGLE(WM8753_3D, 6, 2, wm8753_3d_uc),
190 SOC_ENUM_SINGLE(WM8753_3D, 5, 2, wm8753_3d_lc),
191 SOC_ENUM_SINGLE(WM8753_DAC, 1, 4, wm8753_deemp),
192 SOC_ENUM_SINGLE(WM8753_DAC, 4, 4, wm8753_mono_mix),
193 SOC_ENUM_SINGLE(WM8753_DAC, 6, 2, wm8753_dac_phase),
194 SOC_ENUM_SINGLE(WM8753_INCTL1, 3, 4, wm8753_line_mix),
195 SOC_ENUM_SINGLE(WM8753_INCTL1, 2, 2, wm8753_mono_mux),
196 SOC_ENUM_SINGLE(WM8753_INCTL1, 1, 2, wm8753_right_mux),
197 SOC_ENUM_SINGLE(WM8753_INCTL1, 0, 2, wm8753_left_mux),
198 SOC_ENUM_SINGLE(WM8753_INCTL2, 6, 4, wm8753_rxmsel),
199 SOC_ENUM_SINGLE(WM8753_INCTL2, 4, 4, wm8753_sidetone_mux),
200 SOC_ENUM_SINGLE(WM8753_OUTCTL, 7, 4, wm8753_mono2_src),
201 SOC_ENUM_SINGLE(WM8753_OUTCTL, 0, 3, wm8753_out3),
202 SOC_ENUM_SINGLE(WM8753_ADCTL2, 7, 3, wm8753_out4),
203 SOC_ENUM_SINGLE(WM8753_ADCIN, 2, 3, wm8753_radcsel),
204 SOC_ENUM_SINGLE(WM8753_ADCIN, 0, 3, wm8753_ladcsel),
205 SOC_ENUM_SINGLE(WM8753_ADCIN, 4, 4, wm8753_mono_adc),
206 SOC_ENUM_SINGLE(WM8753_ADC, 2, 4, wm8753_adc_hp),
207 SOC_ENUM_SINGLE(WM8753_ADC, 4, 2, wm8753_adc_filter),
208 SOC_ENUM_SINGLE(WM8753_MICBIAS, 6, 3, wm8753_mic_sel),
209 SOC_ENUM_SINGLE(WM8753_IOCTL, 2, 4, wm8753_dai_mode),
210 SOC_ENUM_SINGLE(WM8753_ADC, 7, 4, wm8753_dat_sel),
211 SOC_ENUM_SINGLE(WM8753_OUTCTL, 2, 2, wm8753_rout2_phase),
212 };
213
214
215 static int wm8753_get_dai(struct snd_kcontrol *kcontrol,
216 struct snd_ctl_elem_value *ucontrol)
217 {
218 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
219 int mode = wm8753_read_reg_cache(codec, WM8753_IOCTL);
220
221 ucontrol->value.integer.value[0] = (mode & 0xc) >> 2;
222 return 0;
223 }
224
225 static int wm8753_set_dai(struct snd_kcontrol *kcontrol,
226 struct snd_ctl_elem_value *ucontrol)
227 {
228 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
229 int mode = wm8753_read_reg_cache(codec, WM8753_IOCTL);
230
231 if (((mode & 0xc) >> 2) == ucontrol->value.integer.value[0])
232 return 0;
233
234 mode &= 0xfff3;
235 mode |= (ucontrol->value.integer.value[0] << 2);
236
237 wm8753_write(codec, WM8753_IOCTL, mode);
238 wm8753_set_dai_mode(codec, ucontrol->value.integer.value[0]);
239 return 1;
240 }
241
242 static const DECLARE_TLV_DB_SCALE(rec_mix_tlv, -1500, 300, 0);
243 static const DECLARE_TLV_DB_SCALE(mic_preamp_tlv, 1200, 600, 0);
244 static const DECLARE_TLV_DB_SCALE(adc_tlv, -9750, 50, 1);
245 static const DECLARE_TLV_DB_SCALE(dac_tlv, -12750, 50, 1);
246 static const unsigned int out_tlv[] = {
247 TLV_DB_RANGE_HEAD(2),
248 /* 0000000 - 0101111 = "Analogue mute" */
249 0, 48, TLV_DB_SCALE_ITEM(-25500, 0, 0),
250 48, 127, TLV_DB_SCALE_ITEM(-7300, 100, 0),
251 };
252 static const DECLARE_TLV_DB_SCALE(mix_tlv, -1500, 300, 0);
253 static const DECLARE_TLV_DB_SCALE(voice_mix_tlv, -1200, 300, 0);
254 static const DECLARE_TLV_DB_SCALE(pga_tlv, -1725, 75, 0);
255
256 static const struct snd_kcontrol_new wm8753_snd_controls[] = {
257 SOC_DOUBLE_R_TLV("PCM Volume", WM8753_LDAC, WM8753_RDAC, 0, 255, 0, dac_tlv),
258
259 SOC_DOUBLE_R_TLV("ADC Capture Volume", WM8753_LADC, WM8753_RADC, 0, 255, 0,
260 adc_tlv),
261
262 SOC_DOUBLE_R_TLV("Headphone Playback Volume", WM8753_LOUT1V, WM8753_ROUT1V,
263 0, 127, 0, out_tlv),
264 SOC_DOUBLE_R_TLV("Speaker Playback Volume", WM8753_LOUT2V, WM8753_ROUT2V, 0,
265 127, 0, out_tlv),
266
267 SOC_SINGLE_TLV("Mono Playback Volume", WM8753_MOUTV, 0, 127, 0, out_tlv),
268
269 SOC_DOUBLE_R_TLV("Bypass Playback Volume", WM8753_LOUTM1, WM8753_ROUTM1, 4, 7,
270 1, mix_tlv),
271 SOC_DOUBLE_R_TLV("Sidetone Playback Volume", WM8753_LOUTM2, WM8753_ROUTM2, 4,
272 7, 1, mix_tlv),
273 SOC_DOUBLE_R_TLV("Voice Playback Volume", WM8753_LOUTM2, WM8753_ROUTM2, 0, 7,
274 1, voice_mix_tlv),
275
276 SOC_DOUBLE_R("Headphone Playback ZC Switch", WM8753_LOUT1V, WM8753_ROUT1V, 7,
277 1, 0),
278 SOC_DOUBLE_R("Speaker Playback ZC Switch", WM8753_LOUT2V, WM8753_ROUT2V, 7,
279 1, 0),
280
281 SOC_SINGLE_TLV("Mono Bypass Playback Volume", WM8753_MOUTM1, 4, 7, 1, mix_tlv),
282 SOC_SINGLE_TLV("Mono Sidetone Playback Volume", WM8753_MOUTM2, 4, 7, 1,
283 mix_tlv),
284 SOC_SINGLE_TLV("Mono Voice Playback Volume", WM8753_MOUTM2, 0, 7, 1,
285 voice_mix_tlv),
286 SOC_SINGLE("Mono Playback ZC Switch", WM8753_MOUTV, 7, 1, 0),
287
288 SOC_ENUM("Bass Boost", wm8753_enum[0]),
289 SOC_ENUM("Bass Filter", wm8753_enum[1]),
290 SOC_SINGLE("Bass Volume", WM8753_BASS, 0, 15, 1),
291
292 SOC_SINGLE("Treble Volume", WM8753_TREBLE, 0, 15, 1),
293 SOC_ENUM("Treble Cut-off", wm8753_enum[2]),
294
295 SOC_DOUBLE_TLV("Sidetone Capture Volume", WM8753_RECMIX1, 0, 4, 7, 1,
296 rec_mix_tlv),
297 SOC_SINGLE_TLV("Voice Sidetone Capture Volume", WM8753_RECMIX2, 0, 7, 1,
298 rec_mix_tlv),
299
300 SOC_DOUBLE_R_TLV("Capture Volume", WM8753_LINVOL, WM8753_RINVOL, 0, 63, 0,
301 pga_tlv),
302 SOC_DOUBLE_R("Capture ZC Switch", WM8753_LINVOL, WM8753_RINVOL, 6, 1, 0),
303 SOC_DOUBLE_R("Capture Switch", WM8753_LINVOL, WM8753_RINVOL, 7, 1, 1),
304
305 SOC_ENUM("Capture Filter Select", wm8753_enum[23]),
306 SOC_ENUM("Capture Filter Cut-off", wm8753_enum[24]),
307 SOC_SINGLE("Capture Filter Switch", WM8753_ADC, 0, 1, 1),
308
309 SOC_SINGLE("ALC Capture Target Volume", WM8753_ALC1, 0, 7, 0),
310 SOC_SINGLE("ALC Capture Max Volume", WM8753_ALC1, 4, 7, 0),
311 SOC_ENUM("ALC Capture Function", wm8753_enum[3]),
312 SOC_SINGLE("ALC Capture ZC Switch", WM8753_ALC2, 8, 1, 0),
313 SOC_SINGLE("ALC Capture Hold Time", WM8753_ALC2, 0, 15, 1),
314 SOC_SINGLE("ALC Capture Decay Time", WM8753_ALC3, 4, 15, 1),
315 SOC_SINGLE("ALC Capture Attack Time", WM8753_ALC3, 0, 15, 0),
316 SOC_SINGLE("ALC Capture NG Threshold", WM8753_NGATE, 3, 31, 0),
317 SOC_ENUM("ALC Capture NG Type", wm8753_enum[4]),
318 SOC_SINGLE("ALC Capture NG Switch", WM8753_NGATE, 0, 1, 0),
319
320 SOC_ENUM("3D Function", wm8753_enum[5]),
321 SOC_ENUM("3D Upper Cut-off", wm8753_enum[6]),
322 SOC_ENUM("3D Lower Cut-off", wm8753_enum[7]),
323 SOC_SINGLE("3D Volume", WM8753_3D, 1, 15, 0),
324 SOC_SINGLE("3D Switch", WM8753_3D, 0, 1, 0),
325
326 SOC_SINGLE("Capture 6dB Attenuate", WM8753_ADCTL1, 2, 1, 0),
327 SOC_SINGLE("Playback 6dB Attenuate", WM8753_ADCTL1, 1, 1, 0),
328
329 SOC_ENUM("De-emphasis", wm8753_enum[8]),
330 SOC_ENUM("Playback Mono Mix", wm8753_enum[9]),
331 SOC_ENUM("Playback Phase", wm8753_enum[10]),
332
333 SOC_SINGLE_TLV("Mic2 Capture Volume", WM8753_INCTL1, 7, 3, 0, mic_preamp_tlv),
334 SOC_SINGLE_TLV("Mic1 Capture Volume", WM8753_INCTL1, 5, 3, 0, mic_preamp_tlv),
335
336 SOC_ENUM_EXT("DAI Mode", wm8753_enum[26], wm8753_get_dai, wm8753_set_dai),
337
338 SOC_ENUM("ADC Data Select", wm8753_enum[27]),
339 SOC_ENUM("ROUT2 Phase", wm8753_enum[28]),
340 };
341
342 /* add non dapm controls */
343 static int wm8753_add_controls(struct snd_soc_codec *codec)
344 {
345 int err, i;
346
347 for (i = 0; i < ARRAY_SIZE(wm8753_snd_controls); i++) {
348 err = snd_ctl_add(codec->card,
349 snd_soc_cnew(&wm8753_snd_controls[i],
350 codec, NULL));
351 if (err < 0)
352 return err;
353 }
354 return 0;
355 }
356
357 /*
358 * _DAPM_ Controls
359 */
360
361 /* Left Mixer */
362 static const struct snd_kcontrol_new wm8753_left_mixer_controls[] = {
363 SOC_DAPM_SINGLE("Voice Playback Switch", WM8753_LOUTM2, 8, 1, 0),
364 SOC_DAPM_SINGLE("Sidetone Playback Switch", WM8753_LOUTM2, 7, 1, 0),
365 SOC_DAPM_SINGLE("Left Playback Switch", WM8753_LOUTM1, 8, 1, 0),
366 SOC_DAPM_SINGLE("Bypass Playback Switch", WM8753_LOUTM1, 7, 1, 0),
367 };
368
369 /* Right mixer */
370 static const struct snd_kcontrol_new wm8753_right_mixer_controls[] = {
371 SOC_DAPM_SINGLE("Voice Playback Switch", WM8753_ROUTM2, 8, 1, 0),
372 SOC_DAPM_SINGLE("Sidetone Playback Switch", WM8753_ROUTM2, 7, 1, 0),
373 SOC_DAPM_SINGLE("Right Playback Switch", WM8753_ROUTM1, 8, 1, 0),
374 SOC_DAPM_SINGLE("Bypass Playback Switch", WM8753_ROUTM1, 7, 1, 0),
375 };
376
377 /* Mono mixer */
378 static const struct snd_kcontrol_new wm8753_mono_mixer_controls[] = {
379 SOC_DAPM_SINGLE("Left Playback Switch", WM8753_MOUTM1, 8, 1, 0),
380 SOC_DAPM_SINGLE("Right Playback Switch", WM8753_MOUTM2, 8, 1, 0),
381 SOC_DAPM_SINGLE("Voice Playback Switch", WM8753_MOUTM2, 3, 1, 0),
382 SOC_DAPM_SINGLE("Sidetone Playback Switch", WM8753_MOUTM2, 7, 1, 0),
383 SOC_DAPM_SINGLE("Bypass Playback Switch", WM8753_MOUTM1, 7, 1, 0),
384 };
385
386 /* Mono 2 Mux */
387 static const struct snd_kcontrol_new wm8753_mono2_controls =
388 SOC_DAPM_ENUM("Route", wm8753_enum[17]);
389
390 /* Out 3 Mux */
391 static const struct snd_kcontrol_new wm8753_out3_controls =
392 SOC_DAPM_ENUM("Route", wm8753_enum[18]);
393
394 /* Out 4 Mux */
395 static const struct snd_kcontrol_new wm8753_out4_controls =
396 SOC_DAPM_ENUM("Route", wm8753_enum[19]);
397
398 /* ADC Mono Mix */
399 static const struct snd_kcontrol_new wm8753_adc_mono_controls =
400 SOC_DAPM_ENUM("Route", wm8753_enum[22]);
401
402 /* Record mixer */
403 static const struct snd_kcontrol_new wm8753_record_mixer_controls[] = {
404 SOC_DAPM_SINGLE("Voice Capture Switch", WM8753_RECMIX2, 3, 1, 0),
405 SOC_DAPM_SINGLE("Left Capture Switch", WM8753_RECMIX1, 3, 1, 0),
406 SOC_DAPM_SINGLE("Right Capture Switch", WM8753_RECMIX1, 7, 1, 0),
407 };
408
409 /* Left ADC mux */
410 static const struct snd_kcontrol_new wm8753_adc_left_controls =
411 SOC_DAPM_ENUM("Route", wm8753_enum[21]);
412
413 /* Right ADC mux */
414 static const struct snd_kcontrol_new wm8753_adc_right_controls =
415 SOC_DAPM_ENUM("Route", wm8753_enum[20]);
416
417 /* MIC mux */
418 static const struct snd_kcontrol_new wm8753_mic_mux_controls =
419 SOC_DAPM_ENUM("Route", wm8753_enum[16]);
420
421 /* ALC mixer */
422 static const struct snd_kcontrol_new wm8753_alc_mixer_controls[] = {
423 SOC_DAPM_SINGLE("Line Capture Switch", WM8753_INCTL2, 3, 1, 0),
424 SOC_DAPM_SINGLE("Mic2 Capture Switch", WM8753_INCTL2, 2, 1, 0),
425 SOC_DAPM_SINGLE("Mic1 Capture Switch", WM8753_INCTL2, 1, 1, 0),
426 SOC_DAPM_SINGLE("Rx Capture Switch", WM8753_INCTL2, 0, 1, 0),
427 };
428
429 /* Left Line mux */
430 static const struct snd_kcontrol_new wm8753_line_left_controls =
431 SOC_DAPM_ENUM("Route", wm8753_enum[14]);
432
433 /* Right Line mux */
434 static const struct snd_kcontrol_new wm8753_line_right_controls =
435 SOC_DAPM_ENUM("Route", wm8753_enum[13]);
436
437 /* Mono Line mux */
438 static const struct snd_kcontrol_new wm8753_line_mono_controls =
439 SOC_DAPM_ENUM("Route", wm8753_enum[12]);
440
441 /* Line mux and mixer */
442 static const struct snd_kcontrol_new wm8753_line_mux_mix_controls =
443 SOC_DAPM_ENUM("Route", wm8753_enum[11]);
444
445 /* Rx mux and mixer */
446 static const struct snd_kcontrol_new wm8753_rx_mux_mix_controls =
447 SOC_DAPM_ENUM("Route", wm8753_enum[15]);
448
449 /* Mic Selector Mux */
450 static const struct snd_kcontrol_new wm8753_mic_sel_mux_controls =
451 SOC_DAPM_ENUM("Route", wm8753_enum[25]);
452
453 static const struct snd_soc_dapm_widget wm8753_dapm_widgets[] = {
454 SND_SOC_DAPM_MICBIAS("Mic Bias", WM8753_PWR1, 5, 0),
455 SND_SOC_DAPM_MIXER("Left Mixer", WM8753_PWR4, 0, 0,
456 &wm8753_left_mixer_controls[0], ARRAY_SIZE(wm8753_left_mixer_controls)),
457 SND_SOC_DAPM_PGA("Left Out 1", WM8753_PWR3, 8, 0, NULL, 0),
458 SND_SOC_DAPM_PGA("Left Out 2", WM8753_PWR3, 6, 0, NULL, 0),
459 SND_SOC_DAPM_DAC("Left DAC", "Left HiFi Playback", WM8753_PWR1, 3, 0),
460 SND_SOC_DAPM_OUTPUT("LOUT1"),
461 SND_SOC_DAPM_OUTPUT("LOUT2"),
462 SND_SOC_DAPM_MIXER("Right Mixer", WM8753_PWR4, 1, 0,
463 &wm8753_right_mixer_controls[0], ARRAY_SIZE(wm8753_right_mixer_controls)),
464 SND_SOC_DAPM_PGA("Right Out 1", WM8753_PWR3, 7, 0, NULL, 0),
465 SND_SOC_DAPM_PGA("Right Out 2", WM8753_PWR3, 5, 0, NULL, 0),
466 SND_SOC_DAPM_DAC("Right DAC", "Right HiFi Playback", WM8753_PWR1, 2, 0),
467 SND_SOC_DAPM_OUTPUT("ROUT1"),
468 SND_SOC_DAPM_OUTPUT("ROUT2"),
469 SND_SOC_DAPM_MIXER("Mono Mixer", WM8753_PWR4, 2, 0,
470 &wm8753_mono_mixer_controls[0], ARRAY_SIZE(wm8753_mono_mixer_controls)),
471 SND_SOC_DAPM_PGA("Mono Out 1", WM8753_PWR3, 2, 0, NULL, 0),
472 SND_SOC_DAPM_PGA("Mono Out 2", WM8753_PWR3, 1, 0, NULL, 0),
473 SND_SOC_DAPM_DAC("Voice DAC", "Voice Playback", WM8753_PWR1, 4, 0),
474 SND_SOC_DAPM_OUTPUT("MONO1"),
475 SND_SOC_DAPM_MUX("Mono 2 Mux", SND_SOC_NOPM, 0, 0, &wm8753_mono2_controls),
476 SND_SOC_DAPM_OUTPUT("MONO2"),
477 SND_SOC_DAPM_MIXER("Out3 Left + Right", -1, 0, 0, NULL, 0),
478 SND_SOC_DAPM_MUX("Out3 Mux", SND_SOC_NOPM, 0, 0, &wm8753_out3_controls),
479 SND_SOC_DAPM_PGA("Out 3", WM8753_PWR3, 4, 0, NULL, 0),
480 SND_SOC_DAPM_OUTPUT("OUT3"),
481 SND_SOC_DAPM_MUX("Out4 Mux", SND_SOC_NOPM, 0, 0, &wm8753_out4_controls),
482 SND_SOC_DAPM_PGA("Out 4", WM8753_PWR3, 3, 0, NULL, 0),
483 SND_SOC_DAPM_OUTPUT("OUT4"),
484 SND_SOC_DAPM_MIXER("Playback Mixer", WM8753_PWR4, 3, 0,
485 &wm8753_record_mixer_controls[0],
486 ARRAY_SIZE(wm8753_record_mixer_controls)),
487 SND_SOC_DAPM_ADC("Left ADC", "Left Capture", WM8753_PWR2, 3, 0),
488 SND_SOC_DAPM_ADC("Right ADC", "Right Capture", WM8753_PWR2, 2, 0),
489 SND_SOC_DAPM_MUX("Capture Left Mixer", SND_SOC_NOPM, 0, 0,
490 &wm8753_adc_mono_controls),
491 SND_SOC_DAPM_MUX("Capture Right Mixer", SND_SOC_NOPM, 0, 0,
492 &wm8753_adc_mono_controls),
493 SND_SOC_DAPM_MUX("Capture Left Mux", SND_SOC_NOPM, 0, 0,
494 &wm8753_adc_left_controls),
495 SND_SOC_DAPM_MUX("Capture Right Mux", SND_SOC_NOPM, 0, 0,
496 &wm8753_adc_right_controls),
497 SND_SOC_DAPM_MUX("Mic Sidetone Mux", SND_SOC_NOPM, 0, 0,
498 &wm8753_mic_mux_controls),
499 SND_SOC_DAPM_PGA("Left Capture Volume", WM8753_PWR2, 5, 0, NULL, 0),
500 SND_SOC_DAPM_PGA("Right Capture Volume", WM8753_PWR2, 4, 0, NULL, 0),
501 SND_SOC_DAPM_MIXER("ALC Mixer", WM8753_PWR2, 6, 0,
502 &wm8753_alc_mixer_controls[0], ARRAY_SIZE(wm8753_alc_mixer_controls)),
503 SND_SOC_DAPM_MUX("Line Left Mux", SND_SOC_NOPM, 0, 0,
504 &wm8753_line_left_controls),
505 SND_SOC_DAPM_MUX("Line Right Mux", SND_SOC_NOPM, 0, 0,
506 &wm8753_line_right_controls),
507 SND_SOC_DAPM_MUX("Line Mono Mux", SND_SOC_NOPM, 0, 0,
508 &wm8753_line_mono_controls),
509 SND_SOC_DAPM_MUX("Line Mixer", WM8753_PWR2, 0, 0,
510 &wm8753_line_mux_mix_controls),
511 SND_SOC_DAPM_MUX("Rx Mixer", WM8753_PWR2, 1, 0,
512 &wm8753_rx_mux_mix_controls),
513 SND_SOC_DAPM_PGA("Mic 1 Volume", WM8753_PWR2, 8, 0, NULL, 0),
514 SND_SOC_DAPM_PGA("Mic 2 Volume", WM8753_PWR2, 7, 0, NULL, 0),
515 SND_SOC_DAPM_MUX("Mic Selection Mux", SND_SOC_NOPM, 0, 0,
516 &wm8753_mic_sel_mux_controls),
517 SND_SOC_DAPM_INPUT("LINE1"),
518 SND_SOC_DAPM_INPUT("LINE2"),
519 SND_SOC_DAPM_INPUT("RXP"),
520 SND_SOC_DAPM_INPUT("RXN"),
521 SND_SOC_DAPM_INPUT("ACIN"),
522 SND_SOC_DAPM_OUTPUT("ACOP"),
523 SND_SOC_DAPM_INPUT("MIC1N"),
524 SND_SOC_DAPM_INPUT("MIC1"),
525 SND_SOC_DAPM_INPUT("MIC2N"),
526 SND_SOC_DAPM_INPUT("MIC2"),
527 SND_SOC_DAPM_VMID("VREF"),
528 };
529
530 static const struct snd_soc_dapm_route audio_map[] = {
531 /* left mixer */
532 {"Left Mixer", "Left Playback Switch", "Left DAC"},
533 {"Left Mixer", "Voice Playback Switch", "Voice DAC"},
534 {"Left Mixer", "Sidetone Playback Switch", "Mic Sidetone Mux"},
535 {"Left Mixer", "Bypass Playback Switch", "Line Left Mux"},
536
537 /* right mixer */
538 {"Right Mixer", "Right Playback Switch", "Right DAC"},
539 {"Right Mixer", "Voice Playback Switch", "Voice DAC"},
540 {"Right Mixer", "Sidetone Playback Switch", "Mic Sidetone Mux"},
541 {"Right Mixer", "Bypass Playback Switch", "Line Right Mux"},
542
543 /* mono mixer */
544 {"Mono Mixer", "Voice Playback Switch", "Voice DAC"},
545 {"Mono Mixer", "Left Playback Switch", "Left DAC"},
546 {"Mono Mixer", "Right Playback Switch", "Right DAC"},
547 {"Mono Mixer", "Sidetone Playback Switch", "Mic Sidetone Mux"},
548 {"Mono Mixer", "Bypass Playback Switch", "Line Mono Mux"},
549
550 /* left out */
551 {"Left Out 1", NULL, "Left Mixer"},
552 {"Left Out 2", NULL, "Left Mixer"},
553 {"LOUT1", NULL, "Left Out 1"},
554 {"LOUT2", NULL, "Left Out 2"},
555
556 /* right out */
557 {"Right Out 1", NULL, "Right Mixer"},
558 {"Right Out 2", NULL, "Right Mixer"},
559 {"ROUT1", NULL, "Right Out 1"},
560 {"ROUT2", NULL, "Right Out 2"},
561
562 /* mono 1 out */
563 {"Mono Out 1", NULL, "Mono Mixer"},
564 {"MONO1", NULL, "Mono Out 1"},
565
566 /* mono 2 out */
567 {"Mono 2 Mux", "Left + Right", "Out3 Left + Right"},
568 {"Mono 2 Mux", "Inverted Mono 1", "MONO1"},
569 {"Mono 2 Mux", "Left", "Left Mixer"},
570 {"Mono 2 Mux", "Right", "Right Mixer"},
571 {"Mono Out 2", NULL, "Mono 2 Mux"},
572 {"MONO2", NULL, "Mono Out 2"},
573
574 /* out 3 */
575 {"Out3 Left + Right", NULL, "Left Mixer"},
576 {"Out3 Left + Right", NULL, "Right Mixer"},
577 {"Out3 Mux", "VREF", "VREF"},
578 {"Out3 Mux", "Left + Right", "Out3 Left + Right"},
579 {"Out3 Mux", "ROUT2", "ROUT2"},
580 {"Out 3", NULL, "Out3 Mux"},
581 {"OUT3", NULL, "Out 3"},
582
583 /* out 4 */
584 {"Out4 Mux", "VREF", "VREF"},
585 {"Out4 Mux", "Capture ST", "Playback Mixer"},
586 {"Out4 Mux", "LOUT2", "LOUT2"},
587 {"Out 4", NULL, "Out4 Mux"},
588 {"OUT4", NULL, "Out 4"},
589
590 /* record mixer */
591 {"Playback Mixer", "Left Capture Switch", "Left Mixer"},
592 {"Playback Mixer", "Voice Capture Switch", "Mono Mixer"},
593 {"Playback Mixer", "Right Capture Switch", "Right Mixer"},
594
595 /* Mic/SideTone Mux */
596 {"Mic Sidetone Mux", "Left PGA", "Left Capture Volume"},
597 {"Mic Sidetone Mux", "Right PGA", "Right Capture Volume"},
598 {"Mic Sidetone Mux", "Mic 1", "Mic 1 Volume"},
599 {"Mic Sidetone Mux", "Mic 2", "Mic 2 Volume"},
600
601 /* Capture Left Mux */
602 {"Capture Left Mux", "PGA", "Left Capture Volume"},
603 {"Capture Left Mux", "Line or RXP-RXN", "Line Left Mux"},
604 {"Capture Left Mux", "Line", "LINE1"},
605
606 /* Capture Right Mux */
607 {"Capture Right Mux", "PGA", "Right Capture Volume"},
608 {"Capture Right Mux", "Line or RXP-RXN", "Line Right Mux"},
609 {"Capture Right Mux", "Sidetone", "Playback Mixer"},
610
611 /* Mono Capture mixer-mux */
612 {"Capture Right Mixer", "Stereo", "Capture Right Mux"},
613 {"Capture Left Mixer", "Analogue Mix Left", "Capture Left Mux"},
614 {"Capture Left Mixer", "Analogue Mix Left", "Capture Right Mux"},
615 {"Capture Right Mixer", "Analogue Mix Right", "Capture Left Mux"},
616 {"Capture Right Mixer", "Analogue Mix Right", "Capture Right Mux"},
617 {"Capture Left Mixer", "Digital Mono Mix", "Capture Left Mux"},
618 {"Capture Left Mixer", "Digital Mono Mix", "Capture Right Mux"},
619 {"Capture Right Mixer", "Digital Mono Mix", "Capture Left Mux"},
620 {"Capture Right Mixer", "Digital Mono Mix", "Capture Right Mux"},
621
622 /* ADC */
623 {"Left ADC", NULL, "Capture Left Mixer"},
624 {"Right ADC", NULL, "Capture Right Mixer"},
625
626 /* Left Capture Volume */
627 {"Left Capture Volume", NULL, "ACIN"},
628
629 /* Right Capture Volume */
630 {"Right Capture Volume", NULL, "Mic 2 Volume"},
631
632 /* ALC Mixer */
633 {"ALC Mixer", "Line Capture Switch", "Line Mixer"},
634 {"ALC Mixer", "Mic2 Capture Switch", "Mic 2 Volume"},
635 {"ALC Mixer", "Mic1 Capture Switch", "Mic 1 Volume"},
636 {"ALC Mixer", "Rx Capture Switch", "Rx Mixer"},
637
638 /* Line Left Mux */
639 {"Line Left Mux", "Line 1", "LINE1"},
640 {"Line Left Mux", "Rx Mix", "Rx Mixer"},
641
642 /* Line Right Mux */
643 {"Line Right Mux", "Line 2", "LINE2"},
644 {"Line Right Mux", "Rx Mix", "Rx Mixer"},
645
646 /* Line Mono Mux */
647 {"Line Mono Mux", "Line Mix", "Line Mixer"},
648 {"Line Mono Mux", "Rx Mix", "Rx Mixer"},
649
650 /* Line Mixer/Mux */
651 {"Line Mixer", "Line 1 + 2", "LINE1"},
652 {"Line Mixer", "Line 1 - 2", "LINE1"},
653 {"Line Mixer", "Line 1 + 2", "LINE2"},
654 {"Line Mixer", "Line 1 - 2", "LINE2"},
655 {"Line Mixer", "Line 1", "LINE1"},
656 {"Line Mixer", "Line 2", "LINE2"},
657
658 /* Rx Mixer/Mux */
659 {"Rx Mixer", "RXP - RXN", "RXP"},
660 {"Rx Mixer", "RXP + RXN", "RXP"},
661 {"Rx Mixer", "RXP - RXN", "RXN"},
662 {"Rx Mixer", "RXP + RXN", "RXN"},
663 {"Rx Mixer", "RXP", "RXP"},
664 {"Rx Mixer", "RXN", "RXN"},
665
666 /* Mic 1 Volume */
667 {"Mic 1 Volume", NULL, "MIC1N"},
668 {"Mic 1 Volume", NULL, "Mic Selection Mux"},
669
670 /* Mic 2 Volume */
671 {"Mic 2 Volume", NULL, "MIC2N"},
672 {"Mic 2 Volume", NULL, "MIC2"},
673
674 /* Mic Selector Mux */
675 {"Mic Selection Mux", "Mic 1", "MIC1"},
676 {"Mic Selection Mux", "Mic 2", "MIC2N"},
677 {"Mic Selection Mux", "Mic 3", "MIC2"},
678
679 /* ACOP */
680 {"ACOP", NULL, "ALC Mixer"},
681 };
682
683 static int wm8753_add_widgets(struct snd_soc_codec *codec)
684 {
685 snd_soc_dapm_new_controls(codec, wm8753_dapm_widgets,
686 ARRAY_SIZE(wm8753_dapm_widgets));
687
688 snd_soc_dapm_add_routes(codec, audio_map, ARRAY_SIZE(audio_map));
689
690 snd_soc_dapm_new_widgets(codec);
691 return 0;
692 }
693
694 /* PLL divisors */
695 struct _pll_div {
696 u32 div2:1;
697 u32 n:4;
698 u32 k:24;
699 };
700
701 /* The size in bits of the pll divide multiplied by 10
702 * to allow rounding later */
703 #define FIXED_PLL_SIZE ((1 << 22) * 10)
704
705 static void pll_factors(struct _pll_div *pll_div, unsigned int target,
706 unsigned int source)
707 {
708 u64 Kpart;
709 unsigned int K, Ndiv, Nmod;
710
711 Ndiv = target / source;
712 if (Ndiv < 6) {
713 source >>= 1;
714 pll_div->div2 = 1;
715 Ndiv = target / source;
716 } else
717 pll_div->div2 = 0;
718
719 if ((Ndiv < 6) || (Ndiv > 12))
720 printk(KERN_WARNING
721 "wm8753: unsupported N = %d\n", Ndiv);
722
723 pll_div->n = Ndiv;
724 Nmod = target % source;
725 Kpart = FIXED_PLL_SIZE * (long long)Nmod;
726
727 do_div(Kpart, source);
728
729 K = Kpart & 0xFFFFFFFF;
730
731 /* Check if we need to round */
732 if ((K % 10) >= 5)
733 K += 5;
734
735 /* Move down to proper range now rounding is done */
736 K /= 10;
737
738 pll_div->k = K;
739 }
740
741 static int wm8753_set_dai_pll(struct snd_soc_dai *codec_dai,
742 int pll_id, unsigned int freq_in, unsigned int freq_out)
743 {
744 u16 reg, enable;
745 int offset;
746 struct snd_soc_codec *codec = codec_dai->codec;
747
748 if (pll_id < WM8753_PLL1 || pll_id > WM8753_PLL2)
749 return -ENODEV;
750
751 if (pll_id == WM8753_PLL1) {
752 offset = 0;
753 enable = 0x10;
754 reg = wm8753_read_reg_cache(codec, WM8753_CLOCK) & 0xffef;
755 } else {
756 offset = 4;
757 enable = 0x8;
758 reg = wm8753_read_reg_cache(codec, WM8753_CLOCK) & 0xfff7;
759 }
760
761 if (!freq_in || !freq_out) {
762 /* disable PLL */
763 wm8753_write(codec, WM8753_PLL1CTL1 + offset, 0x0026);
764 wm8753_write(codec, WM8753_CLOCK, reg);
765 return 0;
766 } else {
767 u16 value = 0;
768 struct _pll_div pll_div;
769
770 pll_factors(&pll_div, freq_out * 8, freq_in);
771
772 /* set up N and K PLL divisor ratios */
773 /* bits 8:5 = PLL_N, bits 3:0 = PLL_K[21:18] */
774 value = (pll_div.n << 5) + ((pll_div.k & 0x3c0000) >> 18);
775 wm8753_write(codec, WM8753_PLL1CTL2 + offset, value);
776
777 /* bits 8:0 = PLL_K[17:9] */
778 value = (pll_div.k & 0x03fe00) >> 9;
779 wm8753_write(codec, WM8753_PLL1CTL3 + offset, value);
780
781 /* bits 8:0 = PLL_K[8:0] */
782 value = pll_div.k & 0x0001ff;
783 wm8753_write(codec, WM8753_PLL1CTL4 + offset, value);
784
785 /* set PLL as input and enable */
786 wm8753_write(codec, WM8753_PLL1CTL1 + offset, 0x0027 |
787 (pll_div.div2 << 3));
788 wm8753_write(codec, WM8753_CLOCK, reg | enable);
789 }
790 return 0;
791 }
792
793 struct _coeff_div {
794 u32 mclk;
795 u32 rate;
796 u8 sr:5;
797 u8 usb:1;
798 };
799
800 /* codec hifi mclk (after PLL) clock divider coefficients */
801 static const struct _coeff_div coeff_div[] = {
802 /* 8k */
803 {12288000, 8000, 0x6, 0x0},
804 {11289600, 8000, 0x16, 0x0},
805 {18432000, 8000, 0x7, 0x0},
806 {16934400, 8000, 0x17, 0x0},
807 {12000000, 8000, 0x6, 0x1},
808
809 /* 11.025k */
810 {11289600, 11025, 0x18, 0x0},
811 {16934400, 11025, 0x19, 0x0},
812 {12000000, 11025, 0x19, 0x1},
813
814 /* 16k */
815 {12288000, 16000, 0xa, 0x0},
816 {18432000, 16000, 0xb, 0x0},
817 {12000000, 16000, 0xa, 0x1},
818
819 /* 22.05k */
820 {11289600, 22050, 0x1a, 0x0},
821 {16934400, 22050, 0x1b, 0x0},
822 {12000000, 22050, 0x1b, 0x1},
823
824 /* 32k */
825 {12288000, 32000, 0xc, 0x0},
826 {18432000, 32000, 0xd, 0x0},
827 {12000000, 32000, 0xa, 0x1},
828
829 /* 44.1k */
830 {11289600, 44100, 0x10, 0x0},
831 {16934400, 44100, 0x11, 0x0},
832 {12000000, 44100, 0x11, 0x1},
833
834 /* 48k */
835 {12288000, 48000, 0x0, 0x0},
836 {18432000, 48000, 0x1, 0x0},
837 {12000000, 48000, 0x0, 0x1},
838
839 /* 88.2k */
840 {11289600, 88200, 0x1e, 0x0},
841 {16934400, 88200, 0x1f, 0x0},
842 {12000000, 88200, 0x1f, 0x1},
843
844 /* 96k */
845 {12288000, 96000, 0xe, 0x0},
846 {18432000, 96000, 0xf, 0x0},
847 {12000000, 96000, 0xe, 0x1},
848 };
849
850 static int get_coeff(int mclk, int rate)
851 {
852 int i;
853
854 for (i = 0; i < ARRAY_SIZE(coeff_div); i++) {
855 if (coeff_div[i].rate == rate && coeff_div[i].mclk == mclk)
856 return i;
857 }
858 return -EINVAL;
859 }
860
861 /*
862 * Clock after PLL and dividers
863 */
864 static int wm8753_set_dai_sysclk(struct snd_soc_dai *codec_dai,
865 int clk_id, unsigned int freq, int dir)
866 {
867 struct snd_soc_codec *codec = codec_dai->codec;
868 struct wm8753_priv *wm8753 = codec->private_data;
869
870 switch (freq) {
871 case 11289600:
872 case 12000000:
873 case 12288000:
874 case 16934400:
875 case 18432000:
876 if (clk_id == WM8753_MCLK) {
877 wm8753->sysclk = freq;
878 return 0;
879 } else if (clk_id == WM8753_PCMCLK) {
880 wm8753->pcmclk = freq;
881 return 0;
882 }
883 break;
884 }
885 return -EINVAL;
886 }
887
888 /*
889 * Set's ADC and Voice DAC format.
890 */
891 static int wm8753_vdac_adc_set_dai_fmt(struct snd_soc_dai *codec_dai,
892 unsigned int fmt)
893 {
894 struct snd_soc_codec *codec = codec_dai->codec;
895 u16 voice = wm8753_read_reg_cache(codec, WM8753_PCM) & 0x01ec;
896
897 /* interface format */
898 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
899 case SND_SOC_DAIFMT_I2S:
900 voice |= 0x0002;
901 break;
902 case SND_SOC_DAIFMT_RIGHT_J:
903 break;
904 case SND_SOC_DAIFMT_LEFT_J:
905 voice |= 0x0001;
906 break;
907 case SND_SOC_DAIFMT_DSP_A:
908 voice |= 0x0003;
909 break;
910 case SND_SOC_DAIFMT_DSP_B:
911 voice |= 0x0013;
912 break;
913 default:
914 return -EINVAL;
915 }
916
917 wm8753_write(codec, WM8753_PCM, voice);
918 return 0;
919 }
920
921 /*
922 * Set PCM DAI bit size and sample rate.
923 */
924 static int wm8753_pcm_hw_params(struct snd_pcm_substream *substream,
925 struct snd_pcm_hw_params *params,
926 struct snd_soc_dai *dai)
927 {
928 struct snd_soc_pcm_runtime *rtd = substream->private_data;
929 struct snd_soc_device *socdev = rtd->socdev;
930 struct snd_soc_codec *codec = socdev->codec;
931 struct wm8753_priv *wm8753 = codec->private_data;
932 u16 voice = wm8753_read_reg_cache(codec, WM8753_PCM) & 0x01f3;
933 u16 srate = wm8753_read_reg_cache(codec, WM8753_SRATE1) & 0x017f;
934
935 /* bit size */
936 switch (params_format(params)) {
937 case SNDRV_PCM_FORMAT_S16_LE:
938 break;
939 case SNDRV_PCM_FORMAT_S20_3LE:
940 voice |= 0x0004;
941 break;
942 case SNDRV_PCM_FORMAT_S24_LE:
943 voice |= 0x0008;
944 break;
945 case SNDRV_PCM_FORMAT_S32_LE:
946 voice |= 0x000c;
947 break;
948 }
949
950 /* sample rate */
951 if (params_rate(params) * 384 == wm8753->pcmclk)
952 srate |= 0x80;
953 wm8753_write(codec, WM8753_SRATE1, srate);
954
955 wm8753_write(codec, WM8753_PCM, voice);
956 return 0;
957 }
958
959 /*
960 * Set's PCM dai fmt and BCLK.
961 */
962 static int wm8753_pcm_set_dai_fmt(struct snd_soc_dai *codec_dai,
963 unsigned int fmt)
964 {
965 struct snd_soc_codec *codec = codec_dai->codec;
966 u16 voice, ioctl;
967
968 voice = wm8753_read_reg_cache(codec, WM8753_PCM) & 0x011f;
969 ioctl = wm8753_read_reg_cache(codec, WM8753_IOCTL) & 0x015d;
970
971 /* set master/slave audio interface */
972 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
973 case SND_SOC_DAIFMT_CBS_CFS:
974 break;
975 case SND_SOC_DAIFMT_CBM_CFM:
976 ioctl |= 0x2;
977 case SND_SOC_DAIFMT_CBM_CFS:
978 voice |= 0x0040;
979 break;
980 default:
981 return -EINVAL;
982 }
983
984 /* clock inversion */
985 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
986 case SND_SOC_DAIFMT_DSP_A:
987 case SND_SOC_DAIFMT_DSP_B:
988 /* frame inversion not valid for DSP modes */
989 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
990 case SND_SOC_DAIFMT_NB_NF:
991 break;
992 case SND_SOC_DAIFMT_IB_NF:
993 voice |= 0x0080;
994 break;
995 default:
996 return -EINVAL;
997 }
998 break;
999 case SND_SOC_DAIFMT_I2S:
1000 case SND_SOC_DAIFMT_RIGHT_J:
1001 case SND_SOC_DAIFMT_LEFT_J:
1002 voice &= ~0x0010;
1003 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
1004 case SND_SOC_DAIFMT_NB_NF:
1005 break;
1006 case SND_SOC_DAIFMT_IB_IF:
1007 voice |= 0x0090;
1008 break;
1009 case SND_SOC_DAIFMT_IB_NF:
1010 voice |= 0x0080;
1011 break;
1012 case SND_SOC_DAIFMT_NB_IF:
1013 voice |= 0x0010;
1014 break;
1015 default:
1016 return -EINVAL;
1017 }
1018 break;
1019 default:
1020 return -EINVAL;
1021 }
1022
1023 wm8753_write(codec, WM8753_PCM, voice);
1024 wm8753_write(codec, WM8753_IOCTL, ioctl);
1025 return 0;
1026 }
1027
1028 static int wm8753_set_dai_clkdiv(struct snd_soc_dai *codec_dai,
1029 int div_id, int div)
1030 {
1031 struct snd_soc_codec *codec = codec_dai->codec;
1032 u16 reg;
1033
1034 switch (div_id) {
1035 case WM8753_PCMDIV:
1036 reg = wm8753_read_reg_cache(codec, WM8753_CLOCK) & 0x003f;
1037 wm8753_write(codec, WM8753_CLOCK, reg | div);
1038 break;
1039 case WM8753_BCLKDIV:
1040 reg = wm8753_read_reg_cache(codec, WM8753_SRATE2) & 0x01c7;
1041 wm8753_write(codec, WM8753_SRATE2, reg | div);
1042 break;
1043 case WM8753_VXCLKDIV:
1044 reg = wm8753_read_reg_cache(codec, WM8753_SRATE2) & 0x003f;
1045 wm8753_write(codec, WM8753_SRATE2, reg | div);
1046 break;
1047 default:
1048 return -EINVAL;
1049 }
1050 return 0;
1051 }
1052
1053 /*
1054 * Set's HiFi DAC format.
1055 */
1056 static int wm8753_hdac_set_dai_fmt(struct snd_soc_dai *codec_dai,
1057 unsigned int fmt)
1058 {
1059 struct snd_soc_codec *codec = codec_dai->codec;
1060 u16 hifi = wm8753_read_reg_cache(codec, WM8753_HIFI) & 0x01e0;
1061
1062 /* interface format */
1063 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
1064 case SND_SOC_DAIFMT_I2S:
1065 hifi |= 0x0002;
1066 break;
1067 case SND_SOC_DAIFMT_RIGHT_J:
1068 break;
1069 case SND_SOC_DAIFMT_LEFT_J:
1070 hifi |= 0x0001;
1071 break;
1072 case SND_SOC_DAIFMT_DSP_A:
1073 hifi |= 0x0003;
1074 break;
1075 case SND_SOC_DAIFMT_DSP_B:
1076 hifi |= 0x0013;
1077 break;
1078 default:
1079 return -EINVAL;
1080 }
1081
1082 wm8753_write(codec, WM8753_HIFI, hifi);
1083 return 0;
1084 }
1085
1086 /*
1087 * Set's I2S DAI format.
1088 */
1089 static int wm8753_i2s_set_dai_fmt(struct snd_soc_dai *codec_dai,
1090 unsigned int fmt)
1091 {
1092 struct snd_soc_codec *codec = codec_dai->codec;
1093 u16 ioctl, hifi;
1094
1095 hifi = wm8753_read_reg_cache(codec, WM8753_HIFI) & 0x011f;
1096 ioctl = wm8753_read_reg_cache(codec, WM8753_IOCTL) & 0x00ae;
1097
1098 /* set master/slave audio interface */
1099 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
1100 case SND_SOC_DAIFMT_CBS_CFS:
1101 break;
1102 case SND_SOC_DAIFMT_CBM_CFM:
1103 ioctl |= 0x1;
1104 case SND_SOC_DAIFMT_CBM_CFS:
1105 hifi |= 0x0040;
1106 break;
1107 default:
1108 return -EINVAL;
1109 }
1110
1111 /* clock inversion */
1112 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
1113 case SND_SOC_DAIFMT_DSP_A:
1114 case SND_SOC_DAIFMT_DSP_B:
1115 /* frame inversion not valid for DSP modes */
1116 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
1117 case SND_SOC_DAIFMT_NB_NF:
1118 break;
1119 case SND_SOC_DAIFMT_IB_NF:
1120 hifi |= 0x0080;
1121 break;
1122 default:
1123 return -EINVAL;
1124 }
1125 break;
1126 case SND_SOC_DAIFMT_I2S:
1127 case SND_SOC_DAIFMT_RIGHT_J:
1128 case SND_SOC_DAIFMT_LEFT_J:
1129 hifi &= ~0x0010;
1130 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
1131 case SND_SOC_DAIFMT_NB_NF:
1132 break;
1133 case SND_SOC_DAIFMT_IB_IF:
1134 hifi |= 0x0090;
1135 break;
1136 case SND_SOC_DAIFMT_IB_NF:
1137 hifi |= 0x0080;
1138 break;
1139 case SND_SOC_DAIFMT_NB_IF:
1140 hifi |= 0x0010;
1141 break;
1142 default:
1143 return -EINVAL;
1144 }
1145 break;
1146 default:
1147 return -EINVAL;
1148 }
1149
1150 wm8753_write(codec, WM8753_HIFI, hifi);
1151 wm8753_write(codec, WM8753_IOCTL, ioctl);
1152 return 0;
1153 }
1154
1155 /*
1156 * Set PCM DAI bit size and sample rate.
1157 */
1158 static int wm8753_i2s_hw_params(struct snd_pcm_substream *substream,
1159 struct snd_pcm_hw_params *params,
1160 struct snd_soc_dai *dai)
1161 {
1162 struct snd_soc_pcm_runtime *rtd = substream->private_data;
1163 struct snd_soc_device *socdev = rtd->socdev;
1164 struct snd_soc_codec *codec = socdev->codec;
1165 struct wm8753_priv *wm8753 = codec->private_data;
1166 u16 srate = wm8753_read_reg_cache(codec, WM8753_SRATE1) & 0x01c0;
1167 u16 hifi = wm8753_read_reg_cache(codec, WM8753_HIFI) & 0x01f3;
1168 int coeff;
1169
1170 /* is digital filter coefficient valid ? */
1171 coeff = get_coeff(wm8753->sysclk, params_rate(params));
1172 if (coeff < 0) {
1173 printk(KERN_ERR "wm8753 invalid MCLK or rate\n");
1174 return coeff;
1175 }
1176 wm8753_write(codec, WM8753_SRATE1, srate | (coeff_div[coeff].sr << 1) |
1177 coeff_div[coeff].usb);
1178
1179 /* bit size */
1180 switch (params_format(params)) {
1181 case SNDRV_PCM_FORMAT_S16_LE:
1182 break;
1183 case SNDRV_PCM_FORMAT_S20_3LE:
1184 hifi |= 0x0004;
1185 break;
1186 case SNDRV_PCM_FORMAT_S24_LE:
1187 hifi |= 0x0008;
1188 break;
1189 case SNDRV_PCM_FORMAT_S32_LE:
1190 hifi |= 0x000c;
1191 break;
1192 }
1193
1194 wm8753_write(codec, WM8753_HIFI, hifi);
1195 return 0;
1196 }
1197
1198 static int wm8753_mode1v_set_dai_fmt(struct snd_soc_dai *codec_dai,
1199 unsigned int fmt)
1200 {
1201 struct snd_soc_codec *codec = codec_dai->codec;
1202 u16 clock;
1203
1204 /* set clk source as pcmclk */
1205 clock = wm8753_read_reg_cache(codec, WM8753_CLOCK) & 0xfffb;
1206 wm8753_write(codec, WM8753_CLOCK, clock);
1207
1208 if (wm8753_vdac_adc_set_dai_fmt(codec_dai, fmt) < 0)
1209 return -EINVAL;
1210 return wm8753_pcm_set_dai_fmt(codec_dai, fmt);
1211 }
1212
1213 static int wm8753_mode1h_set_dai_fmt(struct snd_soc_dai *codec_dai,
1214 unsigned int fmt)
1215 {
1216 if (wm8753_hdac_set_dai_fmt(codec_dai, fmt) < 0)
1217 return -EINVAL;
1218 return wm8753_i2s_set_dai_fmt(codec_dai, fmt);
1219 }
1220
1221 static int wm8753_mode2_set_dai_fmt(struct snd_soc_dai *codec_dai,
1222 unsigned int fmt)
1223 {
1224 struct snd_soc_codec *codec = codec_dai->codec;
1225 u16 clock;
1226
1227 /* set clk source as pcmclk */
1228 clock = wm8753_read_reg_cache(codec, WM8753_CLOCK) & 0xfffb;
1229 wm8753_write(codec, WM8753_CLOCK, clock);
1230
1231 if (wm8753_vdac_adc_set_dai_fmt(codec_dai, fmt) < 0)
1232 return -EINVAL;
1233 return wm8753_i2s_set_dai_fmt(codec_dai, fmt);
1234 }
1235
1236 static int wm8753_mode3_4_set_dai_fmt(struct snd_soc_dai *codec_dai,
1237 unsigned int fmt)
1238 {
1239 struct snd_soc_codec *codec = codec_dai->codec;
1240 u16 clock;
1241
1242 /* set clk source as mclk */
1243 clock = wm8753_read_reg_cache(codec, WM8753_CLOCK) & 0xfffb;
1244 wm8753_write(codec, WM8753_CLOCK, clock | 0x4);
1245
1246 if (wm8753_hdac_set_dai_fmt(codec_dai, fmt) < 0)
1247 return -EINVAL;
1248 if (wm8753_vdac_adc_set_dai_fmt(codec_dai, fmt) < 0)
1249 return -EINVAL;
1250 return wm8753_i2s_set_dai_fmt(codec_dai, fmt);
1251 }
1252
1253 static int wm8753_mute(struct snd_soc_dai *dai, int mute)
1254 {
1255 struct snd_soc_codec *codec = dai->codec;
1256 u16 mute_reg = wm8753_read_reg_cache(codec, WM8753_DAC) & 0xfff7;
1257
1258 /* the digital mute covers the HiFi and Voice DAC's on the WM8753.
1259 * make sure we check if they are not both active when we mute */
1260 if (mute && dai->id == 1) {
1261 if (!wm8753_dai[WM8753_DAI_VOICE].playback.active ||
1262 !wm8753_dai[WM8753_DAI_HIFI].playback.active)
1263 wm8753_write(codec, WM8753_DAC, mute_reg | 0x8);
1264 } else {
1265 if (mute)
1266 wm8753_write(codec, WM8753_DAC, mute_reg | 0x8);
1267 else
1268 wm8753_write(codec, WM8753_DAC, mute_reg);
1269 }
1270
1271 return 0;
1272 }
1273
1274 static int wm8753_set_bias_level(struct snd_soc_codec *codec,
1275 enum snd_soc_bias_level level)
1276 {
1277 u16 pwr_reg = wm8753_read_reg_cache(codec, WM8753_PWR1) & 0xfe3e;
1278
1279 switch (level) {
1280 case SND_SOC_BIAS_ON:
1281 /* set vmid to 50k and unmute dac */
1282 wm8753_write(codec, WM8753_PWR1, pwr_reg | 0x00c0);
1283 break;
1284 case SND_SOC_BIAS_PREPARE:
1285 /* set vmid to 5k for quick power up */
1286 wm8753_write(codec, WM8753_PWR1, pwr_reg | 0x01c1);
1287 break;
1288 case SND_SOC_BIAS_STANDBY:
1289 /* mute dac and set vmid to 500k, enable VREF */
1290 wm8753_write(codec, WM8753_PWR1, pwr_reg | 0x0141);
1291 break;
1292 case SND_SOC_BIAS_OFF:
1293 wm8753_write(codec, WM8753_PWR1, 0x0001);
1294 break;
1295 }
1296 codec->bias_level = level;
1297 return 0;
1298 }
1299
1300 #define WM8753_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\
1301 SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 |\
1302 SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 |\
1303 SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000)
1304
1305 #define WM8753_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
1306 SNDRV_PCM_FMTBIT_S24_LE)
1307
1308 /*
1309 * The WM8753 supports upto 4 different and mutually exclusive DAI
1310 * configurations. This gives 2 PCM's available for use, hifi and voice.
1311 * NOTE: The Voice PCM cannot play or capture audio to the CPU as it's DAI
1312 * is connected between the wm8753 and a BT codec or GSM modem.
1313 *
1314 * 1. Voice over PCM DAI - HIFI DAC over HIFI DAI
1315 * 2. Voice over HIFI DAI - HIFI disabled
1316 * 3. Voice disabled - HIFI over HIFI
1317 * 4. Voice disabled - HIFI over HIFI, uses voice DAI LRC for capture
1318 */
1319 static const struct snd_soc_dai wm8753_all_dai[] = {
1320 /* DAI HiFi mode 1 */
1321 { .name = "WM8753 HiFi",
1322 .id = 1,
1323 .playback = {
1324 .stream_name = "HiFi Playback",
1325 .channels_min = 1,
1326 .channels_max = 2,
1327 .rates = WM8753_RATES,
1328 .formats = WM8753_FORMATS},
1329 .capture = { /* dummy for fast DAI switching */
1330 .stream_name = "Capture",
1331 .channels_min = 1,
1332 .channels_max = 2,
1333 .rates = WM8753_RATES,
1334 .formats = WM8753_FORMATS},
1335 .ops = {
1336 .hw_params = wm8753_i2s_hw_params,
1337 .digital_mute = wm8753_mute,
1338 .set_fmt = wm8753_mode1h_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 /* DAI Voice mode 1 */
1345 { .name = "WM8753 Voice",
1346 .id = 1,
1347 .playback = {
1348 .stream_name = "Voice Playback",
1349 .channels_min = 1,
1350 .channels_max = 1,
1351 .rates = WM8753_RATES,
1352 .formats = WM8753_FORMATS,},
1353 .capture = {
1354 .stream_name = "Capture",
1355 .channels_min = 1,
1356 .channels_max = 2,
1357 .rates = WM8753_RATES,
1358 .formats = WM8753_FORMATS,},
1359 .ops = {
1360 .hw_params = wm8753_pcm_hw_params,
1361 .digital_mute = wm8753_mute,
1362 .set_fmt = wm8753_mode1v_set_dai_fmt,
1363 .set_clkdiv = wm8753_set_dai_clkdiv,
1364 .set_pll = wm8753_set_dai_pll,
1365 .set_sysclk = wm8753_set_dai_sysclk,
1366 },
1367 },
1368 /* DAI HiFi mode 2 - dummy */
1369 { .name = "WM8753 HiFi",
1370 .id = 2,
1371 },
1372 /* DAI Voice mode 2 */
1373 { .name = "WM8753 Voice",
1374 .id = 2,
1375 .playback = {
1376 .stream_name = "Voice Playback",
1377 .channels_min = 1,
1378 .channels_max = 1,
1379 .rates = WM8753_RATES,
1380 .formats = WM8753_FORMATS,},
1381 .capture = {
1382 .stream_name = "Capture",
1383 .channels_min = 1,
1384 .channels_max = 2,
1385 .rates = WM8753_RATES,
1386 .formats = WM8753_FORMATS,},
1387 .ops = {
1388 .hw_params = wm8753_pcm_hw_params,
1389 .digital_mute = wm8753_mute,
1390 .set_fmt = wm8753_mode2_set_dai_fmt,
1391 .set_clkdiv = wm8753_set_dai_clkdiv,
1392 .set_pll = wm8753_set_dai_pll,
1393 .set_sysclk = wm8753_set_dai_sysclk,
1394 },
1395 },
1396 /* DAI HiFi mode 3 */
1397 { .name = "WM8753 HiFi",
1398 .id = 3,
1399 .playback = {
1400 .stream_name = "HiFi Playback",
1401 .channels_min = 1,
1402 .channels_max = 2,
1403 .rates = WM8753_RATES,
1404 .formats = WM8753_FORMATS,},
1405 .capture = {
1406 .stream_name = "Capture",
1407 .channels_min = 1,
1408 .channels_max = 2,
1409 .rates = WM8753_RATES,
1410 .formats = WM8753_FORMATS,},
1411 .ops = {
1412 .hw_params = wm8753_i2s_hw_params,
1413 .digital_mute = wm8753_mute,
1414 .set_fmt = wm8753_mode3_4_set_dai_fmt,
1415 .set_clkdiv = wm8753_set_dai_clkdiv,
1416 .set_pll = wm8753_set_dai_pll,
1417 .set_sysclk = wm8753_set_dai_sysclk,
1418 },
1419 },
1420 /* DAI Voice mode 3 - dummy */
1421 { .name = "WM8753 Voice",
1422 .id = 3,
1423 },
1424 /* DAI HiFi mode 4 */
1425 { .name = "WM8753 HiFi",
1426 .id = 4,
1427 .playback = {
1428 .stream_name = "HiFi Playback",
1429 .channels_min = 1,
1430 .channels_max = 2,
1431 .rates = WM8753_RATES,
1432 .formats = WM8753_FORMATS,},
1433 .capture = {
1434 .stream_name = "Capture",
1435 .channels_min = 1,
1436 .channels_max = 2,
1437 .rates = WM8753_RATES,
1438 .formats = WM8753_FORMATS,},
1439 .ops = {
1440 .hw_params = wm8753_i2s_hw_params,
1441 .digital_mute = wm8753_mute,
1442 .set_fmt = wm8753_mode3_4_set_dai_fmt,
1443 .set_clkdiv = wm8753_set_dai_clkdiv,
1444 .set_pll = wm8753_set_dai_pll,
1445 .set_sysclk = wm8753_set_dai_sysclk,
1446 },
1447 },
1448 /* DAI Voice mode 4 - dummy */
1449 { .name = "WM8753 Voice",
1450 .id = 4,
1451 },
1452 };
1453
1454 struct snd_soc_dai wm8753_dai[] = {
1455 {
1456 .name = "WM8753 DAI 0",
1457 },
1458 {
1459 .name = "WM8753 DAI 1",
1460 },
1461 };
1462 EXPORT_SYMBOL_GPL(wm8753_dai);
1463
1464 static void wm8753_set_dai_mode(struct snd_soc_codec *codec, unsigned int mode)
1465 {
1466 if (mode < 4) {
1467 int playback_active, capture_active, codec_active, pop_wait;
1468 void *private_data;
1469
1470 playback_active = wm8753_dai[0].playback.active;
1471 capture_active = wm8753_dai[0].capture.active;
1472 codec_active = wm8753_dai[0].active;
1473 private_data = wm8753_dai[0].private_data;
1474 pop_wait = wm8753_dai[0].pop_wait;
1475 wm8753_dai[0] = wm8753_all_dai[mode << 1];
1476 wm8753_dai[0].playback.active = playback_active;
1477 wm8753_dai[0].capture.active = capture_active;
1478 wm8753_dai[0].active = codec_active;
1479 wm8753_dai[0].private_data = private_data;
1480 wm8753_dai[0].pop_wait = pop_wait;
1481
1482 playback_active = wm8753_dai[1].playback.active;
1483 capture_active = wm8753_dai[1].capture.active;
1484 codec_active = wm8753_dai[1].active;
1485 private_data = wm8753_dai[1].private_data;
1486 pop_wait = wm8753_dai[1].pop_wait;
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 }
1494 wm8753_dai[0].codec = codec;
1495 wm8753_dai[1].codec = codec;
1496 }
1497
1498 static void wm8753_work(struct work_struct *work)
1499 {
1500 struct snd_soc_codec *codec =
1501 container_of(work, struct snd_soc_codec, delayed_work.work);
1502 wm8753_set_bias_level(codec, codec->bias_level);
1503 }
1504
1505 static int wm8753_suspend(struct platform_device *pdev, pm_message_t state)
1506 {
1507 struct snd_soc_device *socdev = platform_get_drvdata(pdev);
1508 struct snd_soc_codec *codec = socdev->codec;
1509
1510 /* we only need to suspend if we are a valid card */
1511 if (!codec->card)
1512 return 0;
1513
1514 wm8753_set_bias_level(codec, SND_SOC_BIAS_OFF);
1515 return 0;
1516 }
1517
1518 static int wm8753_resume(struct platform_device *pdev)
1519 {
1520 struct snd_soc_device *socdev = platform_get_drvdata(pdev);
1521 struct snd_soc_codec *codec = socdev->codec;
1522 int i;
1523 u8 data[2];
1524 u16 *cache = codec->reg_cache;
1525
1526 /* we only need to resume if we are a valid card */
1527 if (!codec->card)
1528 return 0;
1529
1530 /* Sync reg_cache with the hardware */
1531 for (i = 0; i < ARRAY_SIZE(wm8753_reg); i++) {
1532 if (i + 1 == WM8753_RESET)
1533 continue;
1534 data[0] = ((i + 1) << 1) | ((cache[i] >> 8) & 0x0001);
1535 data[1] = cache[i] & 0x00ff;
1536 codec->hw_write(codec->control_data, data, 2);
1537 }
1538
1539 wm8753_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
1540
1541 /* charge wm8753 caps */
1542 if (codec->suspend_bias_level == SND_SOC_BIAS_ON) {
1543 wm8753_set_bias_level(codec, SND_SOC_BIAS_PREPARE);
1544 codec->bias_level = SND_SOC_BIAS_ON;
1545 schedule_delayed_work(&codec->delayed_work,
1546 msecs_to_jiffies(caps_charge));
1547 }
1548
1549 return 0;
1550 }
1551
1552 /*
1553 * initialise the WM8753 driver
1554 * register the mixer and dsp interfaces with the kernel
1555 */
1556 static int wm8753_init(struct snd_soc_device *socdev)
1557 {
1558 struct snd_soc_codec *codec = socdev->codec;
1559 int reg, ret = 0;
1560
1561 codec->name = "WM8753";
1562 codec->owner = THIS_MODULE;
1563 codec->read = wm8753_read_reg_cache;
1564 codec->write = wm8753_write;
1565 codec->set_bias_level = wm8753_set_bias_level;
1566 codec->dai = wm8753_dai;
1567 codec->num_dai = 2;
1568 codec->reg_cache_size = ARRAY_SIZE(wm8753_reg);
1569 codec->reg_cache = kmemdup(wm8753_reg, sizeof(wm8753_reg), GFP_KERNEL);
1570
1571 if (codec->reg_cache == NULL)
1572 return -ENOMEM;
1573
1574 wm8753_set_dai_mode(codec, 0);
1575
1576 wm8753_reset(codec);
1577
1578 /* register pcms */
1579 ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1);
1580 if (ret < 0) {
1581 printk(KERN_ERR "wm8753: failed to create pcms\n");
1582 goto pcm_err;
1583 }
1584
1585 /* charge output caps */
1586 wm8753_set_bias_level(codec, SND_SOC_BIAS_PREPARE);
1587 codec->bias_level = SND_SOC_BIAS_STANDBY;
1588 schedule_delayed_work(&codec->delayed_work,
1589 msecs_to_jiffies(caps_charge));
1590
1591 /* set the update bits */
1592 reg = wm8753_read_reg_cache(codec, WM8753_LDAC);
1593 wm8753_write(codec, WM8753_LDAC, reg | 0x0100);
1594 reg = wm8753_read_reg_cache(codec, WM8753_RDAC);
1595 wm8753_write(codec, WM8753_RDAC, reg | 0x0100);
1596 reg = wm8753_read_reg_cache(codec, WM8753_LADC);
1597 wm8753_write(codec, WM8753_LADC, reg | 0x0100);
1598 reg = wm8753_read_reg_cache(codec, WM8753_RADC);
1599 wm8753_write(codec, WM8753_RADC, reg | 0x0100);
1600 reg = wm8753_read_reg_cache(codec, WM8753_LOUT1V);
1601 wm8753_write(codec, WM8753_LOUT1V, reg | 0x0100);
1602 reg = wm8753_read_reg_cache(codec, WM8753_ROUT1V);
1603 wm8753_write(codec, WM8753_ROUT1V, reg | 0x0100);
1604 reg = wm8753_read_reg_cache(codec, WM8753_LOUT2V);
1605 wm8753_write(codec, WM8753_LOUT2V, reg | 0x0100);
1606 reg = wm8753_read_reg_cache(codec, WM8753_ROUT2V);
1607 wm8753_write(codec, WM8753_ROUT2V, reg | 0x0100);
1608 reg = wm8753_read_reg_cache(codec, WM8753_LINVOL);
1609 wm8753_write(codec, WM8753_LINVOL, reg | 0x0100);
1610 reg = wm8753_read_reg_cache(codec, WM8753_RINVOL);
1611 wm8753_write(codec, WM8753_RINVOL, reg | 0x0100);
1612
1613 wm8753_add_controls(codec);
1614 wm8753_add_widgets(codec);
1615 ret = snd_soc_init_card(socdev);
1616 if (ret < 0) {
1617 printk(KERN_ERR "wm8753: failed to register card\n");
1618 goto card_err;
1619 }
1620
1621 return ret;
1622
1623 card_err:
1624 snd_soc_free_pcms(socdev);
1625 snd_soc_dapm_free(socdev);
1626 pcm_err:
1627 kfree(codec->reg_cache);
1628 return ret;
1629 }
1630
1631 /* If the i2c layer weren't so broken, we could pass this kind of data
1632 around */
1633 static struct snd_soc_device *wm8753_socdev;
1634
1635 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
1636
1637 /*
1638 * WM8753 2 wire address is determined by GPIO5
1639 * state during powerup.
1640 * low = 0x1a
1641 * high = 0x1b
1642 */
1643
1644 static int wm8753_i2c_probe(struct i2c_client *i2c,
1645 const struct i2c_device_id *id)
1646 {
1647 struct snd_soc_device *socdev = wm8753_socdev;
1648 struct snd_soc_codec *codec = socdev->codec;
1649 int ret;
1650
1651 i2c_set_clientdata(i2c, codec);
1652 codec->control_data = i2c;
1653
1654 ret = wm8753_init(socdev);
1655 if (ret < 0)
1656 pr_err("failed to initialise WM8753\n");
1657
1658 return ret;
1659 }
1660
1661 static int wm8753_i2c_remove(struct i2c_client *client)
1662 {
1663 struct snd_soc_codec *codec = i2c_get_clientdata(client);
1664 kfree(codec->reg_cache);
1665 return 0;
1666 }
1667
1668 static const struct i2c_device_id wm8753_i2c_id[] = {
1669 { "wm8753", 0 },
1670 { }
1671 };
1672 MODULE_DEVICE_TABLE(i2c, wm8753_i2c_id);
1673
1674 static struct i2c_driver wm8753_i2c_driver = {
1675 .driver = {
1676 .name = "WM8753 I2C Codec",
1677 .owner = THIS_MODULE,
1678 },
1679 .probe = wm8753_i2c_probe,
1680 .remove = wm8753_i2c_remove,
1681 .id_table = wm8753_i2c_id,
1682 };
1683
1684 static int wm8753_add_i2c_device(struct platform_device *pdev,
1685 const struct wm8753_setup_data *setup)
1686 {
1687 struct i2c_board_info info;
1688 struct i2c_adapter *adapter;
1689 struct i2c_client *client;
1690 int ret;
1691
1692 ret = i2c_add_driver(&wm8753_i2c_driver);
1693 if (ret != 0) {
1694 dev_err(&pdev->dev, "can't add i2c driver\n");
1695 return ret;
1696 }
1697
1698 memset(&info, 0, sizeof(struct i2c_board_info));
1699 info.addr = setup->i2c_address;
1700 strlcpy(info.type, "wm8753", I2C_NAME_SIZE);
1701
1702 adapter = i2c_get_adapter(setup->i2c_bus);
1703 if (!adapter) {
1704 dev_err(&pdev->dev, "can't get i2c adapter %d\n",
1705 setup->i2c_bus);
1706 goto err_driver;
1707 }
1708
1709 client = i2c_new_device(adapter, &info);
1710 i2c_put_adapter(adapter);
1711 if (!client) {
1712 dev_err(&pdev->dev, "can't add i2c device at 0x%x\n",
1713 (unsigned int)info.addr);
1714 goto err_driver;
1715 }
1716
1717 return 0;
1718
1719 err_driver:
1720 i2c_del_driver(&wm8753_i2c_driver);
1721 return -ENODEV;
1722 }
1723 #endif
1724
1725 #if defined(CONFIG_SPI_MASTER)
1726 static int __devinit wm8753_spi_probe(struct spi_device *spi)
1727 {
1728 struct snd_soc_device *socdev = wm8753_socdev;
1729 struct snd_soc_codec *codec = socdev->codec;
1730 int ret;
1731
1732 codec->control_data = spi;
1733
1734 ret = wm8753_init(socdev);
1735 if (ret < 0)
1736 dev_err(&spi->dev, "failed to initialise WM8753\n");
1737
1738 return ret;
1739 }
1740
1741 static int __devexit wm8753_spi_remove(struct spi_device *spi)
1742 {
1743 return 0;
1744 }
1745
1746 static struct spi_driver wm8753_spi_driver = {
1747 .driver = {
1748 .name = "wm8753",
1749 .bus = &spi_bus_type,
1750 .owner = THIS_MODULE,
1751 },
1752 .probe = wm8753_spi_probe,
1753 .remove = __devexit_p(wm8753_spi_remove),
1754 };
1755
1756 static int wm8753_spi_write(struct spi_device *spi, const char *data, int len)
1757 {
1758 struct spi_transfer t;
1759 struct spi_message m;
1760 u8 msg[2];
1761
1762 if (len <= 0)
1763 return 0;
1764
1765 msg[0] = data[0];
1766 msg[1] = data[1];
1767
1768 spi_message_init(&m);
1769 memset(&t, 0, (sizeof t));
1770
1771 t.tx_buf = &msg[0];
1772 t.len = len;
1773
1774 spi_message_add_tail(&t, &m);
1775 spi_sync(spi, &m);
1776
1777 return len;
1778 }
1779 #endif
1780
1781
1782 static int wm8753_probe(struct platform_device *pdev)
1783 {
1784 struct snd_soc_device *socdev = platform_get_drvdata(pdev);
1785 struct wm8753_setup_data *setup;
1786 struct snd_soc_codec *codec;
1787 struct wm8753_priv *wm8753;
1788 int ret = 0;
1789
1790 pr_info("WM8753 Audio Codec %s", WM8753_VERSION);
1791
1792 setup = socdev->codec_data;
1793 codec = kzalloc(sizeof(struct snd_soc_codec), GFP_KERNEL);
1794 if (codec == NULL)
1795 return -ENOMEM;
1796
1797 wm8753 = kzalloc(sizeof(struct wm8753_priv), GFP_KERNEL);
1798 if (wm8753 == NULL) {
1799 kfree(codec);
1800 return -ENOMEM;
1801 }
1802
1803 codec->private_data = wm8753;
1804 socdev->codec = codec;
1805 mutex_init(&codec->mutex);
1806 INIT_LIST_HEAD(&codec->dapm_widgets);
1807 INIT_LIST_HEAD(&codec->dapm_paths);
1808 wm8753_socdev = socdev;
1809 INIT_DELAYED_WORK(&codec->delayed_work, wm8753_work);
1810
1811 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
1812 if (setup->i2c_address) {
1813 codec->hw_write = (hw_write_t)i2c_master_send;
1814 ret = wm8753_add_i2c_device(pdev, setup);
1815 }
1816 #endif
1817 #if defined(CONFIG_SPI_MASTER)
1818 if (setup->spi) {
1819 codec->hw_write = (hw_write_t)wm8753_spi_write;
1820 ret = spi_register_driver(&wm8753_spi_driver);
1821 if (ret != 0)
1822 printk(KERN_ERR "can't add spi driver");
1823 }
1824 #endif
1825
1826 if (ret != 0) {
1827 kfree(codec->private_data);
1828 kfree(codec);
1829 }
1830 return ret;
1831 }
1832
1833 /*
1834 * This function forces any delayed work to be queued and run.
1835 */
1836 static int run_delayed_work(struct delayed_work *dwork)
1837 {
1838 int ret;
1839
1840 /* cancel any work waiting to be queued. */
1841 ret = cancel_delayed_work(dwork);
1842
1843 /* if there was any work waiting then we run it now and
1844 * wait for it's completion */
1845 if (ret) {
1846 schedule_delayed_work(dwork, 0);
1847 flush_scheduled_work();
1848 }
1849 return ret;
1850 }
1851
1852 /* power down chip */
1853 static int wm8753_remove(struct platform_device *pdev)
1854 {
1855 struct snd_soc_device *socdev = platform_get_drvdata(pdev);
1856 struct snd_soc_codec *codec = socdev->codec;
1857
1858 if (codec->control_data)
1859 wm8753_set_bias_level(codec, SND_SOC_BIAS_OFF);
1860 run_delayed_work(&codec->delayed_work);
1861 snd_soc_free_pcms(socdev);
1862 snd_soc_dapm_free(socdev);
1863 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
1864 i2c_unregister_device(codec->control_data);
1865 i2c_del_driver(&wm8753_i2c_driver);
1866 #endif
1867 #if defined(CONFIG_SPI_MASTER)
1868 spi_unregister_driver(&wm8753_spi_driver);
1869 #endif
1870 kfree(codec->private_data);
1871 kfree(codec);
1872
1873 return 0;
1874 }
1875
1876 struct snd_soc_codec_device soc_codec_dev_wm8753 = {
1877 .probe = wm8753_probe,
1878 .remove = wm8753_remove,
1879 .suspend = wm8753_suspend,
1880 .resume = wm8753_resume,
1881 };
1882 EXPORT_SYMBOL_GPL(soc_codec_dev_wm8753);
1883
1884 static int __init wm8753_modinit(void)
1885 {
1886 return snd_soc_register_dais(wm8753_dai, ARRAY_SIZE(wm8753_dai));
1887 }
1888 module_init(wm8753_modinit);
1889
1890 static void __exit wm8753_exit(void)
1891 {
1892 snd_soc_unregister_dais(wm8753_dai, ARRAY_SIZE(wm8753_dai));
1893 }
1894 module_exit(wm8753_exit);
1895
1896 MODULE_DESCRIPTION("ASoC WM8753 driver");
1897 MODULE_AUTHOR("Liam Girdwood");
1898 MODULE_LICENSE("GPL");
Linux with added FPC-III support