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Merge branch 'for-2.6.37' into for-2.6.38
[deliverable/linux.git] / sound / soc / codecs / wm8753.c
1 /*
2 * wm8753.c -- WM8753 ALSA Soc Audio driver
3 *
4 * Copyright 2003 Wolfson Microelectronics PLC.
5 * Author: Liam Girdwood <lrg@slimlogic.co.uk>
6 *
7 * This program is free software; you can redistribute it and/or modify it
8 * under the terms of the GNU General Public License as published by the
9 * Free Software Foundation; either version 2 of the License, or (at your
10 * option) any later version.
11 *
12 * Notes:
13 * The WM8753 is a low power, high quality stereo codec with integrated PCM
14 * codec designed for portable digital telephony applications.
15 *
16 * Dual DAI:-
17 *
18 * This driver support 2 DAI PCM's. This makes the default PCM available for
19 * HiFi audio (e.g. MP3, ogg) playback/capture and the other PCM available for
20 * voice.
21 *
22 * Please note that the voice PCM can be connected directly to a Bluetooth
23 * codec or GSM modem and thus cannot be read or written to, although it is
24 * available to be configured with snd_hw_params(), etc and kcontrols in the
25 * normal alsa manner.
26 *
27 * Fast DAI switching:-
28 *
29 * The driver can now fast switch between the DAI configurations via a
30 * an alsa kcontrol. This allows the PCM to remain open.
31 *
32 */
33
34 #include <linux/module.h>
35 #include <linux/moduleparam.h>
36 #include <linux/kernel.h>
37 #include <linux/init.h>
38 #include <linux/delay.h>
39 #include <linux/pm.h>
40 #include <linux/i2c.h>
41 #include <linux/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/initval.h>
49 #include <sound/tlv.h>
50 #include <asm/div64.h>
51
52 #include "wm8753.h"
53
54 static int caps_charge = 2000;
55 module_param(caps_charge, int, 0);
56 MODULE_PARM_DESC(caps_charge, "WM8753 cap charge time (msecs)");
57
58 static void wm8753_set_dai_mode(struct snd_soc_codec *codec,
59 struct snd_soc_dai *dai, unsigned int hifi);
60
61 /*
62 * wm8753 register cache
63 * We can't read the WM8753 register space when we
64 * are using 2 wire for device control, so we cache them instead.
65 */
66 static const u16 wm8753_reg[] = {
67 0x0008, 0x0000, 0x000a, 0x000a,
68 0x0033, 0x0000, 0x0007, 0x00ff,
69 0x00ff, 0x000f, 0x000f, 0x007b,
70 0x0000, 0x0032, 0x0000, 0x00c3,
71 0x00c3, 0x00c0, 0x0000, 0x0000,
72 0x0000, 0x0000, 0x0000, 0x0000,
73 0x0000, 0x0000, 0x0000, 0x0000,
74 0x0000, 0x0000, 0x0000, 0x0055,
75 0x0005, 0x0050, 0x0055, 0x0050,
76 0x0055, 0x0050, 0x0055, 0x0079,
77 0x0079, 0x0079, 0x0079, 0x0079,
78 0x0000, 0x0000, 0x0000, 0x0000,
79 0x0097, 0x0097, 0x0000, 0x0004,
80 0x0000, 0x0083, 0x0024, 0x01ba,
81 0x0000, 0x0083, 0x0024, 0x01ba,
82 0x0000, 0x0000, 0x0000
83 };
84
85 /* codec private data */
86 struct wm8753_priv {
87 enum snd_soc_control_type control_type;
88 unsigned int sysclk;
89 unsigned int pcmclk;
90 u16 reg_cache[ARRAY_SIZE(wm8753_reg)];
91 int dai_func;
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 struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);
232
233 if (((mode & 0xc) >> 2) == ucontrol->value.integer.value[0])
234 return 0;
235
236 mode &= 0xfff3;
237 mode |= (ucontrol->value.integer.value[0] << 2);
238
239 wm8753->dai_func = 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 struct snd_soc_dapm_context *dapm = &codec->dapm;
673
674 snd_soc_dapm_new_controls(dapm, wm8753_dapm_widgets,
675 ARRAY_SIZE(wm8753_dapm_widgets));
676 snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map));
677
678 return 0;
679 }
680
681 /* PLL divisors */
682 struct _pll_div {
683 u32 div2:1;
684 u32 n:4;
685 u32 k:24;
686 };
687
688 /* The size in bits of the pll divide multiplied by 10
689 * to allow rounding later */
690 #define FIXED_PLL_SIZE ((1 << 22) * 10)
691
692 static void pll_factors(struct _pll_div *pll_div, unsigned int target,
693 unsigned int source)
694 {
695 u64 Kpart;
696 unsigned int K, Ndiv, Nmod;
697
698 Ndiv = target / source;
699 if (Ndiv < 6) {
700 source >>= 1;
701 pll_div->div2 = 1;
702 Ndiv = target / source;
703 } else
704 pll_div->div2 = 0;
705
706 if ((Ndiv < 6) || (Ndiv > 12))
707 printk(KERN_WARNING
708 "wm8753: unsupported N = %u\n", Ndiv);
709
710 pll_div->n = Ndiv;
711 Nmod = target % source;
712 Kpart = FIXED_PLL_SIZE * (long long)Nmod;
713
714 do_div(Kpart, source);
715
716 K = Kpart & 0xFFFFFFFF;
717
718 /* Check if we need to round */
719 if ((K % 10) >= 5)
720 K += 5;
721
722 /* Move down to proper range now rounding is done */
723 K /= 10;
724
725 pll_div->k = K;
726 }
727
728 static int wm8753_set_dai_pll(struct snd_soc_dai *codec_dai, int pll_id,
729 int source, unsigned int freq_in, unsigned int freq_out)
730 {
731 u16 reg, enable;
732 int offset;
733 struct snd_soc_codec *codec = codec_dai->codec;
734
735 if (pll_id < WM8753_PLL1 || pll_id > WM8753_PLL2)
736 return -ENODEV;
737
738 if (pll_id == WM8753_PLL1) {
739 offset = 0;
740 enable = 0x10;
741 reg = wm8753_read_reg_cache(codec, WM8753_CLOCK) & 0xffef;
742 } else {
743 offset = 4;
744 enable = 0x8;
745 reg = wm8753_read_reg_cache(codec, WM8753_CLOCK) & 0xfff7;
746 }
747
748 if (!freq_in || !freq_out) {
749 /* disable PLL */
750 wm8753_write(codec, WM8753_PLL1CTL1 + offset, 0x0026);
751 wm8753_write(codec, WM8753_CLOCK, reg);
752 return 0;
753 } else {
754 u16 value = 0;
755 struct _pll_div pll_div;
756
757 pll_factors(&pll_div, freq_out * 8, freq_in);
758
759 /* set up N and K PLL divisor ratios */
760 /* bits 8:5 = PLL_N, bits 3:0 = PLL_K[21:18] */
761 value = (pll_div.n << 5) + ((pll_div.k & 0x3c0000) >> 18);
762 wm8753_write(codec, WM8753_PLL1CTL2 + offset, value);
763
764 /* bits 8:0 = PLL_K[17:9] */
765 value = (pll_div.k & 0x03fe00) >> 9;
766 wm8753_write(codec, WM8753_PLL1CTL3 + offset, value);
767
768 /* bits 8:0 = PLL_K[8:0] */
769 value = pll_div.k & 0x0001ff;
770 wm8753_write(codec, WM8753_PLL1CTL4 + offset, value);
771
772 /* set PLL as input and enable */
773 wm8753_write(codec, WM8753_PLL1CTL1 + offset, 0x0027 |
774 (pll_div.div2 << 3));
775 wm8753_write(codec, WM8753_CLOCK, reg | enable);
776 }
777 return 0;
778 }
779
780 struct _coeff_div {
781 u32 mclk;
782 u32 rate;
783 u8 sr:5;
784 u8 usb:1;
785 };
786
787 /* codec hifi mclk (after PLL) clock divider coefficients */
788 static const struct _coeff_div coeff_div[] = {
789 /* 8k */
790 {12288000, 8000, 0x6, 0x0},
791 {11289600, 8000, 0x16, 0x0},
792 {18432000, 8000, 0x7, 0x0},
793 {16934400, 8000, 0x17, 0x0},
794 {12000000, 8000, 0x6, 0x1},
795
796 /* 11.025k */
797 {11289600, 11025, 0x18, 0x0},
798 {16934400, 11025, 0x19, 0x0},
799 {12000000, 11025, 0x19, 0x1},
800
801 /* 16k */
802 {12288000, 16000, 0xa, 0x0},
803 {18432000, 16000, 0xb, 0x0},
804 {12000000, 16000, 0xa, 0x1},
805
806 /* 22.05k */
807 {11289600, 22050, 0x1a, 0x0},
808 {16934400, 22050, 0x1b, 0x0},
809 {12000000, 22050, 0x1b, 0x1},
810
811 /* 32k */
812 {12288000, 32000, 0xc, 0x0},
813 {18432000, 32000, 0xd, 0x0},
814 {12000000, 32000, 0xa, 0x1},
815
816 /* 44.1k */
817 {11289600, 44100, 0x10, 0x0},
818 {16934400, 44100, 0x11, 0x0},
819 {12000000, 44100, 0x11, 0x1},
820
821 /* 48k */
822 {12288000, 48000, 0x0, 0x0},
823 {18432000, 48000, 0x1, 0x0},
824 {12000000, 48000, 0x0, 0x1},
825
826 /* 88.2k */
827 {11289600, 88200, 0x1e, 0x0},
828 {16934400, 88200, 0x1f, 0x0},
829 {12000000, 88200, 0x1f, 0x1},
830
831 /* 96k */
832 {12288000, 96000, 0xe, 0x0},
833 {18432000, 96000, 0xf, 0x0},
834 {12000000, 96000, 0xe, 0x1},
835 };
836
837 static int get_coeff(int mclk, int rate)
838 {
839 int i;
840
841 for (i = 0; i < ARRAY_SIZE(coeff_div); i++) {
842 if (coeff_div[i].rate == rate && coeff_div[i].mclk == mclk)
843 return i;
844 }
845 return -EINVAL;
846 }
847
848 /*
849 * Clock after PLL and dividers
850 */
851 static int wm8753_set_dai_sysclk(struct snd_soc_dai *codec_dai,
852 int clk_id, unsigned int freq, int dir)
853 {
854 struct snd_soc_codec *codec = codec_dai->codec;
855 struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);
856
857 switch (freq) {
858 case 11289600:
859 case 12000000:
860 case 12288000:
861 case 16934400:
862 case 18432000:
863 if (clk_id == WM8753_MCLK) {
864 wm8753->sysclk = freq;
865 return 0;
866 } else if (clk_id == WM8753_PCMCLK) {
867 wm8753->pcmclk = freq;
868 return 0;
869 }
870 break;
871 }
872 return -EINVAL;
873 }
874
875 /*
876 * Set's ADC and Voice DAC format.
877 */
878 static int wm8753_vdac_adc_set_dai_fmt(struct snd_soc_dai *codec_dai,
879 unsigned int fmt)
880 {
881 struct snd_soc_codec *codec = codec_dai->codec;
882 u16 voice = wm8753_read_reg_cache(codec, WM8753_PCM) & 0x01ec;
883
884 /* interface format */
885 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
886 case SND_SOC_DAIFMT_I2S:
887 voice |= 0x0002;
888 break;
889 case SND_SOC_DAIFMT_RIGHT_J:
890 break;
891 case SND_SOC_DAIFMT_LEFT_J:
892 voice |= 0x0001;
893 break;
894 case SND_SOC_DAIFMT_DSP_A:
895 voice |= 0x0003;
896 break;
897 case SND_SOC_DAIFMT_DSP_B:
898 voice |= 0x0013;
899 break;
900 default:
901 return -EINVAL;
902 }
903
904 wm8753_write(codec, WM8753_PCM, voice);
905 return 0;
906 }
907
908 static int wm8753_pcm_startup(struct snd_pcm_substream *substream,
909 struct snd_soc_dai *dai)
910 {
911 wm8753_set_dai_mode(dai->codec, dai, 0);
912 return 0;
913 }
914
915 /*
916 * Set PCM DAI bit size and sample rate.
917 */
918 static int wm8753_pcm_hw_params(struct snd_pcm_substream *substream,
919 struct snd_pcm_hw_params *params,
920 struct snd_soc_dai *dai)
921 {
922 struct snd_soc_pcm_runtime *rtd = substream->private_data;
923 struct snd_soc_codec *codec = rtd->codec;
924 struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);
925 u16 voice = wm8753_read_reg_cache(codec, WM8753_PCM) & 0x01f3;
926 u16 srate = wm8753_read_reg_cache(codec, WM8753_SRATE1) & 0x017f;
927
928 /* bit size */
929 switch (params_format(params)) {
930 case SNDRV_PCM_FORMAT_S16_LE:
931 break;
932 case SNDRV_PCM_FORMAT_S20_3LE:
933 voice |= 0x0004;
934 break;
935 case SNDRV_PCM_FORMAT_S24_LE:
936 voice |= 0x0008;
937 break;
938 case SNDRV_PCM_FORMAT_S32_LE:
939 voice |= 0x000c;
940 break;
941 }
942
943 /* sample rate */
944 if (params_rate(params) * 384 == wm8753->pcmclk)
945 srate |= 0x80;
946 wm8753_write(codec, WM8753_SRATE1, srate);
947
948 wm8753_write(codec, WM8753_PCM, voice);
949 return 0;
950 }
951
952 /*
953 * Set's PCM dai fmt and BCLK.
954 */
955 static int wm8753_pcm_set_dai_fmt(struct snd_soc_dai *codec_dai,
956 unsigned int fmt)
957 {
958 struct snd_soc_codec *codec = codec_dai->codec;
959 u16 voice, ioctl;
960
961 voice = wm8753_read_reg_cache(codec, WM8753_PCM) & 0x011f;
962 ioctl = wm8753_read_reg_cache(codec, WM8753_IOCTL) & 0x015d;
963
964 /* set master/slave audio interface */
965 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
966 case SND_SOC_DAIFMT_CBS_CFS:
967 break;
968 case SND_SOC_DAIFMT_CBM_CFM:
969 ioctl |= 0x2;
970 case SND_SOC_DAIFMT_CBM_CFS:
971 voice |= 0x0040;
972 break;
973 default:
974 return -EINVAL;
975 }
976
977 /* clock inversion */
978 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
979 case SND_SOC_DAIFMT_DSP_A:
980 case SND_SOC_DAIFMT_DSP_B:
981 /* frame inversion not valid for DSP modes */
982 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
983 case SND_SOC_DAIFMT_NB_NF:
984 break;
985 case SND_SOC_DAIFMT_IB_NF:
986 voice |= 0x0080;
987 break;
988 default:
989 return -EINVAL;
990 }
991 break;
992 case SND_SOC_DAIFMT_I2S:
993 case SND_SOC_DAIFMT_RIGHT_J:
994 case SND_SOC_DAIFMT_LEFT_J:
995 voice &= ~0x0010;
996 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
997 case SND_SOC_DAIFMT_NB_NF:
998 break;
999 case SND_SOC_DAIFMT_IB_IF:
1000 voice |= 0x0090;
1001 break;
1002 case SND_SOC_DAIFMT_IB_NF:
1003 voice |= 0x0080;
1004 break;
1005 case SND_SOC_DAIFMT_NB_IF:
1006 voice |= 0x0010;
1007 break;
1008 default:
1009 return -EINVAL;
1010 }
1011 break;
1012 default:
1013 return -EINVAL;
1014 }
1015
1016 wm8753_write(codec, WM8753_PCM, voice);
1017 wm8753_write(codec, WM8753_IOCTL, ioctl);
1018 return 0;
1019 }
1020
1021 static int wm8753_set_dai_clkdiv(struct snd_soc_dai *codec_dai,
1022 int div_id, int div)
1023 {
1024 struct snd_soc_codec *codec = codec_dai->codec;
1025 u16 reg;
1026
1027 switch (div_id) {
1028 case WM8753_PCMDIV:
1029 reg = wm8753_read_reg_cache(codec, WM8753_CLOCK) & 0x003f;
1030 wm8753_write(codec, WM8753_CLOCK, reg | div);
1031 break;
1032 case WM8753_BCLKDIV:
1033 reg = wm8753_read_reg_cache(codec, WM8753_SRATE2) & 0x01c7;
1034 wm8753_write(codec, WM8753_SRATE2, reg | div);
1035 break;
1036 case WM8753_VXCLKDIV:
1037 reg = wm8753_read_reg_cache(codec, WM8753_SRATE2) & 0x003f;
1038 wm8753_write(codec, WM8753_SRATE2, reg | div);
1039 break;
1040 default:
1041 return -EINVAL;
1042 }
1043 return 0;
1044 }
1045
1046 /*
1047 * Set's HiFi DAC format.
1048 */
1049 static int wm8753_hdac_set_dai_fmt(struct snd_soc_dai *codec_dai,
1050 unsigned int fmt)
1051 {
1052 struct snd_soc_codec *codec = codec_dai->codec;
1053 u16 hifi = wm8753_read_reg_cache(codec, WM8753_HIFI) & 0x01e0;
1054
1055 /* interface format */
1056 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
1057 case SND_SOC_DAIFMT_I2S:
1058 hifi |= 0x0002;
1059 break;
1060 case SND_SOC_DAIFMT_RIGHT_J:
1061 break;
1062 case SND_SOC_DAIFMT_LEFT_J:
1063 hifi |= 0x0001;
1064 break;
1065 case SND_SOC_DAIFMT_DSP_A:
1066 hifi |= 0x0003;
1067 break;
1068 case SND_SOC_DAIFMT_DSP_B:
1069 hifi |= 0x0013;
1070 break;
1071 default:
1072 return -EINVAL;
1073 }
1074
1075 wm8753_write(codec, WM8753_HIFI, hifi);
1076 return 0;
1077 }
1078
1079 /*
1080 * Set's I2S DAI format.
1081 */
1082 static int wm8753_i2s_set_dai_fmt(struct snd_soc_dai *codec_dai,
1083 unsigned int fmt)
1084 {
1085 struct snd_soc_codec *codec = codec_dai->codec;
1086 u16 ioctl, hifi;
1087
1088 hifi = wm8753_read_reg_cache(codec, WM8753_HIFI) & 0x011f;
1089 ioctl = wm8753_read_reg_cache(codec, WM8753_IOCTL) & 0x00ae;
1090
1091 /* set master/slave audio interface */
1092 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
1093 case SND_SOC_DAIFMT_CBS_CFS:
1094 break;
1095 case SND_SOC_DAIFMT_CBM_CFM:
1096 ioctl |= 0x1;
1097 case SND_SOC_DAIFMT_CBM_CFS:
1098 hifi |= 0x0040;
1099 break;
1100 default:
1101 return -EINVAL;
1102 }
1103
1104 /* clock inversion */
1105 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
1106 case SND_SOC_DAIFMT_DSP_A:
1107 case SND_SOC_DAIFMT_DSP_B:
1108 /* frame inversion not valid for DSP modes */
1109 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
1110 case SND_SOC_DAIFMT_NB_NF:
1111 break;
1112 case SND_SOC_DAIFMT_IB_NF:
1113 hifi |= 0x0080;
1114 break;
1115 default:
1116 return -EINVAL;
1117 }
1118 break;
1119 case SND_SOC_DAIFMT_I2S:
1120 case SND_SOC_DAIFMT_RIGHT_J:
1121 case SND_SOC_DAIFMT_LEFT_J:
1122 hifi &= ~0x0010;
1123 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
1124 case SND_SOC_DAIFMT_NB_NF:
1125 break;
1126 case SND_SOC_DAIFMT_IB_IF:
1127 hifi |= 0x0090;
1128 break;
1129 case SND_SOC_DAIFMT_IB_NF:
1130 hifi |= 0x0080;
1131 break;
1132 case SND_SOC_DAIFMT_NB_IF:
1133 hifi |= 0x0010;
1134 break;
1135 default:
1136 return -EINVAL;
1137 }
1138 break;
1139 default:
1140 return -EINVAL;
1141 }
1142
1143 wm8753_write(codec, WM8753_HIFI, hifi);
1144 wm8753_write(codec, WM8753_IOCTL, ioctl);
1145 return 0;
1146 }
1147
1148 static int wm8753_i2s_startup(struct snd_pcm_substream *substream,
1149 struct snd_soc_dai *dai)
1150 {
1151 wm8753_set_dai_mode(dai->codec, dai, 1);
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_codec *codec = rtd->codec;
1164 struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);
1165 u16 srate = wm8753_read_reg_cache(codec, WM8753_SRATE1) & 0x01c0;
1166 u16 hifi = wm8753_read_reg_cache(codec, WM8753_HIFI) & 0x01f3;
1167 int coeff;
1168
1169 /* is digital filter coefficient valid ? */
1170 coeff = get_coeff(wm8753->sysclk, params_rate(params));
1171 if (coeff < 0) {
1172 printk(KERN_ERR "wm8753 invalid MCLK or rate\n");
1173 return coeff;
1174 }
1175 wm8753_write(codec, WM8753_SRATE1, srate | (coeff_div[coeff].sr << 1) |
1176 coeff_div[coeff].usb);
1177
1178 /* bit size */
1179 switch (params_format(params)) {
1180 case SNDRV_PCM_FORMAT_S16_LE:
1181 break;
1182 case SNDRV_PCM_FORMAT_S20_3LE:
1183 hifi |= 0x0004;
1184 break;
1185 case SNDRV_PCM_FORMAT_S24_LE:
1186 hifi |= 0x0008;
1187 break;
1188 case SNDRV_PCM_FORMAT_S32_LE:
1189 hifi |= 0x000c;
1190 break;
1191 }
1192
1193 wm8753_write(codec, WM8753_HIFI, hifi);
1194 return 0;
1195 }
1196
1197 static int wm8753_mode1v_set_dai_fmt(struct snd_soc_dai *codec_dai,
1198 unsigned int fmt)
1199 {
1200 struct snd_soc_codec *codec = codec_dai->codec;
1201 u16 clock;
1202
1203 /* set clk source as pcmclk */
1204 clock = wm8753_read_reg_cache(codec, WM8753_CLOCK) & 0xfffb;
1205 wm8753_write(codec, WM8753_CLOCK, clock);
1206
1207 if (wm8753_vdac_adc_set_dai_fmt(codec_dai, fmt) < 0)
1208 return -EINVAL;
1209 return wm8753_pcm_set_dai_fmt(codec_dai, fmt);
1210 }
1211
1212 static int wm8753_mode1h_set_dai_fmt(struct snd_soc_dai *codec_dai,
1213 unsigned int fmt)
1214 {
1215 if (wm8753_hdac_set_dai_fmt(codec_dai, fmt) < 0)
1216 return -EINVAL;
1217 return wm8753_i2s_set_dai_fmt(codec_dai, fmt);
1218 }
1219
1220 static int wm8753_mode2_set_dai_fmt(struct snd_soc_dai *codec_dai,
1221 unsigned int fmt)
1222 {
1223 struct snd_soc_codec *codec = codec_dai->codec;
1224 u16 clock;
1225
1226 /* set clk source as pcmclk */
1227 clock = wm8753_read_reg_cache(codec, WM8753_CLOCK) & 0xfffb;
1228 wm8753_write(codec, WM8753_CLOCK, clock);
1229
1230 if (wm8753_vdac_adc_set_dai_fmt(codec_dai, fmt) < 0)
1231 return -EINVAL;
1232 return wm8753_i2s_set_dai_fmt(codec_dai, fmt);
1233 }
1234
1235 static int wm8753_mode3_4_set_dai_fmt(struct snd_soc_dai *codec_dai,
1236 unsigned int fmt)
1237 {
1238 struct snd_soc_codec *codec = codec_dai->codec;
1239 u16 clock;
1240
1241 /* set clk source as mclk */
1242 clock = wm8753_read_reg_cache(codec, WM8753_CLOCK) & 0xfffb;
1243 wm8753_write(codec, WM8753_CLOCK, clock | 0x4);
1244
1245 if (wm8753_hdac_set_dai_fmt(codec_dai, fmt) < 0)
1246 return -EINVAL;
1247 if (wm8753_vdac_adc_set_dai_fmt(codec_dai, fmt) < 0)
1248 return -EINVAL;
1249 return wm8753_i2s_set_dai_fmt(codec_dai, fmt);
1250 }
1251
1252 static int wm8753_mute(struct snd_soc_dai *dai, int mute)
1253 {
1254 struct snd_soc_codec *codec = dai->codec;
1255 u16 mute_reg = wm8753_read_reg_cache(codec, WM8753_DAC) & 0xfff7;
1256 struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);
1257
1258 /* the digital mute covers the HiFi and Voice DAC's on the WM8753.
1259 * make sure we check if they are not both active when we mute */
1260 if (mute && wm8753->dai_func == 1) {
1261 if (!codec->active)
1262 wm8753_write(codec, WM8753_DAC, mute_reg | 0x8);
1263 } else {
1264 if (mute)
1265 wm8753_write(codec, WM8753_DAC, mute_reg | 0x8);
1266 else
1267 wm8753_write(codec, WM8753_DAC, mute_reg);
1268 }
1269
1270 return 0;
1271 }
1272
1273 static int wm8753_set_bias_level(struct snd_soc_codec *codec,
1274 enum snd_soc_bias_level level)
1275 {
1276 u16 pwr_reg = wm8753_read_reg_cache(codec, WM8753_PWR1) & 0xfe3e;
1277
1278 switch (level) {
1279 case SND_SOC_BIAS_ON:
1280 /* set vmid to 50k and unmute dac */
1281 wm8753_write(codec, WM8753_PWR1, pwr_reg | 0x00c0);
1282 break;
1283 case SND_SOC_BIAS_PREPARE:
1284 /* set vmid to 5k for quick power up */
1285 wm8753_write(codec, WM8753_PWR1, pwr_reg | 0x01c1);
1286 break;
1287 case SND_SOC_BIAS_STANDBY:
1288 /* mute dac and set vmid to 500k, enable VREF */
1289 wm8753_write(codec, WM8753_PWR1, pwr_reg | 0x0141);
1290 break;
1291 case SND_SOC_BIAS_OFF:
1292 wm8753_write(codec, WM8753_PWR1, 0x0001);
1293 break;
1294 }
1295 codec->dapm.bias_level = level;
1296 return 0;
1297 }
1298
1299 #define WM8753_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\
1300 SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 |\
1301 SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 |\
1302 SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000)
1303
1304 #define WM8753_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
1305 SNDRV_PCM_FMTBIT_S24_LE)
1306
1307 /*
1308 * The WM8753 supports upto 4 different and mutually exclusive DAI
1309 * configurations. This gives 2 PCM's available for use, hifi and voice.
1310 * NOTE: The Voice PCM cannot play or capture audio to the CPU as it's DAI
1311 * is connected between the wm8753 and a BT codec or GSM modem.
1312 *
1313 * 1. Voice over PCM DAI - HIFI DAC over HIFI DAI
1314 * 2. Voice over HIFI DAI - HIFI disabled
1315 * 3. Voice disabled - HIFI over HIFI
1316 * 4. Voice disabled - HIFI over HIFI, uses voice DAI LRC for capture
1317 */
1318 static struct snd_soc_dai_ops wm8753_dai_ops_hifi_mode1 = {
1319 .startup = wm8753_i2s_startup,
1320 .hw_params = wm8753_i2s_hw_params,
1321 .digital_mute = wm8753_mute,
1322 .set_fmt = wm8753_mode1h_set_dai_fmt,
1323 .set_clkdiv = wm8753_set_dai_clkdiv,
1324 .set_pll = wm8753_set_dai_pll,
1325 .set_sysclk = wm8753_set_dai_sysclk,
1326 };
1327
1328 static struct snd_soc_dai_ops wm8753_dai_ops_voice_mode1 = {
1329 .startup = wm8753_pcm_startup,
1330 .hw_params = wm8753_pcm_hw_params,
1331 .digital_mute = wm8753_mute,
1332 .set_fmt = wm8753_mode1v_set_dai_fmt,
1333 .set_clkdiv = wm8753_set_dai_clkdiv,
1334 .set_pll = wm8753_set_dai_pll,
1335 .set_sysclk = wm8753_set_dai_sysclk,
1336 };
1337
1338 static struct snd_soc_dai_ops wm8753_dai_ops_voice_mode2 = {
1339 .startup = wm8753_pcm_startup,
1340 .hw_params = wm8753_pcm_hw_params,
1341 .digital_mute = wm8753_mute,
1342 .set_fmt = wm8753_mode2_set_dai_fmt,
1343 .set_clkdiv = wm8753_set_dai_clkdiv,
1344 .set_pll = wm8753_set_dai_pll,
1345 .set_sysclk = wm8753_set_dai_sysclk,
1346 };
1347
1348 static struct snd_soc_dai_ops wm8753_dai_ops_hifi_mode3 = {
1349 .startup = wm8753_i2s_startup,
1350 .hw_params = wm8753_i2s_hw_params,
1351 .digital_mute = wm8753_mute,
1352 .set_fmt = wm8753_mode3_4_set_dai_fmt,
1353 .set_clkdiv = wm8753_set_dai_clkdiv,
1354 .set_pll = wm8753_set_dai_pll,
1355 .set_sysclk = wm8753_set_dai_sysclk,
1356 };
1357
1358 static struct snd_soc_dai_ops wm8753_dai_ops_hifi_mode4 = {
1359 .startup = wm8753_i2s_startup,
1360 .hw_params = wm8753_i2s_hw_params,
1361 .digital_mute = wm8753_mute,
1362 .set_fmt = wm8753_mode3_4_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 static struct snd_soc_dai_driver wm8753_all_dai[] = {
1369 /* DAI HiFi mode 1 */
1370 { .name = "wm8753-hifi",
1371 .playback = {
1372 .stream_name = "HiFi Playback",
1373 .channels_min = 1,
1374 .channels_max = 2,
1375 .rates = WM8753_RATES,
1376 .formats = WM8753_FORMATS},
1377 .capture = { /* dummy for fast DAI switching */
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_hifi_mode1,
1384 },
1385 /* DAI Voice mode 1 */
1386 { .name = "wm8753-voice",
1387 .playback = {
1388 .stream_name = "Voice Playback",
1389 .channels_min = 1,
1390 .channels_max = 1,
1391 .rates = WM8753_RATES,
1392 .formats = WM8753_FORMATS,},
1393 .capture = {
1394 .stream_name = "Capture",
1395 .channels_min = 1,
1396 .channels_max = 2,
1397 .rates = WM8753_RATES,
1398 .formats = WM8753_FORMATS,},
1399 .ops = &wm8753_dai_ops_voice_mode1,
1400 },
1401 /* DAI HiFi mode 2 - dummy */
1402 { .name = "wm8753-hifi",
1403 },
1404 /* DAI Voice mode 2 */
1405 { .name = "wm8753-voice",
1406 .playback = {
1407 .stream_name = "Voice Playback",
1408 .channels_min = 1,
1409 .channels_max = 1,
1410 .rates = WM8753_RATES,
1411 .formats = WM8753_FORMATS,},
1412 .capture = {
1413 .stream_name = "Capture",
1414 .channels_min = 1,
1415 .channels_max = 2,
1416 .rates = WM8753_RATES,
1417 .formats = WM8753_FORMATS,},
1418 .ops = &wm8753_dai_ops_voice_mode2,
1419 },
1420 /* DAI HiFi mode 3 */
1421 { .name = "wm8753-hifi",
1422 .playback = {
1423 .stream_name = "HiFi Playback",
1424 .channels_min = 1,
1425 .channels_max = 2,
1426 .rates = WM8753_RATES,
1427 .formats = WM8753_FORMATS,},
1428 .capture = {
1429 .stream_name = "Capture",
1430 .channels_min = 1,
1431 .channels_max = 2,
1432 .rates = WM8753_RATES,
1433 .formats = WM8753_FORMATS,},
1434 .ops = &wm8753_dai_ops_hifi_mode3,
1435 },
1436 /* DAI Voice mode 3 - dummy */
1437 { .name = "wm8753-voice",
1438 },
1439 /* DAI HiFi mode 4 */
1440 { .name = "wm8753-hifi",
1441 .playback = {
1442 .stream_name = "HiFi Playback",
1443 .channels_min = 1,
1444 .channels_max = 2,
1445 .rates = WM8753_RATES,
1446 .formats = WM8753_FORMATS,},
1447 .capture = {
1448 .stream_name = "Capture",
1449 .channels_min = 1,
1450 .channels_max = 2,
1451 .rates = WM8753_RATES,
1452 .formats = WM8753_FORMATS,},
1453 .ops = &wm8753_dai_ops_hifi_mode4,
1454 },
1455 /* DAI Voice mode 4 - dummy */
1456 { .name = "wm8753-voice",
1457 },
1458 };
1459
1460 static struct snd_soc_dai_driver wm8753_dai[] = {
1461 {
1462 .name = "wm8753-aif0",
1463 },
1464 {
1465 .name = "wm8753-aif1",
1466 },
1467 };
1468
1469 static void wm8753_set_dai_mode(struct snd_soc_codec *codec,
1470 struct snd_soc_dai *dai, unsigned int hifi)
1471 {
1472 struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);
1473
1474 if (wm8753->dai_func < 4) {
1475 if (hifi)
1476 dai->driver = &wm8753_all_dai[wm8753->dai_func << 1];
1477 else
1478 dai->driver = &wm8753_all_dai[(wm8753->dai_func << 1) + 1];
1479 }
1480 wm8753_write(codec, WM8753_IOCTL, wm8753->dai_func);
1481 }
1482
1483 static void wm8753_work(struct work_struct *work)
1484 {
1485 struct snd_soc_dapm_context *dapm =
1486 container_of(work, struct snd_soc_dapm_context,
1487 delayed_work.work);
1488 struct snd_soc_codec *codec = dapm->codec;
1489 wm8753_set_bias_level(codec, dapm->bias_level);
1490 }
1491
1492 static int wm8753_suspend(struct snd_soc_codec *codec, pm_message_t state)
1493 {
1494 wm8753_set_bias_level(codec, SND_SOC_BIAS_OFF);
1495 return 0;
1496 }
1497
1498 static int wm8753_resume(struct snd_soc_codec *codec)
1499 {
1500 int i;
1501 u8 data[2];
1502 u16 *cache = codec->reg_cache;
1503
1504 /* Sync reg_cache with the hardware */
1505 for (i = 0; i < ARRAY_SIZE(wm8753_reg); i++) {
1506 if (i + 1 == WM8753_RESET)
1507 continue;
1508
1509 /* No point in writing hardware default values back */
1510 if (cache[i] == wm8753_reg[i])
1511 continue;
1512
1513 data[0] = ((i + 1) << 1) | ((cache[i] >> 8) & 0x0001);
1514 data[1] = cache[i] & 0x00ff;
1515 codec->hw_write(codec->control_data, data, 2);
1516 }
1517
1518 wm8753_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
1519
1520 /* charge wm8753 caps */
1521 if (codec->dapm.suspend_bias_level == SND_SOC_BIAS_ON) {
1522 wm8753_set_bias_level(codec, SND_SOC_BIAS_PREPARE);
1523 codec->dapm.bias_level = SND_SOC_BIAS_ON;
1524 schedule_delayed_work(&codec->dapm.delayed_work,
1525 msecs_to_jiffies(caps_charge));
1526 }
1527
1528 return 0;
1529 }
1530
1531 /*
1532 * This function forces any delayed work to be queued and run.
1533 */
1534 static int run_delayed_work(struct delayed_work *dwork)
1535 {
1536 int ret;
1537
1538 /* cancel any work waiting to be queued. */
1539 ret = cancel_delayed_work(dwork);
1540
1541 /* if there was any work waiting then we run it now and
1542 * wait for it's completion */
1543 if (ret) {
1544 schedule_delayed_work(dwork, 0);
1545 flush_scheduled_work();
1546 }
1547 return ret;
1548 }
1549
1550 static int wm8753_probe(struct snd_soc_codec *codec)
1551 {
1552 struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);
1553 int ret = 0, reg;
1554
1555 INIT_DELAYED_WORK(&codec->dapm.delayed_work, wm8753_work);
1556
1557 ret = snd_soc_codec_set_cache_io(codec, 7, 9, wm8753->control_type);
1558 if (ret < 0) {
1559 dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret);
1560 return ret;
1561 }
1562
1563 ret = wm8753_reset(codec);
1564 if (ret < 0) {
1565 dev_err(codec->dev, "Failed to issue reset: %d\n", ret);
1566 return ret;
1567 }
1568
1569 wm8753_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
1570 wm8753->dai_func = 0;
1571
1572 /* charge output caps */
1573 wm8753_set_bias_level(codec, SND_SOC_BIAS_PREPARE);
1574 schedule_delayed_work(&codec->dapm.delayed_work,
1575 msecs_to_jiffies(caps_charge));
1576
1577 /* set the update bits */
1578 reg = wm8753_read_reg_cache(codec, WM8753_LDAC);
1579 wm8753_write(codec, WM8753_LDAC, reg | 0x0100);
1580 reg = wm8753_read_reg_cache(codec, WM8753_RDAC);
1581 wm8753_write(codec, WM8753_RDAC, reg | 0x0100);
1582 reg = wm8753_read_reg_cache(codec, WM8753_LADC);
1583 wm8753_write(codec, WM8753_LADC, reg | 0x0100);
1584 reg = wm8753_read_reg_cache(codec, WM8753_RADC);
1585 wm8753_write(codec, WM8753_RADC, reg | 0x0100);
1586 reg = wm8753_read_reg_cache(codec, WM8753_LOUT1V);
1587 wm8753_write(codec, WM8753_LOUT1V, reg | 0x0100);
1588 reg = wm8753_read_reg_cache(codec, WM8753_ROUT1V);
1589 wm8753_write(codec, WM8753_ROUT1V, reg | 0x0100);
1590 reg = wm8753_read_reg_cache(codec, WM8753_LOUT2V);
1591 wm8753_write(codec, WM8753_LOUT2V, reg | 0x0100);
1592 reg = wm8753_read_reg_cache(codec, WM8753_ROUT2V);
1593 wm8753_write(codec, WM8753_ROUT2V, reg | 0x0100);
1594 reg = wm8753_read_reg_cache(codec, WM8753_LINVOL);
1595 wm8753_write(codec, WM8753_LINVOL, reg | 0x0100);
1596 reg = wm8753_read_reg_cache(codec, WM8753_RINVOL);
1597 wm8753_write(codec, WM8753_RINVOL, reg | 0x0100);
1598
1599 snd_soc_add_controls(codec, wm8753_snd_controls,
1600 ARRAY_SIZE(wm8753_snd_controls));
1601 wm8753_add_widgets(codec);
1602
1603 return 0;
1604 }
1605
1606 /* power down chip */
1607 static int wm8753_remove(struct snd_soc_codec *codec)
1608 {
1609 run_delayed_work(&codec->dapm.delayed_work);
1610 wm8753_set_bias_level(codec, SND_SOC_BIAS_OFF);
1611
1612 return 0;
1613 }
1614
1615 static struct snd_soc_codec_driver soc_codec_dev_wm8753 = {
1616 .probe = wm8753_probe,
1617 .remove = wm8753_remove,
1618 .suspend = wm8753_suspend,
1619 .resume = wm8753_resume,
1620 .set_bias_level = wm8753_set_bias_level,
1621 .reg_cache_size = ARRAY_SIZE(wm8753_reg),
1622 .reg_word_size = sizeof(u16),
1623 .reg_cache_default = wm8753_reg,
1624 };
1625
1626 #if defined(CONFIG_SPI_MASTER)
1627 static int __devinit wm8753_spi_probe(struct spi_device *spi)
1628 {
1629 struct wm8753_priv *wm8753;
1630 int ret;
1631
1632 wm8753 = kzalloc(sizeof(struct wm8753_priv), GFP_KERNEL);
1633 if (wm8753 == NULL)
1634 return -ENOMEM;
1635
1636 wm8753->control_type = SND_SOC_SPI;
1637 spi_set_drvdata(spi, wm8753);
1638
1639 ret = snd_soc_register_codec(&spi->dev,
1640 &soc_codec_dev_wm8753, wm8753_dai, ARRAY_SIZE(wm8753_dai));
1641 if (ret < 0)
1642 kfree(wm8753);
1643 return ret;
1644 }
1645
1646 static int __devexit wm8753_spi_remove(struct spi_device *spi)
1647 {
1648 snd_soc_unregister_codec(&spi->dev);
1649 kfree(spi_get_drvdata(spi));
1650 return 0;
1651 }
1652
1653 static struct spi_driver wm8753_spi_driver = {
1654 .driver = {
1655 .name = "wm8753-codec",
1656 .owner = THIS_MODULE,
1657 },
1658 .probe = wm8753_spi_probe,
1659 .remove = __devexit_p(wm8753_spi_remove),
1660 };
1661 #endif /* CONFIG_SPI_MASTER */
1662
1663 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
1664 static __devinit int wm8753_i2c_probe(struct i2c_client *i2c,
1665 const struct i2c_device_id *id)
1666 {
1667 struct wm8753_priv *wm8753;
1668 int ret;
1669
1670 wm8753 = kzalloc(sizeof(struct wm8753_priv), GFP_KERNEL);
1671 if (wm8753 == NULL)
1672 return -ENOMEM;
1673
1674 i2c_set_clientdata(i2c, wm8753);
1675 wm8753->control_type = SND_SOC_I2C;
1676
1677 ret = snd_soc_register_codec(&i2c->dev,
1678 &soc_codec_dev_wm8753, wm8753_dai, ARRAY_SIZE(wm8753_dai));
1679 if (ret < 0)
1680 kfree(wm8753);
1681 return ret;
1682 }
1683
1684 static __devexit int wm8753_i2c_remove(struct i2c_client *client)
1685 {
1686 snd_soc_unregister_codec(&client->dev);
1687 kfree(i2c_get_clientdata(client));
1688 return 0;
1689 }
1690
1691 static const struct i2c_device_id wm8753_i2c_id[] = {
1692 { "wm8753", 0 },
1693 { }
1694 };
1695 MODULE_DEVICE_TABLE(i2c, wm8753_i2c_id);
1696
1697 static struct i2c_driver wm8753_i2c_driver = {
1698 .driver = {
1699 .name = "wm8753-codec",
1700 .owner = THIS_MODULE,
1701 },
1702 .probe = wm8753_i2c_probe,
1703 .remove = __devexit_p(wm8753_i2c_remove),
1704 .id_table = wm8753_i2c_id,
1705 };
1706 #endif
1707
1708 static int __init wm8753_modinit(void)
1709 {
1710 int ret = 0;
1711 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
1712 ret = i2c_add_driver(&wm8753_i2c_driver);
1713 if (ret != 0) {
1714 printk(KERN_ERR "Failed to register wm8753 I2C driver: %d\n",
1715 ret);
1716 }
1717 #endif
1718 #if defined(CONFIG_SPI_MASTER)
1719 ret = spi_register_driver(&wm8753_spi_driver);
1720 if (ret != 0) {
1721 printk(KERN_ERR "Failed to register wm8753 SPI driver: %d\n",
1722 ret);
1723 }
1724 #endif
1725 return ret;
1726 }
1727 module_init(wm8753_modinit);
1728
1729 static void __exit wm8753_exit(void)
1730 {
1731 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
1732 i2c_del_driver(&wm8753_i2c_driver);
1733 #endif
1734 #if defined(CONFIG_SPI_MASTER)
1735 spi_unregister_driver(&wm8753_spi_driver);
1736 #endif
1737 }
1738 module_exit(wm8753_exit);
1739
1740 MODULE_DESCRIPTION("ASoC WM8753 driver");
1741 MODULE_AUTHOR("Liam Girdwood");
1742 MODULE_LICENSE("GPL");
Linux kernel - Deliverables
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