1 /*
2 * wm8753.c -- WM8753 ALSA Soc Audio driver
3 *
4 * Copyright 2003 Wolfson Microelectronics PLC.
5 * Author: Liam Girdwood <lrg@slimlogic.co.uk>
6 *
7 * This program is free software; you can redistribute it and/or modify it
8 * under the terms of the GNU General Public License as published by the
9 * Free Software Foundation; either version 2 of the License, or (at your
10 * option) any later version.
11 *
12 * Notes:
13 * The WM8753 is a low power, high quality stereo codec with integrated PCM
14 * codec designed for portable digital telephony applications.
15 *
16 * Dual DAI:-
17 *
18 * This driver support 2 DAI PCM's. This makes the default PCM available for
19 * HiFi audio (e.g. MP3, ogg) playback/capture and the other PCM available for
20 * voice.
21 *
22 * Please note that the voice PCM can be connected directly to a Bluetooth
23 * codec or GSM modem and thus cannot be read or written to, although it is
24 * available to be configured with snd_hw_params(), etc and kcontrols in the
25 * normal alsa manner.
26 *
27 * Fast DAI switching:-
28 *
29 * The driver can now fast switch between the DAI configurations via a
30 * an alsa kcontrol. This allows the PCM to remain open.
31 *
32 */
33
34 #include <linux/module.h>
35 #include <linux/moduleparam.h>
36 #include <linux/kernel.h>
37 #include <linux/init.h>
38 #include <linux/delay.h>
39 #include <linux/pm.h>
40 #include <linux/i2c.h>
41 #include <linux/of_device.h>
42 #include <linux/regmap.h>
43 #include <linux/spi/spi.h>
44 #include <linux/slab.h>
45 #include <sound/core.h>
46 #include <sound/pcm.h>
47 #include <sound/pcm_params.h>
48 #include <sound/soc.h>
49 #include <sound/initval.h>
50 #include <sound/tlv.h>
51 #include <asm/div64.h>
52
53 #include "wm8753.h"
54
55 static int caps_charge = 2000;
56 module_param(caps_charge, int, 0);
57 MODULE_PARM_DESC(caps_charge, "WM8753 cap charge time (msecs)");
58
59 static int wm8753_hifi_write_dai_fmt(struct snd_soc_codec *codec,
60 unsigned int fmt);
61 static int wm8753_voice_write_dai_fmt(struct snd_soc_codec *codec,
62 unsigned int fmt);
63
64 /*
65 * wm8753 register cache
66 * We can't read the WM8753 register space when we
67 * are using 2 wire for device control, so we cache them instead.
68 */
69 static const struct reg_default wm8753_reg_defaults[] = {
70 { 0x00, 0x0000 },
71 { 0x01, 0x0008 },
72 { 0x02, 0x0000 },
73 { 0x03, 0x000a },
74 { 0x04, 0x000a },
75 { 0x05, 0x0033 },
76 { 0x06, 0x0000 },
77 { 0x07, 0x0007 },
78 { 0x08, 0x00ff },
79 { 0x09, 0x00ff },
80 { 0x0a, 0x000f },
81 { 0x0b, 0x000f },
82 { 0x0c, 0x007b },
83 { 0x0d, 0x0000 },
84 { 0x0e, 0x0032 },
85 { 0x0f, 0x0000 },
86 { 0x10, 0x00c3 },
87 { 0x11, 0x00c3 },
88 { 0x12, 0x00c0 },
89 { 0x13, 0x0000 },
90 { 0x14, 0x0000 },
91 { 0x15, 0x0000 },
92 { 0x16, 0x0000 },
93 { 0x17, 0x0000 },
94 { 0x18, 0x0000 },
95 { 0x19, 0x0000 },
96 { 0x1a, 0x0000 },
97 { 0x1b, 0x0000 },
98 { 0x1c, 0x0000 },
99 { 0x1d, 0x0000 },
100 { 0x1e, 0x0000 },
101 { 0x1f, 0x0000 },
102 { 0x20, 0x0055 },
103 { 0x21, 0x0005 },
104 { 0x22, 0x0050 },
105 { 0x23, 0x0055 },
106 { 0x24, 0x0050 },
107 { 0x25, 0x0055 },
108 { 0x26, 0x0050 },
109 { 0x27, 0x0055 },
110 { 0x28, 0x0079 },
111 { 0x29, 0x0079 },
112 { 0x2a, 0x0079 },
113 { 0x2b, 0x0079 },
114 { 0x2c, 0x0079 },
115 { 0x2d, 0x0000 },
116 { 0x2e, 0x0000 },
117 { 0x2f, 0x0000 },
118 { 0x30, 0x0000 },
119 { 0x31, 0x0097 },
120 { 0x32, 0x0097 },
121 { 0x33, 0x0000 },
122 { 0x34, 0x0004 },
123 { 0x35, 0x0000 },
124 { 0x36, 0x0083 },
125 { 0x37, 0x0024 },
126 { 0x38, 0x01ba },
127 { 0x39, 0x0000 },
128 { 0x3a, 0x0083 },
129 { 0x3b, 0x0024 },
130 { 0x3c, 0x01ba },
131 { 0x3d, 0x0000 },
132 { 0x3e, 0x0000 },
133 { 0x3f, 0x0000 },
134 };
135
wm8753_volatile(struct device * dev,unsigned int reg)136 static bool wm8753_volatile(struct device *dev, unsigned int reg)
137 {
138 return reg == WM8753_RESET;
139 }
140
wm8753_writeable(struct device * dev,unsigned int reg)141 static bool wm8753_writeable(struct device *dev, unsigned int reg)
142 {
143 return reg <= WM8753_ADCTL2;
144 }
145
146 /* codec private data */
147 struct wm8753_priv {
148 struct regmap *regmap;
149 unsigned int sysclk;
150 unsigned int pcmclk;
151
152 unsigned int voice_fmt;
153 unsigned int hifi_fmt;
154
155 int dai_func;
156 };
157
158 #define wm8753_reset(c) snd_soc_write(c, WM8753_RESET, 0)
159
160 /*
161 * WM8753 Controls
162 */
163 static const char *wm8753_base[] = {"Linear Control", "Adaptive Boost"};
164 static const char *wm8753_base_filter[] =
165 {"130Hz @ 48kHz", "200Hz @ 48kHz", "100Hz @ 16kHz", "400Hz @ 48kHz",
166 "100Hz @ 8kHz", "200Hz @ 8kHz"};
167 static const char *wm8753_treble[] = {"8kHz", "4kHz"};
168 static const char *wm8753_alc_func[] = {"Off", "Right", "Left", "Stereo"};
169 static const char *wm8753_ng_type[] = {"Constant PGA Gain", "Mute ADC Output"};
170 static const char *wm8753_3d_func[] = {"Capture", "Playback"};
171 static const char *wm8753_3d_uc[] = {"2.2kHz", "1.5kHz"};
172 static const char *wm8753_3d_lc[] = {"200Hz", "500Hz"};
173 static const char *wm8753_deemp[] = {"None", "32kHz", "44.1kHz", "48kHz"};
174 static const char *wm8753_mono_mix[] = {"Stereo", "Left", "Right", "Mono"};
175 static const char *wm8753_dac_phase[] = {"Non Inverted", "Inverted"};
176 static const char *wm8753_line_mix[] = {"Line 1 + 2", "Line 1 - 2",
177 "Line 1", "Line 2"};
178 static const char *wm8753_mono_mux[] = {"Line Mix", "Rx Mix"};
179 static const char *wm8753_right_mux[] = {"Line 2", "Rx Mix"};
180 static const char *wm8753_left_mux[] = {"Line 1", "Rx Mix"};
181 static const char *wm8753_rxmsel[] = {"RXP - RXN", "RXP + RXN", "RXP", "RXN"};
182 static const char *wm8753_sidetone_mux[] = {"Left PGA", "Mic 1", "Mic 2",
183 "Right PGA"};
184 static const char *wm8753_mono2_src[] = {"Inverted Mono 1", "Left", "Right",
185 "Left + Right"};
186 static const char *wm8753_out3[] = {"VREF", "ROUT2", "Left + Right"};
187 static const char *wm8753_out4[] = {"VREF", "Capture ST", "LOUT2"};
188 static const char *wm8753_radcsel[] = {"PGA", "Line or RXP-RXN", "Sidetone"};
189 static const char *wm8753_ladcsel[] = {"PGA", "Line or RXP-RXN", "Line"};
190 static const char *wm8753_mono_adc[] = {"Stereo", "Analogue Mix Left",
191 "Analogue Mix Right", "Digital Mono Mix"};
192 static const char *wm8753_adc_hp[] = {"3.4Hz @ 48kHz", "82Hz @ 16k",
193 "82Hz @ 8kHz", "170Hz @ 8kHz"};
194 static const char *wm8753_adc_filter[] = {"HiFi", "Voice"};
195 static const char *wm8753_mic_sel[] = {"Mic 1", "Mic 2", "Mic 3"};
196 static const char *wm8753_dai_mode[] = {"DAI 0", "DAI 1", "DAI 2", "DAI 3"};
197 static const char *wm8753_dat_sel[] = {"Stereo", "Left ADC", "Right ADC",
198 "Channel Swap"};
199 static const char *wm8753_rout2_phase[] = {"Non Inverted", "Inverted"};
200
201 static const struct soc_enum wm8753_enum[] = {
202 SOC_ENUM_SINGLE(WM8753_BASS, 7, 2, wm8753_base),
203 SOC_ENUM_SINGLE(WM8753_BASS, 4, 6, wm8753_base_filter),
204 SOC_ENUM_SINGLE(WM8753_TREBLE, 6, 2, wm8753_treble),
205 SOC_ENUM_SINGLE(WM8753_ALC1, 7, 4, wm8753_alc_func),
206 SOC_ENUM_SINGLE(WM8753_NGATE, 1, 2, wm8753_ng_type),
207 SOC_ENUM_SINGLE(WM8753_3D, 7, 2, wm8753_3d_func),
208 SOC_ENUM_SINGLE(WM8753_3D, 6, 2, wm8753_3d_uc),
209 SOC_ENUM_SINGLE(WM8753_3D, 5, 2, wm8753_3d_lc),
210 SOC_ENUM_SINGLE(WM8753_DAC, 1, 4, wm8753_deemp),
211 SOC_ENUM_SINGLE(WM8753_DAC, 4, 4, wm8753_mono_mix),
212 SOC_ENUM_SINGLE(WM8753_DAC, 6, 2, wm8753_dac_phase),
213 SOC_ENUM_SINGLE(WM8753_INCTL1, 3, 4, wm8753_line_mix),
214 SOC_ENUM_SINGLE(WM8753_INCTL1, 2, 2, wm8753_mono_mux),
215 SOC_ENUM_SINGLE(WM8753_INCTL1, 1, 2, wm8753_right_mux),
216 SOC_ENUM_SINGLE(WM8753_INCTL1, 0, 2, wm8753_left_mux),
217 SOC_ENUM_SINGLE(WM8753_INCTL2, 6, 4, wm8753_rxmsel),
218 SOC_ENUM_SINGLE(WM8753_INCTL2, 4, 4, wm8753_sidetone_mux),
219 SOC_ENUM_SINGLE(WM8753_OUTCTL, 7, 4, wm8753_mono2_src),
220 SOC_ENUM_SINGLE(WM8753_OUTCTL, 0, 3, wm8753_out3),
221 SOC_ENUM_SINGLE(WM8753_ADCTL2, 7, 3, wm8753_out4),
222 SOC_ENUM_SINGLE(WM8753_ADCIN, 2, 3, wm8753_radcsel),
223 SOC_ENUM_SINGLE(WM8753_ADCIN, 0, 3, wm8753_ladcsel),
224 SOC_ENUM_SINGLE(WM8753_ADCIN, 4, 4, wm8753_mono_adc),
225 SOC_ENUM_SINGLE(WM8753_ADC, 2, 4, wm8753_adc_hp),
226 SOC_ENUM_SINGLE(WM8753_ADC, 4, 2, wm8753_adc_filter),
227 SOC_ENUM_SINGLE(WM8753_MICBIAS, 6, 3, wm8753_mic_sel),
228 SOC_ENUM_SINGLE(WM8753_IOCTL, 2, 4, wm8753_dai_mode),
229 SOC_ENUM_SINGLE(WM8753_ADC, 7, 4, wm8753_dat_sel),
230 SOC_ENUM_SINGLE(WM8753_OUTCTL, 2, 2, wm8753_rout2_phase),
231 };
232
233
wm8753_get_dai(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)234 static int wm8753_get_dai(struct snd_kcontrol *kcontrol,
235 struct snd_ctl_elem_value *ucontrol)
236 {
237 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
238 struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);
239
240 ucontrol->value.integer.value[0] = wm8753->dai_func;
241 return 0;
242 }
243
wm8753_set_dai(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)244 static int wm8753_set_dai(struct snd_kcontrol *kcontrol,
245 struct snd_ctl_elem_value *ucontrol)
246 {
247 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
248 struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);
249 u16 ioctl;
250
251 if (wm8753->dai_func == ucontrol->value.integer.value[0])
252 return 0;
253
254 if (codec->active)
255 return -EBUSY;
256
257 ioctl = snd_soc_read(codec, WM8753_IOCTL);
258
259 wm8753->dai_func = ucontrol->value.integer.value[0];
260
261 if (((ioctl >> 2) & 0x3) == wm8753->dai_func)
262 return 1;
263
264 ioctl = (ioctl & 0x1f3) | (wm8753->dai_func << 2);
265 snd_soc_write(codec, WM8753_IOCTL, ioctl);
266
267
268 wm8753_hifi_write_dai_fmt(codec, wm8753->hifi_fmt);
269 wm8753_voice_write_dai_fmt(codec, wm8753->voice_fmt);
270
271 return 1;
272 }
273
274 static const DECLARE_TLV_DB_SCALE(rec_mix_tlv, -1500, 300, 0);
275 static const DECLARE_TLV_DB_SCALE(mic_preamp_tlv, 1200, 600, 0);
276 static const DECLARE_TLV_DB_SCALE(adc_tlv, -9750, 50, 1);
277 static const DECLARE_TLV_DB_SCALE(dac_tlv, -12750, 50, 1);
278 static const unsigned int out_tlv[] = {
279 TLV_DB_RANGE_HEAD(2),
280 /* 0000000 - 0101111 = "Analogue mute" */
281 0, 48, TLV_DB_SCALE_ITEM(-25500, 0, 0),
282 48, 127, TLV_DB_SCALE_ITEM(-7300, 100, 0),
283 };
284 static const DECLARE_TLV_DB_SCALE(mix_tlv, -1500, 300, 0);
285 static const DECLARE_TLV_DB_SCALE(voice_mix_tlv, -1200, 300, 0);
286 static const DECLARE_TLV_DB_SCALE(pga_tlv, -1725, 75, 0);
287
288 static const struct snd_kcontrol_new wm8753_snd_controls[] = {
289 SOC_DOUBLE_R_TLV("PCM Volume", WM8753_LDAC, WM8753_RDAC, 0, 255, 0, dac_tlv),
290
291 SOC_DOUBLE_R_TLV("ADC Capture Volume", WM8753_LADC, WM8753_RADC, 0, 255, 0,
292 adc_tlv),
293
294 SOC_DOUBLE_R_TLV("Headphone Playback Volume", WM8753_LOUT1V, WM8753_ROUT1V,
295 0, 127, 0, out_tlv),
296 SOC_DOUBLE_R_TLV("Speaker Playback Volume", WM8753_LOUT2V, WM8753_ROUT2V, 0,
297 127, 0, out_tlv),
298
299 SOC_SINGLE_TLV("Mono Playback Volume", WM8753_MOUTV, 0, 127, 0, out_tlv),
300
301 SOC_DOUBLE_R_TLV("Bypass Playback Volume", WM8753_LOUTM1, WM8753_ROUTM1, 4, 7,
302 1, mix_tlv),
303 SOC_DOUBLE_R_TLV("Sidetone Playback Volume", WM8753_LOUTM2, WM8753_ROUTM2, 4,
304 7, 1, mix_tlv),
305 SOC_DOUBLE_R_TLV("Voice Playback Volume", WM8753_LOUTM2, WM8753_ROUTM2, 0, 7,
306 1, voice_mix_tlv),
307
308 SOC_DOUBLE_R("Headphone Playback ZC Switch", WM8753_LOUT1V, WM8753_ROUT1V, 7,
309 1, 0),
310 SOC_DOUBLE_R("Speaker Playback ZC Switch", WM8753_LOUT2V, WM8753_ROUT2V, 7,
311 1, 0),
312
313 SOC_SINGLE_TLV("Mono Bypass Playback Volume", WM8753_MOUTM1, 4, 7, 1, mix_tlv),
314 SOC_SINGLE_TLV("Mono Sidetone Playback Volume", WM8753_MOUTM2, 4, 7, 1,
315 mix_tlv),
316 SOC_SINGLE_TLV("Mono Voice Playback Volume", WM8753_MOUTM2, 0, 7, 1,
317 voice_mix_tlv),
318 SOC_SINGLE("Mono Playback ZC Switch", WM8753_MOUTV, 7, 1, 0),
319
320 SOC_ENUM("Bass Boost", wm8753_enum[0]),
321 SOC_ENUM("Bass Filter", wm8753_enum[1]),
322 SOC_SINGLE("Bass Volume", WM8753_BASS, 0, 15, 1),
323
324 SOC_SINGLE("Treble Volume", WM8753_TREBLE, 0, 15, 1),
325 SOC_ENUM("Treble Cut-off", wm8753_enum[2]),
326
327 SOC_DOUBLE_TLV("Sidetone Capture Volume", WM8753_RECMIX1, 0, 4, 7, 1,
328 rec_mix_tlv),
329 SOC_SINGLE_TLV("Voice Sidetone Capture Volume", WM8753_RECMIX2, 0, 7, 1,
330 rec_mix_tlv),
331
332 SOC_DOUBLE_R_TLV("Capture Volume", WM8753_LINVOL, WM8753_RINVOL, 0, 63, 0,
333 pga_tlv),
334 SOC_DOUBLE_R("Capture ZC Switch", WM8753_LINVOL, WM8753_RINVOL, 6, 1, 0),
335 SOC_DOUBLE_R("Capture Switch", WM8753_LINVOL, WM8753_RINVOL, 7, 1, 1),
336
337 SOC_ENUM("Capture Filter Select", wm8753_enum[23]),
338 SOC_ENUM("Capture Filter Cut-off", wm8753_enum[24]),
339 SOC_SINGLE("Capture Filter Switch", WM8753_ADC, 0, 1, 1),
340
341 SOC_SINGLE("ALC Capture Target Volume", WM8753_ALC1, 0, 7, 0),
342 SOC_SINGLE("ALC Capture Max Volume", WM8753_ALC1, 4, 7, 0),
343 SOC_ENUM("ALC Capture Function", wm8753_enum[3]),
344 SOC_SINGLE("ALC Capture ZC Switch", WM8753_ALC2, 8, 1, 0),
345 SOC_SINGLE("ALC Capture Hold Time", WM8753_ALC2, 0, 15, 1),
346 SOC_SINGLE("ALC Capture Decay Time", WM8753_ALC3, 4, 15, 1),
347 SOC_SINGLE("ALC Capture Attack Time", WM8753_ALC3, 0, 15, 0),
348 SOC_SINGLE("ALC Capture NG Threshold", WM8753_NGATE, 3, 31, 0),
349 SOC_ENUM("ALC Capture NG Type", wm8753_enum[4]),
350 SOC_SINGLE("ALC Capture NG Switch", WM8753_NGATE, 0, 1, 0),
351
352 SOC_ENUM("3D Function", wm8753_enum[5]),
353 SOC_ENUM("3D Upper Cut-off", wm8753_enum[6]),
354 SOC_ENUM("3D Lower Cut-off", wm8753_enum[7]),
355 SOC_SINGLE("3D Volume", WM8753_3D, 1, 15, 0),
356 SOC_SINGLE("3D Switch", WM8753_3D, 0, 1, 0),
357
358 SOC_SINGLE("Capture 6dB Attenuate", WM8753_ADCTL1, 2, 1, 0),
359 SOC_SINGLE("Playback 6dB Attenuate", WM8753_ADCTL1, 1, 1, 0),
360
361 SOC_ENUM("De-emphasis", wm8753_enum[8]),
362 SOC_ENUM("Playback Mono Mix", wm8753_enum[9]),
363 SOC_ENUM("Playback Phase", wm8753_enum[10]),
364
365 SOC_SINGLE_TLV("Mic2 Capture Volume", WM8753_INCTL1, 7, 3, 0, mic_preamp_tlv),
366 SOC_SINGLE_TLV("Mic1 Capture Volume", WM8753_INCTL1, 5, 3, 0, mic_preamp_tlv),
367
368 SOC_ENUM_EXT("DAI Mode", wm8753_enum[26], wm8753_get_dai, wm8753_set_dai),
369
370 SOC_ENUM("ADC Data Select", wm8753_enum[27]),
371 SOC_ENUM("ROUT2 Phase", wm8753_enum[28]),
372 };
373
374 /*
375 * _DAPM_ Controls
376 */
377
378 /* Left Mixer */
379 static const struct snd_kcontrol_new wm8753_left_mixer_controls[] = {
380 SOC_DAPM_SINGLE("Voice Playback Switch", WM8753_LOUTM2, 8, 1, 0),
381 SOC_DAPM_SINGLE("Sidetone Playback Switch", WM8753_LOUTM2, 7, 1, 0),
382 SOC_DAPM_SINGLE("Left Playback Switch", WM8753_LOUTM1, 8, 1, 0),
383 SOC_DAPM_SINGLE("Bypass Playback Switch", WM8753_LOUTM1, 7, 1, 0),
384 };
385
386 /* Right mixer */
387 static const struct snd_kcontrol_new wm8753_right_mixer_controls[] = {
388 SOC_DAPM_SINGLE("Voice Playback Switch", WM8753_ROUTM2, 8, 1, 0),
389 SOC_DAPM_SINGLE("Sidetone Playback Switch", WM8753_ROUTM2, 7, 1, 0),
390 SOC_DAPM_SINGLE("Right Playback Switch", WM8753_ROUTM1, 8, 1, 0),
391 SOC_DAPM_SINGLE("Bypass Playback Switch", WM8753_ROUTM1, 7, 1, 0),
392 };
393
394 /* Mono mixer */
395 static const struct snd_kcontrol_new wm8753_mono_mixer_controls[] = {
396 SOC_DAPM_SINGLE("Left Playback Switch", WM8753_MOUTM1, 8, 1, 0),
397 SOC_DAPM_SINGLE("Right Playback Switch", WM8753_MOUTM2, 8, 1, 0),
398 SOC_DAPM_SINGLE("Voice Playback Switch", WM8753_MOUTM2, 3, 1, 0),
399 SOC_DAPM_SINGLE("Sidetone Playback Switch", WM8753_MOUTM2, 7, 1, 0),
400 SOC_DAPM_SINGLE("Bypass Playback Switch", WM8753_MOUTM1, 7, 1, 0),
401 };
402
403 /* Mono 2 Mux */
404 static const struct snd_kcontrol_new wm8753_mono2_controls =
405 SOC_DAPM_ENUM("Route", wm8753_enum[17]);
406
407 /* Out 3 Mux */
408 static const struct snd_kcontrol_new wm8753_out3_controls =
409 SOC_DAPM_ENUM("Route", wm8753_enum[18]);
410
411 /* Out 4 Mux */
412 static const struct snd_kcontrol_new wm8753_out4_controls =
413 SOC_DAPM_ENUM("Route", wm8753_enum[19]);
414
415 /* ADC Mono Mix */
416 static const struct snd_kcontrol_new wm8753_adc_mono_controls =
417 SOC_DAPM_ENUM("Route", wm8753_enum[22]);
418
419 /* Record mixer */
420 static const struct snd_kcontrol_new wm8753_record_mixer_controls[] = {
421 SOC_DAPM_SINGLE("Voice Capture Switch", WM8753_RECMIX2, 3, 1, 0),
422 SOC_DAPM_SINGLE("Left Capture Switch", WM8753_RECMIX1, 3, 1, 0),
423 SOC_DAPM_SINGLE("Right Capture Switch", WM8753_RECMIX1, 7, 1, 0),
424 };
425
426 /* Left ADC mux */
427 static const struct snd_kcontrol_new wm8753_adc_left_controls =
428 SOC_DAPM_ENUM("Route", wm8753_enum[21]);
429
430 /* Right ADC mux */
431 static const struct snd_kcontrol_new wm8753_adc_right_controls =
432 SOC_DAPM_ENUM("Route", wm8753_enum[20]);
433
434 /* MIC mux */
435 static const struct snd_kcontrol_new wm8753_mic_mux_controls =
436 SOC_DAPM_ENUM("Route", wm8753_enum[16]);
437
438 /* ALC mixer */
439 static const struct snd_kcontrol_new wm8753_alc_mixer_controls[] = {
440 SOC_DAPM_SINGLE("Line Capture Switch", WM8753_INCTL2, 3, 1, 0),
441 SOC_DAPM_SINGLE("Mic2 Capture Switch", WM8753_INCTL2, 2, 1, 0),
442 SOC_DAPM_SINGLE("Mic1 Capture Switch", WM8753_INCTL2, 1, 1, 0),
443 SOC_DAPM_SINGLE("Rx Capture Switch", WM8753_INCTL2, 0, 1, 0),
444 };
445
446 /* Left Line mux */
447 static const struct snd_kcontrol_new wm8753_line_left_controls =
448 SOC_DAPM_ENUM("Route", wm8753_enum[14]);
449
450 /* Right Line mux */
451 static const struct snd_kcontrol_new wm8753_line_right_controls =
452 SOC_DAPM_ENUM("Route", wm8753_enum[13]);
453
454 /* Mono Line mux */
455 static const struct snd_kcontrol_new wm8753_line_mono_controls =
456 SOC_DAPM_ENUM("Route", wm8753_enum[12]);
457
458 /* Line mux and mixer */
459 static const struct snd_kcontrol_new wm8753_line_mux_mix_controls =
460 SOC_DAPM_ENUM("Route", wm8753_enum[11]);
461
462 /* Rx mux and mixer */
463 static const struct snd_kcontrol_new wm8753_rx_mux_mix_controls =
464 SOC_DAPM_ENUM("Route", wm8753_enum[15]);
465
466 /* Mic Selector Mux */
467 static const struct snd_kcontrol_new wm8753_mic_sel_mux_controls =
468 SOC_DAPM_ENUM("Route", wm8753_enum[25]);
469
470 static const struct snd_soc_dapm_widget wm8753_dapm_widgets[] = {
471 SND_SOC_DAPM_MICBIAS("Mic Bias", WM8753_PWR1, 5, 0),
472 SND_SOC_DAPM_MIXER("Left Mixer", WM8753_PWR4, 0, 0,
473 &wm8753_left_mixer_controls[0], ARRAY_SIZE(wm8753_left_mixer_controls)),
474 SND_SOC_DAPM_PGA("Left Out 1", WM8753_PWR3, 8, 0, NULL, 0),
475 SND_SOC_DAPM_PGA("Left Out 2", WM8753_PWR3, 6, 0, NULL, 0),
476 SND_SOC_DAPM_DAC("Left DAC", "Left HiFi Playback", WM8753_PWR1, 3, 0),
477 SND_SOC_DAPM_OUTPUT("LOUT1"),
478 SND_SOC_DAPM_OUTPUT("LOUT2"),
479 SND_SOC_DAPM_MIXER("Right Mixer", WM8753_PWR4, 1, 0,
480 &wm8753_right_mixer_controls[0], ARRAY_SIZE(wm8753_right_mixer_controls)),
481 SND_SOC_DAPM_PGA("Right Out 1", WM8753_PWR3, 7, 0, NULL, 0),
482 SND_SOC_DAPM_PGA("Right Out 2", WM8753_PWR3, 5, 0, NULL, 0),
483 SND_SOC_DAPM_DAC("Right DAC", "Right HiFi Playback", WM8753_PWR1, 2, 0),
484 SND_SOC_DAPM_OUTPUT("ROUT1"),
485 SND_SOC_DAPM_OUTPUT("ROUT2"),
486 SND_SOC_DAPM_MIXER("Mono Mixer", WM8753_PWR4, 2, 0,
487 &wm8753_mono_mixer_controls[0], ARRAY_SIZE(wm8753_mono_mixer_controls)),
488 SND_SOC_DAPM_PGA("Mono Out 1", WM8753_PWR3, 2, 0, NULL, 0),
489 SND_SOC_DAPM_PGA("Mono Out 2", WM8753_PWR3, 1, 0, NULL, 0),
490 SND_SOC_DAPM_DAC("Voice DAC", "Voice Playback", WM8753_PWR1, 4, 0),
491 SND_SOC_DAPM_OUTPUT("MONO1"),
492 SND_SOC_DAPM_MUX("Mono 2 Mux", SND_SOC_NOPM, 0, 0, &wm8753_mono2_controls),
493 SND_SOC_DAPM_OUTPUT("MONO2"),
494 SND_SOC_DAPM_MIXER("Out3 Left + Right", -1, 0, 0, NULL, 0),
495 SND_SOC_DAPM_MUX("Out3 Mux", SND_SOC_NOPM, 0, 0, &wm8753_out3_controls),
496 SND_SOC_DAPM_PGA("Out 3", WM8753_PWR3, 4, 0, NULL, 0),
497 SND_SOC_DAPM_OUTPUT("OUT3"),
498 SND_SOC_DAPM_MUX("Out4 Mux", SND_SOC_NOPM, 0, 0, &wm8753_out4_controls),
499 SND_SOC_DAPM_PGA("Out 4", WM8753_PWR3, 3, 0, NULL, 0),
500 SND_SOC_DAPM_OUTPUT("OUT4"),
501 SND_SOC_DAPM_MIXER("Playback Mixer", WM8753_PWR4, 3, 0,
502 &wm8753_record_mixer_controls[0],
503 ARRAY_SIZE(wm8753_record_mixer_controls)),
504 SND_SOC_DAPM_ADC("Left ADC", "Left Capture", WM8753_PWR2, 3, 0),
505 SND_SOC_DAPM_ADC("Right ADC", "Right Capture", WM8753_PWR2, 2, 0),
506 SND_SOC_DAPM_MUX("Capture Left Mixer", SND_SOC_NOPM, 0, 0,
507 &wm8753_adc_mono_controls),
508 SND_SOC_DAPM_MUX("Capture Right Mixer", SND_SOC_NOPM, 0, 0,
509 &wm8753_adc_mono_controls),
510 SND_SOC_DAPM_MUX("Capture Left Mux", SND_SOC_NOPM, 0, 0,
511 &wm8753_adc_left_controls),
512 SND_SOC_DAPM_MUX("Capture Right Mux", SND_SOC_NOPM, 0, 0,
513 &wm8753_adc_right_controls),
514 SND_SOC_DAPM_MUX("Mic Sidetone Mux", SND_SOC_NOPM, 0, 0,
515 &wm8753_mic_mux_controls),
516 SND_SOC_DAPM_PGA("Left Capture Volume", WM8753_PWR2, 5, 0, NULL, 0),
517 SND_SOC_DAPM_PGA("Right Capture Volume", WM8753_PWR2, 4, 0, NULL, 0),
518 SND_SOC_DAPM_MIXER("ALC Mixer", WM8753_PWR2, 6, 0,
519 &wm8753_alc_mixer_controls[0], ARRAY_SIZE(wm8753_alc_mixer_controls)),
520 SND_SOC_DAPM_MUX("Line Left Mux", SND_SOC_NOPM, 0, 0,
521 &wm8753_line_left_controls),
522 SND_SOC_DAPM_MUX("Line Right Mux", SND_SOC_NOPM, 0, 0,
523 &wm8753_line_right_controls),
524 SND_SOC_DAPM_MUX("Line Mono Mux", SND_SOC_NOPM, 0, 0,
525 &wm8753_line_mono_controls),
526 SND_SOC_DAPM_MUX("Line Mixer", WM8753_PWR2, 0, 0,
527 &wm8753_line_mux_mix_controls),
528 SND_SOC_DAPM_MUX("Rx Mixer", WM8753_PWR2, 1, 0,
529 &wm8753_rx_mux_mix_controls),
530 SND_SOC_DAPM_PGA("Mic 1 Volume", WM8753_PWR2, 8, 0, NULL, 0),
531 SND_SOC_DAPM_PGA("Mic 2 Volume", WM8753_PWR2, 7, 0, NULL, 0),
532 SND_SOC_DAPM_MUX("Mic Selection Mux", SND_SOC_NOPM, 0, 0,
533 &wm8753_mic_sel_mux_controls),
534 SND_SOC_DAPM_INPUT("LINE1"),
535 SND_SOC_DAPM_INPUT("LINE2"),
536 SND_SOC_DAPM_INPUT("RXP"),
537 SND_SOC_DAPM_INPUT("RXN"),
538 SND_SOC_DAPM_INPUT("ACIN"),
539 SND_SOC_DAPM_OUTPUT("ACOP"),
540 SND_SOC_DAPM_INPUT("MIC1N"),
541 SND_SOC_DAPM_INPUT("MIC1"),
542 SND_SOC_DAPM_INPUT("MIC2N"),
543 SND_SOC_DAPM_INPUT("MIC2"),
544 SND_SOC_DAPM_VMID("VREF"),
545 };
546
547 static const struct snd_soc_dapm_route wm8753_dapm_routes[] = {
548 /* left mixer */
549 {"Left Mixer", "Left Playback Switch", "Left DAC"},
550 {"Left Mixer", "Voice Playback Switch", "Voice DAC"},
551 {"Left Mixer", "Sidetone Playback Switch", "Mic Sidetone Mux"},
552 {"Left Mixer", "Bypass Playback Switch", "Line Left Mux"},
553
554 /* right mixer */
555 {"Right Mixer", "Right Playback Switch", "Right DAC"},
556 {"Right Mixer", "Voice Playback Switch", "Voice DAC"},
557 {"Right Mixer", "Sidetone Playback Switch", "Mic Sidetone Mux"},
558 {"Right Mixer", "Bypass Playback Switch", "Line Right Mux"},
559
560 /* mono mixer */
561 {"Mono Mixer", "Voice Playback Switch", "Voice DAC"},
562 {"Mono Mixer", "Left Playback Switch", "Left DAC"},
563 {"Mono Mixer", "Right Playback Switch", "Right DAC"},
564 {"Mono Mixer", "Sidetone Playback Switch", "Mic Sidetone Mux"},
565 {"Mono Mixer", "Bypass Playback Switch", "Line Mono Mux"},
566
567 /* left out */
568 {"Left Out 1", NULL, "Left Mixer"},
569 {"Left Out 2", NULL, "Left Mixer"},
570 {"LOUT1", NULL, "Left Out 1"},
571 {"LOUT2", NULL, "Left Out 2"},
572
573 /* right out */
574 {"Right Out 1", NULL, "Right Mixer"},
575 {"Right Out 2", NULL, "Right Mixer"},
576 {"ROUT1", NULL, "Right Out 1"},
577 {"ROUT2", NULL, "Right Out 2"},
578
579 /* mono 1 out */
580 {"Mono Out 1", NULL, "Mono Mixer"},
581 {"MONO1", NULL, "Mono Out 1"},
582
583 /* mono 2 out */
584 {"Mono 2 Mux", "Left + Right", "Out3 Left + Right"},
585 {"Mono 2 Mux", "Inverted Mono 1", "MONO1"},
586 {"Mono 2 Mux", "Left", "Left Mixer"},
587 {"Mono 2 Mux", "Right", "Right Mixer"},
588 {"Mono Out 2", NULL, "Mono 2 Mux"},
589 {"MONO2", NULL, "Mono Out 2"},
590
591 /* out 3 */
592 {"Out3 Left + Right", NULL, "Left Mixer"},
593 {"Out3 Left + Right", NULL, "Right Mixer"},
594 {"Out3 Mux", "VREF", "VREF"},
595 {"Out3 Mux", "Left + Right", "Out3 Left + Right"},
596 {"Out3 Mux", "ROUT2", "ROUT2"},
597 {"Out 3", NULL, "Out3 Mux"},
598 {"OUT3", NULL, "Out 3"},
599
600 /* out 4 */
601 {"Out4 Mux", "VREF", "VREF"},
602 {"Out4 Mux", "Capture ST", "Playback Mixer"},
603 {"Out4 Mux", "LOUT2", "LOUT2"},
604 {"Out 4", NULL, "Out4 Mux"},
605 {"OUT4", NULL, "Out 4"},
606
607 /* record mixer */
608 {"Playback Mixer", "Left Capture Switch", "Left Mixer"},
609 {"Playback Mixer", "Voice Capture Switch", "Mono Mixer"},
610 {"Playback Mixer", "Right Capture Switch", "Right Mixer"},
611
612 /* Mic/SideTone Mux */
613 {"Mic Sidetone Mux", "Left PGA", "Left Capture Volume"},
614 {"Mic Sidetone Mux", "Right PGA", "Right Capture Volume"},
615 {"Mic Sidetone Mux", "Mic 1", "Mic 1 Volume"},
616 {"Mic Sidetone Mux", "Mic 2", "Mic 2 Volume"},
617
618 /* Capture Left Mux */
619 {"Capture Left Mux", "PGA", "Left Capture Volume"},
620 {"Capture Left Mux", "Line or RXP-RXN", "Line Left Mux"},
621 {"Capture Left Mux", "Line", "LINE1"},
622
623 /* Capture Right Mux */
624 {"Capture Right Mux", "PGA", "Right Capture Volume"},
625 {"Capture Right Mux", "Line or RXP-RXN", "Line Right Mux"},
626 {"Capture Right Mux", "Sidetone", "Playback Mixer"},
627
628 /* Mono Capture mixer-mux */
629 {"Capture Right Mixer", "Stereo", "Capture Right Mux"},
630 {"Capture Left Mixer", "Stereo", "Capture Left Mux"},
631 {"Capture Left Mixer", "Analogue Mix Left", "Capture Left Mux"},
632 {"Capture Left Mixer", "Analogue Mix Left", "Capture Right Mux"},
633 {"Capture Right Mixer", "Analogue Mix Right", "Capture Left Mux"},
634 {"Capture Right Mixer", "Analogue Mix Right", "Capture Right Mux"},
635 {"Capture Left Mixer", "Digital Mono Mix", "Capture Left Mux"},
636 {"Capture Left Mixer", "Digital Mono Mix", "Capture Right Mux"},
637 {"Capture Right Mixer", "Digital Mono Mix", "Capture Left Mux"},
638 {"Capture Right Mixer", "Digital Mono Mix", "Capture Right Mux"},
639
640 /* ADC */
641 {"Left ADC", NULL, "Capture Left Mixer"},
642 {"Right ADC", NULL, "Capture Right Mixer"},
643
644 /* Left Capture Volume */
645 {"Left Capture Volume", NULL, "ACIN"},
646
647 /* Right Capture Volume */
648 {"Right Capture Volume", NULL, "Mic 2 Volume"},
649
650 /* ALC Mixer */
651 {"ALC Mixer", "Line Capture Switch", "Line Mixer"},
652 {"ALC Mixer", "Mic2 Capture Switch", "Mic 2 Volume"},
653 {"ALC Mixer", "Mic1 Capture Switch", "Mic 1 Volume"},
654 {"ALC Mixer", "Rx Capture Switch", "Rx Mixer"},
655
656 /* Line Left Mux */
657 {"Line Left Mux", "Line 1", "LINE1"},
658 {"Line Left Mux", "Rx Mix", "Rx Mixer"},
659
660 /* Line Right Mux */
661 {"Line Right Mux", "Line 2", "LINE2"},
662 {"Line Right Mux", "Rx Mix", "Rx Mixer"},
663
664 /* Line Mono Mux */
665 {"Line Mono Mux", "Line Mix", "Line Mixer"},
666 {"Line Mono Mux", "Rx Mix", "Rx Mixer"},
667
668 /* Line Mixer/Mux */
669 {"Line Mixer", "Line 1 + 2", "LINE1"},
670 {"Line Mixer", "Line 1 - 2", "LINE1"},
671 {"Line Mixer", "Line 1 + 2", "LINE2"},
672 {"Line Mixer", "Line 1 - 2", "LINE2"},
673 {"Line Mixer", "Line 1", "LINE1"},
674 {"Line Mixer", "Line 2", "LINE2"},
675
676 /* Rx Mixer/Mux */
677 {"Rx Mixer", "RXP - RXN", "RXP"},
678 {"Rx Mixer", "RXP + RXN", "RXP"},
679 {"Rx Mixer", "RXP - RXN", "RXN"},
680 {"Rx Mixer", "RXP + RXN", "RXN"},
681 {"Rx Mixer", "RXP", "RXP"},
682 {"Rx Mixer", "RXN", "RXN"},
683
684 /* Mic 1 Volume */
685 {"Mic 1 Volume", NULL, "MIC1N"},
686 {"Mic 1 Volume", NULL, "Mic Selection Mux"},
687
688 /* Mic 2 Volume */
689 {"Mic 2 Volume", NULL, "MIC2N"},
690 {"Mic 2 Volume", NULL, "MIC2"},
691
692 /* Mic Selector Mux */
693 {"Mic Selection Mux", "Mic 1", "MIC1"},
694 {"Mic Selection Mux", "Mic 2", "MIC2N"},
695 {"Mic Selection Mux", "Mic 3", "MIC2"},
696
697 /* ACOP */
698 {"ACOP", NULL, "ALC Mixer"},
699 };
700
701 /* PLL divisors */
702 struct _pll_div {
703 u32 div2:1;
704 u32 n:4;
705 u32 k:24;
706 };
707
708 /* The size in bits of the pll divide multiplied by 10
709 * to allow rounding later */
710 #define FIXED_PLL_SIZE ((1 << 22) * 10)
711
pll_factors(struct _pll_div * pll_div,unsigned int target,unsigned int source)712 static void pll_factors(struct _pll_div *pll_div, unsigned int target,
713 unsigned int source)
714 {
715 u64 Kpart;
716 unsigned int K, Ndiv, Nmod;
717
718 Ndiv = target / source;
719 if (Ndiv < 6) {
720 source >>= 1;
721 pll_div->div2 = 1;
722 Ndiv = target / source;
723 } else
724 pll_div->div2 = 0;
725
726 if ((Ndiv < 6) || (Ndiv > 12))
727 printk(KERN_WARNING
728 "wm8753: unsupported N = %u\n", Ndiv);
729
730 pll_div->n = Ndiv;
731 Nmod = target % source;
732 Kpart = FIXED_PLL_SIZE * (long long)Nmod;
733
734 do_div(Kpart, source);
735
736 K = Kpart & 0xFFFFFFFF;
737
738 /* Check if we need to round */
739 if ((K % 10) >= 5)
740 K += 5;
741
742 /* Move down to proper range now rounding is done */
743 K /= 10;
744
745 pll_div->k = K;
746 }
747
wm8753_set_dai_pll(struct snd_soc_dai * codec_dai,int pll_id,int source,unsigned int freq_in,unsigned int freq_out)748 static int wm8753_set_dai_pll(struct snd_soc_dai *codec_dai, int pll_id,
749 int source, unsigned int freq_in, unsigned int freq_out)
750 {
751 u16 reg, enable;
752 int offset;
753 struct snd_soc_codec *codec = codec_dai->codec;
754
755 if (pll_id < WM8753_PLL1 || pll_id > WM8753_PLL2)
756 return -ENODEV;
757
758 if (pll_id == WM8753_PLL1) {
759 offset = 0;
760 enable = 0x10;
761 reg = snd_soc_read(codec, WM8753_CLOCK) & 0xffef;
762 } else {
763 offset = 4;
764 enable = 0x8;
765 reg = snd_soc_read(codec, WM8753_CLOCK) & 0xfff7;
766 }
767
768 if (!freq_in || !freq_out) {
769 /* disable PLL */
770 snd_soc_write(codec, WM8753_PLL1CTL1 + offset, 0x0026);
771 snd_soc_write(codec, WM8753_CLOCK, reg);
772 return 0;
773 } else {
774 u16 value = 0;
775 struct _pll_div pll_div;
776
777 pll_factors(&pll_div, freq_out * 8, freq_in);
778
779 /* set up N and K PLL divisor ratios */
780 /* bits 8:5 = PLL_N, bits 3:0 = PLL_K[21:18] */
781 value = (pll_div.n << 5) + ((pll_div.k & 0x3c0000) >> 18);
782 snd_soc_write(codec, WM8753_PLL1CTL2 + offset, value);
783
784 /* bits 8:0 = PLL_K[17:9] */
785 value = (pll_div.k & 0x03fe00) >> 9;
786 snd_soc_write(codec, WM8753_PLL1CTL3 + offset, value);
787
788 /* bits 8:0 = PLL_K[8:0] */
789 value = pll_div.k & 0x0001ff;
790 snd_soc_write(codec, WM8753_PLL1CTL4 + offset, value);
791
792 /* set PLL as input and enable */
793 snd_soc_write(codec, WM8753_PLL1CTL1 + offset, 0x0027 |
794 (pll_div.div2 << 3));
795 snd_soc_write(codec, WM8753_CLOCK, reg | enable);
796 }
797 return 0;
798 }
799
800 struct _coeff_div {
801 u32 mclk;
802 u32 rate;
803 u8 sr:5;
804 u8 usb:1;
805 };
806
807 /* codec hifi mclk (after PLL) clock divider coefficients */
808 static const struct _coeff_div coeff_div[] = {
809 /* 8k */
810 {12288000, 8000, 0x6, 0x0},
811 {11289600, 8000, 0x16, 0x0},
812 {18432000, 8000, 0x7, 0x0},
813 {16934400, 8000, 0x17, 0x0},
814 {12000000, 8000, 0x6, 0x1},
815
816 /* 11.025k */
817 {11289600, 11025, 0x18, 0x0},
818 {16934400, 11025, 0x19, 0x0},
819 {12000000, 11025, 0x19, 0x1},
820
821 /* 16k */
822 {12288000, 16000, 0xa, 0x0},
823 {18432000, 16000, 0xb, 0x0},
824 {12000000, 16000, 0xa, 0x1},
825
826 /* 22.05k */
827 {11289600, 22050, 0x1a, 0x0},
828 {16934400, 22050, 0x1b, 0x0},
829 {12000000, 22050, 0x1b, 0x1},
830
831 /* 32k */
832 {12288000, 32000, 0xc, 0x0},
833 {18432000, 32000, 0xd, 0x0},
834 {12000000, 32000, 0xa, 0x1},
835
836 /* 44.1k */
837 {11289600, 44100, 0x10, 0x0},
838 {16934400, 44100, 0x11, 0x0},
839 {12000000, 44100, 0x11, 0x1},
840
841 /* 48k */
842 {12288000, 48000, 0x0, 0x0},
843 {18432000, 48000, 0x1, 0x0},
844 {12000000, 48000, 0x0, 0x1},
845
846 /* 88.2k */
847 {11289600, 88200, 0x1e, 0x0},
848 {16934400, 88200, 0x1f, 0x0},
849 {12000000, 88200, 0x1f, 0x1},
850
851 /* 96k */
852 {12288000, 96000, 0xe, 0x0},
853 {18432000, 96000, 0xf, 0x0},
854 {12000000, 96000, 0xe, 0x1},
855 };
856
get_coeff(int mclk,int rate)857 static int get_coeff(int mclk, int rate)
858 {
859 int i;
860
861 for (i = 0; i < ARRAY_SIZE(coeff_div); i++) {
862 if (coeff_div[i].rate == rate && coeff_div[i].mclk == mclk)
863 return i;
864 }
865 return -EINVAL;
866 }
867
868 /*
869 * Clock after PLL and dividers
870 */
wm8753_set_dai_sysclk(struct snd_soc_dai * codec_dai,int clk_id,unsigned int freq,int dir)871 static int wm8753_set_dai_sysclk(struct snd_soc_dai *codec_dai,
872 int clk_id, unsigned int freq, int dir)
873 {
874 struct snd_soc_codec *codec = codec_dai->codec;
875 struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);
876
877 switch (freq) {
878 case 11289600:
879 case 12000000:
880 case 12288000:
881 case 16934400:
882 case 18432000:
883 if (clk_id == WM8753_MCLK) {
884 wm8753->sysclk = freq;
885 return 0;
886 } else if (clk_id == WM8753_PCMCLK) {
887 wm8753->pcmclk = freq;
888 return 0;
889 }
890 break;
891 }
892 return -EINVAL;
893 }
894
895 /*
896 * Set's ADC and Voice DAC format.
897 */
wm8753_vdac_adc_set_dai_fmt(struct snd_soc_codec * codec,unsigned int fmt)898 static int wm8753_vdac_adc_set_dai_fmt(struct snd_soc_codec *codec,
899 unsigned int fmt)
900 {
901 u16 voice = snd_soc_read(codec, WM8753_PCM) & 0x01ec;
902
903 /* interface format */
904 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
905 case SND_SOC_DAIFMT_I2S:
906 voice |= 0x0002;
907 break;
908 case SND_SOC_DAIFMT_RIGHT_J:
909 break;
910 case SND_SOC_DAIFMT_LEFT_J:
911 voice |= 0x0001;
912 break;
913 case SND_SOC_DAIFMT_DSP_A:
914 voice |= 0x0003;
915 break;
916 case SND_SOC_DAIFMT_DSP_B:
917 voice |= 0x0013;
918 break;
919 default:
920 return -EINVAL;
921 }
922
923 snd_soc_write(codec, WM8753_PCM, voice);
924 return 0;
925 }
926
927 /*
928 * Set PCM DAI bit size and sample rate.
929 */
wm8753_pcm_hw_params(struct snd_pcm_substream * substream,struct snd_pcm_hw_params * params,struct snd_soc_dai * dai)930 static int wm8753_pcm_hw_params(struct snd_pcm_substream *substream,
931 struct snd_pcm_hw_params *params,
932 struct snd_soc_dai *dai)
933 {
934 struct snd_soc_pcm_runtime *rtd = substream->private_data;
935 struct snd_soc_codec *codec = rtd->codec;
936 struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);
937 u16 voice = snd_soc_read(codec, WM8753_PCM) & 0x01f3;
938 u16 srate = snd_soc_read(codec, WM8753_SRATE1) & 0x017f;
939
940 /* bit size */
941 switch (params_format(params)) {
942 case SNDRV_PCM_FORMAT_S16_LE:
943 break;
944 case SNDRV_PCM_FORMAT_S20_3LE:
945 voice |= 0x0004;
946 break;
947 case SNDRV_PCM_FORMAT_S24_LE:
948 voice |= 0x0008;
949 break;
950 case SNDRV_PCM_FORMAT_S32_LE:
951 voice |= 0x000c;
952 break;
953 }
954
955 /* sample rate */
956 if (params_rate(params) * 384 == wm8753->pcmclk)
957 srate |= 0x80;
958 snd_soc_write(codec, WM8753_SRATE1, srate);
959
960 snd_soc_write(codec, WM8753_PCM, voice);
961 return 0;
962 }
963
964 /*
965 * Set's PCM dai fmt and BCLK.
966 */
wm8753_pcm_set_dai_fmt(struct snd_soc_codec * codec,unsigned int fmt)967 static int wm8753_pcm_set_dai_fmt(struct snd_soc_codec *codec,
968 unsigned int fmt)
969 {
970 u16 voice, ioctl;
971
972 voice = snd_soc_read(codec, WM8753_PCM) & 0x011f;
973 ioctl = snd_soc_read(codec, WM8753_IOCTL) & 0x015d;
974
975 /* set master/slave audio interface */
976 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
977 case SND_SOC_DAIFMT_CBS_CFS:
978 break;
979 case SND_SOC_DAIFMT_CBM_CFM:
980 ioctl |= 0x2;
981 case SND_SOC_DAIFMT_CBM_CFS:
982 voice |= 0x0040;
983 break;
984 default:
985 return -EINVAL;
986 }
987
988 /* clock inversion */
989 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
990 case SND_SOC_DAIFMT_DSP_A:
991 case SND_SOC_DAIFMT_DSP_B:
992 /* frame inversion not valid for DSP modes */
993 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
994 case SND_SOC_DAIFMT_NB_NF:
995 break;
996 case SND_SOC_DAIFMT_IB_NF:
997 voice |= 0x0080;
998 break;
999 default:
1000 return -EINVAL;
1001 }
1002 break;
1003 case SND_SOC_DAIFMT_I2S:
1004 case SND_SOC_DAIFMT_RIGHT_J:
1005 case SND_SOC_DAIFMT_LEFT_J:
1006 voice &= ~0x0010;
1007 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
1008 case SND_SOC_DAIFMT_NB_NF:
1009 break;
1010 case SND_SOC_DAIFMT_IB_IF:
1011 voice |= 0x0090;
1012 break;
1013 case SND_SOC_DAIFMT_IB_NF:
1014 voice |= 0x0080;
1015 break;
1016 case SND_SOC_DAIFMT_NB_IF:
1017 voice |= 0x0010;
1018 break;
1019 default:
1020 return -EINVAL;
1021 }
1022 break;
1023 default:
1024 return -EINVAL;
1025 }
1026
1027 snd_soc_write(codec, WM8753_PCM, voice);
1028 snd_soc_write(codec, WM8753_IOCTL, ioctl);
1029 return 0;
1030 }
1031
wm8753_set_dai_clkdiv(struct snd_soc_dai * codec_dai,int div_id,int div)1032 static int wm8753_set_dai_clkdiv(struct snd_soc_dai *codec_dai,
1033 int div_id, int div)
1034 {
1035 struct snd_soc_codec *codec = codec_dai->codec;
1036 u16 reg;
1037
1038 switch (div_id) {
1039 case WM8753_PCMDIV:
1040 reg = snd_soc_read(codec, WM8753_CLOCK) & 0x003f;
1041 snd_soc_write(codec, WM8753_CLOCK, reg | div);
1042 break;
1043 case WM8753_BCLKDIV:
1044 reg = snd_soc_read(codec, WM8753_SRATE2) & 0x01c7;
1045 snd_soc_write(codec, WM8753_SRATE2, reg | div);
1046 break;
1047 case WM8753_VXCLKDIV:
1048 reg = snd_soc_read(codec, WM8753_SRATE2) & 0x003f;
1049 snd_soc_write(codec, WM8753_SRATE2, reg | div);
1050 break;
1051 default:
1052 return -EINVAL;
1053 }
1054 return 0;
1055 }
1056
1057 /*
1058 * Set's HiFi DAC format.
1059 */
wm8753_hdac_set_dai_fmt(struct snd_soc_codec * codec,unsigned int fmt)1060 static int wm8753_hdac_set_dai_fmt(struct snd_soc_codec *codec,
1061 unsigned int fmt)
1062 {
1063 u16 hifi = snd_soc_read(codec, WM8753_HIFI) & 0x01e0;
1064
1065 /* interface format */
1066 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
1067 case SND_SOC_DAIFMT_I2S:
1068 hifi |= 0x0002;
1069 break;
1070 case SND_SOC_DAIFMT_RIGHT_J:
1071 break;
1072 case SND_SOC_DAIFMT_LEFT_J:
1073 hifi |= 0x0001;
1074 break;
1075 case SND_SOC_DAIFMT_DSP_A:
1076 hifi |= 0x0003;
1077 break;
1078 case SND_SOC_DAIFMT_DSP_B:
1079 hifi |= 0x0013;
1080 break;
1081 default:
1082 return -EINVAL;
1083 }
1084
1085 snd_soc_write(codec, WM8753_HIFI, hifi);
1086 return 0;
1087 }
1088
1089 /*
1090 * Set's I2S DAI format.
1091 */
wm8753_i2s_set_dai_fmt(struct snd_soc_codec * codec,unsigned int fmt)1092 static int wm8753_i2s_set_dai_fmt(struct snd_soc_codec *codec,
1093 unsigned int fmt)
1094 {
1095 u16 ioctl, hifi;
1096
1097 hifi = snd_soc_read(codec, WM8753_HIFI) & 0x011f;
1098 ioctl = snd_soc_read(codec, WM8753_IOCTL) & 0x00ae;
1099
1100 /* set master/slave audio interface */
1101 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
1102 case SND_SOC_DAIFMT_CBS_CFS:
1103 break;
1104 case SND_SOC_DAIFMT_CBM_CFM:
1105 ioctl |= 0x1;
1106 case SND_SOC_DAIFMT_CBM_CFS:
1107 hifi |= 0x0040;
1108 break;
1109 default:
1110 return -EINVAL;
1111 }
1112
1113 /* clock inversion */
1114 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
1115 case SND_SOC_DAIFMT_DSP_A:
1116 case SND_SOC_DAIFMT_DSP_B:
1117 /* frame inversion not valid for DSP modes */
1118 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
1119 case SND_SOC_DAIFMT_NB_NF:
1120 break;
1121 case SND_SOC_DAIFMT_IB_NF:
1122 hifi |= 0x0080;
1123 break;
1124 default:
1125 return -EINVAL;
1126 }
1127 break;
1128 case SND_SOC_DAIFMT_I2S:
1129 case SND_SOC_DAIFMT_RIGHT_J:
1130 case SND_SOC_DAIFMT_LEFT_J:
1131 hifi &= ~0x0010;
1132 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
1133 case SND_SOC_DAIFMT_NB_NF:
1134 break;
1135 case SND_SOC_DAIFMT_IB_IF:
1136 hifi |= 0x0090;
1137 break;
1138 case SND_SOC_DAIFMT_IB_NF:
1139 hifi |= 0x0080;
1140 break;
1141 case SND_SOC_DAIFMT_NB_IF:
1142 hifi |= 0x0010;
1143 break;
1144 default:
1145 return -EINVAL;
1146 }
1147 break;
1148 default:
1149 return -EINVAL;
1150 }
1151
1152 snd_soc_write(codec, WM8753_HIFI, hifi);
1153 snd_soc_write(codec, WM8753_IOCTL, ioctl);
1154 return 0;
1155 }
1156
1157 /*
1158 * Set PCM DAI bit size and sample rate.
1159 */
wm8753_i2s_hw_params(struct snd_pcm_substream * substream,struct snd_pcm_hw_params * params,struct snd_soc_dai * dai)1160 static int wm8753_i2s_hw_params(struct snd_pcm_substream *substream,
1161 struct snd_pcm_hw_params *params,
1162 struct snd_soc_dai *dai)
1163 {
1164 struct snd_soc_pcm_runtime *rtd = substream->private_data;
1165 struct snd_soc_codec *codec = rtd->codec;
1166 struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);
1167 u16 srate = snd_soc_read(codec, WM8753_SRATE1) & 0x01c0;
1168 u16 hifi = snd_soc_read(codec, WM8753_HIFI) & 0x01f3;
1169 int coeff;
1170
1171 /* is digital filter coefficient valid ? */
1172 coeff = get_coeff(wm8753->sysclk, params_rate(params));
1173 if (coeff < 0) {
1174 printk(KERN_ERR "wm8753 invalid MCLK or rate\n");
1175 return coeff;
1176 }
1177 snd_soc_write(codec, WM8753_SRATE1, srate | (coeff_div[coeff].sr << 1) |
1178 coeff_div[coeff].usb);
1179
1180 /* bit size */
1181 switch (params_format(params)) {
1182 case SNDRV_PCM_FORMAT_S16_LE:
1183 break;
1184 case SNDRV_PCM_FORMAT_S20_3LE:
1185 hifi |= 0x0004;
1186 break;
1187 case SNDRV_PCM_FORMAT_S24_LE:
1188 hifi |= 0x0008;
1189 break;
1190 case SNDRV_PCM_FORMAT_S32_LE:
1191 hifi |= 0x000c;
1192 break;
1193 }
1194
1195 snd_soc_write(codec, WM8753_HIFI, hifi);
1196 return 0;
1197 }
1198
wm8753_mode1v_set_dai_fmt(struct snd_soc_codec * codec,unsigned int fmt)1199 static int wm8753_mode1v_set_dai_fmt(struct snd_soc_codec *codec,
1200 unsigned int fmt)
1201 {
1202 u16 clock;
1203
1204 /* set clk source as pcmclk */
1205 clock = snd_soc_read(codec, WM8753_CLOCK) & 0xfffb;
1206 snd_soc_write(codec, WM8753_CLOCK, clock);
1207
1208 return wm8753_vdac_adc_set_dai_fmt(codec, fmt);
1209 }
1210
wm8753_mode1h_set_dai_fmt(struct snd_soc_codec * codec,unsigned int fmt)1211 static int wm8753_mode1h_set_dai_fmt(struct snd_soc_codec *codec,
1212 unsigned int fmt)
1213 {
1214 return wm8753_hdac_set_dai_fmt(codec, fmt);
1215 }
1216
wm8753_mode2_set_dai_fmt(struct snd_soc_codec * codec,unsigned int fmt)1217 static int wm8753_mode2_set_dai_fmt(struct snd_soc_codec *codec,
1218 unsigned int fmt)
1219 {
1220 u16 clock;
1221
1222 /* set clk source as pcmclk */
1223 clock = snd_soc_read(codec, WM8753_CLOCK) & 0xfffb;
1224 snd_soc_write(codec, WM8753_CLOCK, clock);
1225
1226 return wm8753_vdac_adc_set_dai_fmt(codec, fmt);
1227 }
1228
wm8753_mode3_4_set_dai_fmt(struct snd_soc_codec * codec,unsigned int fmt)1229 static int wm8753_mode3_4_set_dai_fmt(struct snd_soc_codec *codec,
1230 unsigned int fmt)
1231 {
1232 u16 clock;
1233
1234 /* set clk source as mclk */
1235 clock = snd_soc_read(codec, WM8753_CLOCK) & 0xfffb;
1236 snd_soc_write(codec, WM8753_CLOCK, clock | 0x4);
1237
1238 if (wm8753_hdac_set_dai_fmt(codec, fmt) < 0)
1239 return -EINVAL;
1240 return wm8753_vdac_adc_set_dai_fmt(codec, fmt);
1241 }
1242
wm8753_hifi_write_dai_fmt(struct snd_soc_codec * codec,unsigned int fmt)1243 static int wm8753_hifi_write_dai_fmt(struct snd_soc_codec *codec,
1244 unsigned int fmt)
1245 {
1246 struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);
1247 int ret = 0;
1248
1249 switch (wm8753->dai_func) {
1250 case 0:
1251 ret = wm8753_mode1h_set_dai_fmt(codec, fmt);
1252 break;
1253 case 1:
1254 ret = wm8753_mode2_set_dai_fmt(codec, fmt);
1255 break;
1256 case 2:
1257 case 3:
1258 ret = wm8753_mode3_4_set_dai_fmt(codec, fmt);
1259 break;
1260 default:
1261 break;
1262 }
1263 if (ret)
1264 return ret;
1265
1266 return wm8753_i2s_set_dai_fmt(codec, fmt);
1267 }
1268
wm8753_hifi_set_dai_fmt(struct snd_soc_dai * codec_dai,unsigned int fmt)1269 static int wm8753_hifi_set_dai_fmt(struct snd_soc_dai *codec_dai,
1270 unsigned int fmt)
1271 {
1272 struct snd_soc_codec *codec = codec_dai->codec;
1273 struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);
1274
1275 wm8753->hifi_fmt = fmt;
1276
1277 return wm8753_hifi_write_dai_fmt(codec, fmt);
1278 };
1279
wm8753_voice_write_dai_fmt(struct snd_soc_codec * codec,unsigned int fmt)1280 static int wm8753_voice_write_dai_fmt(struct snd_soc_codec *codec,
1281 unsigned int fmt)
1282 {
1283 struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);
1284 int ret = 0;
1285
1286 if (wm8753->dai_func != 0)
1287 return 0;
1288
1289 ret = wm8753_mode1v_set_dai_fmt(codec, fmt);
1290 if (ret)
1291 return ret;
1292 ret = wm8753_pcm_set_dai_fmt(codec, fmt);
1293 if (ret)
1294 return ret;
1295
1296 return 0;
1297 };
1298
wm8753_voice_set_dai_fmt(struct snd_soc_dai * codec_dai,unsigned int fmt)1299 static int wm8753_voice_set_dai_fmt(struct snd_soc_dai *codec_dai,
1300 unsigned int fmt)
1301 {
1302 struct snd_soc_codec *codec = codec_dai->codec;
1303 struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);
1304
1305 wm8753->voice_fmt = fmt;
1306
1307 return wm8753_voice_write_dai_fmt(codec, fmt);
1308 };
1309
wm8753_mute(struct snd_soc_dai * dai,int mute)1310 static int wm8753_mute(struct snd_soc_dai *dai, int mute)
1311 {
1312 struct snd_soc_codec *codec = dai->codec;
1313 u16 mute_reg = snd_soc_read(codec, WM8753_DAC) & 0xfff7;
1314 struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);
1315
1316 /* the digital mute covers the HiFi and Voice DAC's on the WM8753.
1317 * make sure we check if they are not both active when we mute */
1318 if (mute && wm8753->dai_func == 1) {
1319 if (!codec->active)
1320 snd_soc_write(codec, WM8753_DAC, mute_reg | 0x8);
1321 } else {
1322 if (mute)
1323 snd_soc_write(codec, WM8753_DAC, mute_reg | 0x8);
1324 else
1325 snd_soc_write(codec, WM8753_DAC, mute_reg);
1326 }
1327
1328 return 0;
1329 }
1330
wm8753_set_bias_level(struct snd_soc_codec * codec,enum snd_soc_bias_level level)1331 static int wm8753_set_bias_level(struct snd_soc_codec *codec,
1332 enum snd_soc_bias_level level)
1333 {
1334 u16 pwr_reg = snd_soc_read(codec, WM8753_PWR1) & 0xfe3e;
1335
1336 switch (level) {
1337 case SND_SOC_BIAS_ON:
1338 /* set vmid to 50k and unmute dac */
1339 snd_soc_write(codec, WM8753_PWR1, pwr_reg | 0x00c0);
1340 break;
1341 case SND_SOC_BIAS_PREPARE:
1342 /* set vmid to 5k for quick power up */
1343 snd_soc_write(codec, WM8753_PWR1, pwr_reg | 0x01c1);
1344 break;
1345 case SND_SOC_BIAS_STANDBY:
1346 /* mute dac and set vmid to 500k, enable VREF */
1347 snd_soc_write(codec, WM8753_PWR1, pwr_reg | 0x0141);
1348 break;
1349 case SND_SOC_BIAS_OFF:
1350 snd_soc_write(codec, WM8753_PWR1, 0x0001);
1351 break;
1352 }
1353 codec->dapm.bias_level = level;
1354 return 0;
1355 }
1356
1357 #define WM8753_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\
1358 SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 |\
1359 SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 |\
1360 SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000)
1361
1362 #define WM8753_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
1363 SNDRV_PCM_FMTBIT_S24_LE)
1364
1365 /*
1366 * The WM8753 supports up to 4 different and mutually exclusive DAI
1367 * configurations. This gives 2 PCM's available for use, hifi and voice.
1368 * NOTE: The Voice PCM cannot play or capture audio to the CPU as it's DAI
1369 * is connected between the wm8753 and a BT codec or GSM modem.
1370 *
1371 * 1. Voice over PCM DAI - HIFI DAC over HIFI DAI
1372 * 2. Voice over HIFI DAI - HIFI disabled
1373 * 3. Voice disabled - HIFI over HIFI
1374 * 4. Voice disabled - HIFI over HIFI, uses voice DAI LRC for capture
1375 */
1376 static const struct snd_soc_dai_ops wm8753_dai_ops_hifi_mode = {
1377 .hw_params = wm8753_i2s_hw_params,
1378 .digital_mute = wm8753_mute,
1379 .set_fmt = wm8753_hifi_set_dai_fmt,
1380 .set_clkdiv = wm8753_set_dai_clkdiv,
1381 .set_pll = wm8753_set_dai_pll,
1382 .set_sysclk = wm8753_set_dai_sysclk,
1383 };
1384
1385 static const struct snd_soc_dai_ops wm8753_dai_ops_voice_mode = {
1386 .hw_params = wm8753_pcm_hw_params,
1387 .digital_mute = wm8753_mute,
1388 .set_fmt = wm8753_voice_set_dai_fmt,
1389 .set_clkdiv = wm8753_set_dai_clkdiv,
1390 .set_pll = wm8753_set_dai_pll,
1391 .set_sysclk = wm8753_set_dai_sysclk,
1392 };
1393
1394 static struct snd_soc_dai_driver wm8753_dai[] = {
1395 /* DAI HiFi mode 1 */
1396 { .name = "wm8753-hifi",
1397 .playback = {
1398 .stream_name = "HiFi Playback",
1399 .channels_min = 1,
1400 .channels_max = 2,
1401 .rates = WM8753_RATES,
1402 .formats = WM8753_FORMATS
1403 },
1404 .capture = { /* dummy for fast DAI switching */
1405 .stream_name = "Capture",
1406 .channels_min = 1,
1407 .channels_max = 2,
1408 .rates = WM8753_RATES,
1409 .formats = WM8753_FORMATS
1410 },
1411 .ops = &wm8753_dai_ops_hifi_mode,
1412 },
1413 /* DAI Voice mode 1 */
1414 { .name = "wm8753-voice",
1415 .playback = {
1416 .stream_name = "Voice Playback",
1417 .channels_min = 1,
1418 .channels_max = 1,
1419 .rates = WM8753_RATES,
1420 .formats = WM8753_FORMATS,
1421 },
1422 .capture = {
1423 .stream_name = "Capture",
1424 .channels_min = 1,
1425 .channels_max = 2,
1426 .rates = WM8753_RATES,
1427 .formats = WM8753_FORMATS,
1428 },
1429 .ops = &wm8753_dai_ops_voice_mode,
1430 },
1431 };
1432
wm8753_work(struct work_struct * work)1433 static void wm8753_work(struct work_struct *work)
1434 {
1435 struct snd_soc_dapm_context *dapm =
1436 container_of(work, struct snd_soc_dapm_context,
1437 delayed_work.work);
1438 struct snd_soc_codec *codec = dapm->codec;
1439 wm8753_set_bias_level(codec, dapm->bias_level);
1440 }
1441
wm8753_suspend(struct snd_soc_codec * codec)1442 static int wm8753_suspend(struct snd_soc_codec *codec)
1443 {
1444 wm8753_set_bias_level(codec, SND_SOC_BIAS_OFF);
1445 codec->cache_sync = 1;
1446 return 0;
1447 }
1448
wm8753_resume(struct snd_soc_codec * codec)1449 static int wm8753_resume(struct snd_soc_codec *codec)
1450 {
1451 struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);
1452
1453 regcache_sync(wm8753->regmap);
1454
1455 wm8753_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
1456
1457 /* charge wm8753 caps */
1458 if (codec->dapm.suspend_bias_level == SND_SOC_BIAS_ON) {
1459 wm8753_set_bias_level(codec, SND_SOC_BIAS_PREPARE);
1460 codec->dapm.bias_level = SND_SOC_BIAS_ON;
1461 schedule_delayed_work(&codec->dapm.delayed_work,
1462 msecs_to_jiffies(caps_charge));
1463 }
1464
1465 return 0;
1466 }
1467
wm8753_probe(struct snd_soc_codec * codec)1468 static int wm8753_probe(struct snd_soc_codec *codec)
1469 {
1470 struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);
1471 int ret;
1472
1473 INIT_DELAYED_WORK(&codec->dapm.delayed_work, wm8753_work);
1474
1475 codec->control_data = wm8753->regmap;
1476 ret = snd_soc_codec_set_cache_io(codec, 7, 9, SND_SOC_REGMAP);
1477 if (ret < 0) {
1478 dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret);
1479 return ret;
1480 }
1481
1482 ret = wm8753_reset(codec);
1483 if (ret < 0) {
1484 dev_err(codec->dev, "Failed to issue reset: %d\n", ret);
1485 return ret;
1486 }
1487
1488 wm8753_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
1489 wm8753->dai_func = 0;
1490
1491 /* charge output caps */
1492 wm8753_set_bias_level(codec, SND_SOC_BIAS_PREPARE);
1493 schedule_delayed_work(&codec->dapm.delayed_work,
1494 msecs_to_jiffies(caps_charge));
1495
1496 /* set the update bits */
1497 snd_soc_update_bits(codec, WM8753_LDAC, 0x0100, 0x0100);
1498 snd_soc_update_bits(codec, WM8753_RDAC, 0x0100, 0x0100);
1499 snd_soc_update_bits(codec, WM8753_LADC, 0x0100, 0x0100);
1500 snd_soc_update_bits(codec, WM8753_RADC, 0x0100, 0x0100);
1501 snd_soc_update_bits(codec, WM8753_LOUT1V, 0x0100, 0x0100);
1502 snd_soc_update_bits(codec, WM8753_ROUT1V, 0x0100, 0x0100);
1503 snd_soc_update_bits(codec, WM8753_LOUT2V, 0x0100, 0x0100);
1504 snd_soc_update_bits(codec, WM8753_ROUT2V, 0x0100, 0x0100);
1505 snd_soc_update_bits(codec, WM8753_LINVOL, 0x0100, 0x0100);
1506 snd_soc_update_bits(codec, WM8753_RINVOL, 0x0100, 0x0100);
1507
1508 return 0;
1509 }
1510
1511 /* power down chip */
wm8753_remove(struct snd_soc_codec * codec)1512 static int wm8753_remove(struct snd_soc_codec *codec)
1513 {
1514 flush_delayed_work_sync(&codec->dapm.delayed_work);
1515 wm8753_set_bias_level(codec, SND_SOC_BIAS_OFF);
1516
1517 return 0;
1518 }
1519
1520 static struct snd_soc_codec_driver soc_codec_dev_wm8753 = {
1521 .probe = wm8753_probe,
1522 .remove = wm8753_remove,
1523 .suspend = wm8753_suspend,
1524 .resume = wm8753_resume,
1525 .set_bias_level = wm8753_set_bias_level,
1526
1527 .controls = wm8753_snd_controls,
1528 .num_controls = ARRAY_SIZE(wm8753_snd_controls),
1529 .dapm_widgets = wm8753_dapm_widgets,
1530 .num_dapm_widgets = ARRAY_SIZE(wm8753_dapm_widgets),
1531 .dapm_routes = wm8753_dapm_routes,
1532 .num_dapm_routes = ARRAY_SIZE(wm8753_dapm_routes),
1533 };
1534
1535 static const struct of_device_id wm8753_of_match[] = {
1536 { .compatible = "wlf,wm8753", },
1537 { }
1538 };
1539 MODULE_DEVICE_TABLE(of, wm8753_of_match);
1540
1541 static const struct regmap_config wm8753_regmap = {
1542 .reg_bits = 7,
1543 .val_bits = 9,
1544
1545 .max_register = WM8753_ADCTL2,
1546 .writeable_reg = wm8753_writeable,
1547 .volatile_reg = wm8753_volatile,
1548
1549 .cache_type = REGCACHE_RBTREE,
1550 .reg_defaults = wm8753_reg_defaults,
1551 .num_reg_defaults = ARRAY_SIZE(wm8753_reg_defaults),
1552 };
1553
1554 #if defined(CONFIG_SPI_MASTER)
wm8753_spi_probe(struct spi_device * spi)1555 static int __devinit wm8753_spi_probe(struct spi_device *spi)
1556 {
1557 struct wm8753_priv *wm8753;
1558 int ret;
1559
1560 wm8753 = devm_kzalloc(&spi->dev, sizeof(struct wm8753_priv),
1561 GFP_KERNEL);
1562 if (wm8753 == NULL)
1563 return -ENOMEM;
1564
1565 spi_set_drvdata(spi, wm8753);
1566
1567 wm8753->regmap = regmap_init_spi(spi, &wm8753_regmap);
1568 if (IS_ERR(wm8753->regmap)) {
1569 ret = PTR_ERR(wm8753->regmap);
1570 dev_err(&spi->dev, "Failed to allocate register map: %d\n",
1571 ret);
1572 goto err;
1573 }
1574
1575 ret = snd_soc_register_codec(&spi->dev, &soc_codec_dev_wm8753,
1576 wm8753_dai, ARRAY_SIZE(wm8753_dai));
1577 if (ret != 0) {
1578 dev_err(&spi->dev, "Failed to register CODEC: %d\n", ret);
1579 goto err_regmap;
1580 }
1581
1582 return 0;
1583
1584 err_regmap:
1585 regmap_exit(wm8753->regmap);
1586 err:
1587 return ret;
1588 }
1589
wm8753_spi_remove(struct spi_device * spi)1590 static int __devexit wm8753_spi_remove(struct spi_device *spi)
1591 {
1592 struct wm8753_priv *wm8753 = spi_get_drvdata(spi);
1593
1594 snd_soc_unregister_codec(&spi->dev);
1595 regmap_exit(wm8753->regmap);
1596 kfree(wm8753);
1597 return 0;
1598 }
1599
1600 static struct spi_driver wm8753_spi_driver = {
1601 .driver = {
1602 .name = "wm8753",
1603 .owner = THIS_MODULE,
1604 .of_match_table = wm8753_of_match,
1605 },
1606 .probe = wm8753_spi_probe,
1607 .remove = __devexit_p(wm8753_spi_remove),
1608 };
1609 #endif /* CONFIG_SPI_MASTER */
1610
1611 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
wm8753_i2c_probe(struct i2c_client * i2c,const struct i2c_device_id * id)1612 static __devinit int wm8753_i2c_probe(struct i2c_client *i2c,
1613 const struct i2c_device_id *id)
1614 {
1615 struct wm8753_priv *wm8753;
1616 int ret;
1617
1618 wm8753 = devm_kzalloc(&i2c->dev, sizeof(struct wm8753_priv),
1619 GFP_KERNEL);
1620 if (wm8753 == NULL)
1621 return -ENOMEM;
1622
1623 i2c_set_clientdata(i2c, wm8753);
1624
1625 wm8753->regmap = regmap_init_i2c(i2c, &wm8753_regmap);
1626 if (IS_ERR(wm8753->regmap)) {
1627 ret = PTR_ERR(wm8753->regmap);
1628 dev_err(&i2c->dev, "Failed to allocate register map: %d\n",
1629 ret);
1630 goto err;
1631 }
1632
1633 ret = snd_soc_register_codec(&i2c->dev, &soc_codec_dev_wm8753,
1634 wm8753_dai, ARRAY_SIZE(wm8753_dai));
1635 if (ret != 0) {
1636 dev_err(&i2c->dev, "Failed to register CODEC: %d\n", ret);
1637 goto err_regmap;
1638 }
1639
1640 return 0;
1641
1642 err_regmap:
1643 regmap_exit(wm8753->regmap);
1644 err:
1645 return ret;
1646 }
1647
wm8753_i2c_remove(struct i2c_client * client)1648 static __devexit int wm8753_i2c_remove(struct i2c_client *client)
1649 {
1650 struct wm8753_priv *wm8753 = i2c_get_clientdata(client);
1651
1652 snd_soc_unregister_codec(&client->dev);
1653 regmap_exit(wm8753->regmap);
1654 return 0;
1655 }
1656
1657 static const struct i2c_device_id wm8753_i2c_id[] = {
1658 { "wm8753", 0 },
1659 { }
1660 };
1661 MODULE_DEVICE_TABLE(i2c, wm8753_i2c_id);
1662
1663 static struct i2c_driver wm8753_i2c_driver = {
1664 .driver = {
1665 .name = "wm8753",
1666 .owner = THIS_MODULE,
1667 .of_match_table = wm8753_of_match,
1668 },
1669 .probe = wm8753_i2c_probe,
1670 .remove = __devexit_p(wm8753_i2c_remove),
1671 .id_table = wm8753_i2c_id,
1672 };
1673 #endif
1674
wm8753_modinit(void)1675 static int __init wm8753_modinit(void)
1676 {
1677 int ret = 0;
1678 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
1679 ret = i2c_add_driver(&wm8753_i2c_driver);
1680 if (ret != 0) {
1681 printk(KERN_ERR "Failed to register wm8753 I2C driver: %d\n",
1682 ret);
1683 }
1684 #endif
1685 #if defined(CONFIG_SPI_MASTER)
1686 ret = spi_register_driver(&wm8753_spi_driver);
1687 if (ret != 0) {
1688 printk(KERN_ERR "Failed to register wm8753 SPI driver: %d\n",
1689 ret);
1690 }
1691 #endif
1692 return ret;
1693 }
1694 module_init(wm8753_modinit);
1695
wm8753_exit(void)1696 static void __exit wm8753_exit(void)
1697 {
1698 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
1699 i2c_del_driver(&wm8753_i2c_driver);
1700 #endif
1701 #if defined(CONFIG_SPI_MASTER)
1702 spi_unregister_driver(&wm8753_spi_driver);
1703 #endif
1704 }
1705 module_exit(wm8753_exit);
1706
1707 MODULE_DESCRIPTION("ASoC WM8753 driver");
1708 MODULE_AUTHOR("Liam Girdwood");
1709 MODULE_LICENSE("GPL");
1710