2 * wm8753.c -- WM8753 ALSA Soc Audio driver
4 * Copyright 2003 Wolfson Microelectronics PLC.
5 * Author: Liam Girdwood
6 * liam.girdwood@wolfsonmicro.com or linux@wolfsonmicro.com
8 * This program is free software; you can redistribute it and/or modify it
9 * under the terms of the GNU General Public License as published by the
10 * Free Software Foundation; either version 2 of the License, or (at your
11 * option) any later version.
14 * The WM8753 is a low power, high quality stereo codec with integrated PCM
15 * codec designed for portable digital telephony applications.
19 * This driver support 2 DAI PCM's. This makes the default PCM available for
20 * HiFi audio (e.g. MP3, ogg) playback/capture and the other PCM available for
23 * Please note that the voice PCM can be connected directly to a Bluetooth
24 * codec or GSM modem and thus cannot be read or written to, although it is
25 * available to be configured with snd_hw_params(), etc and kcontrols in the
28 * Fast DAI switching:-
30 * The driver can now fast switch between the DAI configurations via a
31 * an alsa kcontrol. This allows the PCM to remain open.
35 #include <linux/module.h>
36 #include <linux/moduleparam.h>
37 #include <linux/version.h>
38 #include <linux/kernel.h>
39 #include <linux/init.h>
40 #include <linux/delay.h>
42 #include <linux/i2c.h>
43 #include <linux/platform_device.h>
44 #include <sound/core.h>
45 #include <sound/pcm.h>
46 #include <sound/pcm_params.h>
47 #include <sound/soc.h>
48 #include <sound/soc-dapm.h>
49 #include <sound/initval.h>
50 #include <sound/tlv.h>
51 #include <asm/div64.h>
55 #define AUDIO_NAME "wm8753"
56 #define WM8753_VERSION "0.16"
58 static int caps_charge
= 2000;
59 module_param(caps_charge
, int, 0);
60 MODULE_PARM_DESC(caps_charge
, "WM8753 cap charge time (msecs)");
62 static void wm8753_set_dai_mode(struct snd_soc_codec
*codec
,
65 /* codec private data */
72 * wm8753 register cache
73 * We can't read the WM8753 register space when we
74 * are using 2 wire for device control, so we cache them instead.
76 static const u16 wm8753_reg
[] = {
77 0x0008, 0x0000, 0x000a, 0x000a,
78 0x0033, 0x0000, 0x0007, 0x00ff,
79 0x00ff, 0x000f, 0x000f, 0x007b,
80 0x0000, 0x0032, 0x0000, 0x00c3,
81 0x00c3, 0x00c0, 0x0000, 0x0000,
82 0x0000, 0x0000, 0x0000, 0x0000,
83 0x0000, 0x0000, 0x0000, 0x0000,
84 0x0000, 0x0000, 0x0000, 0x0055,
85 0x0005, 0x0050, 0x0055, 0x0050,
86 0x0055, 0x0050, 0x0055, 0x0079,
87 0x0079, 0x0079, 0x0079, 0x0079,
88 0x0000, 0x0000, 0x0000, 0x0000,
89 0x0097, 0x0097, 0x0000, 0x0004,
90 0x0000, 0x0083, 0x0024, 0x01ba,
91 0x0000, 0x0083, 0x0024, 0x01ba,
96 * read wm8753 register cache
98 static inline unsigned int wm8753_read_reg_cache(struct snd_soc_codec
*codec
,
101 u16
*cache
= codec
->reg_cache
;
102 if (reg
< 1 || reg
> (ARRAY_SIZE(wm8753_reg
) + 1))
104 return cache
[reg
- 1];
108 * write wm8753 register cache
110 static inline void wm8753_write_reg_cache(struct snd_soc_codec
*codec
,
111 unsigned int reg
, unsigned int value
)
113 u16
*cache
= codec
->reg_cache
;
114 if (reg
< 1 || reg
> 0x3f)
116 cache
[reg
- 1] = value
;
120 * write to the WM8753 register space
122 static int wm8753_write(struct snd_soc_codec
*codec
, unsigned int reg
,
128 * D15..D9 WM8753 register offset
129 * D8...D0 register data
131 data
[0] = (reg
<< 1) | ((value
>> 8) & 0x0001);
132 data
[1] = value
& 0x00ff;
134 wm8753_write_reg_cache(codec
, reg
, value
);
135 if (codec
->hw_write(codec
->control_data
, data
, 2) == 2)
141 #define wm8753_reset(c) wm8753_write(c, WM8753_RESET, 0)
146 static const char *wm8753_base
[] = {"Linear Control", "Adaptive Boost"};
147 static const char *wm8753_base_filter
[] =
148 {"130Hz @ 48kHz", "200Hz @ 48kHz", "100Hz @ 16kHz", "400Hz @ 48kHz",
149 "100Hz @ 8kHz", "200Hz @ 8kHz"};
150 static const char *wm8753_treble
[] = {"8kHz", "4kHz"};
151 static const char *wm8753_alc_func
[] = {"Off", "Right", "Left", "Stereo"};
152 static const char *wm8753_ng_type
[] = {"Constant PGA Gain", "Mute ADC Output"};
153 static const char *wm8753_3d_func
[] = {"Capture", "Playback"};
154 static const char *wm8753_3d_uc
[] = {"2.2kHz", "1.5kHz"};
155 static const char *wm8753_3d_lc
[] = {"200Hz", "500Hz"};
156 static const char *wm8753_deemp
[] = {"None", "32kHz", "44.1kHz", "48kHz"};
157 static const char *wm8753_mono_mix
[] = {"Stereo", "Left", "Right", "Mono"};
158 static const char *wm8753_dac_phase
[] = {"Non Inverted", "Inverted"};
159 static const char *wm8753_line_mix
[] = {"Line 1 + 2", "Line 1 - 2",
161 static const char *wm8753_mono_mux
[] = {"Line Mix", "Rx Mix"};
162 static const char *wm8753_right_mux
[] = {"Line 2", "Rx Mix"};
163 static const char *wm8753_left_mux
[] = {"Line 1", "Rx Mix"};
164 static const char *wm8753_rxmsel
[] = {"RXP - RXN", "RXP + RXN", "RXP", "RXN"};
165 static const char *wm8753_sidetone_mux
[] = {"Left PGA", "Mic 1", "Mic 2",
167 static const char *wm8753_mono2_src
[] = {"Inverted Mono 1", "Left", "Right",
169 static const char *wm8753_out3
[] = {"VREF", "ROUT2", "Left + Right"};
170 static const char *wm8753_out4
[] = {"VREF", "Capture ST", "LOUT2"};
171 static const char *wm8753_radcsel
[] = {"PGA", "Line or RXP-RXN", "Sidetone"};
172 static const char *wm8753_ladcsel
[] = {"PGA", "Line or RXP-RXN", "Line"};
173 static const char *wm8753_mono_adc
[] = {"Stereo", "Analogue Mix Left",
174 "Analogue Mix Right", "Digital Mono Mix"};
175 static const char *wm8753_adc_hp
[] = {"3.4Hz @ 48kHz", "82Hz @ 16k",
176 "82Hz @ 8kHz", "170Hz @ 8kHz"};
177 static const char *wm8753_adc_filter
[] = {"HiFi", "Voice"};
178 static const char *wm8753_mic_sel
[] = {"Mic 1", "Mic 2", "Mic 3"};
179 static const char *wm8753_dai_mode
[] = {"DAI 0", "DAI 1", "DAI 2", "DAI 3"};
180 static const char *wm8753_dat_sel
[] = {"Stereo", "Left ADC", "Right ADC",
182 static const char *wm8753_rout2_phase
[] = {"Non Inverted", "Inverted"};
184 static const struct soc_enum wm8753_enum
[] = {
185 SOC_ENUM_SINGLE(WM8753_BASS
, 7, 2, wm8753_base
),
186 SOC_ENUM_SINGLE(WM8753_BASS
, 4, 6, wm8753_base_filter
),
187 SOC_ENUM_SINGLE(WM8753_TREBLE
, 6, 2, wm8753_treble
),
188 SOC_ENUM_SINGLE(WM8753_ALC1
, 7, 4, wm8753_alc_func
),
189 SOC_ENUM_SINGLE(WM8753_NGATE
, 1, 2, wm8753_ng_type
),
190 SOC_ENUM_SINGLE(WM8753_3D
, 7, 2, wm8753_3d_func
),
191 SOC_ENUM_SINGLE(WM8753_3D
, 6, 2, wm8753_3d_uc
),
192 SOC_ENUM_SINGLE(WM8753_3D
, 5, 2, wm8753_3d_lc
),
193 SOC_ENUM_SINGLE(WM8753_DAC
, 1, 4, wm8753_deemp
),
194 SOC_ENUM_SINGLE(WM8753_DAC
, 4, 4, wm8753_mono_mix
),
195 SOC_ENUM_SINGLE(WM8753_DAC
, 6, 2, wm8753_dac_phase
),
196 SOC_ENUM_SINGLE(WM8753_INCTL1
, 3, 4, wm8753_line_mix
),
197 SOC_ENUM_SINGLE(WM8753_INCTL1
, 2, 2, wm8753_mono_mux
),
198 SOC_ENUM_SINGLE(WM8753_INCTL1
, 1, 2, wm8753_right_mux
),
199 SOC_ENUM_SINGLE(WM8753_INCTL1
, 0, 2, wm8753_left_mux
),
200 SOC_ENUM_SINGLE(WM8753_INCTL2
, 6, 4, wm8753_rxmsel
),
201 SOC_ENUM_SINGLE(WM8753_INCTL2
, 4, 4, wm8753_sidetone_mux
),
202 SOC_ENUM_SINGLE(WM8753_OUTCTL
, 7, 4, wm8753_mono2_src
),
203 SOC_ENUM_SINGLE(WM8753_OUTCTL
, 0, 3, wm8753_out3
),
204 SOC_ENUM_SINGLE(WM8753_ADCTL2
, 7, 3, wm8753_out4
),
205 SOC_ENUM_SINGLE(WM8753_ADCIN
, 2, 3, wm8753_radcsel
),
206 SOC_ENUM_SINGLE(WM8753_ADCIN
, 0, 3, wm8753_ladcsel
),
207 SOC_ENUM_SINGLE(WM8753_ADCIN
, 4, 4, wm8753_mono_adc
),
208 SOC_ENUM_SINGLE(WM8753_ADC
, 2, 4, wm8753_adc_hp
),
209 SOC_ENUM_SINGLE(WM8753_ADC
, 4, 2, wm8753_adc_filter
),
210 SOC_ENUM_SINGLE(WM8753_MICBIAS
, 6, 3, wm8753_mic_sel
),
211 SOC_ENUM_SINGLE(WM8753_IOCTL
, 2, 4, wm8753_dai_mode
),
212 SOC_ENUM_SINGLE(WM8753_ADC
, 7, 4, wm8753_dat_sel
),
213 SOC_ENUM_SINGLE(WM8753_OUTCTL
, 2, 2, wm8753_rout2_phase
),
217 static int wm8753_get_dai(struct snd_kcontrol
*kcontrol
,
218 struct snd_ctl_elem_value
*ucontrol
)
220 struct snd_soc_codec
*codec
= snd_kcontrol_chip(kcontrol
);
221 int mode
= wm8753_read_reg_cache(codec
, WM8753_IOCTL
);
223 ucontrol
->value
.integer
.value
[0] = (mode
& 0xc) >> 2;
227 static int wm8753_set_dai(struct snd_kcontrol
*kcontrol
,
228 struct snd_ctl_elem_value
*ucontrol
)
230 struct snd_soc_codec
*codec
= snd_kcontrol_chip(kcontrol
);
231 int mode
= wm8753_read_reg_cache(codec
, WM8753_IOCTL
);
233 if (((mode
& 0xc) >> 2) == ucontrol
->value
.integer
.value
[0])
237 mode
|= (ucontrol
->value
.integer
.value
[0] << 2);
239 wm8753_write(codec
, WM8753_IOCTL
, mode
);
240 wm8753_set_dai_mode(codec
, ucontrol
->value
.integer
.value
[0]);
244 static const DECLARE_TLV_DB_SCALE(rec_mix_tlv
, -1500, 300, 0);
245 static const DECLARE_TLV_DB_SCALE(mic_preamp_tlv
, 1200, 600, 0);
246 static const DECLARE_TLV_DB_SCALE(adc_tlv
, -9750, 50, 1);
247 static const DECLARE_TLV_DB_SCALE(dac_tlv
, -12750, 50, 1);
248 static const unsigned int out_tlv
[] = {
249 TLV_DB_RANGE_HEAD(2),
250 /* 0000000 - 0101111 = "Analogue mute" */
251 0, 48, TLV_DB_SCALE_ITEM(-25500, 0, 0),
252 48, 127, TLV_DB_SCALE_ITEM(-7300, 100, 0),
254 static const DECLARE_TLV_DB_SCALE(mix_tlv
, -1500, 300, 0);
255 static const DECLARE_TLV_DB_SCALE(voice_mix_tlv
, -1200, 300, 0);
256 static const DECLARE_TLV_DB_SCALE(pga_tlv
, -1725, 75, 0);
258 static const struct snd_kcontrol_new wm8753_snd_controls
[] = {
259 SOC_DOUBLE_R_TLV("PCM Volume", WM8753_LDAC
, WM8753_RDAC
, 0, 255, 0, dac_tlv
),
261 SOC_DOUBLE_R_TLV("ADC Capture Volume", WM8753_LADC
, WM8753_RADC
, 0, 255, 0,
264 SOC_DOUBLE_R_TLV("Headphone Playback Volume", WM8753_LOUT1V
, WM8753_ROUT1V
,
266 SOC_DOUBLE_R_TLV("Speaker Playback Volume", WM8753_LOUT2V
, WM8753_ROUT2V
, 0,
269 SOC_SINGLE_TLV("Mono Playback Volume", WM8753_MOUTV
, 0, 127, 0, out_tlv
),
271 SOC_DOUBLE_R_TLV("Bypass Playback Volume", WM8753_LOUTM1
, WM8753_ROUTM1
, 4, 7,
273 SOC_DOUBLE_R_TLV("Sidetone Playback Volume", WM8753_LOUTM2
, WM8753_ROUTM2
, 4,
275 SOC_DOUBLE_R_TLV("Voice Playback Volume", WM8753_LOUTM2
, WM8753_ROUTM2
, 0, 7,
278 SOC_DOUBLE_R("Headphone Playback ZC Switch", WM8753_LOUT1V
, WM8753_ROUT1V
, 7,
280 SOC_DOUBLE_R("Speaker Playback ZC Switch", WM8753_LOUT2V
, WM8753_ROUT2V
, 7,
283 SOC_SINGLE_TLV("Mono Bypass Playback Volume", WM8753_MOUTM1
, 4, 7, 1, mix_tlv
),
284 SOC_SINGLE_TLV("Mono Sidetone Playback Volume", WM8753_MOUTM2
, 4, 7, 1,
286 SOC_SINGLE_TLV("Mono Voice Playback Volume", WM8753_MOUTM2
, 0, 7, 1,
288 SOC_SINGLE("Mono Playback ZC Switch", WM8753_MOUTV
, 7, 1, 0),
290 SOC_ENUM("Bass Boost", wm8753_enum
[0]),
291 SOC_ENUM("Bass Filter", wm8753_enum
[1]),
292 SOC_SINGLE("Bass Volume", WM8753_BASS
, 0, 15, 1),
294 SOC_SINGLE("Treble Volume", WM8753_TREBLE
, 0, 15, 1),
295 SOC_ENUM("Treble Cut-off", wm8753_enum
[2]),
297 SOC_DOUBLE_TLV("Sidetone Capture Volume", WM8753_RECMIX1
, 0, 4, 7, 1,
299 SOC_SINGLE_TLV("Voice Sidetone Capture Volume", WM8753_RECMIX2
, 0, 7, 1,
302 SOC_DOUBLE_R_TLV("Capture Volume", WM8753_LINVOL
, WM8753_RINVOL
, 0, 63, 0,
304 SOC_DOUBLE_R("Capture ZC Switch", WM8753_LINVOL
, WM8753_RINVOL
, 6, 1, 0),
305 SOC_DOUBLE_R("Capture Switch", WM8753_LINVOL
, WM8753_RINVOL
, 7, 1, 1),
307 SOC_ENUM("Capture Filter Select", wm8753_enum
[23]),
308 SOC_ENUM("Capture Filter Cut-off", wm8753_enum
[24]),
309 SOC_SINGLE("Capture Filter Switch", WM8753_ADC
, 0, 1, 1),
311 SOC_SINGLE("ALC Capture Target Volume", WM8753_ALC1
, 0, 7, 0),
312 SOC_SINGLE("ALC Capture Max Volume", WM8753_ALC1
, 4, 7, 0),
313 SOC_ENUM("ALC Capture Function", wm8753_enum
[3]),
314 SOC_SINGLE("ALC Capture ZC Switch", WM8753_ALC2
, 8, 1, 0),
315 SOC_SINGLE("ALC Capture Hold Time", WM8753_ALC2
, 0, 15, 1),
316 SOC_SINGLE("ALC Capture Decay Time", WM8753_ALC3
, 4, 15, 1),
317 SOC_SINGLE("ALC Capture Attack Time", WM8753_ALC3
, 0, 15, 0),
318 SOC_SINGLE("ALC Capture NG Threshold", WM8753_NGATE
, 3, 31, 0),
319 SOC_ENUM("ALC Capture NG Type", wm8753_enum
[4]),
320 SOC_SINGLE("ALC Capture NG Switch", WM8753_NGATE
, 0, 1, 0),
322 SOC_ENUM("3D Function", wm8753_enum
[5]),
323 SOC_ENUM("3D Upper Cut-off", wm8753_enum
[6]),
324 SOC_ENUM("3D Lower Cut-off", wm8753_enum
[7]),
325 SOC_SINGLE("3D Volume", WM8753_3D
, 1, 15, 0),
326 SOC_SINGLE("3D Switch", WM8753_3D
, 0, 1, 0),
328 SOC_SINGLE("Capture 6dB Attenuate", WM8753_ADCTL1
, 2, 1, 0),
329 SOC_SINGLE("Playback 6dB Attenuate", WM8753_ADCTL1
, 1, 1, 0),
331 SOC_ENUM("De-emphasis", wm8753_enum
[8]),
332 SOC_ENUM("Playback Mono Mix", wm8753_enum
[9]),
333 SOC_ENUM("Playback Phase", wm8753_enum
[10]),
335 SOC_SINGLE_TLV("Mic2 Capture Volume", WM8753_INCTL1
, 7, 3, 0, mic_preamp_tlv
),
336 SOC_SINGLE_TLV("Mic1 Capture Volume", WM8753_INCTL1
, 5, 3, 0, mic_preamp_tlv
),
338 SOC_ENUM_EXT("DAI Mode", wm8753_enum
[26], wm8753_get_dai
, wm8753_set_dai
),
340 SOC_ENUM("ADC Data Select", wm8753_enum
[27]),
341 SOC_ENUM("ROUT2 Phase", wm8753_enum
[28]),
344 /* add non dapm controls */
345 static int wm8753_add_controls(struct snd_soc_codec
*codec
)
349 for (i
= 0; i
< ARRAY_SIZE(wm8753_snd_controls
); i
++) {
350 err
= snd_ctl_add(codec
->card
,
351 snd_soc_cnew(&wm8753_snd_controls
[i
],
364 static const struct snd_kcontrol_new wm8753_left_mixer_controls
[] = {
365 SOC_DAPM_SINGLE("Voice Playback Switch", WM8753_LOUTM2
, 8, 1, 0),
366 SOC_DAPM_SINGLE("Sidetone Playback Switch", WM8753_LOUTM2
, 7, 1, 0),
367 SOC_DAPM_SINGLE("Left Playback Switch", WM8753_LOUTM1
, 8, 1, 0),
368 SOC_DAPM_SINGLE("Bypass Playback Switch", WM8753_LOUTM1
, 7, 1, 0),
372 static const struct snd_kcontrol_new wm8753_right_mixer_controls
[] = {
373 SOC_DAPM_SINGLE("Voice Playback Switch", WM8753_ROUTM2
, 8, 1, 0),
374 SOC_DAPM_SINGLE("Sidetone Playback Switch", WM8753_ROUTM2
, 7, 1, 0),
375 SOC_DAPM_SINGLE("Right Playback Switch", WM8753_ROUTM1
, 8, 1, 0),
376 SOC_DAPM_SINGLE("Bypass Playback Switch", WM8753_ROUTM1
, 7, 1, 0),
380 static const struct snd_kcontrol_new wm8753_mono_mixer_controls
[] = {
381 SOC_DAPM_SINGLE("Left Playback Switch", WM8753_MOUTM1
, 8, 1, 0),
382 SOC_DAPM_SINGLE("Right Playback Switch", WM8753_MOUTM2
, 8, 1, 0),
383 SOC_DAPM_SINGLE("Voice Playback Switch", WM8753_MOUTM2
, 3, 1, 0),
384 SOC_DAPM_SINGLE("Sidetone Playback Switch", WM8753_MOUTM2
, 7, 1, 0),
385 SOC_DAPM_SINGLE("Bypass Playback Switch", WM8753_MOUTM1
, 7, 1, 0),
389 static const struct snd_kcontrol_new wm8753_mono2_controls
=
390 SOC_DAPM_ENUM("Route", wm8753_enum
[17]);
393 static const struct snd_kcontrol_new wm8753_out3_controls
=
394 SOC_DAPM_ENUM("Route", wm8753_enum
[18]);
397 static const struct snd_kcontrol_new wm8753_out4_controls
=
398 SOC_DAPM_ENUM("Route", wm8753_enum
[19]);
401 static const struct snd_kcontrol_new wm8753_adc_mono_controls
=
402 SOC_DAPM_ENUM("Route", wm8753_enum
[22]);
405 static const struct snd_kcontrol_new wm8753_record_mixer_controls
[] = {
406 SOC_DAPM_SINGLE("Voice Capture Switch", WM8753_RECMIX2
, 3, 1, 0),
407 SOC_DAPM_SINGLE("Left Capture Switch", WM8753_RECMIX1
, 3, 1, 0),
408 SOC_DAPM_SINGLE("Right Capture Switch", WM8753_RECMIX1
, 7, 1, 0),
412 static const struct snd_kcontrol_new wm8753_adc_left_controls
=
413 SOC_DAPM_ENUM("Route", wm8753_enum
[21]);
416 static const struct snd_kcontrol_new wm8753_adc_right_controls
=
417 SOC_DAPM_ENUM("Route", wm8753_enum
[20]);
420 static const struct snd_kcontrol_new wm8753_mic_mux_controls
=
421 SOC_DAPM_ENUM("Route", wm8753_enum
[16]);
424 static const struct snd_kcontrol_new wm8753_alc_mixer_controls
[] = {
425 SOC_DAPM_SINGLE("Line Capture Switch", WM8753_INCTL2
, 3, 1, 0),
426 SOC_DAPM_SINGLE("Mic2 Capture Switch", WM8753_INCTL2
, 2, 1, 0),
427 SOC_DAPM_SINGLE("Mic1 Capture Switch", WM8753_INCTL2
, 1, 1, 0),
428 SOC_DAPM_SINGLE("Rx Capture Switch", WM8753_INCTL2
, 0, 1, 0),
432 static const struct snd_kcontrol_new wm8753_line_left_controls
=
433 SOC_DAPM_ENUM("Route", wm8753_enum
[14]);
436 static const struct snd_kcontrol_new wm8753_line_right_controls
=
437 SOC_DAPM_ENUM("Route", wm8753_enum
[13]);
440 static const struct snd_kcontrol_new wm8753_line_mono_controls
=
441 SOC_DAPM_ENUM("Route", wm8753_enum
[12]);
443 /* Line mux and mixer */
444 static const struct snd_kcontrol_new wm8753_line_mux_mix_controls
=
445 SOC_DAPM_ENUM("Route", wm8753_enum
[11]);
447 /* Rx mux and mixer */
448 static const struct snd_kcontrol_new wm8753_rx_mux_mix_controls
=
449 SOC_DAPM_ENUM("Route", wm8753_enum
[15]);
451 /* Mic Selector Mux */
452 static const struct snd_kcontrol_new wm8753_mic_sel_mux_controls
=
453 SOC_DAPM_ENUM("Route", wm8753_enum
[25]);
455 static const struct snd_soc_dapm_widget wm8753_dapm_widgets
[] = {
456 SND_SOC_DAPM_MICBIAS("Mic Bias", WM8753_PWR1
, 5, 0),
457 SND_SOC_DAPM_MIXER("Left Mixer", WM8753_PWR4
, 0, 0,
458 &wm8753_left_mixer_controls
[0], ARRAY_SIZE(wm8753_left_mixer_controls
)),
459 SND_SOC_DAPM_PGA("Left Out 1", WM8753_PWR3
, 8, 0, NULL
, 0),
460 SND_SOC_DAPM_PGA("Left Out 2", WM8753_PWR3
, 6, 0, NULL
, 0),
461 SND_SOC_DAPM_DAC("Left DAC", "Left HiFi Playback", WM8753_PWR1
, 3, 0),
462 SND_SOC_DAPM_OUTPUT("LOUT1"),
463 SND_SOC_DAPM_OUTPUT("LOUT2"),
464 SND_SOC_DAPM_MIXER("Right Mixer", WM8753_PWR4
, 1, 0,
465 &wm8753_right_mixer_controls
[0], ARRAY_SIZE(wm8753_right_mixer_controls
)),
466 SND_SOC_DAPM_PGA("Right Out 1", WM8753_PWR3
, 7, 0, NULL
, 0),
467 SND_SOC_DAPM_PGA("Right Out 2", WM8753_PWR3
, 5, 0, NULL
, 0),
468 SND_SOC_DAPM_DAC("Right DAC", "Right HiFi Playback", WM8753_PWR1
, 2, 0),
469 SND_SOC_DAPM_OUTPUT("ROUT1"),
470 SND_SOC_DAPM_OUTPUT("ROUT2"),
471 SND_SOC_DAPM_MIXER("Mono Mixer", WM8753_PWR4
, 2, 0,
472 &wm8753_mono_mixer_controls
[0], ARRAY_SIZE(wm8753_mono_mixer_controls
)),
473 SND_SOC_DAPM_PGA("Mono Out 1", WM8753_PWR3
, 2, 0, NULL
, 0),
474 SND_SOC_DAPM_PGA("Mono Out 2", WM8753_PWR3
, 1, 0, NULL
, 0),
475 SND_SOC_DAPM_DAC("Voice DAC", "Voice Playback", WM8753_PWR1
, 4, 0),
476 SND_SOC_DAPM_OUTPUT("MONO1"),
477 SND_SOC_DAPM_MUX("Mono 2 Mux", SND_SOC_NOPM
, 0, 0, &wm8753_mono2_controls
),
478 SND_SOC_DAPM_OUTPUT("MONO2"),
479 SND_SOC_DAPM_MIXER("Out3 Left + Right", -1, 0, 0, NULL
, 0),
480 SND_SOC_DAPM_MUX("Out3 Mux", SND_SOC_NOPM
, 0, 0, &wm8753_out3_controls
),
481 SND_SOC_DAPM_PGA("Out 3", WM8753_PWR3
, 4, 0, NULL
, 0),
482 SND_SOC_DAPM_OUTPUT("OUT3"),
483 SND_SOC_DAPM_MUX("Out4 Mux", SND_SOC_NOPM
, 0, 0, &wm8753_out4_controls
),
484 SND_SOC_DAPM_PGA("Out 4", WM8753_PWR3
, 3, 0, NULL
, 0),
485 SND_SOC_DAPM_OUTPUT("OUT4"),
486 SND_SOC_DAPM_MIXER("Playback Mixer", WM8753_PWR4
, 3, 0,
487 &wm8753_record_mixer_controls
[0],
488 ARRAY_SIZE(wm8753_record_mixer_controls
)),
489 SND_SOC_DAPM_ADC("Left ADC", "Left Capture", WM8753_PWR2
, 3, 0),
490 SND_SOC_DAPM_ADC("Right ADC", "Right Capture", WM8753_PWR2
, 2, 0),
491 SND_SOC_DAPM_MUX("Capture Left Mixer", SND_SOC_NOPM
, 0, 0,
492 &wm8753_adc_mono_controls
),
493 SND_SOC_DAPM_MUX("Capture Right Mixer", SND_SOC_NOPM
, 0, 0,
494 &wm8753_adc_mono_controls
),
495 SND_SOC_DAPM_MUX("Capture Left Mux", SND_SOC_NOPM
, 0, 0,
496 &wm8753_adc_left_controls
),
497 SND_SOC_DAPM_MUX("Capture Right Mux", SND_SOC_NOPM
, 0, 0,
498 &wm8753_adc_right_controls
),
499 SND_SOC_DAPM_MUX("Mic Sidetone Mux", SND_SOC_NOPM
, 0, 0,
500 &wm8753_mic_mux_controls
),
501 SND_SOC_DAPM_PGA("Left Capture Volume", WM8753_PWR2
, 5, 0, NULL
, 0),
502 SND_SOC_DAPM_PGA("Right Capture Volume", WM8753_PWR2
, 4, 0, NULL
, 0),
503 SND_SOC_DAPM_MIXER("ALC Mixer", WM8753_PWR2
, 6, 0,
504 &wm8753_alc_mixer_controls
[0], ARRAY_SIZE(wm8753_alc_mixer_controls
)),
505 SND_SOC_DAPM_MUX("Line Left Mux", SND_SOC_NOPM
, 0, 0,
506 &wm8753_line_left_controls
),
507 SND_SOC_DAPM_MUX("Line Right Mux", SND_SOC_NOPM
, 0, 0,
508 &wm8753_line_right_controls
),
509 SND_SOC_DAPM_MUX("Line Mono Mux", SND_SOC_NOPM
, 0, 0,
510 &wm8753_line_mono_controls
),
511 SND_SOC_DAPM_MUX("Line Mixer", WM8753_PWR2
, 0, 0,
512 &wm8753_line_mux_mix_controls
),
513 SND_SOC_DAPM_MUX("Rx Mixer", WM8753_PWR2
, 1, 0,
514 &wm8753_rx_mux_mix_controls
),
515 SND_SOC_DAPM_PGA("Mic 1 Volume", WM8753_PWR2
, 8, 0, NULL
, 0),
516 SND_SOC_DAPM_PGA("Mic 2 Volume", WM8753_PWR2
, 7, 0, NULL
, 0),
517 SND_SOC_DAPM_MUX("Mic Selection Mux", SND_SOC_NOPM
, 0, 0,
518 &wm8753_mic_sel_mux_controls
),
519 SND_SOC_DAPM_INPUT("LINE1"),
520 SND_SOC_DAPM_INPUT("LINE2"),
521 SND_SOC_DAPM_INPUT("RXP"),
522 SND_SOC_DAPM_INPUT("RXN"),
523 SND_SOC_DAPM_INPUT("ACIN"),
524 SND_SOC_DAPM_OUTPUT("ACOP"),
525 SND_SOC_DAPM_INPUT("MIC1N"),
526 SND_SOC_DAPM_INPUT("MIC1"),
527 SND_SOC_DAPM_INPUT("MIC2N"),
528 SND_SOC_DAPM_INPUT("MIC2"),
529 SND_SOC_DAPM_VMID("VREF"),
532 static const struct snd_soc_dapm_route audio_map
[] = {
534 {"Left Mixer", "Left Playback Switch", "Left DAC"},
535 {"Left Mixer", "Voice Playback Switch", "Voice DAC"},
536 {"Left Mixer", "Sidetone Playback Switch", "Mic Sidetone Mux"},
537 {"Left Mixer", "Bypass Playback Switch", "Line Left Mux"},
540 {"Right Mixer", "Right Playback Switch", "Right DAC"},
541 {"Right Mixer", "Voice Playback Switch", "Voice DAC"},
542 {"Right Mixer", "Sidetone Playback Switch", "Mic Sidetone Mux"},
543 {"Right Mixer", "Bypass Playback Switch", "Line Right Mux"},
546 {"Mono Mixer", "Voice Playback Switch", "Voice DAC"},
547 {"Mono Mixer", "Left Playback Switch", "Left DAC"},
548 {"Mono Mixer", "Right Playback Switch", "Right DAC"},
549 {"Mono Mixer", "Sidetone Playback Switch", "Mic Sidetone Mux"},
550 {"Mono Mixer", "Bypass Playback Switch", "Line Mono Mux"},
553 {"Left Out 1", NULL
, "Left Mixer"},
554 {"Left Out 2", NULL
, "Left Mixer"},
555 {"LOUT1", NULL
, "Left Out 1"},
556 {"LOUT2", NULL
, "Left Out 2"},
559 {"Right Out 1", NULL
, "Right Mixer"},
560 {"Right Out 2", NULL
, "Right Mixer"},
561 {"ROUT1", NULL
, "Right Out 1"},
562 {"ROUT2", NULL
, "Right Out 2"},
565 {"Mono Out 1", NULL
, "Mono Mixer"},
566 {"MONO1", NULL
, "Mono Out 1"},
569 {"Mono 2 Mux", "Left + Right", "Out3 Left + Right"},
570 {"Mono 2 Mux", "Inverted Mono 1", "MONO1"},
571 {"Mono 2 Mux", "Left", "Left Mixer"},
572 {"Mono 2 Mux", "Right", "Right Mixer"},
573 {"Mono Out 2", NULL
, "Mono 2 Mux"},
574 {"MONO2", NULL
, "Mono Out 2"},
577 {"Out3 Left + Right", NULL
, "Left Mixer"},
578 {"Out3 Left + Right", NULL
, "Right Mixer"},
579 {"Out3 Mux", "VREF", "VREF"},
580 {"Out3 Mux", "Left + Right", "Out3 Left + Right"},
581 {"Out3 Mux", "ROUT2", "ROUT2"},
582 {"Out 3", NULL
, "Out3 Mux"},
583 {"OUT3", NULL
, "Out 3"},
586 {"Out4 Mux", "VREF", "VREF"},
587 {"Out4 Mux", "Capture ST", "Capture ST Mixer"},
588 {"Out4 Mux", "LOUT2", "LOUT2"},
589 {"Out 4", NULL
, "Out4 Mux"},
590 {"OUT4", NULL
, "Out 4"},
593 {"Playback Mixer", "Left Capture Switch", "Left Mixer"},
594 {"Playback Mixer", "Voice Capture Switch", "Mono Mixer"},
595 {"Playback Mixer", "Right Capture Switch", "Right Mixer"},
597 /* Mic/SideTone Mux */
598 {"Mic Sidetone Mux", "Left PGA", "Left Capture Volume"},
599 {"Mic Sidetone Mux", "Right PGA", "Right Capture Volume"},
600 {"Mic Sidetone Mux", "Mic 1", "Mic 1 Volume"},
601 {"Mic Sidetone Mux", "Mic 2", "Mic 2 Volume"},
603 /* Capture Left Mux */
604 {"Capture Left Mux", "PGA", "Left Capture Volume"},
605 {"Capture Left Mux", "Line or RXP-RXN", "Line Left Mux"},
606 {"Capture Left Mux", "Line", "LINE1"},
608 /* Capture Right Mux */
609 {"Capture Right Mux", "PGA", "Right Capture Volume"},
610 {"Capture Right Mux", "Line or RXP-RXN", "Line Right Mux"},
611 {"Capture Right Mux", "Sidetone", "Capture ST Mixer"},
613 /* Mono Capture mixer-mux */
614 {"Capture Right Mixer", "Stereo", "Capture Right Mux"},
615 {"Capture Left Mixer", "Analogue Mix Left", "Capture Left Mux"},
616 {"Capture Left Mixer", "Analogue Mix Left", "Capture Right Mux"},
617 {"Capture Right Mixer", "Analogue Mix Right", "Capture Left Mux"},
618 {"Capture Right Mixer", "Analogue Mix Right", "Capture Right Mux"},
619 {"Capture Left Mixer", "Digital Mono Mix", "Capture Left Mux"},
620 {"Capture Left Mixer", "Digital Mono Mix", "Capture Right Mux"},
621 {"Capture Right Mixer", "Digital Mono Mix", "Capture Left Mux"},
622 {"Capture Right Mixer", "Digital Mono Mix", "Capture Right Mux"},
625 {"Left ADC", NULL
, "Capture Left Mixer"},
626 {"Right ADC", NULL
, "Capture Right Mixer"},
628 /* Left Capture Volume */
629 {"Left Capture Volume", NULL
, "ACIN"},
631 /* Right Capture Volume */
632 {"Right Capture Volume", NULL
, "Mic 2 Volume"},
635 {"ALC Mixer", "Line Capture Switch", "Line Mixer"},
636 {"ALC Mixer", "Mic2 Capture Switch", "Mic 2 Volume"},
637 {"ALC Mixer", "Mic1 Capture Switch", "Mic 1 Volume"},
638 {"ALC Mixer", "Rx Capture Switch", "Rx Mixer"},
641 {"Line Left Mux", "Line 1", "LINE1"},
642 {"Line Left Mux", "Rx Mix", "Rx Mixer"},
645 {"Line Right Mux", "Line 2", "LINE2"},
646 {"Line Right Mux", "Rx Mix", "Rx Mixer"},
649 {"Line Mono Mux", "Line Mix", "Line Mixer"},
650 {"Line Mono Mux", "Rx Mix", "Rx Mixer"},
653 {"Line Mixer", "Line 1 + 2", "LINE1"},
654 {"Line Mixer", "Line 1 - 2", "LINE1"},
655 {"Line Mixer", "Line 1 + 2", "LINE2"},
656 {"Line Mixer", "Line 1 - 2", "LINE2"},
657 {"Line Mixer", "Line 1", "LINE1"},
658 {"Line Mixer", "Line 2", "LINE2"},
661 {"Rx Mixer", "RXP - RXN", "RXP"},
662 {"Rx Mixer", "RXP + RXN", "RXP"},
663 {"Rx Mixer", "RXP - RXN", "RXN"},
664 {"Rx Mixer", "RXP + RXN", "RXN"},
665 {"Rx Mixer", "RXP", "RXP"},
666 {"Rx Mixer", "RXN", "RXN"},
669 {"Mic 1 Volume", NULL
, "MIC1N"},
670 {"Mic 1 Volume", NULL
, "Mic Selection Mux"},
673 {"Mic 2 Volume", NULL
, "MIC2N"},
674 {"Mic 2 Volume", NULL
, "MIC2"},
676 /* Mic Selector Mux */
677 {"Mic Selection Mux", "Mic 1", "MIC1"},
678 {"Mic Selection Mux", "Mic 2", "MIC2N"},
679 {"Mic Selection Mux", "Mic 3", "MIC2"},
682 {"ACOP", NULL
, "ALC Mixer"},
685 static int wm8753_add_widgets(struct snd_soc_codec
*codec
)
687 snd_soc_dapm_new_controls(codec
, wm8753_dapm_widgets
,
688 ARRAY_SIZE(wm8753_dapm_widgets
));
690 snd_soc_dapm_add_routes(codec
, audio_map
, ARRAY_SIZE(audio_map
));
692 snd_soc_dapm_new_widgets(codec
);
703 /* The size in bits of the pll divide multiplied by 10
704 * to allow rounding later */
705 #define FIXED_PLL_SIZE ((1 << 22) * 10)
707 static void pll_factors(struct _pll_div
*pll_div
, unsigned int target
,
711 unsigned int K
, Ndiv
, Nmod
;
713 Ndiv
= target
/ source
;
717 Ndiv
= target
/ source
;
721 if ((Ndiv
< 6) || (Ndiv
> 12))
723 "wm8753: unsupported N = %d\n", Ndiv
);
726 Nmod
= target
% source
;
727 Kpart
= FIXED_PLL_SIZE
* (long long)Nmod
;
729 do_div(Kpart
, source
);
731 K
= Kpart
& 0xFFFFFFFF;
733 /* Check if we need to round */
737 /* Move down to proper range now rounding is done */
743 static int wm8753_set_dai_pll(struct snd_soc_dai
*codec_dai
,
744 int pll_id
, unsigned int freq_in
, unsigned int freq_out
)
748 struct snd_soc_codec
*codec
= codec_dai
->codec
;
750 if (pll_id
< WM8753_PLL1
|| pll_id
> WM8753_PLL2
)
753 if (pll_id
== WM8753_PLL1
) {
756 reg
= wm8753_read_reg_cache(codec
, WM8753_CLOCK
) & 0xffef;
760 reg
= wm8753_read_reg_cache(codec
, WM8753_CLOCK
) & 0xfff7;
763 if (!freq_in
|| !freq_out
) {
765 wm8753_write(codec
, WM8753_PLL1CTL1
+ offset
, 0x0026);
766 wm8753_write(codec
, WM8753_CLOCK
, reg
);
770 struct _pll_div pll_div
;
772 pll_factors(&pll_div
, freq_out
* 8, freq_in
);
774 /* set up N and K PLL divisor ratios */
775 /* bits 8:5 = PLL_N, bits 3:0 = PLL_K[21:18] */
776 value
= (pll_div
.n
<< 5) + ((pll_div
.k
& 0x3c0000) >> 18);
777 wm8753_write(codec
, WM8753_PLL1CTL2
+ offset
, value
);
779 /* bits 8:0 = PLL_K[17:9] */
780 value
= (pll_div
.k
& 0x03fe00) >> 9;
781 wm8753_write(codec
, WM8753_PLL1CTL3
+ offset
, value
);
783 /* bits 8:0 = PLL_K[8:0] */
784 value
= pll_div
.k
& 0x0001ff;
785 wm8753_write(codec
, WM8753_PLL1CTL4
+ offset
, value
);
787 /* set PLL as input and enable */
788 wm8753_write(codec
, WM8753_PLL1CTL1
+ offset
, 0x0027 |
789 (pll_div
.div2
<< 3));
790 wm8753_write(codec
, WM8753_CLOCK
, reg
| enable
);
802 /* codec hifi mclk (after PLL) clock divider coefficients */
803 static const struct _coeff_div coeff_div
[] = {
805 {12288000, 8000, 0x6, 0x0},
806 {11289600, 8000, 0x16, 0x0},
807 {18432000, 8000, 0x7, 0x0},
808 {16934400, 8000, 0x17, 0x0},
809 {12000000, 8000, 0x6, 0x1},
812 {11289600, 11025, 0x18, 0x0},
813 {16934400, 11025, 0x19, 0x0},
814 {12000000, 11025, 0x19, 0x1},
817 {12288000, 16000, 0xa, 0x0},
818 {18432000, 16000, 0xb, 0x0},
819 {12000000, 16000, 0xa, 0x1},
822 {11289600, 22050, 0x1a, 0x0},
823 {16934400, 22050, 0x1b, 0x0},
824 {12000000, 22050, 0x1b, 0x1},
827 {12288000, 32000, 0xc, 0x0},
828 {18432000, 32000, 0xd, 0x0},
829 {12000000, 32000, 0xa, 0x1},
832 {11289600, 44100, 0x10, 0x0},
833 {16934400, 44100, 0x11, 0x0},
834 {12000000, 44100, 0x11, 0x1},
837 {12288000, 48000, 0x0, 0x0},
838 {18432000, 48000, 0x1, 0x0},
839 {12000000, 48000, 0x0, 0x1},
842 {11289600, 88200, 0x1e, 0x0},
843 {16934400, 88200, 0x1f, 0x0},
844 {12000000, 88200, 0x1f, 0x1},
847 {12288000, 96000, 0xe, 0x0},
848 {18432000, 96000, 0xf, 0x0},
849 {12000000, 96000, 0xe, 0x1},
852 static int get_coeff(int mclk
, int rate
)
856 for (i
= 0; i
< ARRAY_SIZE(coeff_div
); i
++) {
857 if (coeff_div
[i
].rate
== rate
&& coeff_div
[i
].mclk
== mclk
)
864 * Clock after PLL and dividers
866 static int wm8753_set_dai_sysclk(struct snd_soc_dai
*codec_dai
,
867 int clk_id
, unsigned int freq
, int dir
)
869 struct snd_soc_codec
*codec
= codec_dai
->codec
;
870 struct wm8753_priv
*wm8753
= codec
->private_data
;
878 if (clk_id
== WM8753_MCLK
) {
879 wm8753
->sysclk
= freq
;
881 } else if (clk_id
== WM8753_PCMCLK
) {
882 wm8753
->pcmclk
= freq
;
891 * Set's ADC and Voice DAC format.
893 static int wm8753_vdac_adc_set_dai_fmt(struct snd_soc_dai
*codec_dai
,
896 struct snd_soc_codec
*codec
= codec_dai
->codec
;
897 u16 voice
= wm8753_read_reg_cache(codec
, WM8753_PCM
) & 0x01ec;
899 /* interface format */
900 switch (fmt
& SND_SOC_DAIFMT_FORMAT_MASK
) {
901 case SND_SOC_DAIFMT_I2S
:
904 case SND_SOC_DAIFMT_RIGHT_J
:
906 case SND_SOC_DAIFMT_LEFT_J
:
909 case SND_SOC_DAIFMT_DSP_A
:
912 case SND_SOC_DAIFMT_DSP_B
:
919 wm8753_write(codec
, WM8753_PCM
, voice
);
924 * Set PCM DAI bit size and sample rate.
926 static int wm8753_pcm_hw_params(struct snd_pcm_substream
*substream
,
927 struct snd_pcm_hw_params
*params
)
929 struct snd_soc_pcm_runtime
*rtd
= substream
->private_data
;
930 struct snd_soc_device
*socdev
= rtd
->socdev
;
931 struct snd_soc_codec
*codec
= socdev
->codec
;
932 struct wm8753_priv
*wm8753
= codec
->private_data
;
933 u16 voice
= wm8753_read_reg_cache(codec
, WM8753_PCM
) & 0x01f3;
934 u16 srate
= wm8753_read_reg_cache(codec
, WM8753_SRATE1
) & 0x017f;
937 switch (params_format(params
)) {
938 case SNDRV_PCM_FORMAT_S16_LE
:
940 case SNDRV_PCM_FORMAT_S20_3LE
:
943 case SNDRV_PCM_FORMAT_S24_LE
:
946 case SNDRV_PCM_FORMAT_S32_LE
:
952 if (params_rate(params
) * 384 == wm8753
->pcmclk
)
954 wm8753_write(codec
, WM8753_SRATE1
, srate
);
956 wm8753_write(codec
, WM8753_PCM
, voice
);
961 * Set's PCM dai fmt and BCLK.
963 static int wm8753_pcm_set_dai_fmt(struct snd_soc_dai
*codec_dai
,
966 struct snd_soc_codec
*codec
= codec_dai
->codec
;
969 voice
= wm8753_read_reg_cache(codec
, WM8753_PCM
) & 0x011f;
970 ioctl
= wm8753_read_reg_cache(codec
, WM8753_IOCTL
) & 0x015d;
972 /* set master/slave audio interface */
973 switch (fmt
& SND_SOC_DAIFMT_MASTER_MASK
) {
974 case SND_SOC_DAIFMT_CBS_CFS
:
976 case SND_SOC_DAIFMT_CBM_CFM
:
978 case SND_SOC_DAIFMT_CBM_CFS
:
985 /* clock inversion */
986 switch (fmt
& SND_SOC_DAIFMT_FORMAT_MASK
) {
987 case SND_SOC_DAIFMT_DSP_A
:
988 case SND_SOC_DAIFMT_DSP_B
:
989 /* frame inversion not valid for DSP modes */
990 switch (fmt
& SND_SOC_DAIFMT_INV_MASK
) {
991 case SND_SOC_DAIFMT_NB_NF
:
993 case SND_SOC_DAIFMT_IB_NF
:
1000 case SND_SOC_DAIFMT_I2S
:
1001 case SND_SOC_DAIFMT_RIGHT_J
:
1002 case SND_SOC_DAIFMT_LEFT_J
:
1004 switch (fmt
& SND_SOC_DAIFMT_INV_MASK
) {
1005 case SND_SOC_DAIFMT_NB_NF
:
1007 case SND_SOC_DAIFMT_IB_IF
:
1010 case SND_SOC_DAIFMT_IB_NF
:
1013 case SND_SOC_DAIFMT_NB_IF
:
1024 wm8753_write(codec
, WM8753_PCM
, voice
);
1025 wm8753_write(codec
, WM8753_IOCTL
, ioctl
);
1029 static int wm8753_set_dai_clkdiv(struct snd_soc_dai
*codec_dai
,
1030 int div_id
, int div
)
1032 struct snd_soc_codec
*codec
= codec_dai
->codec
;
1037 reg
= wm8753_read_reg_cache(codec
, WM8753_CLOCK
) & 0x003f;
1038 wm8753_write(codec
, WM8753_CLOCK
, reg
| div
);
1040 case WM8753_BCLKDIV
:
1041 reg
= wm8753_read_reg_cache(codec
, WM8753_SRATE2
) & 0x01c7;
1042 wm8753_write(codec
, WM8753_SRATE2
, reg
| div
);
1044 case WM8753_VXCLKDIV
:
1045 reg
= wm8753_read_reg_cache(codec
, WM8753_SRATE2
) & 0x003f;
1046 wm8753_write(codec
, WM8753_SRATE2
, reg
| div
);
1055 * Set's HiFi DAC format.
1057 static int wm8753_hdac_set_dai_fmt(struct snd_soc_dai
*codec_dai
,
1060 struct snd_soc_codec
*codec
= codec_dai
->codec
;
1061 u16 hifi
= wm8753_read_reg_cache(codec
, WM8753_HIFI
) & 0x01e0;
1063 /* interface format */
1064 switch (fmt
& SND_SOC_DAIFMT_FORMAT_MASK
) {
1065 case SND_SOC_DAIFMT_I2S
:
1068 case SND_SOC_DAIFMT_RIGHT_J
:
1070 case SND_SOC_DAIFMT_LEFT_J
:
1073 case SND_SOC_DAIFMT_DSP_A
:
1076 case SND_SOC_DAIFMT_DSP_B
:
1083 wm8753_write(codec
, WM8753_HIFI
, hifi
);
1088 * Set's I2S DAI format.
1090 static int wm8753_i2s_set_dai_fmt(struct snd_soc_dai
*codec_dai
,
1093 struct snd_soc_codec
*codec
= codec_dai
->codec
;
1096 hifi
= wm8753_read_reg_cache(codec
, WM8753_HIFI
) & 0x011f;
1097 ioctl
= wm8753_read_reg_cache(codec
, WM8753_IOCTL
) & 0x00ae;
1099 /* set master/slave audio interface */
1100 switch (fmt
& SND_SOC_DAIFMT_MASTER_MASK
) {
1101 case SND_SOC_DAIFMT_CBS_CFS
:
1103 case SND_SOC_DAIFMT_CBM_CFM
:
1105 case SND_SOC_DAIFMT_CBM_CFS
:
1112 /* clock inversion */
1113 switch (fmt
& SND_SOC_DAIFMT_FORMAT_MASK
) {
1114 case SND_SOC_DAIFMT_DSP_A
:
1115 case SND_SOC_DAIFMT_DSP_B
:
1116 /* frame inversion not valid for DSP modes */
1117 switch (fmt
& SND_SOC_DAIFMT_INV_MASK
) {
1118 case SND_SOC_DAIFMT_NB_NF
:
1120 case SND_SOC_DAIFMT_IB_NF
:
1127 case SND_SOC_DAIFMT_I2S
:
1128 case SND_SOC_DAIFMT_RIGHT_J
:
1129 case SND_SOC_DAIFMT_LEFT_J
:
1131 switch (fmt
& SND_SOC_DAIFMT_INV_MASK
) {
1132 case SND_SOC_DAIFMT_NB_NF
:
1134 case SND_SOC_DAIFMT_IB_IF
:
1137 case SND_SOC_DAIFMT_IB_NF
:
1140 case SND_SOC_DAIFMT_NB_IF
:
1151 wm8753_write(codec
, WM8753_HIFI
, hifi
);
1152 wm8753_write(codec
, WM8753_IOCTL
, ioctl
);
1157 * Set PCM DAI bit size and sample rate.
1159 static int wm8753_i2s_hw_params(struct snd_pcm_substream
*substream
,
1160 struct snd_pcm_hw_params
*params
)
1162 struct snd_soc_pcm_runtime
*rtd
= substream
->private_data
;
1163 struct snd_soc_device
*socdev
= rtd
->socdev
;
1164 struct snd_soc_codec
*codec
= socdev
->codec
;
1165 struct wm8753_priv
*wm8753
= codec
->private_data
;
1166 u16 srate
= wm8753_read_reg_cache(codec
, WM8753_SRATE1
) & 0x01c0;
1167 u16 hifi
= wm8753_read_reg_cache(codec
, WM8753_HIFI
) & 0x01f3;
1170 /* is digital filter coefficient valid ? */
1171 coeff
= get_coeff(wm8753
->sysclk
, params_rate(params
));
1173 printk(KERN_ERR
"wm8753 invalid MCLK or rate\n");
1176 wm8753_write(codec
, WM8753_SRATE1
, srate
| (coeff_div
[coeff
].sr
<< 1) |
1177 coeff_div
[coeff
].usb
);
1180 switch (params_format(params
)) {
1181 case SNDRV_PCM_FORMAT_S16_LE
:
1183 case SNDRV_PCM_FORMAT_S20_3LE
:
1186 case SNDRV_PCM_FORMAT_S24_LE
:
1189 case SNDRV_PCM_FORMAT_S32_LE
:
1194 wm8753_write(codec
, WM8753_HIFI
, hifi
);
1198 static int wm8753_mode1v_set_dai_fmt(struct snd_soc_dai
*codec_dai
,
1201 struct snd_soc_codec
*codec
= codec_dai
->codec
;
1204 /* set clk source as pcmclk */
1205 clock
= wm8753_read_reg_cache(codec
, WM8753_CLOCK
) & 0xfffb;
1206 wm8753_write(codec
, WM8753_CLOCK
, clock
);
1208 if (wm8753_vdac_adc_set_dai_fmt(codec_dai
, fmt
) < 0)
1210 return wm8753_pcm_set_dai_fmt(codec_dai
, fmt
);
1213 static int wm8753_mode1h_set_dai_fmt(struct snd_soc_dai
*codec_dai
,
1216 if (wm8753_hdac_set_dai_fmt(codec_dai
, fmt
) < 0)
1218 return wm8753_i2s_set_dai_fmt(codec_dai
, fmt
);
1221 static int wm8753_mode2_set_dai_fmt(struct snd_soc_dai
*codec_dai
,
1224 struct snd_soc_codec
*codec
= codec_dai
->codec
;
1227 /* set clk source as pcmclk */
1228 clock
= wm8753_read_reg_cache(codec
, WM8753_CLOCK
) & 0xfffb;
1229 wm8753_write(codec
, WM8753_CLOCK
, clock
);
1231 if (wm8753_vdac_adc_set_dai_fmt(codec_dai
, fmt
) < 0)
1233 return wm8753_i2s_set_dai_fmt(codec_dai
, fmt
);
1236 static int wm8753_mode3_4_set_dai_fmt(struct snd_soc_dai
*codec_dai
,
1239 struct snd_soc_codec
*codec
= codec_dai
->codec
;
1242 /* set clk source as mclk */
1243 clock
= wm8753_read_reg_cache(codec
, WM8753_CLOCK
) & 0xfffb;
1244 wm8753_write(codec
, WM8753_CLOCK
, clock
| 0x4);
1246 if (wm8753_hdac_set_dai_fmt(codec_dai
, fmt
) < 0)
1248 if (wm8753_vdac_adc_set_dai_fmt(codec_dai
, fmt
) < 0)
1250 return wm8753_i2s_set_dai_fmt(codec_dai
, fmt
);
1253 static int wm8753_mute(struct snd_soc_dai
*dai
, int mute
)
1255 struct snd_soc_codec
*codec
= dai
->codec
;
1256 u16 mute_reg
= wm8753_read_reg_cache(codec
, WM8753_DAC
) & 0xfff7;
1258 /* the digital mute covers the HiFi and Voice DAC's on the WM8753.
1259 * make sure we check if they are not both active when we mute */
1260 if (mute
&& dai
->id
== 1) {
1261 if (!wm8753_dai
[WM8753_DAI_VOICE
].playback
.active
||
1262 !wm8753_dai
[WM8753_DAI_HIFI
].playback
.active
)
1263 wm8753_write(codec
, WM8753_DAC
, mute_reg
| 0x8);
1266 wm8753_write(codec
, WM8753_DAC
, mute_reg
| 0x8);
1268 wm8753_write(codec
, WM8753_DAC
, mute_reg
);
1274 static int wm8753_set_bias_level(struct snd_soc_codec
*codec
,
1275 enum snd_soc_bias_level level
)
1277 u16 pwr_reg
= wm8753_read_reg_cache(codec
, WM8753_PWR1
) & 0xfe3e;
1280 case SND_SOC_BIAS_ON
:
1281 /* set vmid to 50k and unmute dac */
1282 wm8753_write(codec
, WM8753_PWR1
, pwr_reg
| 0x00c0);
1284 case SND_SOC_BIAS_PREPARE
:
1285 /* set vmid to 5k for quick power up */
1286 wm8753_write(codec
, WM8753_PWR1
, pwr_reg
| 0x01c1);
1288 case SND_SOC_BIAS_STANDBY
:
1289 /* mute dac and set vmid to 500k, enable VREF */
1290 wm8753_write(codec
, WM8753_PWR1
, pwr_reg
| 0x0141);
1292 case SND_SOC_BIAS_OFF
:
1293 wm8753_write(codec
, WM8753_PWR1
, 0x0001);
1296 codec
->bias_level
= level
;
1300 #define WM8753_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\
1301 SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 |\
1302 SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 |\
1303 SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000)
1305 #define WM8753_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
1306 SNDRV_PCM_FMTBIT_S24_LE)
1309 * The WM8753 supports upto 4 different and mutually exclusive DAI
1310 * configurations. This gives 2 PCM's available for use, hifi and voice.
1311 * NOTE: The Voice PCM cannot play or capture audio to the CPU as it's DAI
1312 * is connected between the wm8753 and a BT codec or GSM modem.
1314 * 1. Voice over PCM DAI - HIFI DAC over HIFI DAI
1315 * 2. Voice over HIFI DAI - HIFI disabled
1316 * 3. Voice disabled - HIFI over HIFI
1317 * 4. Voice disabled - HIFI over HIFI, uses voice DAI LRC for capture
1319 static const struct snd_soc_dai wm8753_all_dai
[] = {
1320 /* DAI HiFi mode 1 */
1321 { .name
= "WM8753 HiFi",
1324 .stream_name
= "HiFi Playback",
1327 .rates
= WM8753_RATES
,
1328 .formats
= WM8753_FORMATS
,},
1329 .capture
= { /* dummy for fast DAI switching */
1330 .stream_name
= "Capture",
1333 .rates
= WM8753_RATES
,
1334 .formats
= WM8753_FORMATS
,},
1336 .hw_params
= wm8753_i2s_hw_params
,},
1338 .digital_mute
= wm8753_mute
,
1339 .set_fmt
= wm8753_mode1h_set_dai_fmt
,
1340 .set_clkdiv
= wm8753_set_dai_clkdiv
,
1341 .set_pll
= wm8753_set_dai_pll
,
1342 .set_sysclk
= wm8753_set_dai_sysclk
,
1345 /* DAI Voice mode 1 */
1346 { .name
= "WM8753 Voice",
1349 .stream_name
= "Voice Playback",
1352 .rates
= WM8753_RATES
,
1353 .formats
= WM8753_FORMATS
,},
1355 .stream_name
= "Capture",
1358 .rates
= WM8753_RATES
,
1359 .formats
= WM8753_FORMATS
,},
1361 .hw_params
= wm8753_pcm_hw_params
,},
1363 .digital_mute
= wm8753_mute
,
1364 .set_fmt
= wm8753_mode1v_set_dai_fmt
,
1365 .set_clkdiv
= wm8753_set_dai_clkdiv
,
1366 .set_pll
= wm8753_set_dai_pll
,
1367 .set_sysclk
= wm8753_set_dai_sysclk
,
1370 /* DAI HiFi mode 2 - dummy */
1371 { .name
= "WM8753 HiFi",
1374 /* DAI Voice mode 2 */
1375 { .name
= "WM8753 Voice",
1378 .stream_name
= "Voice Playback",
1381 .rates
= WM8753_RATES
,
1382 .formats
= WM8753_FORMATS
,},
1384 .stream_name
= "Capture",
1387 .rates
= WM8753_RATES
,
1388 .formats
= WM8753_FORMATS
,},
1390 .hw_params
= wm8753_pcm_hw_params
,},
1392 .digital_mute
= wm8753_mute
,
1393 .set_fmt
= wm8753_mode2_set_dai_fmt
,
1394 .set_clkdiv
= wm8753_set_dai_clkdiv
,
1395 .set_pll
= wm8753_set_dai_pll
,
1396 .set_sysclk
= wm8753_set_dai_sysclk
,
1399 /* DAI HiFi mode 3 */
1400 { .name
= "WM8753 HiFi",
1403 .stream_name
= "HiFi Playback",
1406 .rates
= WM8753_RATES
,
1407 .formats
= WM8753_FORMATS
,},
1409 .stream_name
= "Capture",
1412 .rates
= WM8753_RATES
,
1413 .formats
= WM8753_FORMATS
,},
1415 .hw_params
= wm8753_i2s_hw_params
,},
1417 .digital_mute
= wm8753_mute
,
1418 .set_fmt
= wm8753_mode3_4_set_dai_fmt
,
1419 .set_clkdiv
= wm8753_set_dai_clkdiv
,
1420 .set_pll
= wm8753_set_dai_pll
,
1421 .set_sysclk
= wm8753_set_dai_sysclk
,
1424 /* DAI Voice mode 3 - dummy */
1425 { .name
= "WM8753 Voice",
1428 /* DAI HiFi mode 4 */
1429 { .name
= "WM8753 HiFi",
1432 .stream_name
= "HiFi Playback",
1435 .rates
= WM8753_RATES
,
1436 .formats
= WM8753_FORMATS
,},
1438 .stream_name
= "Capture",
1441 .rates
= WM8753_RATES
,
1442 .formats
= WM8753_FORMATS
,},
1444 .hw_params
= wm8753_i2s_hw_params
,},
1446 .digital_mute
= wm8753_mute
,
1447 .set_fmt
= wm8753_mode3_4_set_dai_fmt
,
1448 .set_clkdiv
= wm8753_set_dai_clkdiv
,
1449 .set_pll
= wm8753_set_dai_pll
,
1450 .set_sysclk
= wm8753_set_dai_sysclk
,
1453 /* DAI Voice mode 4 - dummy */
1454 { .name
= "WM8753 Voice",
1459 struct snd_soc_dai wm8753_dai
[2];
1460 EXPORT_SYMBOL_GPL(wm8753_dai
);
1462 static void wm8753_set_dai_mode(struct snd_soc_codec
*codec
, unsigned int mode
)
1465 int playback_active
, capture_active
, codec_active
, pop_wait
;
1468 playback_active
= wm8753_dai
[0].playback
.active
;
1469 capture_active
= wm8753_dai
[0].capture
.active
;
1470 codec_active
= wm8753_dai
[0].active
;
1471 private_data
= wm8753_dai
[0].private_data
;
1472 pop_wait
= wm8753_dai
[0].pop_wait
;
1473 wm8753_dai
[0] = wm8753_all_dai
[mode
<< 1];
1474 wm8753_dai
[0].playback
.active
= playback_active
;
1475 wm8753_dai
[0].capture
.active
= capture_active
;
1476 wm8753_dai
[0].active
= codec_active
;
1477 wm8753_dai
[0].private_data
= private_data
;
1478 wm8753_dai
[0].pop_wait
= pop_wait
;
1480 playback_active
= wm8753_dai
[1].playback
.active
;
1481 capture_active
= wm8753_dai
[1].capture
.active
;
1482 codec_active
= wm8753_dai
[1].active
;
1483 private_data
= wm8753_dai
[1].private_data
;
1484 pop_wait
= wm8753_dai
[1].pop_wait
;
1485 wm8753_dai
[1] = wm8753_all_dai
[(mode
<< 1) + 1];
1486 wm8753_dai
[1].playback
.active
= playback_active
;
1487 wm8753_dai
[1].capture
.active
= capture_active
;
1488 wm8753_dai
[1].active
= codec_active
;
1489 wm8753_dai
[1].private_data
= private_data
;
1490 wm8753_dai
[1].pop_wait
= pop_wait
;
1492 wm8753_dai
[0].codec
= codec
;
1493 wm8753_dai
[1].codec
= codec
;
1496 static void wm8753_work(struct work_struct
*work
)
1498 struct snd_soc_codec
*codec
=
1499 container_of(work
, struct snd_soc_codec
, delayed_work
.work
);
1500 wm8753_set_bias_level(codec
, codec
->bias_level
);
1503 static int wm8753_suspend(struct platform_device
*pdev
, pm_message_t state
)
1505 struct snd_soc_device
*socdev
= platform_get_drvdata(pdev
);
1506 struct snd_soc_codec
*codec
= socdev
->codec
;
1508 /* we only need to suspend if we are a valid card */
1512 wm8753_set_bias_level(codec
, SND_SOC_BIAS_OFF
);
1516 static int wm8753_resume(struct platform_device
*pdev
)
1518 struct snd_soc_device
*socdev
= platform_get_drvdata(pdev
);
1519 struct snd_soc_codec
*codec
= socdev
->codec
;
1522 u16
*cache
= codec
->reg_cache
;
1524 /* we only need to resume if we are a valid card */
1528 /* Sync reg_cache with the hardware */
1529 for (i
= 0; i
< ARRAY_SIZE(wm8753_reg
); i
++) {
1530 if (i
+ 1 == WM8753_RESET
)
1532 data
[0] = ((i
+ 1) << 1) | ((cache
[i
] >> 8) & 0x0001);
1533 data
[1] = cache
[i
] & 0x00ff;
1534 codec
->hw_write(codec
->control_data
, data
, 2);
1537 wm8753_set_bias_level(codec
, SND_SOC_BIAS_STANDBY
);
1539 /* charge wm8753 caps */
1540 if (codec
->suspend_bias_level
== SND_SOC_BIAS_ON
) {
1541 wm8753_set_bias_level(codec
, SND_SOC_BIAS_PREPARE
);
1542 codec
->bias_level
= SND_SOC_BIAS_ON
;
1543 schedule_delayed_work(&codec
->delayed_work
,
1544 msecs_to_jiffies(caps_charge
));
1551 * initialise the WM8753 driver
1552 * register the mixer and dsp interfaces with the kernel
1554 static int wm8753_init(struct snd_soc_device
*socdev
)
1556 struct snd_soc_codec
*codec
= socdev
->codec
;
1559 codec
->name
= "WM8753";
1560 codec
->owner
= THIS_MODULE
;
1561 codec
->read
= wm8753_read_reg_cache
;
1562 codec
->write
= wm8753_write
;
1563 codec
->set_bias_level
= wm8753_set_bias_level
;
1564 codec
->dai
= wm8753_dai
;
1566 codec
->reg_cache_size
= ARRAY_SIZE(wm8753_reg
);
1567 codec
->reg_cache
= kmemdup(wm8753_reg
, sizeof(wm8753_reg
), GFP_KERNEL
);
1569 if (codec
->reg_cache
== NULL
)
1572 wm8753_set_dai_mode(codec
, 0);
1574 wm8753_reset(codec
);
1577 ret
= snd_soc_new_pcms(socdev
, SNDRV_DEFAULT_IDX1
, SNDRV_DEFAULT_STR1
);
1579 printk(KERN_ERR
"wm8753: failed to create pcms\n");
1583 /* charge output caps */
1584 wm8753_set_bias_level(codec
, SND_SOC_BIAS_PREPARE
);
1585 codec
->bias_level
= SND_SOC_BIAS_STANDBY
;
1586 schedule_delayed_work(&codec
->delayed_work
,
1587 msecs_to_jiffies(caps_charge
));
1589 /* set the update bits */
1590 reg
= wm8753_read_reg_cache(codec
, WM8753_LDAC
);
1591 wm8753_write(codec
, WM8753_LDAC
, reg
| 0x0100);
1592 reg
= wm8753_read_reg_cache(codec
, WM8753_RDAC
);
1593 wm8753_write(codec
, WM8753_RDAC
, reg
| 0x0100);
1594 reg
= wm8753_read_reg_cache(codec
, WM8753_LADC
);
1595 wm8753_write(codec
, WM8753_LADC
, reg
| 0x0100);
1596 reg
= wm8753_read_reg_cache(codec
, WM8753_RADC
);
1597 wm8753_write(codec
, WM8753_RADC
, reg
| 0x0100);
1598 reg
= wm8753_read_reg_cache(codec
, WM8753_LOUT1V
);
1599 wm8753_write(codec
, WM8753_LOUT1V
, reg
| 0x0100);
1600 reg
= wm8753_read_reg_cache(codec
, WM8753_ROUT1V
);
1601 wm8753_write(codec
, WM8753_ROUT1V
, reg
| 0x0100);
1602 reg
= wm8753_read_reg_cache(codec
, WM8753_LOUT2V
);
1603 wm8753_write(codec
, WM8753_LOUT2V
, reg
| 0x0100);
1604 reg
= wm8753_read_reg_cache(codec
, WM8753_ROUT2V
);
1605 wm8753_write(codec
, WM8753_ROUT2V
, reg
| 0x0100);
1606 reg
= wm8753_read_reg_cache(codec
, WM8753_LINVOL
);
1607 wm8753_write(codec
, WM8753_LINVOL
, reg
| 0x0100);
1608 reg
= wm8753_read_reg_cache(codec
, WM8753_RINVOL
);
1609 wm8753_write(codec
, WM8753_RINVOL
, reg
| 0x0100);
1611 wm8753_add_controls(codec
);
1612 wm8753_add_widgets(codec
);
1613 ret
= snd_soc_register_card(socdev
);
1615 printk(KERN_ERR
"wm8753: failed to register card\n");
1622 snd_soc_free_pcms(socdev
);
1623 snd_soc_dapm_free(socdev
);
1625 kfree(codec
->reg_cache
);
1629 /* If the i2c layer weren't so broken, we could pass this kind of data
1631 static struct snd_soc_device
*wm8753_socdev
;
1633 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
1636 * WM8753 2 wire address is determined by GPIO5
1637 * state during powerup.
1641 static unsigned short normal_i2c
[] = { 0, I2C_CLIENT_END
};
1643 /* Magic definition of all other variables and things */
1646 static struct i2c_driver wm8753_i2c_driver
;
1647 static struct i2c_client client_template
;
1649 static int wm8753_codec_probe(struct i2c_adapter
*adap
, int addr
, int kind
)
1651 struct snd_soc_device
*socdev
= wm8753_socdev
;
1652 struct wm8753_setup_data
*setup
= socdev
->codec_data
;
1653 struct snd_soc_codec
*codec
= socdev
->codec
;
1654 struct i2c_client
*i2c
;
1657 if (addr
!= setup
->i2c_address
)
1660 client_template
.adapter
= adap
;
1661 client_template
.addr
= addr
;
1663 i2c
= kmemdup(&client_template
, sizeof(client_template
), GFP_KERNEL
);
1668 i2c_set_clientdata(i2c
, codec
);
1669 codec
->control_data
= i2c
;
1671 ret
= i2c_attach_client(i2c
);
1673 pr_err("failed to attach codec at addr %x\n", addr
);
1677 ret
= wm8753_init(socdev
);
1679 pr_err("failed to initialise WM8753\n");
1691 static int wm8753_i2c_detach(struct i2c_client
*client
)
1693 struct snd_soc_codec
*codec
= i2c_get_clientdata(client
);
1694 i2c_detach_client(client
);
1695 kfree(codec
->reg_cache
);
1700 static int wm8753_i2c_attach(struct i2c_adapter
*adap
)
1702 return i2c_probe(adap
, &addr_data
, wm8753_codec_probe
);
1705 /* corgi i2c codec control layer */
1706 static struct i2c_driver wm8753_i2c_driver
= {
1708 .name
= "WM8753 I2C Codec",
1709 .owner
= THIS_MODULE
,
1711 .id
= I2C_DRIVERID_WM8753
,
1712 .attach_adapter
= wm8753_i2c_attach
,
1713 .detach_client
= wm8753_i2c_detach
,
1717 static struct i2c_client client_template
= {
1719 .driver
= &wm8753_i2c_driver
,
1723 static int wm8753_probe(struct platform_device
*pdev
)
1725 struct snd_soc_device
*socdev
= platform_get_drvdata(pdev
);
1726 struct wm8753_setup_data
*setup
;
1727 struct snd_soc_codec
*codec
;
1728 struct wm8753_priv
*wm8753
;
1731 pr_info("WM8753 Audio Codec %s", WM8753_VERSION
);
1733 setup
= socdev
->codec_data
;
1734 codec
= kzalloc(sizeof(struct snd_soc_codec
), GFP_KERNEL
);
1738 wm8753
= kzalloc(sizeof(struct wm8753_priv
), GFP_KERNEL
);
1739 if (wm8753
== NULL
) {
1744 codec
->private_data
= wm8753
;
1745 socdev
->codec
= codec
;
1746 mutex_init(&codec
->mutex
);
1747 INIT_LIST_HEAD(&codec
->dapm_widgets
);
1748 INIT_LIST_HEAD(&codec
->dapm_paths
);
1749 wm8753_socdev
= socdev
;
1750 INIT_DELAYED_WORK(&codec
->delayed_work
, wm8753_work
);
1752 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
1753 if (setup
->i2c_address
) {
1754 normal_i2c
[0] = setup
->i2c_address
;
1755 codec
->hw_write
= (hw_write_t
)i2c_master_send
;
1756 ret
= i2c_add_driver(&wm8753_i2c_driver
);
1758 printk(KERN_ERR
"can't add i2c driver");
1761 /* Add other interfaces here */
1767 * This function forces any delayed work to be queued and run.
1769 static int run_delayed_work(struct delayed_work
*dwork
)
1773 /* cancel any work waiting to be queued. */
1774 ret
= cancel_delayed_work(dwork
);
1776 /* if there was any work waiting then we run it now and
1777 * wait for it's completion */
1779 schedule_delayed_work(dwork
, 0);
1780 flush_scheduled_work();
1785 /* power down chip */
1786 static int wm8753_remove(struct platform_device
*pdev
)
1788 struct snd_soc_device
*socdev
= platform_get_drvdata(pdev
);
1789 struct snd_soc_codec
*codec
= socdev
->codec
;
1791 if (codec
->control_data
)
1792 wm8753_set_bias_level(codec
, SND_SOC_BIAS_OFF
);
1793 run_delayed_work(&codec
->delayed_work
);
1794 snd_soc_free_pcms(socdev
);
1795 snd_soc_dapm_free(socdev
);
1796 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
1797 i2c_del_driver(&wm8753_i2c_driver
);
1799 kfree(codec
->private_data
);
1805 struct snd_soc_codec_device soc_codec_dev_wm8753
= {
1806 .probe
= wm8753_probe
,
1807 .remove
= wm8753_remove
,
1808 .suspend
= wm8753_suspend
,
1809 .resume
= wm8753_resume
,
1811 EXPORT_SYMBOL_GPL(soc_codec_dev_wm8753
);
1813 MODULE_DESCRIPTION("ASoC WM8753 driver");
1814 MODULE_AUTHOR("Liam Girdwood");
1815 MODULE_LICENSE("GPL");